#define ALIGNED_ONLY
-#define ELF_MACHINE EM_MIPS
-
#define CPUArchState struct CPUMIPSState
#include "config.h"
uint_fast16_t RI0:1;
uint_fast16_t RI1:1;
uint_fast16_t EHINV:1;
- target_ulong PFN[2];
+ uint64_t PFN[2];
};
#if !defined(CONFIG_USER_ONLY)
float_status fp_status;
/* fpu implementation/revision register (fir) */
uint32_t fcr0;
+#define FCR0_FREP 29
#define FCR0_UFRP 28
#define FCR0_F64 22
#define FCR0_L 21
};
#define NB_MMU_MODES 3
+#define TARGET_INSN_START_EXTRA_WORDS 2
typedef struct CPUMIPSMVPContext CPUMIPSMVPContext;
struct CPUMIPSMVPContext {
uint32_t SEGBITS;
uint32_t PABITS;
+#if defined(TARGET_MIPS64)
+# define PABITS_BASE 36
+#else
+# define PABITS_BASE 32
+#endif
target_ulong SEGMask;
- target_ulong PAMask;
+ uint64_t PAMask;
+#define PAMASK_BASE ((1ULL << PABITS_BASE) - 1)
int32_t msair;
#define MSAIR_ProcID 8
#define CP0VPEOpt_DWX2 2
#define CP0VPEOpt_DWX1 1
#define CP0VPEOpt_DWX0 0
- target_ulong CP0_EntryLo0;
- target_ulong CP0_EntryLo1;
+ uint64_t CP0_EntryLo0;
+ uint64_t CP0_EntryLo1;
#if defined(TARGET_MIPS64)
# define CP0EnLo_RI 63
# define CP0EnLo_XI 62
int32_t CP0_PageGrain;
#define CP0PG_RIE 31
#define CP0PG_XIE 30
+#define CP0PG_ELPA 29
#define CP0PG_IEC 27
int32_t CP0_Wired;
int32_t CP0_SRSConf0_rw_bitmask;
#define CP0C0_K23 28
#define CP0C0_KU 25
#define CP0C0_MDU 20
-#define CP0C0_MM 17
+#define CP0C0_MM 18
#define CP0C0_BM 16
#define CP0C0_BE 15
#define CP0C0_AT 13
#define CP0C5_CV 29
#define CP0C5_EVA 28
#define CP0C5_MSAEn 27
+#define CP0C5_XNP 13
+#define CP0C5_UFE 9
+#define CP0C5_FRE 8
#define CP0C5_SBRI 6
+#define CP0C5_MVH 5
+#define CP0C5_LLB 4
#define CP0C5_UFR 2
#define CP0C5_NFExists 0
int32_t CP0_Config6;
int32_t CP0_Config7;
/* XXX: Maybe make LLAddr per-TC? */
- target_ulong lladdr;
+ uint64_t lladdr;
target_ulong llval;
target_ulong llnewval;
target_ulong llreg;
- target_ulong CP0_LLAddr_rw_bitmask;
+ uint64_t CP0_LLAddr_rw_bitmask;
int CP0_LLAddr_shift;
target_ulong CP0_WatchLo[8];
int32_t CP0_WatchHi[8];
#define CP0DB_DSS 0
target_ulong CP0_DEPC;
int32_t CP0_Performance0;
- int32_t CP0_TagLo;
+ uint64_t CP0_TagLo;
int32_t CP0_DataLo;
int32_t CP0_TagHi;
int32_t CP0_DataHi;
#define EXCP_INST_NOTAVAIL 0x2 /* No valid instruction word for BadInstr */
uint32_t hflags; /* CPU State */
/* TMASK defines different execution modes */
-#define MIPS_HFLAG_TMASK 0x15807FF
+#define MIPS_HFLAG_TMASK 0x75807FF
#define MIPS_HFLAG_MODE 0x00007 /* execution modes */
/* The KSU flags must be the lowest bits in hflags. The flag order
must be the same as defined for CP0 Status. This allows to use
#define MIPS_HFLAG_SBRI 0x400000 /* R6 SDBBP causes RI excpt. in user mode */
#define MIPS_HFLAG_FBNSLOT 0x800000 /* Forbidden slot */
#define MIPS_HFLAG_MSA 0x1000000
+#define MIPS_HFLAG_FRE 0x2000000 /* FRE enabled */
+#define MIPS_HFLAG_ELPA 0x4000000
