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MIPS patches 2015-03-11

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Changes:
 * use VMStateDescription for MIPS CPU
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Merge remote-tracking branch 'remotes/lalrae/tags/mips-20150311' into staging

MIPS patches 2015-03-11

Changes:
* use VMStateDescription for MIPS CPU

# gpg: Signature made Wed Mar 11 15:01:52 2015 GMT using RSA key ID 0B29DA6B
# gpg: Can't check signature: public key not found

* remotes/lalrae/tags/mips-20150311:
  target-mips: add missing MSACSR and restore fp_status and hflags
  target-mips: replace cpu_save/cpu_load with VMStateDescription

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2015-03-11 18:22:15 +00:00
commit ee74801035
6 changed files with 312 additions and 353 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
target-mips/cpu-qom.h
View File

@ -74,6 +74,10 @@ static inline MIPSCPU *mips_env_get_cpu(CPUMIPSState *env)
#define ENV_OFFSET offsetof(MIPSCPU, env)
#ifndef CONFIG_USER_ONLY
extern const struct VMStateDescription vmstate_mips_cpu;
#endif
void mips_cpu_do_interrupt(CPUState *cpu);
bool mips_cpu_exec_interrupt(CPUState *cpu, int int_req);
void mips_cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,

1
target-mips/cpu.c
View File

@ -148,6 +148,7 @@ static void mips_cpu_class_init(ObjectClass *c, void *data)
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;
#endif
cc->gdb_num_core_regs = 73;

19
target-mips/cpu.h
View File

@ -614,8 +614,6 @@ void mips_cpu_list (FILE *f, fprintf_function cpu_fprintf);
extern void cpu_wrdsp(uint32_t rs, uint32_t mask_num, CPUMIPSState *env);
extern uint32_t cpu_rddsp(uint32_t mask_num, CPUMIPSState *env);
#define CPU_SAVE_VERSION 5
/* MMU modes definitions. We carefully match the indices with our
hflags layout. */
#define MMU_MODE0_SUFFIX _kernel
@ -781,6 +779,23 @@ static inline void restore_flush_mode(CPUMIPSState *env)
&env->active_fpu.fp_status);
}
static inline void restore_fp_status(CPUMIPSState *env)
{
restore_rounding_mode(env);
restore_flush_mode(env);
}
static inline void restore_msa_fp_status(CPUMIPSState *env)
{
float_status *status = &env->active_tc.msa_fp_status;
int rounding_mode = (env->active_tc.msacsr & MSACSR_RM_MASK) >> MSACSR_RM;
bool flush_to_zero = (env->active_tc.msacsr & MSACSR_FS_MASK) != 0;
set_float_rounding_mode(ieee_rm[rounding_mode], status);
set_flush_to_zero(flush_to_zero, status);
set_flush_inputs_to_zero(flush_to_zero, status);
}
static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
target_ulong *cs_base, int *flags)
{

