From nobody Wed Nov 27 06:41:55 2024 Received: from mx1.zhaoxin.com (MX1.ZHAOXIN.COM [210.0.225.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A363215383F for ; Mon, 14 Oct 2024 08:09:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.0.225.12 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728893398; cv=none; b=V9jb+N1bxOQr1QL7YLckmLDarq8hD2jgh0Bcx2rmdMlbGU2+bqLiz6yzRjvAkdXLgGnt9Ymq8ZKB19IctIIrXfEJxY1ZufXjxbSYv4gTeebVF/bMI55iidMMh9YEXjhUXx0PG5BDnbtbjh8IqL34WITNsXaKL56kAWhYF5Frgqs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728893398; c=relaxed/simple; bh=bPnlxjlI7MuDJEDssLTW/eBbHJXmLHJB/mQuRhWiLU0=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=D7twpiQgRhaI5nJy7pXWwCK8JJ6Sfq9aBKm4OTLjoNaNiTh581LvJRIk7tEa3AUT1IgYH0gpv1zhOMVQr49fO0D7q6iwpouvl5wkUy05VXroZgHs3TrV617UzThzuS7UBubgJSNC8+hwsLh4ma2s8DQXe3MbNd3qy0K25G1qyuQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=zhaoxin.com; spf=pass smtp.mailfrom=zhaoxin.com; arc=none smtp.client-ip=210.0.225.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=zhaoxin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zhaoxin.com X-ASG-Debug-ID: 1728893379-086e23455c01f40002-xx1T2L Received: from ZXSHMBX2.zhaoxin.com (ZXSHMBX2.zhaoxin.com [10.28.252.164]) by mx1.zhaoxin.com with ESMTP id SOeYZRn4UNjSBSXI (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Mon, 14 Oct 2024 16:09:48 +0800 (CST) X-Barracuda-Envelope-From: TonyWWang-oc@zhaoxin.com X-Barracuda-RBL-Trusted-Forwarder: 10.28.252.164 Received: from ZXSHMBX1.zhaoxin.com (10.28.252.163) by ZXSHMBX2.zhaoxin.com (10.28.252.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Mon, 14 Oct 2024 16:09:41 +0800 Received: from ZXSHMBX1.zhaoxin.com ([fe80::3066:e339:e3d6:5264]) by ZXSHMBX1.zhaoxin.com ([fe80::3066:e339:e3d6:5264%7]) with mapi id 15.01.2507.039; Mon, 14 Oct 2024 16:09:41 +0800 X-Barracuda-RBL-Trusted-Forwarder: 10.28.252.164 Received: from localhost.localdomain (10.32.65.165) by ZXBJMBX03.zhaoxin.com (10.29.252.7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Mon, 14 Oct 2024 15:53:10 +0800 From: Tony W Wang-oc To: , , , , , , , , , CC: , , , Lyle Li Subject: [PATCH v5 3/4] x86/mce: Add zhaoxin.c to support Zhaoxin MCA Date: Mon, 14 Oct 2024 15:53:17 +0800 X-ASG-Orig-Subj: [PATCH v5 3/4] x86/mce: Add zhaoxin.c to support Zhaoxin MCA Message-ID: <20241014075318.1936-4-TonyWWang-oc@zhaoxin.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241014075318.1936-1-TonyWWang-oc@zhaoxin.com> References: <20240923073311.4290-1-TonyWWang-oc@zhaoxin.com> <20241014075318.1936-1-TonyWWang-oc@zhaoxin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: zxbjmbx1.zhaoxin.com (10.29.252.163) To ZXBJMBX03.zhaoxin.com (10.29.252.7) X-Moderation-Data: 10/14/2024 4:09:40 PM X-Barracuda-Connect: ZXSHMBX2.zhaoxin.com[10.28.252.164] X-Barracuda-Start-Time: 1728893379 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://10.28.252.35:4443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at zhaoxin.com X-Barracuda-Scan-Msg-Size: 6814 X-Barracuda-BRTS-Status: 1 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=9.