diff options
Diffstat (limited to 'linux-user/loongarch64/signal.c')
| -rw-r--r-- | linux-user/loongarch64/signal.c | 189 |
1 files changed, 156 insertions, 33 deletions
diff --git a/linux-user/loongarch64/signal.c b/linux-user/loongarch64/signal.c index afcee641a6..39ea82c814 100644 --- a/linux-user/loongarch64/signal.c +++ b/linux-user/loongarch64/signal.c @@ -18,10 +18,10 @@ #define SC_USED_FP (1 << 0) struct target_sigcontext { - uint64_t sc_pc; - uint64_t sc_regs[32]; - uint32_t sc_flags; - uint64_t sc_extcontext[0] QEMU_ALIGNED(16); + abi_ulong sc_pc; + abi_ulong sc_regs[32]; + abi_uint sc_flags; + abi_ulong sc_extcontext[0] QEMU_ALIGNED(16); }; QEMU_BUILD_BUG_ON(sizeof(struct target_sigcontext) != sizeof_sigcontext); @@ -33,19 +33,35 @@ QEMU_BUILD_BUG_ON(offsetof(struct target_sigcontext, sc_regs) #define FPU_CTX_MAGIC 0x46505501 #define FPU_CTX_ALIGN 8 struct target_fpu_context { - uint64_t regs[32]; - uint64_t fcc; - uint32_t fcsr; + abi_ulong regs[32]; + abi_ulong fcc; + abi_uint fcsr; } QEMU_ALIGNED(FPU_CTX_ALIGN); QEMU_BUILD_BUG_ON(offsetof(struct target_fpu_context, regs) != offsetof_fpucontext_fr); +#define LSX_CTX_MAGIC 0x53580001 +#define LSX_CTX_ALIGN 16 +struct target_lsx_context { + abi_ulong regs[2 * 32]; + abi_ulong fcc; + abi_uint fcsr; +} QEMU_ALIGNED(LSX_CTX_ALIGN); + +#define LASX_CTX_MAGIC 0x41535801 +#define LASX_CTX_ALIGN 32 +struct target_lasx_context { + abi_ulong regs[4 * 32]; + abi_ulong fcc; + abi_uint fcsr; +} QEMU_ALIGNED(LASX_CTX_ALIGN); + #define CONTEXT_INFO_ALIGN 16 struct target_sctx_info { - uint32_t magic; - uint32_t size; - uint64_t padding; + abi_uint magic; + abi_uint size; + abi_ulong padding; } QEMU_ALIGNED(CONTEXT_INFO_ALIGN); QEMU_BUILD_BUG_ON(sizeof(struct target_sctx_info) != sizeof_sctx_info); @@ -81,9 +97,11 @@ struct ctx_layout { }; struct extctx_layout { - unsigned int size; + unsigned long size; unsigned int flags; struct ctx_layout fpu; + struct ctx_layout lsx; + struct ctx_layout lasx; struct ctx_layout end; }; @@ -105,7 +123,8 @@ static abi_ptr extframe_alloc(struct extctx_layout *extctx, return sp; } -static abi_ptr setup_extcontext(struct extctx_layout *extctx, abi_ptr sp) +static abi_ptr setup_extcontext(CPULoongArchState *env, + struct extctx_layout *extctx, abi_ptr sp) { memset(extctx, 0, sizeof(struct extctx_layout)); @@ -114,8 +133,17 @@ static abi_ptr setup_extcontext(struct extctx_layout *extctx, abi_ptr sp) /* For qemu, there is no lazy fp context switch, so fp always present. */ extctx->flags = SC_USED_FP; - sp = extframe_alloc(extctx, &extctx->fpu, - sizeof(struct target_rt_sigframe), FPU_CTX_ALIGN, sp); + + if (FIELD_EX64(env->CSR_EUEN, CSR_EUEN, ASXE)) { + sp = extframe_alloc(extctx, &extctx->lasx, + sizeof(struct target_lasx_context), LASX_CTX_ALIGN, sp); + } else if (FIELD_EX64(env->CSR_EUEN, CSR_EUEN, SXE)) { + sp = extframe_alloc(extctx, &extctx->lsx, + sizeof(struct target_lsx_context), LSX_CTX_ALIGN, sp); + } else { + sp = extframe_alloc(extctx, &extctx->fpu, + sizeof(struct target_fpu_context), FPU_CTX_ALIGN, sp); + } return sp; } @@ -125,7 +153,6 @@ static void setup_sigframe(CPULoongArchState *env, struct extctx_layout *extctx) { struct target_sctx_info *info; - struct target_fpu_context *fpu_ctx; int i; __put_user(extctx->flags, &sc->sc_flags); @@ -136,25 +163,63 @@ static void setup_sigframe(CPULoongArchState *env, } /* - * Set fpu context + * Set extension context */ - info = extctx->fpu.haddr; - __put_user(FPU_CTX_MAGIC, &info->magic); - __put_user(extctx->fpu.size, &info->size); - fpu_ctx = (struct target_fpu_context *)(info + 1); - for (i = 0; i < 32; ++i) { - __put_user(env->fpr[i].vreg.D(0), &fpu_ctx->regs[i]); + if (FIELD_EX64(env->CSR_EUEN, CSR_EUEN, ASXE)) { + struct target_lasx_context *lasx_ctx; + info = extctx->lasx.haddr; + + __put_user(LASX_CTX_MAGIC, &info->magic); + __put_user(extctx->lasx.size, &info->size); + + lasx_ctx = (struct target_lasx_context *)(info + 1); + + for (i = 0; i < 32; ++i) { + __put_user(env->fpr[i].vreg.UD(0), &lasx_ctx->regs[4 * i]); + __put_user(env->fpr[i].vreg.UD(1), &lasx_ctx->regs[4 * i + 1]); + __put_user(env->fpr[i].vreg.UD(2), &lasx_ctx->regs[4 * i + 2]); + __put_user(env->fpr[i].vreg.UD(3), &lasx_ctx->regs[4 * i + 3]); + } + __put_user(read_fcc(env), &lasx_ctx->fcc); + __put_user(env->fcsr0, &lasx_ctx->fcsr); + } else if (FIELD_EX64(env->CSR_EUEN, CSR_EUEN, SXE)) { + struct target_lsx_context *lsx_ctx; + info = extctx->lsx.haddr; + + __put_user(LSX_CTX_MAGIC, &info->magic); + __put_user(extctx->lsx.size, &info->size); + + lsx_ctx = (struct target_lsx_context *)(info + 1); + + for (i = 0; i < 32; ++i) { + __put_user(env->fpr[i].vreg.UD(0), &lsx_ctx->regs[2 * i]); + __put_user(env->fpr[i].vreg.UD(1), &lsx_ctx->regs[2 * i + 1]); + } + __put_user(read_fcc(env), &lsx_ctx->fcc); + __put_user(env->fcsr0, &lsx_ctx->fcsr); + } else { + struct target_fpu_context *fpu_ctx; + info = extctx->fpu.haddr; + + __put_user(FPU_CTX_MAGIC, &info->magic); + __put_user(extctx->fpu.size, &info->size); + + fpu_ctx = (struct target_fpu_context *)(info + 1); + + for (i = 0; i < 32; ++i) { + __put_user(env->fpr[i].vreg.UD(0), &fpu_ctx->regs[i]); + } + __put_user(read_fcc(env), &fpu_ctx->fcc); + __put_user(env->fcsr0, &fpu_ctx->fcsr); } - __put_user(read_fcc(env), &fpu_ctx->fcc); - __put_user(env->fcsr0, &fpu_ctx->fcsr); /* * Set end context */ info = extctx->end.haddr; __put_user(0, &info->magic); - __put_user(extctx->end.size, &info->size); + __put_user(0, &info->size); } static bool parse_extcontext(struct extctx_layout *extctx, abi_ptr frame) @@ -162,7 +227,7 @@ static bool parse_extcontext(struct extctx_layout *extctx, abi_ptr frame) memset(extctx, 0, sizeof(*extctx)); while (1) { - uint32_t magic, size; + abi_uint magic, size; if (get_user_u32(magic, frame) || get_user_u32(size, frame + 4)) { return false; @@ -184,6 +249,24 @@ static bool parse_extcontext(struct extctx_layout *extctx, abi_ptr frame) extctx->fpu.size = size; extctx->size += size; break; + case LSX_CTX_MAGIC: + if (size < (sizeof(struct target_sctx_info) + + sizeof(struct target_lsx_context))) { + return false; + } + extctx->lsx.gaddr = frame; + extctx->lsx.size = size; + extctx->size += size; + break; + case LASX_CTX_MAGIC: + if (size < (sizeof(struct target_sctx_info) + + sizeof(struct target_lasx_context))) { + return false; + } + extctx->lasx.gaddr = frame; + extctx->lasx.size = size; + extctx->size += size; + break; default: return false; } @@ -197,19 +280,45 @@ static void restore_sigframe(CPULoongArchState *env, struct extctx_layout *extctx) { int i; + abi_ulong fcc; __get_user(env->pc, &sc->sc_pc); for (i = 1; i < 32; ++i) { __get_user(env->gpr[i], &sc->sc_regs[i]); } - if (extctx->fpu.haddr) { + if (extctx->lasx.haddr) { + struct target_lasx_context *lasx_ctx = + extctx->lasx.haddr + sizeof(struct target_sctx_info); + + for (i = 0; i < 32; ++i) { + __get_user(env->fpr[i].vreg.UD(0), &lasx_ctx->regs[4 * i]); + __get_user(env->fpr[i].vreg.UD(1), &lasx_ctx->regs[4 * i + 1]); + __get_user(env->fpr[i].vreg.UD(2), &lasx_ctx->regs[4 * i + 2]); + __get_user(env->fpr[i].vreg.UD(3), &lasx_ctx->regs[4 * i + 3]); + } + __get_user(fcc, &lasx_ctx->fcc); + write_fcc(env, fcc); + __get_user(env->fcsr0, &lasx_ctx->fcsr); + restore_fp_status(env); + } else if (extctx->lsx.haddr) { + struct target_lsx_context *lsx_ctx = + extctx->lsx.haddr + sizeof(struct target_sctx_info); + + for (i = 0; i < 32; ++i) { + __get_user(env->fpr[i].vreg.UD(0), &lsx_ctx->regs[2 * i]); + __get_user(env->fpr[i].vreg.UD(1), &lsx_ctx->regs[2 * i + 1]); + } + __get_user(fcc, &lsx_ctx->fcc); + write_fcc(env, fcc); + __get_user(env->fcsr0, &lsx_ctx->fcsr); + restore_fp_status(env); + } else if (extctx->fpu.haddr) { struct target_fpu_context *fpu_ctx = extctx->fpu.haddr + sizeof(struct target_sctx_info); - uint64_t fcc; for (i = 0; i < 32; ++i) { - __get_user(env->fpr[i].vreg.D(0), &fpu_ctx->regs[i]); + __get_user(env->fpr[i].vreg.UD(0), &fpu_ctx->regs[i]); } __get_user(fcc, &fpu_ctx->fcc); write_fcc(env, fcc); @@ -229,7 +338,7 @@ static abi_ptr get_sigframe(struct target_sigaction *ka, sp = target_sigsp(get_sp_from_cpustate(env), ka); sp = ROUND_DOWN(sp, 16); - sp = setup_extcontext(extctx, sp); + sp = setup_extcontext(env, extctx, sp); sp -= sizeof(struct target_rt_sigframe); assert(QEMU_IS_ALIGNED(sp, 16)); @@ -255,8 +364,17 @@ void setup_rt_frame(int sig, struct target_sigaction *ka, force_sigsegv(sig); return; } - extctx.fpu.haddr = (void *)frame + (extctx.fpu.gaddr - frame_addr); - extctx.end.haddr = (void *)frame + (extctx.end.gaddr - frame_addr); + + if (FIELD_EX64(env->CSR_EUEN, CSR_EUEN, ASXE)) { + extctx.lasx.haddr = (void *)frame + (extctx.lasx.gaddr - frame_addr); + extctx.end.haddr = (void *)frame + (extctx.end.gaddr - frame_addr); + } else if (FIELD_EX64(env->CSR_EUEN, CSR_EUEN, SXE)) { + extctx.lsx.haddr = (void *)frame + (extctx.lsx.gaddr - frame_addr); + extctx.end.haddr = (void *)frame + (extctx.end.gaddr - frame_addr); + } else { + extctx.fpu.haddr = (void *)frame + (extctx.fpu.gaddr - frame_addr); + extctx.end.haddr = (void *)frame + (extctx.end.gaddr - frame_addr); + } tswap_siginfo(&frame->rs_info, info); @@ -299,7 +417,12 @@ long do_rt_sigreturn(CPULoongArchState *env) if (!frame) { goto badframe; } - if (extctx.fpu.gaddr) { + + if (extctx.lasx.gaddr) { + extctx.lasx.haddr = (void *)frame + (extctx.lasx.gaddr - frame_addr); + } else if (extctx.lsx.gaddr) { + extctx.lsx.haddr = (void *)frame + (extctx.lsx.gaddr - frame_addr); + } else if (extctx.fpu.gaddr) { extctx.fpu.haddr = (void *)frame + (extctx.fpu.gaddr - frame_addr); } |