619
target-mips/machine.c
View File

@ -1,341 +1,296 @@
#include "hw/hw.h"
#include "hw/boards.h"
#include "cpu.h"
static void save_tc(QEMUFile *f, TCState *tc)
static int cpu_post_load(void *opaque, int version_id)
{
int i;
MIPSCPU *cpu = opaque;
CPUMIPSState *env = &cpu->env;
/* Save active TC */
for(i = 0; i < 32; i++)
qemu_put_betls(f, &tc->gpr[i]);
qemu_put_betls(f, &tc->PC);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_put_betls(f, &tc->HI[i]);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_put_betls(f, &tc->LO[i]);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_put_betls(f, &tc->ACX[i]);
qemu_put_betls(f, &tc->DSPControl);
qemu_put_sbe32s(f, &tc->CP0_TCStatus);
qemu_put_sbe32s(f, &tc->CP0_TCBind);
qemu_put_betls(f, &tc->CP0_TCHalt);
qemu_put_betls(f, &tc->CP0_TCContext);
qemu_put_betls(f, &tc->CP0_TCSchedule);
qemu_put_betls(f, &tc->CP0_TCScheFBack);
qemu_put_sbe32s(f, &tc->CP0_Debug_tcstatus);
qemu_put_betls(f, &tc->CP0_UserLocal);
}
restore_fp_status(env);
restore_msa_fp_status(env);
compute_hflags(env);
static void save_fpu(QEMUFile *f, CPUMIPSFPUContext *fpu)
{
int i;
for(i = 0; i < 32; i++)
qemu_put_be64s(f, &fpu->fpr[i].d);
qemu_put_s8s(f, &fpu->fp_status.float_detect_tininess);
qemu_put_s8s(f, &fpu->fp_status.float_rounding_mode);
qemu_put_s8s(f, &fpu->fp_status.float_exception_flags);
qemu_put_be32s(f, &fpu->fcr0);
qemu_put_be32s(f, &fpu->fcr31);
}
void cpu_save(QEMUFile *f, void *opaque)
{
CPUMIPSState *env = opaque;
int i;
/* Save active TC */
save_tc(f, &env->active_tc);
/* Save active FPU */
save_fpu(f, &env->active_fpu);
/* Save MVP */
qemu_put_sbe32s(f, &env->mvp->CP0_MVPControl);
qemu_put_sbe32s(f, &env->mvp->CP0_MVPConf0);
qemu_put_sbe32s(f, &env->mvp->CP0_MVPConf1);
/* Save TLB */
qemu_put_be32s(f, &env->tlb->nb_tlb);
qemu_put_be32s(f, &env->tlb->tlb_in_use);
for(i = 0; i < MIPS_TLB_MAX; i++) {
uint16_t flags = ((env->tlb->mmu.r4k.tlb[i].EHINV << 15) |
(env->tlb->mmu.r4k.tlb[i].RI1 << 14) |
(env->tlb->mmu.r4k.tlb[i].RI0 << 13) |
(env->tlb->mmu.r4k.tlb[i].XI1 << 12) |
(env->tlb->mmu.r4k.tlb[i].XI0 << 11) |
(env->tlb->mmu.r4k.tlb[i].G << 10) |
(env->tlb->mmu.r4k.tlb[i].C0 << 7) |
(env->tlb->mmu.r4k.tlb[i].C1 << 4) |
(env->tlb->mmu.r4k.tlb[i].V0 << 3) |
(env->tlb->mmu.r4k.tlb[i].V1 << 2) |
(env->tlb->mmu.r4k.tlb[i].D0 << 1) |
(env->tlb->mmu.r4k.tlb[i].D1 << 0));
uint8_t asid;
qemu_put_betls(f, &env->tlb->mmu.r4k.tlb[i].VPN);
qemu_put_be32s(f, &env->tlb->mmu.r4k.tlb[i].PageMask);
asid = env->tlb->mmu.r4k.tlb[i].ASID;
qemu_put_8s(f, &asid);
qemu_put_be16s(f, &flags);
qemu_put_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[0]);
qemu_put_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[1]);
}
/* Save CPU metastate */
qemu_put_be32s(f, &env->current_tc);
qemu_put_be32s(f, &env->current_fpu);
qemu_put_sbe32s(f, &env->error_code);
qemu_put_be32s(f, &env->hflags);
qemu_put_betls(f, &env->btarget);
i = env->bcond;
qemu_put_sbe32s(f, &i);
/* Save remaining CP1 registers */
qemu_put_sbe32s(f, &env->CP0_Index);
qemu_put_sbe32s(f, &env->CP0_Random);
qemu_put_sbe32s(f, &env->CP0_VPEControl);
