From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:45509) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gkXV7-0003YC-9J for qemu-devel@nongnu.org; Fri, 18 Jan 2019 12:00:21 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gkXV5-00076k-9B for qemu-devel@nongnu.org; Fri, 18 Jan 2019 12:00:13 -0500 Received: from mx2.rt-rk.com ([89.216.37.149]:52910 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gkXV3-0006pg-4B for qemu-devel@nongnu.org; Fri, 18 Jan 2019 12:00:11 -0500 From: Aleksandar Markovic Date: Fri, 18 Jan 2019 17:59:38 +0100 Message-Id: <1547830785-7079-6-git-send-email-aleksandar.markovic@rt-rk.com> In-Reply-To: <1547830785-7079-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1547830785-7079-1-git-send-email-aleksandar.markovic@rt-rk.com> Subject: [Qemu-devel] [PULL v2 05/12] target/mips: Provide R/W access to SAARI and SAAR CP0 registers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, amarkovic@wavecomp.com From: Yongbok Kim Provide R/W access to SAARI and SAAR CP0 registers. Reviewed-by: Stefan Markovic Signed-off-by: Yongbok Kim Signed-off-by: Aleksandar Markovic --- target/mips/cpu.h | 1 + target/mips/helper.h | 6 +++++ target/mips/internal.h | 1 + target/mips/op_helper.c | 50 +++++++++++++++++++++++++++++++++++++ target/mips/translate.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++--- 5 files changed, 120 insertions(+), 4 deletions(-) diff --git a/target/mips/cpu.h b/target/mips/cpu.h index 1c2c682..185702d 100644 --- a/target/mips/cpu.h +++ b/target/mips/cpu.h @@ -901,6 +901,7 @@ struct CPUMIPSState { uint32_t CP0_Status_rw_bitmask; /* Read/write bits in CP0_Status */ uint32_t CP0_TCStatus_rw_bitmask; /* Read/write bits in CP0_TCStatus */ uint64_t insn_flags; /* Supported instruction set */ + int saarp; /* Fields up to this point are cleared by a CPU reset */ struct {} end_reset_fields; diff --git a/target/mips/helper.h b/target/mips/helper.h index c23e4e5..8872c46 100644 --- a/target/mips/helper.h +++ b/target/mips/helper.h @@ -65,6 +65,8 @@ DEF_HELPER_1(mftc0_tcschedule, tl, env) DEF_HELPER_1(mfc0_tcschefback, tl, env) DEF_HELPER_1(mftc0_tcschefback, tl, env) DEF_HELPER_1(mfc0_count, tl, env) +DEF_HELPER_1(mfc0_saar, tl, env) +DEF_HELPER_1(mfhc0_saar, tl, env) DEF_HELPER_1(mftc0_entryhi, tl, env) DEF_HELPER_1(mftc0_status, tl, env) DEF_HELPER_1(mftc0_cause, tl, env) @@ -87,6 +89,7 @@ DEF_HELPER_1(dmfc0_tcschefback, tl, env) DEF_HELPER_1(dmfc0_lladdr, tl, env) DEF_HELPER_1(dmfc0_maar, tl, env) DEF_HELPER_2(dmfc0_watchlo, tl, env, i32) +DEF_HELPER_1(dmfc0_saar, tl, env) #endif /* TARGET_MIPS64 */ DEF_HELPER_2(mtc0_index, void, env, tl) @@ -131,6 +134,9 @@ DEF_HELPER_2(mtc0_srsconf4, void, env, tl) DEF_HELPER_2(mtc0_hwrena, void, env, tl) DEF_HELPER_2(mtc0_pwctl, void, env, tl) DEF_HELPER_2(mtc0_count, void, env, tl) +DEF_HELPER_2(mtc0_saari, void, env, tl) +DEF_HELPER_2(mtc0_saar, void, env, tl) +DEF_HELPER_2(mthc0_saar, void, env, tl) DEF_HELPER_2(mtc0_entryhi, void, env, tl) DEF_HELPER_2(mttc0_entryhi, void, env, tl) DEF_HELPER_2(mtc0_compare, void, env, tl) diff --git a/target/mips/internal.h b/target/mips/internal.h index 8b1b245..8f6fc91 100644 --- a/target/mips/internal.h +++ b/target/mips/internal.h @@ -61,6 +61,7 @@ struct mips_def_t { target_ulong CP0_EBaseWG_rw_bitmask; uint64_t insn_flags; enum mips_mmu_types mmu_type; + int32_t SAARP; }; extern const struct mips_def_t mips_defs[]; diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c index d1f1d1a..409c136 100644 --- a/target/mips/op_helper.c +++ b/target/mips/op_helper.c @@ -938,6 +938,22 @@ target_ulong helper_mfc0_count(CPUMIPSState *env) return count; } +target_ulong helper_mfc0_saar(CPUMIPSState *env) +{ + if ((env->CP0_SAARI & 0x3f) < 2) { + return (int32_t) env->CP0_SAAR[env->CP0_SAARI & 0x3f]; + } + return 0; +} + +target_ulong helper_mfhc0_saar(CPUMIPSState *env) +{ + if ((env->CP0_SAARI & 0x3f) < 2) { + return env->CP0_SAAR[env->CP0_SAARI & 0x3f] >> 32; + } + return 0; +} + target_ulong