From: Brian Cain <bcain@quicinc.com>
Some header includes are modified here: these are uniquely required for
basic system emulation functionality and had not been required for linux-user.
Acked-by: Markus Armbruster <armbru@redhat.com>
Co-authored-by: Mike Lambert <mlambert@quicinc.com>
Co-authored-by: Sid Manning <sidneym@quicinc.com>
Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>
---
MAINTAINERS | 2 +
qapi/machine.json | 4 +-
include/hw/hexagon/hexagon.h | 150 ++++++++++++++++++++
target/hexagon/cpu.h | 1 +
hw/hexagon/machine_cfg_v66g_1024.h.inc | 63 +++++++++
hw/hexagon/hexagon_dsp.c | 183 +++++++++++++++++++++++++
system/qdev-monitor.c | 2 +-
target/hexagon/cpu.c | 1 +
target/hexagon/op_helper.c | 2 +-
target/hexagon/translate.c | 1 +
hw/Kconfig | 1 +
hw/hexagon/Kconfig | 5 +
hw/hexagon/meson.build | 5 +
hw/meson.build | 1 +
14 files changed, 418 insertions(+), 3 deletions(-)
create mode 100644 include/hw/hexagon/hexagon.h
create mode 100644 hw/hexagon/machine_cfg_v66g_1024.h.inc
create mode 100644 hw/hexagon/hexagon_dsp.c
create mode 100644 hw/hexagon/Kconfig
create mode 100644 hw/hexagon/meson.build
diff --git a/MAINTAINERS b/MAINTAINERS
index bf7695658a..efc237b27b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -229,6 +229,8 @@ Hexagon TCG CPUs
M: Brian Cain <brian.cain@oss.qualcomm.com>
S: Supported
F: target/hexagon/
+F: hw/hexagon/
+F: include/hw/hexagon/
X: target/hexagon/idef-parser/
X: target/hexagon/gen_idef_parser_funcs.py
F: linux-user/hexagon/
diff --git a/qapi/machine.json b/qapi/machine.json
index 038eab281c..67f1929a98 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -26,6 +26,8 @@
#
# @avr: since 5.1
#
+# @hexagon: since 10.2
+#
# @loongarch64: since 7.1
#
# .. note:: The resulting QMP strings can be appended to the
@@ -35,7 +37,7 @@
# Since: 3.0
##
{ 'enum' : 'SysEmuTarget',
- 'data' : [ 'aarch64', 'alpha', 'arm', 'avr', 'hppa', 'i386',
+ 'data' : [ 'aarch64', 'alpha', 'arm', 'avr', 'hexagon', 'hppa', 'i386',
'loongarch64', 'm68k', 'microblaze', 'microblazeel', 'mips', 'mips64',
'mips64el', 'mipsel', 'or1k', 'ppc',
'ppc64', 'riscv32', 'riscv64', 'rx', 's390x', 'sh4',
diff --git a/include/hw/hexagon/hexagon.h b/include/hw/hexagon/hexagon.h
new file mode 100644
index 0000000000..eb0c20276f
--- /dev/null
+++ b/include/hw/hexagon/hexagon.h
@@ -0,0 +1,150 @@
+/*
+ * Hexagon Baseboard System emulation.
+ *
+ * Copyright (c) 2020-2024 Qualcomm Innovation Center, Inc. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+
+#ifndef HW_HEXAGON_H
+#define HW_HEXAGON_H
+
+#include "system/memory.h"
+
+struct hexagon_board_boot_info {
+ uint64_t ram_size;
+ const char *kernel_filename;
+ uint32_t kernel_elf_flags;
+};
+
+typedef enum {
+ unknown_rev = 0,
+ v66_rev = 0xa666,
+ v67_rev = 0x2667,
+ v68_rev = 0x8d68,
+ v69_rev = 0x8c69,
+ v71_rev = 0x8c71,
+ v73_rev = 0x8c73,
+ v73m_rev = 0xcc73,
+} Rev_t;
+#define HEXAGON_LATEST_REV v73
+#define HEXAGON_LATEST_REV_UPPER V73
+
+/*
+ * Config table address bases represent bits [35:16].
