TCG patch queue, plus one target/sh4 patch that Yoshinori Sato asked me to process. r~ The following changes since commit efbf38d73e5dcc4d5f8b98c6e7a12be1f3b91745: Merge tag 'for-upstream' of git://repo.or.cz/qemu/kevin into staging (2022-10-03 15:06:07 -0400) are available in the Git repository at: https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20221004 for you to fetch changes up to ab419fd8a035a65942de4e63effcd55ccbf1a9fe: target/sh4: Fix TB_FLAG_UNALIGN (2022-10-04 12:33:05 -0700) ---------------------------------------------------------------- Cache CPUClass for use in hot code paths. Add CPUTLBEntryFull, probe_access_full, tlb_set_page_full. Add generic support for TARGET_TB_PCREL. tcg/ppc: Optimize 26-bit jumps using STQ for POWER 2.07 target/sh4: Fix TB_FLAG_UNALIGN ---------------------------------------------------------------- Alex Bennée (3): cpu: cache CPUClass in CPUState for hot code paths hw/core/cpu-sysemu: used cached class in cpu_asidx_from_attrs cputlb: used cached CPUClass in our hot-paths Leandro Lupori (1): tcg/ppc: Optimize 26-bit jumps Richard Henderson (16): accel/tcg: Rename CPUIOTLBEntry to CPUTLBEntryFull accel/tcg: Drop addr member from SavedIOTLB accel/tcg: Suppress auto-invalidate in probe_access_internal accel/tcg: Introduce probe_access_full accel/tcg: Introduce tlb_set_page_full include/exec: Introduce TARGET_PAGE_ENTRY_EXTRA accel/tcg: Remove PageDesc code_bitmap accel/tcg: Use bool for page_find_alloc accel/tcg: Use DisasContextBase in plugin_gen_tb_start accel/tcg: Do not align tb->page_addr[0] accel/tcg: Inline tb_flush_jmp_cache include/hw/core: Create struct CPUJumpCache hw/core: Add CPUClass.get_pc accel/tcg: Introduce tb_pc and log_pc accel/tcg: Introduce TARGET_TB_PCREL target/sh4: Fix TB_FLAG_UNALIGN accel/tcg/internal.h | 10 ++ accel/tcg/tb-hash.h | 1 + accel/tcg/tb-jmp-cache.h | 65 ++++++++ include/exec/cpu-common.h | 1 + include/exec/cpu-defs.h | 48 ++++-- include/exec/exec-all.h | 75 ++++++++- include/exec/plugin-gen.h | 7 +- include/hw/core/cpu.h | 28 ++-- include/qemu/typedefs.h | 2 + include/tcg/tcg.h | 2 +- target/sh4/cpu.h | 56 ++++--- accel/stubs/tcg-stub.c | 4 + accel/tcg/cpu-exec.c | 80 +++++----- accel/tcg/cputlb.c | 259 ++++++++++++++++++-------------- accel/tcg/plugin-gen.c | 22 +-- accel/tcg/translate-all.c | 214 ++++++++++++-------------- accel/tcg/translator.c | 2 +- cpu.c | 9 +- hw/core/cpu-common.c | 3 +- hw/core/cpu-sysemu.c | 5 +- linux-user/sh4/signal.c | 6 +- plugins/core.c | 2 +- target/alpha/cpu.c | 9 ++ target/arm/cpu.c | 17 ++- target/arm/mte_helper.c | 14 +- target/arm/sve_helper.c | 4 +- target/arm/translate-a64.c | 2 +- target/avr/cpu.c | 10 +- target/cris/cpu.c | 8 + target/hexagon/cpu.c | 10 +- target/hppa/cpu.c | 12 +- target/i386/cpu.c | 9 ++ target/i386/tcg/tcg-cpu.c | 2 +- target/loongarch/cpu.c | 11 +- target/m68k/cpu.c | 8 + target/microblaze/cpu.c | 10 +- target/mips/cpu.c | 8 + target/mips/tcg/exception.c | 2 +- target/mips/tcg/sysemu/special_helper.c | 2 +- target/nios2/cpu.c | 9 ++ target/openrisc/cpu.c | 10 +- target/ppc/cpu_init.c | 8 + target/riscv/cpu.c | 17 ++- target/rx/cpu.c | 10 +- target/s390x/cpu.c | 8 + target/s390x/tcg/mem_helper.c | 4 - target/sh4/cpu.c | 18 ++- target/sh4/helper.c | 6 +- target/sh4/translate.c | 90 +++++------ target/sparc/cpu.c | 10 +- target/tricore/cpu.c | 11 +- target/xtensa/cpu.c | 8 + tcg/tcg.c | 8 +- trace/control-target.c | 2 +- tcg/ppc/tcg-target.c.inc | 119 +++++++++++---- 55 files changed, 915 insertions(+), 462 deletions(-) create mode 100644 accel/tcg/tb-jmp-cache.h From: Alex Bennée <alex.bennee@linaro.org> The class cast checkers are quite expensive and always on (unlike the dynamic case who's checks are gated by CONFIG_QOM_CAST_DEBUG). To avoid the overhead of repeatedly checking something which should never change we cache the CPUClass reference for use in the hot code paths. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220811151413.3350684-3-alex.bennee@linaro.org> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220923084803.498337-3-clg@kaod.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/hw/core/cpu.h | 9 +++++++++ cpu.c | 9 ++++----- 2 files changed, 13 insertions(+), 5 deletions(-) diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -XXX,XX +XXX,XX @@ typedef int (*WriteCoreDumpFunction)(const void *buf, size_t size, */ #define CPU(obj) ((CPUState *)(obj)) +/* + * The class checkers bring in CPU_GET_CLASS() which is potentially + * expensive given the eventual call to + * object_class_dynamic_cast_assert(). Because of this the CPUState + * has a cached value for the class in cs->cc which is set up in + * cpu_exec_realizefn() for use in hot code paths. + */ typedef struct CPUClass CPUClass; DECLARE_CLASS_CHECKERS(CPUClass, CPU, TYPE_CPU) @@ -XXX,XX +XXX,XX @@ struct qemu_work_item; struct CPUState { /*< private >*/ DeviceState parent_obj; + /* cache to avoid expensive CPU_GET_CLASS */ + CPUClass *cc; /*< public >*/ int nr_cores; diff --git a/cpu.c b/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/cpu.c +++ b/cpu.c @@ -XXX,XX +XXX,XX @@ const VMStateDescription vmstate_cpu_common = { void cpu_exec_realizefn(CPUState *cpu, Error **errp) { -#ifndef CONFIG_USER_ONLY - CPUClass *cc = CPU_GET_CLASS(cpu); -#endif + /* cache the cpu class for the hotpath */ + cpu->cc = CPU_GET_CLASS(cpu); cpu_list_add(cpu); if (!accel_cpu_realizefn(cpu, errp)) { @@ -XXX,XX +XXX,XX @@ void cpu_exec_realizefn(CPUState *cpu, Error **errp) if (qdev_get_vmsd(DEVICE(cpu)) == NULL) { vmstate_register(NULL, cpu->cpu_index, &vmstate_cpu_common, cpu); } - if (cc->sysemu_ops->legacy_vmsd != NULL) { - vmstate_register(NULL, cpu->cpu_index, cc->sysemu_ops->legacy_vmsd, cpu); + if (cpu->cc->sysemu_ops->legacy_vmsd != NULL) { + vmstate_register(NULL, cpu->cpu_index, cpu->cc->sysemu_ops->legacy_vmsd, cpu); } #endif /* CONFIG_USER_ONLY */ } -- 2.34.1 From: Alex Bennée <alex.bennee@linaro.org> This is a heavily used function so lets avoid the cost of CPU_GET_CLASS. On the romulus-bmc run it has a modest effect: Before: 36.812 s ± 0.506 s After: 35.912 s ± 0.168 s Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220811151413.3350684-4-alex.bennee@linaro.org> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220923084803.498337-4-clg@kaod.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- hw/core/cpu-sysemu.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/hw/core/cpu-sysemu.c b/hw/core/cpu-sysemu.c index XXXXXXX..XXXXXXX 100644 --- a/hw/core/cpu-sysemu.c +++ b/hw/core/cpu-sysemu.c @@ -XXX,XX +XXX,XX @@ hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr) int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs) { - CPUClass *cc = CPU_GET_CLASS(cpu); int ret = 0; - if (cc->sysemu_ops->asidx_from_attrs) { - ret = cc->sysemu_ops->asidx_from_attrs(cpu, attrs); + if (cpu->cc->sysemu_ops->asidx_from_attrs) { + ret = cpu->cc->sysemu_ops->asidx_from_attrs(cpu, attrs); assert(ret < cpu->num_ases && ret >= 0); } return ret; -- 2.34.1 From: Alex Bennée <alex.bennee@linaro.org> Before: 35.912 s ± 0.168 s After: 35.565 s ± 0.087 s Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220811151413.3350684-5-alex.bennee@linaro.org> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220923084803.498337-5-clg@kaod.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/cputlb.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ void tlb_set_page(CPUState *cpu, target_ulong vaddr, static void tlb_fill(CPUState *cpu, target_ulong addr, int size, MMUAccessType access_type, int mmu_idx, uintptr_t retaddr) { - CPUClass *cc = CPU_GET_CLASS(cpu); bool ok; /* * This is not a probe, so only valid return is success; failure * should result in exception + longjmp to the cpu loop. */ - ok = cc->tcg_ops->tlb_fill(cpu, addr, size, - access_type, mmu_idx, false, retaddr); + ok = cpu->cc->tcg_ops->tlb_fill(cpu, addr, size, + access_type, mmu_idx, false, retaddr); assert(ok); } @@ -XXX,XX +XXX,XX @@ static inline void cpu_unaligned_access(CPUState *cpu, vaddr addr, MMUAccessType access_type, int mmu_idx, uintptr_t retaddr) { - CPUClass *cc = CPU_GET_CLASS(cpu); - - cc->tcg_ops->do_unaligned_access(cpu, addr, access_type, mmu_idx, retaddr); + cpu->cc->tcg_ops->do_unaligned_access(cpu, addr, access_type, + mmu_idx, retaddr); } static inline void cpu_transaction_failed(CPUState *cpu, hwaddr physaddr, @@ -XXX,XX +XXX,XX @@ static int probe_access_internal(CPUArchState *env, target_ulong addr, if (!tlb_hit_page(tlb_addr, page_addr)) { if (!victim_tlb_hit(env, mmu_idx, index, elt_ofs, page_addr)) { CPUState *cs = env_cpu(env); - CPUClass *cc = CPU_GET_CLASS(cs); - if (!cc->tcg_ops->tlb_fill(cs, addr, fault_size, access_type, - mmu_idx, nonfault, retaddr)) { + if (!cs->cc->tcg_ops->tlb_fill(cs, addr, fault_size, access_type, + mmu_idx, nonfault, retaddr)) { /* Non-faulting page table read failed. */ *phost = NULL; return TLB_INVALID_MASK; -- 2.34.1 This structure will shortly contain more than just data for accessing MMIO. Rename the 'addr' member to 'xlat_section' to more clearly indicate its purpose. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/cpu-defs.h | 22 ++++---- accel/tcg/cputlb.c | 102 +++++++++++++++++++------------------ target/arm/mte_helper.c | 14 ++--- target/arm/sve_helper.c | 4 +- target/arm/translate-a64.c | 2 +- 5 files changed, 73 insertions(+), 71 deletions(-) diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/cpu-defs.h +++ b/include/exec/cpu-defs.h @@ -XXX,XX +XXX,XX @@ typedef uint64_t target_ulong; # endif # endif +/* Minimalized TLB entry for use by TCG fast path. */ typedef struct CPUTLBEntry { /* bit TARGET_LONG_BITS to TARGET_PAGE_BITS : virtual address bit TARGET_PAGE_BITS-1..4 : Nonzero for accesses that should not @@ -XXX,XX +XXX,XX @@ typedef struct CPUTLBEntry { QEMU_BUILD_BUG_ON(sizeof(CPUTLBEntry) != (1 << CPU_TLB_ENTRY_BITS)); -/* The IOTLB is not accessed directly inline by generated TCG code, - * so the CPUIOTLBEntry layout is not as critical as that of the - * CPUTLBEntry. (This is also why we don't want to combine the two - * structs into one.) +/* + * The full TLB entry, which is not accessed by generated TCG code, + * so the layout is not as critical as that of CPUTLBEntry. This is + * also why we don't want to combine the two structs. */ -typedef struct CPUIOTLBEntry { +typedef struct CPUTLBEntryFull { /* - * @addr contains: + * @xlat_section contains: * - in the lower TARGET_PAGE_BITS, a physical section number * - with the lower TARGET_PAGE_BITS masked off, an offset which * must be added to the virtual address to obtain: @@ -XXX,XX +XXX,XX @@ typedef struct CPUIOTLBEntry { * number is PHYS_SECTION_NOTDIRTY or PHYS_SECTION_ROM) * + the offset within the target MemoryRegion (otherwise) */ - hwaddr addr; + hwaddr xlat_section; MemTxAttrs attrs; -} CPUIOTLBEntry; +} CPUTLBEntryFull; /* * Data elements that are per MMU mode, minus the bits accessed by @@ -XXX,XX +XXX,XX @@ typedef struct CPUTLBDesc { size_t vindex; /* The tlb victim table, in two parts. */ CPUTLBEntry vtable[CPU_VTLB_SIZE]; - CPUIOTLBEntry viotlb[CPU_VTLB_SIZE]; - /* The iotlb. */ - CPUIOTLBEntry *iotlb; + CPUTLBEntryFull vfulltlb[CPU_VTLB_SIZE]; + CPUTLBEntryFull *fulltlb; } CPUTLBDesc; /* diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ static void tlb_mmu_resize_locked(CPUTLBDesc *desc, CPUTLBDescFast *fast, } g_free(fast->table); - g_free(desc->iotlb); + g_free(desc->fulltlb); tlb_window_reset(desc, now, 0); /* desc->n_used_entries is cleared by the caller */ fast->mask = (new_size - 1) << CPU_TLB_ENTRY_BITS; fast->table = g_try_new(CPUTLBEntry, new_size); - desc->iotlb = g_try_new(CPUIOTLBEntry, new_size); + desc->fulltlb = g_try_new(CPUTLBEntryFull, new_size); /* * If the allocations fail, try smaller sizes. We just freed some @@ -XXX,XX +XXX,XX @@ static void tlb_mmu_resize_locked(CPUTLBDesc *desc, CPUTLBDescFast *fast, * allocations to fail though, so we progressively reduce the allocation * size, aborting if we cannot even allocate the smallest TLB we support. */ - while (fast->table == NULL || desc->iotlb == NULL) { + while (fast->table == NULL || desc->fulltlb == NULL) { if (new_size == (1 << CPU_TLB_DYN_MIN_BITS)) { error_report("%s: %s", __func__, strerror(errno)); abort(); @@ -XXX,XX +XXX,XX @@ static void tlb_mmu_resize_locked(CPUTLBDesc *desc, CPUTLBDescFast *fast, fast->mask = (new_size - 1) << CPU_TLB_ENTRY_BITS; g_free(fast->table); - g_free(desc->iotlb); + g_free(desc->fulltlb); fast->table = g_try_new(CPUTLBEntry, new_size); - desc->iotlb = g_try_new(CPUIOTLBEntry, new_size); + desc->fulltlb = g_try_new(CPUTLBEntryFull, new_size); } } @@ -XXX,XX +XXX,XX @@ static void tlb_mmu_init(CPUTLBDesc *desc, CPUTLBDescFast *fast, int64_t now) desc->n_used_entries = 0; fast->mask = (n_entries - 1) << CPU_TLB_ENTRY_BITS; fast->table = g_new(CPUTLBEntry, n_entries); - desc->iotlb = g_new(CPUIOTLBEntry, n_entries); + desc->fulltlb = g_new(CPUTLBEntryFull, n_entries); tlb_mmu_flush_locked(desc, fast); } @@ -XXX,XX +XXX,XX @@ void tlb_destroy(CPUState *cpu) CPUTLBDescFast *fast = &env_tlb(env)->f[i]; g_free(fast->table); - g_free(desc->iotlb); + g_free(desc->fulltlb); } } @@ -XXX,XX +XXX,XX @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr, /* Evict the old entry into the victim tlb. */ copy_tlb_helper_locked(tv, te); - desc->viotlb[vidx] = desc->iotlb[index]; + desc->vfulltlb[vidx] = desc->fulltlb[index]; tlb_n_used_entries_dec(env, mmu_idx); } @@ -XXX,XX +XXX,XX @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr, * subtract here is that of the page base, and not the same as the * vaddr we add back in io_readx()/io_writex()/get_page_addr_code(). */ - desc->iotlb[index].addr = iotlb - vaddr_page; - desc->iotlb[index].attrs = attrs; + desc->fulltlb[index].xlat_section = iotlb - vaddr_page; + desc->fulltlb[index].attrs = attrs; /* Now calculate the new entry */ tn.addend = addend - vaddr_page; @@ -XXX,XX +XXX,XX @@ static inline void cpu_transaction_failed(CPUState *cpu, hwaddr physaddr, } } -static uint64_t io_readx(CPUArchState *env, CPUIOTLBEntry *iotlbentry, +static uint64_t io_readx(CPUArchState *env, CPUTLBEntryFull *full, int mmu_idx, target_ulong addr, uintptr_t retaddr, MMUAccessType access_type, MemOp op) { @@ -XXX,XX +XXX,XX @@ static uint64_t io_readx(CPUArchState *env, CPUIOTLBEntry *iotlbentry, bool locked = false; MemTxResult r; - section = iotlb_to_section(cpu, iotlbentry->addr, iotlbentry->attrs); + section = iotlb_to_section(cpu, full->xlat_section, full->attrs); mr = section->mr; - mr_offset = (iotlbentry->addr & TARGET_PAGE_MASK) + addr; + mr_offset = (full->xlat_section & TARGET_PAGE_MASK) + addr; cpu->mem_io_pc = retaddr; if (!cpu->can_do_io) { cpu_io_recompile(cpu, retaddr); @@ -XXX,XX +XXX,XX @@ static uint64_t io_readx(CPUArchState *env, CPUIOTLBEntry *iotlbentry, qemu_mutex_lock_iothread(); locked = true; } - r = memory_region_dispatch_read(mr, mr_offset, &val, op, iotlbentry->attrs); + r = memory_region_dispatch_read(mr, mr_offset, &val, op, full->attrs); if (r != MEMTX_OK) { hwaddr physaddr = mr_offset + section->offset_within_address_space - section->offset_within_region; cpu_transaction_failed(cpu, physaddr, addr, memop_size(op), access_type, - mmu_idx, iotlbentry->attrs, r, retaddr); + mmu_idx, full->attrs, r, retaddr); } if (locked) { qemu_mutex_unlock_iothread(); @@ -XXX,XX +XXX,XX @@ static uint64_t io_readx(CPUArchState *env, CPUIOTLBEntry *iotlbentry, } /* - * Save a potentially trashed IOTLB entry for later lookup by plugin. - * This is read by tlb_plugin_lookup if the iotlb entry doesn't match + * Save a potentially trashed CPUTLBEntryFull for later lookup by plugin. + * This is read by tlb_plugin_lookup if the fulltlb entry doesn't match * because of the side effect of io_writex changing memory layout. */ static void save_iotlb_data(CPUState *cs, hwaddr addr, @@ -XXX,XX +XXX,XX @@ static void save_iotlb_data(CPUState *cs, hwaddr addr, #endif } -static void io_writex(CPUArchState *env, CPUIOTLBEntry *iotlbentry, +static void io_writex(CPUArchState *env, CPUTLBEntryFull *full, int mmu_idx, uint64_t val, target_ulong addr, uintptr_t retaddr, MemOp op) { @@ -XXX,XX +XXX,XX @@ static void io_writex(CPUArchState *env, CPUIOTLBEntry *iotlbentry, bool locked = false; MemTxResult r; - section = iotlb_to_section(cpu, iotlbentry->addr, iotlbentry->attrs); + section = iotlb_to_section(cpu, full->xlat_section, full->attrs); mr = section->mr; - mr_offset = (iotlbentry->addr & TARGET_PAGE_MASK) + addr; + mr_offset = (full->xlat_section & TARGET_PAGE_MASK) + addr; if (!cpu->can_do_io) { cpu_io_recompile(cpu, retaddr); } @@ -XXX,XX +XXX,XX @@ static void io_writex(CPUArchState *env, CPUIOTLBEntry *iotlbentry, * The memory_region_dispatch may trigger a flush/resize * so for plugins we save the iotlb_data just in case. */ - save_iotlb_data(cpu, iotlbentry->addr, section, mr_offset); + save_iotlb_data(cpu, full->xlat_section, section, mr_offset); if (!qemu_mutex_iothread_locked()) { qemu_mutex_lock_iothread(); locked = true; } - r = memory_region_dispatch_write(mr, mr_offset, val, op, iotlbentry->attrs); + r = memory_region_dispatch_write(mr, mr_offset, val, op, full->attrs); if (r != MEMTX_OK) { hwaddr physaddr = mr_offset + section->offset_within_address_space - section->offset_within_region; cpu_transaction_failed(cpu, physaddr, addr, memop_size(op), - MMU_DATA_STORE, mmu_idx, iotlbentry->attrs, r, + MMU_DATA_STORE, mmu_idx, full->attrs, r, retaddr); } if (locked) { @@ -XXX,XX +XXX,XX @@ static bool victim_tlb_hit(CPUArchState *env, size_t mmu_idx, size_t index, copy_tlb_helper_locked(vtlb, &tmptlb); qemu_spin_unlock(&env_tlb(env)->c.lock); - CPUIOTLBEntry tmpio, *io = &env_tlb(env)->d[mmu_idx].iotlb[index]; - CPUIOTLBEntry *vio = &env_tlb(env)->d[mmu_idx].viotlb[vidx]; - tmpio = *io; *io = *vio; *vio = tmpio; + CPUTLBEntryFull *f1 = &env_tlb(env)->d[mmu_idx].fulltlb[index]; + CPUTLBEntryFull *f2 = &env_tlb(env)->d[mmu_idx].vfulltlb[vidx]; + CPUTLBEntryFull tmpf; + tmpf = *f1; *f1 = *f2; *f2 = tmpf; return true; } } @@ -XXX,XX +XXX,XX @@ static bool victim_tlb_hit(CPUArchState *env, size_t mmu_idx, size_t index, (ADDR) & TARGET_PAGE_MASK) static void notdirty_write(CPUState *cpu, vaddr mem_vaddr, unsigned size, - CPUIOTLBEntry *iotlbentry, uintptr_t retaddr) + CPUTLBEntryFull *full, uintptr_t retaddr) { - ram_addr_t ram_addr = mem_vaddr + iotlbentry->addr; + ram_addr_t ram_addr = mem_vaddr + full->xlat_section; trace_memory_notdirty_write_access(mem_vaddr, ram_addr, size); @@ -XXX,XX +XXX,XX @@ int probe_access_flags(CPUArchState *env, target_ulong addr, /* Handle clean RAM pages. */ if (unlikely(flags & TLB_NOTDIRTY)) { uintptr_t index = tlb_index(env, mmu_idx, addr); - CPUIOTLBEntry *iotlbentry = &env_tlb(env)->d[mmu_idx].iotlb[index]; + CPUTLBEntryFull *full = &env_tlb(env)->d[mmu_idx].fulltlb[index]; - notdirty_write(env_cpu(env), addr, 1, iotlbentry, retaddr); + notdirty_write(env_cpu(env), addr, 1, full, retaddr); flags &= ~TLB_NOTDIRTY; } @@ -XXX,XX +XXX,XX @@ void *probe_access(CPUArchState *env, target_ulong addr, int size, if (unlikely(flags & (TLB_NOTDIRTY | TLB_WATCHPOINT))) { uintptr_t index = tlb_index(env, mmu_idx, addr); - CPUIOTLBEntry *iotlbentry = &env_tlb(env)->d[mmu_idx].iotlb[index]; + CPUTLBEntryFull *full = &env_tlb(env)->d[mmu_idx].fulltlb[index]; /* Handle watchpoints. */ if (flags & TLB_WATCHPOINT) { int wp_access = (access_type == MMU_DATA_STORE ? BP_MEM_WRITE : BP_MEM_READ); cpu_check_watchpoint(env_cpu(env), addr, size, - iotlbentry->attrs, wp_access, retaddr); + full->attrs, wp_access, retaddr); } /* Handle clean RAM pages. */ if (flags & TLB_NOTDIRTY) { - notdirty_write(env_cpu(env), addr, 1, iotlbentry, retaddr); + notdirty_write(env_cpu(env), addr, 1, full, retaddr); } } @@ -XXX,XX +XXX,XX @@ tb_page_addr_t get_page_addr_code_hostp(CPUArchState *env, target_ulong addr, * should have just filled the TLB. The one corner case is io_writex * which can cause TLB flushes and potential resizing of the TLBs * losing the information we need. In those cases we need to recover - * data from a copy of the iotlbentry. As long as this always occurs + * data from a copy of the CPUTLBEntryFull. As long as this always occurs * from the same thread (which a mem callback will be) this is safe. */ @@ -XXX,XX +XXX,XX @@ bool tlb_plugin_lookup(CPUState *cpu, target_ulong addr, int mmu_idx, if (likely(tlb_hit(tlb_addr, addr))) { /* We must have an iotlb entry for MMIO */ if (tlb_addr & TLB_MMIO) { - CPUIOTLBEntry *iotlbentry; - iotlbentry = &env_tlb(env)->d[mmu_idx].iotlb[index]; + CPUTLBEntryFull *full; + full = &env_tlb(env)->d[mmu_idx].fulltlb[index]; data->is_io = true; - data->v.io.section = iotlb_to_section(cpu, iotlbentry->addr, iotlbentry->attrs); - data->v.io.offset = (iotlbentry->addr & TARGET_PAGE_MASK) + addr; + data->v.io.section = + iotlb_to_section(cpu, full->xlat_section, full->attrs); + data->v.io.offset = (full->xlat_section & TARGET_PAGE_MASK) + addr; } else { data->is_io = false; data->v.ram.hostaddr = (void *)((uintptr_t)addr + tlbe->addend); @@ -XXX,XX +XXX,XX @@ static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr, if (unlikely(tlb_addr & TLB_NOTDIRTY)) { notdirty_write(env_cpu(env), addr, size, - &env_tlb(env)->d[mmu_idx].iotlb[index], retaddr); + &env_tlb(env)->d[mmu_idx].fulltlb[index], retaddr); } return hostaddr; @@ -XXX,XX +XXX,XX @@ load_helper(CPUArchState *env, target_ulong addr, MemOpIdx oi, /* Handle anything that isn't just a straight memory access. */ if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) { - CPUIOTLBEntry *iotlbentry; + CPUTLBEntryFull *full; bool need_swap; /* For anything that is unaligned, recurse through full_load. */ @@ -XXX,XX +XXX,XX @@ load_helper(CPUArchState *env, target_ulong addr, MemOpIdx oi, goto do_unaligned_access; } - iotlbentry = &env_tlb(env)->d[mmu_idx].iotlb[index]; + full = &env_tlb(env)->d[mmu_idx].fulltlb[index]; /* Handle watchpoints. */ if (unlikely(tlb_addr & TLB_WATCHPOINT)) { /* On watchpoint hit, this will longjmp out. */ cpu_check_watchpoint(env_cpu(env), addr, size, - iotlbentry->attrs, BP_MEM_READ, retaddr); + full->attrs, BP_MEM_READ, retaddr); } need_swap = size > 1 && (tlb_addr & TLB_BSWAP); /* Handle I/O access. */ if (likely(tlb_addr & TLB_MMIO)) { - return io_readx(env, iotlbentry, mmu_idx, addr, retaddr, + return io_readx(env, full, mmu_idx, addr, retaddr, access_type, op ^ (need_swap * MO_BSWAP)); } @@ -XXX,XX +XXX,XX @@ store_helper_unaligned(CPUArchState *env, target_ulong addr, uint64_t val, */ if (unlikely(tlb_addr & TLB_WATCHPOINT)) { cpu_check_watchpoint(env_cpu(env), addr, size - size2, - env_tlb(env)->d[mmu_idx].iotlb[index].attrs, + env_tlb(env)->d[mmu_idx].fulltlb[index].attrs, BP_MEM_WRITE, retaddr); } if (unlikely(tlb_addr2 & TLB_WATCHPOINT)) { cpu_check_watchpoint(env_cpu(env), page2, size2, - env_tlb(env)->d[mmu_idx].iotlb[index2].attrs, + env_tlb(env)->d[mmu_idx].fulltlb[index2].attrs, BP_MEM_WRITE, retaddr); } @@ -XXX,XX +XXX,XX @@ store_helper(CPUArchState *env, target_ulong addr, uint64_t val, /* Handle anything that isn't just a straight memory access. */ if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) { - CPUIOTLBEntry *iotlbentry; + CPUTLBEntryFull *full; bool need_swap; /* For anything that is unaligned, recurse through byte stores. */ @@ -XXX,XX +XXX,XX @@ store_helper(CPUArchState *env, target_ulong addr, uint64_t val, goto do_unaligned_access; } - iotlbentry = &env_tlb(env)->d[mmu_idx].iotlb[index]; + full = &env_tlb(env)->d[mmu_idx].fulltlb[index]; /* Handle watchpoints. */ if (unlikely(tlb_addr & TLB_WATCHPOINT)) { /* On watchpoint hit, this will longjmp out. */ cpu_check_watchpoint(env_cpu(env), addr, size, - iotlbentry->attrs, BP_MEM_WRITE, retaddr); + full->attrs, BP_MEM_WRITE, retaddr); } need_swap = size > 1 && (tlb_addr & TLB_BSWAP); /* Handle I/O access. */ if (tlb_addr & TLB_MMIO) { - io_writex(env, iotlbentry, mmu_idx, val, addr, retaddr, + io_writex(env, full, mmu_idx, val, addr, retaddr, op ^ (need_swap * MO_BSWAP)); return; } @@ -XXX,XX +XXX,XX @@ store_helper(CPUArchState *env, target_ulong addr, uint64_t val, /* Handle clean RAM pages. */ if (tlb_addr & TLB_NOTDIRTY) { - notdirty_write(env_cpu(env), addr, size, iotlbentry, retaddr); + notdirty_write(env_cpu(env), addr, size, full, retaddr); } haddr = (void *)((uintptr_t)addr + entry->addend); diff --git a/target/arm/mte_helper.c b/target/arm/mte_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/mte_helper.c +++ b/target/arm/mte_helper.c @@ -XXX,XX +XXX,XX @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, return tags + index; #else uintptr_t index; - CPUIOTLBEntry *iotlbentry; + CPUTLBEntryFull *full; int in_page, flags; ram_addr_t ptr_ra; hwaddr ptr_paddr, tag_paddr, xlat; @@ -XXX,XX +XXX,XX @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, assert(!(flags & TLB_INVALID_MASK)); /* - * Find the iotlbentry for ptr. This *must* be present in the TLB + * Find the CPUTLBEntryFull for ptr. This *must* be present in the TLB * because we just found the mapping. * TODO: Perhaps there should be a cputlb helper that returns a * matching tlb entry + iotlb entry. @@ -XXX,XX +XXX,XX @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, g_assert(tlb_hit(comparator, ptr)); } # endif - iotlbentry = &env_tlb(env)->d[ptr_mmu_idx].iotlb[index]; + full = &env_tlb(env)->d[ptr_mmu_idx].fulltlb[index]; /* If the virtual page MemAttr != Tagged, access unchecked. */ - if (!arm_tlb_mte_tagged(&iotlbentry->attrs)) { + if (!arm_tlb_mte_tagged(&full->attrs)) { return NULL; } @@ -XXX,XX +XXX,XX @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, int wp = ptr_access == MMU_DATA_LOAD ? BP_MEM_READ : BP_MEM_WRITE; assert(ra != 0); cpu_check_watchpoint(env_cpu(env), ptr, ptr_size, - iotlbentry->attrs, wp, ra); + full->attrs, wp, ra); } /* @@ -XXX,XX +XXX,XX @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, tag_paddr = ptr_paddr >> (LOG2_TAG_GRANULE + 1); /* Look up the address in tag space. */ - tag_asi = iotlbentry->attrs.secure ? ARMASIdx_TagS : ARMASIdx_TagNS; + tag_asi = full->attrs.secure ? ARMASIdx_TagS : ARMASIdx_TagNS; tag_as = cpu_get_address_space(env_cpu(env), tag_asi); mr = address_space_translate(tag_as, tag_paddr, &xlat, NULL, tag_access == MMU_DATA_STORE, - iotlbentry->attrs); + full->attrs); /* * Note that @mr will never be NULL. If there is nothing in the address diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/sve_helper.c +++ b/target/arm/sve_helper.c @@ -XXX,XX +XXX,XX @@ bool sve_probe_page(SVEHostPage *info, bool nofault, CPUARMState *env, g_assert(tlb_hit(comparator, addr)); # endif - CPUIOTLBEntry *iotlbentry = &env_tlb(env)->d[mmu_idx].iotlb[index]; - info->attrs = iotlbentry->attrs; + CPUTLBEntryFull *full = &env_tlb(env)->d[mmu_idx].fulltlb[index]; + info->attrs = full->attrs; } #endif diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -XXX,XX +XXX,XX @@ static bool is_guarded_page(CPUARMState *env, DisasContext *s) * table entry even for that case. */ return (tlb_hit(entry->addr_code, addr) && - arm_tlb_bti_gp(&env_tlb(env)->d[mmu_idx].iotlb[index].attrs)); + arm_tlb_bti_gp(&env_tlb(env)->d[mmu_idx].fulltlb[index].attrs)); #endif } -- 2.34.1 This field is only written, not read; remove it. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/hw/core/cpu.h | 1 - accel/tcg/cputlb.c | 7 +++---- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -XXX,XX +XXX,XX @@ struct CPUWatchpoint { * the memory regions get moved around by io_writex. */ typedef struct SavedIOTLB { - hwaddr addr; MemoryRegionSection *section; hwaddr mr_offset; } SavedIOTLB; diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ static uint64_t io_readx(CPUArchState *env, CPUTLBEntryFull *full, * This is read by tlb_plugin_lookup if the fulltlb entry doesn't match * because of the side effect of io_writex changing memory layout. */ -static void save_iotlb_data(CPUState *cs, hwaddr addr, - MemoryRegionSection *section, hwaddr mr_offset) +static void save_iotlb_data(CPUState *cs, MemoryRegionSection *section, + hwaddr mr_offset) { #ifdef CONFIG_PLUGIN SavedIOTLB *saved = &cs->saved_iotlb; - saved->addr = addr; saved->section = section; saved->mr_offset = mr_offset; #endif @@ -XXX,XX +XXX,XX @@ static void io_writex(CPUArchState *env, CPUTLBEntryFull *full, * The memory_region_dispatch may trigger a flush/resize * so for plugins we save the iotlb_data just in case. */ - save_iotlb_data(cpu, full->xlat_section, section, mr_offset); + save_iotlb_data(cpu, section, mr_offset); if (!qemu_mutex_iothread_locked()) { qemu_mutex_lock_iothread(); -- 2.34.1 When PAGE_WRITE_INV is set when calling tlb_set_page, we immediately set TLB_INVALID_MASK in order to force tlb_fill to be called on the next lookup. Here in probe_access_internal, we have just called tlb_fill and eliminated true misses, thus the lookup must be valid. This allows us to remove a warning comment from s390x. There doesn't seem to be a reason to change the code though. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/cputlb.c | 10 +++++++++- target/s390x/tcg/mem_helper.c | 4 ---- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ static int probe_access_internal(CPUArchState *env, target_ulong addr, } tlb_addr = tlb_read_ofs(entry, elt_ofs); + flags = TLB_FLAGS_MASK; page_addr = addr & TARGET_PAGE_MASK; if (!tlb_hit_page(tlb_addr, page_addr)) { if (!victim_tlb_hit(env, mmu_idx, index, elt_ofs, page_addr)) { @@ -XXX,XX +XXX,XX @@ static int probe_access_internal(CPUArchState *env, target_ulong addr, /* TLB resize via tlb_fill may have moved the entry. */ entry = tlb_entry(env, mmu_idx, addr); + + /* + * With PAGE_WRITE_INV, we set TLB_INVALID_MASK immediately, + * to force the next access through tlb_fill. We've just + * called tlb_fill, so we know that this entry *is* valid. + */ + flags &= ~TLB_INVALID_MASK; } tlb_addr = tlb_read_ofs(entry, elt_ofs); } - flags = tlb_addr & TLB_FLAGS_MASK; + flags &= tlb_addr; /* Fold all "mmio-like" bits into TLB_MMIO. This is not RAM. */ if (unlikely(flags & ~(TLB_WATCHPOINT | TLB_NOTDIRTY))) { diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/s390x/tcg/mem_helper.c +++ b/target/s390x/tcg/mem_helper.c @@ -XXX,XX +XXX,XX @@ static int s390_probe_access(CPUArchState *env, target_ulong addr, int size, #else int flags; - /* - * For !CONFIG_USER_ONLY, we cannot rely on TLB_INVALID_MASK or haddr==NULL - * to detect if there was an exception during tlb_fill(). - */ env->tlb_fill_exc = 0; flags = probe_access_flags(env, addr, access_type, mmu_idx, nonfault, phost, ra); -- 2.34.1 Add an interface to return the CPUTLBEntryFull struct that goes with the lookup. The result is not intended to be valid across multiple lookups, so the user must use the results immediately. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/exec-all.h | 15 +++++++++++++ include/qemu/typedefs.h | 1 + accel/tcg/cputlb.c | 47 +++++++++++++++++++++++++---------------- 3 files changed, 45 insertions(+), 18 deletions(-) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ int probe_access_flags(CPUArchState *env, target_ulong addr, MMUAccessType access_type, int mmu_idx, bool nonfault, void **phost, uintptr_t retaddr); +#ifndef CONFIG_USER_ONLY +/** + * probe_access_full: + * Like probe_access_flags, except also return into @pfull. + * + * The CPUTLBEntryFull structure returned via @pfull is transient + * and must be consumed or copied immediately, before any further + * access or changes to TLB @mmu_idx. + */ +int probe_access_full(CPUArchState *env, target_ulong addr, + MMUAccessType access_type, int mmu_idx, + bool nonfault, void **phost, + CPUTLBEntryFull **pfull, uintptr_t retaddr); +#endif + #define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */ /* Estimated block size for TB allocation. */ diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h index XXXXXXX..XXXXXXX 100644 --- a/include/qemu/typedefs.h +++ b/include/qemu/typedefs.h @@ -XXX,XX +XXX,XX @@ typedef struct ConfidentialGuestSupport ConfidentialGuestSupport; typedef struct CPUAddressSpace CPUAddressSpace; typedef struct CPUArchState CPUArchState; typedef struct CPUState CPUState; +typedef struct CPUTLBEntryFull CPUTLBEntryFull; typedef struct DeviceListener DeviceListener; typedef struct DeviceState DeviceState; typedef struct DirtyBitmapSnapshot DirtyBitmapSnapshot; diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ static void notdirty_write(CPUState *cpu, vaddr mem_vaddr, unsigned size, static int probe_access_internal(CPUArchState *env, target_ulong addr, int fault_size, MMUAccessType access_type, int mmu_idx, bool nonfault, - void **phost, uintptr_t retaddr) + void **phost, CPUTLBEntryFull **pfull, + uintptr_t retaddr) { uintptr_t index = tlb_index(env, mmu_idx, addr); CPUTLBEntry *entry = tlb_entry(env, mmu_idx, addr); @@ -XXX,XX +XXX,XX @@ static int probe_access_internal(CPUArchState *env, target_ulong addr, mmu_idx, nonfault, retaddr)) { /* Non-faulting page table read failed. */ *phost = NULL; + *pfull = NULL; return TLB_INVALID_MASK; } /* TLB resize via tlb_fill may have moved the entry. */ + index = tlb_index(env, mmu_idx, addr); entry = tlb_entry(env, mmu_idx, addr); /* @@ -XXX,XX +XXX,XX @@ static int probe_access_internal(CPUArchState *env, target_ulong addr, } flags &= tlb_addr; + *pfull = &env_tlb(env)->d[mmu_idx].fulltlb[index]; + /* Fold all "mmio-like" bits into TLB_MMIO. This is not RAM. */ if (unlikely(flags & ~(TLB_WATCHPOINT | TLB_NOTDIRTY))) { *phost = NULL; @@ -XXX,XX +XXX,XX @@ static int probe_access_internal(CPUArchState *env, target_ulong addr, return flags; } -int probe_access_flags(CPUArchState *env, target_ulong addr, - MMUAccessType access_type, int mmu_idx, - bool nonfault, void **phost, uintptr_t retaddr) +int probe_access_full(CPUArchState *env, target_ulong addr, + MMUAccessType access_type, int mmu_idx, + bool nonfault, void **phost, CPUTLBEntryFull **pfull, + uintptr_t retaddr) { - int flags; - - flags = probe_access_internal(env, addr, 0, access_type, mmu_idx, - nonfault, phost, retaddr); + int flags = probe_access_internal(env, addr, 0, access_type, mmu_idx, + nonfault, phost, pfull, retaddr); /* Handle clean RAM pages. */ if (unlikely(flags & TLB_NOTDIRTY)) { - uintptr_t index = tlb_index(env, mmu_idx, addr); - CPUTLBEntryFull *full = &env_tlb(env)->d[mmu_idx].fulltlb[index]; - - notdirty_write(env_cpu(env), addr, 1, full, retaddr); + notdirty_write(env_cpu(env), addr, 1, *pfull, retaddr); flags &= ~TLB_NOTDIRTY; } return flags; } +int probe_access_flags(CPUArchState *env, target_ulong addr, + MMUAccessType access_type, int mmu_idx, + bool nonfault, void **phost, uintptr_t retaddr) +{ + CPUTLBEntryFull *full; + + return probe_access_full(env, addr, access_type, mmu_idx, + nonfault, phost, &full, retaddr); +} + void *probe_access(CPUArchState *env, target_ulong addr, int size, MMUAccessType access_type, int mmu_idx, uintptr_t retaddr) { + CPUTLBEntryFull *full; void *host; int flags; g_assert(-(addr | TARGET_PAGE_MASK) >= size); flags = probe_access_internal(env, addr, size, access_type, mmu_idx, - false, &host, retaddr); + false, &host, &full, retaddr); /* Per the interface, size == 0 merely faults the access. */ if (size == 0) { @@ -XXX,XX +XXX,XX @@ void *probe_access(CPUArchState *env, target_ulong addr, int size, } if (unlikely(flags & (TLB_NOTDIRTY | TLB_WATCHPOINT))) { - uintptr_t index = tlb_index(env, mmu_idx, addr); - CPUTLBEntryFull *full = &env_tlb(env)->d[mmu_idx].fulltlb[index]; - /* Handle watchpoints. */ if (flags & TLB_WATCHPOINT) { int wp_access = (access_type == MMU_DATA_STORE @@ -XXX,XX +XXX,XX @@ void *probe_access(CPUArchState *env, target_ulong addr, int size, void *tlb_vaddr_to_host(CPUArchState *env, abi_ptr addr, MMUAccessType access_type, int mmu_idx) { + CPUTLBEntryFull *full; void *host; int flags; flags = probe_access_internal(env, addr, 0, access_type, - mmu_idx, true, &host, 0); + mmu_idx, true, &host, &full, 0); /* No combination of flags are expected by the caller. */ return flags ? NULL : host; @@ -XXX,XX +XXX,XX @@ void *tlb_vaddr_to_host(CPUArchState *env, abi_ptr addr, tb_page_addr_t get_page_addr_code_hostp(CPUArchState *env, target_ulong addr, void **hostp) { + CPUTLBEntryFull *full; void *p; (void)probe_access_internal(env, addr, 1, MMU_INST_FETCH, - cpu_mmu_index(env, true), false, &p, 0); + cpu_mmu_index(env, true), false, &p, &full, 0); if (p == NULL) { return -1; } -- 2.34.1 Now that we have collected all of the page data into CPUTLBEntryFull, provide an interface to record that all in one go, instead of using 4 arguments. This interface allows CPUTLBEntryFull to be extended without having to change the number of arguments. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/cpu-defs.h | 14 +++++++++++ include/exec/exec-all.h | 22 ++++++++++++++++++ accel/tcg/cputlb.c | 51 ++++++++++++++++++++++++++--------------- 3 files changed, 69 insertions(+), 18 deletions(-) diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/cpu-defs.h +++ b/include/exec/cpu-defs.h @@ -XXX,XX +XXX,XX @@ typedef struct CPUTLBEntryFull { * + the offset within the target MemoryRegion (otherwise) */ hwaddr xlat_section; + + /* + * @phys_addr contains the physical address in the address space + * given by cpu_asidx_from_attrs(cpu, @attrs). + */ + hwaddr phys_addr; + + /* @attrs contains the memory transaction attributes for the page. */ MemTxAttrs attrs; + + /* @prot contains the complete protections for the page. */ + uint8_t prot; + + /* @lg_page_size contains the log2 of the page size. */ + uint8_t lg_page_size; } CPUTLBEntryFull; /* diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ void tlb_flush_range_by_mmuidx_all_cpus_synced(CPUState *cpu, uint16_t idxmap, unsigned bits); +/** + * tlb_set_page_full: + * @cpu: CPU context + * @mmu_idx: mmu index of the tlb to modify + * @vaddr: virtual address of the entry to add + * @full: the details of the tlb entry + * + * Add an entry to @cpu tlb index @mmu_idx. All of the fields of + * @full must be filled, except for xlat_section, and constitute + * the complete description of the translated page. + * + * This is generally called by the target tlb_fill function after + * having performed a successful page table walk to find the physical + * address and attributes for the translation. + * + * At most one entry for a given virtual address is permitted. Only a + * single TARGET_PAGE_SIZE region is mapped; @full->lg_page_size is only + * used by tlb_flush_page. + */ +void tlb_set_page_full(CPUState *cpu, int mmu_idx, target_ulong vaddr, + CPUTLBEntryFull *full); + /** * tlb_set_page_with_attrs: * @cpu: CPU to add this TLB entry for diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ static void tlb_add_large_page(CPUArchState *env, int mmu_idx, env_tlb(env)->d[mmu_idx].large_page_mask = lp_mask; } -/* Add a new TLB entry. At most one entry for a given virtual address +/* + * Add a new TLB entry. At most one entry for a given virtual address * is permitted. Only a single TARGET_PAGE_SIZE region is mapped, the * supplied size is only used by tlb_flush_page. * * Called from TCG-generated code, which is under an RCU read-side * critical section. */ -void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr, - hwaddr paddr, MemTxAttrs attrs, int prot, - int mmu_idx, target_ulong size) +void tlb_set_page_full(CPUState *cpu, int mmu_idx, + target_ulong vaddr, CPUTLBEntryFull *full) { CPUArchState *env = cpu->env_ptr; CPUTLB *tlb = env_tlb(env); @@ -XXX,XX +XXX,XX @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr, CPUTLBEntry *te, tn; hwaddr iotlb, xlat, sz, paddr_page; target_ulong vaddr_page; - int asidx = cpu_asidx_from_attrs(cpu, attrs); - int wp_flags; + int asidx, wp_flags, prot; bool is_ram, is_romd; assert_cpu_is_self(cpu); - if (size <= TARGET_PAGE_SIZE) { + if (full->lg_page_size <= TARGET_PAGE_BITS) { sz = TARGET_PAGE_SIZE; } else { - tlb_add_large_page(env, mmu_idx, vaddr, size); - sz = size; + sz = (hwaddr)1 << full->lg_page_size; + tlb_add_large_page(env, mmu_idx, vaddr, sz); } vaddr_page = vaddr & TARGET_PAGE_MASK; - paddr_page = paddr & TARGET_PAGE_MASK; + paddr_page = full->phys_addr & TARGET_PAGE_MASK; + prot = full->prot; + asidx = cpu_asidx_from_attrs(cpu, full->attrs); section = address_space_translate_for_iotlb(cpu, asidx, paddr_page, - &xlat, &sz, attrs, &prot); + &xlat, &sz, full->attrs, &prot); assert(sz >= TARGET_PAGE_SIZE); tlb_debug("vaddr=" TARGET_FMT_lx " paddr=0x" TARGET_FMT_plx " prot=%x idx=%d\n", - vaddr, paddr, prot, mmu_idx); + vaddr, full->phys_addr, prot, mmu_idx); address = vaddr_page; - if (size < TARGET_PAGE_SIZE) { + if (full->lg_page_size < TARGET_PAGE_BITS) { /* Repeat the MMU check and TLB fill on every access. */ address |= TLB_INVALID_MASK; } - if (attrs.byte_swap) { + if (full->attrs.byte_swap) { address |= TLB_BSWAP; } @@ -XXX,XX +XXX,XX @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr, * subtract here is that of the page base, and not the same as the * vaddr we add back in io_readx()/io_writex()/get_page_addr_code(). */ + desc->fulltlb[index] = *full; desc->fulltlb[index].xlat_section = iotlb - vaddr_page; - desc->fulltlb[index].attrs = attrs; + desc->fulltlb[index].phys_addr = paddr_page; + desc->fulltlb[index].prot = prot; /* Now calculate the new entry */ tn.addend = addend - vaddr_page; @@ -XXX,XX +XXX,XX @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr, qemu_spin_unlock(&tlb->c.lock); } -/* Add a new TLB entry, but without specifying the memory - * transaction attributes to be used. - */ +void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr, + hwaddr paddr, MemTxAttrs attrs, int prot, + int mmu_idx, target_ulong size) +{ + CPUTLBEntryFull full = { + .phys_addr = paddr, + .attrs = attrs, + .prot = prot, + .lg_page_size = ctz64(size) + }; + + assert(is_power_of_2(size)); + tlb_set_page_full(cpu, mmu_idx, vaddr, &full); +} + void tlb_set_page(CPUState *cpu, target_ulong vaddr, hwaddr paddr, int prot, int mmu_idx, target_ulong size) -- 2.34.1 Allow the target to cache items from the guest page tables. