From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: mark.cave-ayland@ilande.co.uk, atar4qemu@gmail.com
Subject: [PATCH 03/85] target/sparc: Remove always-set cpu features
Date: Fri, 13 Oct 2023 14:27:24 -0700 [thread overview]
Message-ID: <20231013212846.165724-4-richard.henderson@linaro.org> (raw)
In-Reply-To: <20231013212846.165724-1-richard.henderson@linaro.org>
The oldest supported cpu is the microsparc 1;
all other cpus use CPU_DEFAULT_FEATURES.
Remove all bits that are always set: FLOAT, SWAP, MUL, DIV,
FLUSH, FSQRT, FMUL.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/sparc/target_syscall.h | 6 +---
target/sparc/cpu.h | 50 +++++++++++--------------------
target/sparc/cpu.c | 8 ++---
target/sparc/translate.c | 16 ----------
4 files changed, 20 insertions(+), 60 deletions(-)
diff --git a/linux-user/sparc/target_syscall.h b/linux-user/sparc/target_syscall.h
index be77e44eb8..e421165357 100644
--- a/linux-user/sparc/target_syscall.h
+++ b/linux-user/sparc/target_syscall.h
@@ -50,11 +50,7 @@ static inline abi_ulong target_shmlba(CPUSPARCState *env)
#ifdef TARGET_SPARC64
return MAX(TARGET_PAGE_SIZE, 16 * 1024);
#else
- if (!(env->def.features & CPU_FEATURE_FLUSH)) {
- return 64 * 1024;
- } else {
- return 256 * 1024;
- }
+ return 256 * 1024;
#endif
}
diff --git a/target/sparc/cpu.h b/target/sparc/cpu.h
index 9fc5c401d2..bb8b65e47e 100644
--- a/target/sparc/cpu.h
+++ b/target/sparc/cpu.h
@@ -291,38 +291,24 @@ struct sparc_def_t {
uint32_t maxtl;
};
-#define CPU_FEATURE_FLOAT (1 << 0)
-#define CPU_FEATURE_FLOAT128 (1 << 1)
-#define CPU_FEATURE_SWAP (1 << 2)
-#define CPU_FEATURE_MUL (1 << 3)
-#define CPU_FEATURE_DIV (1 << 4)
-#define CPU_FEATURE_FLUSH (1 << 5)
-#define CPU_FEATURE_FSQRT (1 << 6)
-#define CPU_FEATURE_FMUL (1 << 7)
-#define CPU_FEATURE_VIS1 (1 << 8)
-#define CPU_FEATURE_VIS2 (1 << 9)
-#define CPU_FEATURE_FSMULD (1 << 10)
-#define CPU_FEATURE_HYPV (1 << 11)
-#define CPU_FEATURE_CMT (1 << 12)
-#define CPU_FEATURE_GL (1 << 13)
-#define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */
-#define CPU_FEATURE_ASR17 (1 << 15)
-#define CPU_FEATURE_CACHE_CTRL (1 << 16)
-#define CPU_FEATURE_POWERDOWN (1 << 17)
-#define CPU_FEATURE_CASA (1 << 18)
+#define CPU_FEATURE_FLOAT128 (1 << 0)
+#define CPU_FEATURE_VIS1 (1 << 1)
+#define CPU_FEATURE_VIS2 (1 << 2)
+#define CPU_FEATURE_FSMULD (1 << 3)
+#define CPU_FEATURE_HYPV (1 << 4)
+#define CPU_FEATURE_CMT (1 << 5)
+#define CPU_FEATURE_GL (1 << 6)
+#define CPU_FEATURE_TA0_SHUTDOWN (1 << 7) /* Shutdown on "ta 0x0" */
+#define CPU_FEATURE_ASR17 (1 << 8)
+#define CPU_FEATURE_CACHE_CTRL (1 << 9)
+#define CPU_FEATURE_POWERDOWN (1 << 10)
+#define CPU_FEATURE_CASA (1 << 11)
#ifndef TARGET_SPARC64
-#define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \
- CPU_FEATURE_MUL | CPU_FEATURE_DIV | \
- CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
- CPU_FEATURE_FMUL | CPU_FEATURE_FSMULD)
+#define CPU_DEFAULT_FEATURES CPU_FEATURE_FSMULD
#else
-#define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \
- CPU_FEATURE_MUL | CPU_FEATURE_DIV | \
- CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT | \
- CPU_FEATURE_FMUL | CPU_FEATURE_VIS1 | \