+ */
+#define HEXAGON_CFG_ADDR_BASE(addr) (((addr) >> 16) & 0x0fffff)
+
+#define HEXAGON_CFGSPACE_ENTRIES (128)
+
+typedef union {
+ struct {
+ /* Base address of L2TCM space */
+ uint32_t l2tcm_base;
+ uint32_t reserved0;
+ /* Base address of subsystem space */
+ uint32_t subsystem_base;
+ /* Base address of ETM space */
+ uint32_t etm_base;
+ /* Base address of L2 configuration space */
+ uint32_t l2cfg_base;
+ uint32_t reserved1;
+ /* Base address of L1S */
+ uint32_t l1s0_base;
+ /* Base address of AXI2 */
+ uint32_t axi2_lowaddr;
+ /* Base address of streamer base */
+ uint32_t streamer_base;
+ uint32_t reserved2;
+ /* Base address of fast L2VIC */
+ uint32_t fastl2vic_base;
+ /* Number of entries in JTLB */
+ uint32_t jtlb_size_entries;
+ /* Coprocessor type */
+ uint32_t coproc_present;
+ /* Number of extension execution contexts available */
+ uint32_t ext_contexts;
+ /* Base address of Hexagon Vector Tightly Coupled Memory (VTCM) */
+ uint32_t vtcm_base;
+ /* Size of VTCM (in KB) */
+ uint32_t vtcm_size_kb;
+ /* L2 tag size */
+ uint32_t l2tag_size;
+ /* Amount of physical L2 memory in released version */
+ uint32_t l2ecomem_size;
+ /* Hardware threads available on the core */
+ uint32_t thread_enable_mask;
+ /* Base address of the ECC registers */
+ uint32_t eccreg_base;
+ /* L2 line size */
+ uint32_t l2line_size;
+ /* Small Core processor (also implies audio extension) */
+ uint32_t tiny_core;
+ /* Size of L2TCM */
+ uint32_t l2itcm_size;
+ /* Base address of L2-ITCM */
+ uint32_t l2itcm_base;
+ uint32_t reserved3;
+ /* DTM is present */
+ uint32_t dtm_present;
+ /* Version of the DMA */
+ uint32_t dma_version;
+ /* Native HVX vector length in log of bytes */
+ uint32_t hvx_vec_log_length;
+ /* Core ID of the multi-core */
+ uint32_t core_id;
+ /* Number of multi-core cores */
+ uint32_t core_count;
+ uint32_t coproc2_reg0;
+ uint32_t coproc2_reg1;
+ /* Supported HVX vector length */
+ uint32_t v2x_mode;
+ uint32_t coproc2_reg2;
+ uint32_t coproc2_reg3;
+ uint32_t coproc2_reg4;
+ uint32_t coproc2_reg5;
+ uint32_t coproc2_reg6;
+ uint32_t coproc2_reg7;
+ /* Voltage droop mitigation technique parameter */
+ uint32_t acd_preset;
+ /* Voltage droop mitigation technique parameter */
+ uint32_t mnd_preset;
+ /* L1 data cache size (in KB) */
+ uint32_t l1d_size_kb;
+ /* L1 instruction cache size in (KB) */
+ uint32_t l1i_size_kb;
+ /* L1 data cache write policy: see HexagonL1WritePolicy */
+ uint32_t l1d_write_policy;
+ /* VTCM bank width */
+ uint32_t vtcm_bank_width;
+ uint32_t reserved4;
+ uint32_t reserved5;
+ uint32_t reserved6;
+ uint32_t coproc2_cvt_mpy_size;
+ uint32_t consistency_domain;
+ uint32_t capacity_domain;
+ uint32_t axi3_lowaddr;
+ uint32_t coproc2_int8_subcolumns;
+ uint32_t corecfg_present;
+ uint32_t coproc2_fp16_acc_exp;
+ uint32_t AXIM2_secondary_base;
+ };
+ uint32_t raw[HEXAGON_CFGSPACE_ENTRIES];
+} hexagon_config_table;
+
+typedef struct {
+ /* Base address of config table */