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/cpu-defs.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/cpu-defs.h +++ b/include/exec/cpu-defs.h @@ -XXX,XX +XXX,XX @@ typedef struct CPUTLBEntryFull { /* @lg_page_size contains the log2 of the page size. */ uint8_t lg_page_size; + + /* + * Allow target-specific additions to this structure. + * This may be used to cache items from the guest cpu + * page tables for later use by the implementation. + */ +#ifdef TARGET_PAGE_ENTRY_EXTRA + TARGET_PAGE_ENTRY_EXTRA +#endif } CPUTLBEntryFull; /* -- 2.34.1 This bitmap is created and discarded immediately. We gain nothing by its existence. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220822232338.1727934-2-richard.henderson@linaro.org> --- accel/tcg/translate-all.c | 78 ++------------------------------------- 1 file changed, 4 insertions(+), 74 deletions(-) diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ #define assert_memory_lock() tcg_debug_assert(have_mmap_lock()) #endif -#define SMC_BITMAP_USE_THRESHOLD 10 - typedef struct PageDesc { /* list of TBs intersecting this ram page */ uintptr_t first_tb; -#ifdef CONFIG_SOFTMMU - /* in order to optimize self modifying code, we count the number - of lookups we do to a given page to use a bitmap */ - unsigned long *code_bitmap; - unsigned int code_write_count; -#else +#ifdef CONFIG_USER_ONLY unsigned long flags; void *target_data; #endif -#ifndef CONFIG_USER_ONLY +#ifdef CONFIG_SOFTMMU QemuSpin lock; #endif } PageDesc; @@ -XXX,XX +XXX,XX @@ void tb_htable_init(void) qht_init(&tb_ctx.htable, tb_cmp, CODE_GEN_HTABLE_SIZE, mode); } -/* call with @p->lock held */ -static inline void invalidate_page_bitmap(PageDesc *p) -{ - assert_page_locked(p); -#ifdef CONFIG_SOFTMMU - g_free(p->code_bitmap); - p->code_bitmap = NULL; - p->code_write_count = 0; -#endif -} - /* Set to NULL all the 'first_tb' fields in all PageDescs. */ static void page_flush_tb_1(int level, void **lp) { @@ -XXX,XX +XXX,XX @@ static void page_flush_tb_1(int level, void **lp) for (i = 0; i < V_L2_SIZE; ++i) { page_lock(&pd[i]); pd[i].first_tb = (uintptr_t)NULL; - invalidate_page_bitmap(pd + i); page_unlock(&pd[i]); } } else { @@ -XXX,XX +XXX,XX @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list) if (rm_from_page_list) { p = page_find(tb->page_addr[0] >> TARGET_PAGE_BITS); tb_page_remove(p, tb); - invalidate_page_bitmap(p); if (tb->page_addr[1] != -1) { p = page_find(tb->page_addr[1] >> TARGET_PAGE_BITS); tb_page_remove(p, tb); - invalidate_page_bitmap(p); } } @@ -XXX,XX +XXX,XX @@ void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr) } } -#ifdef CONFIG_SOFTMMU -/* call with @p->lock held */ -static void build_page_bitmap(PageDesc *p) -{ - int n, tb_start, tb_end; - TranslationBlock *tb; - - assert_page_locked(p); - p->code_bitmap = bitmap_new(TARGET_PAGE_SIZE); - - PAGE_FOR_EACH_TB(p, tb, n) { - /* NOTE: this is subtle as a TB may span two physical pages */ - if (n == 0) { - /* NOTE: tb_end may be after the end of the page, but - it is not a problem */ - tb_start = tb->pc & ~TARGET_PAGE_MASK; - tb_end = tb_start + tb->size; - if (tb_end > TARGET_PAGE_SIZE) { - tb_end = TARGET_PAGE_SIZE; - } - } else { - tb_start = 0; - tb_end = ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); - } - bitmap_set(p->code_bitmap, tb_start, tb_end - tb_start); - } -} -#endif - /* add the tb in the target page and protect it if necessary * * Called with mmap_lock held for user-mode emulation. @@ -XXX,XX +XXX,XX @@ static inline void tb_page_add(PageDesc *p, TranslationBlock *tb, page_already_protected = p->first_tb != (uintptr_t)NULL; #endif p->first_tb = (uintptr_t)tb | n; - invalidate_page_bitmap(p); #if defined(CONFIG_USER_ONLY) /* translator_loop() must have made all TB pages non-writable */ @@ -XXX,XX +XXX,XX @@ tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, /* remove TB from the page(s) if we couldn't insert it */ if (unlikely(existing_tb)) { tb_page_remove(p, tb); - invalidate_page_bitmap(p); if (p2) { tb_page_remove(p2, tb); - invalidate_page_bitmap(p2); } tb = existing_tb; } @@ -XXX,XX +XXX,XX @@ tb_invalidate_phys_page_range__locked(struct page_collection *pages, #if !defined(CONFIG_USER_ONLY) /* if no code remaining, no need to continue to use slow writes */ if (!p->first_tb) { - invalidate_page_bitmap(p); tlb_unprotect_code(start); } #endif @@ -XXX,XX +XXX,XX @@ void tb_invalidate_phys_page_fast(struct page_collection *pages, } assert_page_locked(p); - if (!p->code_bitmap && - ++p->code_write_count >= SMC_BITMAP_USE_THRESHOLD) { - build_page_bitmap(p); - } - if (p->code_bitmap) { - unsigned int nr; - unsigned long b; - - nr = start & ~TARGET_PAGE_MASK; - b = p->code_bitmap[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG - 1)); - if (b & ((1 << len) - 1)) { - goto do_invalidate; - } - } else { - do_invalidate: - tb_invalidate_phys_page_range__locked(pages, p, start, start + len, - retaddr); - } + tb_invalidate_phys_page_range__locked(pages, p, start, start + len, + retaddr); } #else /* Called with mmap_lock held. If pc is not 0 then it indicates the -- 2.34.1 Bool is more appropriate type for the alloc parameter. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/translate-all.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ void page_init(void) #endif } -static PageDesc *page_find_alloc(tb_page_addr_t index, int alloc) +static PageDesc *page_find_alloc(tb_page_addr_t index, bool alloc) { PageDesc *pd; void **lp; @@ -XXX,XX +XXX,XX @@ static PageDesc *page_find_alloc(tb_page_addr_t index, int alloc) static inline PageDesc *page_find(tb_page_addr_t index) { - return page_find_alloc(index, 0); + return page_find_alloc(index, false); } static void page_lock_pair(PageDesc **ret_p1, tb_page_addr_t phys1, - PageDesc **ret_p2, tb_page_addr_t phys2, int alloc); + PageDesc **ret_p2, tb_page_addr_t phys2, bool alloc); /* In user-mode page locks aren't used; mmap_lock is enough */ #ifdef CONFIG_USER_ONLY @@ -XXX,XX +XXX,XX @@ static inline void page_unlock(PageDesc *pd) /* lock the page(s) of a TB in the correct acquisition order */ static inline void page_lock_tb(const TranslationBlock *tb) { - page_lock_pair(NULL, tb->page_addr[0], NULL, tb->page_addr[1], 0); + page_lock_pair(NULL, tb->page_addr[0], NULL, tb->page_addr[1], false); } static inline void page_unlock_tb(const TranslationBlock *tb) @@ -XXX,XX +XXX,XX @@ void page_collection_unlock(struct page_collection *set) #endif /* !CONFIG_USER_ONLY */ static void page_lock_pair(PageDesc **ret_p1, tb_page_addr_t phys1, - PageDesc **ret_p2, tb_page_addr_t phys2, int alloc) + PageDesc **ret_p2, tb_page_addr_t phys2, bool alloc) { PageDesc *p1, *p2; tb_page_addr_t page1; @@ -XXX,XX +XXX,XX @@ tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, * Note that inserting into the hash table first isn't an option, since * we can only insert TBs that are fully initialized. */ - page_lock_pair(&p, phys_pc, &p2, phys_page2, 1); + page_lock_pair(&p, phys_pc, &p2, phys_page2, true); tb_page_add(p, tb, 0, phys_pc & TARGET_PAGE_MASK); if (p2) { tb_page_add(p2, tb, 1, phys_page2); @@ -XXX,XX +XXX,XX @@ void page_set_flags(target_ulong start, target_ulong end, int flags) for (addr = start, len = end - start; len != 0; len -= TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) { - PageDesc *p = page_find_alloc(addr >> TARGET_PAGE_BITS, 1); + PageDesc *p = page_find_alloc(addr >> TARGET_PAGE_BITS, true); /* If the write protection bit is set, then we invalidate the code inside. */ -- 2.34.1 Use the pc coming from db->pc_first rather than the TB. Use the cached host_addr rather than re-computing for the first page. We still need a separate lookup for the second page because it won't be computed for DisasContextBase until the translator actually performs a read from the page. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/plugin-gen.h | 7 ++++--- accel/tcg/plugin-gen.c | 22 +++++++++++----------- accel/tcg/translator.c | 2 +- 3 files changed, 16 insertions(+), 15 deletions(-) diff --git a/include/exec/plugin-gen.h b/include/exec/plugin-gen.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/plugin-gen.h +++ b/include/exec/plugin-gen.h @@ -XXX,XX +XXX,XX @@ struct DisasContextBase; #ifdef CONFIG_PLUGIN -bool plugin_gen_tb_start(CPUState *cpu, const TranslationBlock *tb, bool supress); +bool plugin_gen_tb_start(CPUState *cpu, const struct DisasContextBase *db, + bool supress); void plugin_gen_tb_end(CPUState *cpu); void plugin_gen_insn_start(CPUState *cpu, const struct DisasContextBase *db); void plugin_gen_insn_end(void); @@ -XXX,XX +XXX,XX @@ static inline void plugin_insn_append(abi_ptr pc, const void *from, size_t size) #else /* !CONFIG_PLUGIN */ -static inline -bool plugin_gen_tb_start(CPUState *cpu, const TranslationBlock *tb, bool supress) +static inline bool +plugin_gen_tb_start(CPUState *cpu, const struct DisasContextBase *db, bool sup) { return false; } diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/plugin-gen.c +++ b/accel/tcg/plugin-gen.c @@ -XXX,XX +XXX,XX @@ static void plugin_gen_inject(const struct qemu_plugin_tb *plugin_tb) pr_ops(); } -bool plugin_gen_tb_start(CPUState *cpu, const TranslationBlock *tb, bool mem_only) +bool plugin_gen_tb_start(CPUState *cpu, const DisasContextBase *db, + bool mem_only) { bool ret = false; @@ -XXX,XX +XXX,XX @@ bool plugin_gen_tb_start(CPUState *cpu, const TranslationBlock *tb, bool mem_onl ret = true; - ptb->vaddr = tb->pc; + ptb->vaddr = db->pc_first; ptb->vaddr2 = -1; - get_page_addr_code_hostp(cpu->env_ptr, tb->pc, &ptb->haddr1); + ptb->haddr1 = db->host_addr[0]; ptb->haddr2 = NULL; ptb->mem_only = mem_only; @@ -XXX,XX +XXX,XX @@ void plugin_gen_insn_start(CPUState *cpu, const DisasContextBase *db) * Note that we skip this when haddr1 == NULL, e.g. when we're * fetching instructions from a region not backed by RAM. */ - if (likely(ptb->haddr1 != NULL && ptb->vaddr2 == -1) && - unlikely((db->pc_next & TARGET_PAGE_MASK) != - (db->pc_first & TARGET_PAGE_MASK))) { - get_page_addr_code_hostp(cpu->env_ptr, db->pc_next, - &ptb->haddr2); - ptb->vaddr2 = db->pc_next; - } - if (likely(ptb->vaddr2 == -1)) { + if (ptb->haddr1 == NULL) { + pinsn->haddr = NULL; + } else if (is_same_page(db, db->pc_next)) { pinsn->haddr = ptb->haddr1 + pinsn->vaddr - ptb->vaddr; } else { + if (ptb->vaddr2 == -1) { + ptb->vaddr2 = TARGET_PAGE_ALIGN(db->pc_first); + get_page_addr_code_hostp(cpu->env_ptr, ptb->vaddr2, &ptb->haddr2); + } pinsn->haddr = ptb->haddr2 + pinsn->vaddr - ptb->vaddr2; } } diff --git a/accel/tcg/translator.c b/accel/tcg/translator.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translator.c +++ b/accel/tcg/translator.c @@ -XXX,XX +XXX,XX @@ void translator_loop(CPUState *cpu, TranslationBlock *tb, int max_insns, ops->tb_start(db, cpu); tcg_debug_assert(db->is_jmp == DISAS_NEXT); /* no early exit */ - plugin_enabled = plugin_gen_tb_start(cpu, tb, cflags & CF_MEMI_ONLY); + plugin_enabled = plugin_gen_tb_start(cpu, db, cflags & CF_MEMI_ONLY); while (true) { db->num_insns++; -- 2.34.1 Let tb->page_addr[0] contain the address of the first byte of the translated block, rather than the address of the page containing the start of the translated block. We need to recover this value anyway at various points, and it is easier to discard a page offset when it is not needed, which happens naturally via the existing find_page shift. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/cpu-exec.c | 16 ++++++++-------- accel/tcg/cputlb.c | 3 ++- accel/tcg/translate-all.c | 9 +++++---- 3 files changed, 15 insertions(+), 13 deletions(-) diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -XXX,XX +XXX,XX @@ struct tb_desc { target_ulong pc; target_ulong cs_base; CPUArchState *env; - tb_page_addr_t phys_page1; + tb_page_addr_t page_addr0; uint32_t flags; uint32_t cflags; uint32_t trace_vcpu_dstate; @@ -XXX,XX +XXX,XX @@ static bool tb_lookup_cmp(const void *p, const void *d) const struct tb_desc *desc = d; if (tb->pc == desc->pc && - tb->page_addr[0] == desc->phys_page1 && + tb->page_addr[0] == desc->page_addr0 && tb->cs_base == desc->cs_base && tb->flags == desc->flags && tb->trace_vcpu_dstate == desc->trace_vcpu_dstate && @@ -XXX,XX +XXX,XX @@ static bool tb_lookup_cmp(const void *p, const void *d) if (tb->page_addr[1] == -1) { return true; } else { - tb_page_addr_t phys_page2; - target_ulong virt_page2; + tb_page_addr_t phys_page1; + target_ulong virt_page1; /* * We know that the first page matched, and an otherwise valid TB @@ -XXX,XX +XXX,XX @@ static bool tb_lookup_cmp(const void *p, const void *d) * is different for the new TB. Therefore any exception raised * here by the faulting lookup is not premature. */ - virt_page2 = TARGET_PAGE_ALIGN(desc->pc); - phys_page2 = get_page_addr_code(desc->env, virt_page2); - if (tb->page_addr[1] == phys_page2) { + virt_page1 = TARGET_PAGE_ALIGN(desc->pc); + phys_page1 = get_page_addr_code(desc->env, virt_page1); + if (tb->page_addr[1] == phys_page1) { return true; } } @@ -XXX,XX +XXX,XX @@ static TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc, if (phys_pc == -1) { return NULL; } - desc.phys_page1 = phys_pc & TARGET_PAGE_MASK; + desc.page_addr0 = phys_pc; h = tb_hash_func(phys_pc, pc, flags, cflags, *cpu->trace_dstate); return qht_lookup_custom(&tb_ctx.htable, &desc, h, tb_lookup_cmp); } diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ void tlb_flush_page_bits_by_mmuidx_all_cpus_synced(CPUState *src_cpu, can be detected */ void tlb_protect_code(ram_addr_t ram_addr) { - cpu_physical_memory_test_and_clear_dirty(ram_addr, TARGET_PAGE_SIZE, + cpu_physical_memory_test_and_clear_dirty(ram_addr & TARGET_PAGE_MASK, + TARGET_PAGE_SIZE, DIRTY_MEMORY_CODE); } diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list) qemu_spin_unlock(&tb->jmp_lock); /* remove the TB from the hash list */ - phys_pc = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); + phys_pc = tb->page_addr[0]; h = tb_hash_func(phys_pc, tb->pc, tb->flags, orig_cflags, tb->trace_vcpu_dstate); if (!qht_remove(&tb_ctx.htable, tb, h)) { @@ -XXX,XX +XXX,XX @@ tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, * we can only insert TBs that are fully initialized. */ page_lock_pair(&p, phys_pc, &p2, phys_page2, true); - tb_page_add(p, tb, 0, phys_pc & TARGET_PAGE_MASK); + tb_page_add(p, tb, 0, phys_pc); if (p2) { tb_page_add(p2, tb, 1, phys_page2); } else { @@ -XXX,XX +XXX,XX @@ tb_invalidate_phys_page_range__locked(struct page_collection *pages, if (n == 0) { /* NOTE: tb_end may be after the end of the page, but it is not a problem */ - tb_start = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); + tb_start = tb->page_addr[0]; tb_end = tb_start + tb->size; } else { tb_start = tb->page_addr[1]; - tb_end = tb_start + ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); + tb_end = tb_start + ((tb->page_addr[0] + tb->size) + & ~TARGET_PAGE_MASK); } if (!(tb_end <= start || tb_start >= end)) { #ifdef TARGET_HAS_PRECISE_SMC -- 2.34.1 This function has two users, who use it incompatibly. In tlb_flush_page_by_mmuidx_async_0, when flushing a single page, we need to flush exactly two pages. In tlb_flush_range_by_mmuidx_async_0, when flushing a range of pages, we need to flush N+1 pages. This avoids double-flushing of jmp cache pages in a range. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/cputlb.c | 25 ++++++++++++++----------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ static void tb_jmp_cache_clear_page(CPUState *cpu, target_ulong page_addr) } } -static void tb_flush_jmp_cache(CPUState *cpu, target_ulong addr) -{ - /* Discard jump cache entries for any tb which might potentially - overlap the flushed page. */ - tb_jmp_cache_clear_page(cpu, addr - TARGET_PAGE_SIZE); - tb_jmp_cache_clear_page(cpu, addr); -} - /** * tlb_mmu_resize_locked() - perform TLB resize bookkeeping; resize if necessary * @desc: The CPUTLBDesc portion of the TLB @@ -XXX,XX +XXX,XX @@ static void tlb_flush_page_by_mmuidx_async_0(CPUState *cpu, } qemu_spin_unlock(&env_tlb(env)->c.lock); - tb_flush_jmp_cache(cpu, addr); + /* + * Discard jump cache entries for any tb which might potentially + * overlap the flushed page, which includes the previous. + */ + tb_jmp_cache_clear_page(cpu, addr - TARGET_PAGE_SIZE); + tb_jmp_cache_clear_page(cpu, addr); } /** @@ -XXX,XX +XXX,XX @@ static void tlb_flush_range_by_mmuidx_async_0(CPUState *cpu, return; } - for (target_ulong i = 0; i < d.len; i += TARGET_PAGE_SIZE) { - tb_flush_jmp_cache(cpu, d.addr + i); + /* + * Discard jump cache entries for any tb which might potentially + * overlap the flushed pages, which includes the previous. + */ + d.addr -= TARGET_PAGE_SIZE; + for (target_ulong i = 0, n = d.len / TARGET_PAGE_SIZE + 1; i < n; i++) { + tb_jmp_cache_clear_page(cpu, d.addr); + d.addr += TARGET_PAGE_SIZE; } } -- 2.34.1 Wrap the bare TranslationBlock pointer into a structure. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/tb-hash.h | 1 + accel/tcg/tb-jmp-cache.h | 24 ++++++++++++++++++++++++ include/exec/cpu-common.h | 1 + include/hw/core/cpu.h | 15 +-------------- include/qemu/typedefs.h | 1 + accel/stubs/tcg-stub.c | 4 ++++ accel/tcg/cpu-exec.c | 10 +++++++--- accel/tcg/cputlb.c | 9 +++++---- accel/tcg/translate-all.c | 28 +++++++++++++++++++++++++--- hw/core/cpu-common.c | 3 +-- plugins/core.c | 2 +- trace/control-target.c | 2 +- 12 files changed, 72 insertions(+), 28 deletions(-) create mode 100644 accel/tcg/tb-jmp-cache.h diff --git a/accel/tcg/tb-hash.h b/accel/tcg/tb-hash.h index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/tb-hash.h +++ b/accel/tcg/tb-hash.h @@ -XXX,XX +XXX,XX @@ #include "exec/cpu-defs.h" #include "exec/exec-all.h" #include "qemu/xxhash.h" +#include "tb-jmp-cache.h" #ifdef CONFIG_SOFTMMU diff --git a/accel/tcg/tb-jmp-cache.h b/accel/tcg/tb-jmp-cache.h new file mode 100644 index XXXXXXX..XXXXXXX --- /dev/null +++ b/accel/tcg/tb-jmp-cache.h @@ -XXX,XX +XXX,XX @@ +/* + * The per-CPU TranslationBlock jump cache. + * + * Copyright (c) 2003 Fabrice Bellard + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef ACCEL_TCG_TB_JMP_CACHE_H +#define ACCEL_TCG_TB_JMP_CACHE_H + +#define TB_JMP_CACHE_BITS 12 +#define TB_JMP_CACHE_SIZE (1 << TB_JMP_CACHE_BITS) + +/* + * Accessed in parallel; all accesses to 'tb' must be atomic. + */ +struct CPUJumpCache { + struct { + TranslationBlock *tb; + } array[TB_JMP_CACHE_SIZE]; +}; + +#endif /* ACCEL_TCG_TB_JMP_CACHE_H */ diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/cpu-common.h +++ b/include/exec/cpu-common.h @@ -XXX,XX +XXX,XX @@ void cpu_list_unlock(void); unsigned int cpu_list_generation_id_get(void); void tcg_flush_softmmu_tlb(CPUState *cs); +void tcg_flush_jmp_cache(CPUState *cs); void tcg_iommu_init_notifier_list(CPUState *cpu); void tcg_iommu_free_notifier_list(CPUState *cpu); diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -XXX,XX +XXX,XX @@ struct kvm_run; struct hax_vcpu_state; struct hvf_vcpu_state; -#define TB_JMP_CACHE_BITS 12 -#define TB_JMP_CACHE_SIZE (1 << TB_JMP_CACHE_BITS) - /* work queue */ /* The union type allows passing of 64 bit target pointers on 32 bit @@ -XXX,XX +XXX,XX @@ struct CPUState { CPUArchState *env_ptr; IcountDecr *icount_decr_ptr; - /* Accessed in parallel; all accesses must be atomic */ - TranslationBlock *tb_jmp_cache[TB_JMP_CACHE_SIZE]; + CPUJumpCache *tb_jmp_cache; struct GDBRegisterState *gdb_regs; int gdb_num_regs; @@ -XXX,XX +XXX,XX @@ extern CPUTailQ cpus; extern __thread CPUState *current_cpu; -static inline void cpu_tb_jmp_cache_clear(CPUState *cpu) -{ - unsigned int i; - - for (i = 0; i < TB_JMP_CACHE_SIZE; i++) { - qatomic_set(&cpu->tb_jmp_cache[i], NULL); - } -} - /** * qemu_tcg_mttcg_enabled: * Check whether we are running MultiThread TCG or not. diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h index XXXXXXX..XXXXXXX 100644 --- a/include/qemu/typedefs.h +++ b/include/qemu/typedefs.h @@ -XXX,XX +XXX,XX @@ typedef struct CoMutex CoMutex; typedef struct ConfidentialGuestSupport ConfidentialGuestSupport; typedef struct CPUAddressSpace CPUAddressSpace; typedef struct CPUArchState CPUArchState; +typedef struct CPUJumpCache CPUJumpCache; typedef struct CPUState CPUState; typedef struct CPUTLBEntryFull CPUTLBEntryFull; typedef struct DeviceListener DeviceListener; diff --git a/accel/stubs/tcg-stub.c b/accel/stubs/tcg-stub.c index XXXXXXX..XXXXXXX 100644 --- a/accel/stubs/tcg-stub.c +++ b/accel/stubs/tcg-stub.c @@ -XXX,XX +XXX,XX @@ void tlb_set_dirty(CPUState *cpu, target_ulong vaddr) { } +void tcg_flush_jmp_cache(CPUState *cpu) +{ +} + int probe_access_flags(CPUArchState *env, target_ulong addr, MMUAccessType access_type, int mmu_idx, bool nonfault, void **phost, uintptr_t retaddr) diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -XXX,XX +XXX,XX @@ #include "sysemu/replay.h" #include "sysemu/tcg.h" #include "exec/helper-proto.h" +#include "tb-jmp-cache.h" #include "tb-hash.h" #include "tb-context.h" #include "internal.h" @@ -XXX,XX +XXX,XX @@ static inline TranslationBlock *tb_lookup(CPUState *cpu, target_ulong pc, tcg_debug_assert(!(cflags & CF_INVALID)); hash = tb_jmp_cache_hash_func(pc); - tb = qatomic_rcu_read(&cpu->tb_jmp_cache[hash]); + tb = qatomic_rcu_read(&cpu->tb_jmp_cache->array[hash].tb); if (likely(tb && tb->pc == pc && @@ -XXX,XX +XXX,XX @@ static inline TranslationBlock *tb_lookup(CPUState *cpu, target_ulong pc, if (tb == NULL) { return NULL; } - qatomic_set(&cpu->tb_jmp_cache[hash], tb); + qatomic_set(&cpu->tb_jmp_cache->array[hash].tb, tb); return tb; } @@ -XXX,XX +XXX,XX @@ int cpu_exec(CPUState *cpu) tb = tb_lookup(cpu, pc, cs_base, flags, cflags); if (tb == NULL) { + uint32_t h; + mmap_lock(); tb = tb_gen_code(cpu, pc, cs_base, flags, cflags); mmap_unlock(); @@ -XXX,XX +XXX,XX @@ int cpu_exec(CPUState *cpu) * We add the TB in the virtual pc hash table * for the fast lookup */ - qatomic_set(&cpu->tb_jmp_cache[tb_jmp_cache_hash_func(pc)], tb); + h = tb_jmp_cache_hash_func(pc); + qatomic_set(&cpu->tb_jmp_cache->array[h].tb, tb); } #ifndef CONFIG_USER_ONLY diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ static void tlb_window_reset(CPUTLBDesc *desc, int64_t ns, static void tb_jmp_cache_clear_page(CPUState *cpu, target_ulong page_addr) { - unsigned int i, i0 = tb_jmp_cache_hash_page(page_addr); + int i, i0 = tb_jmp_cache_hash_page(page_addr); + CPUJumpCache *jc = cpu->tb_jmp_cache; for (i = 0; i < TB_JMP_PAGE_SIZE; i++) { - qatomic_set(&cpu->tb_jmp_cache[i0 + i], NULL); + qatomic_set(&jc->array[i0 + i].tb, NULL); } } @@ -XXX,XX +XXX,XX @@ static void tlb_flush_by_mmuidx_async_work(CPUState *cpu, run_on_cpu_data data) qemu_spin_unlock(&env_tlb(env)->c.lock); - cpu_tb_jmp_cache_clear(cpu); + tcg_flush_jmp_cache(cpu); if (to_clean == ALL_MMUIDX_BITS) { qatomic_set(&env_tlb(env)->c.full_flush_count, @@ -XXX,XX +XXX,XX @@ static void tlb_flush_range_by_mmuidx_async_0(CPUState *cpu, * longer to clear each entry individually than it will to clear it all. */ if (d.len >= (TARGET_PAGE_SIZE * TB_JMP_CACHE_SIZE)) { - cpu_tb_jmp_cache_clear(cpu); + tcg_flush_jmp_cache(cpu); return; } diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ #include "sysemu/tcg.h" #include "qapi/error.h" #include "hw/core/tcg-cpu-ops.h" +#include "tb-jmp-cache.h" #include "tb-hash.h" #include "tb-context.h" #include "internal.h" @@ -XXX,XX +XXX,XX @@ static void do_tb_flush(CPUState *cpu, run_on_cpu_data tb_flush_count) } CPU_FOREACH(cpu) { - cpu_tb_jmp_cache_clear(cpu); + tcg_flush_jmp_cache(cpu); } qht_reset_size(&tb_ctx.htable, CODE_GEN_HTABLE_SIZE); @@ -XXX,XX +XXX,XX @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list) /* remove the TB from the hash list */ h = tb_jmp_cache_hash_func(tb->pc); CPU_FOREACH(cpu) { - if (qatomic_read(&cpu->tb_jmp_cache[h]) == tb) { - qatomic_set(&cpu->tb_jmp_cache[h], NULL); + CPUJumpCache *jc = cpu->tb_jmp_cache; + if (qatomic_read(&jc->array[h].tb) == tb) { + qatomic_set(&jc->array[h].tb, NULL); } } @@ -XXX,XX +XXX,XX @@ int page_unprotect(target_ulong address, uintptr_t pc) } #endif /* CONFIG_USER_ONLY */ +/* + * Called by generic code at e.g. cpu reset after cpu creation, + * therefore we must be prepared to allocate the jump cache. + */ +void tcg_flush_jmp_cache(CPUState *cpu) +{ + CPUJumpCache *jc = cpu->tb_jmp_cache; + + if (likely(jc)) { + for (int i = 0; i < TB_JMP_CACHE_SIZE; i++) { + qatomic_set(&jc->array[i].tb, NULL); + } + } else { + /* This should happen once during realize, and thus never race. */ + jc = g_new0(CPUJumpCache, 1); + jc = qatomic_xchg(&cpu->tb_jmp_cache, jc); + assert(jc == NULL); + } +} + /* This is a wrapper for common code that can not use CONFIG_SOFTMMU */ void tcg_flush_softmmu_tlb(CPUState *cs) { diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c index XXXXXXX..XXXXXXX 100644 --- a/hw/core/cpu-common.c +++ b/hw/core/cpu-common.c @@ -XXX,XX +XXX,XX @@ static void cpu_common_reset(DeviceState *dev) cpu->cflags_next_tb = -1; if (tcg_enabled()) { - cpu_tb_jmp_cache_clear(cpu); - + tcg_flush_jmp_cache(cpu); tcg_flush_softmmu_tlb(cpu); } } diff --git a/plugins/core.c b/plugins/core.c index XXXXXXX..XXXXXXX 100644 --- a/plugins/core.c +++ b/plugins/core.c @@ -XXX,XX +XXX,XX @@ struct qemu_plugin_ctx *plugin_id_to_ctx_locked(qemu_plugin_id_t id) static void plugin_cpu_update__async(CPUState *cpu, run_on_cpu_data data) { bitmap_copy(cpu->plugin_mask, &data.host_ulong, QEMU_PLUGIN_EV_MAX); - cpu_tb_jmp_cache_clear(cpu); + tcg_flush_jmp_cache(cpu); } static void plugin_cpu_update__locked(gpointer k, gpointer v, gpointer udata) diff --git a/trace/control-target.c b/trace/control-target.c index XXXXXXX..XXXXXXX 100644 --- a/trace/control-target.c +++ b/trace/control-target.c @@ -XXX,XX +XXX,XX @@ static void trace_event_synchronize_vcpu_state_dynamic( { bitmap_copy(vcpu->trace_dstate, vcpu->trace_dstate_delayed, CPU_TRACE_DSTATE_MAX_EVENTS); - cpu_tb_jmp_cache_clear(vcpu); + tcg_flush_jmp_cache(vcpu); } void trace_event_set_vcpu_state_dynamic(CPUState *vcpu, -- 2.34.1 Populate this new method for all targets. Always match the result that would be given by cpu_get_tb_cpu_state, as we will want these values to correspond in the logs. Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> (target/sparc) Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- Cc: Eduardo Habkost <eduardo@habkost.net> (supporter:Machine core) Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> (supporter:Machine core) Cc: "Philippe Mathieu-Daudé" <f4bug@amsat.org> (reviewer:Machine core) Cc: Yanan Wang <wangyanan55@huawei.com> (reviewer:Machine core) Cc: Michael Rolnik <mrolnik@gmail.com> (maintainer:AVR TCG CPUs) Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> (maintainer:CRIS TCG CPUs) Cc: Taylor Simpson <tsimpson@quicinc.com> (supporter:Hexagon TCG CPUs) Cc: Song Gao <gaosong@loongson.cn> (maintainer:LoongArch TCG CPUs) Cc: Xiaojuan Yang <yangxiaojuan@loongson.cn> (maintainer:LoongArch TCG CPUs) Cc: Laurent Vivier <laurent@vivier.eu> (maintainer:M68K TCG CPUs) Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> (reviewer:MIPS TCG CPUs) Cc: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com> (reviewer:MIPS TCG CPUs) Cc: Chris Wulff <crwulff@gmail.com> (maintainer:NiosII TCG CPUs) Cc: Marek Vasut <marex@denx.de> (maintainer:NiosII TCG CPUs) Cc: Stafford Horne <shorne@gmail.com> (odd fixer:OpenRISC TCG CPUs) Cc: Yoshinori Sato <ysato@users.sourceforge.jp> (reviewer:RENESAS RX CPUs) Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> (maintainer:SPARC TCG CPUs) Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> (maintainer:TriCore TCG CPUs) Cc: Max Filippov <jcmvbkbc@gmail.com> (maintainer:Xtensa TCG CPUs) Cc: qemu-arm@nongnu.org (open list:ARM TCG CPUs) Cc: qemu-ppc@nongnu.org (open list:PowerPC TCG CPUs) Cc: qemu-riscv@nongnu.org (open list:RISC-V TCG CPUs) Cc: qemu-s390x@nongnu.org (open list:S390 TCG CPUs) --- include/hw/core/cpu.h | 3 +++ target/alpha/cpu.c | 9 +++++++++ target/arm/cpu.c | 13 +++++++++++++ target/avr/cpu.c | 8 ++++++++ target/cris/cpu.c | 8 ++++++++ target/hexagon/cpu.c | 8 ++++++++ target/hppa/cpu.c | 8 ++++++++ target/i386/cpu.c | 9 +++++++++ target/loongarch/cpu.c | 9 +++++++++ target/m68k/cpu.c | 8 ++++++++ target/microblaze/cpu.c | 8 ++++++++ target/mips/cpu.c | 8 ++++++++ target/nios2/cpu.c | 9 +++++++++ target/openrisc/cpu.c | 8 ++++++++ target/ppc/cpu_init.c | 8 ++++++++ target/riscv/cpu.c | 13 +++++++++++++ target/rx/cpu.c | 8 ++++++++ target/s390x/cpu.c | 8 ++++++++ target/sh4/cpu.c | 8 ++++++++ target/sparc/cpu.c | 8 ++++++++ target/tricore/cpu.c | 9 +++++++++ target/xtensa/cpu.c | 8 ++++++++ 22 files changed, 186 insertions(+) diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -XXX,XX +XXX,XX @@ struct SysemuCPUOps; * If the target behaviour here is anything other than "set * the PC register to the value passed in" then the target must * also implement the synchronize_from_tb hook. + * @get_pc: Callback for getting the Program Counter register. + * As above, with the semantics of the target architecture. * @gdb_read_register: Callback for letting GDB read a register. * @gdb_write_register: Callback for letting GDB write a register. * @gdb_adjust_breakpoint: Callback for adjusting the address of a @@ -XXX,XX +XXX,XX @@ struct CPUClass { void (*dump_state)(CPUState *cpu, FILE *, int flags); int64_t (*get_arch_id)(CPUState *cpu); void (*set_pc)(CPUState *cpu, vaddr value); + vaddr (*get_pc)(CPUState *cpu); int (*gdb_read_register)(CPUState *cpu, GByteArray *buf, int reg); int (*gdb_write_register)(CPUState *cpu, uint8_t *buf, int reg); vaddr (*gdb_adjust_breakpoint)(CPUState *cpu, vaddr addr); diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/alpha/cpu.c +++ b/target/alpha/cpu.c @@ -XXX,XX +XXX,XX @@ static void alpha_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.pc = value; } +static vaddr alpha_cpu_get_pc(CPUState *cs) +{ + AlphaCPU *cpu = ALPHA_CPU(cs); + + return cpu->env.pc; +} + + static bool alpha_cpu_has_work(CPUState *cs) { /* Here we are checking to see if the CPU should wake up from HALT. @@ -XXX,XX +XXX,XX @@ static void alpha_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = alpha_cpu_has_work; cc->dump_state = alpha_cpu_dump_state; cc->set_pc = alpha_cpu_set_pc; + cc->get_pc = alpha_cpu_get_pc; cc->gdb_read_register = alpha_cpu_gdb_read_register; cc->gdb_write_register = alpha_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/arm/cpu.c b/target/arm/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -XXX,XX +XXX,XX @@ static void arm_cpu_set_pc(CPUState *cs, vaddr value) } } +static vaddr arm_cpu_get_pc(CPUState *cs) +{ + ARMCPU *cpu = ARM_CPU(cs); + CPUARMState *env = &cpu->env; + + if (is_a64(env)) { + return env->pc; + } else { + return env->regs[15]; + } +} + #ifdef CONFIG_TCG void arm_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) @@ -XXX,XX +XXX,XX @@ static void arm_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = arm_cpu_has_work; cc->dump_state = arm_cpu_dump_state; cc->set_pc = arm_cpu_set_pc; + cc->get_pc = arm_cpu_get_pc; cc->gdb_read_register = arm_cpu_gdb_read_register; cc->gdb_write_register = arm_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/avr/cpu.c b/target/avr/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/avr/cpu.c +++ b/target/avr/cpu.c @@ -XXX,XX +XXX,XX @@ static void avr_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.pc_w = value / 2; /* internally PC points to words */ } +static vaddr avr_cpu_get_pc(CPUState *cs) +{ + AVRCPU *cpu = AVR_CPU(cs); + + return cpu->env.pc_w * 2; +} + static bool avr_cpu_has_work(CPUState *cs) { AVRCPU *cpu = AVR_CPU(cs); @@ -XXX,XX +XXX,XX @@ static void avr_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = avr_cpu_has_work; cc->dump_state = avr_cpu_dump_state; cc->set_pc = avr_cpu_set_pc; + cc->get_pc = avr_cpu_get_pc; dc->vmsd = &vms_avr_cpu; cc->sysemu_ops = &avr_sysemu_ops; cc->disas_set_info = avr_cpu_disas_set_info; diff --git a/target/cris/cpu.c b/target/cris/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/cris/cpu.c +++ b/target/cris/cpu.c @@ -XXX,XX +XXX,XX @@ static void cris_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.pc = value; } +static vaddr cris_cpu_get_pc(CPUState *cs) +{ + CRISCPU *cpu = CRIS_CPU(cs); + + return cpu->env.pc; +} + static bool cris_cpu_has_work(CPUState *cs) { return cs->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI); @@ -XXX,XX +XXX,XX @@ static void cris_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = cris_cpu_has_work; cc->dump_state = cris_cpu_dump_state; cc->set_pc = cris_cpu_set_pc; + cc->get_pc = cris_cpu_get_pc; cc->gdb_read_register = cris_cpu_gdb_read_register; cc->gdb_write_register = cris_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -XXX,XX +XXX,XX @@ static void hexagon_cpu_set_pc(CPUState *cs, vaddr value) env->gpr[HEX_REG_PC] = value; } +static vaddr hexagon_cpu_get_pc(CPUState *cs) +{ + HexagonCPU *cpu = HEXAGON_CPU(cs); + CPUHexagonState *env = &cpu->env; + return env->gpr[HEX_REG_PC]; +} + static void hexagon_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -XXX,XX +XXX,XX @@ static void hexagon_cpu_class_init(ObjectClass *c, void *data) cc->has_work = hexagon_cpu_has_work; cc->dump_state = hexagon_dump_state; cc->set_pc = hexagon_cpu_set_pc; + cc->get_pc = hexagon_cpu_get_pc; cc->gdb_read_register = hexagon_gdb_read_register; cc->gdb_write_register = hexagon_gdb_write_register; cc->gdb_num_core_regs = TOTAL_PER_THREAD_REGS + NUM_VREGS + NUM_QREGS; diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/hppa/cpu.c +++ b/target/hppa/cpu.c @@ -XXX,XX +XXX,XX @@ static void hppa_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.iaoq_b = value + 4; } +static vaddr hppa_cpu_get_pc(CPUState *cs) +{ + HPPACPU *cpu = HPPA_CPU(cs); + + return cpu->env.iaoq_f; +} + static void hppa_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -XXX,XX +XXX,XX @@ static void hppa_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = hppa_cpu_has_work; cc->dump_state = hppa_cpu_dump_state; cc->set_pc = hppa_cpu_set_pc; + cc->get_pc = hppa_cpu_get_pc; cc->gdb_read_register = hppa_cpu_gdb_read_register; cc->gdb_write_register = hppa_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/i386/cpu.c b/target/i386/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -XXX,XX +XXX,XX @@ static void x86_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.eip = value; } +static vaddr x86_cpu_get_pc(CPUState *cs) +{ + X86CPU *cpu = X86_CPU(cs); + + /* Match cpu_get_tb_cpu_state. */ + return cpu->env.eip + cpu->env.segs[R_CS].base; +} + int x86_cpu_pending_interrupt(CPUState *cs, int interrupt_request) { X86CPU *cpu = X86_CPU(cs); @@ -XXX,XX +XXX,XX @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data) cc->has_work = x86_cpu_has_work; cc->dump_state = x86_cpu_dump_state; cc->set_pc = x86_cpu_set_pc; + cc->get_pc = x86_cpu_get_pc; cc->gdb_read_register = x86_cpu_gdb_read_register; cc->gdb_write_register = x86_cpu_gdb_write_register; cc->get_arch_id = x86_cpu_get_arch_id; diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -XXX,XX +XXX,XX @@ static void loongarch_cpu_set_pc(CPUState *cs, vaddr value) env->pc = value; } +static vaddr loongarch_cpu_get_pc(CPUState *cs) +{ + LoongArchCPU *cpu = LOONGARCH_CPU(cs); + CPULoongArchState *env = &cpu->env; + + return env->pc; +} + #ifndef CONFIG_USER_ONLY #include "hw/loongarch/virt.h" @@ -XXX,XX +XXX,XX @@ static void loongarch_cpu_class_init(ObjectClass *c, void *data) cc->has_work = loongarch_cpu_has_work; cc->dump_state = loongarch_cpu_dump_state; cc->set_pc = loongarch_cpu_set_pc; + cc->get_pc = loongarch_cpu_get_pc; #ifndef CONFIG_USER_ONLY dc->vmsd = &vmstate_loongarch_cpu; cc->sysemu_ops = &loongarch_sysemu_ops; diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/m68k/cpu.c +++ b/target/m68k/cpu.c @@ -XXX,XX +XXX,XX @@ static void m68k_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.pc = value; } +static vaddr m68k_cpu_get_pc(CPUState *cs) +{ + M68kCPU *cpu = M68K_CPU(cs); + + return cpu->env.pc; +} + static bool m68k_cpu_has_work(CPUState *cs) { return cs->interrupt_request & CPU_INTERRUPT_HARD; @@ -XXX,XX +XXX,XX @@ static void m68k_cpu_class_init(ObjectClass *c, void *data) cc->has_work = m68k_cpu_has_work; cc->dump_state = m68k_cpu_dump_state; cc->set_pc = m68k_cpu_set_pc; + cc->get_pc = m68k_cpu_get_pc; cc->gdb_read_register = m68k_cpu_gdb_read_register; cc->gdb_write_register = m68k_cpu_gdb_write_register; #if defined(CONFIG_SOFTMMU) diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/microblaze/cpu.c +++ b/target/microblaze/cpu.c @@ -XXX,XX +XXX,XX @@ static void mb_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.iflags = 0; } +static vaddr mb_cpu_get_pc(CPUState *cs) +{ + MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs); + + return cpu->env.pc; +} + static void mb_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -XXX,XX +XXX,XX @@ static void mb_cpu_class_init(ObjectClass *oc, void *data) cc->dump_state = mb_cpu_dump_state; cc->set_pc = mb_cpu_set_pc; + cc->get_pc = mb_cpu_get_pc; cc->gdb_read_register = mb_cpu_gdb_read_register; cc->gdb_write_register = mb_cpu_gdb_write_register; diff --git a/target/mips/cpu.c b/target/mips/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/mips/cpu.c +++ b/target/mips/cpu.c @@ -XXX,XX +XXX,XX @@ static void mips_cpu_set_pc(CPUState *cs, vaddr value) mips_env_set_pc(&cpu->env, value); } +static vaddr mips_cpu_get_pc(CPUState *cs) +{ + MIPSCPU *cpu = MIPS_CPU(cs); + + return cpu->env.active_tc.PC; +} + static bool mips_cpu_has_work(CPUState *cs) { MIPSCPU *cpu = MIPS_CPU(cs); @@ -XXX,XX +XXX,XX @@ static void mips_cpu_class_init(ObjectClass *c, void *data) cc->has_work = mips_cpu_has_work; cc->dump_state = mips_cpu_dump_state; cc->set_pc = mips_cpu_set_pc; + cc->get_pc = mips_cpu_get_pc; cc->gdb_read_register = mips_cpu_gdb_read_register; cc->gdb_write_register = mips_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/nios2/cpu.c b/target/nios2/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/nios2/cpu.c +++ b/target/nios2/cpu.c @@ -XXX,XX +XXX,XX @@ static void nios2_cpu_set_pc(CPUState *cs, vaddr value) env->pc = value; } +static vaddr nios2_cpu_get_pc(CPUState *cs) +{ + Nios2CPU *cpu = NIOS2_CPU(cs); + CPUNios2State *env = &cpu->env; + + return env->pc; +} + static bool nios2_cpu_has_work(CPUState *cs) { return cs->interrupt_request & CPU_INTERRUPT_HARD; @@ -XXX,XX +XXX,XX @@ static void nios2_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = nios2_cpu_has_work; cc->dump_state = nios2_cpu_dump_state; cc->set_pc = nios2_cpu_set_pc; + cc->get_pc = nios2_cpu_get_pc; cc->disas_set_info = nios2_cpu_disas_set_info; #ifndef CONFIG_USER_ONLY cc->sysemu_ops = &nios2_sysemu_ops; diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/openrisc/cpu.c +++ b/target/openrisc/cpu.c @@ -XXX,XX +XXX,XX @@ static void openrisc_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.dflag = 0; } +static vaddr openrisc_cpu_get_pc(CPUState *cs) +{ + OpenRISCCPU *cpu = OPENRISC_CPU(cs); + + return cpu->env.pc; +} + static void openrisc_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -XXX,XX +XXX,XX @@ static void openrisc_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = openrisc_cpu_has_work; cc->dump_state = openrisc_cpu_dump_state; cc->set_pc = openrisc_cpu_set_pc; + cc->get_pc = openrisc_cpu_get_pc; cc->gdb_read_register = openrisc_cpu_gdb_read_register; cc->gdb_write_register = openrisc_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index XXXXXXX..XXXXXXX 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -XXX,XX +XXX,XX @@ static void ppc_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.nip = value; } +static vaddr ppc_cpu_get_pc(CPUState *cs) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + + return cpu->env.nip; +} + static bool ppc_cpu_has_work(CPUState *cs) { PowerPCCPU *cpu = POWERPC_CPU(cs); @@ -XXX,XX +XXX,XX @@ static void ppc_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = ppc_cpu_has_work; cc->dump_state = ppc_cpu_dump_state; cc->set_pc = ppc_cpu_set_pc; + cc->get_pc = ppc_cpu_get_pc; cc->gdb_read_register = ppc_cpu_gdb_read_register; cc->gdb_write_register = ppc_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static void riscv_cpu_set_pc(CPUState *cs, vaddr value) } } +static vaddr riscv_cpu_get_pc(CPUState *cs) +{ + RISCVCPU *cpu = RISCV_CPU(cs); + CPURISCVState *env = &cpu->env; + + /* Match cpu_get_tb_cpu_state. */ + if (env->xl == MXL_RV32) { + return env->pc & UINT32_MAX; + } + return env->pc; +} + static void riscv_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -XXX,XX +XXX,XX @@ static void riscv_cpu_class_init(ObjectClass *c, void *data) cc->has_work = riscv_cpu_has_work; cc->dump_state = riscv_cpu_dump_state; cc->set_pc = riscv_cpu_set_pc; + cc->get_pc = riscv_cpu_get_pc; cc->gdb_read_register = riscv_cpu_gdb_read_register; cc->gdb_write_register = riscv_cpu_gdb_write_register; cc->gdb_num_core_regs = 33; diff --git a/target/rx/cpu.c b/target/rx/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/rx/cpu.c +++ b/target/rx/cpu.c @@ -XXX,XX +XXX,XX @@ static void rx_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.pc = value; } +static vaddr rx_cpu_get_pc(CPUState *cs) +{ + RXCPU *cpu = RX_CPU(cs); + + return cpu->env.pc; +} + static void rx_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -XXX,XX +XXX,XX @@ static void rx_cpu_class_init(ObjectClass *klass, void *data) cc->has_work = rx_cpu_has_work; cc->dump_state = rx_cpu_dump_state; cc->set_pc = rx_cpu_set_pc; + cc->get_pc = rx_cpu_get_pc; #ifndef CONFIG_USER_ONLY cc->sysemu_ops = &rx_sysemu_ops; diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -XXX,XX +XXX,XX @@ static void s390_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.psw.addr = value; } +static vaddr s390_cpu_get_pc(CPUState *cs) +{ + S390CPU *cpu = S390_CPU(cs); + + return cpu->env.psw.addr; +} + static bool s390_cpu_has_work(CPUState *cs) { S390CPU *cpu = S390_CPU(cs); @@ -XXX,XX +XXX,XX @@ static void s390_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = s390_cpu_has_work; cc->dump_state = s390_cpu_dump_state; cc->set_pc = s390_cpu_set_pc; + cc->get_pc = s390_cpu_get_pc; cc->gdb_read_register = s390_cpu_gdb_read_register; cc->gdb_write_register = s390_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/sh4/cpu.c +++ b/target/sh4/cpu.c @@ -XXX,XX +XXX,XX @@ static void superh_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.pc = value; } +static vaddr superh_cpu_get_pc(CPUState *cs) +{ + SuperHCPU *cpu = SUPERH_CPU(cs); + + return cpu->env.pc; +} + static void superh_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -XXX,XX +XXX,XX @@ static void superh_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = superh_cpu_has_work; cc->dump_state = superh_cpu_dump_state; cc->set_pc = superh_cpu_set_pc; + cc->get_pc = superh_cpu_get_pc; cc->gdb_read_register = superh_cpu_gdb_read_register; cc->gdb_write_register = superh_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/sparc/cpu.c +++ b/target/sparc/cpu.c @@ -XXX,XX +XXX,XX @@ static void sparc_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.npc = value + 4; } +static vaddr sparc_cpu_get_pc(CPUState *cs) +{ + SPARCCPU *cpu = SPARC_CPU(cs); + + return cpu->env.pc; +} + static void sparc_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -XXX,XX +XXX,XX @@ static void sparc_cpu_class_init(ObjectClass *oc, void *data) cc->memory_rw_debug = sparc_cpu_memory_rw_debug; #endif cc->set_pc = sparc_cpu_set_pc; + cc->get_pc = sparc_cpu_get_pc; cc->gdb_read_register = sparc_cpu_gdb_read_register; cc->gdb_write_register = sparc_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/tricore/cpu.c +++ b/target/tricore/cpu.c @@ -XXX,XX +XXX,XX @@ static void tricore_cpu_set_pc(CPUState *cs, vaddr value) env->PC = value & ~(target_ulong)1; } +static vaddr tricore_cpu_get_pc(CPUState *cs) +{ + TriCoreCPU *cpu = TRICORE_CPU(cs); + CPUTriCoreState *env = &cpu->env; + + return env->PC; +} + static void tricore_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { @@ -XXX,XX +XXX,XX @@ static void tricore_cpu_class_init(ObjectClass *c, void *data) cc->dump_state = tricore_cpu_dump_state; cc->set_pc = tricore_cpu_set_pc; + cc->get_pc = tricore_cpu_get_pc; cc->sysemu_ops = &tricore_sysemu_ops; cc->tcg_ops = &tricore_tcg_ops; } diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/xtensa/cpu.c +++ b/target/xtensa/cpu.c @@ -XXX,XX +XXX,XX @@ static void xtensa_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.pc = value; } +static vaddr xtensa_cpu_get_pc(CPUState *cs) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + + return cpu->env.pc; +} + static bool xtensa_cpu_has_work(CPUState *cs) { #ifndef CONFIG_USER_ONLY @@ -XXX,XX +XXX,XX @@ static void xtensa_cpu_class_init(ObjectClass *oc, void *data) cc->has_work = xtensa_cpu_has_work; cc->dump_state = xtensa_cpu_dump_state; cc->set_pc = xtensa_cpu_set_pc; + cc->get_pc = xtensa_cpu_get_pc; cc->gdb_read_register = xtensa_cpu_gdb_read_register; cc->gdb_write_register = xtensa_cpu_gdb_write_register; cc->gdb_stop_before_watchpoint = true; -- 2.34.1 The availability of tb->pc will shortly be conditional. Introduce accessor functions to minimize ifdefs. Pass around a known pc to places like tcg_gen_code, where the caller must already have the value. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/internal.h | 6 ++++ include/exec/exec-all.h | 6 ++++ include/tcg/tcg.h | 2 +- accel/tcg/cpu-exec.c | 46 ++++++++++++++----------- accel/tcg/translate-all.c | 37 +++++++++++--------- target/arm/cpu.c | 4 +-- target/avr/cpu.c | 2 +- target/hexagon/cpu.c | 2 +- target/hppa/cpu.c | 4 +-- target/i386/tcg/tcg-cpu.c | 2 +- target/loongarch/cpu.c | 2 +- target/microblaze/cpu.c | 2 +- target/mips/tcg/exception.c | 2 +- target/mips/tcg/sysemu/special_helper.c | 2 +- target/openrisc/cpu.c | 2 +- target/riscv/cpu.c | 4 +-- target/rx/cpu.c | 2 +- target/sh4/cpu.c | 4 +-- target/sparc/cpu.c | 2 +- target/tricore/cpu.c | 2 +- tcg/tcg.c | 8 ++--- 21 files changed, 82 insertions(+), 61 deletions(-) diff --git a/accel/tcg/internal.h b/accel/tcg/internal.h index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/internal.h +++ b/accel/tcg/internal.h @@ -XXX,XX +XXX,XX @@ G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr); void page_init(void); void tb_htable_init(void); +/* Return the current PC from CPU, which may be cached in TB. */ +static inline target_ulong log_pc(CPUState *cpu, const TranslationBlock *tb) +{ + return tb_pc(tb); +} + #endif /* ACCEL_TCG_INTERNAL_H */ diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ struct TranslationBlock { uintptr_t jmp_dest[2]; }; +/* Hide the read to avoid ifdefs for TARGET_TB_PCREL. */ +static inline target_ulong tb_pc(const TranslationBlock *tb) +{ + return tb->pc; +} + /* Hide the qatomic_read to make code a little easier on the eyes */ static inline uint32_t tb_cflags(const TranslationBlock *tb) { diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -XXX,XX +XXX,XX @@ void tcg_register_thread(void); void tcg_prologue_init(TCGContext *s); void tcg_func_start(TCGContext *s); -int tcg_gen_code(TCGContext *s, TranslationBlock *tb); +int tcg_gen_code(TCGContext *s, TranslationBlock *tb, target_ulong pc_start); void tcg_set_frame(TCGContext *s, TCGReg reg, intptr_t start, intptr_t size); diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -XXX,XX +XXX,XX @@ static bool tb_lookup_cmp(const void *p, const void *d) const TranslationBlock *tb = p; const struct tb_desc *desc = d; - if (tb->pc == desc->pc && + if (tb_pc(tb) == desc->pc && tb->page_addr[0] == desc->page_addr0 && tb->cs_base == desc->cs_base && tb->flags == desc->flags && @@ -XXX,XX +XXX,XX @@ static inline TranslationBlock *tb_lookup(CPUState *cpu, target_ulong pc, return tb; } -static inline void log_cpu_exec(target_ulong pc, CPUState *cpu, - const TranslationBlock *tb) +static void log_cpu_exec(target_ulong pc, CPUState *cpu, + const TranslationBlock *tb) { - if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_CPU | CPU_LOG_EXEC)) - && qemu_log_in_addr_range(pc)) { - + if (qemu_log_in_addr_range(pc)) { qemu_log_mask(CPU_LOG_EXEC, "Trace %d: %p [" TARGET_FMT_lx "/" TARGET_FMT_lx "/%08x/%08x] %s\n", @@ -XXX,XX +XXX,XX @@ const void *HELPER(lookup_tb_ptr)(CPUArchState *env) return tcg_code_gen_epilogue; } - log_cpu_exec(pc, cpu, tb); + if (qemu_loglevel_mask(CPU_LOG_TB_CPU | CPU_LOG_EXEC)) { + log_cpu_exec(pc, cpu, tb); + } return tb->tc.ptr; } @@ -XXX,XX +XXX,XX @@ cpu_tb_exec(CPUState *cpu, TranslationBlock *itb, int *tb_exit) TranslationBlock *last_tb; const void *tb_ptr = itb->tc.ptr; - log_cpu_exec(itb->pc, cpu, itb); + if (qemu_loglevel_mask(CPU_LOG_TB_CPU | CPU_LOG_EXEC)) { + log_cpu_exec(log_pc(cpu, itb), cpu, itb); + } qemu_thread_jit_execute(); ret = tcg_qemu_tb_exec(env, tb_ptr); @@ -XXX,XX +XXX,XX @@ cpu_tb_exec(CPUState *cpu, TranslationBlock *itb, int *tb_exit) * of the start of the TB. */ CPUClass *cc = CPU_GET_CLASS(cpu); - qemu_log_mask_and_addr(CPU_LOG_EXEC, last_tb->pc, - "Stopped execution of TB chain before %p [" - TARGET_FMT_lx "] %s\n", - last_tb->tc.ptr, last_tb->pc, - lookup_symbol(last_tb->pc)); + if (cc->tcg_ops->synchronize_from_tb) { cc->tcg_ops->synchronize_from_tb(cpu, last_tb); } else { assert(cc->set_pc); - cc->set_pc(cpu, last_tb->pc); + cc->set_pc(cpu, tb_pc(last_tb)); + } + if (qemu_loglevel_mask(CPU_LOG_EXEC)) { + target_ulong pc = log_pc(cpu, last_tb); + if (qemu_log_in_addr_range(pc)) { + qemu_log("Stopped execution of TB chain before %p [" + TARGET_FMT_lx "] %s\n", + last_tb->tc.ptr, pc, lookup_symbol(pc)); + } } } @@ -XXX,XX +XXX,XX @@ static inline void tb_add_jump(TranslationBlock *tb, int n, qemu_spin_unlock(&tb_next->jmp_lock); - qemu_log_mask_and_addr(CPU_LOG_EXEC, tb->pc, - "Linking TBs %p [" TARGET_FMT_lx - "] index %d -> %p [" TARGET_FMT_lx "]\n", - tb->tc.ptr, tb->pc, n, - tb_next->tc.ptr, tb_next->pc); + qemu_log_mask(CPU_LOG_EXEC, "Linking TBs %p index %d -> %p\n", + tb->tc.ptr, n, tb_next->tc.ptr); return; out_unlock_next: @@ -XXX,XX +XXX,XX @@ static inline bool cpu_handle_interrupt(CPUState *cpu, } static inline void cpu_loop_exec_tb(CPUState *cpu, TranslationBlock *tb, + target_ulong pc, TranslationBlock **last_tb, int *tb_exit) { int32_t insns_left; - trace_exec_tb(tb, tb->pc); + trace_exec_tb(tb, pc); tb = cpu_tb_exec(cpu, tb, tb_exit); if (*tb_exit != TB_EXIT_REQUESTED) { *last_tb = tb; @@ -XXX,XX +XXX,XX @@ int cpu_exec(CPUState *cpu) tb_add_jump(last_tb, tb_exit, tb); } - cpu_loop_exec_tb(cpu, tb, &last_tb, &tb_exit); + cpu_loop_exec_tb(cpu, tb, pc, &last_tb, &tb_exit); /* Try to align the host and virtual clocks if the guest is in advance */ diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ static int encode_search(TranslationBlock *tb, uint8_t *block) for (j = 0; j < TARGET_INSN_START_WORDS; ++j) { if (i == 0) { - prev = (j == 0 ? tb->pc : 0); + prev = (j == 0 ? tb_pc(tb) : 0); } else { prev = tcg_ctx->gen_insn_data[i - 1][j]; } @@ -XXX,XX +XXX,XX @@ static int encode_search(TranslationBlock *tb, uint8_t *block) static int cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb, uintptr_t searched_pc, bool reset_icount) { - target_ulong data[TARGET_INSN_START_WORDS] = { tb->pc }; + target_ulong data[TARGET_INSN_START_WORDS] = { tb_pc(tb) }; uintptr_t host_pc = (uintptr_t)tb->tc.ptr; CPUArchState *env = cpu->env_ptr; const uint8_t *p = tb->tc.ptr + tb->tc.size; @@ -XXX,XX +XXX,XX @@ static bool tb_cmp(const void *ap, const void *bp) const TranslationBlock *a = ap; const TranslationBlock *b = bp; - return a->pc == b->pc && + return tb_pc(a) == tb_pc(b) && a->cs_base == b->cs_base && a->flags == b->flags && (tb_cflags(a) & ~CF_INVALID) == (tb_cflags(b) & ~CF_INVALID) && @@ -XXX,XX +XXX,XX @@ static void do_tb_invalidate_check(void *p, uint32_t hash, void *userp) TranslationBlock *tb = p; target_ulong addr = *(target_ulong *)userp; - if (!(addr + TARGET_PAGE_SIZE <= tb->pc || addr >= tb->pc + tb->size)) { + if (!(addr + TARGET_PAGE_SIZE <= tb_pc(tb) || + addr >= tb_pc(tb) + tb->size)) { printf("ERROR invalidate: address=" TARGET_FMT_lx - " PC=%08lx size=%04x\n", addr, (long)tb->pc, tb->size); + " PC=%08lx size=%04x\n", addr, (long)tb_pc(tb), tb->size); } } @@ -XXX,XX +XXX,XX @@ static void do_tb_page_check(void *p, uint32_t hash, void *userp) TranslationBlock *tb = p; int flags1, flags2; - flags1 = page_get_flags(tb->pc); - flags2 = page_get_flags(tb->pc + tb->size - 1); + flags1 = page_get_flags(tb_pc(tb)); + flags2 = page_get_flags(tb_pc(tb) + tb->size - 1); if ((flags1 & PAGE_WRITE) || (flags2 & PAGE_WRITE)) { printf("ERROR page flags: PC=%08lx size=%04x f1=%x f2=%x\n", - (long)tb->pc, tb->size, flags1, flags2); + (long)tb_pc(tb), tb->size, flags1, flags2); } } @@ -XXX,XX +XXX,XX @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list) /* remove the TB from the hash list */ phys_pc = tb->page_addr[0]; - h = tb_hash_func(phys_pc, tb->pc, tb->flags, orig_cflags, + h = tb_hash_func(phys_pc, tb_pc(tb), tb->flags, orig_cflags, tb->trace_vcpu_dstate); if (!qht_remove(&tb_ctx.htable, tb, h)) { return; @@ -XXX,XX +XXX,XX @@ tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, } /* add in the hash table */ - h = tb_hash_func(phys_pc, tb->pc, tb->flags, tb->cflags, + h = tb_hash_func(phys_pc, tb_pc(tb), tb->flags, tb->cflags, tb->trace_vcpu_dstate); qht_insert(&tb_ctx.htable, tb, h, &existing_tb); @@ -XXX,XX +XXX,XX @@ TranslationBlock *tb_gen_code(CPUState *cpu, tcg_ctx->cpu = NULL; max_insns = tb->icount; - trace_translate_block(tb, tb->pc, tb->tc.ptr); + trace_translate_block(tb, pc, tb->tc.ptr); /* generate machine code */ tb->jmp_reset_offset[0] = TB_JMP_RESET_OFFSET_INVALID; @@ -XXX,XX +XXX,XX @@ TranslationBlock *tb_gen_code(CPUState *cpu, ti = profile_getclock(); #endif - gen_code_size = tcg_gen_code(tcg_ctx, tb); + gen_code_size = tcg_gen_code(tcg_ctx, tb, pc); if (unlikely(gen_code_size < 0)) { error_return: switch (gen_code_size) { @@ -XXX,XX +XXX,XX @@ TranslationBlock *tb_gen_code(CPUState *cpu, #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_OUT_ASM) && - qemu_log_in_addr_range(tb->pc)) { + qemu_log_in_addr_range(pc)) { FILE *logfile = qemu_log_trylock(); if (logfile) { int code_size, data_size; @@ -XXX,XX +XXX,XX @@ void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr) */ cpu->cflags_next_tb = curr_cflags(cpu) | CF_MEMI_ONLY | CF_LAST_IO | n; - qemu_log_mask_and_addr(CPU_LOG_EXEC, tb->pc, - "cpu_io_recompile: rewound execution of TB to " - TARGET_FMT_lx "\n", tb->pc); + if (qemu_loglevel_mask(CPU_LOG_EXEC)) { + target_ulong pc = log_pc(cpu, tb); + if (qemu_log_in_addr_range(pc)) { + qemu_log("cpu_io_recompile: rewound execution of TB to " + TARGET_FMT_lx "\n", pc); + } + } cpu_loop_exit_noexc(cpu); } diff --git a/target/arm/cpu.c b/target/arm/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -XXX,XX +XXX,XX @@ void arm_cpu_synchronize_from_tb(CPUState *cs, * never possible for an AArch64 TB to chain to an AArch32 TB. */ if (is_a64(env)) { - env->pc = tb->pc; + env->pc = tb_pc(tb); } else { - env->regs[15] = tb->pc; + env->regs[15] = tb_pc(tb); } } #endif /* CONFIG_TCG */ diff --git a/target/avr/cpu.c b/target/avr/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/avr/cpu.c +++ b/target/avr/cpu.c @@ -XXX,XX +XXX,XX @@ static void avr_cpu_synchronize_from_tb(CPUState *cs, AVRCPU *cpu = AVR_CPU(cs); CPUAVRState *env = &cpu->env; - env->pc_w = tb->pc / 2; /* internally PC points to words */ + env->pc_w = tb_pc(tb) / 2; /* internally PC points to words */ } static void avr_cpu_reset(DeviceState *ds) diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -XXX,XX +XXX,XX @@ static void hexagon_cpu_synchronize_from_tb(CPUState *cs, { HexagonCPU *cpu = HEXAGON_CPU(cs); CPUHexagonState *env = &cpu->env; - env->gpr[HEX_REG_PC] = tb->pc; + env->gpr[HEX_REG_PC] = tb_pc(tb); } static bool hexagon_cpu_has_work(CPUState *cs) diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/hppa/cpu.c +++ b/target/hppa/cpu.c @@ -XXX,XX +XXX,XX @@ static void hppa_cpu_synchronize_from_tb(CPUState *cs, HPPACPU *cpu = HPPA_CPU(cs); #ifdef CONFIG_USER_ONLY - cpu->env.iaoq_f = tb->pc; + cpu->env.iaoq_f = tb_pc(tb); cpu->env.iaoq_b = tb->cs_base; #else /* Recover the IAOQ values from the GVA + PRIV. */ @@ -XXX,XX +XXX,XX @@ static void hppa_cpu_synchronize_from_tb(CPUState *cs, int32_t diff = cs_base; cpu->env.iasq_f = iasq_f; - cpu->env.iaoq_f = (tb->pc & ~iasq_f) + priv; + cpu->env.iaoq_f = (tb_pc(tb) & ~iasq_f) + priv; if (diff) { cpu->env.iaoq_b = cpu->env.iaoq_f + diff; } diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/tcg/tcg-cpu.c +++ b/target/i386/tcg/tcg-cpu.c @@ -XXX,XX +XXX,XX @@ static void x86_cpu_synchronize_from_tb(CPUState *cs, { X86CPU *cpu = X86_CPU(cs); - cpu->env.eip = tb->pc - tb->cs_base; + cpu->env.eip = tb_pc(tb) - tb->cs_base; } #ifndef CONFIG_USER_ONLY diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -XXX,XX +XXX,XX @@ static void loongarch_cpu_synchronize_from_tb(CPUState *cs, LoongArchCPU *cpu = LOONGARCH_CPU(cs); CPULoongArchState *env = &cpu->env; - env->pc = tb->pc; + env->pc = tb_pc(tb); } #endif /* CONFIG_TCG */ diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/microblaze/cpu.c +++ b/target/microblaze/cpu.c @@ -XXX,XX +XXX,XX @@ static void mb_cpu_synchronize_from_tb(CPUState *cs, { MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs); - cpu->env.pc = tb->pc; + cpu->env.pc = tb_pc(tb); cpu->env.iflags = tb->flags & IFLAGS_TB_MASK; } diff --git a/target/mips/tcg/exception.c b/target/mips/tcg/exception.c index XXXXXXX..XXXXXXX 100644 --- a/target/mips/tcg/exception.c +++ b/target/mips/tcg/exception.c @@ -XXX,XX +XXX,XX @@ void mips_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) MIPSCPU *cpu = MIPS_CPU(cs); CPUMIPSState *env = &cpu->env; - env->active_tc.PC = tb->pc; + env->active_tc.PC = tb_pc(tb); env->hflags &= ~MIPS_HFLAG_BMASK; env->hflags |= tb->flags & MIPS_HFLAG_BMASK; } diff --git a/target/mips/tcg/sysemu/special_helper.c b/target/mips/tcg/sysemu/special_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/mips/tcg/sysemu/special_helper.c +++ b/target/mips/tcg/sysemu/special_helper.c @@ -XXX,XX +XXX,XX @@ bool mips_io_recompile_replay_branch(CPUState *cs, const TranslationBlock *tb) CPUMIPSState *env = &cpu->env; if ((env->hflags & MIPS_HFLAG_BMASK) != 0 - && env->active_tc.PC != tb->pc) { + && env->active_tc.PC != tb_pc(tb)) { env->active_tc.PC -= (env->hflags & MIPS_HFLAG_B16 ? 2 : 4); env->hflags &= ~MIPS_HFLAG_BMASK; return true; diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/openrisc/cpu.c +++ b/target/openrisc/cpu.c @@ -XXX,XX +XXX,XX @@ static void openrisc_cpu_synchronize_from_tb(CPUState *cs, { OpenRISCCPU *cpu = OPENRISC_CPU(cs); - cpu->env.pc = tb->pc; + cpu->env.pc = tb_pc(tb); } diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static void riscv_cpu_synchronize_from_tb(CPUState *cs, RISCVMXL xl = FIELD_EX32(tb->flags, TB_FLAGS, XL); if (xl == MXL_RV32) { - env->pc = (int32_t)tb->pc; + env->pc = (int32_t)tb_pc(tb); } else { - env->pc = tb->pc; + env->pc = tb_pc(tb); } } diff --git a/target/rx/cpu.c b/target/rx/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/rx/cpu.c +++ b/target/rx/cpu.c @@ -XXX,XX +XXX,XX @@ static void rx_cpu_synchronize_from_tb(CPUState *cs, { RXCPU *cpu = RX_CPU(cs); - cpu->env.pc = tb->pc; + cpu->env.pc = tb_pc(tb); } static bool rx_cpu_has_work(CPUState *cs) diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/sh4/cpu.c +++ b/target/sh4/cpu.c @@ -XXX,XX +XXX,XX @@ static void superh_cpu_synchronize_from_tb(CPUState *cs, { SuperHCPU *cpu = SUPERH_CPU(cs); - cpu->env.pc = tb->pc; + cpu->env.pc = tb_pc(tb); cpu->env.flags = tb->flags & TB_FLAG_ENVFLAGS_MASK; } @@ -XXX,XX +XXX,XX @@ static bool superh_io_recompile_replay_branch(CPUState *cs, CPUSH4State *env = &cpu->env; if ((env->flags & ((DELAY_SLOT | DELAY_SLOT_CONDITIONAL))) != 0 - && env->pc != tb->pc) { + && env->pc != tb_pc(tb)) { env->pc -= 2; env->flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); return true; diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/sparc/cpu.c +++ b/target/sparc/cpu.c @@ -XXX,XX +XXX,XX @@ static void sparc_cpu_synchronize_from_tb(CPUState *cs, { SPARCCPU *cpu = SPARC_CPU(cs); - cpu->env.pc = tb->pc; + cpu->env.pc = tb_pc(tb); cpu->env.npc = tb->cs_base; } diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/tricore/cpu.c +++ b/target/tricore/cpu.c @@ -XXX,XX +XXX,XX @@ static void tricore_cpu_synchronize_from_tb(CPUState *cs, TriCoreCPU *cpu = TRICORE_CPU(cs); CPUTriCoreState *env = &cpu->env; - env->PC = tb->pc; + env->PC = tb_pc(tb); } static void tricore_cpu_reset(DeviceState *dev) diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ int64_t tcg_cpu_exec_time(void) #endif -int tcg_gen_code(TCGContext *s, TranslationBlock *tb) +int tcg_gen_code(TCGContext *s, TranslationBlock *tb, target_ulong pc_start) { #ifdef CONFIG_PROFILER TCGProfile *prof = &s->prof; @@ -XXX,XX +XXX,XX @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb) #ifdef DEBUG_DISAS if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP) - && qemu_log_in_addr_range(tb->pc))) { + && qemu_log_in_addr_range(pc_start))) { FILE *logfile = qemu_log_trylock(); if (logfile) { fprintf(logfile, "OP:\n"); @@ -XXX,XX +XXX,XX @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb) if (s->nb_indirects > 0) { #ifdef DEBUG_DISAS if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP_IND) - && qemu_log_in_addr_range(tb->pc))) { + && qemu_log_in_addr_range(pc_start))) { FILE *logfile = qemu_log_trylock(); if (logfile) { fprintf(logfile, "OP before indirect lowering:\n"); @@ -XXX,XX +XXX,XX @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb) #ifdef DEBUG_DISAS if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP_OPT) - && qemu_log_in_addr_range(tb->pc))) { + && qemu_log_in_addr_range(pc_start))) { FILE *logfile = qemu_log_trylock(); if (logfile) { fprintf(logfile, "OP after optimization and liveness analysis:\n"); -- 2.34.1 Prepare for targets to be able to produce TBs that can run in more than one virtual context. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/internal.h | 4 +++ accel/tcg/tb-jmp-cache.h | 41 +++++++++++++++++++++++++ include/exec/cpu-defs.h | 3 ++ include/exec/exec-all.h | 32 ++++++++++++++++++-- accel/tcg/cpu-exec.c | 16 ++++++---- accel/tcg/translate-all.c | 64 ++++++++++++++++++++++++++------------- 6 files changed, 131 insertions(+), 29 deletions(-) diff --git a/accel/tcg/internal.h b/accel/tcg/internal.h index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/internal.h +++ b/accel/tcg/internal.h @@ -XXX,XX +XXX,XX @@ void tb_htable_init(void); /* Return the current PC from CPU, which may be cached in TB. */ static inline target_ulong log_pc(CPUState *cpu, const TranslationBlock *tb) { +#if TARGET_TB_PCREL + return cpu->cc->get_pc(cpu); +#else return tb_pc(tb); +#endif } #endif /* ACCEL_TCG_INTERNAL_H */ diff --git a/accel/tcg/tb-jmp-cache.h b/accel/tcg/tb-jmp-cache.h index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/tb-jmp-cache.h +++ b/accel/tcg/tb-jmp-cache.h @@ -XXX,XX +XXX,XX @@ /* * Accessed in parallel; all accesses to 'tb' must be atomic. + * For TARGET_TB_PCREL, accesses to 'pc' must be protected by + * a load_acquire/store_release to 'tb'. */ struct CPUJumpCache { struct { TranslationBlock *tb; +#if TARGET_TB_PCREL + target_ulong pc; +#endif } array[TB_JMP_CACHE_SIZE]; }; +static inline TranslationBlock * +tb_jmp_cache_get_tb(CPUJumpCache *jc, uint32_t hash) +{ +#if TARGET_TB_PCREL + /* Use acquire to ensure current load of pc from jc. */ + return qatomic_load_acquire(&jc->array[hash].tb); +#else + /* Use rcu_read to ensure current load of pc from *tb. */ + return qatomic_rcu_read(&jc->array[hash].tb); +#endif +} + +static inline target_ulong +tb_jmp_cache_get_pc(CPUJumpCache *jc, uint32_t hash, TranslationBlock *tb) +{ +#if TARGET_TB_PCREL + return jc->array[hash].pc; +#else + return tb_pc(tb); +#endif +} + +static inline void +tb_jmp_cache_set(CPUJumpCache *jc, uint32_t hash, + TranslationBlock *tb, target_ulong pc) +{ +#if TARGET_TB_PCREL + jc->array[hash].pc = pc; + /* Use store_release on tb to ensure pc is written first. */ + qatomic_store_release(&jc->array[hash].tb, tb); +#else + /* Use the pc value already stored in tb->pc. */ + qatomic_set(&jc->array[hash].tb, tb); +#endif +} + #endif /* ACCEL_TCG_TB_JMP_CACHE_H */ diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/cpu-defs.h +++ b/include/exec/cpu-defs.h @@ -XXX,XX +XXX,XX @@ # error TARGET_PAGE_BITS must be defined in cpu-param.h # endif #endif +#ifndef TARGET_TB_PCREL +# define TARGET_TB_PCREL 0 +#endif #define TARGET_LONG_SIZE (TARGET_LONG_BITS / 8) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ struct tb_tc { }; struct TranslationBlock { - target_ulong pc; /* simulated PC corresponding to this block (EIP + CS base) */ - target_ulong cs_base; /* CS base for this block */ +#if !TARGET_TB_PCREL + /* + * Guest PC corresponding to this block. This must be the true + * virtual address. Therefore e.g. x86 stores EIP + CS_BASE, and + * targets like Arm, MIPS, HP-PA, which reuse low bits for ISA or + * privilege, must store those bits elsewhere. + * + * If TARGET_TB_PCREL, the opcodes for the TranslationBlock are + * written such that the TB is associated only with the physical + * page and may be run in any virtual address context. In this case, + * PC must always be taken from ENV in a target-specific manner. + * Unwind information is taken as offsets from the page, to be + * deposited into the "current" PC. + */ + target_ulong pc; +#endif + + /* + * Target-specific data associated with the TranslationBlock, e.g.: + * x86: the original user, the Code Segment virtual base, + * arm: an extension of tb->flags, + * s390x: instruction data for EXECUTE, + * sparc: the next pc of the instruction queue (for delay slots). + */ + target_ulong cs_base; + uint32_t flags; /* flags defining in which context the code was generated */ uint32_t cflags; /* compile flags */ @@ -XXX,XX +XXX,XX @@ struct TranslationBlock { /* Hide the read to avoid ifdefs for TARGET_TB_PCREL. */ static inline target_ulong tb_pc(const TranslationBlock *tb) { +#if TARGET_TB_PCREL + qemu_build_not_reached(); +#else return tb->pc; +#endif } /* Hide the qatomic_read to make code a little easier on the eyes */ diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -XXX,XX +XXX,XX @@ static bool tb_lookup_cmp(const void *p, const void *d) const TranslationBlock *tb = p; const struct tb_desc *desc = d; - if (tb_pc(tb) == desc->pc && + if ((TARGET_TB_PCREL || tb_pc(tb) == desc->pc) && tb->page_addr[0] == desc->page_addr0 && tb->cs_base == desc->cs_base && tb->flags == desc->flags && @@ -XXX,XX +XXX,XX @@ static TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc, return NULL; } desc.page_addr0 = phys_pc; - h = tb_hash_func(phys_pc, pc, flags, cflags, *cpu->trace_dstate); + h = tb_hash_func(phys_pc, (TARGET_TB_PCREL ? 0 : pc), + flags, cflags, *cpu->trace_dstate); return qht_lookup_custom(&tb_ctx.htable, &desc, h, tb_lookup_cmp); } @@ -XXX,XX +XXX,XX @@ static inline TranslationBlock *tb_lookup(CPUState *cpu, target_ulong pc, uint32_t flags, uint32_t cflags) { TranslationBlock *tb; + CPUJumpCache *jc; uint32_t hash; /* we should never be trying to look up an INVALID tb */ tcg_debug_assert(!(cflags & CF_INVALID)); hash = tb_jmp_cache_hash_func(pc); - tb = qatomic_rcu_read(&cpu->tb_jmp_cache->array[hash].tb); + jc = cpu->tb_jmp_cache; + tb = tb_jmp_cache_get_tb(jc, hash); if (likely(tb && - tb->pc == pc && + tb_jmp_cache_get_pc(jc, hash, tb) == pc && tb->cs_base == cs_base && tb->flags == flags && tb->trace_vcpu_dstate == *cpu->trace_dstate && @@ -XXX,XX +XXX,XX @@ static inline TranslationBlock *tb_lookup(CPUState *cpu, target_ulong pc, if (tb == NULL) { return NULL; } - qatomic_set(&cpu->tb_jmp_cache->array[hash].tb, tb); + tb_jmp_cache_set(jc, hash, tb, pc); return tb; } @@ -XXX,XX +XXX,XX @@ cpu_tb_exec(CPUState *cpu, TranslationBlock *itb, int *tb_exit) if (cc->tcg_ops->synchronize_from_tb) { cc->tcg_ops->synchronize_from_tb(cpu, last_tb); } else { + assert(!TARGET_TB_PCREL); assert(cc->set_pc); cc->set_pc(cpu, tb_pc(last_tb)); } @@ -XXX,XX +XXX,XX @@ int cpu_exec(CPUState *cpu) * for the fast lookup */ h = tb_jmp_cache_hash_func(pc); - qatomic_set(&cpu->tb_jmp_cache->array[h].tb, tb); + tb_jmp_cache_set(cpu->tb_jmp_cache, h, tb, pc); } #ifndef CONFIG_USER_ONLY diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ static int encode_search(TranslationBlock *tb, uint8_t *block) for (j = 0; j < TARGET_INSN_START_WORDS; ++j) { if (i == 0) { - prev = (j == 0 ? tb_pc(tb) : 0); + prev = (!TARGET_TB_PCREL && j == 0 ? tb_pc(tb) : 0); } else { prev = tcg_ctx->gen_insn_data[i - 1][j]; } @@ -XXX,XX +XXX,XX @@ static int encode_search(TranslationBlock *tb, uint8_t *block) static int cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb, uintptr_t searched_pc, bool reset_icount) { - target_ulong data[TARGET_INSN_START_WORDS] = { tb_pc(tb) }; + target_ulong data[TARGET_INSN_START_WORDS]; uintptr_t host_pc = (uintptr_t)tb->tc.ptr; CPUArchState *env = cpu->env_ptr; const uint8_t *p = tb->tc.ptr + tb->tc.size; @@ -XXX,XX +XXX,XX @@ static int cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb, return -1; } + memset(data, 0, sizeof(data)); + if (!TARGET_TB_PCREL) { + data[0] = tb_pc(tb); + } + /* Reconstruct the stored insn data while looking for the point at which the end of the insn exceeds the searched_pc. */ for (i = 0; i < num_insns; ++i) { @@ -XXX,XX +XXX,XX @@ static bool tb_cmp(const void *ap, const void *bp) const TranslationBlock *a = ap; const TranslationBlock *b = bp; - return tb_pc(a) == tb_pc(b) && - a->cs_base == b->cs_base && - a->flags == b->flags && - (tb_cflags(a) & ~CF_INVALID) == (tb_cflags(b) & ~CF_INVALID) && - a->trace_vcpu_dstate == b->trace_vcpu_dstate && - a->page_addr[0] == b->page_addr[0] && - a->page_addr[1] == b->page_addr[1]; + return ((TARGET_TB_PCREL || tb_pc(a) == tb_pc(b)) && + a->cs_base == b->cs_base && + a->flags == b->flags && + (tb_cflags(a) & ~CF_INVALID) == (tb_cflags(b) & ~CF_INVALID) && + a->trace_vcpu_dstate == b->trace_vcpu_dstate && + a->page_addr[0] == b->page_addr[0] && + a->page_addr[1] == b->page_addr[1]); } void tb_htable_init(void) @@ -XXX,XX +XXX,XX @@ static inline void tb_jmp_unlink(TranslationBlock *dest) qemu_spin_unlock(&dest->jmp_lock); } +static void tb_jmp_cache_inval_tb(TranslationBlock *tb) +{ + CPUState *cpu; + + if (TARGET_TB_PCREL) { + /* A TB may be at any virtual address */ + CPU_FOREACH(cpu) { + tcg_flush_jmp_cache(cpu); + } + } else { + uint32_t h = tb_jmp_cache_hash_func(tb_pc(tb)); + + CPU_FOREACH(cpu) { + CPUJumpCache *jc = cpu->tb_jmp_cache; + + if (qatomic_read(&jc->array[h].tb) == tb) { + qatomic_set(&jc->array[h].tb, NULL); + } + } + } +} + /* * In user-mode, call with mmap_lock held. * In !user-mode, if @rm_from_page_list is set, call with the TB's pages' @@ -XXX,XX +XXX,XX @@ static inline void tb_jmp_unlink(TranslationBlock *dest) */ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list) { - CPUState *cpu; PageDesc *p; uint32_t h; tb_page_addr_t phys_pc; @@ -XXX,XX +XXX,XX @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list) /* remove the TB from the hash list */ phys_pc = tb->page_addr[0]; - h = tb_hash_func(phys_pc, tb_pc(tb), tb->flags, orig_cflags, - tb->trace_vcpu_dstate); + h = tb_hash_func(phys_pc, (TARGET_TB_PCREL ? 0 : tb_pc(tb)), + tb->flags, orig_cflags, tb->trace_vcpu_dstate); if (!qht_remove(&tb_ctx.htable, tb, h)) { return; } @@ -XXX,XX +XXX,XX @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list) } /* remove the TB from the hash list */ - h = tb_jmp_cache_hash_func(tb->pc); - CPU_FOREACH(cpu) { - CPUJumpCache *jc = cpu->tb_jmp_cache; - if (qatomic_read(&jc->array[h].tb) == tb) { - qatomic_set(&jc->array[h].tb, NULL); - } - } + tb_jmp_cache_inval_tb(tb); /* suppress this TB from the two jump lists */ tb_remove_from_jmp_list(tb, 0); @@ -XXX,XX +XXX,XX @@ tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, } /* add in the hash table */ - h = tb_hash_func(phys_pc, tb_pc(tb), tb->flags, tb->cflags, - tb->trace_vcpu_dstate); + h = tb_hash_func(phys_pc, (TARGET_TB_PCREL ? 0 : tb_pc(tb)), + tb->flags, tb->cflags, tb->trace_vcpu_dstate); qht_insert(&tb_ctx.htable, tb, h, &existing_tb); /* remove TB from the page(s) if we couldn't insert it */ @@ -XXX,XX +XXX,XX @@ TranslationBlock *tb_gen_code(CPUState *cpu, gen_code_buf = tcg_ctx->code_gen_ptr; tb->tc.ptr = tcg_splitwx_to_rx(gen_code_buf); +#if !TARGET_TB_PCREL tb->pc = pc; +#endif tb->cs_base = cs_base; tb->flags = flags; tb->cflags = cflags; -- 2.34.1 From: Leandro Lupori <leandro.lupori@eldorado.org.br> PowerPC64 processors handle direct branches better than indirect ones, resulting in less stalled cycles and branch misses. However, PPC's tb_target_set_jmp_target() was only using direct branches for 16-bit jumps, while PowerPC64's unconditional branch instructions are able to handle displacements of up to 26 bits. To take advantage of this, now jumps whose displacements fit in between 17 and 26 bits are also converted to direct branches. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Leandro Lupori <leandro.lupori@eldorado.org.br> [rth: Expanded some commentary.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- tcg/ppc/tcg-target.c.inc | 119 +++++++++++++++++++++++++++++---------- 1 file changed, 88 insertions(+), 31 deletions(-) diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index XXXXXXX..XXXXXXX 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -XXX,XX +XXX,XX @@ static void tcg_out_mb(TCGContext *s, TCGArg a0) tcg_out32(s, insn); } +static inline uint64_t make_pair(tcg_insn_unit i1, tcg_insn_unit i2) +{ + if (HOST_BIG_ENDIAN) { + return (uint64_t)i1 << 32 | i2; + } + return (uint64_t)i2 << 32 | i1; +} + +static inline void ppc64_replace2(uintptr_t rx, uintptr_t rw, + tcg_insn_unit i0, tcg_insn_unit i1) +{ +#if TCG_TARGET_REG_BITS == 64 + qatomic_set((uint64_t *)rw, make_pair(i0, i1)); + flush_idcache_range(rx, rw, 8); +#else + qemu_build_not_reached(); +#endif +} + +static inline void ppc64_replace4(uintptr_t rx, uintptr_t rw, + tcg_insn_unit i0, tcg_insn_unit i1, + tcg_insn_unit i2, tcg_insn_unit i3) +{ + uint64_t p[2]; + + p[!HOST_BIG_ENDIAN] = make_pair(i0, i1); + p[HOST_BIG_ENDIAN] = make_pair(i2, i3); + + /* + * There's no convenient way to get the compiler to allocate a pair + * of registers at an even index, so copy into r6/r7 and clobber. + */ + asm("mr %%r6, %1\n\t" + "mr %%r7, %2\n\t" + "stq %%r6, %0" + : "=Q"(*(__int128 *)rw) : "r"(p[0]), "r"(p[1]) : "r6", "r7"); + flush_idcache_range(rx, rw, 16); +} + void tb_target_set_jmp_target(uintptr_t tc_ptr, uintptr_t jmp_rx, uintptr_t jmp_rw, uintptr_t addr) { - if (TCG_TARGET_REG_BITS == 64) { - tcg_insn_unit i1, i2; - intptr_t tb_diff = addr - tc_ptr; - intptr_t br_diff = addr - (jmp_rx + 4); - uint64_t pair; + tcg_insn_unit i0, i1, i2, i3; + intptr_t tb_diff = addr - tc_ptr; + intptr_t br_diff = addr - (jmp_rx + 4); + intptr_t lo, hi; - /* This does not exercise the range of the branch, but we do - still need to be able to load the new value of TCG_REG_TB. - But this does still happen quite often. */ - if (tb_diff == (int16_t)tb_diff) { - i1 = ADDI | TAI(TCG_REG_TB, TCG_REG_TB, tb_diff); - i2 = B | (br_diff & 0x3fffffc); - } else { - intptr_t lo = (int16_t)tb_diff; - intptr_t hi = (int32_t)(tb_diff - lo); - assert(tb_diff == hi + lo); - i1 = ADDIS | TAI(TCG_REG_TB, TCG_REG_TB, hi >> 16); - i2 = ADDI | TAI(TCG_REG_TB, TCG_REG_TB, lo); - } -#if HOST_BIG_ENDIAN - pair = (uint64_t)i1 << 32 | i2; -#else - pair = (uint64_t)i2 << 32 | i1; -#endif - - /* As per the enclosing if, this is ppc64. Avoid the _Static_assert - within qatomic_set that would fail to build a ppc32 host. */ - qatomic_set__nocheck((uint64_t *)jmp_rw, pair); - flush_idcache_range(jmp_rx, jmp_rw, 8); - } else { + if (TCG_TARGET_REG_BITS == 32) { intptr_t diff = addr - jmp_rx; tcg_debug_assert(in_range_b(diff)); qatomic_set((uint32_t *)jmp_rw, B | (diff & 0x3fffffc)); flush_idcache_range(jmp_rx, jmp_rw, 4); + return; } + + /* + * For 16-bit displacements, we can use a single add + branch. + * This happens quite often. + */ + if (tb_diff == (int16_t)tb_diff) { + i0 = ADDI | TAI(TCG_REG_TB, TCG_REG_TB, tb_diff); + i1 = B | (br_diff & 0x3fffffc); + ppc64_replace2(jmp_rx, jmp_rw, i0, i1); + return; + } + + lo = (int16_t)tb_diff; + hi = (int32_t)(tb_diff - lo); + assert(tb_diff == hi + lo); + i0 = ADDIS | TAI(TCG_REG_TB, TCG_REG_TB, hi >> 16); + i1 = ADDI | TAI(TCG_REG_TB, TCG_REG_TB, lo); + + /* + * Without stq from 2.07, we can only update two insns, + * and those must be the ones that load the target address. + */ + if (!have_isa_2_07) { + ppc64_replace2(jmp_rx, jmp_rw, i0, i1); + return; + } + + /* + * For 26-bit displacements, we can use a direct branch. + * Otherwise we still need the indirect branch, which we + * must restore after a potential direct branch write. + */ + br_diff -= 4; + if (in_range_b(br_diff)) { + i2 = B | (br_diff & 0x3fffffc); + i3 = NOP; + } else { + i2 = MTSPR | RS(TCG_REG_TB) | CTR; + i3 = BCCTR | BO_ALWAYS; + } + ppc64_replace4(jmp_rx, jmp_rw, i0, i1, i2, i3); } static void tcg_out_call_int(TCGContext *s, int lk, @@ -XXX,XX +XXX,XX @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, if (s->tb_jmp_insn_offset) { /* Direct jump. */ if (TCG_TARGET_REG_BITS == 64) { - /* Ensure the next insns are 8-byte aligned. */ - if ((uintptr_t)s->code_ptr & 7) { + /* Ensure the next insns are 8 or 16-byte aligned. */ + while ((uintptr_t)s->code_ptr & (have_isa_2_07 ? 15 : 7)) { tcg_out32(s, NOP); } s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s); -- 2.34.1 The value previously chosen overlaps GUSA_MASK. Rename all DELAY_SLOT_* and GUSA_* defines to emphasize that they are included in TB_FLAGs. Add aliases for the FPSCR and SR bits that are included in TB_FLAGS, so that we don't accidentally reassign those bits. Fixes: 4da06fb3062 ("target/sh4: Implement prctl_unalign_sigbus") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/856 Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/sh4/cpu.h | 56 +++++++++++++------------ linux-user/sh4/signal.c | 6 +-- target/sh4/cpu.c | 6 +-- target/sh4/helper.c | 6 +-- target/sh4/translate.c | 90 ++++++++++++++++++++++------------------- 5 files changed, 88 insertions(+), 76 deletions(-) diff --git a/target/sh4/cpu.h b/target/sh4/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/sh4/cpu.h +++ b/target/sh4/cpu.h @@ -XXX,XX +XXX,XX @@ #define FPSCR_RM_NEAREST (0 << 0) #define FPSCR_RM_ZERO (1 << 0) -#define DELAY_SLOT_MASK 0x7 -#define DELAY_SLOT (1 << 0) -#define DELAY_SLOT_CONDITIONAL (1 << 1) -#define DELAY_SLOT_RTE (1 << 2) +#define TB_FLAG_DELAY_SLOT (1 << 0) +#define TB_FLAG_DELAY_SLOT_COND (1 << 1) +#define TB_FLAG_DELAY_SLOT_RTE (1 << 2) +#define TB_FLAG_PENDING_MOVCA (1 << 3) +#define TB_FLAG_GUSA_SHIFT 4 /* [11:4] */ +#define TB_FLAG_GUSA_EXCLUSIVE (1 << 12) +#define TB_FLAG_UNALIGN (1 << 13) +#define TB_FLAG_SR_FD (1 << SR_FD) /* 15 */ +#define TB_FLAG_FPSCR_PR FPSCR_PR /* 19 */ +#define TB_FLAG_FPSCR_SZ FPSCR_SZ /* 20 */ +#define TB_FLAG_FPSCR_FR FPSCR_FR /* 21 */ +#define TB_FLAG_SR_RB (1 << SR_RB) /* 29 */ +#define TB_FLAG_SR_MD (1 << SR_MD) /* 30 */ -#define TB_FLAG_PENDING_MOVCA (1 << 3) -#define TB_FLAG_UNALIGN (1 << 4) - -#define GUSA_SHIFT 4 -#ifdef CONFIG_USER_ONLY -#define GUSA_EXCLUSIVE (1 << 12) -#define GUSA_MASK ((0xff << GUSA_SHIFT) | GUSA_EXCLUSIVE) -#else -/* Provide dummy versions of the above to allow tests against tbflags - to be elided while avoiding ifdefs. */ -#define GUSA_EXCLUSIVE 0 -#define GUSA_MASK 0 -#endif - -#define TB_FLAG_ENVFLAGS_MASK (DELAY_SLOT_MASK | GUSA_MASK) +#define TB_FLAG_DELAY_SLOT_MASK (TB_FLAG_DELAY_SLOT | \ + TB_FLAG_DELAY_SLOT_COND | \ + TB_FLAG_DELAY_SLOT_RTE) +#define TB_FLAG_GUSA_MASK ((0xff << TB_FLAG_GUSA_SHIFT) | \ + TB_FLAG_GUSA_EXCLUSIVE) +#define TB_FLAG_FPSCR_MASK (TB_FLAG_FPSCR_PR | \ + TB_FLAG_FPSCR_SZ | \ + TB_FLAG_FPSCR_FR) +#define TB_FLAG_SR_MASK (TB_FLAG_SR_FD | \ + TB_FLAG_SR_RB | \ + TB_FLAG_SR_MD) +#define TB_FLAG_ENVFLAGS_MASK (TB_FLAG_DELAY_SLOT_MASK | \ + TB_FLAG_GUSA_MASK) typedef struct tlb_t { uint32_t vpn; /* virtual page number */ @@ -XXX,XX +XXX,XX @@ static inline int cpu_mmu_index (CPUSH4State *env, bool ifetch) { /* The instruction in a RTE delay slot is fetched in privileged mode, but executed in user mode. */ - if (ifetch && (env->flags & DELAY_SLOT_RTE)) { + if (ifetch && (env->flags & TB_FLAG_DELAY_SLOT_RTE)) { return 0; } else { return (env->sr & (1u << SR_MD)) == 0 ? 