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-rw-r--r--target/mips/cpu.c523
1 files changed, 471 insertions, 52 deletions
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index 497706b669..8d8f690a53 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -19,59 +19,145 @@
*/
#include "qemu/osdep.h"
+#include "qemu/cutils.h"
+#include "qemu/qemu-print.h"
+#include "qemu/error-report.h"
#include "qapi/error.h"
#include "cpu.h"
#include "internal.h"
#include "kvm_mips.h"
-#include "qemu-common.h"
+#include "qemu/module.h"
#include "sysemu/kvm.h"
+#include "sysemu/qtest.h"
#include "exec/exec-all.h"
+#include "hw/qdev-properties.h"
+#include "hw/qdev-clock.h"
+#include "semihosting/semihost.h"
+#include "fpu_helper.h"
+
+const char regnames[32][3] = {
+ "r0", "at", "v0", "v1", "a0", "a1", "a2", "a3",
+ "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
+ "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
+ "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra",
+};
+static void fpu_dump_fpr(fpr_t *fpr, FILE *f, bool is_fpu64)
+{
+ if (is_fpu64) {
+ qemu_fprintf(f, "w:%08x d:%016" PRIx64 " fd:%13g fs:%13g psu: %13g\n",
+ fpr->w[FP_ENDIAN_IDX], fpr->d,
+ (double)fpr->fd,
+ (double)fpr->fs[FP_ENDIAN_IDX],
+ (double)fpr->fs[!FP_ENDIAN_IDX]);
+ } else {
+ fpr_t tmp;
+
+ tmp.w[FP_ENDIAN_IDX] = fpr->w[FP_ENDIAN_IDX];
+ tmp.w[!FP_ENDIAN_IDX] = (fpr + 1)->w[FP_ENDIAN_IDX];
+ qemu_fprintf(f, "w:%08x d:%016" PRIx64 " fd:%13g fs:%13g psu:%13g\n",
+ tmp.w[FP_ENDIAN_IDX], tmp.d,
+ (double)tmp.fd,
+ (double)tmp.fs[FP_ENDIAN_IDX],
+ (double)tmp.fs[!FP_ENDIAN_IDX]);
+ }
+}
-static void mips_cpu_set_pc(CPUState *cs, vaddr value)
+static void fpu_dump_state(CPUMIPSState *env, FILE *f, int flags)
{
- MIPSCPU *cpu = MIPS_CPU(cs);
- CPUMIPSState *env = &cpu->env;
+ int i;
+ bool is_fpu64 = !!(env->hflags & MIPS_HFLAG_F64);
+
+ qemu_fprintf(f,
+ "CP1 FCR0 0x%08x FCR31 0x%08x SR.FR %d fp_status 0x%02x\n",
+ env->active_fpu.fcr0, env->active_fpu.fcr31, is_fpu64,
+ get_float_exception_flags(&env->active_fpu.fp_status));
+ for (i = 0; i < 32; (is_fpu64) ? i++ : (i += 2)) {
+ qemu_fprintf(f, "%3s: ", fregnames[i]);
+ fpu_dump_fpr(&env->active_fpu.fpr[i], f, is_fpu64);
+ }
+}
- env->active_tc.PC = value & ~(target_ulong)1;
- if (value & 1) {
- env->hflags |= MIPS_HFLAG_M16;
- } else {
- env->hflags &= ~(MIPS_HFLAG_M16);
+static void mips_cpu_dump_state(CPUState *cs, FILE *f, int flags)
+{
+ CPUMIPSState *env = cpu_env(cs);
+ int i;
+
+ qemu_fprintf(f, "pc=0x" TARGET_FMT_lx " HI=0x" TARGET_FMT_lx
+ " LO=0x" TARGET_FMT_lx " ds %04x "
+ TARGET_FMT_lx " " TARGET_FMT_ld "\n",
+ env->active_tc.PC, env->active_tc.HI[0], env->active_tc.LO[0],