target_ulong btarget; /* Jump / branch target */
target_ulong bcond; /* Branch condition (if needed) */
void mips_cpu_list (FILE *f, fprintf_function cpu_fprintf);
#define cpu_exec cpu_mips_exec
-#define cpu_gen_code cpu_mips_gen_code
#define cpu_signal_handler cpu_mips_signal_handler
#define cpu_list mips_cpu_list
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
#define MMU_MODE1_SUFFIX _super
#define MMU_MODE2_SUFFIX _user
#define MMU_USER_IDX 2
-static inline int cpu_mmu_index (CPUMIPSState *env)
+static inline int cpu_mmu_index (CPUMIPSState *env, bool ifetch)
{
return env->hflags & MIPS_HFLAG_KSU;
}
-static inline int cpu_mips_hw_interrupts_pending(CPUMIPSState *env)
+static inline bool cpu_mips_hw_interrupts_enabled(CPUMIPSState *env)
{
- int32_t pending;
- int32_t status;
- int r;
-
- if (!(env->CP0_Status & (1 << CP0St_IE)) ||
- (env->CP0_Status & (1 << CP0St_EXL)) ||
- (env->CP0_Status & (1 << CP0St_ERL)) ||
+ return (env->CP0_Status & (1 << CP0St_IE)) &&
+ !(env->CP0_Status & (1 << CP0St_EXL)) &&
+ !(env->CP0_Status & (1 << CP0St_ERL)) &&
+ !(env->hflags & MIPS_HFLAG_DM) &&
/* Note that the TCStatus IXMT field is initialized to zero,
and only MT capable cores can set it to one. So we don't
need to check for MT capabilities here. */
- (env->active_tc.CP0_TCStatus & (1 << CP0TCSt_IXMT)) ||
- (env->hflags & MIPS_HFLAG_DM)) {
- /* Interrupts are disabled */
- return 0;
- }
+ !(env->active_tc.CP0_TCStatus & (1 << CP0TCSt_IXMT));
+}
+
+/* Check if there is pending and not masked out interrupt */
+static inline bool cpu_mips_hw_interrupts_pending(CPUMIPSState *env)
+{
+ int32_t pending;
+ int32_t status;
+ bool r;
pending = env->CP0_Cause & CP0Ca_IP_mask;
status = env->CP0_Status & CP0Ca_IP_mask;
/* A MIPS configured with compatibility or VInt (Vectored Interrupts)
treats the pending lines as individual interrupt lines, the status
lines are individual masks. */
- r = pending & status;
+ r = (pending & status) != 0;
}
return r;
}
*/
#define CPU_INTERRUPT_WAKE CPU_INTERRUPT_TGT_INT_0
-int cpu_mips_exec(CPUMIPSState *s);
+int cpu_mips_exec(CPUState *cpu);
void mips_tcg_init(void);
MIPSCPU *cpu_mips_init(const char *cpu_model);
int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
-static inline CPUMIPSState *cpu_init(const char *cpu_model)
-{
- MIPSCPU *cpu = cpu_mips_init(cpu_model);
- if (cpu == NULL) {
- return NULL;
- }
- return &cpu->env;
-}
+#define cpu_init(cpu_model) CPU(cpu_mips_init(cpu_model))
/* TODO QOM'ify CPU reset and remove */
void cpu_state_reset(CPUMIPSState *s);
&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 restore_pamask(CPUMIPSState *env)
+{
+ if (env->hflags & MIPS_HFLAG_ELPA) {
+ env->PAMask = (1ULL << env->PABITS) - 1;
+ } else {
+ env->PAMask = PAMASK_BASE;
+ }
+}
+
static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc,
target_ulong *cs_base, int *flags)
{