- CPU_FEATURE_VIS2 | CPU_FEATURE_FSMULD | \
- CPU_FEATURE_CASA)
+#define CPU_DEFAULT_FEATURES (CPU_FEATURE_VIS1 | CPU_FEATURE_VIS2 | \
+ CPU_FEATURE_FSMULD | CPU_FEATURE_CASA)
enum {
mmu_us_12, // Ultrasparc < III (64 entry TLB)
mmu_us_3, // Ultrasparc III (512 entry TLB)
@@ -805,14 +791,12 @@ static inline void cpu_get_tb_cpu_state(CPUSPARCState *env, vaddr *pc,
if (env->pstate & PS_AM) {
flags |= TB_FLAG_AM_ENABLED;
}
- if ((env->def.features & CPU_FEATURE_FLOAT)
- && (env->pstate & PS_PEF)
- && (env->fprs & FPRS_FEF)) {
+ if ((env->pstate & PS_PEF) && (env->fprs & FPRS_FEF)) {
flags |= TB_FLAG_FPU_ENABLED;
}
flags |= env->asi << TB_FLAG_ASI_SHIFT;
#else
- if ((env->def.features & CPU_FEATURE_FLOAT) && env->psref) {
+ if (env->psref) {
flags |= TB_FLAG_FPU_ENABLED;
}
#endif
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c
index 8ba96ae225..117800d670 100644
--- a/target/sparc/cpu.c
+++ b/target/sparc/cpu.c
@@ -403,9 +403,7 @@ static const sparc_def_t sparc_defs[] = {
.mmu_sfsr_mask = 0x00016fff,
.mmu_trcr_mask = 0x0000003f,
.nwindows = 7,
- .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_MUL |
- CPU_FEATURE_DIV | CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT |
- CPU_FEATURE_FMUL,
+ .features = 0,
},
{
.name = "TI MicroSparc II",
@@ -757,9 +755,7 @@ static void sparc_cpu_realizefn(DeviceState *dev, Error **errp)
CPUSPARCState *env = &cpu->env;
#if defined(CONFIG_USER_ONLY)
- if ((env->def.features & CPU_FEATURE_FLOAT)) {
- env->def.features |= CPU_FEATURE_FLOAT128;
- }
+ env->def.features |= CPU_FEATURE_FLOAT128;
#endif
env->version = env->def.iu_version;
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index f92ff80ac8..7405173dea 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -3488,11 +3488,9 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
gen_ne_fop_FF(dc, rd, rs2, gen_helper_fabss);
break;
case 0x29: /* fsqrts */
- CHECK_FPU_FEATURE(dc, FSQRT);
gen_fop_FF(dc, rd, rs2, gen_helper_fsqrts);
break;
case 0x2a: /* fsqrtd */
- CHECK_FPU_FEATURE(dc, FSQRT);
gen_fop_DD(dc, rd, rs2, gen_helper_fsqrtd);
break;
case 0x2b: /* fsqrtq */
@@ -3520,16 +3518,13 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
gen_fop_QQQ(dc, rd, rs1, rs2, gen_helper_fsubq);
break;
case 0x49: /* fmuls */
- CHECK_FPU_FEATURE(dc, FMUL);
gen_fop_FFF(dc, rd, rs1, rs2, gen_helper_fmuls);
break;
case 0x4a: /* fmuld */
- CHECK_FPU_FEATURE(dc, FMUL);
gen_fop_DDD(dc, rd, rs1, rs2, gen_helper_fmuld);
break;
case 0x4b: /* fmulq */
CHECK_FPU_FEATURE(dc, FLOAT128);
- CHECK_FPU_FEATURE(dc, FMUL);
gen_fop_QQQ(dc, rd, rs1, rs2, gen_helper_fmulq);
break;
case 0x4d: /* fdivs */
@@ -3979,7 +3974,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
break;
#endif
case 0xa: /* umul */
- CHECK_IU_FEATURE(dc, MUL);
gen_op_umul(cpu_dst, cpu_src1, cpu_src2);
if (xop & 0x10) {
tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);
@@ -3988,7 +3982,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
}
break;
case 0xb: /* smul */
- CHECK_IU_FEATURE(dc, MUL);
gen_op_smul(cpu_dst, cpu_src1, cpu_src2);
if (xop & 0x10) {
tcg_gen_mov_tl(cpu_cc_dst, cpu_dst);
@@ -4006,7 +3999,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
break;
#endif
case 0xe: /* udiv */
