| Message ID | 20230328030631.3117129-5-gaosong@loongson.cn |
|---|---|
| State | New |
| Headers | show |
| Series | Add LoongArch LSX instructions | expand |
On 3/27/23 20:05, Song Gao wrote: > --- a/target/loongarch/cpu.c > +++ b/target/loongarch/cpu.c > @@ -52,6 +52,7 @@ static const char * const excp_names[] = { > [EXCCODE_FPE] = "Floating Point Exception", > [EXCCODE_DBP] = "Debug breakpoint", > [EXCCODE_BCE] = "Bound Check Exception", > + [EXCCODE_SXD] = "128 bit vector instructions Disable exception", > }; > > const char *loongarch_exception_name(int32_t exception) > @@ -187,6 +188,7 @@ static void loongarch_cpu_do_interrupt(CPUState *cs) > case EXCCODE_FPD: > case EXCCODE_FPE: > case EXCCODE_BCE: > + case EXCCODE_ASXD: SXD? From what little documentation is present in Volume 1, ASXD appears to be for a 256-bit vector extension? r~
在 2023/3/29 上午3:42, Richard Henderson 写道: > On 3/27/23 20:05, Song Gao wrote: >> --- a/target/loongarch/cpu.c >> +++ b/target/loongarch/cpu.c >> @@ -52,6 +52,7 @@ static const char * const excp_names[] = { >> [EXCCODE_FPE] = "Floating Point Exception", >> [EXCCODE_DBP] = "Debug breakpoint", >> [EXCCODE_BCE] = "Bound Check Exception", >> + [EXCCODE_SXD] = "128 bit vector instructions Disable exception", >> }; >> const char *loongarch_exception_name(int32_t exception) >> @@ -187,6 +188,7 @@ static void loongarch_cpu_do_interrupt(CPUState *cs) >> case EXCCODE_FPD: >> case EXCCODE_FPE: >> case EXCCODE_BCE: >> + case EXCCODE_ASXD: > > SXD? > Oh, Should be SXD. > From what little documentation is present in Volume 1, ASXD appears to > be for a 256-bit vector extension? > Yes. Thanks. Song Gao
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index 2263bd4fdd..a3ce1ccf00 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -52,6 +52,7 @@ static const char * const excp_names[] = { [EXCCODE_FPE] = "Floating Point Exception", [EXCCODE_DBP] = "Debug breakpoint", [EXCCODE_BCE] = "Bound Check Exception", + [EXCCODE_SXD] = "128 bit vector instructions Disable exception", }; const char *loongarch_exception_name(int32_t exception) @@ -187,6 +188,7 @@ static void loongarch_cpu_do_interrupt(CPUState *cs) case EXCCODE_FPD: case EXCCODE_FPE: case EXCCODE_BCE: + case EXCCODE_ASXD: env->CSR_BADV = env->pc; QEMU_FALLTHROUGH; case EXCCODE_ADEM: diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index 6e5fa6a01d..2e5326f474 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -429,6 +429,7 @@ static inline int cpu_mmu_index(CPULoongArchState *env, bool ifetch) #define HW_FLAGS_PLV_MASK R_CSR_CRMD_PLV_MASK /* 0x03 */ #define HW_FLAGS_CRMD_PG R_CSR_CRMD_PG_MASK /* 0x10 */ #define HW_FLAGS_EUEN_FPE 0x04 +#define HW_FLAGS_EUEN_SXE 0x08 static inline void cpu_get_tb_cpu_state(CPULoongArchState *env, target_ulong *pc, @@ -439,6 +440,7 @@ static inline void cpu_get_tb_cpu_state(CPULoongArchState *env, *cs_base = 0; *flags = env->CSR_CRMD & (R_CSR_CRMD_PLV_MASK | R_CSR_CRMD_PG_MASK); *flags |= FIELD_EX64(env->CSR_EUEN, CSR_EUEN, FPE) * HW_FLAGS_EUEN_FPE; + *flags |= FIELD_EX64(env->CSR_EUEN, CSR_EUEN, SXE) * HW_FLAGS_EUEN_SXE; } void loongarch_cpu_list(void); diff --git a/target/loongarch/insn_trans/trans_lsx.c.inc b/target/loongarch/insn_trans/trans_lsx.c.inc index 1cf3ab34a9..5dedb044d7 100644 --- a/target/loongarch/insn_trans/trans_lsx.c.inc +++ b/target/loongarch/insn_trans/trans_lsx.c.inc @@ -3,3 +3,14 @@ * LSX translate functions * Copyright (c) 2022-2023 Loongson Technology Corporation Limited */ + +#ifndef CONFIG_USER_ONLY +#define CHECK_SXE do { \ + if ((ctx->base.tb->flags & HW_FLAGS_EUEN_SXE) == 0) { \ + generate_exception(ctx, EXCCODE_SXD); \ + return true; \ + } \ +} while (0) +#else +#define CHECK_SXE +#endif
Signed-off-by: Song Gao <gaosong@loongson.cn> --- target/loongarch/cpu.c | 2 ++ target/loongarch/cpu.h | 2 ++ target/loongarch/insn_trans/trans_lsx.c.inc | 11 +++++++++++ 3 files changed, 15 insertions(+)