+ env->hflags, env->btarget, env->bcond);
+ for (i = 0; i < 32; i++) {
+ if ((i & 3) == 0) {
+ qemu_fprintf(f, "GPR%02d:", i);
+ }
+ qemu_fprintf(f, " %s " TARGET_FMT_lx,
+ regnames[i], env->active_tc.gpr[i]);
+ if ((i & 3) == 3) {
+ qemu_fprintf(f, "\n");
+ }
+ }
+
+ qemu_fprintf(f, "CP0 Status 0x%08x Cause 0x%08x EPC 0x"
+ TARGET_FMT_lx "\n",
+ env->CP0_Status, env->CP0_Cause, env->CP0_EPC);
+ qemu_fprintf(f, " Config0 0x%08x Config1 0x%08x LLAddr 0x%016"
+ PRIx64 "\n",
+ env->CP0_Config0, env->CP0_Config1, env->CP0_LLAddr);
+ qemu_fprintf(f, " Config2 0x%08x Config3 0x%08x\n",
+ env->CP0_Config2, env->CP0_Config3);
+ qemu_fprintf(f, " Config4 0x%08x Config5 0x%08x\n",
+ env->CP0_Config4, env->CP0_Config5);
+ if ((flags & CPU_DUMP_FPU) && (env->hflags & MIPS_HFLAG_FPU)) {
+ fpu_dump_state(env, f, flags);
}
}
-static void mips_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
+void cpu_set_exception_base(int vp_index, target_ulong address)
+{
+ MIPSCPU *vp = MIPS_CPU(qemu_get_cpu(vp_index));
+ vp->env.exception_base = address;
+}
+
+static void mips_cpu_set_pc(CPUState *cs, vaddr value)
+{
+ mips_env_set_pc(cpu_env(cs), value);
+}
+
+static vaddr mips_cpu_get_pc(CPUState *cs)
{
MIPSCPU *cpu = MIPS_CPU(cs);
- CPUMIPSState *env = &cpu->env;
- env->active_tc.PC = tb->pc;
- env->hflags &= ~MIPS_HFLAG_BMASK;
- env->hflags |= tb->flags & MIPS_HFLAG_BMASK;
+ return cpu->env.active_tc.PC;
}
static bool mips_cpu_has_work(CPUState *cs)
{
- MIPSCPU *cpu = MIPS_CPU(cs);
- CPUMIPSState *env = &cpu->env;
+ CPUMIPSState *env = cpu_env(cs);
bool has_work = false;
- /* Prior to MIPS Release 6 it is implementation dependent if non-enabled
- interrupts wake-up the CPU, however most of the implementations only
- check for interrupts that can be taken. */
+ /*
+ * Prior to MIPS Release 6 it is implementation dependent if non-enabled
+ * interrupts wake-up the CPU, however most of the implementations only
+ * check for interrupts that can be taken. For pre-release 6 CPUs,
+ * check for CP0 Config7 'Wait IE ignore' bit.
+ */
if ((cs->interrupt_request & CPU_INTERRUPT_HARD) &&
cpu_mips_hw_interrupts_pending(env)) {
if (cpu_mips_hw_interrupts_enabled(env) ||
- (env->insn_flags & ISA_MIPS32R6)) {
+ (env->CP0_Config7 & (1 << CP0C7_WII)) ||
+ (env->insn_flags & ISA_MIPS_R6)) {
has_work = true;
}
}
/* MIPS-MT has the ability to halt the CPU. */
- if (env->CP0_Config3 & (1 << CP0C3_MT)) {
- /* The QEMU model will issue an _WAKE request whenever the CPUs
- should be woken up. */
+ if (ase_mt_available(env)) {
+ /*
+ * The QEMU model will issue an _WAKE request whenever the CPUs
+ * should be woken up.
