[v2] hw, target: Prefer fast cpu_env() over slower CPU QOM cast macro

[PATCH v2 22/23] target/xtensa: Prefer fast cpu_env() over slower CPU QOM cast macro

Philippe Mathieu-Daudé posted 23 patches 10 months ago

Diff against v1 v3
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Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Eduardo Habkost <eduardo@habkost.net>, Stefano Stabellini <sstabellini@kernel.org>, Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul@xen.org>, Peter Maydell <peter.maydell@linaro.org>, "Cédric Le Goater" <clg@kaod.org>, Nicholas Piggin <npiggin@gmail.com>, "Frédéric Barrat" <fbarrat@linux.ibm.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, Laurent Vivier <laurent@vivier.eu>, Alexander Graf <agraf@csgraf.de>, Michael Rolnik <mrolnik@gmail.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Cameron Esfahani <dirty@apple.com>, Roman Bolshakov <rbolshakov@ddn.com>, Marcelo Tosatti <mtosatti@redhat.com>, David Woodhouse <dwmw2@infradead.org>, Reinoud Zandijk <reinoud@netbsd.org>, Sunil Muthuswamy <sunilmut@microsoft.com>, Song Gao <gaosong@loongson.cn>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Huacai Chen <chenhuacai@kernel.org>, Chris Wulff <crwulff@gmail.com>, Marek Vasut <marex@denx.de>, Stafford Horne <shorne@gmail.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Weiwei Li <liwei1518@gmail.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, Thomas Huth <thuth@redhat.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Max Filippov <jcmvbkbc@gmail.com>

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[PATCH v2 22/23] target/xtensa: Prefer fast cpu_env() over slower CPU QOM cast macro

Posted by Philippe Mathieu-Daudé 10 months ago

Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/xtensa/dbg_helper.c | 3 +--
 target/xtensa/exc_helper.c | 3 +--
 target/xtensa/gdbstub.c    | 6 ++----
 target/xtensa/helper.c     | 9 +++------
 target/xtensa/translate.c  | 3 +--
 5 files changed, 8 insertions(+), 16 deletions(-)

diff --git a/target/xtensa/dbg_helper.c b/target/xtensa/dbg_helper.c
index 497dafca71..5546c82ecd 100644
--- a/target/xtensa/dbg_helper.c
+++ b/target/xtensa/dbg_helper.c
@@ -66,8 +66,7 @@ void HELPER(wsr_ibreaka)(CPUXtensaState *env, uint32_t i, uint32_t v)
 
 bool xtensa_debug_check_breakpoint(CPUState *cs)
 {
-    XtensaCPU *cpu = XTENSA_CPU(cs);
-    CPUXtensaState *env = &cpu->env;
+    CPUXtensaState *env = cpu_env(cs);
     unsigned int i;
 
     if (xtensa_get_cintlevel(env) >= env->config->debug_level) {
diff --git a/target/xtensa/exc_helper.c b/target/xtensa/exc_helper.c
index 168419a505..0514c2c1f3 100644
--- a/target/xtensa/exc_helper.c
+++ b/target/xtensa/exc_helper.c
@@ -205,8 +205,7 @@ static void handle_interrupt(CPUXtensaState *env)
 /* Called from cpu_handle_interrupt with BQL held */
 void xtensa_cpu_do_interrupt(CPUState *cs)
 {
-    XtensaCPU *cpu = XTENSA_CPU(cs);
-    CPUXtensaState *env = &cpu->env;
+    CPUXtensaState *env = cpu_env(cs);
 
     if (cs->exception_index == EXC_IRQ) {
         qemu_log_mask(CPU_LOG_INT,
diff --git a/target/xtensa/gdbstub.c b/target/xtensa/gdbstub.c
index 4b3bfb7e59..4748fb6532 100644
--- a/target/xtensa/gdbstub.c
+++ b/target/xtensa/gdbstub.c
@@ -65,8 +65,7 @@ void xtensa_count_regs(const XtensaConfig *config,
 