- CHECK_IU_FEATURE(dc, DIV);
if (xop & 0x10) {
gen_helper_udiv_cc(cpu_dst, tcg_env, cpu_src1,
cpu_src2);
@@ -4017,7 +4009,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
}
break;
case 0xf: /* sdiv */
- CHECK_IU_FEATURE(dc, DIV);
if (xop & 0x10) {
gen_helper_sdiv_cc(cpu_dst, tcg_env, cpu_src1,
cpu_src2);
@@ -5069,8 +5060,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
goto jmp_insn;
#endif
case 0x3b: /* flush */
- if (!((dc)->def->features & CPU_FEATURE_FLUSH))
- goto unimp_flush;
/* nop */
break;
case 0x3c: /* save */
@@ -5188,7 +5177,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
break;
case 0x0f:
/* swap, swap register with memory. Also atomically */
- CHECK_IU_FEATURE(dc, SWAP);
cpu_src1 = gen_load_gpr(dc, rd);
gen_swap(dc, cpu_val, cpu_src1, cpu_addr,
dc->mem_idx, MO_TEUL);
@@ -5220,7 +5208,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
break;
case 0x1f: /* swapa, swap reg with alt. memory. Also
atomically */
- CHECK_IU_FEATURE(dc, SWAP);
cpu_src1 = gen_load_gpr(dc, rd);
gen_swap_asi(dc, cpu_val, cpu_src1, cpu_addr, insn);
break;
@@ -5542,9 +5529,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
illegal_insn:
gen_exception(dc, TT_ILL_INSN);
return;
- unimp_flush:
- gen_exception(dc, TT_UNIMP_FLUSH);
- return;
#if !defined(CONFIG_USER_ONLY)
priv_insn:
gen_exception(dc, TT_PRIV_INSN);
--
2.34.1
next prev parent reply other threads:[~2023-10-13 21:34 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-13 21:27 [PATCH 00/85] target/sparc: Convert to decodetree Richard Henderson
2023-10-13 21:27 ` [PATCH 01/85] target/sparc: Set TCG_GUEST_DEFAULT_MO Richard Henderson
2023-10-16 6:46 ` Philippe Mathieu-Daudé
2023-10-13 21:27 ` [PATCH 02/85] configs: Enable MTTCG for sparc, sparc64 Richard Henderson
2023-10-13 21:27 ` Richard Henderson [this message]
2023-10-15 16:53 ` [PATCH 03/85] target/sparc: Remove always-set cpu features Richard Henderson
2023-10-13 21:27 ` [PATCH 04/85] target/sparc: Add decodetree infrastructure Richard Henderson
2023-10-13 21:27 ` [PATCH 05/85] target/sparc: Define AM_CHECK for sparc32 Richard Henderson
2023-10-13 21:27 ` [PATCH 06/85] target/sparc: Move CALL to decodetree Richard Henderson
2023-10-13 21:27 ` [PATCH 07/85] target/sparc: Move BPcc and Bicc " Richard Henderson
2023-10-13 21:27 ` [PATCH 08/85] target/sparc: Move BPr " Richard Henderson
2023-10-13 21:27 ` [PATCH 09/85] target/sparc: Move FBPfcc and FBfcc " Richard Henderson
2025-01-26 9:38 ` Artyom Tarasenko
2025-01-26 12:25 ` Richard Henderson
2023-10-13 21:27 ` [PATCH 10/85] target/sparc: Merge gen_cond with only caller Richard Henderson
2023-10-16 6:52 ` Philippe Mathieu-Daudé
2023-10-13 21:27 ` [PATCH 11/85] target/sparc: Merge gen_fcond " Richard Henderson
2023-10-16 6:52 ` Philippe Mathieu-Daudé
2023-10-13 21:27 ` [PATCH 12/85] target/sparc: Merge gen_branch_[an] " Richard Henderson
2023-10-13 21:27 ` [PATCH 13/85] target/sparc: Pass DisasCompare to advance_jump_cond Richard Henderson
2023-10-13 21:27 ` [PATCH 14/85] target/sparc: Move SETHI to decodetree Richard Henderson
2023-10-13 21:27 ` [PATCH 15/85] target/sparc: Move Tcc " Richard Henderson
2023-10-13 21:27 ` [PATCH 16/85] target/sparc: Move RDASR, STBAR, MEMBAR " Richard Henderson