+ */
if (cs->interrupt_request & CPU_INTERRUPT_WAKE) {
has_work = true;
}
@@ -92,18 +178,247 @@ static bool mips_cpu_has_work(CPUState *cs)
return has_work;
}
-/* CPUClass::reset() */
-static void mips_cpu_reset(CPUState *s)
+static int mips_cpu_mmu_index(CPUState *cs, bool ifunc)
+{
+ return mips_env_mmu_index(cpu_env(cs));
+}
+
+#include "cpu-defs.c.inc"
+
+static void mips_cpu_reset_hold(Object *obj)
{
- MIPSCPU *cpu = MIPS_CPU(s);
- MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(cpu);
+ CPUState *cs = CPU(obj);
+ MIPSCPU *cpu = MIPS_CPU(cs);
+ MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(obj);
CPUMIPSState *env = &cpu->env;
- mcc->parent_reset(s);
+ if (mcc->parent_phases.hold) {
+ mcc->parent_phases.hold(obj);
+ }
memset(env, 0, offsetof(CPUMIPSState, end_reset_fields));
- cpu_state_reset(env);
+ /* Reset registers to their default values */
+ env->CP0_PRid = env->cpu_model->CP0_PRid;
+ env->CP0_Config0 = env->cpu_model->CP0_Config0;
+#if TARGET_BIG_ENDIAN
+ env->CP0_Config0 |= (1 << CP0C0_BE);
+#endif
+ env->CP0_Config1 = env->cpu_model->CP0_Config1;
+ env->CP0_Config2 = env->cpu_model->CP0_Config2;
+ env->CP0_Config3 = env->cpu_model->CP0_Config3;
+ env->CP0_Config4 = env->cpu_model->CP0_Config4;
+ env->CP0_Config4_rw_bitmask = env->cpu_model->CP0_Config4_rw_bitmask;
+ env->CP0_Config5 = env->cpu_model->CP0_Config5;
+ env->CP0_Config5_rw_bitmask = env->cpu_model->CP0_Config5_rw_bitmask;
+ env->CP0_Config6 = env->cpu_model->CP0_Config6;
+ env->CP0_Config6_rw_bitmask = env->cpu_model->CP0_Config6_rw_bitmask;
+ env->CP0_Config7 = env->cpu_model->CP0_Config7;
+ env->CP0_Config7_rw_bitmask = env->cpu_model->CP0_Config7_rw_bitmask;
+ env->CP0_LLAddr_rw_bitmask = env->cpu_model->CP0_LLAddr_rw_bitmask
+ << env->cpu_model->CP0_LLAddr_shift;
+ env->CP0_LLAddr_shift = env->cpu_model->CP0_LLAddr_shift;
+ env->SYNCI_Step = env->cpu_model->SYNCI_Step;
+ env->CCRes = env->cpu_model->CCRes;
+ env->CP0_Status_rw_bitmask = env->cpu_model->CP0_Status_rw_bitmask;
+ env->CP0_TCStatus_rw_bitmask = env->cpu_model->CP0_TCStatus_rw_bitmask;
+ env->CP0_SRSCtl = env->cpu_model->CP0_SRSCtl;
+ env->current_tc = 0;
+ env->SEGBITS = env->cpu_model->SEGBITS;
+ env->SEGMask = (target_ulong)((1ULL << env->cpu_model->SEGBITS) - 1);
+#if defined(TARGET_MIPS64)
+ if (env->cpu_model->insn_flags & ISA_MIPS3) {
+ env->SEGMask |= 3ULL << 62;
+ }
+#endif
+ env->PABITS = env->cpu_model->PABITS;
+ env->CP0_SRSConf0_rw_bitmask = env->cpu_model->CP0_SRSConf0_rw_bitmask;
+ env->CP0_SRSConf0 = env->cpu_model->CP0_SRSConf0;
+ env->CP0_SRSConf1_rw_bitmask = env->cpu_model->CP0_SRSConf1_rw_bitmask;