env->hflags &= ~(MIPS_HFLAG_COP1X | MIPS_HFLAG_64 | MIPS_HFLAG_CP0 |
MIPS_HFLAG_F64 | MIPS_HFLAG_FPU | MIPS_HFLAG_KSU |
MIPS_HFLAG_AWRAP | MIPS_HFLAG_DSP | MIPS_HFLAG_DSPR2 |
- MIPS_HFLAG_SBRI | MIPS_HFLAG_MSA);
+ MIPS_HFLAG_SBRI | MIPS_HFLAG_MSA | MIPS_HFLAG_FRE |
+ MIPS_HFLAG_ELPA);
if (!(env->CP0_Status & (1 << CP0St_EXL)) &&
!(env->CP0_Status & (1 << CP0St_ERL)) &&
!(env->hflags & MIPS_HFLAG_DM)) {
env->hflags |= MIPS_HFLAG_MSA;
}
}
+ if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
+ if (env->CP0_Config5 & (1 << CP0C5_FRE)) {
+ env->hflags |= MIPS_HFLAG_FRE;
+ }
+ }
+ if (env->CP0_Config3 & (1 << CP0C3_LPA)) {
+ if (env->CP0_PageGrain & (1 << CP0PG_ELPA)) {
+ env->hflags |= MIPS_HFLAG_ELPA;
+ }
+ }
}
#ifndef CONFIG_USER_ONLY
+static inline void cpu_mips_tlb_flush(CPUMIPSState *env, int flush_global)
+{
+ MIPSCPU *cpu = mips_env_get_cpu(env);
+
+ /* Flush qemu's TLB and discard all shadowed entries. */
+ tlb_flush(CPU(cpu), flush_global);
+ env->tlb->tlb_in_use = env->tlb->nb_tlb;
+}
+
/* Called for updates to CP0_Status. */
static inline void sync_c0_status(CPUMIPSState *env, CPUMIPSState *cpu, int tc)
{
static inline void cpu_mips_store_status(CPUMIPSState *env, target_ulong val)
{
uint32_t mask = env->CP0_Status_rw_bitmask;
+ target_ulong old = env->CP0_Status;
if (env->insn_flags & ISA_MIPS32R6) {
bool has_supervisor = extract32(mask, CP0St_KSU, 2) == 0x3;
-
+#if defined(TARGET_MIPS64)
+ uint32_t ksux = (1 << CP0St_KX) & val;
+ ksux |= (ksux >> 1) & val; /* KX = 0 forces SX to be 0 */
+ ksux |= (ksux >> 1) & val; /* SX = 0 forces UX to be 0 */
+ val = (val & ~(7 << CP0St_UX)) | ksux;
+#endif
if (has_supervisor && extract32(val, CP0St_KSU, 2) == 0x3) {
mask &= ~(3 << CP0St_KSU);
}
mask &= ~(((1 << CP0St_SR) | (1 << CP0St_NMI)) & val);
}
- env->CP0_Status = (env->CP0_Status & ~mask) | (val & mask);
+ env->CP0_Status = (old & ~mask) | (val & mask);
+#if defined(TARGET_MIPS64)
+ if ((env->CP0_Status ^ old) & (old & (7 << CP0St_UX))) {
+ /* Access to at least one of the 64-bit segments has been disabled */
+ cpu_mips_tlb_flush(env, 1);
+ }
+#endif
if (env->CP0_Config3 & (1 << CP0C3_MT)) {
sync_c0_status(env, env, env->current_tc);
} else {
}
#endif
+static inline void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env,
+ uint32_t exception,
+ int error_code,
+ uintptr_t pc)
+{
+ CPUState *cs = CPU(mips_env_get_cpu(env));
+
+ if (exception < EXCP_SC) {
+ qemu_log_mask(CPU_LOG_INT, "%s: %d %d\n",
+ __func__, exception, error_code);
+ }
+ cs->exception_index = exception;
+ env->error_code = error_code;
+
+ cpu_loop_exit_restore(cs, pc);
+}
+
+static inline void QEMU_NORETURN do_raise_exception(CPUMIPSState *env,
+ uint32_t exception,
+ uintptr_t pc)
+{
+ do_raise_exception_err(env, exception, 0, pc);
+}
+
#endif /* !defined (__MIPS_CPU_H__) */
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