2023-10-13 21:27 ` [PATCH 17/85] target/sparc: Move RDPSR, RDHPR " Richard Henderson
2023-10-13 21:27 ` [PATCH 18/85] target/sparc: Move RDWIM, RDPR " Richard Henderson
2023-10-13 21:27 ` [PATCH 19/85] target/sparc: Move RDTBR, FLUSHW " Richard Henderson
2023-10-13 21:27 ` [PATCH 20/85] target/sparc: Move WRASR " Richard Henderson
2023-10-13 21:27 ` [PATCH 21/85] target/sparc: Move WRPSR, SAVED, RESTORED " Richard Henderson
2023-10-13 21:27 ` [PATCH 22/85] target/sparc: Move WRWIM, WRPR " Richard Henderson
2023-10-13 21:27 ` [PATCH 23/85] target/sparc: Move WRTBR, WRHPR " Richard Henderson
2023-10-13 21:27 ` [PATCH 24/85] target/sparc: Move basic arithmetic " Richard Henderson
2023-10-13 21:27 ` [PATCH 25/85] target/sparc: Move ADDC " Richard Henderson
2023-10-13 21:27 ` [PATCH 26/85] target/sparc: Move MULX " Richard Henderson
2023-10-13 21:27 ` [PATCH 27/85] target/sparc: Move UMUL, SMUL " Richard Henderson
2023-10-13 21:27 ` [PATCH 28/85] target/sparc: Move SUBC " Richard Henderson
2023-10-13 21:27 ` [PATCH 29/85] target/sparc: Move UDIVX, SDIVX " Richard Henderson
2023-10-13 21:27 ` [PATCH 30/85] target/sparc: Move UDIV, SDIV " Richard Henderson
2023-10-13 21:27 ` [PATCH 31/85] target/sparc: Move TADD, TSUB, MULS " Richard Henderson
2023-10-13 21:27 ` [PATCH 32/85] target/sparc: Move SLL, SRL, SRA " Richard Henderson
2023-10-13 21:27 ` [PATCH 33/85] target/sparc: Move MOVcc, MOVR " Richard Henderson
2023-10-13 21:27 ` [PATCH 34/85] target/sparc: Move POPC " Richard Henderson
2023-10-13 21:27 ` [PATCH 35/85] target/sparc: Convert remaining v8 coproc insns " Richard Henderson
2023-10-13 21:27 ` [PATCH 36/85] target/sparc: Move JMPL, RETT, RETURN " Richard Henderson
2023-10-13 21:27 ` [PATCH 37/85] target/sparc: Move FLUSH, SAVE, RESTORE " Richard Henderson
2023-10-13 21:27 ` [PATCH 38/85] target/sparc: Move DONE, RETRY " Richard Henderson
2023-10-13 21:28 ` [PATCH 39/85] target/sparc: Split out resolve_asi Richard Henderson
2023-10-13 21:28 ` [PATCH 40/85] target/sparc: Drop ifdef around get_asi and friends Richard Henderson
2023-10-13 21:28 ` [PATCH 41/85] target/sparc: Split out ldst functions with asi pre-computed Richard Henderson
2023-10-13 21:28 ` [PATCH 42/85] target/sparc: Use tcg_gen_qemu_{ld, st}_i128 for GET_ASI_DTWINX Richard Henderson
2023-10-13 21:28 ` [PATCH 43/85] target/sparc: Move simple integer load/store to decodetree Richard Henderson
2023-10-13 21:28 ` [PATCH 44/85] target/sparc: Move asi " Richard Henderson
2023-10-13 21:28 ` [PATCH 45/85] target/sparc: Move LDSTUB, LDSTUBA " Richard Henderson
2023-10-13 21:28 ` [PATCH 46/85] target/sparc: Move SWAP, SWAPA " Richard Henderson
2023-10-13 21:28 ` [PATCH 47/85] target/sparc: Move CASA, CASXA " Richard Henderson
2023-10-13 21:28 ` [PATCH 48/85] target/sparc: Move PREFETCH, PREFETCHA " Richard Henderson
2023-10-13 21:28 ` [PATCH 49/85] target/sparc: Split out fp ldst functions with asi precomputed Richard Henderson
2023-10-13 21:28 ` [PATCH 50/85] target/sparc: Move simple fp load/store to decodetree Richard Henderson
2023-10-13 21:28 ` [PATCH 51/85] target/sparc: Move asi " Richard Henderson