1 : 0; @@ -XXX,XX +XXX,XX @@ static inline void cpu_get_tb_cpu_state(CPUSH4State *env, target_ulong *pc, { *pc = env->pc; /* For a gUSA region, notice the end of the region. */ - *cs_base = env->flags & GUSA_MASK ? env->gregs[0] : 0; - *flags = env->flags /* TB_FLAG_ENVFLAGS_MASK: bits 0-2, 4-12 */ - | (env->fpscr & (FPSCR_FR | FPSCR_SZ | FPSCR_PR)) /* Bits 19-21 */ - | (env->sr & ((1u << SR_MD) | (1u << SR_RB))) /* Bits 29-30 */ - | (env->sr & (1u << SR_FD)) /* Bit 15 */ + *cs_base = env->flags & TB_FLAG_GUSA_MASK ? env->gregs[0] : 0; + *flags = env->flags + | (env->fpscr & TB_FLAG_FPSCR_MASK) + | (env->sr & TB_FLAG_SR_MASK) | (env->movcal_backup ? TB_FLAG_PENDING_MOVCA : 0); /* Bit 3 */ #ifdef CONFIG_USER_ONLY *flags |= TB_FLAG_UNALIGN * !env_cpu(env)->prctl_unalign_sigbus; diff --git a/linux-user/sh4/signal.c b/linux-user/sh4/signal.c index XXXXXXX..XXXXXXX 100644 --- a/linux-user/sh4/signal.c +++ b/linux-user/sh4/signal.c @@ -XXX,XX +XXX,XX @@ static void restore_sigcontext(CPUSH4State *regs, struct target_sigcontext *sc) __get_user(regs->fpul, &sc->sc_fpul); regs->tra = -1; /* disable syscall checks */ - regs->flags &= ~(DELAY_SLOT_MASK | GUSA_MASK); + regs->flags = 0; } void setup_frame(int sig, struct target_sigaction *ka, @@ -XXX,XX +XXX,XX @@ void setup_frame(int sig, struct target_sigaction *ka, regs->gregs[5] = 0; regs->gregs[6] = frame_addr += offsetof(typeof(*frame), sc); regs->pc = (unsigned long) ka->_sa_handler; - regs->flags &= ~(DELAY_SLOT_MASK | GUSA_MASK); + regs->flags &= ~(TB_FLAG_DELAY_SLOT_MASK | TB_FLAG_GUSA_MASK); unlock_user_struct(frame, frame_addr, 1); return; @@ -XXX,XX +XXX,XX @@ void setup_rt_frame(int sig, struct target_sigaction *ka, regs->gregs[5] = frame_addr + offsetof(typeof(*frame), info); regs->gregs[6] = frame_addr + offsetof(typeof(*frame), uc); regs->pc = (unsigned long) ka->_sa_handler; - regs->flags &= ~(DELAY_SLOT_MASK | GUSA_MASK); + regs->flags &= ~(TB_FLAG_DELAY_SLOT_MASK | TB_FLAG_GUSA_MASK); unlock_user_struct(frame, frame_addr, 1); return; diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/sh4/cpu.c +++ b/target/sh4/cpu.c @@ -XXX,XX +XXX,XX @@ static void superh_cpu_synchronize_from_tb(CPUState *cs, SuperHCPU *cpu = SUPERH_CPU(cs); cpu->env.pc = tb_pc(tb); - cpu->env.flags = tb->flags & TB_FLAG_ENVFLAGS_MASK; + cpu->env.flags = tb->flags; } #ifndef CONFIG_USER_ONLY @@ -XXX,XX +XXX,XX @@ static bool superh_io_recompile_replay_branch(CPUState *cs, SuperHCPU *cpu = SUPERH_CPU(cs); CPUSH4State *env = &cpu->env; - if ((env->flags & ((DELAY_SLOT | DELAY_SLOT_CONDITIONAL))) != 0 + if ((env->flags & (TB_FLAG_DELAY_SLOT | TB_FLAG_DELAY_SLOT_COND)) && env->pc != tb_pc(tb)) { env->pc -= 2; - env->flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); + env->flags &= ~(TB_FLAG_DELAY_SLOT | TB_FLAG_DELAY_SLOT_COND); return true; } return false; diff --git a/target/sh4/helper.c b/target/sh4/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/sh4/helper.c +++ b/target/sh4/helper.c @@ -XXX,XX +XXX,XX @@ void superh_cpu_do_interrupt(CPUState *cs) env->sr |= (1u << SR_BL) | (1u << SR_MD) | (1u << SR_RB); env->lock_addr = -1; - if (env->flags & DELAY_SLOT_MASK) { + if (env->flags & TB_FLAG_DELAY_SLOT_MASK) { /* Branch instruction should be executed again before delay slot. */ env->spc -= 2; /* Clear flags for exception/interrupt routine. */ - env->flags &= ~DELAY_SLOT_MASK; + env->flags &= ~TB_FLAG_DELAY_SLOT_MASK; } if (do_exp) { @@ -XXX,XX +XXX,XX @@ bool superh_cpu_exec_interrupt(CPUState *cs, int interrupt_request) CPUSH4State *env = &cpu->env; /* Delay slots are indivisible, ignore interrupts */ - if (env->flags & DELAY_SLOT_MASK) { + if (env->flags & TB_FLAG_DELAY_SLOT_MASK) { return false; } else { superh_cpu_do_interrupt(cs); diff --git a/target/sh4/translate.c b/target/sh4/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/sh4/translate.c +++ b/target/sh4/translate.c @@ -XXX,XX +XXX,XX @@ void superh_cpu_dump_state(CPUState *cs, FILE *f, int flags) i, env->gregs[i], i + 1, env->gregs[i + 1], i + 2, env->gregs[i + 2], i + 3, env->gregs[i + 3]); } - if (env->flags & DELAY_SLOT) { + if (env->flags & TB_FLAG_DELAY_SLOT) { qemu_printf("in delay slot (delayed_pc=0x%08x)\n", env->delayed_pc); - } else if (env->flags & DELAY_SLOT_CONDITIONAL) { + } else if (env->flags & TB_FLAG_DELAY_SLOT_COND) { qemu_printf("in conditional delay slot (delayed_pc=0x%08x)\n", env->delayed_pc); - } else if (env->flags & DELAY_SLOT_RTE) { + } else if (env->flags & TB_FLAG_DELAY_SLOT_RTE) { qemu_fprintf(f, "in rte delay slot (delayed_pc=0x%08x)\n", env->delayed_pc); } @@ -XXX,XX +XXX,XX @@ static inline void gen_save_cpu_state(DisasContext *ctx, bool save_pc) static inline bool use_exit_tb(DisasContext *ctx) { - return (ctx->tbflags & GUSA_EXCLUSIVE) != 0; + return (ctx->tbflags & TB_FLAG_GUSA_EXCLUSIVE) != 0; } static bool use_goto_tb(DisasContext *ctx, target_ulong dest) @@ -XXX,XX +XXX,XX @@ static void gen_conditional_jump(DisasContext *ctx, target_ulong dest, TCGLabel *l1 = gen_new_label(); TCGCond cond_not_taken = jump_if_true ? TCG_COND_EQ : TCG_COND_NE; - if (ctx->tbflags & GUSA_EXCLUSIVE) { + if (ctx->tbflags & TB_FLAG_GUSA_EXCLUSIVE) { /* When in an exclusive region, we must continue to the end. Therefore, exit the region on a taken branch, but otherwise fall through to the next instruction. */ tcg_gen_brcondi_i32(cond_not_taken, cpu_sr_t, 0, l1); - tcg_gen_movi_i32(cpu_flags, ctx->envflags & ~GUSA_MASK); + tcg_gen_movi_i32(cpu_flags, ctx->envflags & ~TB_FLAG_GUSA_MASK); /* Note that this won't actually use a goto_tb opcode because we disallow it in use_goto_tb, but it handles exit + singlestep. */ gen_goto_tb(ctx, 0, dest); @@ -XXX,XX +XXX,XX @@ static void gen_delayed_conditional_jump(DisasContext * ctx) tcg_gen_mov_i32(ds, cpu_delayed_cond); tcg_gen_discard_i32(cpu_delayed_cond); - if (ctx->tbflags & GUSA_EXCLUSIVE) { + if (ctx->tbflags & TB_FLAG_GUSA_EXCLUSIVE) { /* When in an exclusive region, we must continue to the end. Therefore, exit the region on a taken branch, but otherwise fall through to the next instruction. */ tcg_gen_brcondi_i32(TCG_COND_EQ, ds, 0, l1); /* Leave the gUSA region. */ - tcg_gen_movi_i32(cpu_flags, ctx->envflags & ~GUSA_MASK); + tcg_gen_movi_i32(cpu_flags, ctx->envflags & ~TB_FLAG_GUSA_MASK); gen_jump(ctx); gen_set_label(l1); @@ -XXX,XX +XXX,XX @@ static inline void gen_store_fpr64(DisasContext *ctx, TCGv_i64 t, int reg) #define XHACK(x) ((((x) & 1 ) << 4) | ((x) & 0xe)) #define CHECK_NOT_DELAY_SLOT \ - if (ctx->envflags & DELAY_SLOT_MASK) { \ - goto do_illegal_slot; \ + if (ctx->envflags & TB_FLAG_DELAY_SLOT_MASK) { \ + goto do_illegal_slot; \ } #define CHECK_PRIVILEGED \ @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) case 0x000b: /* rts */ CHECK_NOT_DELAY_SLOT tcg_gen_mov_i32(cpu_delayed_pc, cpu_pr); - ctx->envflags |= DELAY_SLOT; + ctx->envflags |= TB_FLAG_DELAY_SLOT; ctx->delayed_pc = (uint32_t) - 1; return; case 0x0028: /* clrmac */ @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) CHECK_NOT_DELAY_SLOT gen_write_sr(cpu_ssr); tcg_gen_mov_i32(cpu_delayed_pc, cpu_spc); - ctx->envflags |= DELAY_SLOT_RTE; + ctx->envflags |= TB_FLAG_DELAY_SLOT_RTE; ctx->delayed_pc = (uint32_t) - 1; ctx->base.is_jmp = DISAS_STOP; return; @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) return; case 0xe000: /* mov #imm,Rn */ #ifdef CONFIG_USER_ONLY - /* Detect the start of a gUSA region. If so, update envflags - and end the TB. This will allow us to see the end of the - region (stored in R0) in the next TB. */ + /* + * Detect the start of a gUSA region (mov #-n, r15). + * If so, update envflags and end the TB. This will allow us + * to see the end of the region (stored in R0) in the next TB. + */ if (B11_8 == 15 && B7_0s < 0 && (tb_cflags(ctx->base.tb) & CF_PARALLEL)) { - ctx->envflags = deposit32(ctx->envflags, GUSA_SHIFT, 8, B7_0s); + ctx->envflags = + deposit32(ctx->envflags, TB_FLAG_GUSA_SHIFT, 8, B7_0s); ctx->base.is_jmp = DISAS_STOP; } #endif @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) case 0xa000: /* bra disp */ CHECK_NOT_DELAY_SLOT ctx->delayed_pc = ctx->base.pc_next + 4 + B11_0s * 2; - ctx->envflags |= DELAY_SLOT; + ctx->envflags |= TB_FLAG_DELAY_SLOT; return; case 0xb000: /* bsr disp */ CHECK_NOT_DELAY_SLOT tcg_gen_movi_i32(cpu_pr, ctx->base.pc_next + 4); ctx->delayed_pc = ctx->base.pc_next + 4 + B11_0s * 2; - ctx->envflags |= DELAY_SLOT; + ctx->envflags |= TB_FLAG_DELAY_SLOT; return; } @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) CHECK_NOT_DELAY_SLOT tcg_gen_xori_i32(cpu_delayed_cond, cpu_sr_t, 1); ctx->delayed_pc = ctx->base.pc_next + 4 + B7_0s * 2; - ctx->envflags |= DELAY_SLOT_CONDITIONAL; + ctx->envflags |= TB_FLAG_DELAY_SLOT_COND; return; case 0x8900: /* bt label */ CHECK_NOT_DELAY_SLOT @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) CHECK_NOT_DELAY_SLOT tcg_gen_mov_i32(cpu_delayed_cond, cpu_sr_t); ctx->delayed_pc = ctx->base.pc_next + 4 + B7_0s * 2; - ctx->envflags |= DELAY_SLOT_CONDITIONAL; + ctx->envflags |= TB_FLAG_DELAY_SLOT_COND; return; case 0x8800: /* cmp/eq #imm,R0 */ tcg_gen_setcondi_i32(TCG_COND_EQ, cpu_sr_t, REG(0), B7_0s); @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) case 0x0023: /* braf Rn */ CHECK_NOT_DELAY_SLOT tcg_gen_addi_i32(cpu_delayed_pc, REG(B11_8), ctx->base.pc_next + 4); - ctx->envflags |= DELAY_SLOT; + ctx->envflags |= TB_FLAG_DELAY_SLOT; ctx->delayed_pc = (uint32_t) - 1; return; case 0x0003: /* bsrf Rn */ CHECK_NOT_DELAY_SLOT tcg_gen_movi_i32(cpu_pr, ctx->base.pc_next + 4); tcg_gen_add_i32(cpu_delayed_pc, REG(B11_8), cpu_pr); - ctx->envflags |= DELAY_SLOT; + ctx->envflags |= TB_FLAG_DELAY_SLOT; ctx->delayed_pc = (uint32_t) - 1; return; case 0x4015: /* cmp/pl Rn */ @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) case 0x402b: /* jmp @Rn */ CHECK_NOT_DELAY_SLOT tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8)); - ctx->envflags |= DELAY_SLOT; + ctx->envflags |= TB_FLAG_DELAY_SLOT; ctx->delayed_pc = (uint32_t) - 1; return; case 0x400b: /* jsr @Rn */ CHECK_NOT_DELAY_SLOT tcg_gen_movi_i32(cpu_pr, ctx->base.pc_next + 4); tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8)); - ctx->envflags |= DELAY_SLOT; + ctx->envflags |= TB_FLAG_DELAY_SLOT; ctx->delayed_pc = (uint32_t) - 1; return; case 0x400e: /* ldc Rm,SR */ @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) fflush(stderr); #endif do_illegal: - if (ctx->envflags & DELAY_SLOT_MASK) { + if (ctx->envflags & TB_FLAG_DELAY_SLOT_MASK) { do_illegal_slot: gen_save_cpu_state(ctx, true); gen_helper_raise_slot_illegal_instruction(cpu_env); @@ -XXX,XX +XXX,XX @@ static void _decode_opc(DisasContext * ctx) do_fpu_disabled: gen_save_cpu_state(ctx, true); - if (ctx->envflags & DELAY_SLOT_MASK) { + if (ctx->envflags & TB_FLAG_DELAY_SLOT_MASK) { gen_helper_raise_slot_fpu_disable(cpu_env); } else { gen_helper_raise_fpu_disable(cpu_env); @@ -XXX,XX +XXX,XX @@ static void decode_opc(DisasContext * ctx) _decode_opc(ctx); - if (old_flags & DELAY_SLOT_MASK) { + if (old_flags & TB_FLAG_DELAY_SLOT_MASK) { /* go out of the delay slot */ - ctx->envflags &= ~DELAY_SLOT_MASK; + ctx->envflags &= ~TB_FLAG_DELAY_SLOT_MASK; /* When in an exclusive region, we must continue to the end for conditional branches. */ - if (ctx->tbflags & GUSA_EXCLUSIVE - && old_flags & DELAY_SLOT_CONDITIONAL) { + if (ctx->tbflags & TB_FLAG_GUSA_EXCLUSIVE + && old_flags & TB_FLAG_DELAY_SLOT_COND) { gen_delayed_conditional_jump(ctx); return; } /* Otherwise this is probably an invalid gUSA region. Drop the GUSA bits so the next TB doesn't see them. */ - ctx->envflags &= ~GUSA_MASK; + ctx->envflags &= ~TB_FLAG_GUSA_MASK; tcg_gen_movi_i32(cpu_flags, ctx->envflags); - if (old_flags & DELAY_SLOT_CONDITIONAL) { + if (old_flags & TB_FLAG_DELAY_SLOT_COND) { gen_delayed_conditional_jump(ctx); } else { gen_jump(ctx); @@ -XXX,XX +XXX,XX @@ static void decode_gusa(DisasContext *ctx, CPUSH4State *env) } /* The entire region has been translated. */ - ctx->envflags &= ~GUSA_MASK; + ctx->envflags &= ~TB_FLAG_GUSA_MASK; ctx->base.pc_next = pc_end; ctx->base.num_insns += max_insns - 1; return; @@ -XXX,XX +XXX,XX @@ static void decode_gusa(DisasContext *ctx, CPUSH4State *env) /* Restart with the EXCLUSIVE bit set, within a TB run via cpu_exec_step_atomic holding the exclusive lock. */ - ctx->envflags |= GUSA_EXCLUSIVE; + ctx->envflags |= TB_FLAG_GUSA_EXCLUSIVE; gen_save_cpu_state(ctx, false); gen_helper_exclusive(cpu_env); ctx->base.is_jmp = DISAS_NORETURN; @@ -XXX,XX +XXX,XX @@ static void sh4_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) (tbflags & (1 << SR_RB))) * 0x10; ctx->fbank = tbflags & FPSCR_FR ? 0x10 : 0; - if (tbflags & GUSA_MASK) { +#ifdef CONFIG_USER_ONLY + if (tbflags & TB_FLAG_GUSA_MASK) { + /* In gUSA exclusive region. */ uint32_t pc = ctx->base.pc_next; uint32_t pc_end = ctx->base.tb->cs_base; - int backup = sextract32(ctx->tbflags, GUSA_SHIFT, 8); + int backup = sextract32(ctx->tbflags, TB_FLAG_GUSA_SHIFT, 8); int max_insns = (pc_end - pc) / 2; if (pc != pc_end + backup || max_insns < 2) { /* This is a malformed gUSA region. Don't do anything special, since the interpreter is likely to get confused. */ - ctx->envflags &= ~GUSA_MASK; - } else if (tbflags & GUSA_EXCLUSIVE) { + ctx->envflags &= ~TB_FLAG_GUSA_MASK; + } else if (tbflags & TB_FLAG_GUSA_EXCLUSIVE) { /* Regardless of single-stepping or the end of the page, we must complete execution of the gUSA region while holding the exclusive lock. */ @@ -XXX,XX +XXX,XX @@ static void sh4_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) return; } } +#endif /* Since the ISA is fixed-width, we can bound by the number of instructions remaining on the page. */ @@ -XXX,XX +XXX,XX @@ static void sh4_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) DisasContext *ctx = container_of(dcbase, DisasContext, base); #ifdef CONFIG_USER_ONLY - if (unlikely(ctx->envflags & GUSA_MASK) - && !(ctx->envflags & GUSA_EXCLUSIVE)) { + if (unlikely(ctx->envflags & TB_FLAG_GUSA_MASK) + && !(ctx->envflags & TB_FLAG_GUSA_EXCLUSIVE)) { /* We're in an gUSA region, and we have not already fallen back on using an exclusive region. Attempt to parse the region into a single supported atomic operation. Failure @@ -XXX,XX +XXX,XX @@ static void sh4_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs) { DisasContext *ctx = container_of(dcbase, DisasContext, base); - if (ctx->tbflags & GUSA_EXCLUSIVE) { + if (ctx->tbflags & TB_FLAG_GUSA_EXCLUSIVE) { /* Ending the region of exclusivity. Clear the bits. */ - ctx->envflags &= ~GUSA_MASK; + ctx->envflags &= ~TB_FLAG_GUSA_MASK; } switch (ctx->base.is_jmp) { -- 2.34.1 The following changes since commit 627634031092e1514f363fd8659a579398de0f0e: Merge tag 'buildsys-qom-qdev-ui-20230227' of https://github.com/philmd/qemu into staging (2023-02-28 15:09:18 +0000) are available in the Git repository at: https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20230228 for you to fetch changes up to c7fbf10db8718d2eba87712bc3410b671157a377: tcg: Update docs/devel/tcg-ops.rst for temporary changes (2023-02-28 10:36:19 -1000) ---------------------------------------------------------------- helper-head: Add fpu/softfloat-types.h softmmu: Use memmove in flatview_write_continue tcg: Add sign param to probe_access_flags, probe_access_full tcg: Convert TARGET_TB_PCREL to CF_PCREL tcg: Simplify temporary lifetimes for translators ---------------------------------------------------------------- Akihiko Odaki (1): softmmu: Use memmove in flatview_write_continue Anton Johansson via (27): include/exec: Introduce `CF_PCREL` target/i386: set `CF_PCREL` in `x86_cpu_realizefn` target/arm: set `CF_PCREL` in `arm_cpu_realizefn` accel/tcg: Replace `TARGET_TB_PCREL` with `CF_PCREL` include/exec: Replace `TARGET_TB_PCREL` with `CF_PCREL` target/arm: Replace `TARGET_TB_PCREL` with `CF_PCREL` target/i386: Replace `TARGET_TB_PCREL` with `CF_PCREL` include/exec: Remove `TARGET_TB_PCREL` define target/arm: Remove `TARGET_TB_PCREL` define target/i386: Remove `TARGET_TB_PCREL` define accel/tcg: Move jmp-cache `CF_PCREL` checks to caller accel/tcg: Replace `tb_pc()` with `tb->pc` target/tricore: Replace `tb_pc()` with `tb->pc` target/sparc: Replace `tb_pc()` with `tb->pc` target/sh4: Replace `tb_pc()` with `tb->pc` target/rx: Replace `tb_pc()` with `tb->pc` target/riscv: Replace `tb_pc()` with `tb->pc` target/openrisc: Replace `tb_pc()` with `tb->pc` target/mips: Replace `tb_pc()` with `tb->pc` target/microblaze: Replace `tb_pc()` with `tb->pc` target/loongarch: Replace `tb_pc()` with `tb->pc` target/i386: Replace `tb_pc()` with `tb->pc` target/hppa: Replace `tb_pc()` with `tb->pc` target/hexagon: Replace `tb_pc()` with `tb->pc` target/avr: Replace `tb_pc()` with `tb->pc` target/arm: Replace `tb_pc()` with `tb->pc` include/exec: Remove `tb_pc()` Daniel Henrique Barboza (1): accel/tcg: Add 'size' param to probe_access_flags() Philippe Mathieu-Daudé (1): exec/helper-head: Include missing "fpu/softfloat-types.h" header Richard Henderson (32): accel/tcg: Add 'size' param to probe_access_full tcg: Adjust TCGContext.temps_in_use check accel/tcg: Pass max_insn to gen_intermediate_code by pointer accel/tcg: Use more accurate max_insns for tb_overflow tcg: Remove branch-to-next regardless of reference count tcg: Rename TEMP_LOCAL to TEMP_TB tcg: Use noinline for major tcg_gen_code subroutines tcg: Add liveness_pass_0 tcg: Remove TEMP_NORMAL tcg: Pass TCGTempKind to tcg_temp_new_internal tcg: Use tcg_constant_i32 in tcg_gen_io_start tcg: Add tcg_gen_movi_ptr tcg: Add tcg_temp_ebb_new_{i32,i64,ptr} tcg: Use tcg_temp_ebb_new_* in tcg/ tcg: Use tcg_constant_ptr in do_dup accel/tcg/plugin: Use tcg_temp_ebb_* accel/tcg/plugin: Tidy plugin_gen_disable_mem_helpers tcg: Don't re-use TEMP_TB temporaries tcg: Change default temp lifetime to TEMP_TB target/arm: Drop copies in gen_sve_{ldr,str} target/arm: Don't use tcg_temp_local_new_* target/cris: Don't use tcg_temp_local_new target/hexagon: Don't use tcg_temp_local_new_* target/hexagon/idef-parser: Drop gen_tmp_local target/hppa: Don't use tcg_temp_local_new target/i386: Don't use tcg_temp_local_new target/mips: Don't use tcg_temp_local_new target/ppc: Don't use tcg_temp_local_new target/xtensa: Don't use tcg_temp_local_new_* exec/gen-icount: Don't use tcg_temp_local_new_i32 tcg: Remove tcg_temp_local_new_*, tcg_const_local_* tcg: Update docs/devel/tcg-ops.rst for temporary changes docs/devel/tcg-ops.rst | 230 +++++++++++++---------- target/hexagon/idef-parser/README.rst | 4 +- accel/tcg/internal.h | 10 +- accel/tcg/tb-jmp-cache.h | 42 +---- include/exec/cpu-defs.h | 3 - include/exec/exec-all.h | 26 +-- include/exec/gen-icount.h | 12 +- include/exec/helper-head.h | 2 + include/exec/translator.h | 4 +- include/tcg/tcg-op.h | 7 +- include/tcg/tcg.h | 64 ++++--- target/arm/cpu-param.h | 2 - target/arm/tcg/translate-a64.h | 1 - target/arm/tcg/translate.h | 2 +- target/hexagon/gen_tcg.h | 4 +- target/i386/cpu-param.h | 4 - accel/stubs/tcg-stub.c | 2 +- accel/tcg/cpu-exec.c | 62 ++++-- accel/tcg/cputlb.c | 21 ++- accel/tcg/perf.c | 2 +- accel/tcg/plugin-gen.c | 32 ++-- accel/tcg/tb-maint.c | 10 +- accel/tcg/translate-all.c | 18 +- accel/tcg/translator.c | 6 +- accel/tcg/user-exec.c | 5 +- semihosting/uaccess.c | 2 +- softmmu/physmem.c | 2 +- target/alpha/translate.c | 2 +- target/arm/cpu.c | 17 +- target/arm/ptw.c | 4 +- target/arm/tcg/mte_helper.c | 4 +- target/arm/tcg/sve_helper.c | 4 +- target/arm/tcg/translate-a64.c | 16 +- target/arm/tcg/translate-sve.c | 38 +--- target/arm/tcg/translate.c | 14 +- target/avr/cpu.c | 3 +- target/avr/translate.c | 2 +- target/cris/translate.c | 8 +- target/hexagon/cpu.c | 4 +- target/hexagon/genptr.c | 16 +- target/hexagon/idef-parser/parser-helpers.c | 26 +-- target/hexagon/translate.c | 4 +- target/hppa/cpu.c | 8 +- target/hppa/translate.c | 5 +- target/i386/cpu.c | 5 + target/i386/helper.c | 2 +- target/i386/tcg/sysemu/excp_helper.c | 4 +- target/i386/tcg/tcg-cpu.c | 8 +- target/i386/tcg/translate.c | 55 +++--- target/loongarch/cpu.c | 6 +- target/loongarch/translate.c | 2 +- target/m68k/translate.c | 2 +- target/microblaze/cpu.c | 4 +- target/microblaze/translate.c | 2 +- target/mips/tcg/exception.c | 3 +- target/mips/tcg/sysemu/special_helper.c | 2 +- target/mips/tcg/translate.c | 59 ++---- target/nios2/translate.c | 2 +- target/openrisc/cpu.c | 4 +- target/openrisc/translate.c | 2 +- target/ppc/translate.c | 8 +- target/riscv/cpu.c | 7 +- target/riscv/translate.c | 2 +- target/rx/cpu.c | 3 +- target/rx/translate.c | 2 +- target/s390x/tcg/mem_helper.c | 2 +- target/s390x/tcg/translate.c | 2 +- target/sh4/cpu.c | 6 +- target/sh4/translate.c | 2 +- target/sparc/cpu.c | 4 +- target/sparc/translate.c | 2 +- target/tricore/cpu.c | 3 +- target/tricore/translate.c | 2 +- target/xtensa/translate.c | 18 +- tcg/optimize.c | 2 +- tcg/tcg-op-gvec.c | 189 ++++++++++--------- tcg/tcg-op.c | 258 ++++++++++++------------- tcg/tcg.c | 280 ++++++++++++++++------------ target/cris/translate_v10.c.inc | 10 +- target/mips/tcg/nanomips_translate.c.inc | 4 +- target/ppc/translate/spe-impl.c.inc | 8 +- target/ppc/translate/vmx-impl.c.inc | 4 +- target/hexagon/README | 8 +- target/hexagon/gen_tcg_funcs.py | 18 +- 84 files changed, 870 insertions(+), 890 deletions(-) From: Philippe Mathieu-Daudé <philmd@linaro.org> 'dh_ctype_f32' is defined as 'float32', itself declared in "fpu/softfloat-types.h". Include this header to avoid when refactoring other headers: In file included from include/exec/helper-proto.h:7, from include/tcg/tcg-op.h:29, from ../../tcg/tcg-op-vec.c:22: include/exec/helper-head.h:44:22: error: unknown type name ‘float32’; did you mean ‘_Float32’? 44 | #define dh_ctype_f32 float32 | ^~~~~~~ Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20221216225202.25664-1-philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/helper-head.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/exec/helper-head.h b/include/exec/helper-head.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/helper-head.h +++ b/include/exec/helper-head.h @@ -XXX,XX +XXX,XX @@ #ifndef EXEC_HELPER_HEAD_H #define EXEC_HELPER_HEAD_H +#include "fpu/softfloat-types.h" + #define HELPER(name) glue(helper_, name) /* Some types that make sense in C, but not for TCG. */ -- 2.34.1 From: Akihiko Odaki <akihiko.odaki@daynix.com> We found a case where the source passed to flatview_write_continue() may overlap with the destination when fuzzing igb, a new proposed network device with sanitizers. igb uses pci_dma_map() to get Tx packet, and pci_dma_write() to write Rx buffer. While pci_dma_write() is usually used to write data from memory not mapped to the guest, if igb is configured to perform loopback, the data will be sourced from the guest memory. The source and destination can overlap and the usage of memcpy() will be invalid in such a case. While we do not really have to deal with such an invalid request for igb, detecting the overlap in igb code beforehand requires complex code, and only covers this specific case. Instead, just replace memcpy() with memmove() to tolerate overlaps. Using memmove() will slightly damage the performance as it will need to check overlaps before using SIMD instructions for copying, but the cost should be negligible, considering the inherent complexity of flatview_write_continue(). The test cases generated by the fuzzer is available at: https://patchew.org/QEMU/20230129053316.1071513-1-alxndr@bu.edu/ The fixed test case is: fuzz/crash_47dfe62d9f911bf523ff48cd441b61c0013ed805 Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Acked-by: Alexander Bulekov <alxndr@bu.edu> Acked-by: David Hildenbrand <david@redhat.com> Message-Id: <20230131030155.18932-1-akihiko.odaki@daynix.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- softmmu/physmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/softmmu/physmem.c b/softmmu/physmem.c index XXXXXXX..XXXXXXX 100644 --- a/softmmu/physmem.c +++ b/softmmu/physmem.c @@ -XXX,XX +XXX,XX @@ static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr, } else { /* RAM case */ ram_ptr = qemu_ram_ptr_length(mr->ram_block, addr1, &l, false); - memcpy(ram_ptr, buf, l); + memmove(ram_ptr, buf, l); invalidate_and_set_dirty(mr, addr1, l); } -- 2.34.1 From: Daniel Henrique Barboza <dbarboza@ventanamicro.com> probe_access_flags() as it is today uses probe_access_full(), which in turn uses probe_access_internal() with size = 0. probe_access_internal() then uses the size to call the tlb_fill() callback for the given CPU. This size param ('fault_size' as probe_access_internal() calls it) is ignored by most existing .tlb_fill callback implementations, e.g. arm_cpu_tlb_fill(), ppc_cpu_tlb_fill(), x86_cpu_tlb_fill() and mips_cpu_tlb_fill() to name a few. But RISC-V riscv_cpu_tlb_fill() actually uses it. The 'size' parameter is used to check for PMP (Physical Memory Protection) access. This is necessary because PMP does not make any guarantees about all the bytes of the same page having the same permissions, i.e. the same page can have different PMP properties, so we're forced to make sub-page range checks. To allow RISC-V emulation to do a probe_acess_flags() that covers PMP, we need to either add a 'size' param to the existing probe_acess_flags() or create a new interface (e.g. probe_access_range_flags). There are quite a few probe_* APIs already, so let's add a 'size' param to probe_access_flags() and re-use this API. This is done by open coding what probe_access_full() does inside probe_acess_flags() and passing the 'size' param to probe_acess_internal(). Existing probe_access_flags() callers use size = 0 to not change their current API usage. 'size' is asserted to enforce single page access like probe_access() already does. No behavioral changes intended. Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-Id: <20230223234427.521114-2-dbarboza@ventanamicro.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/exec-all.h | 3 ++- accel/stubs/tcg-stub.c | 2 +- accel/tcg/cputlb.c | 17 ++++++++++++++--- accel/tcg/user-exec.c | 5 +++-- semihosting/uaccess.c | 2 +- target/arm/ptw.c | 2 +- target/arm/tcg/sve_helper.c | 2 +- target/s390x/tcg/mem_helper.c | 2 +- 8 files changed, 24 insertions(+), 11 deletions(-) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ static inline void *probe_read(CPUArchState *env, target_ulong addr, int size, * probe_access_flags: * @env: CPUArchState * @addr: guest virtual address to look up + * @size: size of the access * @access_type: read, write or execute permission * @mmu_idx: MMU index to use for lookup * @nonfault: suppress the fault @@ -XXX,XX +XXX,XX @@ static inline void *probe_read(CPUArchState *env, target_ulong addr, int size, * Do handle clean pages, so exclude TLB_NOTDIRY from the returned flags. * For simplicity, all "mmio-like" flags are folded to TLB_MMIO. */ -int probe_access_flags(CPUArchState *env, target_ulong addr, +int probe_access_flags(CPUArchState *env, target_ulong addr, int size, MMUAccessType access_type, int mmu_idx, bool nonfault, void **phost, uintptr_t retaddr); diff --git a/accel/stubs/tcg-stub.c b/accel/stubs/tcg-stub.c index XXXXXXX..XXXXXXX 100644 --- a/accel/stubs/tcg-stub.c +++ b/accel/stubs/tcg-stub.c @@ -XXX,XX +XXX,XX @@ void tcg_flush_jmp_cache(CPUState *cpu) { } -int probe_access_flags(CPUArchState *env, target_ulong addr, +int probe_access_flags(CPUArchState *env, target_ulong addr, int size, MMUAccessType access_type, int mmu_idx, bool nonfault, void **phost, uintptr_t retaddr) { diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ int probe_access_full(CPUArchState *env, target_ulong addr, return flags; } -int probe_access_flags(CPUArchState *env, target_ulong addr, +int probe_access_flags(CPUArchState *env, target_ulong addr, int size, MMUAccessType access_type, int mmu_idx, bool nonfault, void **phost, uintptr_t retaddr) { CPUTLBEntryFull *full; + int flags; - return probe_access_full(env, addr, access_type, mmu_idx, - nonfault, phost, &full, retaddr); + g_assert(-(addr | TARGET_PAGE_MASK) >= size); + + flags = probe_access_internal(env, addr, size, access_type, mmu_idx, + nonfault, phost, &full, retaddr); + + /* Handle clean RAM pages. */ + if (unlikely(flags & TLB_NOTDIRTY)) { + notdirty_write(env_cpu(env), addr, 1, full, retaddr); + flags &= ~TLB_NOTDIRTY; + } + + return flags; } void *probe_access(CPUArchState *env, target_ulong addr, int size, diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -XXX,XX +XXX,XX @@ static int probe_access_internal(CPUArchState *env, target_ulong addr, cpu_loop_exit_sigsegv(env_cpu(env), addr, access_type, maperr, ra); } -int probe_access_flags(CPUArchState *env, target_ulong addr, +int probe_access_flags(CPUArchState *env, target_ulong addr, int size, MMUAccessType access_type, int mmu_idx, bool nonfault, void **phost, uintptr_t ra) { int flags; - flags = probe_access_internal(env, addr, 0, access_type, nonfault, ra); + g_assert(-(addr | TARGET_PAGE_MASK) >= size); + flags = probe_access_internal(env, addr, size, access_type, nonfault, ra); *phost = flags ? NULL : g2h(env_cpu(env), addr); return flags; } diff --git a/semihosting/uaccess.c b/semihosting/uaccess.c index XXXXXXX..XXXXXXX 100644 --- a/semihosting/uaccess.c +++ b/semihosting/uaccess.c @@ -XXX,XX +XXX,XX @@ ssize_t softmmu_strlen_user(CPUArchState *env, target_ulong addr) /* Find the number of bytes remaining in the page. */ left_in_page = TARGET_PAGE_SIZE - (addr & ~TARGET_PAGE_MASK); - flags = probe_access_flags(env, addr, MMU_DATA_LOAD, + flags = probe_access_flags(env, addr, 0, MMU_DATA_LOAD, mmu_idx, true, &h, 0); if (flags & TLB_INVALID_MASK) { return -1; diff --git a/target/arm/ptw.c b/target/arm/ptw.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/ptw.c +++ b/target/arm/ptw.c @@ -XXX,XX +XXX,XX @@ static uint64_t arm_casq_ptw(CPUARMState *env, uint64_t old_val, void *discard; env->tlb_fi = fi; - flags = probe_access_flags(env, ptw->out_virt, MMU_DATA_STORE, + flags = probe_access_flags(env, ptw->out_virt, 0, MMU_DATA_STORE, arm_to_core_mmu_idx(ptw->in_ptw_idx), true, &discard, 0); env->tlb_fi = NULL; diff --git a/target/arm/tcg/sve_helper.c b/target/arm/tcg/sve_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/sve_helper.c +++ b/target/arm/tcg/sve_helper.c @@ -XXX,XX +XXX,XX @@ bool sve_probe_page(SVEHostPage *info, bool nofault, CPUARMState *env, addr = useronly_clean_ptr(addr); #ifdef CONFIG_USER_ONLY - flags = probe_access_flags(env, addr, access_type, mmu_idx, nofault, + flags = probe_access_flags(env, addr, 0, access_type, mmu_idx, nofault, &info->host, retaddr); #else CPUTLBEntryFull *full; diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/s390x/tcg/mem_helper.c +++ b/target/s390x/tcg/mem_helper.c @@ -XXX,XX +XXX,XX @@ static inline int s390_probe_access(CPUArchState *env, target_ulong addr, int mmu_idx, bool nonfault, void **phost, uintptr_t ra) { - int flags = probe_access_flags(env, addr, access_type, mmu_idx, + int flags = probe_access_flags(env, addr, 0, access_type, mmu_idx, nonfault, phost, ra); if (unlikely(flags & TLB_INVALID_MASK)) { -- 2.34.1 Change to match the recent change to probe_access_flags. All existing callers updated to supply 0, so no change in behaviour. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/exec-all.h | 2 +- accel/tcg/cputlb.c | 4 ++-- target/arm/ptw.c | 2 +- target/arm/tcg/mte_helper.c | 4 ++-- target/arm/tcg/sve_helper.c | 2 +- target/arm/tcg/translate-a64.c | 2 +- target/i386/tcg/sysemu/excp_helper.c | 4 ++-- 7 files changed, 10 insertions(+), 10 deletions(-) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ int probe_access_flags(CPUArchState *env, target_ulong addr, int size, * and must be consumed or copied immediately, before any further * access or changes to TLB @mmu_idx. */ -int probe_access_full(CPUArchState *env, target_ulong addr, +int probe_access_full(CPUArchState *env, target_ulong addr, int size, MMUAccessType access_type, int mmu_idx, bool nonfault, void **phost, CPUTLBEntryFull **pfull, uintptr_t retaddr); diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -XXX,XX +XXX,XX @@ static int probe_access_internal(CPUArchState *env, target_ulong addr, return flags; } -int probe_access_full(CPUArchState *env, target_ulong addr, +int probe_access_full(CPUArchState *env, target_ulong addr, int size, MMUAccessType access_type, int mmu_idx, bool nonfault, void **phost, CPUTLBEntryFull **pfull, uintptr_t retaddr) { - int flags = probe_access_internal(env, addr, 0, access_type, mmu_idx, + int flags = probe_access_internal(env, addr, size, access_type, mmu_idx, nonfault, phost, pfull, retaddr); /* Handle clean RAM pages. */ diff --git a/target/arm/ptw.c b/target/arm/ptw.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/ptw.c +++ b/target/arm/ptw.c @@ -XXX,XX +XXX,XX @@ static bool S1_ptw_translate(CPUARMState *env, S1Translate *ptw, int flags; env->tlb_fi = fi; - flags = probe_access_full(env, addr, MMU_DATA_LOAD, + flags = probe_access_full(env, addr, 0, MMU_DATA_LOAD, arm_to_core_mmu_idx(s2_mmu_idx), true, &ptw->out_host, &full, 0); env->tlb_fi = NULL; diff --git a/target/arm/tcg/mte_helper.c b/target/arm/tcg/mte_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/mte_helper.c +++ b/target/arm/tcg/mte_helper.c @@ -XXX,XX +XXX,XX @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, * valid. Indicate to probe_access_flags no-fault, then assert that * we received a valid page. */ - flags = probe_access_full(env, ptr, ptr_access, ptr_mmu_idx, + flags = probe_access_full(env, ptr, 0, ptr_access, ptr_mmu_idx, ra == 0, &host, &full, ra); assert(!(flags & TLB_INVALID_MASK)); @@ -XXX,XX +XXX,XX @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, */ in_page = -(ptr | TARGET_PAGE_MASK); if (unlikely(ptr_size > in_page)) { - flags |= probe_access_full(env, ptr + in_page, ptr_access, + flags |= probe_access_full(env, ptr + in_page, 0, ptr_access, ptr_mmu_idx, ra == 0, &host, &full, ra); assert(!(flags & TLB_INVALID_MASK)); } diff --git a/target/arm/tcg/sve_helper.c b/target/arm/tcg/sve_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/sve_helper.c +++ b/target/arm/tcg/sve_helper.c @@ -XXX,XX +XXX,XX @@ bool sve_probe_page(SVEHostPage *info, bool nofault, CPUARMState *env, &info->host, retaddr); #else CPUTLBEntryFull *full; - flags = probe_access_full(env, addr, access_type, mmu_idx, nofault, + flags = probe_access_full(env, addr, 0, access_type, mmu_idx, nofault, &info->host, &full, retaddr); #endif info->flags = flags; diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -XXX,XX +XXX,XX @@ static bool is_guarded_page(CPUARMState *env, DisasContext *s) * that the TLB entry must be present and valid, and thus this * access will never raise an exception. */ - flags = probe_access_full(env, addr, MMU_INST_FETCH, mmu_idx, + flags = probe_access_full(env, addr, 0, MMU_INST_FETCH, mmu_idx, false, &host, &full, 0); assert(!(flags & TLB_INVALID_MASK)); diff --git a/target/i386/tcg/sysemu/excp_helper.c b/target/i386/tcg/sysemu/excp_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/tcg/sysemu/excp_helper.c +++ b/target/i386/tcg/sysemu/excp_helper.c @@ -XXX,XX +XXX,XX @@ static bool ptw_translate(PTETranslate *inout, hwaddr addr) int flags; inout->gaddr = addr; - flags = probe_access_full(inout->env, addr, MMU_DATA_STORE, + flags = probe_access_full(inout->env, addr, 0, MMU_DATA_STORE, inout->ptw_idx, true, &inout->haddr, &full, 0); if (unlikely(flags & TLB_INVALID_MASK)) { @@ -XXX,XX +XXX,XX @@ do_check_protect_pse36: CPUTLBEntryFull *full; int flags, nested_page_size; - flags = probe_access_full(env, paddr, access_type, + flags = probe_access_full(env, paddr, 0, access_type, MMU_NESTED_IDX, true, &pte_trans.haddr, &full, 0); if (unlikely(flags & TLB_INVALID_MASK)) { -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Adds a new field to TranslationBlock.cflags denoting whether or not the instructions of a given translation block are pc-relative. This field aims to replace the macro `TARGET_TB_PCREL`. Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-2-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/exec-all.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ struct TranslationBlock { #define CF_INVALID 0x00040000 /* TB is stale. Set with @jmp_lock held */ #define CF_PARALLEL 0x00080000 /* Generate code for a parallel context */ #define CF_NOIRQ 0x00100000 /* Generate an uninterruptible TB */ +#define CF_PCREL 0x00200000 /* Opcodes in TB are PC-relative */ #define CF_CLUSTER_MASK 0xff000000 /* Top 8 bits are cluster ID */ #define CF_CLUSTER_SHIFT 24 -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-3-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/i386/cpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -XXX,XX +XXX,XX @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp) static bool ht_warned; unsigned requested_lbr_fmt; + /* Use pc-relative instructions in system-mode */ +#ifndef CONFIG_USER_ONLY + cs->tcg_cflags |= CF_PCREL; +#endif + if (cpu->apic_id == UNASSIGNED_APIC_ID) { error_setg(errp, "apic-id property was not initialized properly"); return; -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-4-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/arm/cpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -XXX,XX +XXX,XX @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp) Error *local_err = NULL; bool no_aa32 = false; + /* Use pc-relative instructions in system-mode */ +#ifndef CONFIG_USER_ONLY + cs->tcg_cflags |= CF_PCREL; +#endif + /* If we needed to query the host kernel for the CPU features * then it's possible that might have failed in the initfn, but * this is the first point where we can report it. -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-5-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/internal.h | 10 ++++---- accel/tcg/tb-jmp-cache.h | 48 +++++++++++++++++++-------------------- accel/tcg/cpu-exec.c | 8 +++---- accel/tcg/perf.c | 2 +- accel/tcg/tb-maint.c | 8 +++---- accel/tcg/translate-all.c | 14 ++++++------ 6 files changed, 44 insertions(+), 46 deletions(-) diff --git a/accel/tcg/internal.h b/accel/tcg/internal.h index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/internal.h +++ b/accel/tcg/internal.h @@ -XXX,XX +XXX,XX @@ void cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb, /* Return the current PC from CPU, which may be cached in TB. */ static inline target_ulong log_pc(CPUState *cpu, const TranslationBlock *tb) { -#if TARGET_TB_PCREL - return cpu->cc->get_pc(cpu); -#else - return tb_pc(tb); -#endif + if (tb_cflags(tb) & CF_PCREL) { + return cpu->cc->get_pc(cpu); + } else { + return tb_pc(tb); + } } extern int64_t max_delay; diff --git a/accel/tcg/tb-jmp-cache.h b/accel/tcg/tb-jmp-cache.h index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/tb-jmp-cache.h +++ b/accel/tcg/tb-jmp-cache.h @@ -XXX,XX +XXX,XX @@ /* * Accessed in parallel; all accesses to 'tb' must be atomic. - * For TARGET_TB_PCREL, accesses to 'pc' must be protected by - * a load_acquire/store_release to 'tb'. + * For CF_PCREL, accesses to 'pc' must be protected by a + * load_acquire/store_release to 'tb'. */ struct CPUJumpCache { struct rcu_head rcu; struct { TranslationBlock *tb; -#if TARGET_TB_PCREL target_ulong pc; -#endif } array[TB_JMP_CACHE_SIZE]; }; static inline TranslationBlock * -tb_jmp_cache_get_tb(CPUJumpCache *jc, uint32_t hash) +tb_jmp_cache_get_tb(CPUJumpCache *jc, uint32_t cflags, uint32_t hash) { -#if TARGET_TB_PCREL - /* Use acquire to ensure current load of pc from jc. */ - return qatomic_load_acquire(&jc->array[hash].tb); -#else - /* Use rcu_read to ensure current load of pc from *tb. */ - return qatomic_rcu_read(&jc->array[hash].tb); -#endif + if (cflags & CF_PCREL) { + /* Use acquire to ensure current load of pc from jc. */ + return qatomic_load_acquire(&jc->array[hash].tb); + } else { + /* Use rcu_read to ensure current load of pc from *tb. */ + return qatomic_rcu_read(&jc->array[hash].tb); + } } static inline target_ulong tb_jmp_cache_get_pc(CPUJumpCache *jc, uint32_t hash, TranslationBlock *tb) { -#if TARGET_TB_PCREL - return jc->array[hash].pc; -#else - return tb_pc(tb); -#endif + if (tb_cflags(tb) & CF_PCREL) { + return jc->array[hash].pc; + } else { + return tb_pc(tb); + } } static inline void tb_jmp_cache_set(CPUJumpCache *jc, uint32_t hash, TranslationBlock *tb, target_ulong pc) { -#if TARGET_TB_PCREL - jc->array[hash].pc = pc; - /* Use store_release on tb to ensure pc is written first. */ - qatomic_store_release(&jc->array[hash].tb, tb); -#else - /* Use the pc value already stored in tb->pc. */ - qatomic_set(&jc->array[hash].tb, tb); -#endif + if (tb_cflags(tb) & CF_PCREL) { + jc->array[hash].pc = pc; + /* Use store_release on tb to ensure pc is written first. */ + qatomic_store_release(&jc->array[hash].tb, tb); + } else{ + /* Use the pc value already stored in tb->pc. */ + qatomic_set(&jc->array[hash].tb, tb); + } } #endif /* ACCEL_TCG_TB_JMP_CACHE_H */ diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -XXX,XX +XXX,XX @@ static bool tb_lookup_cmp(const void *p, const void *d) const TranslationBlock *tb = p; const struct tb_desc *desc = d; - if ((TARGET_TB_PCREL || tb_pc(tb) == desc->pc) && + if ((tb_cflags(tb) & CF_PCREL || tb_pc(tb) == desc->pc) && tb_page_addr0(tb) == desc->page_addr0 && tb->cs_base == desc->cs_base && tb->flags == desc->flags && @@ -XXX,XX +XXX,XX @@ static TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc, return NULL; } desc.page_addr0 = phys_pc; - h = tb_hash_func(phys_pc, (TARGET_TB_PCREL ? 0 : pc), + h = tb_hash_func(phys_pc, (cflags & CF_PCREL ? 0 : pc), flags, cflags, *cpu->trace_dstate); return qht_lookup_custom(&tb_ctx.htable, &desc, h, tb_lookup_cmp); } @@ -XXX,XX +XXX,XX @@ static inline TranslationBlock *tb_lookup(CPUState *cpu, target_ulong pc, hash = tb_jmp_cache_hash_func(pc); jc = cpu->tb_jmp_cache; - tb = tb_jmp_cache_get_tb(jc, hash); + tb = tb_jmp_cache_get_tb(jc, cflags, hash); if (likely(tb && tb_jmp_cache_get_pc(jc, hash, tb) == pc && @@ -XXX,XX +XXX,XX @@ cpu_tb_exec(CPUState *cpu, TranslationBlock *itb, int *tb_exit) if (cc->tcg_ops->synchronize_from_tb) { cc->tcg_ops->synchronize_from_tb(cpu, last_tb); } else { - assert(!TARGET_TB_PCREL); + tcg_debug_assert(!(tb_cflags(last_tb) & CF_PCREL)); assert(cc->set_pc); cc->set_pc(cpu, tb_pc(last_tb)); } diff --git a/accel/tcg/perf.c b/accel/tcg/perf.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/perf.c +++ b/accel/tcg/perf.c @@ -XXX,XX +XXX,XX @@ void perf_report_code(uint64_t guest_pc, TranslationBlock *tb, for (insn = 0; insn < tb->icount; insn++) { /* FIXME: This replicates the restore_state_to_opc() logic. */ q[insn].address = tcg_ctx->gen_insn_data[insn][0]; - if (TARGET_TB_PCREL) { + if (tb_cflags(tb) & CF_PCREL) { q[insn].address |= (guest_pc & TARGET_PAGE_MASK); } else { #if defined(TARGET_I386) diff --git a/accel/tcg/tb-maint.c b/accel/tcg/tb-maint.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/tb-maint.c +++ b/accel/tcg/tb-maint.c @@ -XXX,XX +XXX,XX @@ static bool tb_cmp(const void *ap, const void *bp) const TranslationBlock *a = ap; const TranslationBlock *b = bp; - return ((TARGET_TB_PCREL || tb_pc(a) == tb_pc(b)) && + return ((tb_cflags(a) & CF_PCREL || tb_pc(a) == tb_pc(b)) && a->cs_base == b->cs_base && a->flags == b->flags && (tb_cflags(a) & ~CF_INVALID) == (tb_cflags(b) & ~CF_INVALID) && @@ -XXX,XX +XXX,XX @@ static void tb_jmp_cache_inval_tb(TranslationBlock *tb) { CPUState *cpu; - if (TARGET_TB_PCREL) { + if (tb_cflags(tb) & CF_PCREL) { /* A TB may be at any virtual address */ CPU_FOREACH(cpu) { tcg_flush_jmp_cache(cpu); @@ -XXX,XX +XXX,XX @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list) /* remove the TB from the hash list */ phys_pc = tb_page_addr0(tb); - h = tb_hash_func(phys_pc, (TARGET_TB_PCREL ? 0 : tb_pc(tb)), + h = tb_hash_func(phys_pc, (orig_cflags & CF_PCREL ? 0 : tb_pc(tb)), tb->flags, orig_cflags, tb->trace_vcpu_dstate); if (!qht_remove(&tb_ctx.htable, tb, h)) { return; @@ -XXX,XX +XXX,XX @@ TranslationBlock *tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, tb_record(tb, p, p2); /* add in the hash table */ - h = tb_hash_func(phys_pc, (TARGET_TB_PCREL ? 0 : tb_pc(tb)), + h = tb_hash_func(phys_pc, (tb->cflags & CF_PCREL ? 0 : tb_pc(tb)), tb->flags, tb->cflags, tb->trace_vcpu_dstate); qht_insert(&tb_ctx.htable, tb, h, &existing_tb); diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ static int encode_search(TranslationBlock *tb, uint8_t *block) for (j = 0; j < TARGET_INSN_START_WORDS; ++j) { if (i == 0) { - prev = (!TARGET_TB_PCREL && j == 0 ? tb_pc(tb) : 0); + prev = (!