+ env->CP0_SRSConf1 = env->cpu_model->CP0_SRSConf1;
+ env->CP0_SRSConf2_rw_bitmask = env->cpu_model->CP0_SRSConf2_rw_bitmask;
+ env->CP0_SRSConf2 = env->cpu_model->CP0_SRSConf2;
+ env->CP0_SRSConf3_rw_bitmask = env->cpu_model->CP0_SRSConf3_rw_bitmask;
+ env->CP0_SRSConf3 = env->cpu_model->CP0_SRSConf3;
+ env->CP0_SRSConf4_rw_bitmask = env->cpu_model->CP0_SRSConf4_rw_bitmask;
+ env->CP0_SRSConf4 = env->cpu_model->CP0_SRSConf4;
+ env->CP0_PageGrain_rw_bitmask = env->cpu_model->CP0_PageGrain_rw_bitmask;
+ env->CP0_PageGrain = env->cpu_model->CP0_PageGrain;
+ env->CP0_EBaseWG_rw_bitmask = env->cpu_model->CP0_EBaseWG_rw_bitmask;
+ env->lcsr_cpucfg1 = env->cpu_model->lcsr_cpucfg1;
+ env->lcsr_cpucfg2 = env->cpu_model->lcsr_cpucfg2;
+ env->active_fpu.fcr0 = env->cpu_model->CP1_fcr0;
+ env->active_fpu.fcr31_rw_bitmask = env->cpu_model->CP1_fcr31_rw_bitmask;
+ env->active_fpu.fcr31 = env->cpu_model->CP1_fcr31;
+ env->msair = env->cpu_model->MSAIR;
+ env->insn_flags = env->cpu_model->insn_flags;
+
+#if defined(CONFIG_USER_ONLY)
+ env->CP0_Status = (MIPS_HFLAG_UM << CP0St_KSU);
+# ifdef TARGET_MIPS64
+ /* Enable 64-bit register mode. */
+ env->CP0_Status |= (1 << CP0St_PX);
+# endif
+# ifdef TARGET_ABI_MIPSN64
+ /* Enable 64-bit address mode. */
+ env->CP0_Status |= (1 << CP0St_UX);
+# endif
+ /*
+ * Enable access to the CPUNum, SYNCI_Step, CC, and CCRes RDHWR
+ * hardware registers.
+ */
+ env->CP0_HWREna |= 0x0000000F;
+ if (env->CP0_Config1 & (1 << CP0C1_FP)) {
+ env->CP0_Status |= (1 << CP0St_CU1);
+ }
+ if (env->CP0_Config3 & (1 << CP0C3_DSPP)) {
+ env->CP0_Status |= (1 << CP0St_MX);
+ }
+# if defined(TARGET_MIPS64)
+ /* For MIPS64, init FR bit to 1 if FPU unit is there and bit is writable. */
+ if ((env->CP0_Config1 & (1 << CP0C1_FP)) &&
+ (env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) {
+ env->CP0_Status |= (1 << CP0St_FR);
+ }
+# endif
+#else /* !CONFIG_USER_ONLY */
+ if (env->hflags & MIPS_HFLAG_BMASK) {
+ /*
+ * If the exception was raised from a delay slot,
+ * come back to the jump.
+ */
+ env->CP0_ErrorEPC = (env->active_tc.PC
+ - (env->hflags & MIPS_HFLAG_B16 ? 2 : 4));
+ } else {
+ env->CP0_ErrorEPC = env->active_tc.PC;
+ }
+ env->active_tc.PC = env->exception_base;
+ env->CP0_Random = env->tlb->nb_tlb - 1;
+ env->tlb->tlb_in_use = env->tlb->nb_tlb;
+ env->CP0_Wired = 0;
+ env->CP0_GlobalNumber = (cs->cpu_index & 0xFF) << CP0GN_VPId;
+ env->CP0_EBase = KSEG0_BASE | (cs->cpu_index & 0x3FF);
+ if (env->CP0_Config3 & (1 << CP0C3_CMGCR)) {
+ env->CP0_CMGCRBase = 0x1fbf8000 >> 4;
+ }
+ env->CP0_EntryHi_ASID_mask = (env->CP0_Config5 & (1 << CP0C5_MI)) ?