helper_mftc0_entryhi(CPUMIPSState *env) { int other_tc = env->CP0_VPEControl & (0xff << CP0VPECo_TargTC); @@ -1059,6 +1075,14 @@ target_ulong helper_dmfc0_watchlo(CPUMIPSState *env, uint32_t sel) { return env->CP0_WatchLo[sel]; } + +target_ulong helper_dmfc0_saar(CPUMIPSState *env) +{ + if ((env->CP0_SAARI & 0x3f) < 2) { + return env->CP0_SAAR[env->CP0_SAARI & 0x3f]; + } + return 0; +} #endif /* TARGET_MIPS64 */ void helper_mtc0_index(CPUMIPSState *env, target_ulong arg1) @@ -1598,6 +1622,32 @@ void helper_mtc0_count(CPUMIPSState *env, target_ulong arg1) qemu_mutex_unlock_iothread(); } +void helper_mtc0_saari(CPUMIPSState *env, target_ulong arg1) +{ + uint32_t target = arg1 & 0x3f; + if (target <= 1) { + env->CP0_SAARI = target; + } +} + +void helper_mtc0_saar(CPUMIPSState *env, target_ulong arg1) +{ + uint32_t target = env->CP0_SAARI & 0x3f; + if (target < 2) { + env->CP0_SAAR[target] = arg1 & 0x00000ffffffff03fULL; + } +} + +void helper_mthc0_saar(CPUMIPSState *env, target_ulong arg1) +{ + uint32_t target = env->CP0_SAARI & 0x3f; + if (target < 2) { + env->CP0_SAAR[target] = + (((uint64_t) arg1 << 32) & 0x00000fff00000000ULL) | + (env->CP0_SAAR[target] & 0x00000000ffffffffULL); + } +} + void helper_mtc0_entryhi(CPUMIPSState *env, target_ulong arg1) { target_ulong old, val, mask; diff --git a/target/mips/translate.c b/target/mips/translate.c index 827d0f7..00cbbf7 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -2537,6 +2537,7 @@ typedef struct DisasContext { bool mrp; bool nan2008; bool abs2008; + bool saar; } DisasContext; #define DISAS_STOP DISAS_TARGET_0 @@ -6592,6 +6593,17 @@ static void gen_mfhc0(DisasContext *ctx, TCGv arg, int reg, int sel) goto cp0_unimplemented; } break; + case CPO_REGISTER_09: + switch (sel) { + case 7: + CP0_CHECK(ctx->saar); + gen_helper_mfhc0_saar(arg, cpu_env); + rn = "SAAR"; + break; + default: + goto cp0_unimplemented; + } + break; case CPO_REGISTER_17: switch (sel) { case 0: @@ -6662,6 +6674,16 @@ static void gen_mthc0(DisasContext *ctx, TCGv arg, int reg, int sel) goto cp0_unimplemented; } break; + case CPO_REGISTER_09: + switch (sel) { + case 7: + CP0_CHECK(ctx->saar); + gen_helper_mthc0_saar(cpu_env, arg); + rn = "SAAR"; + break; + default: + goto cp0_unimplemented; + } case CPO_REGISTER_17: switch (sel) { case 0: @@ -7048,7 +7070,16 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int reg, int sel) ctx->base.is_jmp = DISAS_EXIT; rn = "Count"; break; - /* 6,7 are implementation dependent */ + case 6: + CP0_CHECK(ctx->saar); + gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_SAARI)); + rn = "SAARI"; + break; + case 7: + CP0_CHECK(ctx->saar); + gen_helper_mfc0_saar(arg, cpu_env); + rn = "SAAR"; + break; default: goto cp0_unimplemented; } @@ -7753,7 +7784,16 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel) gen_helper_mtc0_count(cpu_env, arg); rn = "Count"; break; - /* 6,7 are implementation dependent */ + case 6: + CP0_CHECK(ctx->saar); + gen_helper_mtc0_saari(cpu_env, arg); + rn = "SAARI"; + break; + case 7: + CP0_CHECK(ctx->saar); + gen_helper_mtc0_saar(cpu_env, arg); + rn = "SAAR"; + break; default: goto cp0_unimplemented; } @@ -8498,7 +8538,16 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int reg, int sel) ctx->base.is_jmp = DISAS_EXIT; rn = "Count"; break; - /* 6,7 are implementation dependent */ + case 6: + CP0_CHECK(ctx->saar); + gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_SAARI)); + rn = "SAARI"; + break; + case 7: + CP0_CHECK(ctx->saar); + gen_helper_dmfc0_saar(arg, cpu_env); + rn = "SAAR"; + break; default: goto cp0_unimplemented; } @@ -9186,7 +9235,16 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, int reg, int sel) gen_helper_mtc0_count(cpu_env, arg); rn = "Count"; break; - /* 6,7 are implementation dependent */ + case 6: + CP0_CHECK(ctx->saar); + gen_helper_mtc0_saari(cpu_env, arg); + rn = "SAARI"; + break; + case 7: + CP0_CHECK(ctx->saar); + gen_helper_mtc0_saar(cpu_env, arg); + rn = "SAAR"; + break; default: goto cp0_unimplemented; } -- 2.7.4