 int xtensa_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
 {
-    XtensaCPU *cpu = XTENSA_CPU(cs);
-    CPUXtensaState *env = &cpu->env;
+    CPUXtensaState *env = cpu_env(cs);
     const XtensaGdbReg *reg = env->config->gdb_regmap.reg + n;
 #ifdef CONFIG_USER_ONLY
     int num_regs = env->config->gdb_regmap.num_core_regs;
@@ -120,8 +119,7 @@ int xtensa_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
 
 int xtensa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
 {
-    XtensaCPU *cpu = XTENSA_CPU(cs);
-    CPUXtensaState *env = &cpu->env;
+    CPUXtensaState *env = cpu_env(cs);
     uint32_t tmp;
     const XtensaGdbReg *reg = env->config->gdb_regmap.reg + n;
 #ifdef CONFIG_USER_ONLY
diff --git a/target/xtensa/helper.c b/target/xtensa/helper.c
index a9f8907083..ca214b948a 100644
--- a/target/xtensa/helper.c
+++ b/target/xtensa/helper.c
@@ -217,8 +217,7 @@ static uint32_t check_hw_breakpoints(CPUXtensaState *env)
 
 void xtensa_breakpoint_handler(CPUState *cs)
 {
-    XtensaCPU *cpu = XTENSA_CPU(cs);
-    CPUXtensaState *env = &cpu->env;
+    CPUXtensaState *env = cpu_env(cs);
 
     if (cs->watchpoint_hit) {
         if (cs->watchpoint_hit->flags & BP_CPU) {
@@ -266,8 +265,7 @@ bool xtensa_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
                          MMUAccessType access_type, int mmu_idx,
                          bool probe, uintptr_t retaddr)
 {
-    XtensaCPU *cpu = XTENSA_CPU(cs);
-    CPUXtensaState *env = &cpu->env;
+    CPUXtensaState *env = cpu_env(cs);
     uint32_t paddr;
     uint32_t page_size;
     unsigned access;
@@ -297,8 +295,7 @@ void xtensa_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, vaddr addr,
                                       int mmu_idx, MemTxAttrs attrs,
                                       MemTxResult response, uintptr_t retaddr)
 {
-    XtensaCPU *cpu = XTENSA_CPU(cs);
-    CPUXtensaState *env = &cpu->env;
+    CPUXtensaState *env = cpu_env(cs);
 
     cpu_restore_state(cs, retaddr);
     HELPER(exception_cause_vaddr)(env, env->pc,
diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
index 87947236ca..426dcb6169 100644
--- a/target/xtensa/translate.c
+++ b/target/xtensa/translate.c
@@ -1248,8 +1248,7 @@ void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb, int *max_insns,
 
 void xtensa_cpu_dump_state(CPUState *cs, FILE *f, int flags)
 {
-    XtensaCPU *cpu = XTENSA_CPU(cs);
-    CPUXtensaState *env = &cpu->env;
+    CPUXtensaState *env = cpu_env(cs);
     xtensa_isa isa = env->config->isa;
     int i, j;
 
-- 
2.41.0

Re: [PATCH v2 22/23] target/xtensa: Prefer fast cpu_env() over slower CPU QOM cast macro

Posted by Richard Henderson 10 months ago

On 1/27/24 08:04, Philippe Mathieu-Daudé wrote:
> Mechanical patch produced running the command documented
> in scripts/coccinelle/cpu_env.cocci_template header.
> 
> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org>
> ---
>   target/xtensa/dbg_helper.c | 3 +--
>   target/xtensa/exc_helper.c | 3 +--
>   target/xtensa/gdbstub.c    | 6 ++----
>   target/xtensa/helper.c     | 9 +++------
>   target/xtensa/translate.c  | 3 +--
>   5 files changed, 8 insertions(+), 16 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~