+ uint32_t cfgbase;
+ /* Size of L2 TCM */
+ uint32_t l2tcm_size;
+ /* Base address of L2VIC */
+ uint32_t l2vic_base;
+ /* Size of L2VIC region */
+ uint32_t l2vic_size;
+ /* QTimer csr base */
+ uint32_t csr_base;
+ uint32_t qtmr_region;
+ hexagon_config_table cfgtable;
+} hexagon_machine_config;
+
+#endif
diff --git a/target/hexagon/cpu.h b/target/hexagon/cpu.h
index 89c634a09c..86fbe30dbb 100644
--- a/target/hexagon/cpu.h
+++ b/target/hexagon/cpu.h
@@ -196,6 +196,7 @@ struct ArchCPU {
#ifndef CONFIG_USER_ONLY
uint32_t num_tlbs;
uint32_t l2vic_base_addr;
+ uint32_t hvx_contexts;
uint32_t boot_addr;
struct HexagonGlobalRegState *globalregs;
#endif
diff --git a/hw/hexagon/machine_cfg_v66g_1024.h.inc b/hw/hexagon/machine_cfg_v66g_1024.h.inc
new file mode 100644
index 0000000000..8f2a593bb8
--- /dev/null
+++ b/hw/hexagon/machine_cfg_v66g_1024.h.inc
@@ -0,0 +1,63 @@
+
+static hexagon_machine_config v66g_1024 = {
+ .cfgbase = 0xd8180000,
+ .l2tcm_size = 0x00000000,
+ .l2vic_base = 0xfc910000,
+ .l2vic_size = 0x00001000,
+ .csr_base = 0xfc900000,
+ .qtmr_region = 0xfc921000,
+ .cfgtable = {
+ .l2tcm_base = 0x0000d800,
+ .reserved0 = 0x0000d400,
+ .subsystem_base = 0x0000fc90,
+ .etm_base = 0x0000d805,
+ .l2cfg_base = 0x0000d81a,
+ .reserved1 = 0x00000000,
+ .l1s0_base = 0x0000d820,
+ .axi2_lowaddr = 0x00003000,
+ .streamer_base = 0x00000000,
+ .reserved2 = 0x0000d819,
+ .fastl2vic_base = 0x0000d81e,
+ .jtlb_size_entries = 0x00000080,
+ .coproc_present = 0x00000001,
+ .ext_contexts = 0x00000004,
+ .vtcm_base = 0x0000d820,
+ .vtcm_size_kb = 0x00000100,
+ .l2tag_size = 0x00000400,
+ .l2ecomem_size = 0x00000400,
+ .thread_enable_mask = 0x0000000f,
+ .eccreg_base = 0x0000d81f,
+ .l2line_size = 0x00000080,
+ .tiny_core = 0x00000000,
+ .l2itcm_size = 0x00000000,
+ .l2itcm_base = 0x0000d820,
+ .reserved3 = 0x00000000,
+ .dtm_present = 0x00000000,
+ .dma_version = 0x00000000,
+ .hvx_vec_log_length = 0x00000080,
+ .core_id = 0x00000000,
+ .core_count = 0x00000000,
+ .coproc2_reg0 = 0x00000000,
+ .coproc2_reg1 = 0x00000000,
+ .v2x_mode = 0x00000000,
+ .coproc2_reg2 = 0x00000000,
+ .coproc2_reg3 = 0x00000000,
+ .coproc2_reg4 = 0x00000000,
+ .coproc2_reg5 = 0x00000000,
+ .coproc2_reg6 = 0x00000000,
+ .coproc2_reg7 = 0x00000000,
+ .acd_preset = 0x00000000,
+ .mnd_preset = 0x00000000,
+ .l1d_size_kb = 0x00000000,
+ .l1i_size_kb = 0x00000000,
+ .l1d_write_policy = 0x00000000,
+ .vtcm_bank_width = 0x00000000,
+ .reserved3 = 0x00000000,
+ .reserved4 = 0x00000000,
+ .reserved5 = 0x00000000,
+ .coproc2_cvt_mpy_size = 0x00000000,
+ .consistency_domain = 0x00000000,
+ .capacity_domain = 0x00000000,
+ .axi3_lowaddr = 0x00000000,
+ },
+};
diff --git a/hw/hexagon/hexagon_dsp.c b/hw/hexagon/hexagon_dsp.c
new file mode 100644
index 0000000000..d491a21a76
--- /dev/null
+++ b/hw/hexagon/hexagon_dsp.c
@@ -0,0 +1,183 @@
+/*
+ * Hexagon DSP Subsystem emulation. This represents a generic DSP
+ * subsystem with few peripherals, like the Compute DSP.