+ 0x0 : (env->CP0_Config4 & (1 << CP0C4_AE)) ? 0x3ff : 0xff;
+ env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL);
+ if (env->insn_flags & INSN_LOONGSON2F) {
+ /* Loongson-2F has those bits hardcoded to 1 */
+ env->CP0_Status |= (1 << CP0St_KX) | (1 << CP0St_SX) |
+ (1 << CP0St_UX);
+ }
+
+ /*
+ * Vectored interrupts not implemented, timer on int 7,
+ * no performance counters.
+ */
+ env->CP0_IntCtl = 0xe0000000;
+ {
+ int i;
+
+ for (i = 0; i < 7; i++) {
+ env->CP0_WatchLo[i] = 0;
+ env->CP0_WatchHi[i] = 1 << CP0WH_M;
+ }
+ env->CP0_WatchLo[7] = 0;
+ env->CP0_WatchHi[7] = 0;
+ }
+ /* Count register increments in debug mode, EJTAG version 1 */
+ env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER);
+
+ cpu_mips_store_count(env, 1);
+
+ if (ase_mt_available(env)) {
+ int i;
+
+ /* Only TC0 on VPE 0 starts as active. */
+ for (i = 0; i < ARRAY_SIZE(env->tcs); i++) {
+ env->tcs[i].CP0_TCBind = cs->cpu_index << CP0TCBd_CurVPE;
+ env->tcs[i].CP0_TCHalt = 1;
+ }
+ env->active_tc.CP0_TCHalt = 1;
+ cs->halted = 1;
+
+ if (cs->cpu_index == 0) {
+ /* VPE0 starts up enabled. */
+ env->mvp->CP0_MVPControl |= (1 << CP0MVPCo_EVP);
+ env->CP0_VPEConf0 |= (1 << CP0VPEC0_MVP) | (1 << CP0VPEC0_VPA);
+
+ /* TC0 starts up unhalted. */
+ cs->halted = 0;
+ env->active_tc.CP0_TCHalt = 0;
+ env->tcs[0].CP0_TCHalt = 0;
+ /* With thread 0 active. */
+ env->active_tc.CP0_TCStatus = (1 << CP0TCSt_A);
+ env->tcs[0].CP0_TCStatus = (1 << CP0TCSt_A);
+ }
+ }
+
+ /*
+ * Configure default legacy segmentation control. We use this regardless of
+ * whether segmentation control is presented to the guest.
+ */
+ /* KSeg3 (seg0 0xE0000000..0xFFFFFFFF) */
+ env->CP0_SegCtl0 = (CP0SC_AM_MK << CP0SC_AM);
+ /* KSeg2 (seg1 0xC0000000..0xDFFFFFFF) */
+ env->CP0_SegCtl0 |= ((CP0SC_AM_MSK << CP0SC_AM)) << 16;
+ /* KSeg1 (seg2 0xA0000000..0x9FFFFFFF) */
+ env->CP0_SegCtl1 = (0 << CP0SC_PA) | (CP0SC_AM_UK << CP0SC_AM) |
+ (2 << CP0SC_C);
+ /* KSeg0 (seg3 0x80000000..0x9FFFFFFF) */
+ env->CP0_SegCtl1 |= ((0 << CP0SC_PA) | (CP0SC_AM_UK << CP0SC_AM) |
+ (3 << CP0SC_C)) << 16;