qemu_put_sbe32s(f, &env->CP0_VPEConf0);
qemu_put_sbe32s(f, &env->CP0_VPEConf1);
qemu_put_betls(f, &env->CP0_YQMask);
qemu_put_betls(f, &env->CP0_VPESchedule);
qemu_put_betls(f, &env->CP0_VPEScheFBack);
qemu_put_sbe32s(f, &env->CP0_VPEOpt);
qemu_put_betls(f, &env->CP0_EntryLo0);
qemu_put_betls(f, &env->CP0_EntryLo1);
qemu_put_betls(f, &env->CP0_Context);
qemu_put_sbe32s(f, &env->CP0_PageMask);
qemu_put_sbe32s(f, &env->CP0_PageGrain);
qemu_put_sbe32s(f, &env->CP0_Wired);
qemu_put_sbe32s(f, &env->CP0_SRSConf0);
qemu_put_sbe32s(f, &env->CP0_SRSConf1);
qemu_put_sbe32s(f, &env->CP0_SRSConf2);
qemu_put_sbe32s(f, &env->CP0_SRSConf3);
qemu_put_sbe32s(f, &env->CP0_SRSConf4);
qemu_put_sbe32s(f, &env->CP0_HWREna);
qemu_put_betls(f, &env->CP0_BadVAddr);
qemu_put_be32s(f, &env->CP0_BadInstr);
qemu_put_be32s(f, &env->CP0_BadInstrP);
qemu_put_sbe32s(f, &env->CP0_Count);
qemu_put_betls(f, &env->CP0_EntryHi);
qemu_put_sbe32s(f, &env->CP0_Compare);
qemu_put_sbe32s(f, &env->CP0_Status);
qemu_put_sbe32s(f, &env->CP0_IntCtl);
qemu_put_sbe32s(f, &env->CP0_SRSCtl);
qemu_put_sbe32s(f, &env->CP0_SRSMap);
qemu_put_sbe32s(f, &env->CP0_Cause);
qemu_put_betls(f, &env->CP0_EPC);
qemu_put_sbe32s(f, &env->CP0_PRid);
qemu_put_sbe32s(f, &env->CP0_EBase);
qemu_put_sbe32s(f, &env->CP0_Config0);
qemu_put_sbe32s(f, &env->CP0_Config1);
qemu_put_sbe32s(f, &env->CP0_Config2);
qemu_put_sbe32s(f, &env->CP0_Config3);
qemu_put_sbe32s(f, &env->CP0_Config6);
qemu_put_sbe32s(f, &env->CP0_Config7);
qemu_put_betls(f, &env->lladdr);
for(i = 0; i < 8; i++)
qemu_put_betls(f, &env->CP0_WatchLo[i]);
for(i = 0; i < 8; i++)
qemu_put_sbe32s(f, &env->CP0_WatchHi[i]);
qemu_put_betls(f, &env->CP0_XContext);
qemu_put_sbe32s(f, &env->CP0_Framemask);
qemu_put_sbe32s(f, &env->CP0_Debug);
qemu_put_betls(f, &env->CP0_DEPC);
qemu_put_sbe32s(f, &env->CP0_Performance0);
qemu_put_sbe32s(f, &env->CP0_TagLo);
qemu_put_sbe32s(f, &env->CP0_DataLo);
qemu_put_sbe32s(f, &env->CP0_TagHi);
qemu_put_sbe32s(f, &env->CP0_DataHi);
qemu_put_betls(f, &env->CP0_ErrorEPC);
qemu_put_sbe32s(f, &env->CP0_DESAVE);
for (i = 0; i < MIPS_KSCRATCH_NUM; i++) {
qemu_put_betls(f, &env->CP0_KScratch[i]);
}
/* Save inactive TC state */
for (i = 0; i < MIPS_SHADOW_SET_MAX; i++)
save_tc(f, &env->tcs[i]);
for (i = 0; i < MIPS_FPU_MAX; i++)
save_fpu(f, &env->fpus[i]);
}
static void load_tc(QEMUFile *f, TCState *tc, int version_id)
{
int i;
/* Save active TC */
for(i = 0; i < 32; i++)
qemu_get_betls(f, &tc->gpr[i]);
qemu_get_betls(f, &tc->PC);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_get_betls(f, &tc->HI[i]);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_get_betls(f, &tc->LO[i]);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_get_betls(f, &tc->ACX[i]);
qemu_get_betls(f, &tc->DSPControl);
qemu_get_sbe32s(f, &tc->CP0_TCStatus);
qemu_get_sbe32s(f, &tc->CP0_TCBind);
qemu_get_betls(f, &tc->CP0_TCHalt);
qemu_get_betls(f, &tc->CP0_TCContext);
qemu_get_betls(f, &tc->CP0_TCSchedule);
qemu_get_betls(f, &tc->CP0_TCScheFBack);
qemu_get_sbe32s(f, &tc->CP0_Debug_tcstatus);
