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Fri, 09 Feb 2024 01:05:21 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCWfVt9ioVBAQp7E/L5r8u8qvyBkurRg1WzvG2XfIAeb+MmOpkhZZPmuCFKsjjN0unzqv466T5ns3qrAjX0w2Y9tMhoGDlo/WjlWPUj9uU5F/Sha1/PaoJDEhLW4Mzy9SNOIj0ewnWwTz15/EfHAgajkfXRY9CFw8meQDyBj3/Qsi78y6QrstTb8Tc90kTXqdhSahiEm+fwim+1UQOIbW2LfGSAOY5usvcrDRV9vIG+FfunyOI3JbefWQ40fy9JpBT8y29GDjaoH0AH03MlbLcDVcUuE1/aLHm7rG0NVvCDXDtxxO5rkJqKONmgpr9OyxRXeDjEnHG2xo5DuZAgs5R8FXrxp1iQ= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Thomas Huth , Aurelien Jarno , Laurent Vivier , Jiaxun Yang , Paolo Bonzini , Peter Maydell , Huacai Chen , Richard Henderson , Aleksandar Rikalo Subject: [RFC PATCH 01/11] target/mips: Remove helpers accessing SAAR registers Date: Fri, 9 Feb 2024 10:05:02 +0100 Message-ID: <20240209090513.9401-2-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240209090513.9401-1-philmd@linaro.org> References: <20240209090513.9401-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::12d; envelope-from=philmd@linaro.org; helo=mail-lf1-x12d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1707469615097100007 DisasContext::saar boolean is never set, so this code is not reachable. Remove it. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- target/mips/tcg/sysemu_helper.h.inc | 5 --- target/mips/tcg/sysemu/cp0_helper.c | 55 ----------------------------- target/mips/tcg/translate.c | 42 ---------------------- 3 files changed, 102 deletions(-) diff --git a/target/mips/tcg/sysemu_helper.h.inc b/target/mips/tcg/sysemu_h= elper.h.inc index f163af1eac..78f7272208 100644 --- a/target/mips/tcg/sysemu_helper.h.inc +++ b/target/mips/tcg/sysemu_helper.h.inc @@ -31,8 +31,6 @@ 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) @@ -57,7 +55,6 @@ DEF_HELPER_1(dmfc0_lladdr, tl, env) DEF_HELPER_1(dmfc0_maar, tl, env) DEF_HELPER_2(dmfc0_watchlo, tl, env, i32) DEF_HELPER_2(dmfc0_watchhi, tl, env, i32) -DEF_HELPER_1(dmfc0_saar, tl, env) #endif /* TARGET_MIPS64 */ =20 DEF_HELPER_2(mtc0_index, void, env, tl) @@ -104,8 +101,6 @@ 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/tcg/sysemu/cp0_helper.c b/target/mips/tcg/sysemu/c= p0_helper.c index 62f6fb4bf6..f8883a3515 100644 --- a/target/mips/tcg/sysemu/cp0_helper.c +++ b/target/mips/tcg/sysemu/cp0_helper.c @@ -371,22 +371,6 @@ target_ulong helper_mfc0_count(CPUMIPSState *env) return (int32_t)cpu_mips_get_count(env); } =20 -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 =3D env->CP0_VPEControl & (0xff << CP0VPECo_TargTC); @@ -514,13 +498,6 @@ target_ulong helper_dmfc0_watchhi(CPUMIPSState *env, u= int32_t sel) return env->CP0_WatchHi[sel]; } =20 -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 */ =20 void helper_mtc0_index(CPUMIPSState *env, target_ulong arg1) @@ -1108,38 +1085,6 @@ void helper_mtc0_saari(CPUMIPSState *env, target_ulo= ng arg1) } } =20 -void helper_mtc0_saar(CPUMIPSState *env, target_ulong arg1) -{ - uint32_t target =3D env->CP0_SAARI & 0x3f; - if (target < 2) { - env->CP0_SAAR[target] =3D arg1 & 0x00000ffffffff03fULL; - switch (target) { - case 0: - if (env->itu) { - itc_reconfigure(env->itu); - } - break; - } - } -} - -void helper_mthc0_saar(CPUMIPSState *env, target_ulong arg1) -{ - uint32_t target =3D env->CP0_SAARI & 0x3f; - if (target < 2) { - env->CP0_SAAR[target] =3D - (((uint64_t) arg1 << 32) & 0x00000fff00000000ULL) | - (env->CP0_SAAR[target] & 0x00000000ffffffffULL); - switch (target) { - case 0: - if (env->itu) { - itc_reconfigure(env->itu); - } - break; - } - } -} - void helper_mtc0_entryhi(CPUMIPSState *env, target_ulong arg1) { target_ulong old, val, mask; diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c index 12094cc1e7..173b19a090 100644 --- a/target/mips/tcg/translate.c +++ b/target/mips/tcg/translate.c @@ -5151,17 +5151,6 @@ static void gen_mfhc0(DisasContext *ctx, TCGv arg, i= nt reg, int sel) goto cp0_unimplemented; } break; - case CP0_REGISTER_09: - switch (sel) { - case CP0_REG09__SAAR: - CP0_CHECK(ctx->saar); - gen_helper_mfhc0_saar(arg, tcg_env); - register_name =3D "SAAR"; - break; - default: - goto cp0_unimplemented; - } - break; case CP0_REGISTER_17: switch (sel) { case CP0_REG17__LLADDR: @@ -5252,17 +5241,6 @@ static void gen_mthc0(DisasContext *ctx, TCGv arg, i= nt reg, int sel) goto cp0_unimplemented; } break; - case CP0_REGISTER_09: - switch (sel) { - case CP0_REG09__SAAR: - CP0_CHECK(ctx->saar); - gen_helper_mthc0_saar(tcg_env, arg); - register_name =3D "SAAR"; - break; - default: - goto cp0_unimplemented; - } - break; case CP0_REGISTER_17: switch (sel) { case CP0_REG17__LLADDR: @@ -5680,11 +5658,6 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, in= t reg, int sel) gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_SAARI)); register_name =3D "SAARI"; break; - case CP0_REG09__SAAR: - CP0_CHECK(ctx->saar); - gen_helper_mfc0_saar(arg, tcg_env); - register_name =3D "SAAR"; - break; default: goto cp0_unimplemented; } @@ -6406,11 +6379,6 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, in= t reg, int sel) gen_helper_mtc0_saari(tcg_env, arg); register_name =3D "SAARI"; break; - case CP0_REG09__SAAR: - CP0_CHECK(ctx->saar); - gen_helper_mtc0_saar(tcg_env, arg); - register_name =3D "SAAR"; - break; default: goto cp0_unimplemented; } @@ -7180,11 +7148,6 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, i= nt reg, int sel) gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_SAARI)); register_name =3D "SAARI"; break; - case CP0_REG09__SAAR: - CP0_CHECK(ctx->saar); - gen_helper_dmfc0_saar(arg, tcg_env); - register_name =3D "SAAR"; - break; default: goto cp0_unimplemented; } @@ -7892,11 +7855,6 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, i= nt reg, int sel) gen_helper_mtc0_saari(tcg_env, arg); register_name =3D "SAARI"; break; - case CP0_REG09__SAAR: - CP0_CHECK(ctx->saar); - gen_helper_mtc0_saar(tcg_env, arg); - register_name =3D "SAAR"; - break; default: goto cp0_unimplemented; } --=20 2.41.0