+ *
+ * Copyright (c) 2020-2024 Qualcomm Innovation Center, Inc. All Rights Reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "system/address-spaces.h"
+#include "hw/hw.h"
+#include "hw/boards.h"
+#include "hw/qdev-properties.h"
+#include "hw/hexagon/hexagon.h"
+#include "hw/hexagon/hexagon_globalreg.h"
+#include "hw/loader.h"
+#include "qapi/error.h"
+#include "qemu/error-report.h"
+#include "qemu/log.h"
+#include "elf.h"
+#include "cpu.h"
+#include "include/migration/cpu.h"
+#include "include/system/system.h"
+#include "target/hexagon/internal.h"
+#include "system/reset.h"
+
+#include "machine_cfg_v66g_1024.h.inc"
+
+static void hex_symbol_callback(const char *st_name, int st_info,
+ uint64_t st_value, uint64_t st_size)
+{
+}
+
+/* Board init. */
+static struct hexagon_board_boot_info hexagon_binfo;
+
+static void hexagon_load_kernel(HexagonCPU *cpu)
+{
+ uint64_t pentry;
+ long kernel_size;
+
+ kernel_size = load_elf_ram_sym(hexagon_binfo.kernel_filename, NULL, NULL,
+ NULL, &pentry, NULL, NULL,
+ &hexagon_binfo.kernel_elf_flags, 0, EM_HEXAGON, 0, 0,
+ &address_space_memory, false, hex_symbol_callback);
+
+ if (kernel_size <= 0) {
+ error_report("no kernel file '%s'",
+ hexagon_binfo.kernel_filename);
+ exit(1);
+ }
+
+ qdev_prop_set_uint32(DEVICE(cpu), "exec-start-addr", pentry);
+}
+
+static void hexagon_init_bootstrap(MachineState *machine, HexagonCPU *cpu)
+{
+ if (machine->kernel_filename) {
+ hexagon_load_kernel(cpu);
+ }
+}
+
+static void do_cpu_reset(void *opaque)
+{
+ HexagonCPU *cpu = opaque;
+ CPUState *cs = CPU(cpu);
+ cpu_reset(cs);
+}
+
+static void hexagon_common_init(MachineState *machine, Rev_t rev,
+ hexagon_machine_config *m_cfg)
+{
+ memset(&hexagon_binfo, 0, sizeof(hexagon_binfo));
+ if (machine->kernel_filename) {
+ hexagon_binfo.ram_size = machine->ram_size;
+ hexagon_binfo.kernel_filename = machine->kernel_filename;
+ }
+
+ machine->enable_graphics = 0;
+
+ MemoryRegion *address_space = get_system_memory();
+
+ MemoryRegion *sram = g_new(MemoryRegion, 1);
+ memory_region_init_ram(sram, NULL, "ddr.ram",
+ machine->ram_size, &error_fatal);
+ memory_region_add_subregion(address_space, 0x0, sram);
+
+ Error **errp = NULL;
+
+ DeviceState *glob_regs_dev = qdev_new(TYPE_HEXAGON_GLOBALREG);
+ qdev_prop_set_uint64(glob_regs_dev, "config-table-addr", m_cfg->cfgbase);
+ qdev_prop_set_uint32(glob_regs_dev, "qtimer-base-addr", m_cfg->qtmr_region);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(glob_regs_dev), errp);
+
+ for (int i = 0; i < machine->smp.cpus; i++) {
+ HexagonCPU *cpu = HEXAGON_CPU(object_new(machine->cpu_type));
+ qemu_register_reset(do_cpu_reset, cpu);
+
+ /*
+ * CPU #0 is the only CPU running at boot, others must be
+ * explicitly enabled via start instruction.