if (version_id >= 4) {
qemu_get_betls(f, &tc->CP0_UserLocal);
}
}
static void load_fpu(QEMUFile *f, CPUMIPSFPUContext *fpu)
{
int i;
for(i = 0; i < 32; i++)
qemu_get_be64s(f, &fpu->fpr[i].d);
qemu_get_s8s(f, &fpu->fp_status.float_detect_tininess);
qemu_get_s8s(f, &fpu->fp_status.float_rounding_mode);
qemu_get_s8s(f, &fpu->fp_status.float_exception_flags);
qemu_get_be32s(f, &fpu->fcr0);
qemu_get_be32s(f, &fpu->fcr31);
}
int cpu_load(QEMUFile *f, void *opaque, int version_id)
{
CPUMIPSState *env = opaque;
MIPSCPU *cpu = mips_env_get_cpu(env);
int i;
if (version_id < 3) {
return -EINVAL;
}
/* Load active TC */
load_tc(f, &env->active_tc, version_id);
/* Load active FPU */
load_fpu(f, &env->active_fpu);
/* Load MVP */
qemu_get_sbe32s(f, &env->mvp->CP0_MVPControl);
qemu_get_sbe32s(f, &env->mvp->CP0_MVPConf0);
qemu_get_sbe32s(f, &env->mvp->CP0_MVPConf1);
/* Load TLB */
qemu_get_be32s(f, &env->tlb->nb_tlb);
qemu_get_be32s(f, &env->tlb->tlb_in_use);
for(i = 0; i < MIPS_TLB_MAX; i++) {
uint16_t flags;
uint8_t asid;
qemu_get_betls(f, &env->tlb->mmu.r4k.tlb[i].VPN);
qemu_get_be32s(f, &env->tlb->mmu.r4k.tlb[i].PageMask);
qemu_get_8s(f, &asid);
env->tlb->mmu.r4k.tlb[i].ASID = asid;
qemu_get_be16s(f, &flags);
env->tlb->mmu.r4k.tlb[i].G = (flags >> 10) & 1;
env->tlb->mmu.r4k.tlb[i].C0 = (flags >> 7) & 3;
env->tlb->mmu.r4k.tlb[i].C1 = (flags >> 4) & 3;
env->tlb->mmu.r4k.tlb[i].V0 = (flags >> 3) & 1;
env->tlb->mmu.r4k.tlb[i].V1 = (flags >> 2) & 1;
env->tlb->mmu.r4k.tlb[i].D0 = (flags >> 1) & 1;
env->tlb->mmu.r4k.tlb[i].D1 = (flags >> 0) & 1;
if (version_id >= 5) {
env->tlb->mmu.r4k.tlb[i].EHINV = (flags >> 15) & 1;
env->tlb->mmu.r4k.tlb[i].RI1 = (flags >> 14) & 1;
env->tlb->mmu.r4k.tlb[i].RI0 = (flags >> 13) & 1;
env->tlb->mmu.r4k.tlb[i].XI1 = (flags >> 12) & 1;
env->tlb->mmu.r4k.tlb[i].XI0 = (flags >> 11) & 1;
}
qemu_get_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[0]);
qemu_get_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[1]);
}
/* Load CPU metastate */
qemu_get_be32s(f, &env->current_tc);
qemu_get_be32s(f, &env->current_fpu);
qemu_get_sbe32s(f, &env->error_code);
qemu_get_be32s(f, &env->hflags);
qemu_get_betls(f, &env->btarget);
qemu_get_sbe32s(f, &i);
env->bcond = i;
/* Load remaining CP1 registers */
qemu_get_sbe32s(f, &env->CP0_Index);
qemu_get_sbe32s(f, &env->CP0_Random);
qemu_get_sbe32s(f, &env->CP0_VPEControl);
qemu_get_sbe32s(f, &env->CP0_VPEConf0);
qemu_get_sbe32s(f, &env->CP0_VPEConf1);
qemu_get_betls(f, &env->CP0_YQMask);
qemu_get_betls(f, &env->CP0_VPESchedule);
qemu_get_betls(f, &env->CP0_VPEScheFBack);
qemu_get_sbe32s(f, &env->CP0_VPEOpt);
qemu_get_betls(f, &env->CP0_EntryLo0);
qemu_get_betls(f, &env->CP0_EntryLo1);
qemu_get_betls(f, &env->CP0_Context);
qemu_get_sbe32s(f, &env->CP0_PageMask);
qemu_get_sbe32s(f, &env->CP0_PageGrain);
qemu_get_sbe32s(f, &env->CP0_Wired);
qemu_get_sbe32s(f, &env->CP0_SRSConf0);
qemu_get_sbe32s(f, &env->CP0_SRSConf1);
qemu_get_sbe32s(f, &env->CP0_SRSConf2);
qemu_get_sbe32s(f, &env->CP0_SRSConf3);
qemu_get_sbe32s(f, &env->CP0_SRSConf4);
qemu_get_sbe32s(f, &env->CP0_HWREna);