+ /* USeg (seg4 0x40000000..0x7FFFFFFF) */
+ env->CP0_SegCtl2 = (2 << CP0SC_PA) | (CP0SC_AM_MUSK << CP0SC_AM) |
+ (1 << CP0SC_EU) | (2 << CP0SC_C);
+ /* USeg (seg5 0x00000000..0x3FFFFFFF) */
+ env->CP0_SegCtl2 |= ((0 << CP0SC_PA) | (CP0SC_AM_MUSK << CP0SC_AM) |
+ (1 << CP0SC_EU) | (2 << CP0SC_C)) << 16;
+ /* XKPhys (note, SegCtl2.XR = 0, so XAM won't be used) */
+ env->CP0_SegCtl1 |= (CP0SC_AM_UK << CP0SC1_XAM);
+#endif /* !CONFIG_USER_ONLY */
+ if ((env->insn_flags & ISA_MIPS_R6) &&
+ (env->active_fpu.fcr0 & (1 << FCR0_F64))) {
+ /* Status.FR = 0 mode in 64-bit FPU not allowed in R6 */
+ env->CP0_Status |= (1 << CP0St_FR);
+ }
+
+ if (env->insn_flags & ISA_MIPS_R6) {
+ /* PTW = 1 */
+ env->CP0_PWSize = 0x40;
+ /* GDI = 12 */
+ /* UDI = 12 */
+ /* MDI = 12 */
+ /* PRI = 12 */
+ /* PTEI = 2 */
+ env->CP0_PWField = 0x0C30C302;
+ } else {
+ /* GDI = 0 */
+ /* UDI = 0 */
+ /* MDI = 0 */
+ /* PRI = 0 */
+ /* PTEI = 2 */
+ env->CP0_PWField = 0x02;
+ }
+
+ if (env->CP0_Config3 & (1 << CP0C3_ISA) & (1 << (CP0C3_ISA + 1))) {
+ /* microMIPS on reset when Config3.ISA is 3 */
+ env->hflags |= MIPS_HFLAG_M16;
+ }
+
+ msa_reset(env);
+
+ compute_hflags(env);
+ restore_fp_status(env);
+ restore_pamask(env);
+ cs->exception_index = EXCP_NONE;
+
+ if (semihosting_get_argc()) {
+ /* UHI interface can be used to obtain argc and argv */
+ env->active_tc.gpr[4] = -1;
+ }
#ifndef CONFIG_USER_ONLY
if (kvm_enabled()) {
@@ -112,28 +427,68 @@ static void mips_cpu_reset(CPUState *s)
#endif
}
-static void mips_cpu_disas_set_info(CPUState *s, disassemble_info *info) {
-#ifdef TARGET_WORDS_BIGENDIAN
- info->print_insn = print_insn_big_mips;
+static void mips_cpu_disas_set_info(CPUState *s, disassemble_info *info)
+{
+ if (!(cpu_env(s)->insn_flags & ISA_NANOMIPS32)) {
+#if TARGET_BIG_ENDIAN
+ info->print_insn = print_insn_big_mips;
#else
- info->print_insn = print_insn_little_mips;
+ info->print_insn = print_insn_little_mips;
#endif
+ } else {
+ info->print_insn = print_insn_nanomips;
+ }
+}
+
+/*
+ * Since commit 6af0bf9c7c3 this model assumes a CPU clocked at 200MHz.
