From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF39BC47258 for ; Sat, 2 May 2020 13:35:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B386824957 for ; Sat, 2 May 2020 13:35:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728235AbgEBNfR (ORCPT ); Sat, 2 May 2020 09:35:17 -0400 Received: from foss.arm.com ([217.140.110.172]:52364 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728052AbgEBNfP (ORCPT ); Sat, 2 May 2020 09:35:15 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3F09530E; Sat, 2 May 2020 06:35:15 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.71.130]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 38E793F68F; Sat, 2 May 2020 06:35:11 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Catalin Marinas , Will Deacon , Marc Zyngier , Mark Rutland , James Morse , Suzuki K Poulose , kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org Subject: [PATCH V3 06/16] arm64/cpufeature: Introduce ID_MMFR5 CPU register Date: Sat, 2 May 2020 19:03:55 +0530 Message-Id: <1588426445-24344-7-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588426445-24344-1-git-send-email-anshuman.khandual@arm.com> References: <1588426445-24344-1-git-send-email-anshuman.khandual@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds basic building blocks required for ID_MMFR5 CPU register which provides information about the implemented memory model and memory management support in AArch32 state. This is added per ARM DDI 0487F.a specification. Cc: Catalin Marinas Cc: Will Deacon Cc: Marc Zyngier Cc: Mark Rutland Cc: James Morse Cc: Suzuki K Poulose Cc: kvmarm@lists.cs.columbia.edu Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Suggested-by: Will Deacon Signed-off-by: Anshuman Khandual --- arch/arm64/include/asm/cpu.h | 1 + arch/arm64/include/asm/sysreg.h | 3 +++ arch/arm64/kernel/cpufeature.c | 10 ++++++++++ arch/arm64/kernel/cpuinfo.c | 1 + arch/arm64/kvm/sys_regs.c | 2 +- 5 files changed, 16 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h index d9a78bdec409..e1f5ef437671 100644 --- a/arch/arm64/include/asm/cpu.h +++ b/arch/arm64/include/asm/cpu.h @@ -45,6 +45,7 @@ struct cpuinfo_arm64 { u32 reg_id_mmfr1; u32 reg_id_mmfr2; u32 reg_id_mmfr3; + u32 reg_id_mmfr5; u32 reg_id_pfr0; u32 reg_id_pfr1; u32 reg_id_pfr2; diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 2e1e922e1409..fe1725bbc4bb 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -155,6 +155,7 @@ #define SYS_MVFR2_EL1 sys_reg(3, 0, 0, 3, 2) #define SYS_ID_PFR2_EL1 sys_reg(3, 0, 0, 3, 4) #define SYS_ID_DFR1_EL1 sys_reg(3, 0, 0, 3, 5) +#define SYS_ID_MMFR5_EL1 sys_reg(3, 0, 0, 3, 6) #define SYS_ID_AA64PFR0_EL1 sys_reg(3, 0, 0, 4, 0) #define SYS_ID_AA64PFR1_EL1 sys_reg(3, 0, 0, 4, 1) @@ -789,6 +790,8 @@ #define ID_ISAR6_DP_SHIFT 4 #define ID_ISAR6_JSCVT_SHIFT 0 +#define ID_MMFR5_ETS_SHIFT 0 + #define ID_PFR2_SSBS_SHIFT 4 #define ID_PFR2_CSV3_SHIFT 0 diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 2ce952d9668d..c790cc200bb1 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -403,6 +403,11 @@ static const struct arm64_ftr_bits ftr_id_isar4[] = { ARM64_FTR_END, }; +static const struct arm64_ftr_bits ftr_id_mmfr5[] = { + ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_MMFR5_ETS_SHIFT, 4, 0), + ARM64_FTR_END, +}; + static const struct arm64_ftr_bits ftr_id_isar6[] = { ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_I8MM_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_BF16_SHIFT, 4, 0), @@ -527,6 +532,7 @@ static const struct __ftr_reg_entry { ARM64_FTR_REG(SYS_MVFR2_EL1, ftr_mvfr2), ARM64_FTR_REG(SYS_ID_PFR2_EL1, ftr_id_pfr2), ARM64_FTR_REG(SYS_ID_DFR1_EL1, ftr_id_dfr1), + ARM64_FTR_REG(SYS_ID_MMFR5_EL1, ftr_id_mmfr5), /* Op1 = 0, CRn = 0, CRm = 4 */ ARM64_FTR_REG(SYS_ID_AA64PFR0_EL1, ftr_id_aa64pfr0), @@ -732,6 +738,7 