qemu_get_betls(f, &env->CP0_BadVAddr);
if (version_id >= 5) {
qemu_get_be32s(f, &env->CP0_BadInstr);
qemu_get_be32s(f, &env->CP0_BadInstrP);
}
qemu_get_sbe32s(f, &env->CP0_Count);
qemu_get_betls(f, &env->CP0_EntryHi);
qemu_get_sbe32s(f, &env->CP0_Compare);
qemu_get_sbe32s(f, &env->CP0_Status);
qemu_get_sbe32s(f, &env->CP0_IntCtl);
qemu_get_sbe32s(f, &env->CP0_SRSCtl);
qemu_get_sbe32s(f, &env->CP0_SRSMap);
qemu_get_sbe32s(f, &env->CP0_Cause);
qemu_get_betls(f, &env->CP0_EPC);
qemu_get_sbe32s(f, &env->CP0_PRid);
qemu_get_sbe32s(f, &env->CP0_EBase);
qemu_get_sbe32s(f, &env->CP0_Config0);
qemu_get_sbe32s(f, &env->CP0_Config1);
qemu_get_sbe32s(f, &env->CP0_Config2);
qemu_get_sbe32s(f, &env->CP0_Config3);
qemu_get_sbe32s(f, &env->CP0_Config6);
qemu_get_sbe32s(f, &env->CP0_Config7);
qemu_get_betls(f, &env->lladdr);
for(i = 0; i < 8; i++)
qemu_get_betls(f, &env->CP0_WatchLo[i]);
for(i = 0; i < 8; i++)
qemu_get_sbe32s(f, &env->CP0_WatchHi[i]);
qemu_get_betls(f, &env->CP0_XContext);
qemu_get_sbe32s(f, &env->CP0_Framemask);
qemu_get_sbe32s(f, &env->CP0_Debug);
qemu_get_betls(f, &env->CP0_DEPC);
qemu_get_sbe32s(f, &env->CP0_Performance0);
qemu_get_sbe32s(f, &env->CP0_TagLo);
qemu_get_sbe32s(f, &env->CP0_DataLo);
qemu_get_sbe32s(f, &env->CP0_TagHi);
qemu_get_sbe32s(f, &env->CP0_DataHi);
qemu_get_betls(f, &env->CP0_ErrorEPC);
qemu_get_sbe32s(f, &env->CP0_DESAVE);
if (version_id >= 5) {
for (i = 0; i < MIPS_KSCRATCH_NUM; i++) {
qemu_get_betls(f, &env->CP0_KScratch[i]);
}
}
/* Load inactive TC state */
for (i = 0; i < MIPS_SHADOW_SET_MAX; i++) {
load_tc(f, &env->tcs[i], version_id);
}
for (i = 0; i < MIPS_FPU_MAX; i++)
load_fpu(f, &env->fpus[i]);
/* XXX: ensure compatibility for halted bit ? */
tlb_flush(CPU(cpu), 1);
return 0;
}
/* FPU state */
static int get_fpr(QEMUFile *f, void *pv, size_t size)
{
int i;
fpr_t *v = pv;
/* Restore entire MSA vector register */
for (i = 0; i < MSA_WRLEN/64; i++) {
qemu_get_sbe64s(f, &v->wr.d[i]);
}
return 0;
}
static void put_fpr(QEMUFile *f, void *pv, size_t size)
{
int i;
fpr_t *v = pv;
/* Save entire MSA vector register */
for (i = 0; i < MSA_WRLEN/64; i++) {
qemu_put_sbe64s(f, &v->wr.d[i]);
}
}
const VMStateInfo vmstate_info_fpr = {
.name = "fpr",
.get = get_fpr,
.put = put_fpr,
};
#define VMSTATE_FPR_ARRAY_V(_f, _s, _n, _v) \
VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_fpr, fpr_t)
#define VMSTATE_FPR_ARRAY(_f, _s, _n) \
VMSTATE_FPR_ARRAY_V(_f, _s, _n, 0)
static VMStateField vmstate_fpu_fields[] = {
VMSTATE_FPR_ARRAY(fpr, CPUMIPSFPUContext, 32),
VMSTATE_UINT32(fcr0, CPUMIPSFPUContext),
VMSTATE_UINT32(fcr31, CPUMIPSFPUContext),
VMSTATE_END_OF_LIST()
};
const VMStateDescription vmstate_fpu = {
.name = "cpu/fpu",
.version_id = 1,
.minimum_version_id = 1,
.fields = vmstate_fpu_fields
};
const VMStateDescription vmstate_inactive_fpu = {
.name = "cpu/inactive_fpu",
.version_id = 1,
.minimum_version_id = 1,
.fields = vmstate_fpu_fields
};
/* TC state */
static VMStateField vmstate_tc_fields[] = {
VMSTATE_UINTTL_ARRAY(gpr, TCState, 32),
VMSTATE_UINTTL(PC, TCState),