2023-10-13 21:28 ` [PATCH 52/85] target/sparc: Move LDFSR, STFSR " Richard Henderson
2023-10-13 21:28 ` [PATCH 53/85] target/sparc: Merge LDFSR, LDXFSR implementations Richard Henderson
2023-10-13 21:28 ` [PATCH 54/85] target/sparc: Move EDGE* to decodetree Richard Henderson
2023-10-13 21:28 ` [PATCH 55/85] target/sparc: Move ARRAY* " Richard Henderson
2023-10-13 21:28 ` [PATCH 56/85] target/sparc: Move ADDRALIGN* " Richard Henderson
2023-10-13 21:28 ` [PATCH 57/85] target/sparc: Move BMASK " Richard Henderson
2023-10-13 21:28 ` [PATCH 58/85] target/sparc: Move FMOVS, FNEGS, FABSS, FSRC*S, FNOT*S " Richard Henderson
2023-10-13 21:28 ` [PATCH 59/85] target/sparc: Move FMOVD, FNEGD, FABSD, FSRC*D, FNOT*D " Richard Henderson
2023-10-13 21:28 ` [PATCH 60/85] target/sparc: Use tcg_gen_vec_{add,sub}* Richard Henderson
2023-10-13 21:28 ` [PATCH 61/85] target/sparc: Move gen_ne_fop_FFF insns to decodetree Richard Henderson
2023-10-13 21:28 ` [PATCH 62/85] target/sparc: Move gen_ne_fop_DDD " Richard Henderson
2023-10-13 21:28 ` [PATCH 63/85] target/sparc: Move PDIST " Richard Henderson
2023-10-13 21:28 ` [PATCH 64/85] target/sparc: Move gen_gsr_fop_DDD insns " Richard Henderson
2023-10-13 21:28 ` [PATCH 65/85] target/sparc: Move gen_fop_FF " Richard Henderson
2023-10-13 21:28 ` [PATCH 66/85] target/sparc: Move gen_fop_DD " Richard Henderson
2023-10-13 21:28 ` [PATCH 67/85] target/sparc: Move FSQRTq " Richard Henderson
2023-10-13 21:28 ` [PATCH 68/85] target/sparc: Move gen_fop_FFF insns " Richard Henderson
2023-10-13 21:28 ` [PATCH 69/85] target/sparc: Move gen_fop_DDD " Richard Henderson
2023-10-13 21:28 ` [PATCH 70/85] target/sparc: Move gen_fop_QQQ " Richard Henderson
2023-10-13 21:28 ` [PATCH 71/85] target/sparc: Move FSMULD " Richard Henderson
2023-10-13 21:28 ` [PATCH 72/85] target/sparc: Move FDMULQ " Richard Henderson
2023-10-13 21:28 ` [PATCH 73/85] target/sparc: Move gen_fop_FD insns " Richard Henderson
2023-10-13 21:28 ` [PATCH 74/85] target/sparc: Move FiTOd, FsTOd, FsTOx " Richard Henderson
2023-10-13 21:28 ` [PATCH 75/85] target/sparc: Move FqTOs, FqTOi " Richard Henderson
2023-10-13 21:28 ` [PATCH 76/85] target/sparc: Move FqTOd, FqTOx " Richard Henderson
2023-10-13 21:28 ` [PATCH 77/85] target/sparc: Move FiTOq, FsTOq " Richard Henderson
2023-10-13 21:28 ` [PATCH 78/85] target/sparc: Move FdTOq, FxTOq " Richard Henderson
2023-10-13 21:28 ` [PATCH 79/85] target/sparc: Move FMOVq, FNEGq, FABSq " Richard Henderson
2023-10-13 21:28 ` [PATCH 80/85] target/sparc: Move FMOVR, FMOVcc, FMOVfcc " Richard Henderson
2023-10-13 21:28 ` [PATCH 81/85] target/sparc: Convert FCMP, FCMPE " Richard Henderson
2023-10-13 21:28 ` [PATCH 82/85] target/sparc: Move FPCMP* " Richard Henderson
2023-10-13 21:28 ` [PATCH 83/85] target/sparc: Move FPACK16, FPACKFIX " Richard Henderson
2023-10-13 21:28 ` [PATCH 84/85] target/sparc: Convert FZERO, FONE " Richard Henderson
2023-10-13 21:28 ` [PATCH 85/85] target/sparc: Remove disas_sparc_legacy Richard Henderson
2023-10-14 6:32 ` [PATCH 00/85] target/sparc: Convert to decodetree Mark Cave-Ayland
2023-10-15 20:12 ` Mark Cave-Ayland
2023-10-15 22:38 ` Richard Henderson
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