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.131784 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Content-Type: text/plain; charset="utf-8" From: Lyle Li For the sake of code standardization, add zhaoxin.c to override the Zhaoxin MCA code. Signed-off-by: Lyle Li Signed-off-by: Tony W Wang-oc Reviewed-by: Qiuxu Zhuo --- arch/x86/Kconfig | 8 ++++ arch/x86/kernel/cpu/mce/Makefile | 1 + arch/x86/kernel/cpu/mce/core.c | 57 -------------------------- arch/x86/kernel/cpu/mce/internal.h | 7 ++++ arch/x86/kernel/cpu/mce/zhaoxin.c | 64 ++++++++++++++++++++++++++++++ 5 files changed, 80 insertions(+), 57 deletions(-) create mode 100644 arch/x86/kernel/cpu/mce/zhaoxin.c diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 1ea18662942c..a7993835f460 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1183,6 +1183,14 @@ config X86_MCE_INTEL Additional support for intel specific MCE features such as the thermal monitor. =20 +config X86_MCE_ZHAOXIN + def_bool y + prompt "Zhaoxin MCE features" + depends on X86_MCE_INTEL + help + Additional support for Zhaoxin specific MCE features such as + the corrected machine check interrupt. + config X86_MCE_AMD def_bool y prompt "AMD MCE features" diff --git a/arch/x86/kernel/cpu/mce/Makefile b/arch/x86/kernel/cpu/mce/Mak= efile index 015856abdbb1..7b52c8f2f08e 100644 --- a/arch/x86/kernel/cpu/mce/Makefile +++ b/arch/x86/kernel/cpu/mce/Makefile @@ -4,6 +4,7 @@ obj-y =3D core.o severity.o genpool.o obj-$(CONFIG_X86_ANCIENT_MCE) +=3D winchip.o p5.o obj-$(CONFIG_X86_MCE_INTEL) +=3D intel.o obj-$(CONFIG_X86_MCE_AMD) +=3D amd.o +obj-$(CONFIG_X86_MCE_ZHAOXIN) +=3D zhaoxin.o obj-$(CONFIG_X86_MCE_THRESHOLD) +=3D threshold.o =20 mce-inject-y :=3D inject.o diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c index f71b33b96b5b..a1684b73b349 100644 --- a/arch/x86/kernel/cpu/mce/core.c +++ b/arch/x86/kernel/cpu/mce/core.c @@ -1970,17 +1970,6 @@ static int __mcheck_cpu_apply_quirks(struct cpuinfo_= x86 *c) mce_flags.skx_repmov_quirk =3D 1; } =20 - if (c->x86_vendor =3D=3D X86_VENDOR_ZHAOXIN) { - /* - * All newer Zhaoxin CPUs support MCE broadcasting. Enable - * synchronization with a one second timeout. - */ - if (c->x86 > 6 || (c->x86_model =3D=3D 0x19 || c->x86_model =3D=3D 0x1f)= ) { - if (cfg->monarch_timeout < 0) - cfg->monarch_timeout =3D USEC_PER_SEC; - } - } - if (cfg->monarch_timeout < 0) cfg->monarch_timeout =3D 0; if (cfg->bootlog !=3D 0) @@ -2023,49 +2012,6 @@ static void __mcheck_cpu_init_early(struct cpuinfo_x= 86 *c) } } =20 -static void mce_centaur_feature_init(struct cpuinfo_x86 *c) -{ - struct mca_config *cfg =3D &mca_cfg; - - /* - * All newer Centaur CPUs support MCE broadcasting. Enable - * synchronization with a one second timeout. - */ - if ((c->x86 =3D=3D 6 && c->x86_model =3D=3D 0xf && c->x86_stepping >=3D 0= xe) || - c->x86 > 6) { - if (cfg->monarch_timeout < 0) - cfg->monarch_timeout =3D USEC_PER_SEC; - } -} - -static void mce_zhaoxin_feature_init(struct cpuinfo_x86 *c) -{ - struct mce_bank *mce_banks =3D this_cpu_ptr(mce_banks_array); - - /* - * These CPUs have MCA bank 8 which reports only one error type called - * SVAD (System View Address Decoder). The reporting of that error is - * controlled by IA32_MC8.CTL.0. - * - * If enabled, prefetching on these CPUs will cause SVAD MCE when - * virtual machines start and result in a system panic. Always