VMSTATE_UINTTL_ARRAY(HI, TCState, MIPS_DSP_ACC),
VMSTATE_UINTTL_ARRAY(LO, TCState, MIPS_DSP_ACC),
VMSTATE_UINTTL_ARRAY(ACX, TCState, MIPS_DSP_ACC),
VMSTATE_UINTTL(DSPControl, TCState),
VMSTATE_INT32(CP0_TCStatus, TCState),
VMSTATE_INT32(CP0_TCBind, TCState),
VMSTATE_UINTTL(CP0_TCHalt, TCState),
VMSTATE_UINTTL(CP0_TCContext, TCState),
VMSTATE_UINTTL(CP0_TCSchedule, TCState),
VMSTATE_UINTTL(CP0_TCScheFBack, TCState),
VMSTATE_INT32(CP0_Debug_tcstatus, TCState),
VMSTATE_UINTTL(CP0_UserLocal, TCState),
VMSTATE_INT32(msacsr, TCState),
VMSTATE_END_OF_LIST()
};
const VMStateDescription vmstate_tc = {
.name = "cpu/tc",
.version_id = 1,
.minimum_version_id = 1,
.fields = vmstate_tc_fields
};
const VMStateDescription vmstate_inactive_tc = {
.name = "cpu/inactive_tc",
.version_id = 1,
.minimum_version_id = 1,
.fields = vmstate_tc_fields
};
/* MVP state */
const VMStateDescription vmstate_mvp = {
.name = "cpu/mvp",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_INT32(CP0_MVPControl, CPUMIPSMVPContext),
VMSTATE_INT32(CP0_MVPConf0, CPUMIPSMVPContext),
VMSTATE_INT32(CP0_MVPConf1, CPUMIPSMVPContext),
VMSTATE_END_OF_LIST()
}
};
/* TLB state */
static int get_tlb(QEMUFile *f, void *pv, size_t size)
{
r4k_tlb_t *v = pv;
uint16_t flags;
qemu_get_betls(f, &v->VPN);
qemu_get_be32s(f, &v->PageMask);
qemu_get_8s(f, &v->ASID);
qemu_get_be16s(f, &flags);
v->G = (flags >> 10) & 1;
v->C0 = (flags >> 7) & 3;
v->C1 = (flags >> 4) & 3;
v->V0 = (flags >> 3) & 1;
v->V1 = (flags >> 2) & 1;
v->D0 = (flags >> 1) & 1;
v->D1 = (flags >> 0) & 1;
v->EHINV = (flags >> 15) & 1;
v->RI1 = (flags >> 14) & 1;
v->RI0 = (flags >> 13) & 1;
v->XI1 = (flags >> 12) & 1;
v->XI0 = (flags >> 11) & 1;
qemu_get_betls(f, &v->PFN[0]);
qemu_get_betls(f, &v->PFN[1]);
return 0;
}
static void put_tlb(QEMUFile *f, void *pv, size_t size)
{
r4k_tlb_t *v = pv;
uint16_t flags = ((v->EHINV << 15) |
(v->RI1 << 14) |
(v->RI0 << 13) |
(v->XI1 << 12) |
(v->XI0 << 11) |
(v->G << 10) |
(v->C0 << 7) |
(v->C1 << 4) |
(v->V0 << 3) |
(v->V1 << 2) |
(v->D0 << 1) |
(v->D1 << 0));
qemu_put_betls(f, &v->VPN);
qemu_put_be32s(f, &v->PageMask);
qemu_put_8s(f, &v->ASID);
qemu_put_be16s(f, &flags);
qemu_put_betls(f, &v->PFN[0]);
qemu_put_betls(f, &v->PFN[1]);
}
const VMStateInfo vmstate_info_tlb = {
.name = "tlb_entry",
.get = get_tlb,
.put = put_tlb,
};
#define VMSTATE_TLB_ARRAY_V(_f, _s, _n, _v) \
VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_tlb, r4k_tlb_t)
#define VMSTATE_TLB_ARRAY(_f, _s, _n) \
VMSTATE_TLB_ARRAY_V(_f, _s, _n, 0)
const VMStateDescription vmstate_tlb = {
.name = "cpu/tlb",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT32(nb_tlb, CPUMIPSTLBContext),
VMSTATE_UINT32(tlb_in_use, CPUMIPSTLBContext),
VMSTATE_TLB_ARRAY(mmu.r4k.tlb, CPUMIPSTLBContext, MIPS_TLB_MAX),
VMSTATE_END_OF_LIST()
}
};
/* MIPS CPU state */
const VMStateDescription vmstate_mips_cpu = {
.name = "cpu",
.version_id = 6,
.minimum_version_id = 6,
.post_load = cpu_post_load,
.fields = (VMStateField[]) {
/* Active TC */
VMSTATE_STRUCT(env.active_tc, MIPSCPU, 1, vmstate_tc, TCState),
/* Active FPU */