+ */
+#define CPU_FREQ_HZ_DEFAULT 200000000
+
+static void mips_cp0_period_set(MIPSCPU *cpu)
+{
+ CPUMIPSState *env = &cpu->env;
+
+ clock_set_mul_div(cpu->count_div, env->cpu_model->CCRes, 1);
+ clock_set_source(cpu->count_div, cpu->clock);
+ clock_set_source(env->count_clock, cpu->count_div);
}
static void mips_cpu_realizefn(DeviceState *dev, Error **errp)
{
CPUState *cs = CPU(dev);
MIPSCPU *cpu = MIPS_CPU(dev);
+ CPUMIPSState *env = &cpu->env;
MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(dev);
Error *local_err = NULL;
+ if (!clock_get(cpu->clock)) {
+#ifndef CONFIG_USER_ONLY
+ if (!qtest_enabled()) {
+ g_autofree char *cpu_freq_str = freq_to_str(CPU_FREQ_HZ_DEFAULT);
+
+ warn_report("CPU input clock is not connected to any output clock, "
+ "using default frequency of %s.", cpu_freq_str);
+ }
+#endif
+ /* Initialize the frequency in case the clock remains unconnected. */
+ clock_set_hz(cpu->clock, CPU_FREQ_HZ_DEFAULT);
+ }
+ mips_cp0_period_set(cpu);
+
cpu_exec_realizefn(cs, &local_err);
if (local_err != NULL) {
error_propagate(errp, local_err);
return;
}
- cpu_mips_realize_env(&cpu->env);
+ env->exception_base = (int32_t)0xBFC00000;
+
+#if defined(CONFIG_TCG) && !defined(CONFIG_USER_ONLY)
+ mmu_init(env, env->cpu_model);
+#endif
+ fpu_init(env, env->cpu_model);
+ mvp_init(env);
cpu_reset(cs);
qemu_init_vcpu(cs);
@@ -143,13 +498,22 @@ static void mips_cpu_realizefn(DeviceState *dev, Error **errp)
static void mips_cpu_initfn(Object *obj)
{
- CPUState *cs = CPU(obj);
MIPSCPU *cpu = MIPS_CPU(obj);
CPUMIPSState *env = &cpu->env;
MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(obj);
- cs->env_ptr = env;
+ cpu->clock = qdev_init_clock_in(DEVICE(obj), "clk-in", NULL, cpu, 0);
+ cpu->count_div = clock_new(OBJECT(obj), "clk-div-count");
+ env->count_clock = clock_new(OBJECT(obj), "clk-count");
env->cpu_model = mcc->cpu_def;
+#ifndef CONFIG_USER_ONLY
+ if (mcc->cpu_def->lcsr_cpucfg2 & (1 << CPUCFG2_LCSRP)) {
+ memory_region_init_io(&env->iocsr.mr, OBJECT(cpu), NULL,
+ env, "iocsr", UINT64_MAX);
+ address_space_init(&env->iocsr.as,
+ &env->iocsr.mr, "IOCSR");
+ }
+#endif
}
static char *mips_cpu_type_name(const char *cpu_model)
@@ -168,47 +532,73 @@ static ObjectClass *mips_cpu_class_by_name(const char *cpu_model)
return oc;
}
+#ifndef CONFIG_USER_ONLY
+#include "hw/core/sysemu-cpu-ops.h"
+
+static const struct SysemuCPUOps mips_sysemu_ops = {
+ .get_phys_page_debug = mips_cpu_get_phys_page_debug,
+ .legacy_vmsd = &vmstate_mips_cpu,
+};
+#endif
+
+#ifdef CONFIG_TCG
+#include "hw/core/tcg-cpu-ops.h"
+/*
+ * NB: cannot be const, as some elements are changed for specific
+ * mips hardware (see hw/mips/jazz.c).