(tb_cflags(tb) & CF_PCREL) && j == 0 ? tb_pc(tb) : 0); } else { prev = tcg_ctx->gen_insn_data[i - 1][j]; } @@ -XXX,XX +XXX,XX @@ static int cpu_unwind_data_from_tb(TranslationBlock *tb, uintptr_t host_pc, } memset(data, 0, sizeof(uint64_t) * TARGET_INSN_START_WORDS); - if (!TARGET_TB_PCREL) { + if (!(tb_cflags(tb) & CF_PCREL)) { data[0] = tb_pc(tb); } @@ -XXX,XX +XXX,XX @@ TranslationBlock *tb_gen_code(CPUState *cpu, gen_code_buf = tcg_ctx->code_gen_ptr; tb->tc.ptr = tcg_splitwx_to_rx(gen_code_buf); -#if !TARGET_TB_PCREL - tb->pc = pc; -#endif + if (!(cflags & CF_PCREL)) { + tb->pc = pc; + } tb->cs_base = cs_base; tb->flags = flags; tb->cflags = cflags; @@ -XXX,XX +XXX,XX @@ TranslationBlock *tb_gen_code(CPUState *cpu, tb->tc.size = gen_code_size; /* - * For TARGET_TB_PCREL, attribute all executions of the generated - * code to its first mapping. + * For CF_PCREL, attribute all executions of the generated code + * to its first mapping. */ perf_report_code(pc, tb, tcg_splitwx_to_rx(gen_code_buf)); -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-6-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/exec-all.h | 27 +++++++++++---------------- 1 file changed, 11 insertions(+), 16 deletions(-) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ struct tb_tc { }; struct TranslationBlock { -#if !TARGET_TB_PCREL /* * Guest PC corresponding to this block. This must be the true * virtual address. Therefore e.g. x86 stores EIP + CS_BASE, and * targets like Arm, MIPS, HP-PA, which reuse low bits for ISA or * privilege, must store those bits elsewhere. * - * If TARGET_TB_PCREL, the opcodes for the TranslationBlock are - * written such that the TB is associated only with the physical - * page and may be run in any virtual address context. In this case, - * PC must always be taken from ENV in a target-specific manner. + * If CF_PCREL, the opcodes for the TranslationBlock are written + * such that the TB is associated only with the physical page and + * may be run in any virtual address context. In this case, PC + * must always be taken from ENV in a target-specific manner. * Unwind information is taken as offsets from the page, to be * deposited into the "current" PC. */ target_ulong pc; -#endif /* * Target-specific data associated with the TranslationBlock, e.g.: @@ -XXX,XX +XXX,XX @@ struct TranslationBlock { uintptr_t jmp_dest[2]; }; -/* Hide the read to avoid ifdefs for TARGET_TB_PCREL. */ -static inline target_ulong tb_pc(const TranslationBlock *tb) -{ -#if TARGET_TB_PCREL - qemu_build_not_reached(); -#else - return tb->pc; -#endif -} - /* Hide the qatomic_read to make code a little easier on the eyes */ static inline uint32_t tb_cflags(const TranslationBlock *tb) { return qatomic_read(&tb->cflags); } +/* Hide the read to avoid ifdefs for CF_PCREL. */ +static inline target_ulong tb_pc(const TranslationBlock *tb) +{ + assert(!(tb_cflags(tb) & CF_PCREL)); + return tb->pc; +} + static inline tb_page_addr_t tb_page_addr0(const TranslationBlock *tb) { #ifdef CONFIG_USER_ONLY -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-7-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/arm/tcg/translate.h | 2 +- target/arm/cpu.c | 8 ++++---- target/arm/tcg/translate-a64.c | 8 ++++---- target/arm/tcg/translate.c | 6 +++--- 4 files changed, 12 insertions(+), 12 deletions(-) diff --git a/target/arm/tcg/translate.h b/target/arm/tcg/translate.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate.h +++ b/target/arm/tcg/translate.h @@ -XXX,XX +XXX,XX @@ typedef struct DisasContext { /* The address of the current instruction being translated. */ target_ulong pc_curr; /* - * For TARGET_TB_PCREL, the full value of cpu_pc is not known + * For CF_PCREL, the full value of cpu_pc is not known * (although the page offset is known). For convenience, the * translation loop uses the full virtual address that triggered * the translation, from base.pc_start through pc_curr. diff --git a/target/arm/cpu.c b/target/arm/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -XXX,XX +XXX,XX @@ static vaddr arm_cpu_get_pc(CPUState *cs) void arm_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { - /* The program counter is always up to date with TARGET_TB_PCREL. */ - if (!TARGET_TB_PCREL) { + /* The program counter is always up to date with CF_PCREL. */ + if (!(tb_cflags(tb) & CF_PCREL)) { CPUARMState *env = cs->env_ptr; /* * It's OK to look at env for the current mode here, because it's @@ -XXX,XX +XXX,XX @@ void arm_restore_state_to_opc(CPUState *cs, CPUARMState *env = cs->env_ptr; if (is_a64(env)) { - if (TARGET_TB_PCREL) { + if (tb_cflags(tb) & CF_PCREL) { env->pc = (env->pc & TARGET_PAGE_MASK) | data[0]; } else { env->pc = data[0]; @@ -XXX,XX +XXX,XX @@ void arm_restore_state_to_opc(CPUState *cs, env->condexec_bits = 0; env->exception.syndrome = data[2] << ARM_INSN_START_WORD2_SHIFT; } else { - if (TARGET_TB_PCREL) { + if (tb_cflags(tb) & CF_PCREL) { env->regs[15] = (env->regs[15] & TARGET_PAGE_MASK) | data[0]; } else { env->regs[15] = data[0]; diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -XXX,XX +XXX,XX @@ static void reset_btype(DisasContext *s) static void gen_pc_plus_diff(DisasContext *s, TCGv_i64 dest, target_long diff) { assert(s->pc_save != -1); - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { tcg_gen_addi_i64(dest, cpu_pc, (s->pc_curr - s->pc_save) + diff); } else { tcg_gen_movi_i64(dest, s->pc_curr + diff); @@ -XXX,XX +XXX,XX @@ static void gen_goto_tb(DisasContext *s, int n, int64_t diff) * update to pc to the unlinked path. A long chain of links * can thus avoid many updates to the PC. */ - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { gen_a64_update_pc(s, diff); tcg_gen_goto_tb(n); } else { @@ -XXX,XX +XXX,XX @@ static void disas_pc_rel_adr(DisasContext *s, uint32_t insn) if (page) { /* ADRP (page based) */ offset <<= 12; - /* The page offset is ok for TARGET_TB_PCREL. */ + /* The page offset is ok for CF_PCREL. */ offset -= s->pc_curr & 0xfff; } @@ -XXX,XX +XXX,XX @@ static void aarch64_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu) DisasContext *dc = container_of(dcbase, DisasContext, base); target_ulong pc_arg = dc->base.pc_next; - if (TARGET_TB_PCREL) { + if (tb_cflags(dcbase->tb) & CF_PCREL) { pc_arg &= ~TARGET_PAGE_MASK; } tcg_gen_insn_start(pc_arg, 0, 0); diff --git a/target/arm/tcg/translate.c b/target/arm/tcg/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate.c +++ b/target/arm/tcg/translate.c @@ -XXX,XX +XXX,XX @@ static target_long jmp_diff(DisasContext *s, target_long diff) static void gen_pc_plus_diff(DisasContext *s, TCGv_i32 var, target_long diff) { assert(s->pc_save != -1); - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { tcg_gen_addi_i32(var, cpu_R[15], (s->pc_curr - s->pc_save) + diff); } else { tcg_gen_movi_i32(var, s->pc_curr + diff); @@ -XXX,XX +XXX,XX @@ static void gen_goto_tb(DisasContext *s, int n, target_long diff) * update to pc to the unlinked path. A long chain of links * can thus avoid many updates to the PC. */ - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { gen_update_pc(s, diff); tcg_gen_goto_tb(n); } else { @@ -XXX,XX +XXX,XX @@ static void arm_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu) uint32_t condexec_bits; target_ulong pc_arg = dc->base.pc_next; - if (TARGET_TB_PCREL) { + if (tb_cflags(dcbase->tb) & CF_PCREL) { pc_arg &= ~TARGET_PAGE_MASK; } if (dc->eci) { -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-8-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/i386/helper.c | 2 +- target/i386/tcg/tcg-cpu.c | 6 +++--- target/i386/tcg/translate.c | 26 +++++++++++++------------- 3 files changed, 17 insertions(+), 17 deletions(-) diff --git a/target/i386/helper.c b/target/i386/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/helper.c +++ b/target/i386/helper.c @@ -XXX,XX +XXX,XX @@ static inline target_ulong get_memio_eip(CPUX86State *env) } /* Per x86_restore_state_to_opc. */ - if (TARGET_TB_PCREL) { + if (cs->tcg_cflags & CF_PCREL) { return (env->eip & TARGET_PAGE_MASK) | data[0]; } else { return data[0] - env->segs[R_CS].base; diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/tcg/tcg-cpu.c +++ b/target/i386/tcg/tcg-cpu.c @@ -XXX,XX +XXX,XX @@ static void x86_cpu_exec_exit(CPUState *cs) static void x86_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) { - /* The instruction pointer is always up to date with TARGET_TB_PCREL. */ - if (!TARGET_TB_PCREL) { + /* The instruction pointer is always up to date with CF_PCREL. */ + if (!(tb_cflags(tb) & CF_PCREL)) { CPUX86State *env = cs->env_ptr; env->eip = tb_pc(tb) - tb->cs_base; } @@ -XXX,XX +XXX,XX @@ static void x86_restore_state_to_opc(CPUState *cs, CPUX86State *env = &cpu->env; int cc_op = data[1]; - if (TARGET_TB_PCREL) { + if (tb_cflags(tb) & CF_PCREL) { env->eip = (env->eip & TARGET_PAGE_MASK) | data[0]; } else { env->eip = data[0] - tb->cs_base; diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -XXX,XX +XXX,XX @@ static inline void gen_op_st_rm_T0_A0(DisasContext *s, int idx, int d) static void gen_update_eip_cur(DisasContext *s) { assert(s->pc_save != -1); - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { tcg_gen_addi_tl(cpu_eip, cpu_eip, s->base.pc_next - s->pc_save); } else { tcg_gen_movi_tl(cpu_eip, s->base.pc_next - s->cs_base); @@ -XXX,XX +XXX,XX @@ static void gen_update_eip_cur(DisasContext *s) static void gen_update_eip_next(DisasContext *s) { assert(s->pc_save != -1); - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { tcg_gen_addi_tl(cpu_eip, cpu_eip, s->pc - s->pc_save); } else { tcg_gen_movi_tl(cpu_eip, s->pc - s->cs_base); @@ -XXX,XX +XXX,XX @@ static TCGv_i32 eip_next_i32(DisasContext *s) if (CODE64(s)) { return tcg_constant_i32(-1); } - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { TCGv_i32 ret = tcg_temp_new_i32(); tcg_gen_trunc_tl_i32(ret, cpu_eip); tcg_gen_addi_i32(ret, ret, s->pc - s->pc_save); @@ -XXX,XX +XXX,XX @@ static TCGv_i32 eip_next_i32(DisasContext *s) static TCGv eip_next_tl(DisasContext *s) { assert(s->pc_save != -1); - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { TCGv ret = tcg_temp_new(); tcg_gen_addi_tl(ret, cpu_eip, s->pc - s->pc_save); return ret; @@ -XXX,XX +XXX,XX @@ static TCGv eip_next_tl(DisasContext *s) static TCGv eip_cur_tl(DisasContext *s) { assert(s->pc_save != -1); - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { TCGv ret = tcg_temp_new(); tcg_gen_addi_tl(ret, cpu_eip, s->base.pc_next - s->pc_save); return ret; @@ -XXX,XX +XXX,XX @@ static void gen_rot_rm_T1(DisasContext *s, MemOp ot, int op1, int is_right) tcg_temp_free_i32(t0); tcg_temp_free_i32(t1); - /* The CC_OP value is no longer predictable. */ + /* The CC_OP value is no longer predictable. */ set_cc_op(s, CC_OP_DYNAMIC); } @@ -XXX,XX +XXX,XX @@ static void gen_rotc_rm_T1(DisasContext *s, MemOp ot, int op1, gen_op_ld_v(s, ot, s->T0, s->A0); else gen_op_mov_v_reg(s, ot, s->T0, op1); - + if (is_right) { switch (ot) { case MO_8: @@ -XXX,XX +XXX,XX @@ static TCGv gen_lea_modrm_1(DisasContext *s, AddressParts a, bool is_vsib) ea = cpu_regs[a.base]; } if (!ea) { - if (TARGET_TB_PCREL && a.base == -2) { + if (tb_cflags(s->base.tb) & CF_PCREL && a.base == -2) { /* With cpu_eip ~= pc_save, the expression is pc-relative. */ tcg_gen_addi_tl(s->A0, cpu_eip, a.disp - s->pc_save); } else { @@ -XXX,XX +XXX,XX @@ static void gen_jmp_rel(DisasContext *s, MemOp ot, int diff, int tb_num) if (!CODE64(s)) { if (ot == MO_16) { mask = 0xffff; - if (TARGET_TB_PCREL && CODE32(s)) { + if (tb_cflags(s->base.tb) & CF_PCREL && CODE32(s)) { use_goto_tb = false; } } else { @@ -XXX,XX +XXX,XX @@ static void gen_jmp_rel(DisasContext *s, MemOp ot, int diff, int tb_num) gen_update_cc_op(s); set_cc_op(s, CC_OP_DYNAMIC); - if (TARGET_TB_PCREL) { + if (tb_cflags(s->base.tb) & CF_PCREL) { tcg_gen_addi_tl(cpu_eip, cpu_eip, new_pc - s->pc_save); /* * If we can prove the branch does not leave the page and we have @@ -XXX,XX +XXX,XX @@ static void gen_jmp_rel(DisasContext *s, MemOp ot, int diff, int tb_num) translator_use_goto_tb(&s->base, new_eip + s->cs_base)) { /* jump to same page: we can use a direct jump */ tcg_gen_goto_tb(tb_num); - if (!TARGET_TB_PCREL) { + if (!(tb_cflags(s->base.tb) & CF_PCREL)) { tcg_gen_movi_tl(cpu_eip, new_eip); } tcg_gen_exit_tb(s->base.tb, tb_num); s->base.is_jmp = DISAS_NORETURN; } else { - if (!TARGET_TB_PCREL) { + if (!(tb_cflags(s->base.tb) & CF_PCREL)) { tcg_gen_movi_tl(cpu_eip, new_eip); } if (s->jmp_opt) { @@ -XXX,XX +XXX,XX @@ static void i386_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu) target_ulong pc_arg = dc->base.pc_next; dc->prev_insn_end = tcg_last_op(); - if (TARGET_TB_PCREL) { + if (tb_cflags(dcbase->tb) & CF_PCREL) { pc_arg -= dc->cs_base; pc_arg &= ~TARGET_PAGE_MASK; } -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-9-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/cpu-defs.h | 3 --- 1 file changed, 3 deletions(-) diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/cpu-defs.h +++ b/include/exec/cpu-defs.h @@ -XXX,XX +XXX,XX @@ # error TARGET_PAGE_BITS must be defined in cpu-param.h # endif #endif -#ifndef TARGET_TB_PCREL -# define TARGET_TB_PCREL 0 -#endif #define TARGET_LONG_SIZE (TARGET_LONG_BITS / 8) -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-10-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/arm/cpu-param.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/target/arm/cpu-param.h b/target/arm/cpu-param.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu-param.h +++ b/target/arm/cpu-param.h @@ -XXX,XX +XXX,XX @@ # define TARGET_PAGE_BITS_VARY # define TARGET_PAGE_BITS_MIN 10 -# define TARGET_TB_PCREL 1 - /* * Cache the attrs and shareability fields from the page table entry. * -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-11-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/i386/cpu-param.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/target/i386/cpu-param.h b/target/i386/cpu-param.h index XXXXXXX..XXXXXXX 100644 --- a/target/i386/cpu-param.h +++ b/target/i386/cpu-param.h @@ -XXX,XX +XXX,XX @@ #define TARGET_PAGE_BITS 12 #define NB_MMU_MODES 5 -#ifndef CONFIG_USER_ONLY -# define TARGET_TB_PCREL 1 -#endif - #endif -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> tb-jmp-cache.h contains a few small functions that only exist to hide a CF_PCREL check, however the caller often already performs such a check. This patch moves CF_PCREL checks from the callee to the caller, and also removes these functions which now only hide an access of the jmp-cache. Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-12-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/tb-jmp-cache.h | 36 --------------------------- accel/tcg/cpu-exec.c | 54 +++++++++++++++++++++++++++++----------- 2 files changed, 40 insertions(+), 50 deletions(-) diff --git a/accel/tcg/tb-jmp-cache.h b/accel/tcg/tb-jmp-cache.h index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/tb-jmp-cache.h +++ b/accel/tcg/tb-jmp-cache.h @@ -XXX,XX +XXX,XX @@ struct CPUJumpCache { } array[TB_JMP_CACHE_SIZE]; }; -static inline TranslationBlock * -tb_jmp_cache_get_tb(CPUJumpCache *jc, uint32_t cflags, uint32_t hash) -{ - if (cflags & CF_PCREL) { - /* Use acquire to ensure current load of pc from jc. */ - return qatomic_load_acquire(&jc->array[hash].tb); - } else { - /* Use rcu_read to ensure current load of pc from *tb. */ - return qatomic_rcu_read(&jc->array[hash].tb); - } -} - -static inline target_ulong -tb_jmp_cache_get_pc(CPUJumpCache *jc, uint32_t hash, TranslationBlock *tb) -{ - if (tb_cflags(tb) & CF_PCREL) { - return jc->array[hash].pc; - } else { - return tb_pc(tb); - } -} - -static inline void -tb_jmp_cache_set(CPUJumpCache *jc, uint32_t hash, - TranslationBlock *tb, target_ulong pc) -{ - if (tb_cflags(tb) & CF_PCREL) { - jc->array[hash].pc = pc; - /* Use store_release on tb to ensure pc is written first. */ - qatomic_store_release(&jc->array[hash].tb, tb); - } else{ - /* Use the pc value already stored in tb->pc. */ - qatomic_set(&jc->array[hash].tb, tb); - } -} - #endif /* ACCEL_TCG_TB_JMP_CACHE_H */ diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -XXX,XX +XXX,XX @@ static inline TranslationBlock *tb_lookup(CPUState *cpu, target_ulong pc, hash = tb_jmp_cache_hash_func(pc); jc = cpu->tb_jmp_cache; - tb = tb_jmp_cache_get_tb(jc, cflags, hash); - if (likely(tb && - tb_jmp_cache_get_pc(jc, hash, tb) == pc && - tb->cs_base == cs_base && - tb->flags == flags && - tb->trace_vcpu_dstate == *cpu->trace_dstate && - tb_cflags(tb) == cflags)) { - return tb; + if (cflags & CF_PCREL) { + /* Use acquire to ensure current load of pc from jc. */ + tb = qatomic_load_acquire(&jc->array[hash].tb); + + if (likely(tb && + jc->array[hash].pc == pc && + tb->cs_base == cs_base && + tb->flags == flags && + tb->trace_vcpu_dstate == *cpu->trace_dstate && + tb_cflags(tb) == cflags)) { + return tb; + } + tb = tb_htable_lookup(cpu, pc, cs_base, flags, cflags); + if (tb == NULL) { + return NULL; + } + jc->array[hash].pc = pc; + /* Use store_release on tb to ensure pc is written first. */ + qatomic_store_release(&jc->array[hash].tb, tb); + } else { + /* Use rcu_read to ensure current load of pc from *tb. */ + tb = qatomic_rcu_read(&jc->array[hash].tb); + + if (likely(tb && + tb_pc(tb) == pc && + tb->cs_base == cs_base && + tb->flags == flags && + tb->trace_vcpu_dstate == *cpu->trace_dstate && + tb_cflags(tb) == cflags)) { + return tb; + } + tb = tb_htable_lookup(cpu, pc, cs_base, flags, cflags); + if (tb == NULL) { + return NULL; + } + /* Use the pc value already stored in tb->pc. */ + qatomic_set(&jc->array[hash].tb, tb); } - tb = tb_htable_lookup(cpu, pc, cs_base, flags, cflags); - if (tb == NULL) { - return NULL; - } - tb_jmp_cache_set(jc, hash, tb, pc); + return tb; } @@ -XXX,XX +XXX,XX @@ cpu_exec_loop(CPUState *cpu, SyncClocks *sc) * for the fast lookup */ h = tb_jmp_cache_hash_func(pc); - tb_jmp_cache_set(cpu->tb_jmp_cache, h, tb, pc); + /* Use the pc value already stored in tb->pc. */ + qatomic_set(&cpu->tb_jmp_cache->array[h].tb, tb); } #ifndef CONFIG_USER_ONLY -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-13-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/internal.h | 2 +- accel/tcg/cpu-exec.c | 6 +++--- accel/tcg/tb-maint.c | 8 ++++---- accel/tcg/translate-all.c | 4 ++-- 4 files changed, 10 insertions(+), 10 deletions(-) diff --git a/accel/tcg/internal.h b/accel/tcg/internal.h index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/internal.h +++ b/accel/tcg/internal.h @@ -XXX,XX +XXX,XX @@ static inline target_ulong log_pc(CPUState *cpu, const TranslationBlock *tb) if (tb_cflags(tb) & CF_PCREL) { return cpu->cc->get_pc(cpu); } else { - return tb_pc(tb); + return tb->pc; } } diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -XXX,XX +XXX,XX @@ static bool tb_lookup_cmp(const void *p, const void *d) const TranslationBlock *tb = p; const struct tb_desc *desc = d; - if ((tb_cflags(tb) & CF_PCREL || tb_pc(tb) == desc->pc) && + if ((tb_cflags(tb) & CF_PCREL || tb->pc == desc->pc) && tb_page_addr0(tb) == desc->page_addr0 && tb->cs_base == desc->cs_base && tb->flags == desc->flags && @@ -XXX,XX +XXX,XX @@ static inline TranslationBlock *tb_lookup(CPUState *cpu, target_ulong pc, tb = qatomic_rcu_read(&jc->array[hash].tb); if (likely(tb && - tb_pc(tb) == pc && + tb->pc == pc && tb->cs_base == cs_base && tb->flags == flags && tb->trace_vcpu_dstate == *cpu->trace_dstate && @@ -XXX,XX +XXX,XX @@ cpu_tb_exec(CPUState *cpu, TranslationBlock *itb, int *tb_exit) } else { tcg_debug_assert(!(tb_cflags(last_tb) & CF_PCREL)); assert(cc->set_pc); - cc->set_pc(cpu, tb_pc(last_tb)); + cc->set_pc(cpu, last_tb->pc); } if (qemu_loglevel_mask(CPU_LOG_EXEC)) { target_ulong pc = log_pc(cpu, last_tb); diff --git a/accel/tcg/tb-maint.c b/accel/tcg/tb-maint.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/tb-maint.c +++ b/accel/tcg/tb-maint.c @@ -XXX,XX +XXX,XX @@ static bool tb_cmp(const void *ap, const void *bp) const TranslationBlock *a = ap; const TranslationBlock *b = bp; - return ((tb_cflags(a) & CF_PCREL || tb_pc(a) == tb_pc(b)) && + return ((tb_cflags(a) & CF_PCREL || a->pc == b->pc) && a->cs_base == b->cs_base && a->flags == b->flags && (tb_cflags(a) & ~CF_INVALID) == (tb_cflags(b) & ~CF_INVALID) && @@ -XXX,XX +XXX,XX @@ static void tb_jmp_cache_inval_tb(TranslationBlock *tb) tcg_flush_jmp_cache(cpu); } } else { - uint32_t h = tb_jmp_cache_hash_func(tb_pc(tb)); + uint32_t h = tb_jmp_cache_hash_func(tb->pc); CPU_FOREACH(cpu) { CPUJumpCache *jc = cpu->tb_jmp_cache; @@ -XXX,XX +XXX,XX @@ static void do_tb_phys_invalidate(TranslationBlock *tb, bool rm_from_page_list) /* remove the TB from the hash list */ phys_pc = tb_page_addr0(tb); - h = tb_hash_func(phys_pc, (orig_cflags & CF_PCREL ? 0 : tb_pc(tb)), + h = tb_hash_func(phys_pc, (orig_cflags & CF_PCREL ? 0 : tb->pc), tb->flags, orig_cflags, tb->trace_vcpu_dstate); if (!qht_remove(&tb_ctx.htable, tb, h)) { return; @@ -XXX,XX +XXX,XX @@ TranslationBlock *tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, tb_record(tb, p, p2); /* add in the hash table */ - h = tb_hash_func(phys_pc, (tb->cflags & CF_PCREL ? 0 : tb_pc(tb)), + h = tb_hash_func(phys_pc, (tb->cflags & CF_PCREL ? 0 : tb->pc), tb->flags, tb->cflags, tb->trace_vcpu_dstate); qht_insert(&tb_ctx.htable, tb, h, &existing_tb); diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ static int encode_search(TranslationBlock *tb, uint8_t *block) for (j = 0; j < TARGET_INSN_START_WORDS; ++j) { if (i == 0) { - prev = (!(tb_cflags(tb) & CF_PCREL) && j == 0 ? tb_pc(tb) : 0); + prev = (!(tb_cflags(tb) & CF_PCREL) && j == 0 ? tb->pc : 0); } else { prev = tcg_ctx->gen_insn_data[i - 1][j]; } @@ -XXX,XX +XXX,XX @@ static int cpu_unwind_data_from_tb(TranslationBlock *tb, uintptr_t host_pc, memset(data, 0, sizeof(uint64_t) * TARGET_INSN_START_WORDS); if (!(tb_cflags(tb) & CF_PCREL)) { - data[0] = tb_pc(tb); + data[0] = tb->pc; } /* -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-14-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/tricore/cpu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/tricore/cpu.c +++ b/target/tricore/cpu.c @@ -XXX,XX +XXX,XX @@ static void tricore_cpu_synchronize_from_tb(CPUState *cs, TriCoreCPU *cpu = TRICORE_CPU(cs); CPUTriCoreState *env = &cpu->env; - env->PC = tb_pc(tb); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + env->PC = tb->pc; } static void tricore_restore_state_to_opc(CPUState *cs, -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-15-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/sparc/cpu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/sparc/cpu.c +++ b/target/sparc/cpu.c @@ -XXX,XX +XXX,XX @@ #include "exec/exec-all.h" #include "hw/qdev-properties.h" #include "qapi/visitor.h" +#include "tcg/tcg.h" //#define DEBUG_FEATURES @@ -XXX,XX +XXX,XX @@ static void sparc_cpu_synchronize_from_tb(CPUState *cs, { SPARCCPU *cpu = SPARC_CPU(cs); - cpu->env.pc = tb_pc(tb); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + cpu->env.pc = tb->pc; cpu->env.npc = tb->cs_base; } -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-16-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/sh4/cpu.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/sh4/cpu.c +++ b/target/sh4/cpu.c @@ -XXX,XX +XXX,XX @@ #include "migration/vmstate.h" #include "exec/exec-all.h" #include "fpu/softfloat-helpers.h" +#include "tcg/tcg.h" static void superh_cpu_set_pc(CPUState *cs, vaddr value) { @@ -XXX,XX +XXX,XX @@ static void superh_cpu_synchronize_from_tb(CPUState *cs, { SuperHCPU *cpu = SUPERH_CPU(cs); - cpu->env.pc = tb_pc(tb); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + cpu->env.pc = tb->pc; cpu->env.flags = tb->flags & TB_FLAG_ENVFLAGS_MASK; } @@ -XXX,XX +XXX,XX @@ static bool superh_io_recompile_replay_branch(CPUState *cs, CPUSH4State *env = &cpu->env; if ((env->flags & (TB_FLAG_DELAY_SLOT | TB_FLAG_DELAY_SLOT_COND)) - && env->pc != tb_pc(tb)) { + && !(cs->tcg_cflags & CF_PCREL) && env->pc != tb->pc) { env->pc -= 2; env->flags &= ~(TB_FLAG_DELAY_SLOT | TB_FLAG_DELAY_SLOT_COND); return true; -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-17-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/rx/cpu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/rx/cpu.c b/target/rx/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/rx/cpu.c +++ b/target/rx/cpu.c @@ -XXX,XX +XXX,XX @@ static void rx_cpu_synchronize_from_tb(CPUState *cs, { RXCPU *cpu = RX_CPU(cs); - cpu->env.pc = tb_pc(tb); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + cpu->env.pc = tb->pc; } static void rx_restore_state_to_opc(CPUState *cs, -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-18-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/riscv/cpu.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ #include "fpu/softfloat-helpers.h" #include "sysemu/kvm.h" #include "kvm_riscv.h" +#include "tcg/tcg.h" /* RISC-V CPU definitions */ @@ -XXX,XX +XXX,XX @@ static void riscv_cpu_synchronize_from_tb(CPUState *cs, CPURISCVState *env = &cpu->env; RISCVMXL xl = FIELD_EX32(tb->flags, TB_FLAGS, XL); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + if (xl == MXL_RV32) { - env->pc = (int32_t)tb_pc(tb); + env->pc = (int32_t) tb->pc; } else { - env->pc = tb_pc(tb); + env->pc = tb->pc; } } -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-19-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/openrisc/cpu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/openrisc/cpu.c +++ b/target/openrisc/cpu.c @@ -XXX,XX +XXX,XX @@ #include "qemu/qemu-print.h" #include "cpu.h" #include "exec/exec-all.h" +#include "tcg/tcg.h" static void openrisc_cpu_set_pc(CPUState *cs, vaddr value) { @@ -XXX,XX +XXX,XX @@ static void openrisc_cpu_synchronize_from_tb(CPUState *cs, { OpenRISCCPU *cpu = OPENRISC_CPU(cs); - cpu->env.pc = tb_pc(tb); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + cpu->env.pc = tb->pc; } static void openrisc_restore_state_to_opc(CPUState *cs, -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-20-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/mips/tcg/exception.c | 3 ++- target/mips/tcg/sysemu/special_helper.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/target/mips/tcg/exception.c b/target/mips/tcg/exception.c index XXXXXXX..XXXXXXX 100644 --- a/target/mips/tcg/exception.c +++ b/target/mips/tcg/exception.c @@ -XXX,XX +XXX,XX @@ void mips_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb) MIPSCPU *cpu = MIPS_CPU(cs); CPUMIPSState *env = &cpu->env; - env->active_tc.PC = tb_pc(tb); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + env->active_tc.PC = tb->pc; env->hflags &= ~MIPS_HFLAG_BMASK; env->hflags |= tb->flags & MIPS_HFLAG_BMASK; } diff --git a/target/mips/tcg/sysemu/special_helper.c b/target/mips/tcg/sysemu/special_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/mips/tcg/sysemu/special_helper.c +++ b/target/mips/tcg/sysemu/special_helper.c @@ -XXX,XX +XXX,XX @@ bool mips_io_recompile_replay_branch(CPUState *cs, const TranslationBlock *tb) CPUMIPSState *env = &cpu->env; if ((env->hflags & MIPS_HFLAG_BMASK) != 0 - && env->active_tc.PC != tb_pc(tb)) { + && !(cs->tcg_cflags & CF_PCREL) && env->active_tc.PC != tb->pc) { env->active_tc.PC -= (env->hflags & MIPS_HFLAG_B16 ? 2 : 4); env->hflags &= ~MIPS_HFLAG_BMASK; return true; -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-21-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/microblaze/cpu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/microblaze/cpu.c +++ b/target/microblaze/cpu.c @@ -XXX,XX +XXX,XX @@ #include "exec/exec-all.h" #include "exec/gdbstub.h" #include "fpu/softfloat-helpers.h" +#include "tcg/tcg.h" static const struct { const char *name; @@ -XXX,XX +XXX,XX @@ static void mb_cpu_synchronize_from_tb(CPUState *cs, { MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs); - cpu->env.pc = tb_pc(tb); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + cpu->env.pc = tb->pc; cpu->env.iflags = tb->flags & IFLAGS_TB_MASK; } -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-22-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/loongarch/cpu.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -XXX,XX +XXX,XX @@ #include "fpu/softfloat-helpers.h" #include "cpu-csr.h" #include "sysemu/reset.h" +#include "tcg/tcg.h" const char * const regnames[32] = { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", @@ -XXX,XX +XXX,XX @@ static void loongarch_cpu_synchronize_from_tb(CPUState *cs, LoongArchCPU *cpu = LOONGARCH_CPU(cs); CPULoongArchState *env = &cpu->env; - env->pc = tb_pc(tb); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + env->pc = tb->pc; } static void loongarch_restore_state_to_opc(CPUState *cs, @@ -XXX,XX +XXX,XX @@ static ObjectClass *loongarch_cpu_class_by_name(const char *cpu_model) oc = object_class_by_name(cpu_model); if (!oc) { - g_autofree char *typename + g_autofree char *typename = g_strdup_printf(LOONGARCH_CPU_TYPE_NAME("%s"), cpu_model); oc = object_class_by_name(typename); if (!oc) { -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-23-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/i386/tcg/tcg-cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/tcg/tcg-cpu.c +++ b/target/i386/tcg/tcg-cpu.c @@ -XXX,XX +XXX,XX @@ static void x86_cpu_synchronize_from_tb(CPUState *cs, /* The instruction pointer is always up to date with CF_PCREL. */ if (!(tb_cflags(tb) & CF_PCREL)) { CPUX86State *env = cs->env_ptr; - env->eip = tb_pc(tb) - tb->cs_base; + env->eip = tb->pc - tb->cs_base; } } -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-24-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/hppa/cpu.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/hppa/cpu.c +++ b/target/hppa/cpu.c @@ -XXX,XX +XXX,XX @@ #include "qemu/module.h" #include "exec/exec-all.h" #include "fpu/softfloat.h" - +#include "tcg/tcg.h" static void hppa_cpu_set_pc(CPUState *cs, vaddr value) { @@ -XXX,XX +XXX,XX @@ static void hppa_cpu_synchronize_from_tb(CPUState *cs, { HPPACPU *cpu = HPPA_CPU(cs); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + #ifdef CONFIG_USER_ONLY - cpu->env.iaoq_f = tb_pc(tb); + cpu->env.iaoq_f = tb->pc; cpu->env.iaoq_b = tb->cs_base; #else /* Recover the IAOQ values from the GVA + PRIV. */ @@ -XXX,XX +XXX,XX @@ static void hppa_cpu_synchronize_from_tb(CPUState *cs, int32_t diff = cs_base; cpu->env.iasq_f = iasq_f; - cpu->env.iaoq_f = (tb_pc(tb) & ~iasq_f) + priv; + cpu->env.iaoq_f = (tb->pc & ~iasq_f) + priv; if (diff) { cpu->env.iaoq_b = cpu->env.iaoq_f + diff; } -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20230227135202.9710-25-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/hexagon/cpu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/cpu.c +++ b/target/hexagon/cpu.c @@ -XXX,XX +XXX,XX @@ #include "qapi/error.h" #include "hw/qdev-properties.h" #include "fpu/softfloat-helpers.h" +#include "tcg/tcg.h" static void hexagon_v67_cpu_init(Object *obj) { @@ -XXX,XX +XXX,XX @@ static void hexagon_cpu_synchronize_from_tb(CPUState *cs, { HexagonCPU *cpu = HEXAGON_CPU(cs); CPUHexagonState *env = &cpu->env; - env->gpr[HEX_REG_PC] = tb_pc(tb); + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + env->gpr[HEX_REG_PC] = tb->pc; } static bool hexagon_cpu_has_work(CPUState *cs) -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-26-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/avr/cpu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/avr/cpu.c b/target/avr/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/avr/cpu.c +++ b/target/avr/cpu.c @@ -XXX,XX +XXX,XX @@ static void avr_cpu_synchronize_from_tb(CPUState *cs, AVRCPU *cpu = AVR_CPU(cs); CPUAVRState *env = &cpu->env; - env->pc_w = tb_pc(tb) / 2; /* internally PC points to words */ + tcg_debug_assert(!(cs->tcg_cflags & CF_PCREL)); + env->pc_w = tb->pc / 2; /* internally PC points to words */ } static void avr_restore_state_to_opc(CPUState *cs, -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-27-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/arm/cpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -XXX,XX +XXX,XX @@ void arm_cpu_synchronize_from_tb(CPUState *cs, * never possible for an AArch64 TB to chain to an AArch32 TB. */ if (is_a64(env)) { - env->pc = tb_pc(tb); + env->pc = tb->pc; } else { - env->regs[15] = tb_pc(tb); + env->regs[15] = tb->pc; } } } -- 2.34.1 From: Anton Johansson via <qemu-devel@nongnu.org> Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-28-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/exec-all.h | 7 ------- 1 file changed, 7 deletions(-) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -XXX,XX +XXX,XX @@ static inline uint32_t tb_cflags(const TranslationBlock *tb) return qatomic_read(&tb->cflags); } -/* Hide the read to avoid ifdefs for CF_PCREL. */ -static inline target_ulong tb_pc(const TranslationBlock *tb) -{ - assert(!(tb_cflags(tb) & CF_PCREL)); - return tb->pc; -} - static inline tb_page_addr_t tb_page_addr0(const TranslationBlock *tb) { #ifdef CONFIG_USER_ONLY -- 2.34.1 Change the temps_in_use check to use assert not fprintf. Move the assert for double-free before the check for count, since that is the more immediate problem. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- tcg/tcg.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ void tcg_temp_free_internal(TCGTemp *ts) g_assert_not_reached(); } -#if defined(CONFIG_DEBUG_TCG) - s->temps_in_use--; - if (s->temps_in_use < 0) { - fprintf(stderr, "More temporaries freed than allocated!\n"); - } -#endif - tcg_debug_assert(ts->temp_allocated != 0); ts->temp_allocated = 0; +#if defined(CONFIG_DEBUG_TCG) + assert(s->temps_in_use > 0); + s->temps_in_use--; +#endif + idx = temp_idx(ts); k = ts->base_type + (ts->kind == TEMP_NORMAL ? 0 : TCG_TYPE_COUNT); set_bit(idx, s->free_temps[k].l); -- 2.34.1 In preparation for returning the number of insns generated via the same pointer. Adjust only the prototypes so far. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/translator.h | 4 ++-- accel/tcg/translate-all.c | 2 +- accel/tcg/translator.c | 4 ++-- target/alpha/translate.c | 2 +- target/arm/tcg/translate.c | 2 +- target/avr/translate.c | 2 +- target/cris/translate.c | 2 +- target/hexagon/translate.c | 2 +- target/hppa/translate.c | 2 +- target/i386/tcg/translate.c | 2 +- target/loongarch/translate.c | 2 +- target/m68k/translate.c | 2 +- target/microblaze/translate.c | 2 +- target/mips/tcg/translate.c | 2 +- target/nios2/translate.c | 2 +- target/openrisc/translate.c | 2 +- target/ppc/translate.c | 2 +- target/riscv/translate.c | 2 +- target/rx/translate.c | 2 +- target/s390x/tcg/translate.c | 2 +- target/sh4/translate.c | 2 +- target/sparc/translate.c | 2 +- target/tricore/translate.c | 2 +- target/xtensa/translate.c | 2 +- 24 files changed, 26 insertions(+), 26 deletions(-) diff --git a/include/exec/translator.h b/include/exec/translator.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/translator.h +++ b/include/exec/translator.h @@ -XXX,XX +XXX,XX @@ * This function must be provided by the target, which should create * the target-specific DisasContext, and then invoke translator_loop. */ -void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc); /** @@ -XXX,XX +XXX,XX @@ typedef struct TranslatorOps { * - When single-stepping is enabled (system-wide or on the current vCPU). * - When too many instructions have been translated. */ -void translator_loop(CPUState *cpu, TranslationBlock *tb, int max_insns, +void translator_loop(CPUState *cpu, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc, const TranslatorOps *ops, DisasContextBase *db); diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -XXX,XX +XXX,XX @@ static int setjmp_gen_code(CPUArchState *env, TranslationBlock *tb, tcg_func_start(tcg_ctx); tcg_ctx->cpu = env_cpu(env); - gen_intermediate_code(env_cpu(env), tb, *max_insns, pc, host_pc); + gen_intermediate_code(env_cpu(env), tb, max_insns, pc, host_pc); assert(tb->size != 0); tcg_ctx->cpu = NULL; *max_insns = tb->icount; diff --git a/accel/tcg/translator.c b/accel/tcg/translator.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translator.c +++ b/accel/tcg/translator.c @@ -XXX,XX +XXX,XX @@ bool translator_use_goto_tb(DisasContextBase *db, target_ulong dest) return ((db->pc_first ^ dest) & TARGET_PAGE_MASK) == 0; } -void translator_loop(CPUState *cpu, TranslationBlock *tb, int max_insns, +void translator_loop(CPUState *cpu, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc, const TranslatorOps *ops, DisasContextBase *db) { @@ -XXX,XX +XXX,XX @@ void translator_loop(CPUState *cpu, TranslationBlock *tb, int max_insns, db->pc_next = pc; db->is_jmp = DISAS_NEXT; db->num_insns = 0; - db->max_insns = max_insns; + db->max_insns = *max_insns; db->singlestep_enabled = cflags & CF_SINGLE_STEP; db->host_addr[0] = host_pc; db->host_addr[1] = NULL; diff --git a/target/alpha/translate.c b/target/alpha/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/alpha/translate.c +++ b/target/alpha/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps alpha_tr_ops = { .disas_log = alpha_tr_disas_log, }; -void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc; diff --git a/target/arm/tcg/translate.c b/target/arm/tcg/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate.c +++ b/target/arm/tcg/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps thumb_translator_ops = { }; /* generate intermediate code for basic block 'tb'. */ -void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc = { }; diff --git a/target/avr/translate.c b/target/avr/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/avr/translate.c +++ b/target/avr/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps avr_tr_ops = { .disas_log = avr_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc = { }; diff --git a/target/cris/translate.c b/target/cris/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/cris/translate.c +++ b/target/cris/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps cris_tr_ops = { .disas_log = cris_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc; diff --git a/target/hexagon/translate.c b/target/hexagon/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/translate.c +++ b/target/hexagon/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps hexagon_tr_ops = { .disas_log = hexagon_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext ctx; diff --git a/target/hppa/translate.c b/target/hppa/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps hppa_tr_ops = { .disas_log = hppa_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext ctx; diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps i386_tr_ops = { }; /* generate intermediate code for basic block 'tb'. */ -void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc; diff --git a/target/loongarch/translate.c b/target/loongarch/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/loongarch/translate.c +++ b/target/loongarch/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps loongarch_tr_ops = { .disas_log = loongarch_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext ctx; diff --git a/target/m68k/translate.c b/target/m68k/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps m68k_tr_ops = { .disas_log = m68k_tr_disas_log, }; -void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc; diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps mb_tr_ops = { .disas_log = mb_tr_disas_log, }; -void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc; diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/mips/tcg/translate.c +++ b/target/mips/tcg/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps mips_tr_ops = { .disas_log = mips_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext ctx; diff --git a/target/nios2/translate.c b/target/nios2/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/nios2/translate.c +++ b/target/nios2/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps nios2_tr_ops = { .disas_log = nios2_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc; diff --git a/target/openrisc/translate.c b/target/openrisc/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/openrisc/translate.c +++ b/target/openrisc/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps openrisc_tr_ops = { .disas_log = openrisc_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext ctx; diff --git a/target/ppc/translate.c b/target/ppc/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps ppc_tr_ops = { .disas_log = ppc_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext ctx; diff --git a/target/riscv/translate.c b/target/riscv/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps riscv_tr_ops = { .disas_log = riscv_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext ctx; diff --git a/target/rx/translate.c b/target/rx/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/rx/translate.c +++ b/target/rx/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps rx_tr_ops = { .disas_log = rx_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc; diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/s390x/tcg/translate.c +++ b/target/s390x/tcg/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps s390x_tr_ops = { .disas_log = s390x_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc; diff --git a/target/sh4/translate.c b/target/sh4/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/sh4/translate.c +++ b/target/sh4/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps sh4_tr_ops = { .disas_log = sh4_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext ctx; diff --git a/target/sparc/translate.c b/target/sparc/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/sparc/translate.c +++ b/target/sparc/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps sparc_tr_ops = { .disas_log = sparc_tr_disas_log, }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc = {}; diff --git a/target/tricore/translate.c b/target/tricore/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/tricore/translate.c +++ b/target/tricore/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps tricore_tr_ops = { }; -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext ctx; diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/xtensa/translate.c +++ b/target/xtensa/translate.c @@ -XXX,XX +XXX,XX @@ static const TranslatorOps xtensa_translator_ops = { .disas_log = xtensa_tr_disas_log, }; -void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int max_insns, +void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int *max_insns, target_ulong pc, void *host_pc) { DisasContext dc = {}; -- 2.34.1 Write back the number of insns that we attempt to translate, so that if we longjmp out we have a more accurate limit for the next attempt. This results in fewer restarts when some limit is consumed by few instructions. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/translator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/accel/tcg/translator.c b/accel/tcg/translator.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/translator.c +++ b/accel/tcg/translator.c @@ -XXX,XX +XXX,XX @@ void translator_loop(CPUState *cpu, TranslationBlock *tb, int *max_insns, plugin_enabled = plugin_gen_tb_start(cpu, db, cflags & CF_MEMI_ONLY); while (true) { - db->num_insns++; + *max_insns = ++db->num_insns; ops->insn_start(db, cpu); tcg_debug_assert(db->is_jmp == DISAS_NEXT); /* no early exit */ -- 2.34.1 Just because the label reference count is more than 1 does not mean we cannot remove a branch-to-next. By doing this first, the label reference count may drop to 0, and then the label itself gets removed as before. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- tcg/tcg.c | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *old_op, /* Reachable analysis : remove unreachable code. */ static void reachable_code_pass(TCGContext *s) { - TCGOp *op, *op_next; + TCGOp *op, *op_next, *op_prev; bool dead = false; QTAILQ_FOREACH_SAFE(op, &s->ops, link, op_next) { @@ -XXX,XX +XXX,XX @@ static void reachable_code_pass(TCGContext *s) switch (op->opc) { case INDEX_op_set_label: label = arg_label(op->args[0]); + + /* + * Optimization can fold conditional branches to unconditional. + * If we find a label which is preceded by an unconditional + * branch to next, remove the branch. We couldn't do this when + * processing the branch because any dead code between the branch + * and label had not yet been removed. + */ + op_prev = QTAILQ_PREV(op, link); + if (op_prev->opc == INDEX_op_br && + label == arg_label(op_prev->args[0])) { + tcg_op_remove(s, op_prev); + /* Fall through means insns become live again. */ + dead = false; + } + if (label->refs == 0) { /* * While there is an occasional backward branch, virtually @@ -XXX,XX +XXX,XX @@ static void reachable_code_pass(TCGContext *s) /* Once we see a label, insns become live again. */ dead = false; remove = false; - - /* - * Optimization can fold conditional branches to unconditional. - * If we find a label with one reference which is preceded by - * an unconditional branch to it, remove both. This needed to - * wait until the dead code in between them was removed. - */ - if (label->refs == 1) { - TCGOp *op_prev = QTAILQ_PREV(op, link); - if (op_prev->opc == INDEX_op_br && - label == arg_label(op_prev->args[0])) { - tcg_op_remove(s, op_prev); - remove = true; - } - } } break; -- 2.34.1 Use TEMP_TB as that is more explicit about the default lifetime of the data. While "global" and "local" used to be contrasting, we have more lifetimes than that now. Do not yet rename tcg_temp_local_new_*, just the enum. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/tcg/tcg.h | 12 ++++++++---- tcg/optimize.c | 2 +- tcg/tcg.c | 18 +++++++++--------- 3 files changed, 18 insertions(+), 14 deletions(-) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -XXX,XX +XXX,XX @@ typedef enum TCGTempVal { typedef enum TCGTempKind { /* Temp is dead at the end of all basic blocks. */ TEMP_NORMAL, - /* Temp is live across conditional branch, but dead otherwise. */ + /* + * Temp is dead at the end of the extended basic block (EBB), + * the single-entry multiple-exit region that falls through + * conditional branches. + */ TEMP_EBB, - /* Temp is saved across basic blocks but dead at the end of TBs. */ - TEMP_LOCAL, - /* Temp is saved across both basic blocks and translation blocks. */ + /* Temp is live across the entire translation block, but dead at end. */ + TEMP_TB, + /* Temp is live across the entire translation block, and between them. */ TEMP_GLOBAL, /* Temp is in a fixed register. */ TEMP_FIXED, diff --git a/tcg/optimize.c b/tcg/optimize.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -XXX,XX +XXX,XX @@ static TCGTemp *find_better_copy(TCGContext *s, TCGTemp *ts) } else if (i->kind > ts->kind) { if (i->kind == TEMP_GLOBAL) { g = i; - } else if (i->kind == TEMP_LOCAL) { + } else if (i->kind == TEMP_TB) { l = i; } } diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ TCGTemp *tcg_global_mem_new_internal(TCGType type, TCGv_ptr base, TCGTemp *tcg_temp_new_internal(TCGType type, bool temp_local) { TCGContext *s = tcg_ctx; - TCGTempKind kind = temp_local ? TEMP_LOCAL : TEMP_NORMAL; + TCGTempKind kind = temp_local ? TEMP_TB : TEMP_NORMAL; TCGTemp *ts; int idx, k; @@ -XXX,XX +XXX,XX @@ void tcg_temp_free_internal(TCGTemp *ts) */ return; case TEMP_NORMAL: - case TEMP_LOCAL: + case TEMP_TB: break; default: g_assert_not_reached(); @@ -XXX,XX +XXX,XX @@ static void tcg_reg_alloc_start(TCGContext *s) case TEMP_EBB: val = TEMP_VAL_DEAD; /* fall through */ - case TEMP_LOCAL: + case TEMP_TB: ts->mem_allocated = 0; break; default: @@ -XXX,XX +XXX,XX @@ static char *tcg_get_arg_str_ptr(TCGContext *s, char *buf, int buf_size, case TEMP_GLOBAL: pstrcpy(buf, buf_size, ts->name); break; - case TEMP_LOCAL: + case TEMP_TB: snprintf(buf, buf_size, "loc%d", idx - s->nb_globals); break; case TEMP_EBB: @@ -XXX,XX +XXX,XX @@ static void la_bb_end(TCGContext *s, int ng, int nt) switch (ts->kind) { case TEMP_FIXED: case TEMP_GLOBAL: - case TEMP_LOCAL: + case TEMP_TB: state = TS_DEAD | TS_MEM; break; case TEMP_NORMAL: @@ -XXX,XX +XXX,XX @@ static void la_bb_sync(TCGContext *s, int ng, int nt) int state; switch (ts->kind) { - case TEMP_LOCAL: + case TEMP_TB: state = ts->state; ts->state = state | TS_MEM; if (state != TS_DEAD) { @@ -XXX,XX +XXX,XX @@ static void temp_free_or_dead(TCGContext *s, TCGTemp *ts, int free_or_dead) case TEMP_FIXED: return; case TEMP_GLOBAL: - case TEMP_LOCAL: + case TEMP_TB: new_type = TEMP_VAL_MEM; break; case TEMP_NORMAL: @@ -XXX,XX +XXX,XX @@ static void tcg_reg_alloc_bb_end(TCGContext *s, TCGRegSet allocated_regs) TCGTemp *ts = &s->temps[i]; switch (ts->kind) { - case TEMP_LOCAL: + case TEMP_TB: temp_save(s, ts, allocated_regs); break; case TEMP_NORMAL: @@ -XXX,XX +XXX,XX @@ static void tcg_reg_alloc_cbranch(TCGContext *s, TCGRegSet allocated_regs) * Keep tcg_debug_asserts for safety. */ switch (ts->kind) { - case TEMP_LOCAL: + case TEMP_TB: tcg_debug_assert(ts->val_type != TEMP_VAL_REG || ts->mem_coherent); break; case TEMP_NORMAL: -- 2.34.1 This makes it easier to assign blame with perf. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- tcg/tcg.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *old_op, } /* Reachable analysis : remove unreachable code. */ -static void reachable_code_pass(TCGContext *s) +static void __attribute__((noinline)) +reachable_code_pass(TCGContext *s) { TCGOp *op, *op_next, *op_prev; bool dead = false; @@ -XXX,XX +XXX,XX @@ static void la_cross_call(TCGContext *s, int nt) /* Liveness analysis : update the opc_arg_life array to tell if a given input arguments is dead. Instructions updating dead temporaries are removed. */ -static void liveness_pass_1(TCGContext *s) +static void __attribute__((noinline)) +liveness_pass_1(TCGContext *s) { int nb_globals = s->nb_globals; int nb_temps = s->nb_temps; @@ -XXX,XX +XXX,XX @@ static void liveness_pass_1(TCGContext *s) } /* Liveness analysis: Convert indirect regs to direct temporaries. */ -static bool liveness_pass_2(TCGContext *s) +static bool __attribute__((noinline)) +liveness_pass_2(TCGContext *s) { int nb_globals = s->nb_globals; int nb_temps, i; -- 2.34.1 Attempt to reduce the lifetime of TEMP_TB. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- tcg/tcg.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ static void la_cross_call(TCGContext *s, int nt) } } +/* + * Liveness analysis: Verify the lifetime of TEMP_TB, and reduce + * to TEMP_EBB, if possible. + */ +static void __attribute__((noinline)) +liveness_pass_0(TCGContext *s) +{ + void * const multiple_ebb = (void *)(uintptr_t)-1; + int nb_temps = s->nb_temps; + TCGOp *op, *ebb; + + for (int i = s->nb_globals; i < nb_temps; ++i) { + s->temps[i].state_ptr = NULL; + } + + /* + * Represent each EBB by the op at which it begins. In the case of + * the first EBB, this is the first op, otherwise it is a label. + * Collect the uses of each TEMP_TB: NULL for unused, EBB for use + * within a single EBB, else MULTIPLE_EBB. + */ + ebb = QTAILQ_FIRST(&s->ops); + QTAILQ_FOREACH(op, &s->ops, link) { + const TCGOpDef *def; + int nb_oargs, nb_iargs; + + switch (op->opc) { + case INDEX_op_set_label: + ebb = op; + continue; + case INDEX_op_discard: + continue; + case INDEX_op_call: + nb_oargs = TCGOP_CALLO(op); + nb_iargs = TCGOP_CALLI(op); + break; + default: + def = &tcg_op_defs[op->opc]; + nb_oargs = def->nb_oargs; + nb_iargs = def->nb_iargs; + break; + } + + for (int i = 0; i < nb_oargs + nb_iargs; ++i) { + TCGTemp *ts = arg_temp(op->args[i]); + + if (ts->kind != TEMP_TB) { + continue; + } + if (ts->state_ptr == NULL) { + ts->state_ptr = ebb; + } else if (ts->state_ptr != ebb) { + ts->state_ptr = multiple_ebb; + } + } + } + + /* + * For TEMP_TB that turned out not to be used beyond one EBB, + * reduce the liveness to TEMP_EBB. + */ + for (int i = s->nb_globals; i < nb_temps; ++i) { + TCGTemp *ts = &s->temps[i]; + if (ts->kind == TEMP_TB && ts->state_ptr != multiple_ebb) { + ts->kind = TEMP_EBB; + } + } +} + /* Liveness analysis : update the opc_arg_life array to tell if a given input arguments is dead. Instructions updating dead temporaries are removed. */ @@ -XXX,XX +XXX,XX @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb, target_ulong pc_start) #endif reachable_code_pass(s); + liveness_pass_0(s); liveness_pass_1(s); if (s->nb_indirects > 0) { -- 2.34.1 TEMP_NORMAL is a subset of TEMP_EBB. Promote single basic block temps to single extended basic block. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/tcg/tcg.h | 2 -- tcg/tcg.c | 19 +++---------------- 2 files changed, 3 insertions(+), 18 deletions(-) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -XXX,XX +XXX,XX @@ typedef enum TCGTempVal { } TCGTempVal; typedef enum TCGTempKind { - /* Temp is dead at the end of all basic blocks. */ - TEMP_NORMAL, /* * Temp is dead at the end of the extended basic block (EBB), * the single-entry multiple-exit region that falls through diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ TCGTemp *tcg_global_mem_new_internal(TCGType type, TCGv_ptr base, TCGTemp *tcg_temp_new_internal(TCGType type, bool temp_local) { TCGContext *s = tcg_ctx; - TCGTempKind kind = temp_local ? TEMP_TB : TEMP_NORMAL; + TCGTempKind kind = temp_local ? TEMP_TB : TEMP_EBB; TCGTemp *ts; int idx, k; @@ -XXX,XX +XXX,XX @@ void tcg_temp_free_internal(TCGTemp *ts) * silently ignore free. */ return; - case TEMP_NORMAL: + case TEMP_EBB: case TEMP_TB: break; default: @@ -XXX,XX +XXX,XX @@ void tcg_temp_free_internal(TCGTemp *ts) #endif idx = temp_idx(ts); - k = ts->base_type + (ts->kind == TEMP_NORMAL ? 0 : TCG_TYPE_COUNT); + k = ts->base_type + (ts->kind == TEMP_EBB ? 0 : TCG_TYPE_COUNT); set_bit(idx, s->free_temps[k].l); } @@ -XXX,XX +XXX,XX @@ static void tcg_reg_alloc_start(TCGContext *s) break; case TEMP_GLOBAL: break; - case TEMP_NORMAL: case TEMP_EBB: val = TEMP_VAL_DEAD; /* fall through */ @@ -XXX,XX +XXX,XX @@ static char *tcg_get_arg_str_ptr(TCGContext *s, char *buf, int buf_size, snprintf(buf, buf_size, "loc%d", idx - s->nb_globals); break; case TEMP_EBB: - snprintf(buf, buf_size, "ebb%d", idx - s->nb_globals); - break; - case TEMP_NORMAL: snprintf(buf, buf_size, "tmp%d", idx - s->nb_globals); break; case TEMP_CONST: @@ -XXX,XX +XXX,XX @@ static void la_bb_end(TCGContext *s, int ng, int nt) case TEMP_TB: state = TS_DEAD | TS_MEM; break; - case TEMP_NORMAL: case TEMP_EBB: case TEMP_CONST: state = TS_DEAD; @@ -XXX,XX +XXX,XX @@ static void la_bb_sync(TCGContext *s, int ng, int nt) continue; } break; - case TEMP_NORMAL: - s->temps[i].state = TS_DEAD; - break; case TEMP_EBB: case TEMP_CONST: continue; @@ -XXX,XX +XXX,XX @@ static void temp_free_or_dead(TCGContext *s, TCGTemp *ts, int free_or_dead) case TEMP_TB: new_type = TEMP_VAL_MEM; break; - case TEMP_NORMAL: case TEMP_EBB: new_type = free_or_dead < 0 ? TEMP_VAL_MEM : TEMP_VAL_DEAD; break; @@ -XXX,XX +XXX,XX @@ static void tcg_reg_alloc_bb_end(TCGContext *s, TCGRegSet allocated_regs) case TEMP_TB: temp_save(s, ts, allocated_regs); break; - case TEMP_NORMAL: case TEMP_EBB: /* The liveness analysis already ensures that temps are dead. Keep an tcg_debug_assert for safety. */ @@ -XXX,XX +XXX,XX @@ static void tcg_reg_alloc_cbranch(TCGContext *s, TCGRegSet allocated_regs) case TEMP_TB: tcg_debug_assert(ts->val_type != TEMP_VAL_REG || ts->mem_coherent); break; - case TEMP_NORMAL: - tcg_debug_assert(ts->val_type == TEMP_VAL_DEAD); - break; case TEMP_EBB: case TEMP_CONST: break; -- 2.34.1 While the argument can only be TEMP_EBB or TEMP_TB, it's more obvious this way. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/tcg/tcg.h | 18 +++++++++--------- tcg/tcg.c | 8 ++++---- 2 files changed, 13 insertions(+), 13 deletions(-) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -XXX,XX +XXX,XX @@ void tcg_set_frame(TCGContext *s, TCGReg reg, intptr_t start, intptr_t size); TCGTemp *tcg_global_mem_new_internal(TCGType, TCGv_ptr, intptr_t, const char *); -TCGTemp *tcg_temp_new_internal(TCGType, bool); +TCGTemp *tcg_temp_new_internal(TCGType, TCGTempKind); void tcg_temp_free_internal(TCGTemp *); TCGv_vec tcg_temp_new_vec(TCGType type); TCGv_vec tcg_temp_new_vec_matching(TCGv_vec match); @@ -XXX,XX +XXX,XX @@ static inline TCGv_i32 tcg_global_mem_new_i32(TCGv_ptr reg, intptr_t offset, static inline TCGv_i32 tcg_temp_new_i32(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, false); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, TEMP_EBB); return temp_tcgv_i32(t); } static inline TCGv_i32 tcg_temp_local_new_i32(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, true); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, TEMP_TB); return temp_tcgv_i32(t); } @@ -XXX,XX +XXX,XX @@ static inline TCGv_i64 tcg_global_mem_new_i64(TCGv_ptr reg, intptr_t offset, static inline TCGv_i64 tcg_temp_new_i64(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, false); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, TEMP_EBB); return temp_tcgv_i64(t); } static inline TCGv_i64 tcg_temp_local_new_i64(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, true); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, TEMP_TB); return temp_tcgv_i64(t); } static inline TCGv_i128 tcg_temp_new_i128(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, false); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, TEMP_EBB); return temp_tcgv_i128(t); } static inline TCGv_i128 tcg_temp_local_new_i128(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, true); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, TEMP_TB); return temp_tcgv_i128(t); } @@ -XXX,XX +XXX,XX @@ static inline TCGv_ptr tcg_global_mem_new_ptr(TCGv_ptr reg, intptr_t offset, static inline TCGv_ptr tcg_temp_new_ptr(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, false); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, TEMP_EBB); return temp_tcgv_ptr(t); } static inline TCGv_ptr tcg_temp_local_new_ptr(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, true); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, TEMP_TB); return temp_tcgv_ptr(t); } diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ TCGTemp *tcg_global_mem_new_internal(TCGType type, TCGv_ptr base, return ts; } -TCGTemp *tcg_temp_new_internal(TCGType type, bool temp_local) +TCGTemp *tcg_temp_new_internal(TCGType type, TCGTempKind kind) { TCGContext *s = tcg_ctx; - TCGTempKind kind = temp_local ? TEMP_TB : TEMP_EBB; + bool temp_local = kind == TEMP_TB; TCGTemp *ts; int idx, k; @@ -XXX,XX +XXX,XX @@ TCGv_vec tcg_temp_new_vec(TCGType type) } #endif - t = tcg_temp_new_internal(type, 0); + t = tcg_temp_new_internal(type, TEMP_EBB); return temp_tcgv_vec(t); } @@ -XXX,XX +XXX,XX @@ TCGv_vec tcg_temp_new_vec_matching(TCGv_vec match) tcg_debug_assert(t->temp_allocated != 0); - t = tcg_temp_new_internal(t->base_type, 0); + t = tcg_temp_new_internal(t->base_type, TEMP_EBB); return temp_tcgv_vec(t); } -- 2.34.1 Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/gen-icount.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/include/exec/gen-icount.h b/include/exec/gen-icount.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/gen-icount.h +++ b/include/exec/gen-icount.h @@ -XXX,XX +XXX,XX @@ static TCGOp *icount_start_insn; static inline void gen_io_start(void) { - TCGv_i32 tmp = tcg_const_i32(1); - tcg_gen_st_i32(tmp, cpu_env, + tcg_gen_st_i32(tcg_constant_i32(1), cpu_env, offsetof(ArchCPU, parent_obj.can_do_io) - offsetof(ArchCPU, env)); - tcg_temp_free_i32(tmp); } static inline void gen_tb_start(const TranslationBlock *tb) -- 2.34.1 Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/tcg/tcg-op.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/tcg/tcg-op.h b/include/tcg/tcg-op.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg-op.h +++ b/include/tcg/tcg-op.h @@ -XXX,XX +XXX,XX @@ static inline void tcg_gen_mov_ptr(TCGv_ptr d, TCGv_ptr s) glue(tcg_gen_mov_,PTR)((NAT)d, (NAT)s); } +static inline void tcg_gen_movi_ptr(TCGv_ptr d, intptr_t s) +{ + glue(tcg_gen_movi_,PTR)((NAT)d, s); +} + static inline void tcg_gen_brcondi_ptr(TCGCond cond, TCGv_ptr a, intptr_t b, TCGLabel *label) { -- 2.34.1 TCG internals will want to be able to allocate and reuse explicitly life-limited temporaries. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/tcg/tcg.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -XXX,XX +XXX,XX @@ static inline TCGv_i32 tcg_global_mem_new_i32(TCGv_ptr reg, intptr_t offset, return temp_tcgv_i32(t); } +/* Used only by tcg infrastructure: tcg-op.c or plugin-gen.c */ +static inline TCGv_i32 tcg_temp_ebb_new_i32(void) +{ + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, TEMP_EBB); + return temp_tcgv_i32(t); +} + static inline TCGv_i32 tcg_temp_new_i32(void) { TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, TEMP_EBB); @@ -XXX,XX +XXX,XX @@ static inline TCGv_i64 tcg_global_mem_new_i64(TCGv_ptr reg, intptr_t offset, return temp_tcgv_i64(t); } +/* Used only by tcg infrastructure: tcg-op.c or plugin-gen.c */ +static inline TCGv_i64 tcg_temp_ebb_new_i64(void) +{ + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, TEMP_EBB); + return temp_tcgv_i64(t); +} + static inline TCGv_i64 tcg_temp_new_i64(void) { TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, TEMP_EBB); @@ -XXX,XX +XXX,XX @@ static inline TCGv_i64 tcg_temp_local_new_i64(void) return temp_tcgv_i64(t); } +/* Used only by tcg infrastructure: tcg-op.c or plugin-gen.c */ +static inline TCGv_i128 tcg_temp_ebb_new_i128(void) +{ + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, TEMP_EBB); + return temp_tcgv_i128(t); +} + static inline TCGv_i128 tcg_temp_new_i128(void) { TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, TEMP_EBB); @@ -XXX,XX +XXX,XX @@ static inline TCGv_ptr tcg_global_mem_new_ptr(TCGv_ptr reg, intptr_t offset, return temp_tcgv_ptr(t); } +/* Used only by tcg infrastructure: tcg-op.c or plugin-gen.c */ +static inline TCGv_ptr tcg_temp_ebb_new_ptr(void) +{ + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, TEMP_EBB); + return temp_tcgv_ptr(t); +} + static inline TCGv_ptr tcg_temp_new_ptr(void) { TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, TEMP_EBB); -- 2.34.1 All of these have obvious and quite local scope. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- tcg/tcg-op-gvec.c | 186 ++++++++++++++++----------------- tcg/tcg-op.c | 258 +++++++++++++++++++++++----------------------- tcg/tcg.c | 2 +- 3 files changed, 223 insertions(+), 223 deletions(-) diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg-op-gvec.c +++ b/tcg/tcg-op-gvec.c @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_2_ool(uint32_t dofs, uint32_t aofs, TCGv_ptr a0, a1; TCGv_i32 desc = tcg_constant_i32(simd_desc(oprsz, maxsz, data)); - a0 = tcg_temp_new_ptr(); - a1 = tcg_temp_new_ptr(); + a0 = tcg_temp_ebb_new_ptr(); + a1 = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(a0, cpu_env, dofs); tcg_gen_addi_ptr(a1, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_2i_ool(uint32_t dofs, uint32_t aofs, TCGv_i64 c, TCGv_ptr a0, a1; TCGv_i32 desc = tcg_constant_i32(simd_desc(oprsz, maxsz, data)); - a0 = tcg_temp_new_ptr(); - a1 = tcg_temp_new_ptr(); + a0 = tcg_temp_ebb_new_ptr(); + a1 = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(a0, cpu_env, dofs); tcg_gen_addi_ptr(a1, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_3_ool(uint32_t dofs, uint32_t aofs, uint32_t bofs, TCGv_ptr a0, a1, a2; TCGv_i32 desc = tcg_constant_i32(simd_desc(oprsz, maxsz, data)); - a0 = tcg_temp_new_ptr(); - a1 = tcg_temp_new_ptr(); - a2 = tcg_temp_new_ptr(); + a0 = tcg_temp_ebb_new_ptr(); + a1 = tcg_temp_ebb_new_ptr(); + a2 = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(a0, cpu_env, dofs); tcg_gen_addi_ptr(a1, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_4_ool(uint32_t dofs, uint32_t aofs, uint32_t bofs, TCGv_ptr a0, a1, a2, a3; TCGv_i32 desc = tcg_constant_i32(simd_desc(oprsz, maxsz, data)); - a0 = tcg_temp_new_ptr(); - a1 = tcg_temp_new_ptr(); - a2 = tcg_temp_new_ptr(); - a3 = tcg_temp_new_ptr(); + a0 = tcg_temp_ebb_new_ptr(); + a1 = tcg_temp_ebb_new_ptr(); + a2 = tcg_temp_ebb_new_ptr(); + a3 = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(a0, cpu_env, dofs); tcg_gen_addi_ptr(a1, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_5_ool(uint32_t dofs, uint32_t aofs, uint32_t bofs, TCGv_ptr a0, a1, a2, a3, a4; TCGv_i32 desc = tcg_constant_i32(simd_desc(oprsz, maxsz, data)); - a0 = tcg_temp_new_ptr(); - a1 = tcg_temp_new_ptr(); - a2 = tcg_temp_new_ptr(); - a3 = tcg_temp_new_ptr(); - a4 = tcg_temp_new_ptr(); + a0 = tcg_temp_ebb_new_ptr(); + a1 = tcg_temp_ebb_new_ptr(); + a2 = tcg_temp_ebb_new_ptr(); + a3 = tcg_temp_ebb_new_ptr(); + a4 = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(a0, cpu_env, dofs); tcg_gen_addi_ptr(a1, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_2_ptr(uint32_t dofs, uint32_t aofs, TCGv_ptr a0, a1; TCGv_i32 desc = tcg_constant_i32(simd_desc(oprsz, maxsz, data)); - a0 = tcg_temp_new_ptr(); - a1 = tcg_temp_new_ptr(); + a0 = tcg_temp_ebb_new_ptr(); + a1 = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(a0, cpu_env, dofs); tcg_gen_addi_ptr(a1, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_3_ptr(uint32_t dofs, uint32_t aofs, uint32_t bofs, TCGv_ptr a0, a1, a2; TCGv_i32 desc = tcg_constant_i32(simd_desc(oprsz, maxsz, data)); - a0 = tcg_temp_new_ptr(); - a1 = tcg_temp_new_ptr(); - a2 = tcg_temp_new_ptr(); + a0 = tcg_temp_ebb_new_ptr(); + a1 = tcg_temp_ebb_new_ptr(); + a2 = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(a0, cpu_env, dofs); tcg_gen_addi_ptr(a1, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_4_ptr(uint32_t dofs, uint32_t aofs, uint32_t bofs, TCGv_ptr a0, a1, a2, a3; TCGv_i32 desc = tcg_constant_i32(simd_desc(oprsz, maxsz, data)); - a0 = tcg_temp_new_ptr(); - a1 = tcg_temp_new_ptr(); - a2 = tcg_temp_new_ptr(); - a3 = tcg_temp_new_ptr(); + a0 = tcg_temp_ebb_new_ptr(); + a1 = tcg_temp_ebb_new_ptr(); + a2 = tcg_temp_ebb_new_ptr(); + a3 = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(a0, cpu_env, dofs); tcg_gen_addi_ptr(a1, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_5_ptr(uint32_t dofs, uint32_t aofs, uint32_t bofs, TCGv_ptr a0, a1, a2, a3, a4; TCGv_i32 desc = tcg_constant_i32(simd_desc(oprsz, maxsz, data)); - a0 = tcg_temp_new_ptr(); - a1 = tcg_temp_new_ptr(); - a2 = tcg_temp_new_ptr(); - a3 = tcg_temp_new_ptr(); - a4 = tcg_temp_new_ptr(); + a0 = tcg_temp_ebb_new_ptr(); + a1 = tcg_temp_ebb_new_ptr(); + a2 = tcg_temp_ebb_new_ptr(); + a3 = tcg_temp_ebb_new_ptr(); + a4 = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(a0, cpu_env, dofs); tcg_gen_addi_ptr(a1, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ static void do_dup(unsigned vece, uint32_t dofs, uint32_t oprsz, be simple enough. */ if (TCG_TARGET_REG_BITS == 64 && (vece != MO_32 || !check_size_impl(oprsz, 4))) { - t_64 = tcg_temp_new_i64(); + t_64 = tcg_temp_ebb_new_i64(); tcg_gen_extu_i32_i64(t_64, in_32); tcg_gen_dup_i64(vece, t_64, t_64); } else { - t_32 = tcg_temp_new_i32(); + t_32 = tcg_temp_ebb_new_i32(); tcg_gen_dup_i32(vece, t_32, in_32); } } else if (in_64) { /* We are given a 64-bit variable input. */ - t_64 = tcg_temp_new_i64(); + t_64 = tcg_temp_ebb_new_i64(); tcg_gen_dup_i64(vece, t_64, in_64); } else { /* We are given a constant input. */ @@ -XXX,XX +XXX,XX @@ static void do_dup(unsigned vece, uint32_t dofs, uint32_t oprsz, } /* Otherwise implement out of line. */ - t_ptr = tcg_temp_new_ptr(); + t_ptr = tcg_temp_ebb_new_ptr(); tcg_gen_addi_ptr(t_ptr, cpu_env, dofs); /* @@ -XXX,XX +XXX,XX @@ static void do_dup(unsigned vece, uint32_t dofs, uint32_t oprsz, if (in_32) { t_val = in_32; } else if (in_64) { - t_val = tcg_temp_new_i32(); + t_val = tcg_temp_ebb_new_i32(); tcg_gen_extrl_i64_i32(t_val, in_64); } else { t_val = tcg_constant_i32(in_c); @@ -XXX,XX +XXX,XX @@ static void do_dup(unsigned vece, uint32_t dofs, uint32_t oprsz, if (in_32) { fns[vece](t_ptr, t_desc, in_32); } else if (in_64) { - t_32 = tcg_temp_new_i32(); + t_32 = tcg_temp_ebb_new_i32(); tcg_gen_extrl_i64_i32(t_32, in_64); fns[vece](t_ptr, t_desc, t_32); tcg_temp_free_i32(t_32); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs, do_dup_store(type, dofs, oprsz, maxsz, t_vec); tcg_temp_free_vec(t_vec); } else if (vece <= MO_32) { - TCGv_i32 in = tcg_temp_new_i32(); + TCGv_i32 in = tcg_temp_ebb_new_i32(); switch (vece) { case MO_8: tcg_gen_ld8u_i32(in, cpu_env, aofs); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs, do_dup(vece, dofs, oprsz, maxsz, in, NULL, 0); tcg_temp_free_i32(in); } else { - TCGv_i64 in = tcg_temp_new_i64(); + TCGv_i64 in = tcg_temp_ebb_new_i64(); tcg_gen_ld_i64(in, cpu_env, aofs); do_dup(vece, dofs, oprsz, maxsz, NULL, in, 0); tcg_temp_free_i64(in); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs, } tcg_temp_free_vec(in); } else { - TCGv_i64 in0 = tcg_temp_new_i64(); - TCGv_i64 in1 = tcg_temp_new_i64(); + TCGv_i64 in0 = tcg_temp_ebb_new_i64(); + TCGv_i64 in1 = tcg_temp_ebb_new_i64(); tcg_gen_ld_i64(in0, cpu_env, aofs); tcg_gen_ld_i64(in1, cpu_env, aofs + 8); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs, int j; for (j = 0; j < 4; ++j) { - in[j] = tcg_temp_new_i64(); + in[j] = tcg_temp_ebb_new_i64(); tcg_gen_ld_i64(in[j], cpu_env, aofs + j * 8); } for (i = (aofs == dofs) * 32; i < oprsz; i += 32) { @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_not(unsigned vece, uint32_t dofs, uint32_t aofs, the 64-bit operation. */ static void gen_addv_mask(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b, TCGv_i64 m) { - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); - TCGv_i64 t3 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); + TCGv_i64 t3 = tcg_temp_ebb_new_i64(); tcg_gen_andc_i64(t1, a, m); tcg_gen_andc_i64(t2, b, m); @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_add8_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) void tcg_gen_vec_add8_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) { TCGv_i32 m = tcg_constant_i32((int32_t)dup_const(MO_8, 0x80)); - TCGv_i32 t1 = tcg_temp_new_i32(); - TCGv_i32 t2 = tcg_temp_new_i32(); - TCGv_i32 t3 = tcg_temp_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); + TCGv_i32 t2 = tcg_temp_ebb_new_i32(); + TCGv_i32 t3 = tcg_temp_ebb_new_i32(); tcg_gen_andc_i32(t1, a, m); tcg_gen_andc_i32(t2, b, m); @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_add16_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) void tcg_gen_vec_add16_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) { - TCGv_i32 t1 = tcg_temp_new_i32(); - TCGv_i32 t2 = tcg_temp_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); + TCGv_i32 t2 = tcg_temp_ebb_new_i32(); tcg_gen_andi_i32(t1, a, ~0xffff); tcg_gen_add_i32(t2, a, b); @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_add16_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) void tcg_gen_vec_add32_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) { - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); tcg_gen_andi_i64(t1, a, ~0xffffffffull); tcg_gen_add_i64(t2, a, b); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_subs(unsigned vece, uint32_t dofs, uint32_t aofs, Compare gen_addv_mask above. */ static void gen_subv_mask(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b, TCGv_i64 m) { - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); - TCGv_i64 t3 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); + TCGv_i64 t3 = tcg_temp_ebb_new_i64(); tcg_gen_or_i64(t1, a, m); tcg_gen_andc_i64(t2, b, m); @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_sub8_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) void tcg_gen_vec_sub8_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) { TCGv_i32 m = tcg_constant_i32((int32_t)dup_const(MO_8, 0x80)); - TCGv_i32 t1 = tcg_temp_new_i32(); - TCGv_i32 t2 = tcg_temp_new_i32(); - TCGv_i32 t3 = tcg_temp_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); + TCGv_i32 t2 = tcg_temp_ebb_new_i32(); + TCGv_i32 t3 = tcg_temp_ebb_new_i32(); tcg_gen_or_i32(t1, a, m); tcg_gen_andc_i32(t2, b, m); @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_sub16_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) void tcg_gen_vec_sub16_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) { - TCGv_i32 t1 = tcg_temp_new_i32(); - TCGv_i32 t2 = tcg_temp_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); + TCGv_i32 t2 = tcg_temp_ebb_new_i32(); tcg_gen_andi_i32(t1, b, ~0xffff); tcg_gen_sub_i32(t2, a, b); @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_sub16_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) void tcg_gen_vec_sub32_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) { - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); tcg_gen_andi_i64(t1, b, ~0xffffffffull); tcg_gen_sub_i64(t2, a, b); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_umax(unsigned vece, uint32_t dofs, uint32_t aofs, Compare gen_subv_mask above. */ static void gen_negv_mask(TCGv_i64 d, TCGv_i64 b, TCGv_i64 m) { - TCGv_i64 t2 = tcg_temp_new_i64(); - TCGv_i64 t3 = tcg_temp_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); + TCGv_i64 t3 = tcg_temp_ebb_new_i64(); tcg_gen_andc_i64(t3, m, b); tcg_gen_andc_i64(t2, b, m); @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_neg16_i64(TCGv_i64 d, TCGv_i64 b) void tcg_gen_vec_neg32_i64(TCGv_i64 d, TCGv_i64 b) { - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); tcg_gen_andi_i64(t1, b, ~0xffffffffull); tcg_gen_neg_i64(t2, b); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_neg(unsigned vece, uint32_t dofs, uint32_t aofs, static void gen_absv_mask(TCGv_i64 d, TCGv_i64 b, unsigned vece) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); int nbit = 8 << vece; /* Create -1 for each negative element. */ @@ -XXX,XX +XXX,XX @@ static const GVecGen2s gop_ands = { void tcg_gen_gvec_ands(unsigned vece, uint32_t dofs, uint32_t aofs, TCGv_i64 c, uint32_t oprsz, uint32_t maxsz) { - TCGv_i64 tmp = tcg_temp_new_i64(); + TCGv_i64 tmp = tcg_temp_ebb_new_i64(); tcg_gen_dup_i64(vece, tmp, c); tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_ands); tcg_temp_free_i64(tmp); @@ -XXX,XX +XXX,XX @@ static const GVecGen2s gop_xors = { void tcg_gen_gvec_xors(unsigned vece, uint32_t dofs, uint32_t aofs, TCGv_i64 c, uint32_t oprsz, uint32_t maxsz) { - TCGv_i64 tmp = tcg_temp_new_i64(); + TCGv_i64 tmp = tcg_temp_ebb_new_i64(); tcg_gen_dup_i64(vece, tmp, c); tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_xors); tcg_temp_free_i64(tmp); @@ -XXX,XX +XXX,XX @@ static const GVecGen2s gop_ors = { void tcg_gen_gvec_ors(unsigned vece, uint32_t dofs, uint32_t aofs, TCGv_i64 c, uint32_t oprsz, uint32_t maxsz) { - TCGv_i64 tmp = tcg_temp_new_i64(); + TCGv_i64 tmp = tcg_temp_ebb_new_i64(); tcg_gen_dup_i64(vece, tmp, c); tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, tmp, &gop_ors); tcg_temp_free_i64(tmp); @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_sar8i_i64(TCGv_i64 d, TCGv_i64 a, int64_t c) { uint64_t s_mask = dup_const(MO_8, 0x80 >> c); uint64_t c_mask = dup_const(MO_8, 0xff >> c); - TCGv_i64 s = tcg_temp_new_i64(); + TCGv_i64 s = tcg_temp_ebb_new_i64(); tcg_gen_shri_i64(d, a, c); tcg_gen_andi_i64(s, d, s_mask); /* isolate (shifted) sign bit */ @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_sar16i_i64(TCGv_i64 d, TCGv_i64 a, int64_t c) { uint64_t s_mask = dup_const(MO_16, 0x8000 >> c); uint64_t c_mask = dup_const(MO_16, 0xffff >> c); - TCGv_i64 s = tcg_temp_new_i64(); + TCGv_i64 s = tcg_temp_ebb_new_i64(); tcg_gen_shri_i64(d, a, c); tcg_gen_andi_i64(s, d, s_mask); /* isolate (shifted) sign bit */ @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_sar8i_i32(TCGv_i32 d, TCGv_i32 a, int32_t c) { uint32_t s_mask = dup_const(MO_8, 0x80 >> c); uint32_t c_mask = dup_const(MO_8, 0xff >> c); - TCGv_i32 s = tcg_temp_new_i32(); + TCGv_i32 s = tcg_temp_ebb_new_i32(); tcg_gen_shri_i32(d, a, c); tcg_gen_andi_i32(s, d, s_mask); /* isolate (shifted) sign bit */ @@ -XXX,XX +XXX,XX @@ void tcg_gen_vec_sar16i_i32(TCGv_i32 d, TCGv_i32 a, int32_t c) { uint32_t s_mask = dup_const(MO_16, 0x8000 >> c); uint32_t c_mask = dup_const(MO_16, 0xffff >> c); - TCGv_i32 s = tcg_temp_new_i32(); + TCGv_i32 s = tcg_temp_ebb_new_i32(); tcg_gen_shri_i32(d, a, c); tcg_gen_andi_i32(s, d, s_mask); /* isolate (shifted) sign bit */ @@ -XXX,XX +XXX,XX @@ do_gvec_shifts(unsigned vece, uint32_t dofs, uint32_t aofs, TCGv_i32 shift, TCGv_vec v_shift = tcg_temp_new_vec(type); if (vece == MO_64) { - TCGv_i64 sh64 = tcg_temp_new_i64(); + TCGv_i64 sh64 = tcg_temp_ebb_new_i64(); tcg_gen_extu_i32_i64(sh64, shift); tcg_gen_dup_i64_vec(MO_64, v_shift, sh64); tcg_temp_free_i64(sh64); @@ -XXX,XX +XXX,XX @@ do_gvec_shifts(unsigned vece, uint32_t dofs, uint32_t aofs, TCGv_i32 shift, if (vece == MO_32 && check_size_impl(oprsz, 4)) { expand_2s_i32(dofs, aofs, oprsz, shift, false, g->fni4); } else if (vece == MO_64 && check_size_impl(oprsz, 8)) { - TCGv_i64 sh64 = tcg_temp_new_i64(); + TCGv_i64 sh64 = tcg_temp_ebb_new_i64(); tcg_gen_extu_i32_i64(sh64, shift); expand_2s_i64(dofs, aofs, oprsz, sh64, false, g->fni8); tcg_temp_free_i64(sh64); } else { - TCGv_ptr a0 = tcg_temp_new_ptr(); - TCGv_ptr a1 = tcg_temp_new_ptr(); - TCGv_i32 desc = tcg_temp_new_i32(); + TCGv_ptr a0 = tcg_temp_ebb_new_ptr(); + TCGv_ptr a1 = tcg_temp_ebb_new_ptr(); + TCGv_i32 desc = tcg_temp_ebb_new_i32(); tcg_gen_shli_i32(desc, shift, SIMD_DATA_SHIFT); tcg_gen_ori_i32(desc, desc, simd_desc(oprsz, maxsz, 0)); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_shlv_mod_vec(unsigned vece, TCGv_vec d, static void tcg_gen_shl_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_andi_i32(t, b, 31); tcg_gen_shl_i32(d, a, t); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_shl_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) static void tcg_gen_shl_mod_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_andi_i64(t, b, 63); tcg_gen_shl_i64(d, a, t); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_shrv_mod_vec(unsigned vece, TCGv_vec d, static void tcg_gen_shr_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_andi_i32(t, b, 31); tcg_gen_shr_i32(d, a, t); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_shr_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) static void tcg_gen_shr_mod_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_andi_i64(t, b, 63); tcg_gen_shr_i64(d, a, t); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_sarv_mod_vec(unsigned vece, TCGv_vec d, static void tcg_gen_sar_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_andi_i32(t, b, 31); tcg_gen_sar_i32(d, a, t); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_sar_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) static void tcg_gen_sar_mod_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_andi_i64(t, b, 63); tcg_gen_sar_i64(d, a, t); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_rotlv_mod_vec(unsigned vece, TCGv_vec d, static void tcg_gen_rotl_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_andi_i32(t, b, 31); tcg_gen_rotl_i32(d, a, t); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_rotl_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) static void tcg_gen_rotl_mod_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_andi_i64(t, b, 63); tcg_gen_rotl_i64(d, a, t); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_rotrv_mod_vec(unsigned vece, TCGv_vec d, static void tcg_gen_rotr_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_andi_i32(t, b, 31); tcg_gen_rotr_i32(d, a, t); @@ -XXX,XX +XXX,XX @@ static void tcg_gen_rotr_mod_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) static void tcg_gen_rotr_mod_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_andi_i64(t, b, 63); tcg_gen_rotr_i64(d, a, t); @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_rotrv(unsigned vece, uint32_t dofs, uint32_t aofs, static void expand_cmp_i32(uint32_t dofs, uint32_t aofs, uint32_t bofs, uint32_t oprsz, TCGCond cond) { - TCGv_i32 t0 = tcg_temp_new_i32(); - TCGv_i32 t1 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); uint32_t i; for (i = 0; i < oprsz; i += 4) { @@ -XXX,XX +XXX,XX @@ static void expand_cmp_i32(uint32_t dofs, uint32_t aofs, uint32_t bofs, static void expand_cmp_i64(uint32_t dofs, uint32_t aofs, uint32_t bofs, uint32_t oprsz, TCGCond cond) { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); uint32_t i; for (i = 0; i < oprsz; i += 8) { @@ -XXX,XX +XXX,XX @@ void tcg_gen_gvec_cmp(TCGCond cond, unsigned vece, uint32_t dofs, static void tcg_gen_bitsel_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b, TCGv_i64 c) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_and_i64(t, b, a); tcg_gen_andc_i64(d, c, a); diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -XXX,XX +XXX,XX @@ void tcg_gen_div_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_div_i32) { tcg_gen_op3_i32(INDEX_op_div_i32, ret, arg1, arg2); } else if (TCG_TARGET_HAS_div2_i32) { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_sari_i32(t0, arg1, 31); tcg_gen_op5_i32(INDEX_op_div2_i32, ret, t0, arg1, t0, arg2); tcg_temp_free_i32(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_rem_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_rem_i32) { tcg_gen_op3_i32(INDEX_op_rem_i32, ret, arg1, arg2); } else if (TCG_TARGET_HAS_div_i32) { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_op3_i32(INDEX_op_div_i32, t0, arg1, arg2); tcg_gen_mul_i32(t0, t0, arg2); tcg_gen_sub_i32(ret, arg1, t0); tcg_temp_free_i32(t0); } else if (TCG_TARGET_HAS_div2_i32) { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_sari_i32(t0, arg1, 31); tcg_gen_op5_i32(INDEX_op_div2_i32, t0, ret, arg1, t0, arg2); tcg_temp_free_i32(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_divu_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_div_i32) { tcg_gen_op3_i32(INDEX_op_divu_i32, ret, arg1, arg2); } else if (TCG_TARGET_HAS_div2_i32) { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_movi_i32(t0, 0); tcg_gen_op5_i32(INDEX_op_divu2_i32, ret, t0, arg1, t0, arg2); tcg_temp_free_i32(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_remu_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_rem_i32) { tcg_gen_op3_i32(INDEX_op_remu_i32, ret, arg1, arg2); } else if (TCG_TARGET_HAS_div_i32) { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_op3_i32(INDEX_op_divu_i32, t0, arg1, arg2); tcg_gen_mul_i32(t0, t0, arg2); tcg_gen_sub_i32(ret, arg1, t0); tcg_temp_free_i32(t0); } else if (TCG_TARGET_HAS_div2_i32) { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_movi_i32(t0, 0); tcg_gen_op5_i32(INDEX_op_divu2_i32, t0, ret, arg1, t0, arg2); tcg_temp_free_i32(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_andc_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_andc_i32) { tcg_gen_op3_i32(INDEX_op_andc_i32, ret, arg1, arg2); } else { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_not_i32(t0, arg2); tcg_gen_and_i32(ret, arg1, t0); tcg_temp_free_i32(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_orc_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_orc_i32) { tcg_gen_op3_i32(INDEX_op_orc_i32, ret, arg1, arg2); } else { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_not_i32(t0, arg2); tcg_gen_or_i32(ret, arg1, t0); tcg_temp_free_i32(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_clz_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_clz_i32) { tcg_gen_op3_i32(INDEX_op_clz_i32, ret, arg1, arg2); } else if (TCG_TARGET_HAS_clz_i64) { - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); tcg_gen_extu_i32_i64(t1, arg1); tcg_gen_extu_i32_i64(t2, arg2); tcg_gen_addi_i64(t2, t2, 