VMSTATE_STRUCT(env.active_fpu, MIPSCPU, 1, vmstate_fpu,
CPUMIPSFPUContext),
/* MVP */
VMSTATE_STRUCT_POINTER(env.mvp, MIPSCPU, vmstate_mvp,
CPUMIPSMVPContext),
/* TLB */
VMSTATE_STRUCT_POINTER(env.tlb, MIPSCPU, vmstate_tlb,
CPUMIPSTLBContext),
/* CPU metastate */
VMSTATE_UINT32(env.current_tc, MIPSCPU),
VMSTATE_UINT32(env.current_fpu, MIPSCPU),
VMSTATE_INT32(env.error_code, MIPSCPU),
VMSTATE_UINTTL(env.btarget, MIPSCPU),
VMSTATE_UINTTL(env.bcond, MIPSCPU),
/* Remaining CP0 registers */
VMSTATE_INT32(env.CP0_Index, MIPSCPU),
VMSTATE_INT32(env.CP0_Random, MIPSCPU),
VMSTATE_INT32(env.CP0_VPEControl, MIPSCPU),
VMSTATE_INT32(env.CP0_VPEConf0, MIPSCPU),
VMSTATE_INT32(env.CP0_VPEConf1, MIPSCPU),
VMSTATE_UINTTL(env.CP0_YQMask, MIPSCPU),
VMSTATE_UINTTL(env.CP0_VPESchedule, MIPSCPU),
VMSTATE_UINTTL(env.CP0_VPEScheFBack, MIPSCPU),
VMSTATE_INT32(env.CP0_VPEOpt, MIPSCPU),
VMSTATE_UINTTL(env.CP0_EntryLo0, MIPSCPU),
VMSTATE_UINTTL(env.CP0_EntryLo1, MIPSCPU),
VMSTATE_UINTTL(env.CP0_Context, MIPSCPU),
VMSTATE_INT32(env.CP0_PageMask, MIPSCPU),
VMSTATE_INT32(env.CP0_PageGrain, MIPSCPU),
VMSTATE_INT32(env.CP0_Wired, MIPSCPU),
VMSTATE_INT32(env.CP0_SRSConf0, MIPSCPU),
VMSTATE_INT32(env.CP0_SRSConf1, MIPSCPU),
VMSTATE_INT32(env.CP0_SRSConf2, MIPSCPU),
VMSTATE_INT32(env.CP0_SRSConf3, MIPSCPU),
VMSTATE_INT32(env.CP0_SRSConf4, MIPSCPU),
VMSTATE_INT32(env.CP0_HWREna, MIPSCPU),
VMSTATE_UINTTL(env.CP0_BadVAddr, MIPSCPU),
VMSTATE_UINT32(env.CP0_BadInstr, MIPSCPU),
VMSTATE_UINT32(env.CP0_BadInstrP, MIPSCPU),
VMSTATE_INT32(env.CP0_Count, MIPSCPU),
VMSTATE_UINTTL(env.CP0_EntryHi, MIPSCPU),
VMSTATE_INT32(env.CP0_Compare, MIPSCPU),
VMSTATE_INT32(env.CP0_Status, MIPSCPU),
VMSTATE_INT32(env.CP0_IntCtl, MIPSCPU),
VMSTATE_INT32(env.CP0_SRSCtl, MIPSCPU),
VMSTATE_INT32(env.CP0_SRSMap, MIPSCPU),
VMSTATE_INT32(env.CP0_Cause, MIPSCPU),
VMSTATE_UINTTL(env.CP0_EPC, MIPSCPU),
VMSTATE_INT32(env.CP0_PRid, MIPSCPU),
VMSTATE_INT32(env.CP0_EBase, MIPSCPU),
VMSTATE_INT32(env.CP0_Config0, MIPSCPU),
VMSTATE_INT32(env.CP0_Config1, MIPSCPU),
VMSTATE_INT32(env.CP0_Config2, MIPSCPU),
VMSTATE_INT32(env.CP0_Config3, MIPSCPU),
VMSTATE_INT32(env.CP0_Config6, MIPSCPU),
VMSTATE_INT32(env.CP0_Config7, MIPSCPU),
VMSTATE_UINTTL(env.lladdr, MIPSCPU),
VMSTATE_UINTTL_ARRAY(env.CP0_WatchLo, MIPSCPU, 8),
VMSTATE_INT32_ARRAY(env.CP0_WatchHi, MIPSCPU, 8),
VMSTATE_UINTTL(env.CP0_XContext, MIPSCPU),
VMSTATE_INT32(env.CP0_Framemask, MIPSCPU),
VMSTATE_INT32(env.CP0_Debug, MIPSCPU),
VMSTATE_UINTTL(env.CP0_DEPC, MIPSCPU),
VMSTATE_INT32(env.CP0_Performance0, MIPSCPU),
VMSTATE_INT32(env.CP0_TagLo, MIPSCPU),
VMSTATE_INT32(env.CP0_DataLo, MIPSCPU),
VMSTATE_INT32(env.CP0_TagHi, MIPSCPU),
VMSTATE_INT32(env.CP0_DataHi, MIPSCPU),
VMSTATE_UINTTL(env.CP0_ErrorEPC, MIPSCPU),
VMSTATE_INT32(env.CP0_DESAVE, MIPSCPU),
VMSTATE_UINTTL_ARRAY(env.CP0_KScratch, MIPSCPU, MIPS_KSCRATCH_NUM),
/* Inactive TC */
VMSTATE_STRUCT_ARRAY(env.tcs, MIPSCPU, MIPS_SHADOW_SET_MAX, 1,
vmstate_inactive_tc, TCState),
VMSTATE_STRUCT_ARRAY(env.fpus, MIPSCPU, MIPS_FPU_MAX, 1,
vmstate_inactive_fpu, CPUMIPSFPUContext),
VMSTATE_END_OF_LIST()
},
};