+ */
+static const TCGCPUOps mips_tcg_ops = {
+ .initialize = mips_tcg_init,
+ .synchronize_from_tb = mips_cpu_synchronize_from_tb,
+ .restore_state_to_opc = mips_restore_state_to_opc,
+
+#if !defined(CONFIG_USER_ONLY)
+ .tlb_fill = mips_cpu_tlb_fill,
+ .cpu_exec_interrupt = mips_cpu_exec_interrupt,
+ .do_interrupt = mips_cpu_do_interrupt,
+ .do_transaction_failed = mips_cpu_do_transaction_failed,
+ .do_unaligned_access = mips_cpu_do_unaligned_access,
+ .io_recompile_replay_branch = mips_io_recompile_replay_branch,
+#endif /* !CONFIG_USER_ONLY */
+};
+#endif /* CONFIG_TCG */
+
static void mips_cpu_class_init(ObjectClass *c, void *data)
{
MIPSCPUClass *mcc = MIPS_CPU_CLASS(c);
CPUClass *cc = CPU_CLASS(c);
DeviceClass *dc = DEVICE_CLASS(c);
+ ResettableClass *rc = RESETTABLE_CLASS(c);
device_class_set_parent_realize(dc, mips_cpu_realizefn,
&mcc->parent_realize);
- mcc->parent_reset = cc->reset;
- cc->reset = mips_cpu_reset;
+ resettable_class_set_parent_phases(rc, NULL, mips_cpu_reset_hold, NULL,
+ &mcc->parent_phases);
cc->class_by_name = mips_cpu_class_by_name;
cc->has_work = mips_cpu_has_work;
- cc->do_interrupt = mips_cpu_do_interrupt;
- cc->cpu_exec_interrupt = mips_cpu_exec_interrupt;
+ cc->mmu_index = mips_cpu_mmu_index;
cc->dump_state = mips_cpu_dump_state;
cc->set_pc = mips_cpu_set_pc;
- cc->synchronize_from_tb = mips_cpu_synchronize_from_tb;
+ 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;
-#ifdef CONFIG_USER_ONLY
- cc->handle_mmu_fault = mips_cpu_handle_mmu_fault;
-#else
- cc->do_unassigned_access = mips_cpu_unassigned_access;
- cc->do_unaligned_access = mips_cpu_do_unaligned_access;
- cc->get_phys_page_debug = mips_cpu_get_phys_page_debug;
- cc->vmsd = &vmstate_mips_cpu;
+#ifndef CONFIG_USER_ONLY
+ cc->sysemu_ops = &mips_sysemu_ops;
#endif
cc->disas_set_info = mips_cpu_disas_set_info;
-#ifdef CONFIG_TCG
- cc->tcg_initialize = mips_tcg_init;
-#endif
-
cc->gdb_num_core_regs = 73;
cc->gdb_stop_before_watchpoint = true;
+#ifdef CONFIG_TCG
+ cc->tcg_ops = &mips_tcg_ops;
+#endif /* CONFIG_TCG */
}
static const TypeInfo mips_cpu_type_info = {
.name = TYPE_MIPS_CPU,
.parent = TYPE_CPU,
.instance_size = sizeof(MIPSCPU),
+ .instance_align = __alignof(MIPSCPU),
.instance_init = mips_cpu_initfn,
.abstract = true,
.class_size = sizeof(MIPSCPUClass),
@@ -246,3 +636,32 @@ static void mips_cpu_register_types(void)
}
type_init(mips_cpu_register_types)
+
+/* Could be used by generic CPU object */
+MIPSCPU *mips_cpu_create_with_clock(const char *cpu_type, Clock *cpu_refclk)
+{
+ DeviceState *cpu;
+
+ cpu = DEVICE(object_new(cpu_type));
+ qdev_connect_clock_in(cpu, "clk-in", cpu_refclk);
+ qdev_realize(cpu, NULL, &error_abort);
+
+ return MIPS_CPU(cpu);
+}
+
+bool cpu_supports_isa(const CPUMIPSState *env, uint64_t isa_mask)
+{
+ return (env->cpu_model->insn_flags & isa_mask) != 0;
+}
+
+bool cpu_type_supports_isa(const char *cpu_type, uint64_t isa)
+{
+ const MIPSCPUClass *mcc = MIPS_CPU_CLASS(object_class_by_name(cpu_type));
+ return (mcc->cpu_def->insn_flags & isa) != 0;
+}
+
+bool cpu_type_supports_cps_smp(const char *cpu_type)
+{
+ const MIPSCPUClass *mcc = MIPS_CPU_CLASS(object_class_by_name(cpu_type));
+ return (mcc->cpu_def->CP0_Config3 & (1 << CP0C3_CMGCR)) != 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 03:08:30 +0000