+ */
+ qdev_prop_set_bit(DEVICE(cpu), "start-powered-off", (i != 0));
+ qdev_prop_set_uint32(DEVICE(cpu), "l2vic-base-addr", m_cfg->l2vic_base);
+ qdev_prop_set_uint32(DEVICE(cpu), "config-table-addr", m_cfg->cfgbase);
+ qdev_prop_set_uint32(DEVICE(cpu), "hvx-contexts",
+ m_cfg->cfgtable.ext_contexts);
+ qdev_prop_set_uint32(DEVICE(cpu), "jtlb-entries",
+ m_cfg->cfgtable.jtlb_size_entries);
+
+
+ if (i == 0) {
+ hexagon_init_bootstrap(machine, cpu);
+ if (!qdev_realize_and_unref(DEVICE(cpu), NULL, errp)) {
+ return;
+ }
+ DeviceState *l2vic_dev;
+ l2vic_dev = sysbus_create_varargs("l2vic", m_cfg->l2vic_base,
+ /* IRQ#, Evnt#,CauseCode */
+ qdev_get_gpio_in(DEVICE(cpu), 0),
+ qdev_get_gpio_in(DEVICE(cpu), 1),
+ qdev_get_gpio_in(DEVICE(cpu), 2),
+ qdev_get_gpio_in(DEVICE(cpu), 3),
+ qdev_get_gpio_in(DEVICE(cpu), 4),
+ qdev_get_gpio_in(DEVICE(cpu), 5),
+ qdev_get_gpio_in(DEVICE(cpu), 6),
+ qdev_get_gpio_in(DEVICE(cpu), 7),
+ NULL);
+ sysbus_mmio_map(SYS_BUS_DEVICE(l2vic_dev), 1,
+ m_cfg->cfgtable.fastl2vic_base << 16);
+ } else if (!qdev_realize_and_unref(DEVICE(cpu), NULL, errp)) {
+ return;
+ }
+
+ }
+}
+
+static void init_mc(MachineClass *mc)
+{
+ mc->block_default_type = IF_SD;
+ mc->default_ram_size = 4 * GiB;
+ mc->no_parallel = 1;
+ mc->no_floppy = 1;
+ mc->no_cdrom = 1;
+ mc->no_serial = 1;
+ mc->is_default = false;
+ mc->max_cpus = 8;
+}
+
+/* ----------------------------------------------------------------- */
+/* Core-specific configuration settings are defined below this line. */
+/* Config table values defined in machine_configs.h.inc */
+/* ----------------------------------------------------------------- */
+
+static void v66g_1024_config_init(MachineState *machine)
+{
+ hexagon_common_init(machine, v66_rev, &v66g_1024);
+}
+
+static void v66g_1024_init(ObjectClass *oc, const void *data)
+{
+ MachineClass *mc = MACHINE_CLASS(oc);
+
+ mc->desc = "Hexagon V66G_1024";
+ mc->init = v66g_1024_config_init;
+ init_mc(mc);
+ mc->is_default = true;
+ mc->default_cpu_type = TYPE_HEXAGON_CPU_V66;
+ mc->default_cpus = 4;
+}
+
+static const TypeInfo hexagon_machine_types[] = {
+ {
+ .name = MACHINE_TYPE_NAME("V66G_1024"),
+ .parent = TYPE_MACHINE,
+ .class_init = v66g_1024_init,
+ },
+};
+
+DEFINE_TYPES(hexagon_machine_types)
diff --git a/system/qdev-monitor.c b/system/qdev-monitor.c
index 2ac92d0a07..4acc2d3280 100644
--- a/system/qdev-monitor.c
+++ b/system/qdev-monitor.c
@@ -69,7 +69,7 @@ typedef struct QDevAlias
QEMU_ARCH_SPARC | \
QEMU_ARCH_XTENSA)
#define QEMU_ARCH_VIRTIO_CCW (QEMU_ARCH_S390X)
-#define QEMU_ARCH_VIRTIO_MMIO (QEMU_ARCH_M68K)
+#define QEMU_ARCH_VIRTIO_MMIO (QEMU_ARCH_M68K | QEMU_ARCH_HEXAGON)