32); @@ -XXX,XX +XXX,XX @@ void tcg_gen_ctz_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_ctz_i32) { tcg_gen_op3_i32(INDEX_op_ctz_i32, ret, arg1, arg2); } else if (TCG_TARGET_HAS_ctz_i64) { - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); tcg_gen_extu_i32_i64(t1, arg1); tcg_gen_extu_i32_i64(t2, arg2); tcg_gen_ctz_i64(t1, t1, t2); @@ -XXX,XX +XXX,XX @@ void tcg_gen_ctz_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) || TCG_TARGET_HAS_ctpop_i64 || TCG_TARGET_HAS_clz_i32 || TCG_TARGET_HAS_clz_i64) { - TCGv_i32 z, t = tcg_temp_new_i32(); + TCGv_i32 z, t = tcg_temp_ebb_new_i32(); if (TCG_TARGET_HAS_ctpop_i32 || TCG_TARGET_HAS_ctpop_i64) { tcg_gen_subi_i32(t, arg1, 1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_ctzi_i32(TCGv_i32 ret, TCGv_i32 arg1, uint32_t arg2) { if (!TCG_TARGET_HAS_ctz_i32 && TCG_TARGET_HAS_ctpop_i32 && arg2 == 32) { /* This equivalence has the advantage of not requiring a fixup. */ - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_subi_i32(t, arg1, 1); tcg_gen_andc_i32(t, t, arg1); tcg_gen_ctpop_i32(ret, t); @@ -XXX,XX +XXX,XX @@ void tcg_gen_ctzi_i32(TCGv_i32 ret, TCGv_i32 arg1, uint32_t arg2) void tcg_gen_clrsb_i32(TCGv_i32 ret, TCGv_i32 arg) { if (TCG_TARGET_HAS_clz_i32) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_sari_i32(t, arg, 31); tcg_gen_xor_i32(t, t, arg); tcg_gen_clzi_i32(t, t, 32); @@ -XXX,XX +XXX,XX @@ void tcg_gen_ctpop_i32(TCGv_i32 ret, TCGv_i32 arg1) if (TCG_TARGET_HAS_ctpop_i32) { tcg_gen_op2_i32(INDEX_op_ctpop_i32, ret, arg1); } else if (TCG_TARGET_HAS_ctpop_i64) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_extu_i32_i64(t, arg1); tcg_gen_ctpop_i64(t, t); tcg_gen_extrl_i64_i32(ret, t); @@ -XXX,XX +XXX,XX @@ void tcg_gen_rotl_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) } else { TCGv_i32 t0, t1; - t0 = tcg_temp_new_i32(); - t1 = tcg_temp_new_i32(); + t0 = tcg_temp_ebb_new_i32(); + t1 = tcg_temp_ebb_new_i32(); tcg_gen_shl_i32(t0, arg1, arg2); tcg_gen_subfi_i32(t1, 32, arg2); tcg_gen_shr_i32(t1, arg1, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_rotli_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2) tcg_gen_rotl_i32(ret, arg1, tcg_constant_i32(arg2)); } else { TCGv_i32 t0, t1; - t0 = tcg_temp_new_i32(); - t1 = tcg_temp_new_i32(); + t0 = tcg_temp_ebb_new_i32(); + t1 = tcg_temp_ebb_new_i32(); tcg_gen_shli_i32(t0, arg1, arg2); tcg_gen_shri_i32(t1, arg1, 32 - arg2); tcg_gen_or_i32(ret, t0, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_rotr_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) } else { TCGv_i32 t0, t1; - t0 = tcg_temp_new_i32(); - t1 = tcg_temp_new_i32(); + t0 = tcg_temp_ebb_new_i32(); + t1 = tcg_temp_ebb_new_i32(); tcg_gen_shr_i32(t0, arg1, arg2); tcg_gen_subfi_i32(t1, 32, arg2); tcg_gen_shl_i32(t1, arg1, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_deposit_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2, return; } - t1 = tcg_temp_new_i32(); + t1 = tcg_temp_ebb_new_i32(); if (TCG_TARGET_HAS_extract2_i32) { if (ofs + len == 32) { @@ -XXX,XX +XXX,XX @@ void tcg_gen_extract2_i32(TCGv_i32 ret, TCGv_i32 al, TCGv_i32 ah, } else if (TCG_TARGET_HAS_extract2_i32) { tcg_gen_op4i_i32(INDEX_op_extract2_i32, ret, al, ah, ofs); } else { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_shri_i32(t0, al, ofs); tcg_gen_deposit_i32(ret, t0, ah, 32 - ofs, ofs); tcg_temp_free_i32(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_movcond_i32(TCGCond cond, TCGv_i32 ret, TCGv_i32 c1, } else if (TCG_TARGET_HAS_movcond_i32) { tcg_gen_op6i_i32(INDEX_op_movcond_i32, ret, c1, c2, v1, v2, cond); } else { - TCGv_i32 t0 = tcg_temp_new_i32(); - TCGv_i32 t1 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); tcg_gen_setcond_i32(cond, t0, c1, c2); tcg_gen_neg_i32(t0, t0); tcg_gen_and_i32(t1, v1, t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_add2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 al, if (TCG_TARGET_HAS_add2_i32) { tcg_gen_op6_i32(INDEX_op_add2_i32, rl, rh, al, ah, bl, bh); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); tcg_gen_concat_i32_i64(t0, al, ah); tcg_gen_concat_i32_i64(t1, bl, bh); tcg_gen_add_i64(t0, t0, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_sub2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 al, if (TCG_TARGET_HAS_sub2_i32) { tcg_gen_op6_i32(INDEX_op_sub2_i32, rl, rh, al, ah, bl, bh); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); tcg_gen_concat_i32_i64(t0, al, ah); tcg_gen_concat_i32_i64(t1, bl, bh); tcg_gen_sub_i64(t0, t0, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_mulu2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_mulu2_i32) { tcg_gen_op4_i32(INDEX_op_mulu2_i32, rl, rh, arg1, arg2); } else if (TCG_TARGET_HAS_muluh_i32) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_op3_i32(INDEX_op_mul_i32, t, arg1, arg2); tcg_gen_op3_i32(INDEX_op_muluh_i32, rh, arg1, arg2); tcg_gen_mov_i32(rl, t); tcg_temp_free_i32(t); } else if (TCG_TARGET_REG_BITS == 64) { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); tcg_gen_extu_i32_i64(t0, arg1); tcg_gen_extu_i32_i64(t1, arg2); tcg_gen_mul_i64(t0, t0, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_muls2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2) if (TCG_TARGET_HAS_muls2_i32) { tcg_gen_op4_i32(INDEX_op_muls2_i32, rl, rh, arg1, arg2); } else if (TCG_TARGET_HAS_mulsh_i32) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_op3_i32(INDEX_op_mul_i32, t, arg1, arg2); tcg_gen_op3_i32(INDEX_op_mulsh_i32, rh, arg1, arg2); tcg_gen_mov_i32(rl, t); tcg_temp_free_i32(t); } else if (TCG_TARGET_REG_BITS == 32) { - TCGv_i32 t0 = tcg_temp_new_i32(); - TCGv_i32 t1 = tcg_temp_new_i32(); - TCGv_i32 t2 = tcg_temp_new_i32(); - TCGv_i32 t3 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); + TCGv_i32 t2 = tcg_temp_ebb_new_i32(); + TCGv_i32 t3 = tcg_temp_ebb_new_i32(); tcg_gen_mulu2_i32(t0, t1, arg1, arg2); /* Adjust for negative inputs. */ tcg_gen_sari_i32(t2, arg1, 31); @@ -XXX,XX +XXX,XX @@ void tcg_gen_muls2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2) tcg_temp_free_i32(t2); tcg_temp_free_i32(t3); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); tcg_gen_ext_i32_i64(t0, arg1); tcg_gen_ext_i32_i64(t1, arg2); tcg_gen_mul_i64(t0, t0, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_muls2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2) void tcg_gen_mulsu2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2) { if (TCG_TARGET_REG_BITS == 32) { - TCGv_i32 t0 = tcg_temp_new_i32(); - TCGv_i32 t1 = tcg_temp_new_i32(); - TCGv_i32 t2 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); + TCGv_i32 t2 = tcg_temp_ebb_new_i32(); tcg_gen_mulu2_i32(t0, t1, arg1, arg2); /* Adjust for negative input for the signed arg1. */ tcg_gen_sari_i32(t2, arg1, 31); @@ -XXX,XX +XXX,XX @@ void tcg_gen_mulsu2_i32(TCGv_i32 rl, TCGv_i32 rh, TCGv_i32 arg1, TCGv_i32 arg2) tcg_temp_free_i32(t1); tcg_temp_free_i32(t2); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); tcg_gen_ext_i32_i64(t0, arg1); tcg_gen_extu_i32_i64(t1, arg2); tcg_gen_mul_i64(t0, t0, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_bswap16_i32(TCGv_i32 ret, TCGv_i32 arg, int flags) if (TCG_TARGET_HAS_bswap16_i32) { tcg_gen_op3i_i32(INDEX_op_bswap16_i32, ret, arg, flags); } else { - TCGv_i32 t0 = tcg_temp_new_i32(); - TCGv_i32 t1 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); tcg_gen_shri_i32(t0, arg, 8); if (!(flags & TCG_BSWAP_IZ)) { @@ -XXX,XX +XXX,XX @@ void tcg_gen_bswap32_i32(TCGv_i32 ret, TCGv_i32 arg) if (TCG_TARGET_HAS_bswap32_i32) { tcg_gen_op3i_i32(INDEX_op_bswap32_i32, ret, arg, 0); } else { - TCGv_i32 t0 = tcg_temp_new_i32(); - TCGv_i32 t1 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); TCGv_i32 t2 = tcg_constant_i32(0x00ff00ff); /* arg = abcd */ @@ -XXX,XX +XXX,XX @@ void tcg_gen_umax_i32(TCGv_i32 ret, TCGv_i32 a, TCGv_i32 b) void tcg_gen_abs_i32(TCGv_i32 ret, TCGv_i32 a) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_sari_i32(t, a, 31); tcg_gen_xor_i32(ret, a, t); @@ -XXX,XX +XXX,XX @@ void tcg_gen_mul_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) TCGv_i64 t0; TCGv_i32 t1; - t0 = tcg_temp_new_i64(); - t1 = tcg_temp_new_i32(); + t0 = tcg_temp_ebb_new_i64(); + t1 = tcg_temp_ebb_new_i32(); tcg_gen_mulu2_i32(TCGV_LOW(t0), TCGV_HIGH(t0), TCGV_LOW(arg1), TCGV_LOW(arg2)); @@ -XXX,XX +XXX,XX @@ static inline void tcg_gen_shifti_i64(TCGv_i64 ret, TCGv_i64 arg1, tcg_gen_extract2_i32(TCGV_HIGH(ret), TCGV_LOW(arg1), TCGV_HIGH(arg1), 32 - c); } else { - TCGv_i32 t0 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); tcg_gen_shri_i32(t0, TCGV_LOW(arg1), 32 - c); tcg_gen_deposit_i32(TCGV_HIGH(ret), t0, TCGV_HIGH(arg1), c, 32 - c); @@ -XXX,XX +XXX,XX @@ void tcg_gen_div_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) if (TCG_TARGET_HAS_div_i64) { tcg_gen_op3_i64(INDEX_op_div_i64, ret, arg1, arg2); } else if (TCG_TARGET_HAS_div2_i64) { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_sari_i64(t0, arg1, 63); tcg_gen_op5_i64(INDEX_op_div2_i64, ret, t0, arg1, t0, arg2); tcg_temp_free_i64(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_rem_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) if (TCG_TARGET_HAS_rem_i64) { tcg_gen_op3_i64(INDEX_op_rem_i64, ret, arg1, arg2); } else if (TCG_TARGET_HAS_div_i64) { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_op3_i64(INDEX_op_div_i64, t0, arg1, arg2); tcg_gen_mul_i64(t0, t0, arg2); tcg_gen_sub_i64(ret, arg1, t0); tcg_temp_free_i64(t0); } else if (TCG_TARGET_HAS_div2_i64) { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_sari_i64(t0, arg1, 63); tcg_gen_op5_i64(INDEX_op_div2_i64, t0, ret, arg1, t0, arg2); tcg_temp_free_i64(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_divu_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) if (TCG_TARGET_HAS_div_i64) { tcg_gen_op3_i64(INDEX_op_divu_i64, ret, arg1, arg2); } else if (TCG_TARGET_HAS_div2_i64) { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_movi_i64(t0, 0); tcg_gen_op5_i64(INDEX_op_divu2_i64, ret, t0, arg1, t0, arg2); tcg_temp_free_i64(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_remu_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) if (TCG_TARGET_HAS_rem_i64) { tcg_gen_op3_i64(INDEX_op_remu_i64, ret, arg1, arg2); } else if (TCG_TARGET_HAS_div_i64) { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_op3_i64(INDEX_op_divu_i64, t0, arg1, arg2); tcg_gen_mul_i64(t0, t0, arg2); tcg_gen_sub_i64(ret, arg1, t0); tcg_temp_free_i64(t0); } else if (TCG_TARGET_HAS_div2_i64) { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_movi_i64(t0, 0); tcg_gen_op5_i64(INDEX_op_divu2_i64, t0, ret, arg1, t0, arg2); tcg_temp_free_i64(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_bswap16_i64(TCGv_i64 ret, TCGv_i64 arg, int flags) } else if (TCG_TARGET_HAS_bswap16_i64) { tcg_gen_op3i_i64(INDEX_op_bswap16_i64, ret, arg, flags); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); tcg_gen_shri_i64(t0, arg, 8); if (!(flags & TCG_BSWAP_IZ)) { @@ -XXX,XX +XXX,XX @@ void tcg_gen_bswap32_i64(TCGv_i64 ret, TCGv_i64 arg, int flags) } else if (TCG_TARGET_HAS_bswap32_i64) { tcg_gen_op3i_i64(INDEX_op_bswap32_i64, ret, arg, flags); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); TCGv_i64 t2 = tcg_constant_i64(0x00ff00ff); /* arg = xxxxabcd */ @@ -XXX,XX +XXX,XX @@ void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg) { if (TCG_TARGET_REG_BITS == 32) { TCGv_i32 t0, t1; - t0 = tcg_temp_new_i32(); - t1 = tcg_temp_new_i32(); + t0 = tcg_temp_ebb_new_i32(); + t1 = tcg_temp_ebb_new_i32(); tcg_gen_bswap32_i32(t0, TCGV_LOW(arg)); tcg_gen_bswap32_i32(t1, TCGV_HIGH(arg)); @@ -XXX,XX +XXX,XX @@ void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg) } else if (TCG_TARGET_HAS_bswap64_i64) { tcg_gen_op3i_i64(INDEX_op_bswap64_i64, ret, arg, 0); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); /* arg = abcdefgh */ tcg_gen_movi_i64(t2, 0x00ff00ff00ff00ffull); @@ -XXX,XX +XXX,XX @@ void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg) void tcg_gen_hswap_i64(TCGv_i64 ret, TCGv_i64 arg) { uint64_t m = 0x0000ffff0000ffffull; - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); /* See include/qemu/bitops.h, hswap64. */ tcg_gen_rotli_i64(t1, arg, 32); @@ -XXX,XX +XXX,XX @@ void tcg_gen_andc_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) } else if (TCG_TARGET_HAS_andc_i64) { tcg_gen_op3_i64(INDEX_op_andc_i64, ret, arg1, arg2); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_not_i64(t0, arg2); tcg_gen_and_i64(ret, arg1, t0); tcg_temp_free_i64(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_orc_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) } else if (TCG_TARGET_HAS_orc_i64) { tcg_gen_op3_i64(INDEX_op_orc_i64, ret, arg1, arg2); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_not_i64(t0, arg2); tcg_gen_or_i64(ret, arg1, t0); tcg_temp_free_i64(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_clzi_i64(TCGv_i64 ret, TCGv_i64 arg1, uint64_t arg2) if (TCG_TARGET_REG_BITS == 32 && TCG_TARGET_HAS_clz_i32 && arg2 <= 0xffffffffu) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); tcg_gen_clzi_i32(t, TCGV_LOW(arg1), arg2 - 32); tcg_gen_addi_i32(t, t, 32); tcg_gen_clz_i32(TCGV_LOW(ret), TCGV_HIGH(arg1), t); @@ -XXX,XX +XXX,XX @@ void tcg_gen_ctz_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) if (TCG_TARGET_HAS_ctz_i64) { tcg_gen_op3_i64(INDEX_op_ctz_i64, ret, arg1, arg2); } else if (TCG_TARGET_HAS_ctpop_i64 || TCG_TARGET_HAS_clz_i64) { - TCGv_i64 z, t = tcg_temp_new_i64(); + TCGv_i64 z, t = tcg_temp_ebb_new_i64(); if (TCG_TARGET_HAS_ctpop_i64) { tcg_gen_subi_i64(t, arg1, 1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_ctzi_i64(TCGv_i64 ret, TCGv_i64 arg1, uint64_t arg2) if (TCG_TARGET_REG_BITS == 32 && TCG_TARGET_HAS_ctz_i32 && arg2 <= 0xffffffffu) { - TCGv_i32 t32 = tcg_temp_new_i32(); + TCGv_i32 t32 = tcg_temp_ebb_new_i32(); tcg_gen_ctzi_i32(t32, TCGV_HIGH(arg1), arg2 - 32); tcg_gen_addi_i32(t32, t32, 32); tcg_gen_ctz_i32(TCGV_LOW(ret), TCGV_LOW(arg1), t32); @@ -XXX,XX +XXX,XX @@ void tcg_gen_ctzi_i64(TCGv_i64 ret, TCGv_i64 arg1, uint64_t arg2) && TCG_TARGET_HAS_ctpop_i64 && arg2 == 64) { /* This equivalence has the advantage of not requiring a fixup. */ - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_subi_i64(t, arg1, 1); tcg_gen_andc_i64(t, t, arg1); tcg_gen_ctpop_i64(ret, t); @@ -XXX,XX +XXX,XX @@ void tcg_gen_ctzi_i64(TCGv_i64 ret, TCGv_i64 arg1, uint64_t arg2) void tcg_gen_clrsb_i64(TCGv_i64 ret, TCGv_i64 arg) { if (TCG_TARGET_HAS_clz_i64 || TCG_TARGET_HAS_clz_i32) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_sari_i64(t, arg, 63); tcg_gen_xor_i64(t, t, arg); tcg_gen_clzi_i64(t, t, 64); @@ -XXX,XX +XXX,XX @@ void tcg_gen_rotl_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) tcg_gen_op3_i64(INDEX_op_rotl_i64, ret, arg1, arg2); } else { TCGv_i64 t0, t1; - t0 = tcg_temp_new_i64(); - t1 = tcg_temp_new_i64(); + t0 = tcg_temp_ebb_new_i64(); + t1 = tcg_temp_ebb_new_i64(); tcg_gen_shl_i64(t0, arg1, arg2); tcg_gen_subfi_i64(t1, 64, arg2); tcg_gen_shr_i64(t1, arg1, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_rotli_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2) tcg_gen_rotl_i64(ret, arg1, tcg_constant_i64(arg2)); } else { TCGv_i64 t0, t1; - t0 = tcg_temp_new_i64(); - t1 = tcg_temp_new_i64(); + t0 = tcg_temp_ebb_new_i64(); + t1 = tcg_temp_ebb_new_i64(); tcg_gen_shli_i64(t0, arg1, arg2); tcg_gen_shri_i64(t1, arg1, 64 - arg2); tcg_gen_or_i64(ret, t0, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_rotr_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2) tcg_gen_op3_i64(INDEX_op_rotr_i64, ret, arg1, arg2); } else { TCGv_i64 t0, t1; - t0 = tcg_temp_new_i64(); - t1 = tcg_temp_new_i64(); + t0 = tcg_temp_ebb_new_i64(); + t1 = tcg_temp_ebb_new_i64(); tcg_gen_shr_i64(t0, arg1, arg2); tcg_gen_subfi_i64(t1, 64, arg2); tcg_gen_shl_i64(t1, arg1, t1); @@ -XXX,XX +XXX,XX @@ void tcg_gen_deposit_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2, } } - t1 = tcg_temp_new_i64(); + t1 = tcg_temp_ebb_new_i64(); if (TCG_TARGET_HAS_extract2_i64) { if (ofs + len == 64) { @@ -XXX,XX +XXX,XX @@ void tcg_gen_sextract_i64(TCGv_i64 ret, TCGv_i64 arg, tcg_gen_sextract_i32(TCGV_HIGH(ret), TCGV_HIGH(arg), 0, len - 32); return; } else if (len > 32) { - TCGv_i32 t = tcg_temp_new_i32(); + TCGv_i32 t = tcg_temp_ebb_new_i32(); /* Extract the bits for the high word normally. */ tcg_gen_sextract_i32(t, TCGV_HIGH(arg), ofs + 32, len - 32); /* Shift the field down for the low part. */ @@ -XXX,XX +XXX,XX @@ void tcg_gen_extract2_i64(TCGv_i64 ret, TCGv_i64 al, TCGv_i64 ah, } else if (TCG_TARGET_HAS_extract2_i64) { tcg_gen_op4i_i64(INDEX_op_extract2_i64, ret, al, ah, ofs); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_shri_i64(t0, al, ofs); tcg_gen_deposit_i64(ret, t0, ah, 64 - ofs, ofs); tcg_temp_free_i64(t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_movcond_i64(TCGCond cond, TCGv_i64 ret, TCGv_i64 c1, } else if (cond == TCG_COND_NEVER) { tcg_gen_mov_i64(ret, v2); } else if (TCG_TARGET_REG_BITS == 32) { - TCGv_i32 t0 = tcg_temp_new_i32(); - TCGv_i32 t1 = tcg_temp_new_i32(); + TCGv_i32 t0 = tcg_temp_ebb_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); tcg_gen_op6i_i32(INDEX_op_setcond2_i32, t0, TCGV_LOW(c1), TCGV_HIGH(c1), TCGV_LOW(c2), TCGV_HIGH(c2), cond); @@ -XXX,XX +XXX,XX @@ void tcg_gen_movcond_i64(TCGCond cond, TCGv_i64 ret, TCGv_i64 c1, } else if (TCG_TARGET_HAS_movcond_i64) { tcg_gen_op6i_i64(INDEX_op_movcond_i64, ret, c1, c2, v1, v2, cond); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); tcg_gen_setcond_i64(cond, t0, c1, c2); tcg_gen_neg_i64(t0, t0); tcg_gen_and_i64(t1, v1, t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_add2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 al, if (TCG_TARGET_HAS_add2_i64) { tcg_gen_op6_i64(INDEX_op_add2_i64, rl, rh, al, ah, bl, bh); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); tcg_gen_add_i64(t0, al, bl); tcg_gen_setcond_i64(TCG_COND_LTU, t1, t0, al); tcg_gen_add_i64(rh, ah, bh); @@ -XXX,XX +XXX,XX @@ void tcg_gen_sub2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 al, if (TCG_TARGET_HAS_sub2_i64) { tcg_gen_op6_i64(INDEX_op_sub2_i64, rl, rh, al, ah, bl, bh); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); tcg_gen_sub_i64(t0, al, bl); tcg_gen_setcond_i64(TCG_COND_LTU, t1, al, bl); tcg_gen_sub_i64(rh, ah, bh); @@ -XXX,XX +XXX,XX @@ void tcg_gen_mulu2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2) if (TCG_TARGET_HAS_mulu2_i64) { tcg_gen_op4_i64(INDEX_op_mulu2_i64, rl, rh, arg1, arg2); } else if (TCG_TARGET_HAS_muluh_i64) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_op3_i64(INDEX_op_mul_i64, t, arg1, arg2); tcg_gen_op3_i64(INDEX_op_muluh_i64, rh, arg1, arg2); tcg_gen_mov_i64(rl, t); tcg_temp_free_i64(t); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_mul_i64(t0, arg1, arg2); gen_helper_muluh_i64(rh, arg1, arg2); tcg_gen_mov_i64(rl, t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_muls2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2) if (TCG_TARGET_HAS_muls2_i64) { tcg_gen_op4_i64(INDEX_op_muls2_i64, rl, rh, arg1, arg2); } else if (TCG_TARGET_HAS_mulsh_i64) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_op3_i64(INDEX_op_mul_i64, t, arg1, arg2); tcg_gen_op3_i64(INDEX_op_mulsh_i64, rh, arg1, arg2); tcg_gen_mov_i64(rl, t); tcg_temp_free_i64(t); } else if (TCG_TARGET_HAS_mulu2_i64 || TCG_TARGET_HAS_muluh_i64) { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); - TCGv_i64 t3 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); + TCGv_i64 t3 = tcg_temp_ebb_new_i64(); tcg_gen_mulu2_i64(t0, t1, arg1, arg2); /* Adjust for negative inputs. */ tcg_gen_sari_i64(t2, arg1, 63); @@ -XXX,XX +XXX,XX @@ void tcg_gen_muls2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2) tcg_temp_free_i64(t2); tcg_temp_free_i64(t3); } else { - TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); tcg_gen_mul_i64(t0, arg1, arg2); gen_helper_mulsh_i64(rh, arg1, arg2); tcg_gen_mov_i64(rl, t0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_muls2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2) void tcg_gen_mulsu2_i64(TCGv_i64 rl, TCGv_i64 rh, TCGv_i64 arg1, TCGv_i64 arg2) { - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); tcg_gen_mulu2_i64(t0, t1, arg1, arg2); /* Adjust for negative input for the signed arg1. */ tcg_gen_sari_i64(t2, arg1, 63); @@ -XXX,XX +XXX,XX @@ void tcg_gen_umax_i64(TCGv_i64 ret, TCGv_i64 a, TCGv_i64 b) void tcg_gen_abs_i64(TCGv_i64 ret, TCGv_i64 a) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_sari_i64(t, a, 63); tcg_gen_xor_i64(ret, a, t); @@ -XXX,XX +XXX,XX @@ void tcg_gen_extrh_i64_i32(TCGv_i32 ret, TCGv_i64 arg) tcg_gen_op2(INDEX_op_extrh_i64_i32, tcgv_i32_arg(ret), tcgv_i64_arg(arg)); } else { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_shri_i64(t, arg, 32); tcg_gen_mov_i32(ret, (TCGv_i32)t); tcg_temp_free_i64(t); @@ -XXX,XX +XXX,XX @@ void tcg_gen_concat_i32_i64(TCGv_i64 dest, TCGv_i32 low, TCGv_i32 high) return; } - tmp = tcg_temp_new_i64(); + tmp = tcg_temp_ebb_new_i64(); /* These extensions are only needed for type correctness. We may be able to do better given target specific information. */ tcg_gen_extu_i32_i64(tmp, high); @@ -XXX,XX +XXX,XX @@ void tcg_gen_lookup_and_goto_ptr(void) } plugin_gen_disable_mem_helpers(); - ptr = tcg_temp_new_ptr(); + ptr = tcg_temp_ebb_new_ptr(); gen_helper_lookup_tb_ptr(ptr, cpu_env); tcg_gen_op1i(INDEX_op_goto_ptr, tcgv_ptr_arg(ptr)); tcg_temp_free_ptr(ptr); @@ -XXX,XX +XXX,XX @@ void tcg_gen_qemu_st_i32(TCGv_i32 val, TCGv addr, TCGArg idx, MemOp memop) oi = make_memop_idx(memop, idx); if (!TCG_TARGET_HAS_MEMORY_BSWAP && (memop & MO_BSWAP)) { - swap = tcg_temp_new_i32(); + swap = tcg_temp_ebb_new_i32(); switch (memop & MO_SIZE) { case MO_16: tcg_gen_bswap16_i32(swap, val, 0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_qemu_st_i64(TCGv_i64 val, TCGv addr, TCGArg idx, MemOp memop) oi = make_memop_idx(memop, idx); if (!TCG_TARGET_HAS_MEMORY_BSWAP && (memop & MO_BSWAP)) { - swap = tcg_temp_new_i64(); + swap = tcg_temp_ebb_new_i64(); switch (memop & MO_SIZE) { case MO_16: tcg_gen_bswap16_i64(swap, val, 0); @@ -XXX,XX +XXX,XX @@ void tcg_gen_qemu_st_i128(TCGv_i128 val, TCGv addr, TCGArg idx, MemOp memop) addr_p8 = tcg_temp_new(); if ((mop[0] ^ memop) & MO_BSWAP) { - TCGv_i64 t = tcg_temp_new_i64(); + TCGv_i64 t = tcg_temp_ebb_new_i64(); tcg_gen_bswap64_i64(t, x); gen_ldst_i64(INDEX_op_qemu_st_i64, t, addr, mop[0], idx); @@ -XXX,XX +XXX,XX @@ static void * const table_cmpxchg[(MO_SIZE | MO_BSWAP) + 1] = { void tcg_gen_nonatomic_cmpxchg_i32(TCGv_i32 retv, TCGv addr, TCGv_i32 cmpv, TCGv_i32 newv, TCGArg idx, MemOp memop) { - TCGv_i32 t1 = tcg_temp_new_i32(); - TCGv_i32 t2 = tcg_temp_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); + TCGv_i32 t2 = tcg_temp_ebb_new_i32(); tcg_gen_ext_i32(t2, cmpv, memop & MO_SIZE); @@ -XXX,XX +XXX,XX @@ void tcg_gen_nonatomic_cmpxchg_i64(TCGv_i64 retv, TCGv addr, TCGv_i64 cmpv, return; } - t1 = tcg_temp_new_i64(); - t2 = tcg_temp_new_i64(); + t1 = tcg_temp_ebb_new_i64(); + t2 = tcg_temp_ebb_new_i64(); tcg_gen_ext_i64(t2, cmpv, memop & MO_SIZE); @@ -XXX,XX +XXX,XX @@ void tcg_gen_atomic_cmpxchg_i64(TCGv_i64 retv, TCGv addr, TCGv_i64 cmpv, tcg_gen_movi_i32(TCGV_HIGH(retv), 0); } } else { - TCGv_i32 c32 = tcg_temp_new_i32(); - TCGv_i32 n32 = tcg_temp_new_i32(); - TCGv_i32 r32 = tcg_temp_new_i32(); + TCGv_i32 c32 = tcg_temp_ebb_new_i32(); + TCGv_i32 n32 = tcg_temp_ebb_new_i32(); + TCGv_i32 r32 = tcg_temp_ebb_new_i32(); tcg_gen_extrl_i64_i32(c32, cmpv); tcg_gen_extrl_i64_i32(n32, newv); @@ -XXX,XX +XXX,XX @@ void tcg_gen_nonatomic_cmpxchg_i128(TCGv_i128 retv, TCGv addr, TCGv_i128 cmpv, gen(retv, cpu_env, addr, cmpv, newv, tcg_constant_i32(oi)); } else { - TCGv_i128 oldv = tcg_temp_new_i128(); - TCGv_i128 tmpv = tcg_temp_new_i128(); - TCGv_i64 t0 = tcg_temp_new_i64(); - TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i128 oldv = tcg_temp_ebb_new_i128(); + TCGv_i128 tmpv = tcg_temp_ebb_new_i128(); + TCGv_i64 t0 = tcg_temp_ebb_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); TCGv_i64 z = tcg_constant_i64(0); tcg_gen_qemu_ld_i128(oldv, addr, idx, memop); @@ -XXX,XX +XXX,XX @@ static void do_nonatomic_op_i32(TCGv_i32 ret, TCGv addr, TCGv_i32 val, TCGArg idx, MemOp memop, bool new_val, void (*gen)(TCGv_i32, TCGv_i32, TCGv_i32)) { - TCGv_i32 t1 = tcg_temp_new_i32(); - TCGv_i32 t2 = tcg_temp_new_i32(); + TCGv_i32 t1 = tcg_temp_ebb_new_i32(); + TCGv_i32 t2 = tcg_temp_ebb_new_i32(); memop = tcg_canonicalize_memop(memop, 0, 0); @@ -XXX,XX +XXX,XX @@ static void do_nonatomic_op_i64(TCGv_i64 ret, TCGv addr, TCGv_i64 val, TCGArg idx, MemOp memop, bool new_val, void (*gen)(TCGv_i64, TCGv_i64, TCGv_i64)) { - TCGv_i64 t1 = tcg_temp_new_i64(); - TCGv_i64 t2 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_ebb_new_i64(); + TCGv_i64 t2 = tcg_temp_ebb_new_i64(); memop = tcg_canonicalize_memop(memop, 1, 0); @@ -XXX,XX +XXX,XX @@ static void do_atomic_op_i64(TCGv_i64 ret, TCGv addr, TCGv_i64 val, tcg_gen_movi_i64(ret, 0); #endif /* CONFIG_ATOMIC64 */ } else { - TCGv_i32 v32 = tcg_temp_new_i32(); - TCGv_i32 r32 = tcg_temp_new_i32(); + TCGv_i32 v32 = tcg_temp_ebb_new_i32(); + TCGv_i32 r32 = tcg_temp_ebb_new_i32(); tcg_gen_extrl_i64_i32(v32, val); do_atomic_op_i32(r32, addr, v32, idx, memop & ~MO_SIGN, table); diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ void tcg_gen_callN(void *func, TCGTemp *ret, int nargs, TCGTemp **args) case TCG_CALL_ARG_EXTEND_U: case TCG_CALL_ARG_EXTEND_S: { - TCGv_i64 temp = tcg_temp_new_i64(); + TCGv_i64 temp = tcg_temp_ebb_new_i64(); TCGv_i32 orig = temp_tcgv_i32(ts); if (loc->kind == TCG_CALL_ARG_EXTEND_S) { -- 2.34.1 Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- tcg/tcg-op-gvec.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg-op-gvec.c +++ b/tcg/tcg-op-gvec.c @@ -XXX,XX +XXX,XX @@ static void do_dup(unsigned vece, uint32_t dofs, uint32_t oprsz, * stores through to memset. */ if (oprsz == maxsz && vece == MO_8) { - TCGv_ptr t_size = tcg_const_ptr(oprsz); + TCGv_ptr t_size = tcg_constant_ptr(oprsz); TCGv_i32 t_val; if (in_32) { @@ -XXX,XX +XXX,XX @@ static void do_dup(unsigned vece, uint32_t dofs, uint32_t oprsz, if (in_64) { tcg_temp_free_i32(t_val); } - tcg_temp_free_ptr(t_size); tcg_temp_free_ptr(t_ptr); return; } -- 2.34.1 All of these uses have quite local scope. Avoid tcg_const_*, because we haven't added a corresponding interface for TEMP_EBB. Use explicit tcg_gen_movi_* instead. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/plugin-gen.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/plugin-gen.c +++ b/accel/tcg/plugin-gen.c @@ -XXX,XX +XXX,XX @@ void HELPER(plugin_vcpu_mem_cb)(unsigned int vcpu_index, static void do_gen_mem_cb(TCGv vaddr, uint32_t info) { - TCGv_i32 cpu_index = tcg_temp_new_i32(); - TCGv_i32 meminfo = tcg_const_i32(info); - TCGv_i64 vaddr64 = tcg_temp_new_i64(); - TCGv_ptr udata = tcg_const_ptr(NULL); + TCGv_i32 cpu_index = tcg_temp_ebb_new_i32(); + TCGv_i32 meminfo = tcg_temp_ebb_new_i32(); + TCGv_i64 vaddr64 = tcg_temp_ebb_new_i64(); + TCGv_ptr udata = tcg_temp_ebb_new_ptr(); + tcg_gen_movi_i32(meminfo, info); + tcg_gen_movi_ptr(udata, 0); tcg_gen_ld_i32(cpu_index, cpu_env, -offsetof(ArchCPU, env) + offsetof(CPUState, cpu_index)); tcg_gen_extu_tl_i64(vaddr64, vaddr); @@ -XXX,XX +XXX,XX @@ static void do_gen_mem_cb(TCGv vaddr, uint32_t info) static void gen_empty_udata_cb(void) { - TCGv_i32 cpu_index = tcg_temp_new_i32(); - TCGv_ptr udata = tcg_const_ptr(NULL); /* will be overwritten later */ + TCGv_i32 cpu_index = tcg_temp_ebb_new_i32(); + TCGv_ptr udata = tcg_temp_ebb_new_ptr(); + tcg_gen_movi_ptr(udata, 0); tcg_gen_ld_i32(cpu_index, cpu_env, -offsetof(ArchCPU, env) + offsetof(CPUState, cpu_index)); gen_helper_plugin_vcpu_udata_cb(cpu_index, udata); @@ -XXX,XX +XXX,XX @@ static void gen_empty_udata_cb(void) */ static void gen_empty_inline_cb(void) { - TCGv_i64 val = tcg_temp_new_i64(); - TCGv_ptr ptr = tcg_const_ptr(NULL); /* overwritten later */ + TCGv_i64 val = tcg_temp_ebb_new_i64(); + TCGv_ptr ptr = tcg_temp_ebb_new_ptr(); + tcg_gen_movi_ptr(ptr, 0); tcg_gen_ld_i64(val, ptr, 0); /* pass an immediate != 0 so that it doesn't get optimized away */ tcg_gen_addi_i64(val, val, 0xdeadface); @@ -XXX,XX +XXX,XX @@ static void gen_empty_mem_cb(TCGv addr, uint32_t info) */ static void gen_empty_mem_helper(void) { - TCGv_ptr ptr; + TCGv_ptr ptr = tcg_temp_ebb_new_ptr(); - ptr = tcg_const_ptr(NULL); + tcg_gen_movi_ptr(ptr, 0); tcg_gen_st_ptr(ptr, cpu_env, offsetof(CPUState, plugin_mem_cbs) - offsetof(ArchCPU, env)); tcg_temp_free_ptr(ptr); -- 2.34.1 Here we are creating a temp whose value needs to be replaced, but always storing NULL into CPUState.plugin_mem_cbs. Use tcg_constant_ptr(0) explicitly. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- accel/tcg/plugin-gen.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c index XXXXXXX..XXXXXXX 100644 --- a/accel/tcg/plugin-gen.c +++ b/accel/tcg/plugin-gen.c @@ -XXX,XX +XXX,XX @@ static void inject_mem_disable_helper(struct qemu_plugin_insn *plugin_insn, /* called before finishing a TB with exit_tb, goto_tb or goto_ptr */ void plugin_gen_disable_mem_helpers(void) { - TCGv_ptr ptr; - /* * We could emit the clearing unconditionally and be done. However, this can * be wasteful if for instance plugins don't track memory accesses, or if @@ -XXX,XX +XXX,XX @@ void plugin_gen_disable_mem_helpers(void) if (!tcg_ctx->plugin_tb->mem_helper) { return; } - ptr = tcg_const_ptr(NULL); - tcg_gen_st_ptr(ptr, cpu_env, offsetof(CPUState, plugin_mem_cbs) - - offsetof(ArchCPU, env)); - tcg_temp_free_ptr(ptr); + tcg_gen_st_ptr(tcg_constant_ptr(NULL), cpu_env, + offsetof(CPUState, plugin_mem_cbs) - offsetof(ArchCPU, env)); } static void plugin_gen_tb_udata(const struct qemu_plugin_tb *ptb, -- 2.34.1 Reusing TEMP_TB interferes with detecting whether the temp can be adjusted to TEMP_EBB. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/tcg/tcg.h | 2 +- tcg/tcg.c | 101 ++++++++++++++++++++++++---------------------- 2 files changed, 53 insertions(+), 50 deletions(-) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -XXX,XX +XXX,XX @@ struct TCGContext { #endif GHashTable *const_table[TCG_TYPE_COUNT]; - TCGTempSet free_temps[TCG_TYPE_COUNT * 2]; + TCGTempSet free_temps[TCG_TYPE_COUNT]; TCGTemp temps[TCG_MAX_TEMPS]; /* globals first, temps after */ QTAILQ_HEAD(, TCGOp) ops, free_ops; diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ TCGTemp *tcg_global_mem_new_internal(TCGType type, TCGv_ptr base, TCGTemp *tcg_temp_new_internal(TCGType type, TCGTempKind kind) { TCGContext *s = tcg_ctx; - bool temp_local = kind == TEMP_TB; TCGTemp *ts; - int idx, k; + int n; - k = type + (temp_local ? TCG_TYPE_COUNT : 0); - idx = find_first_bit(s->free_temps[k].l, TCG_MAX_TEMPS); - if (idx < TCG_MAX_TEMPS) { - /* There is already an available temp with the right type. */ - clear_bit(idx, s->free_temps[k].l); + if (kind == TEMP_EBB) { + int idx = find_first_bit(s->free_temps[type].l, TCG_MAX_TEMPS); - ts = &s->temps[idx]; - ts->temp_allocated = 1; - tcg_debug_assert(ts->base_type == type); - tcg_debug_assert(ts->kind == kind); - } else { - int i, n; + if (idx < TCG_MAX_TEMPS) { + /* There is already an available temp with the right type. */ + clear_bit(idx, s->free_temps[type].l); - switch (type) { - case TCG_TYPE_I32: - case TCG_TYPE_V64: - case TCG_TYPE_V128: - case TCG_TYPE_V256: - n = 1; - break; - case TCG_TYPE_I64: - n = 64 / TCG_TARGET_REG_BITS; - break; - case TCG_TYPE_I128: - n = 128 / TCG_TARGET_REG_BITS; - break; - default: - g_assert_not_reached(); + ts = &s->temps[idx]; + ts->temp_allocated = 1; + tcg_debug_assert(ts->base_type == type); + tcg_debug_assert(ts->kind == kind); + goto done; } + } else { + tcg_debug_assert(kind == TEMP_TB); + } - ts = tcg_temp_alloc(s); - ts->base_type = type; - ts->temp_allocated = 1; - ts->kind = kind; + switch (type) { + case TCG_TYPE_I32: + case TCG_TYPE_V64: + case TCG_TYPE_V128: + case TCG_TYPE_V256: + n = 1; + break; + case TCG_TYPE_I64: + n = 64 / TCG_TARGET_REG_BITS; + break; + case TCG_TYPE_I128: + n = 128 / TCG_TARGET_REG_BITS; + break; + default: + g_assert_not_reached(); + } - if (n == 1) { - ts->type = type; - } else { - ts->type = TCG_TYPE_REG; + ts = tcg_temp_alloc(s); + ts->base_type = type; + ts->temp_allocated = 1; + ts->kind = kind; - for (i = 1; i < n; ++i) { - TCGTemp *ts2 = tcg_temp_alloc(s); + if (n == 1) { + ts->type = type; + } else { + ts->type = TCG_TYPE_REG; - tcg_debug_assert(ts2 == ts + i); - ts2->base_type = type; - ts2->type = TCG_TYPE_REG; - ts2->temp_allocated = 1; - ts2->temp_subindex = i; - ts2->kind = kind; - } + for (int i = 1; i < n; ++i) { + TCGTemp *ts2 = tcg_temp_alloc(s); + + tcg_debug_assert(ts2 == ts + i); + ts2->base_type = type; + ts2->type = TCG_TYPE_REG; + ts2->temp_allocated = 1; + ts2->temp_subindex = i; + ts2->kind = kind; } } + done: #if defined(CONFIG_DEBUG_TCG) s->temps_in_use++; #endif @@ -XXX,XX +XXX,XX @@ TCGv_vec tcg_temp_new_vec_matching(TCGv_vec match) void tcg_temp_free_internal(TCGTemp *ts) { TCGContext *s = tcg_ctx; - int k, idx; switch (ts->kind) { case TEMP_CONST: @@ -XXX,XX +XXX,XX @@ void tcg_temp_free_internal(TCGTemp *ts) s->temps_in_use--; #endif - idx = temp_idx(ts); - k = ts->base_type + (ts->kind == TEMP_EBB ? 0 : TCG_TYPE_COUNT); - set_bit(idx, s->free_temps[k].l); + if (ts->kind == TEMP_EBB) { + int idx = temp_idx(ts); + set_bit(idx, s->free_temps[ts->base_type].l); + } } TCGTemp *tcg_constant_internal(TCGType type, int64_t val) -- 2.34.1 Guest front-ends now get temps that span the lifetime of the translation block by default, which avoids accidentally using the temp across branches and invalidating the data. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/tcg/tcg.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -XXX,XX +XXX,XX @@ static inline TCGv_i32 tcg_temp_ebb_new_i32(void) static inline TCGv_i32 tcg_temp_new_i32(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, TEMP_EBB); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, TEMP_TB); return temp_tcgv_i32(t); } @@ -XXX,XX +XXX,XX @@ static inline TCGv_i64 tcg_temp_ebb_new_i64(void) static inline TCGv_i64 tcg_temp_new_i64(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, TEMP_EBB); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, TEMP_TB); return temp_tcgv_i64(t); } @@ -XXX,XX +XXX,XX @@ static inline TCGv_i128 tcg_temp_ebb_new_i128(void) static inline TCGv_i128 tcg_temp_new_i128(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, TEMP_EBB); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, TEMP_TB); return temp_tcgv_i128(t); } @@ -XXX,XX +XXX,XX @@ static inline TCGv_ptr tcg_temp_ebb_new_ptr(void) static inline TCGv_ptr tcg_temp_new_ptr(void) { - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, TEMP_EBB); + TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, TEMP_TB); return temp_tcgv_ptr(t); } -- 2.34.1 Since we now get TEMP_TB temporaries by default, we no longer need to make copies across these loops. These were the only uses of new_tmp_a64_local(), so remove that as well. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/arm/tcg/translate-a64.h | 1 - target/arm/tcg/translate-a64.c | 6 ------ target/arm/tcg/translate-sve.c | 32 -------------------------------- 3 files changed, 39 deletions(-) diff --git a/target/arm/tcg/translate-a64.h b/target/arm/tcg/translate-a64.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate-a64.h +++ b/target/arm/tcg/translate-a64.h @@ -XXX,XX +XXX,XX @@ #define TARGET_ARM_TRANSLATE_A64_H TCGv_i64 new_tmp_a64(DisasContext *s); -TCGv_i64 new_tmp_a64_local(DisasContext *s); TCGv_i64 new_tmp_a64_zero(DisasContext *s); TCGv_i64 cpu_reg(DisasContext *s, int reg); TCGv_i64 cpu_reg_sp(DisasContext *s, int reg); diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -XXX,XX +XXX,XX @@ TCGv_i64 new_tmp_a64(DisasContext *s) return s->tmp_a64[s->tmp_a64_count++] = tcg_temp_new_i64(); } -TCGv_i64 new_tmp_a64_local(DisasContext *s) -{ - assert(s->tmp_a64_count < TMP_A64_MAX); - return s->tmp_a64[s->tmp_a64_count++] = tcg_temp_local_new_i64(); -} - TCGv_i64 new_tmp_a64_zero(DisasContext *s) { TCGv_i64 t = new_tmp_a64(s); diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate-sve.c +++ b/target/arm/tcg/translate-sve.c @@ -XXX,XX +XXX,XX @@ void gen_sve_ldr(DisasContext *s, TCGv_ptr base, int vofs, TCGLabel *loop = gen_new_label(); TCGv_ptr tp, i = tcg_const_local_ptr(0); - /* Copy the clean address into a local temp, live across the loop. */ - t0 = clean_addr; - clean_addr = new_tmp_a64_local(s); - tcg_gen_mov_i64(clean_addr, t0); - - if (base != cpu_env) { - TCGv_ptr b = tcg_temp_local_new_ptr(); - tcg_gen_mov_ptr(b, base); - base = b; - } - gen_set_label(loop); t0 = tcg_temp_new_i64(); @@ -XXX,XX +XXX,XX @@ void gen_sve_ldr(DisasContext *s, TCGv_ptr base, int vofs, tcg_gen_brcondi_ptr(TCG_COND_LTU, i, len_align, loop); tcg_temp_free_ptr(i); - - if (base != cpu_env) { - tcg_temp_free_ptr(base); - assert(len_remain == 0); - } } /* @@ -XXX,XX +XXX,XX @@ void gen_sve_str(DisasContext *s, TCGv_ptr base, int vofs, TCGLabel *loop = gen_new_label(); TCGv_ptr tp, i = tcg_const_local_ptr(0); - /* Copy the clean address into a local temp, live across the loop. */ - t0 = clean_addr; - clean_addr = new_tmp_a64_local(s); - tcg_gen_mov_i64(clean_addr, t0); - - if (base != cpu_env) { - TCGv_ptr b = tcg_temp_local_new_ptr(); - tcg_gen_mov_ptr(b, base); - base = b; - } - gen_set_label(loop); t0 = tcg_temp_new_i64(); @@ -XXX,XX +XXX,XX @@ void gen_sve_str(DisasContext *s, TCGv_ptr base, int vofs, tcg_gen_brcondi_ptr(TCG_COND_LTU, i, len_align, loop); tcg_temp_free_ptr(i); - - if (base != cpu_env) { - tcg_temp_free_ptr(base); - assert(len_remain == 0); - } } /* Predicate register stores can be any multiple of 2. */ -- 2.34.1 Since tcg_temp_new_* is now identical, use those. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/arm/tcg/translate-sve.c | 6 +++--- target/arm/tcg/translate.c | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate-sve.c +++ b/target/arm/tcg/translate-sve.c @@ -XXX,XX +XXX,XX @@ static bool do_clast_vector(DisasContext *s, arg_rprr_esz *a, bool before) return true; } - last = tcg_temp_local_new_i32(); + last = tcg_temp_new_i32(); over = gen_new_label(); find_last_active(s, last, esz, a->pg); @@ -XXX,XX +XXX,XX @@ void gen_sve_ldr(DisasContext *s, TCGv_ptr base, int vofs, tcg_temp_free_i64(t0); } else { TCGLabel *loop = gen_new_label(); - TCGv_ptr tp, i = tcg_const_local_ptr(0); + TCGv_ptr tp, i = tcg_const_ptr(0); gen_set_label(loop); @@ -XXX,XX +XXX,XX @@ void gen_sve_str(DisasContext *s, TCGv_ptr base, int vofs, tcg_temp_free_i64(t0); } else { TCGLabel *loop = gen_new_label(); - TCGv_ptr tp, i = tcg_const_local_ptr(0); + TCGv_ptr tp, i = tcg_const_ptr(0); gen_set_label(loop); diff --git a/target/arm/tcg/translate.c b/target/arm/tcg/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/translate.c +++ b/target/arm/tcg/translate.c @@ -XXX,XX +XXX,XX @@ static bool op_strex(DisasContext *s, arg_STREX *a, MemOp mop, bool rel) tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL); } - addr = tcg_temp_local_new_i32(); + addr = tcg_temp_new_i32(); load_reg_var(s, addr, a->rn); tcg_gen_addi_i32(addr, addr, a->imm); @@ -XXX,XX +XXX,XX @@ static bool op_ldrex(DisasContext *s, arg_LDREX *a, MemOp mop, bool acq) return true; } - addr = tcg_temp_local_new_i32(); + addr = tcg_temp_new_i32(); load_reg_var(s, addr, a->rn); tcg_gen_addi_i32(addr, addr, a->imm); @@ -XXX,XX +XXX,XX @@ static bool trans_LE(DisasContext *s, arg_LE *a) * Decrement by 1 << (4 - LTPSIZE). We need to use a TCG local * so that decr stays live after the brcondi. */ - TCGv_i32 decr = tcg_temp_local_new_i32(); + TCGv_i32 decr = tcg_temp_new_i32(); TCGv_i32 ltpsize = load_cpu_field(v7m.ltpsize); tcg_gen_sub_i32(decr, tcg_constant_i32(4), ltpsize); tcg_gen_shl_i32(decr, tcg_constant_i32(1), decr); -- 2.34.1 Since tcg_temp_new is now identical, use that. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/cris/translate.c | 6 +++--- target/cris/translate_v10.c.inc | 10 +++++----- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/target/cris/translate.c b/target/cris/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/cris/translate.c +++ b/target/cris/translate.c @@ -XXX,XX +XXX,XX @@ static int dec_bound_r(CPUCRISState *env, DisasContext *dc) LOG_DIS("bound.%c $r%u, $r%u\n", memsize_char(size), dc->op1, dc->op2); cris_cc_mask(dc, CC_MASK_NZ); - l0 = tcg_temp_local_new(); + l0 = tcg_temp_new(); dec_prep_move_r(dc, dc->op1, dc->op2, size, 0, l0); cris_alu(dc, CC_OP_BOUND, cpu_R[dc->op2], cpu_R[dc->op2], l0, 4); tcg_temp_free(l0); @@ -XXX,XX +XXX,XX @@ static int dec_bound_m(CPUCRISState *env, DisasContext *dc) dc->op1, dc->postinc ? "+]" : "]", dc->op2); - l[0] = tcg_temp_local_new(); - l[1] = tcg_temp_local_new(); + l[0] = tcg_temp_new(); + l[1] = tcg_temp_new(); insn_len = dec_prep_alu_m(env, dc, 0, memsize, l[0], l[1]); cris_cc_mask(dc, CC_MASK_NZ); cris_alu(dc, CC_OP_BOUND, cpu_R[dc->op2], l[0], l[1], 4); diff --git a/target/cris/translate_v10.c.inc b/target/cris/translate_v10.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/cris/translate_v10.c.inc +++ b/target/cris/translate_v10.c.inc @@ -XXX,XX +XXX,XX @@ static void gen_store_v10_conditional(DisasContext *dc, TCGv addr, TCGv val, unsigned int size, int mem_index) { TCGLabel *l1 = gen_new_label(); - TCGv taddr = tcg_temp_local_new(); - TCGv tval = tcg_temp_local_new(); - TCGv t1 = tcg_temp_local_new(); + TCGv taddr = tcg_temp_new(); + TCGv tval = tcg_temp_new(); + TCGv t1 = tcg_temp_new(); dc->postinc = 0; cris_evaluate_flags(dc); @@ -XXX,XX +XXX,XX @@ static void dec10_reg_bound(DisasContext *dc, int size) { TCGv t; - t = tcg_temp_local_new(); + t = tcg_temp_new(); t_gen_zext(t, cpu_R[dc->src], size); cris_alu(dc, CC_OP_BOUND, cpu_R[dc->dst], cpu_R[dc->dst], t, 4); tcg_temp_free(t); @@ -XXX,XX +XXX,XX @@ static int dec10_ind_bound(CPUCRISState *env, DisasContext *dc, int rd = dc->dst; TCGv t; - t = tcg_temp_local_new(); + t = tcg_temp_new(); insn_len += dec10_prep_move_m(env, dc, 0, size, t); cris_alu(dc, CC_OP_BOUND, cpu_R[dc->dst], cpu_R[rd], t, 4); if (dc->dst == 15) { -- 2.34.1 Since tcg_temp_new_* is now identical, use those. Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/hexagon/idef-parser/README.rst | 4 ++-- target/hexagon/gen_tcg.h | 4 ++-- target/hexagon/genptr.c | 16 ++++++++-------- target/hexagon/idef-parser/parser-helpers.c | 4 ++-- target/hexagon/translate.c | 2 +- target/hexagon/README | 8 ++++---- target/hexagon/gen_tcg_funcs.py | 18 +++++++----------- 7 files changed, 26 insertions(+), 30 deletions(-) diff --git a/target/hexagon/idef-parser/README.rst b/target/hexagon/idef-parser/README.rst index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/idef-parser/README.rst +++ b/target/hexagon/idef-parser/README.rst @@ -XXX,XX +XXX,XX @@ generators the previous declarations are mapped to :: - int var1; -> TCGv_i32 var1 = tcg_temp_local_new_i32(); + int var1; -> TCGv_i32 var1 = tcg_temp_new_i32(); - int var2 = 0; -> TCGv_i32 var1 = tcg_temp_local_new_i32(); + int var2 = 0; -> TCGv_i32 var1 = tcg_temp_new_i32(); tcg_gen_movi_i32(j, ((int64_t) 0ULL)); which are later automatically freed at the end of the function they're declared diff --git a/target/hexagon/gen_tcg.h b/target/hexagon/gen_tcg.h index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/gen_tcg.h +++ b/target/hexagon/gen_tcg.h @@ -XXX,XX +XXX,XX @@ */ #define fGEN_TCG_PRED_LOAD(GET_EA, PRED, SIZE, SIGN) \ do { \ - TCGv LSB = tcg_temp_local_new(); \ + TCGv LSB = tcg_temp_new(); \ TCGLabel *label = gen_new_label(); \ tcg_gen_movi_tl(EA, 0); \ PRED; \ @@ -XXX,XX +XXX,XX @@ /* Predicated loads into a register pair */ #define fGEN_TCG_PRED_LOAD_PAIR(GET_EA, PRED) \ do { \ - TCGv LSB = tcg_temp_local_new(); \ + TCGv LSB = tcg_temp_new(); \ TCGLabel *label = gen_new_label(); \ tcg_gen_movi_tl(EA, 0); \ PRED; \ diff --git a/target/hexagon/genptr.c b/target/hexagon/genptr.c index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/genptr.c +++ b/target/hexagon/genptr.c @@ -XXX,XX +XXX,XX @@ static void gen_cond_call(DisasContext *ctx, TCGv pred, TCGCond cond, int pc_off) { TCGv next_PC; - TCGv lsb = tcg_temp_local_new(); + TCGv lsb = tcg_temp_new(); TCGLabel *skip = gen_new_label(); tcg_gen_andi_tl(lsb, pred, 1); gen_write_new_pc_pcrel(ctx, pc_off, cond, lsb); @@ -XXX,XX +XXX,XX @@ static void gen_cond_call(DisasContext *ctx, TCGv pred, static void gen_endloop0(DisasContext *ctx) { - TCGv lpcfg = tcg_temp_local_new(); + TCGv lpcfg = tcg_temp_new(); GET_USR_FIELD(USR_LPCFG, lpcfg); @@ -XXX,XX +XXX,XX @@ static void gen_sar(TCGv dst, TCGv src, TCGv shift_amt) /* Bidirectional shift right with saturation */ static void gen_asr_r_r_sat(TCGv RdV, TCGv RsV, TCGv RtV) { - TCGv shift_amt = tcg_temp_local_new(); + TCGv shift_amt = tcg_temp_new(); TCGLabel *positive = gen_new_label(); TCGLabel *done = gen_new_label(); @@ -XXX,XX +XXX,XX @@ static void gen_asr_r_r_sat(TCGv RdV, TCGv RsV, TCGv RtV) /* Bidirectional shift left with saturation */ static void gen_asl_r_r_sat(TCGv RdV, TCGv RsV, TCGv RtV) { - TCGv shift_amt = tcg_temp_local_new(); + TCGv shift_amt = tcg_temp_new(); TCGLabel *positive = gen_new_label(); TCGLabel *done = gen_new_label(); @@ -XXX,XX +XXX,XX @@ static void gen_log_vreg_write(DisasContext *ctx, intptr_t srcoff, int num, intptr_t dstoff; if (is_predicated) { - TCGv cancelled = tcg_temp_local_new(); + TCGv cancelled = tcg_temp_new(); label_end = gen_new_label(); /* Don't do anything if the slot was cancelled */ @@ -XXX,XX +XXX,XX @@ static void gen_log_qreg_write(intptr_t srcoff, int num, int vnew, intptr_t dstoff; if (is_predicated) { - TCGv cancelled = tcg_temp_local_new(); + TCGv cancelled = tcg_temp_new(); label_end = gen_new_label(); /* Don't do anything if the slot was cancelled */ @@ -XXX,XX +XXX,XX @@ void gen_satu_i64_ovfl(TCGv ovfl, TCGv_i64 dest, TCGv_i64 source, int width) /* Implements the fADDSAT64 macro in TCG */ void gen_add_sat_i64(TCGv_i64 ret, TCGv_i64 a, TCGv_i64 b) { - TCGv_i64 sum = tcg_temp_local_new_i64(); + TCGv_i64 sum = tcg_temp_new_i64(); TCGv_i64 xor = tcg_temp_new_i64(); TCGv_i64 cond1 = tcg_temp_new_i64(); - TCGv_i64 cond2 = tcg_temp_local_new_i64(); + TCGv_i64 cond2 = tcg_temp_new_i64(); TCGv_i64 cond3 = tcg_temp_new_i64(); TCGv_i64 mask = tcg_constant_i64(0x8000000000000000ULL); TCGv_i64 max_pos = tcg_constant_i64(0x7FFFFFFFFFFFFFFFLL); diff --git a/target/hexagon/idef-parser/parser-helpers.c b/target/hexagon/idef-parser/parser-helpers.c index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/idef-parser/parser-helpers.c +++ b/target/hexagon/idef-parser/parser-helpers.c @@ -XXX,XX +XXX,XX @@ HexValue gen_tmp_local(Context *c, rvalue.is_manual = false; rvalue.tmp.index = c->inst.tmp_count; OUT(c, locp, "TCGv_i", &bit_width, " tmp_", &c->inst.tmp_count, - " = tcg_temp_local_new_i", &bit_width, "();\n"); + " = tcg_temp_new_i", &bit_width, "();\n"); c->inst.tmp_count++; return rvalue; } @@ -XXX,XX +XXX,XX @@ void gen_varid_allocate(Context *c, new_var.signedness = signedness; EMIT_HEAD(c, "TCGv_%s %s", bit_suffix, varid->var.name->str); - EMIT_HEAD(c, " = tcg_temp_local_new_%s();\n", bit_suffix); + EMIT_HEAD(c, " = tcg_temp_new_%s();\n", bit_suffix); g_array_append_val(c->inst.allocated, new_var); } diff --git a/target/hexagon/translate.c b/target/hexagon/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/translate.c +++ b/target/hexagon/translate.c @@ -XXX,XX +XXX,XX @@ void process_store(DisasContext *ctx, int slot_num) tcg_temp_free(cancelled); } { - TCGv address = tcg_temp_local_new(); + TCGv address = tcg_temp_new(); tcg_gen_mov_tl(address, hex_store_addr[slot_num]); /* diff --git a/target/hexagon/README b/target/hexagon/README index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/README +++ b/target/hexagon/README @@ -XXX,XX +XXX,XX @@ tcg_funcs_generated.c.inc Insn *insn, Packet *pkt) { - TCGv RdV = tcg_temp_local_new(); + TCGv RdV = tcg_temp_new(); const int RdN = insn->regno[0]; TCGv RsV = hex_gpr[insn->regno[1]]; TCGv RtV = hex_gpr[insn->regno[2]]; @@ -XXX,XX +XXX,XX @@ istruction. const int VdN = insn->regno[0]; const intptr_t VdV_off = ctx_future_vreg_off(ctx, VdN, 1, true); - TCGv_ptr VdV = tcg_temp_local_new_ptr(); + TCGv_ptr VdV = tcg_temp_new_ptr(); tcg_gen_addi_ptr(VdV, cpu_env, VdV_off); const int VuN = insn->regno[1]; const intptr_t VuV_off = vreg_src_off(ctx, VuN); - TCGv_ptr VuV = tcg_temp_local_new_ptr(); + TCGv_ptr VuV = tcg_temp_new_ptr(); const int VvN = insn->regno[2]; const intptr_t VvV_off = vreg_src_off(ctx, VvN); - TCGv_ptr VvV = tcg_temp_local_new_ptr(); + TCGv_ptr VvV = tcg_temp_new_ptr(); tcg_gen_addi_ptr(VuV, cpu_env, VuV_off); tcg_gen_addi_ptr(VvV, cpu_env, VvV_off); TCGv slot = tcg_constant_tl(insn->slot); diff --git a/target/hexagon/gen_tcg_funcs.py b/target/hexagon/gen_tcg_funcs.py index XXXXXXX..XXXXXXX 100755 --- a/target/hexagon/gen_tcg_funcs.py +++ b/target/hexagon/gen_tcg_funcs.py @@ -XXX,XX +XXX,XX @@ ## Helpers for gen_tcg_func ## def gen_decl_ea_tcg(f, tag): - if ('A_CONDEXEC' in hex_common.attribdict[tag] or - 'A_LOAD' in hex_common.attribdict[tag]): - f.write(" TCGv EA = tcg_temp_local_new();\n") - else: - f.write(" TCGv EA = tcg_temp_new();\n") + f.write(" TCGv EA = tcg_temp_new();\n") def gen_free_ea_tcg(f): f.write(" tcg_temp_free(EA);\n") def genptr_decl_pair_writable(f, tag, regtype, regid, regno): regN="%s%sN" % (regtype,regid) - f.write(" TCGv_i64 %s%sV = tcg_temp_local_new_i64();\n" % \ + f.write(" TCGv_i64 %s%sV = tcg_temp_new_i64();\n" % \ (regtype, regid)) if (regtype == "C"): f.write(" const int %s = insn->regno[%d] + HEX_REG_SA0;\n" % \ @@ -XXX,XX +XXX,XX @@ def genptr_decl_pair_writable(f, tag, regtype, regid, regno): def genptr_decl_writable(f, tag, regtype, regid, regno): regN="%s%sN" % (regtype,regid) - f.write(" TCGv %s%sV = tcg_temp_local_new();\n" % \ + f.write(" TCGv %s%sV = tcg_temp_new();\n" % \ (regtype, regid)) if (regtype == "C"): f.write(" const int %s = insn->regno[%d] + HEX_REG_SA0;\n" % \ @@ -XXX,XX +XXX,XX @@ def genptr_decl(f, tag, regtype, regid, regno): regN="%s%sN" % (regtype,regid) if (regtype == "R"): if (regid in {"ss", "tt"}): - f.write(" TCGv_i64 %s%sV = tcg_temp_local_new_i64();\n" % \ + f.write(" TCGv_i64 %s%sV = tcg_temp_new_i64();\n" % \ (regtype, regid)) f.write(" const int %s = insn->regno[%d];\n" % \ (regN, regno)) @@ -XXX,XX +XXX,XX @@ def genptr_decl(f, tag, regtype, regid, regno): print("Bad register parse: ", regtype, regid) elif (regtype == "C"): if (regid == "ss"): - f.write(" TCGv_i64 %s%sV = tcg_temp_local_new_i64();\n" % \ + f.write(" TCGv_i64 %s%sV = tcg_temp_new_i64();\n" % \ (regtype, regid)) f.write(" const int %s = insn->regno[%d] + HEX_REG_SA0;\n" % \ (regN, regno)) elif (regid == "dd"): genptr_decl_pair_writable(f, tag, regtype, regid, regno) elif (regid == "s"): - f.write(" TCGv %s%sV = tcg_temp_local_new();\n" % \ + f.write(" TCGv %s%sV = tcg_temp_new();\n" % \ (regtype, regid)) f.write(" const int %s%sN = insn->regno[%d] + HEX_REG_SA0;\n" % \ (regtype, regid, regno)) @@ -XXX,XX +XXX,XX @@ def genptr_dst_write_opn(f,regtype, regid, tag): ## We produce: ## static void generate_A2_add(DisasContext *ctx) ## { -## TCGv RdV = tcg_temp_local_new(); +## TCGv RdV = tcg_temp_new(); ## const int RdN = insn->regno[0]; ## TCGv RsV = hex_gpr[insn->regno[1]]; ## TCGv RtV = hex_gpr[insn->regno[2]]; -- 2.34.1 This is now equivalent to gen_tmp. Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/hexagon/idef-parser/parser-helpers.c | 24 ++------------------- 1 file changed, 2 insertions(+), 22 deletions(-) diff --git a/target/hexagon/idef-parser/parser-helpers.c b/target/hexagon/idef-parser/parser-helpers.c index XXXXXXX..XXXXXXX 100644 --- a/target/hexagon/idef-parser/parser-helpers.c +++ b/target/hexagon/idef-parser/parser-helpers.c @@ -XXX,XX +XXX,XX @@ HexValue gen_tmp(Context *c, return rvalue; } -HexValue gen_tmp_local(Context *c, - YYLTYPE *locp, - unsigned bit_width, - HexSignedness signedness) -{ - HexValue rvalue; - assert(bit_width == 32 || bit_width == 64); - memset(&rvalue, 0, sizeof(HexValue)); - rvalue.type = TEMP; - rvalue.bit_width = bit_width; - rvalue.signedness = signedness; - rvalue.is_dotnew = false; - rvalue.is_manual = false; - rvalue.tmp.index = c->inst.tmp_count; - OUT(c, locp, "TCGv_i", &bit_width, " tmp_", &c->inst.tmp_count, - " = tcg_temp_new_i", &bit_width, "();\n"); - c->inst.tmp_count++; - return rvalue; -} - HexValue gen_tmp_value(Context *c, YYLTYPE *locp, const char *value, @@ -XXX,XX +XXX,XX @@ HexValue gen_rvalue_sat(Context *c, YYLTYPE *locp, HexSat *sat, assert_signedness(c, locp, sat->signedness); unsigned_str = (sat->signedness == UNSIGNED) ? "u" : ""; - res = gen_tmp_local(c, locp, value->bit_width, sat->signedness); - ovfl = gen_tmp_local(c, locp, 32, sat->signedness); + res = gen_tmp(c, locp, value->bit_width, sat->signedness); + ovfl = gen_tmp(c, locp, 32, sat->signedness); OUT(c, locp, "gen_sat", unsigned_str, "_", bit_suffix, "_ovfl("); OUT(c, locp, &ovfl, ", ", &res, ", ", value, ", ", &width->imm.value, ");\n"); -- 2.34.1 This wasn't actually used at all, just some unused macro re-definitions. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/hppa/translate.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/target/hppa/translate.c b/target/hppa/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -XXX,XX +XXX,XX @@ #undef TCGv #undef tcg_temp_new #undef tcg_global_mem_new -#undef tcg_temp_local_new #undef tcg_temp_free #if TARGET_LONG_BITS == 64 @@ -XXX,XX +XXX,XX @@ #define tcg_temp_new tcg_temp_new_i64 #define tcg_global_mem_new tcg_global_mem_new_i64 -#define tcg_temp_local_new tcg_temp_local_new_i64 #define tcg_temp_free tcg_temp_free_i64 #define tcg_gen_movi_reg tcg_gen_movi_i64 @@ -XXX,XX +XXX,XX @@ #define TCGv_reg TCGv_i32 #define tcg_temp_new tcg_temp_new_i32 #define tcg_global_mem_new tcg_global_mem_new_i32 -#define tcg_temp_local_new tcg_temp_local_new_i32 #define tcg_temp_free tcg_temp_free_i32 #define tcg_gen_movi_reg tcg_gen_movi_i32 -- 2.34.1 Since tcg_temp_new is now identical, use that. In some cases we can avoid a copy from A0 or T0. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/i386/tcg/translate.c | 27 +++++++++------------------ 1 file changed, 9 insertions(+), 18 deletions(-) diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -XXX,XX +XXX,XX @@ static bool disas_insn(DisasContext *s, CPUState *cpu) if (mod == 3) { goto illegal_op; } - a0 = tcg_temp_local_new(); - t0 = tcg_temp_local_new(); + a0 = s->A0; + t0 = s->T0; label1 = gen_new_label(); - tcg_gen_mov_tl(a0, s->A0); - tcg_gen_mov_tl(t0, s->T0); - gen_set_label(label1); t1 = tcg_temp_new(); t2 = tcg_temp_new(); @@ -XXX,XX +XXX,XX @@ static bool disas_insn(DisasContext *s, CPUState *cpu) tcg_gen_brcond_tl(TCG_COND_NE, t0, t2, label1); tcg_temp_free(t2); - tcg_temp_free(a0); tcg_gen_neg_tl(s->T0, t0); - tcg_temp_free(t0); } else { tcg_gen_neg_tl(s->T0, s->T0); if (mod != 3) { @@ -XXX,XX +XXX,XX @@ static bool disas_insn(DisasContext *s, CPUState *cpu) #endif { TCGLabel *label1; - TCGv t0, t1, t2, a0; + TCGv t0, t1, t2; if (!PE(s) || VM86(s)) goto illegal_op; - t0 = tcg_temp_local_new(); - t1 = tcg_temp_local_new(); - t2 = tcg_temp_local_new(); + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + t2 = tcg_temp_new(); ot = MO_16; modrm = x86_ldub_code(env, s); reg = (modrm >> 3) & 7; @@ -XXX,XX +XXX,XX @@ static bool disas_insn(DisasContext *s, CPUState *cpu) if (mod != 3) { gen_lea_modrm(env, s, modrm); gen_op_ld_v(s, ot, t0, s->A0); - a0 = tcg_temp_local_new(); - tcg_gen_mov_tl(a0, s->A0); } else { gen_op_mov_v_reg(s, ot, t0, rm); - a0 = NULL; } gen_op_mov_v_reg(s, ot, t1, reg); tcg_gen_andi_tl(s->tmp0, t0, 3); @@ -XXX,XX +XXX,XX @@ static bool disas_insn(DisasContext *s, CPUState *cpu) tcg_gen_movi_tl(t2, CC_Z); gen_set_label(label1); if (mod != 3) { - gen_op_st_v(s, ot, t0, a0); - tcg_temp_free(a0); + gen_op_st_v(s, ot, t0, s->A0); } else { gen_op_mov_reg_v(s, ot, rm, t0); } @@ -XXX,XX +XXX,XX @@ static bool disas_insn(DisasContext *s, CPUState *cpu) modrm = x86_ldub_code(env, s); reg = ((modrm >> 3) & 7) | REX_R(s); gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0); - t0 = tcg_temp_local_new(); + t0 = tcg_temp_new(); gen_update_cc_op(s); if (b == 0x102) { gen_helper_lar(t0, cpu_env, s->T0); @@ -XXX,XX +XXX,XX @@ static void i386_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cpu) dc->tmp2_i32 = tcg_temp_new_i32(); dc->tmp3_i32 = tcg_temp_new_i32(); dc->tmp4 = tcg_temp_new(); - dc->cc_srcT = tcg_temp_local_new(); + dc->cc_srcT = tcg_temp_new(); } static void i386_tr_tb_start(DisasContextBase *db, CPUState *cpu) -- 2.34.1 Since tcg_temp_new is now identical, use that. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/mips/tcg/translate.c | 57 ++++++------------------ target/mips/tcg/nanomips_translate.c.inc | 4 +- 2 files changed, 16 insertions(+), 45 deletions(-) diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/mips/tcg/translate.c +++ b/target/mips/tcg/translate.c @@ -XXX,XX +XXX,XX @@ static void gen_arith_imm(DisasContext *ctx, uint32_t opc, switch (opc) { case OPC_ADDI: { - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); TCGLabel *l1 = gen_new_label(); @@ -XXX,XX +XXX,XX @@ static void gen_arith_imm(DisasContext *ctx, uint32_t opc, #if defined(TARGET_MIPS64) case OPC_DADDI: { - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); TCGLabel *l1 = gen_new_label(); @@ -XXX,XX +XXX,XX @@ static void gen_arith(DisasContext *ctx, uint32_t opc, switch (opc) { case OPC_ADD: { - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); TCGLabel *l1 = gen_new_label(); @@ -XXX,XX +XXX,XX @@ static void gen_arith(DisasContext *ctx, uint32_t opc, break; case OPC_SUB: { - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); TCGLabel *l1 = gen_new_label(); @@ -XXX,XX +XXX,XX @@ static void gen_arith(DisasContext *ctx, uint32_t opc, #if defined(TARGET_MIPS64) case OPC_DADD: { - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); TCGLabel *l1 = gen_new_label(); @@ -XXX,XX +XXX,XX @@ static void gen_arith(DisasContext *ctx, uint32_t opc, break; case OPC_DSUB: { - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); TCGv t1 = tcg_temp_new(); TCGv t2 = tcg_temp_new(); TCGLabel *l1 = gen_new_label(); @@ -XXX,XX +XXX,XX @@ static void gen_loongson_integer(DisasContext *ctx, uint32_t opc, return; } - switch (opc) { - case OPC_MULT_G_2E: - case OPC_MULT_G_2F: - case OPC_MULTU_G_2E: - case OPC_MULTU_G_2F: -#if defined(TARGET_MIPS64) - case OPC_DMULT_G_2E: - case OPC_DMULT_G_2F: - case OPC_DMULTU_G_2E: - case OPC_DMULTU_G_2F: -#endif - t0 = tcg_temp_new(); - t1 = tcg_temp_new(); - break; - default: - t0 = tcg_temp_local_new(); - t1 = tcg_temp_local_new(); - break; - } - + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); gen_load_gpr(t0, rs); gen_load_gpr(t1, rt); @@ -XXX,XX +XXX,XX @@ static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt) TCGCond cond; opc = MASK_LMMI(ctx->opcode); - switch (opc) { - case OPC_ADD_CP2: - case OPC_SUB_CP2: - case OPC_DADD_CP2: - case OPC_DSUB_CP2: - t0 = tcg_temp_local_new_i64(); - t1 = tcg_temp_local_new_i64(); - break; - default: - t0 = tcg_temp_new_i64(); - t1 = tcg_temp_new_i64(); - break; - } - check_cp1_enabled(ctx); + + t0 = tcg_temp_new_i64(); + t1 = tcg_temp_new_i64(); gen_load_fpr64(ctx, t0, rs); gen_load_fpr64(ctx, t1, rt); @@ -XXX,XX +XXX,XX @@ static void gen_mftr(CPUMIPSState *env, DisasContext *ctx, int rt, int rd, int u, int sel, int h) { int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC); - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); if ((env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP)) == 0 && ((env->tcs[other_tc].CP0_TCBind & (0xf << CP0TCBd_CurVPE)) != @@ -XXX,XX +XXX,XX @@ static void gen_mttr(CPUMIPSState *env, DisasContext *ctx, int rd, int rt, int u, int sel, int h) { int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC); - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); gen_load_gpr(t0, rt); if ((env->CP0_VPEConf0 & (1 << CP0VPEC0_MVP)) == 0 && @@ -XXX,XX +XXX,XX @@ static void gen_flt3_arith(DisasContext *ctx, uint32_t opc, case OPC_ALNV_PS: check_ps(ctx); { - TCGv t0 = tcg_temp_local_new(); + TCGv t0 = tcg_temp_new(); TCGv_i32 fp = tcg_temp_new_i32(); TCGv_i32 fph = tcg_temp_new_i32(); TCGLabel *l1 = gen_new_label(); diff --git a/target/mips/tcg/nanomips_translate.c.inc b/target/mips/tcg/nanomips_translate.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/mips/tcg/nanomips_translate.c.inc +++ b/target/mips/tcg/nanomips_translate.c.inc @@ -XXX,XX +XXX,XX @@ static void gen_llwp(DisasContext *ctx, uint32_t base, int16_t offset, static void gen_scwp(DisasContext *ctx, uint32_t base, int16_t offset, uint32_t reg1, uint32_t reg2, bool eva) { - TCGv taddr = tcg_temp_local_new(); - TCGv lladdr = tcg_temp_local_new(); + TCGv taddr = tcg_temp_new(); + TCGv lladdr = tcg_temp_new(); TCGv_i64 tval = tcg_temp_new_i64(); TCGv_i64 llval = tcg_temp_new_i64(); TCGv_i64 val = tcg_temp_new_i64(); -- 2.34.1 Since tcg_temp_new is now identical, use that. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/ppc/translate.c | 6 +++--- target/ppc/translate/spe-impl.c.inc | 8 ++++---- target/ppc/translate/vmx-impl.c.inc | 4 ++-- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -XXX,XX +XXX,XX @@ static void gen_bcond(DisasContext *ctx, int type) TCGv target; if (type == BCOND_LR || type == BCOND_CTR || type == BCOND_TAR) { - target = tcg_temp_local_new(); + target = tcg_temp_new(); if (type == BCOND_CTR) { tcg_gen_mov_tl(target, cpu_ctr); } else if (type == BCOND_TAR) { @@ -XXX,XX +XXX,XX @@ static inline void gen_405_mulladd_insn(DisasContext *ctx, int opc2, int opc3, { TCGv t0, t1; - t0 = tcg_temp_local_new(); - t1 = tcg_temp_local_new(); + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); switch (opc3 & 0x0D) { case 0x05: diff --git a/target/ppc/translate/spe-impl.c.inc b/target/ppc/translate/spe-impl.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/ppc/translate/spe-impl.c.inc +++ b/target/ppc/translate/spe-impl.c.inc @@ -XXX,XX +XXX,XX @@ static inline void gen_op_evsrwu(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) { TCGLabel *l1 = gen_new_label(); TCGLabel *l2 = gen_new_label(); - TCGv_i32 t0 = tcg_temp_local_new_i32(); + TCGv_i32 t0 = tcg_temp_new_i32(); /* No error here: 6 bits are used */ tcg_gen_andi_i32(t0, arg2, 0x3F); @@ -XXX,XX +XXX,XX @@ static inline void gen_op_evsrws(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) { TCGLabel *l1 = gen_new_label(); TCGLabel *l2 = gen_new_label(); - TCGv_i32 t0 = tcg_temp_local_new_i32(); + TCGv_i32 t0 = tcg_temp_new_i32(); /* No error here: 6 bits are used */ tcg_gen_andi_i32(t0, arg2, 0x3F); @@ -XXX,XX +XXX,XX @@ static inline void gen_op_evslw(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2) { TCGLabel *l1 = gen_new_label(); TCGLabel *l2 = gen_new_label(); - TCGv_i32 t0 = tcg_temp_local_new_i32(); + TCGv_i32 t0 = tcg_temp_new_i32(); /* No error here: 6 bits are used */ tcg_gen_andi_i32(t0, arg2, 0x3F); @@ -XXX,XX +XXX,XX @@ static inline void gen_evsel(DisasContext *ctx) TCGLabel *l2 = gen_new_label(); TCGLabel *l3 = gen_new_label(); TCGLabel *l4 = gen_new_label(); - TCGv_i32 t0 = tcg_temp_local_new_i32(); + TCGv_i32 t0 = tcg_temp_new_i32(); tcg_gen_andi_i32(t0, cpu_crf[ctx->opcode & 0x07], 1 << 3); tcg_gen_brcondi_i32(TCG_COND_EQ, t0, 0, l1); diff --git a/target/ppc/translate/vmx-impl.c.inc b/target/ppc/translate/vmx-impl.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/ppc/translate/vmx-impl.c.inc +++ b/target/ppc/translate/vmx-impl.c.inc @@ -XXX,XX +XXX,XX @@ static bool do_vcmpq(DisasContext *ctx, arg_VX_bf *a, bool sign) REQUIRE_INSNS_FLAGS2(ctx, ISA310); REQUIRE_VECTOR(ctx); - vra = tcg_temp_local_new_i64(); - vrb = tcg_temp_local_new_i64(); + vra = tcg_temp_new_i64(); + vrb = tcg_temp_new_i64(); gt = gen_new_label(); lt = gen_new_label(); done = gen_new_label(); -- 2.34.1 Since tcg_temp_new_* is now identical, use those. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/xtensa/translate.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/xtensa/translate.c +++ b/target/xtensa/translate.c @@ -XXX,XX +XXX,XX @@ static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa) static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa) { if (!dc->sar_m32_allocated) { - dc->sar_m32 = tcg_temp_local_new_i32(); + dc->sar_m32 = tcg_temp_new_i32(); dc->sar_m32_allocated = true; } tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f); @@ -XXX,XX +XXX,XX @@ static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc) if (i == 0 || arg_copy[i].resource != resource) { resource = arg_copy[i].resource; if (arg_copy[i].arg->num_bits <= 32) { - temp = tcg_temp_local_new_i32(); + temp = tcg_temp_new_i32(); tcg_gen_mov_i32(temp, arg_copy[i].arg->in); } else if (arg_copy[i].arg->num_bits <= 64) { - temp = tcg_temp_local_new_i64(); + temp = tcg_temp_new_i64(); tcg_gen_mov_i64(temp, arg_copy[i].arg->in); } else { g_assert_not_reached(); @@ -XXX,XX +XXX,XX @@ static void xtensa_tr_tb_start(DisasContextBase *dcbase, CPUState *cpu) DisasContext *dc = container_of(dcbase, DisasContext, base); if (dc->icount) { - dc->next_icount = tcg_temp_local_new_i32(); + dc->next_icount = tcg_temp_new_i32(); } } @@ -XXX,XX +XXX,XX @@ static void gen_check_atomctl(DisasContext *dc, TCGv_i32 addr) static void translate_s32c1i(DisasContext *dc, const OpcodeArg arg[], const uint32_t par[]) { - TCGv_i32 tmp = tcg_temp_local_new_i32(); - TCGv_i32 addr = tcg_temp_local_new_i32(); + TCGv_i32 tmp = tcg_temp_new_i32(); + TCGv_i32 addr = tcg_temp_new_i32(); MemOp mop; tcg_gen_mov_i32(tmp, arg[0].in); @@ -XXX,XX +XXX,XX @@ static void translate_s32ex(DisasContext *dc, const OpcodeArg arg[], const uint32_t par[]) { TCGv_i32 prev = tcg_temp_new_i32(); - TCGv_i32 addr = tcg_temp_local_new_i32(); - TCGv_i32 res = tcg_temp_local_new_i32(); + TCGv_i32 addr = tcg_temp_new_i32(); + TCGv_i32 res = tcg_temp_new_i32(); TCGLabel *label = gen_new_label(); MemOp mop; -- 2.34.1 Since tcg_temp_new_i32 is now identical, use that. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/exec/gen-icount.h | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/include/exec/gen-icount.h b/include/exec/gen-icount.h index XXXXXXX..XXXXXXX 100644 --- a/include/exec/gen-icount.h +++ b/include/exec/gen-icount.h @@ -XXX,XX +XXX,XX @@ static inline void gen_io_start(void) static inline void gen_tb_start(const TranslationBlock *tb) { - TCGv_i32 count; - - if (tb_cflags(tb) & CF_USE_ICOUNT) { - count = tcg_temp_local_new_i32(); - } else { - count = tcg_temp_new_i32(); - } + TCGv_i32 count = tcg_temp_new_i32(); tcg_gen_ld_i32(count, cpu_env, offsetof(ArchCPU, neg.icount_decr.u32) - -- 2.34.1 These symbols are now unused. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- include/tcg/tcg-op.h | 2 -- include/tcg/tcg.h | 28 ---------------------------- tcg/tcg.c | 16 ---------------- 3 files changed, 46 deletions(-) diff --git a/include/tcg/tcg-op.h b/include/tcg/tcg-op.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg-op.h +++ b/include/tcg/tcg-op.h @@ -XXX,XX +XXX,XX @@ static inline void tcg_gen_plugin_cb_end(void) #if TARGET_LONG_BITS == 32 #define tcg_temp_new() tcg_temp_new_i32() #define tcg_global_mem_new tcg_global_mem_new_i32 -#define tcg_temp_local_new() tcg_temp_local_new_i32() #define tcg_temp_free tcg_temp_free_i32 #define tcg_gen_qemu_ld_tl tcg_gen_qemu_ld_i32 #define tcg_gen_qemu_st_tl tcg_gen_qemu_st_i32 #else #define tcg_temp_new() tcg_temp_new_i64() #define tcg_global_mem_new tcg_global_mem_new_i64 -#define tcg_temp_local_new() tcg_temp_local_new_i64() #define tcg_temp_free tcg_temp_free_i64 #define tcg_gen_qemu_ld_tl tcg_gen_qemu_ld_i64 #define tcg_gen_qemu_st_tl tcg_gen_qemu_st_i64 diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index XXXXXXX..XXXXXXX 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -XXX,XX +XXX,XX @@ static inline TCGv_i32 tcg_temp_new_i32(void) return temp_tcgv_i32(t); } -static inline TCGv_i32 tcg_temp_local_new_i32(void) -{ - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I32, TEMP_TB); - return temp_tcgv_i32(t); -} - static inline TCGv_i64 tcg_global_mem_new_i64(TCGv_ptr reg, intptr_t offset, const char *name) { @@ -XXX,XX +XXX,XX @@ static inline TCGv_i64 tcg_temp_new_i64(void) return temp_tcgv_i64(t); } -static inline TCGv_i64 tcg_temp_local_new_i64(void) -{ - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I64, TEMP_TB); - return temp_tcgv_i64(t); -} - /* Used only by tcg infrastructure: tcg-op.c or plugin-gen.c */ static inline TCGv_i128 tcg_temp_ebb_new_i128(void) { @@ -XXX,XX +XXX,XX @@ static inline TCGv_i128 tcg_temp_new_i128(void) return temp_tcgv_i128(t); } -static inline TCGv_i128 tcg_temp_local_new_i128(void) -{ - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_I128, TEMP_TB); - return temp_tcgv_i128(t); -} - static inline TCGv_ptr tcg_global_mem_new_ptr(TCGv_ptr reg, intptr_t offset, const char *name) { @@ -XXX,XX +XXX,XX @@ static inline TCGv_ptr tcg_temp_new_ptr(void) return temp_tcgv_ptr(t); } -static inline TCGv_ptr tcg_temp_local_new_ptr(void) -{ - TCGTemp *t = tcg_temp_new_internal(TCG_TYPE_PTR, TEMP_TB); - return temp_tcgv_ptr(t); -} - #if defined(CONFIG_DEBUG_TCG) /* If you call tcg_clear_temp_count() at the start of a section of * code which is not supposed to leak any TCG temporaries, then @@ -XXX,XX +XXX,XX @@ void tcg_optimize(TCGContext *s); /* Allocate a new temporary and initialize it with a constant. */ TCGv_i32 tcg_const_i32(int32_t val); TCGv_i64 tcg_const_i64(int64_t val); -TCGv_i32 tcg_const_local_i32(int32_t val); -TCGv_i64 tcg_const_local_i64(int64_t val); TCGv_vec tcg_const_zeros_vec(TCGType); TCGv_vec tcg_const_ones_vec(TCGType); TCGv_vec tcg_const_zeros_vec_matching(TCGv_vec); @@ -XXX,XX +XXX,XX @@ TCGv_vec tcg_constant_vec_matching(TCGv_vec match, unsigned vece, int64_t val); #if UINTPTR_MAX == UINT32_MAX # define tcg_const_ptr(x) ((TCGv_ptr)tcg_const_i32((intptr_t)(x))) -# define tcg_const_local_ptr(x) ((TCGv_ptr)tcg_const_local_i32((intptr_t)(x))) # define tcg_constant_ptr(x) ((TCGv_ptr)tcg_constant_i32((intptr_t)(x))) #else # define tcg_const_ptr(x) ((TCGv_ptr)tcg_const_i64((intptr_t)(x))) -# define tcg_const_local_ptr(x) ((TCGv_ptr)tcg_const_local_i64((intptr_t)(x))) # define tcg_constant_ptr(x) ((TCGv_ptr)tcg_constant_i64((intptr_t)(x))) #endif diff --git a/tcg/tcg.c b/tcg/tcg.c index XXXXXXX..XXXXXXX 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -XXX,XX +XXX,XX @@ TCGv_i64 tcg_const_i64(int64_t val) return t0; } -TCGv_i32 tcg_const_local_i32(int32_t val) -{ - TCGv_i32 t0; - t0 = tcg_temp_local_new_i32(); - tcg_gen_movi_i32(t0, val); - return t0; -} - -TCGv_i64 tcg_const_local_i64(int64_t val) -{ - TCGv_i64 t0; - t0 = tcg_temp_local_new_i64(); - tcg_gen_movi_i64(t0, val); - return t0; -} - #if defined(CONFIG_DEBUG_TCG) void tcg_clear_temp_count(void) { -- 2.34.1 Rewrite the sections which talked about 'local temporaries'. Remove some assumptions which no longer hold. Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- docs/devel/tcg-ops.rst | 230 +++++++++++++++++++++++------------------ 1 file changed, 129 insertions(+), 101 deletions(-) diff --git a/docs/devel/tcg-ops.rst b/docs/devel/tcg-ops.rst index XXXXXXX..XXXXXXX 100644 --- a/docs/devel/tcg-ops.rst +++ b/docs/devel/tcg-ops.rst @@ -XXX,XX +XXX,XX @@ TCG Intermediate Representation Introduction ============ -TCG (Tiny Code Generator) began as a generic backend for a C -compiler. It was simplified to be used in QEMU. It also has its roots -in the QOP code generator written by Paul Brook. +TCG (Tiny Code Generator) began as a generic backend for a C compiler. +It was simplified to be used in QEMU. It also has its roots in the +QOP code generator written by Paul Brook. Definitions =========== -TCG receives RISC-like *TCG ops* and performs some optimizations on them, -including liveness analysis and trivial constant expression -evaluation. TCG ops are then implemented in the host CPU back end, -also known as the TCG target. - -The TCG *target* is the architecture for which we generate the -code. It is of course not the same as the "target" of QEMU which is -the emulated architecture. As TCG started as a generic C backend used -for cross compiling, it is assumed that the TCG target is different -from the host, although it is never the case for QEMU. +The TCG *target* is the architecture for which we generate the code. +It is of course not the same as the "target" of QEMU which is the +emulated architecture. As TCG started as a generic C backend used +for cross compiling, the assumption was that TCG target might be +different from the host, although this is never the case for QEMU. In this document, we use *guest* to specify what architecture we are emulating; *target* always means the TCG target, the machine on which we are running QEMU. -A TCG *function* corresponds to a QEMU Translated Block (TB). - -A TCG *temporary* is a variable only live in a basic block. Temporaries are allocated explicitly in each function. - -A TCG *local temporary* is a variable only live in a function. Local temporaries are allocated explicitly in each function. - -A TCG *global* is a variable which is live in all the functions -(equivalent of a C global variable). They are defined before the -functions defined. A TCG global can be a memory location (e.g. a QEMU -CPU register), a fixed host register (e.g. the QEMU CPU state pointer) -or a memory location which is stored in a register outside QEMU TBs -(not implemented yet). - -A TCG *basic block* corresponds to a list of instructions terminated -by a branch instruction. - An operation with *undefined behavior* may result in a crash. An operation with *unspecified behavior* shall not crash. However, the result may be one of several possibilities so may be considered an *undefined result*. -Intermediate representation -=========================== +Basic Blocks +============ -Introduction ------------- +A TCG *basic block* is a single entry, multiple exit region which +corresponds to a list of instructions terminated by a label, or +any branch instruction. -TCG instructions operate on variables which are temporaries, local -temporaries or globals. TCG instructions and variables are strongly -typed. Two types are supported: 32 bit integers and 64 bit -integers. Pointers are defined as an alias to 32 bit or 64 bit -integers depending on the TCG target word size. +A TCG *extended basic block* is a single entry, multiple exit region +which corresponds to a list of instructions terminated by a label or +an unconditional branch. Specifically, an extended basic block is +a sequence of basic blocks connected by the fall-through paths of +zero or more conditional branch instructions. -Each instruction has a fixed number of output variable operands, input -variable operands and always constant operands. +Operations +========== -The notable exception is the call instruction which has a variable -number of outputs and inputs. +TCG instructions or *ops* operate on TCG *variables*, both of which +are strongly typed. Each instruction has a fixed number of output +variable operands, input variable operands and constant operands. +Vector instructions have a field specifying the element size within +the vector. The notable exception is the call instruction which has +a variable number of outputs and inputs. In the textual form, output operands usually come first, followed by input operands, followed by constant operands. The output type is @@ -XXX,XX +XXX,XX @@ included in the instruction name. Constants are prefixed with a '$'. add_i32 t0, t1, t2 /* (t0 <- t1 + t2) */ +Variables +========= -Assumptions ------------ +* ``TEMP_FIXED`` -Basic blocks -^^^^^^^^^^^^ + There is one TCG *fixed global* variable, ``cpu_env``, which is + live in all translation blocks, and holds a pointer to ``CPUArchState``. + This variable is held in a host cpu register at all times in all + translation blocks. -* Basic blocks end after branches (e.g. brcond_i32 instruction), - goto_tb and exit_tb instructions. +* ``TEMP_GLOBAL`` -* Basic blocks start after the end of a previous basic block, or at a - set_label instruction. + A TCG *global* is a variable which is live in all translation blocks, + and corresponds to memory location that is within ``CPUArchState``. + These may be specified as an offset from ``cpu_env``, in which case + they are called *direct globals*, or may be specified as an offset + from a direct global, in which case they are called *indirect globals*. + Even indirect globals should still reference memory within + ``CPUArchState``. All TCG globals are defined during + ``TCGCPUOps.initialize``, before any translation blocks are generated. -After the end of a basic block, the content of temporaries is -destroyed, but local temporaries and globals are preserved. +* ``TEMP_CONST`` -Floating point types -^^^^^^^^^^^^^^^^^^^^ + A TCG *constant* is a variable which is live throughout the entire + translation block, and contains a constant value. These variables + are allocated on demand during translation and are hashed so that + there is exactly one variable holding a given value. -* Floating point types are not supported yet +* ``TEMP_TB`` -Pointers -^^^^^^^^ + A TCG *translation block temporary* is a variable which is live + throughout the entire translation block, but dies on any exit. + These temporaries are allocated explicitly during translation. -* Depending on the TCG target, pointer size is 32 bit or 64 - bit. The type ``TCG_TYPE_PTR`` is an alias to ``TCG_TYPE_I32`` or - ``TCG_TYPE_I64``. +* ``TEMP_EBB`` + + A TCG *extended basic block temporary* is a variable which is live + throughout an extended basic block, but dies on any exit. + These temporaries are allocated explicitly during translation. + +Types +===== + +* ``TCG_TYPE_I32`` + + A 32-bit integer. + +* ``TCG_TYPE_I64`` + + A 64-bit integer. For 32-bit hosts, such variables are split into a pair + of variables with ``type=TCG_TYPE_I32`` and ``base_type=TCG_TYPE_I64``. + The ``temp_subindex`` for each indicates where it falls within the + host-endian representation. + +* ``TCG_TYPE_PTR`` + + An alias for ``TCG_TYPE_I32`` or ``TCG_TYPE_I64``, depending on the size + of a pointer for the host. + +* ``TCG_TYPE_REG`` + + An alias for ``TCG_TYPE_I32`` or ``TCG_TYPE_I64``, depending on the size + of the integer registers for the host. This may be larger + than ``TCG_TYPE_PTR`` depending on the host ABI. + +* ``TCG_TYPE_I128`` + + A 128-bit integer. For all hosts, such variables are split into a number + of variables with ``type=TCG_TYPE_REG`` and ``base_type=TCG_TYPE_I128``. + The ``temp_subindex`` for each indicates where it falls within the + host-endian representation. + +* ``TCG_TYPE_V64`` + + A 64-bit vector. This type is valid only if the TCG target + sets ``TCG_TARGET_HAS_v64``. + +* ``TCG_TYPE_V128`` + + A 128-bit vector. This type is valid only if the TCG target + sets ``TCG_TARGET_HAS_v128``. + +* ``TCG_TYPE_V256`` + + A 256-bit vector. This type is valid only if the TCG target + sets ``TCG_TARGET_HAS_v256``. Helpers -^^^^^^^ +======= -* Using the tcg_gen_helper_x_y it is possible to call any function - taking i32, i64 or pointer types. By default, before calling a helper, - all globals are stored at their canonical location and it is assumed - that the function can modify them. By default, the helper is allowed to - modify the CPU state or raise an exception. +Helpers are registered in a guest-specific ``helper.h``, +which is processed to generate ``tcg_gen_helper_*`` functions. +With these functions it is possible to call a function taking +i32, i64, i128 or pointer types. - This can be overridden using the following function modifiers: +By default, before calling a helper, all globals are stored at their +canonical location. By default, the helper is allowed to modify the +CPU state (including the state represented by tcg globals) +or may raise an exception. This default can be overridden using the +following function modifiers: - - ``TCG_CALL_NO_READ_GLOBALS`` means that the helper does not read globals, - either directly or via an exception. They will not be saved to their - canonical locations before calling the helper. +* ``TCG_CALL_NO_WRITE_GLOBALS`` - - ``TCG_CALL_NO_WRITE_GLOBALS`` means that the helper does not modify any globals. - They will only be saved to their canonical location before calling helpers, - but they won't be reloaded afterwards. + The helper does not modify any globals, but may read them. + Globals will be saved to their canonical location before calling helpers, + but need not be reloaded afterwards. - - ``TCG_CALL_NO_SIDE_EFFECTS`` means that the call to the function is removed if - the return value is not used. +* ``TCG_CALL_NO_READ_GLOBALS`` - Note that ``TCG_CALL_NO_READ_GLOBALS`` implies ``TCG_CALL_NO_WRITE_GLOBALS``. + The helper does not read globals, either directly or via an exception. + They will not be saved to their canonical locations before calling + the helper. This implies ``TCG_CALL_NO_WRITE_GLOBALS``. - On some TCG targets (e.g. x86), several calling conventions are - supported. +* ``TCG_CALL_NO_SIDE_EFFECTS`` -Branches -^^^^^^^^ - -* Use the instruction 'br' to jump to a label. + The call to the helper function may be removed if the return value is + not used. This means that it may not modify any CPU state nor may it + raise an exception. Code Optimizations ------------------- +================== When generating instructions, you can count on at least the following optimizations: @@ -XXX,XX +XXX,XX @@ Recommended coding rules for best performance often modified, e.g. the integer registers and the condition codes. TCG will be able to use host registers to store them. -- Avoid globals stored in fixed registers. They must be used only to - store the pointer to the CPU state and possibly to store a pointer - to a register window. - -- Use temporaries. Use local temporaries only when really needed, - e.g. when you need to use a value after a jump. Local temporaries - introduce a performance hit in the current TCG implementation: their - content is saved to memory at end of each basic block. - -- Free temporaries and local temporaries when they are no longer used - (tcg_temp_free). Since tcg_const_x() also creates a temporary, you - should free it after it is used. Freeing temporaries does not yield - a better generated code, but it reduces the memory usage of TCG and - the speed of the translation. +- Free temporaries when they are no longer used (``tcg_temp_free``). + Since ``tcg_const_x`` also creates a temporary, you should free it + after it is used. - Don't hesitate to use helpers for complicated or seldom used guest instructions. There is little performance advantage in using TCG to @@ -XXX,XX +XXX,XX @@ Recommended coding rules for best performance the instruction is mostly doing loads and stores, and in those cases inline TCG may still be faster for longer sequences. -- The hard limit on the number of TCG instructions you can generate - per guest instruction is set by ``MAX_OP_PER_INSTR`` in ``exec-all.h`` -- - you cannot exceed this without risking a buffer overrun. - - Use the 'discard' instruction if you know that TCG won't be able to prove that a given global is "dead" at a given program point. The x86 guest uses it to improve the condition codes optimisation. -- 2.34.1