12
target-mips/msa_helper.c
View File

@ -1348,17 +1348,7 @@ void helper_msa_ctcmsa(CPUMIPSState *env, target_ulong elm, uint32_t cd)
break;
case 1:
env->active_tc.msacsr = (int32_t)elm & MSACSR_MASK;
/* set float_status rounding mode */
set_float_rounding_mode(
ieee_rm[(env->active_tc.msacsr & MSACSR_RM_MASK) >> MSACSR_RM],
&env->active_tc.msa_fp_status);
/* set float_status flush modes */
set_flush_to_zero(
(env->active_tc.msacsr & MSACSR_FS_MASK) != 0 ? 1 : 0,
&env->active_tc.msa_fp_status);
set_flush_inputs_to_zero(
(env->active_tc.msacsr & MSACSR_FS_MASK) != 0 ? 1 : 0,
&env->active_tc.msa_fp_status);
restore_msa_fp_status(env);
/* check exception */
if ((GET_FP_ENABLE(env->active_tc.msacsr) | FP_UNIMPLEMENTED)
& GET_FP_CAUSE(env->active_tc.msacsr)) {

10
target-mips/translate_init.c
View File

@ -835,6 +835,8 @@ static void msa_reset(CPUMIPSState *env)
- round to nearest / ties to even (RM bits are 0) */
env->active_tc.msacsr = 0;
restore_msa_fp_status(env);
/* tininess detected after rounding.*/
set_float_detect_tininess(float_tininess_after_rounding,
&env->active_tc.msa_fp_status);
@ -842,14 +844,6 @@ static void msa_reset(CPUMIPSState *env)
/* clear float_status exception flags */
set_float_exception_flags(0, &env->active_tc.msa_fp_status);
/* set float_status rounding mode */
set_float_rounding_mode(float_round_nearest_even,
&env->active_tc.msa_fp_status);
/* set float_status flush modes */
set_flush_to_zero(0, &env->active_tc.msa_fp_status);
set_flush_inputs_to_zero(0, &env->active_tc.msa_fp_status);
/* clear float_status nan mode */
set_default_nan_mode(0, &env->active_tc.msa_fp_status);
}