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[193.116.198.102]) by smtp.gmail.com with ESMTPSA id c4-20020aa78804000000b0064f51ee5b90sm2190772pfo.62.2023.06.25.05.03.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 25 Jun 2023 05:03:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687694613; x=1690286613; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=9tP7CdOhj4mSYtZ7J76n9PPXVafAWPOfShQkSnBW5n4=; b=CJeS7ukW4KqgzHTjDFhnvxnxAckLKuFXFQmrBs52QfQZJtHMvoeX+sOddwlbSpaxS0 dk3ILrvRIF6Wxo+lsVF3FjCzO+YeFlZA2/KcvQ14phaqIUz0NeLI4iRxkumkeYAVVfd/ 87zi1haG5a65kJe8/TpX9LlQlycSPrrMOeNpaLabKgzWe/AJDISRpOD5JhfwGwoistqo ker3flEbWTpFloBX06RZ4jtysHSpcGLCSMoxvJESNYPQmr28aUyK2y5rEmS2Qr7QzSPD uXEvv+FvltNCeERupJ5N/3EG8g15+ErWDziSAUQt64lGTijjU2B90CADGO05tophd6zb pEhA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687694613; x=1690286613; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=9tP7CdOhj4mSYtZ7J76n9PPXVafAWPOfShQkSnBW5n4=; b=Ig/NYMwAoUccZF4gDcgASA3G83QX8Y4zE076UlCC7sV4R1trZ5tp+oReqNGNvuCk7y naU1dWo7FyePENHKgcl/F/unueFePhLkmarHvhYex6O9cF+I4oyWXn4Rqk1V6bxFPU5B pRsHurklRgZpwwY6cHiaTowA9kfAp7kdgQm6QaeGykzEZeIZc3yxVk9v2i+zHW2Xb/1p LrruzPp0jGKk3mqH1nHwgvyV5toi3TOhWn7cO0tfBr0Mu7JqnnFz/CV+20eYHbafFb+B ZoYBCNExE9120epQ8FGta5pREuzXYSSJJuQEtjHdp7wrJa5sOFb4CNZS5By5lRNPZv2Q 2jMA== X-Gm-Message-State: AC+VfDw+NIqR6uQIxCLaRzPbm7NQOc9UH6ZqlwzJuZziI3vpIjTPdtEl N15v3v9r4pUQ9uk5i+HfYXg+RLA3AoA= X-Google-Smtp-Source: ACHHUZ4DFvtg0ZJOaSTNkkxFwrwDyT3dDCdOBGbx7ZurA2MWG0hAzNgs841K8nW0u3rD/KGbd4nZcw== X-Received: by 2002:a05:6a00:21d4:b0:668:9bf9:fa70 with SMTP id t20-20020a056a0021d400b006689bf9fa70mr12189261pfj.34.1687694612780; Sun, 25 Jun 2023 05:03:32 -0700 (PDT) From: Nicholas Piggin To: qemu-devel@nongnu.org Cc: Nicholas Piggin , qemu-ppc@nongnu.org, Daniel Henrique Barboza , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Harsh Prateek Bora Subject: [PATCH 2/2] target/ppc: Add TFMR SPR implementation with read and write helpers Date: Sun, 25 Jun 2023 22:03:17 +1000 Message-Id: <20230625120317.13877-3-npiggin@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230625120317.13877-1-npiggin@gmail.com> References: <20230625120317.13877-1-npiggin@gmail.com> 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=2607:f8b0:4864:20::434; envelope-from=npiggin@gmail.com; helo=mail-pf1-x434.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, FREEMAIL_FROM=0.001, 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 @gmail.com) X-ZM-MESSAGEID: 1687694661560100007 TFMR is the Time Facility Management Register which is specific to POWER CPUs, and used for the purpose of timebase management (generally by firmware, not the OS). Add helpers for the TFMR register, which will form part of the core timebase facility model in future but for now behaviour is unchanged. Reviewed-by: C=C3=A9dric Le Goater Signed-off-by: Nicholas Piggin --- target/ppc/cpu_init.c | 2 +- target/ppc/helper.h | 2 ++ target/ppc/spr_common.h | 2 ++ target/ppc/timebase_helper.c | 13 +++++++++++++ target/ppc/translate.c | 10 ++++++++++ 5 files changed, 28 insertions(+), 1 deletion(-) diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index 21ff4861c3..7d1b148fd4 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -5658,7 +5658,7 @@ static void register_power_common_book4_sprs(CPUPPCSt= ate *env) spr_register_hv(env, SPR_TFMR, "TFMR", SPR_NOACCESS, SPR_NOACCESS, SPR_NOACCESS, SPR_NOACCESS, - &spr_read_generic, &spr_write_generic, + &spr_read_tfmr, &spr_write_tfmr, 0x00000000); #endif } diff --git a/target/ppc/helper.h b/target/ppc/helper.h index fda40b8a60..eac5e7ab5d 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -745,6 +745,8 @@ DEF_HELPER_2(store_40x_dbcr0, void, env, tl) DEF_HELPER_2(store_40x_sler, void, env, tl) DEF_HELPER_FLAGS_2(store_booke_tcr, TCG_CALL_NO_RWG, void, env, tl) DEF_HELPER_FLAGS_2(store_booke_tsr, TCG_CALL_NO_RWG, void, env, tl) +DEF_HELPER_1(load_tfmr, tl, env) +DEF_HELPER_2(store_tfmr, void, env, tl) DEF_HELPER_3(store_ibatl, void, env, i32, tl) DEF_HELPER_3(store_ibatu, void, env, i32, tl) DEF_HELPER_3(store_dbatl, void, env, i32, tl) diff --git a/target/ppc/spr_common.h b/target/ppc/spr_common.h index 4c0f2bed77..fbf52123b5 100644 --- a/target/ppc/spr_common.h +++ b/target/ppc/spr_common.h @@ -194,6 +194,8 @@ void spr_write_ebb(DisasContext *ctx, int sprn, int gpr= n); void spr_read_ebb_upper32(DisasContext *ctx, int gprn, int sprn); void spr_write_ebb_upper32(DisasContext *ctx, int sprn, int gprn); void spr_write_hmer(DisasContext *ctx, int sprn, int gprn); +void spr_read_tfmr(DisasContext *ctx, int gprn, int sprn); +void spr_write_tfmr(DisasContext *ctx, int sprn, int gprn); void spr_write_lpcr(DisasContext *ctx, int sprn, int gprn); void spr_read_dexcr_ureg(DisasContext *ctx, int gprn, int sprn); #endif diff --git a/target/ppc/timebase_helper.c b/target/ppc/timebase_helper.c index b80f56af7e..08a6b47ee0 100644 --- a/target/ppc/timebase_helper.c +++ b/target/ppc/timebase_helper.c @@ -144,6 +144,19 @@ void helper_store_booke_tsr(CPUPPCState *env, target_u= long val) store_booke_tsr(env, val); } =20 +#if defined(TARGET_PPC64) +/* POWER processor Timebase Facility */ +target_ulong helper_load_tfmr(CPUPPCState *env) +{ + return env->spr[SPR_TFMR]; +} + +void helper_store_tfmr(CPUPPCState *env, target_ulong val) +{ + env->spr[SPR_TFMR] =3D val; +} +#endif + /*************************************************************************= ****/ /* Embedded PowerPC specific helpers */ =20 diff --git a/target/ppc/translate.c b/target/ppc/translate.c index eb278c2683..9ce03344de 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -1175,6 +1175,16 @@ void spr_write_hmer(DisasContext *ctx, int sprn, int= gprn) spr_store_dump_spr(sprn); } =20 +void spr_read_tfmr(DisasContext *ctx, int gprn, int sprn) +{ + gen_helper_load_tfmr(cpu_gpr[gprn], cpu_env); +} + +void spr_write_tfmr(DisasContext *ctx, int sprn, int gprn) +{ + gen_helper_store_tfmr(cpu_env, cpu_gpr[gprn]); +} + void spr_write_lpcr(DisasContext *ctx, int sprn, int gprn) { gen_helper_store_lpcr(cpu_env, cpu_gpr[gprn]); --=20 2.40.1