disable - * bank 8 SVAD error by default. - */ - if ((c->x86 =3D=3D 7 && c->x86_model =3D=3D 0x1b) || - (c->x86_model =3D=3D 0x19 || c->x86_model =3D=3D 0x1f)) { - if (this_cpu_read(mce_num_banks) > 8) - mce_banks[8].ctl =3D 0; - } - - intel_init_cmci(); - intel_init_lmce(); -} - -static void mce_zhaoxin_feature_clear(struct cpuinfo_x86 *c) -{ - intel_clear_lmce(); -} - static void __mcheck_cpu_init_vendor(struct cpuinfo_x86 *c) { switch (c->x86_vendor) { @@ -2083,9 +2029,6 @@ static void __mcheck_cpu_init_vendor(struct cpuinfo_x= 86 *c) break; =20 case X86_VENDOR_CENTAUR: - mce_centaur_feature_init(c); - break; - case X86_VENDOR_ZHAOXIN: mce_zhaoxin_feature_init(c); break; diff --git a/arch/x86/kernel/cpu/mce/internal.h b/arch/x86/kernel/cpu/mce/i= nternal.h index 43c7f3b71df5..fb9d8b5b3b75 100644 --- a/arch/x86/kernel/cpu/mce/internal.h +++ b/arch/x86/kernel/cpu/mce/internal.h @@ -336,4 +336,11 @@ static __always_inline u32 mca_msr_reg(int bank, enum = mca_msr reg) } =20 extern void (*mc_poll_banks)(void); +#ifdef CONFIG_X86_MCE_ZHAOXIN +void mce_zhaoxin_feature_init(struct cpuinfo_x86 *c); +void mce_zhaoxin_feature_clear(struct cpuinfo_x86 *c); +#else +static inline void mce_zhaoxin_feature_init(struct cpuinfo_x86 *c) { } +static inline void mce_zhaoxin_feature_clear(struct cpuinfo_x86 *c) { } +#endif #endif /* __X86_MCE_INTERNAL_H__ */ diff --git a/arch/x86/kernel/cpu/mce/zhaoxin.c b/arch/x86/kernel/cpu/mce/zh= aoxin.c new file mode 100644 index 000000000000..6fdef2d24f31 --- /dev/null +++ b/arch/x86/kernel/cpu/mce/zhaoxin.c @@ -0,0 +1,64 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Zhaoxin specific MCE features + * Author: Lyle Li + */ +#include +#include "internal.h" + +static void mce_zhaoxin_apply_mce_broadcast(struct cpuinfo_x86 *c) +{ + struct mca_config *cfg =3D &mca_cfg; + + /* Older CPUs do not do MCE broadcast: */ + if (c->x86 < 6) + return; + + /* All newer ones do: */ + if (c->x86 > 6) + goto mce_broadcast; + + /* Family 6 is mixed: */ + if (c->x86_vendor =3D=3D X86_VENDOR_CENTAUR) { + if (c->x86_model =3D=3D 0xf && c->x86_stepping >=3D 0xe) + goto mce_broadcast; + } else if (c->x86_vendor =3D=3D X86_VENDOR_ZHAOXIN) { + if (c->x86_model =3D=3D 0x19 || c->x86_model =3D=3D 0x1f) + goto mce_broadcast; + } + + return; + +mce_broadcast: + if (cfg->monarch_timeout <=3D 0) + cfg->monarch_timeout =3D USEC_PER_SEC; +} + +void mce_zhaoxin_feature_init(struct cpuinfo_x86 *c) +{ + struct mce_bank *mce_banks =3D this_cpu_ptr(mce_banks_array); + + /* + * These CPUs have MCA bank 8 which reports only one error type called + * SVAD (System View Address Decoder). The reporting of that error is + * controlled by IA32_MC8.CTL.0. + * + * If enabled, prefetching on these CPUs will cause SVAD MCE when + * virtual machines start and result in a system panic. Always disable + * bank 8 SVAD error by default. + */ + if ((c->x86 =3D=3D 7 && c->x86_model =3D=3D 0x1b) || + (c->x86_model =3D=3D 0x19 || c->x86_model =3D=3D 0x1f)) { + if (this_cpu_read(mce_num_banks) > 8) + mce_banks[8].ctl =3D 0; + } + + mce_zhaoxin_apply_mce_broadcast(c); + intel_init_cmci(); + intel_init_lmce(); +} + +void mce_zhaoxin_feature_clear(struct cpuinfo_x86 *c) +{ + intel_clear_lmce(); +} --=20 2.34.1