/* Please keep this table sorted by typename. */
static const QDevAlias qdev_alias_table[] = {
diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c
index 256fdc177e..ba78a04bdc 100644
--- a/target/hexagon/cpu.c
+++ b/target/hexagon/cpu.c
@@ -69,6 +69,7 @@ static const Property hexagon_cpu_properties[] = {
DEFINE_PROP_UINT32("jtlb-entries", HexagonCPU, num_tlbs, MAX_TLB_ENTRIES),
DEFINE_PROP_UINT32("l2vic-base-addr", HexagonCPU, l2vic_base_addr,
0xffffffffULL),
+ DEFINE_PROP_UINT32("hvx-contexts", HexagonCPU, hvx_contexts, 0),
DEFINE_PROP_UINT32("exec-start-addr", HexagonCPU, boot_addr, 0xffffffffULL),
DEFINE_PROP_LINK("global-regs", HexagonCPU, globalregs,
TYPE_HEXAGON_GLOBALREG, HexagonGlobalRegState *),
diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c
index 1bc32769c6..fa893e480b 100644
--- a/target/hexagon/op_helper.c
+++ b/target/hexagon/op_helper.c
@@ -20,9 +20,9 @@
#include "accel/tcg/cpu-ldst.h"
#include "accel/tcg/probe.h"
#include "qemu/main-loop.h"
+#include "cpu.h"
#include "exec/helper-proto.h"
#include "fpu/softfloat.h"
-#include "cpu.h"
#include "exec/cpu-interrupt.h"
#include "internal.h"
#include "macros.h"
diff --git a/target/hexagon/translate.c b/target/hexagon/translate.c
index 38c2037c47..3e70fa29bc 100644
--- a/target/hexagon/translate.c
+++ b/target/hexagon/translate.c
@@ -32,6 +32,7 @@
#include "translate.h"
#include "genptr.h"
#include "printinsn.h"
+#include "exec/target_page.h"
#define HELPER_H "helper.h"
#include "exec/helper-info.c.inc"
diff --git a/hw/Kconfig b/hw/Kconfig
index 9e6c789ae7..1c3684055a 100644
--- a/hw/Kconfig
+++ b/hw/Kconfig
@@ -52,6 +52,7 @@ source arm/Kconfig
source cpu/Kconfig
source alpha/Kconfig
source avr/Kconfig
+source hexagon/Kconfig
source hppa/Kconfig
source i386/Kconfig
source loongarch/Kconfig
diff --git a/hw/hexagon/Kconfig b/hw/hexagon/Kconfig
new file mode 100644
index 0000000000..7b9577f68f
--- /dev/null
+++ b/hw/hexagon/Kconfig
@@ -0,0 +1,5 @@
+config HEX_DSP
+ bool
+ default y
+ depends on HEXAGON && TCG
+ imply PTIMER
diff --git a/hw/hexagon/meson.build b/hw/hexagon/meson.build
new file mode 100644
index 0000000000..11e71a67d5
--- /dev/null
+++ b/hw/hexagon/meson.build
@@ -0,0 +1,5 @@
+hexagon_ss = ss.source_set()
+hexagon_ss.add(when: 'CONFIG_HEX_DSP', if_true: files('hexagon_dsp.c', 'hexagon_globalreg.c'))
+
+hw_arch += {'hexagon': hexagon_ss}
+
diff --git a/hw/meson.build b/hw/meson.build
index 791ce21ab4..7530742e69 100644
--- a/hw/meson.build
+++ b/hw/meson.build
@@ -50,6 +50,7 @@ subdir('fsi')
subdir('alpha')
subdir('arm')
subdir('avr')
+subdir('hexagon')
subdir('hppa')
subdir('i386')
subdir('loongarch')
--
2.34.1© 2016 - 2025 Red Hat, Inc.