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info) init_cpu_ftr_reg(SYS_ID_MMFR1_EL1, info->reg_id_mmfr1); init_cpu_ftr_reg(SYS_ID_MMFR2_EL1, info->reg_id_mmfr2); init_cpu_ftr_reg(SYS_ID_MMFR3_EL1, info->reg_id_mmfr3); + init_cpu_ftr_reg(SYS_ID_MMFR5_EL1, info->reg_id_mmfr5); init_cpu_ftr_reg(SYS_ID_PFR0_EL1, info->reg_id_pfr0); init_cpu_ftr_reg(SYS_ID_PFR1_EL1, info->reg_id_pfr1); init_cpu_ftr_reg(SYS_ID_PFR2_EL1, info->reg_id_pfr2); @@ -866,6 +873,8 @@ static int update_32bit_cpu_features(int cpu, struct cpuinfo_arm64 *info, info->reg_id_mmfr2, boot->reg_id_mmfr2); taint |= check_update_ftr_reg(SYS_ID_MMFR3_EL1, cpu, info->reg_id_mmfr3, boot->reg_id_mmfr3); + taint |= check_update_ftr_reg(SYS_ID_MMFR5_EL1, cpu, + info->reg_id_mmfr5, boot->reg_id_mmfr5); taint |= check_update_ftr_reg(SYS_ID_PFR0_EL1, cpu, info->reg_id_pfr0, boot->reg_id_pfr0); taint |= check_update_ftr_reg(SYS_ID_PFR1_EL1, cpu, @@ -1006,6 +1015,7 @@ static u64 __read_sysreg_by_encoding(u32 sys_id) read_sysreg_case(SYS_ID_MMFR1_EL1); read_sysreg_case(SYS_ID_MMFR2_EL1); read_sysreg_case(SYS_ID_MMFR3_EL1); + read_sysreg_case(SYS_ID_MMFR5_EL1); read_sysreg_case(SYS_ID_ISAR0_EL1); read_sysreg_case(SYS_ID_ISAR1_EL1); read_sysreg_case(SYS_ID_ISAR2_EL1); diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 50a281703d9d..54579bf08f74 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -374,6 +374,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info) info->reg_id_mmfr1 = read_cpuid(ID_MMFR1_EL1); info->reg_id_mmfr2 = read_cpuid(ID_MMFR2_EL1); info->reg_id_mmfr3 = read_cpuid(ID_MMFR3_EL1); + info->reg_id_mmfr5 = read_cpuid(ID_MMFR5_EL1); info->reg_id_pfr0 = read_cpuid(ID_PFR0_EL1); info->reg_id_pfr1 = read_cpuid(ID_PFR1_EL1); info->reg_id_pfr2 = read_cpuid(ID_PFR2_EL1); diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index c78aa15aaac8..63b8c7534d26 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1458,7 +1458,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { ID_UNALLOCATED(3,3), ID_SANITISED(ID_PFR2_EL1), ID_SANITISED(ID_DFR1_EL1), - ID_UNALLOCATED(3,6), + ID_SANITISED(ID_MMFR5_EL1), ID_UNALLOCATED(3,7), /* AArch64 ID registers */ -- 2.20.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6A9FC3A5A9 for ; Sat, 2 May 2020 13:35:20 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 76E1224958 for ; Sat, 2 May 2020 13:35:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 76E1224958 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 315E14B433; Sat, 2 May 2020 09:35:20 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id d3QvjeEzejo3; Sat, 2 May 2020 09:35:18 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id CE7C24B6F9; Sat, 2 May 2020 09:35:18 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id EAA2D4B6EC for ; Sat, 2 May 2020 09:35:16 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Jt40OKXlT1cb for ; Sat, 2 May 2020 09:35:15 -0400 (EDT) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 9EEFB4B433 for ; Sat, 2 May 2020 09:35:15 -0400 (EDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3F09530E; Sat, 2 May 2020 06:35:15 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.71.130]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 38E793F68F; Sat, 2 May 2020 06:35:11 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Subject: [PATCH V3 06/16] arm64/cpufeature: Introduce ID_MMFR5 CPU register Date: Sat, 2 May 2020 19:03:55 +0530 Message-Id: <1588426445-24344-7-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588426445-24344-1-git-send-email-anshuman.khandual@arm.com> References: <1588426445-24344-1-git-send-email-anshuman.khandual@arm.com> Cc: Anshuman Khandual , Catalin Marinas , linux-kernel@vger.kernel.org, Marc Zyngier , Will Deacon , kvmarm@lists.cs.columbia.edu X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu This adds basic building blocks required for ID_MMFR5 CPU register which provides information about the implemented memory model and memory management support in AArch32 state. This is added per ARM DDI 0487F.a specification. Cc: Catalin Marinas Cc: Will Deacon Cc: Marc Zyngier Cc: Mark Rutland Cc: James Morse Cc: Suzuki K Poulose Cc: kvmarm@lists.cs.columbia.edu Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Suggested-by: Will Deacon Signed-off-by: Anshuman Khandual --- arch/arm64/include/asm/cpu.h | 1 + arch/arm64/include/asm/sysreg.h | 3 +++ arch/arm64/kernel/cpufeature.c | 10 ++++++++++ arch/arm64/kernel/cpuinfo.c | 1 + arch/arm64/kvm/sys_regs.c | 2 +- 5 files changed, 16 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h index d9a78bdec409..e1f5ef437671 100644 --- a/arch/arm64/include/asm/cpu.h +++ b/arch/arm64/include/asm/cpu.h @@ -45,6 +45,7 @@ struct cpuinfo_arm64 { u32 reg_id_mmfr1; u32 reg_id_mmfr2; u32 reg_id_mmfr3; + u32 reg_id_mmfr5; u32 reg_id_pfr0; u32 reg_id_pfr1; u32 reg_id_pfr2; diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 2e1e922e1409..fe1725bbc4bb 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -155,6 +155,7 @@ #define SYS_MVFR2_EL1 sys_reg(3, 0, 0, 3, 2) #define SYS_ID_PFR2_EL1 sys_reg(3, 0, 0, 3, 4) #define SYS_ID_DFR1_EL1 sys_reg(3, 0, 0, 3, 5) +#define SYS_ID_MMFR5_EL1 sys_reg(3, 0, 0, 3, 6) #define SYS_ID_AA64PFR0_EL1 sys_reg(3, 0, 0, 4, 0) #define SYS_ID_AA64PFR1_EL1 sys_reg(3, 0, 0, 4, 1) @@ -789,6 +790,8 @@ #define ID_ISAR6_DP_SHIFT 4 #define ID_ISAR6_JSCVT_SHIFT 0 +#define ID_MMFR5_ETS_SHIFT 0 + #define ID_PFR2_SSBS_SHIFT 4 #define ID_PFR2_CSV3_SHIFT 0 diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 2ce952d9668d..c790cc200bb1 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -403,6 +403,11 @@ static const struct arm64_ftr_bits ftr_id_isar4[] = { ARM64_FTR_END, }; +static const struct arm64_ftr_bits ftr_id_mmfr5[] = { + ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_MMFR5_ETS_SHIFT, 4, 0), + ARM64_FTR_END, +}; + static const struct arm64_ftr_bits ftr_id_isar6[] = { ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_I8MM_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_BF16_SHIFT, 4, 0), @@ -527,6 +532,7 @@ static const struct __ftr_reg_entry { ARM64_FTR_REG(SYS_MVFR2_EL1, ftr_mvfr2), ARM64_FTR_REG(SYS_ID_PFR2_EL1, ftr_id_pfr2), ARM64_FTR_REG(SYS_ID_DFR1_EL1, ftr_id_dfr1), + ARM64_FTR_REG(SYS_ID_MMFR5_EL1, ftr_id_mmfr5), /* Op1 = 0, CRn = 0, CRm = 4 */ ARM64_FTR_REG(SYS_ID_AA64PFR0_EL1, ftr_id_aa64pfr0), @@ -732,6 +738,7 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info) init_cpu_ftr_reg(SYS_ID_MMFR1_EL1, info->reg_id_mmfr1); init_cpu_ftr_reg(SYS_ID_MMFR2_EL1, info->reg_id_mmfr2); init_cpu_ftr_reg(SYS_ID_MMFR3_EL1, info->reg_id_mmfr3); + init_cpu_ftr_reg(SYS_ID_MMFR5_EL1, info->reg_id_mmfr5); init_cpu_ftr_reg(SYS_ID_PFR0_EL1, info->reg_id_pfr0); init_cpu_ftr_reg(SYS_ID_PFR1_EL1, info->reg_id_pfr1); init_cpu_ftr_reg(SYS_ID_PFR2_EL1, info->reg_id_pfr2); @@ -866,6 +873,8 @@ static int update_32bit_cpu_features(int cpu, struct cpuinfo_arm64 *info, info->reg_id_mmfr2, boot->reg_id_mmfr2); taint |= check_update_ftr_reg(SYS_ID_MMFR3_EL1, cpu, info->reg_id_mmfr3, boot->reg_id_mmfr3); + taint |= check_update_ftr_reg(SYS_ID_MMFR5_EL1, cpu, + info->reg_id_mmfr5, boot->reg_id_mmfr5); taint |= check_update_ftr_reg(SYS_ID_PFR0_EL1, cpu, info->reg_id_pfr0, boot->reg_id_pfr0); taint |= check_update_ftr_reg(SYS_ID_PFR1_EL1, cpu, @@ -1006,6 +1015,7 @@ static u64 __read_sysreg_by_encoding(u32 sys_id) read_sysreg_case(SYS_ID_MMFR1_EL1); read_sysreg_case(SYS_ID_MMFR2_EL1); read_sysreg_case(SYS_ID_MMFR3_EL1); + read_sysreg_case(SYS_ID_MMFR5_EL1); read_sysreg_case(SYS_ID_ISAR0_EL1); read_sysreg_case(SYS_ID_ISAR1_EL1); read_sysreg_case(SYS_ID_ISAR2_EL1); diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 50a281703d9d..54579bf08f74 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -374,6 +374,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info) info->reg_id_mmfr1 = read_cpuid(ID_MMFR1_EL1); info->reg_id_mmfr2 = read_cpuid(ID_MMFR2_EL1); info->reg_id_mmfr3 = read_cpuid(ID_MMFR3_EL1); + info->reg_id_mmfr5 = read_cpuid(ID_MMFR5_EL1); info->reg_id_pfr0 = read_cpuid(ID_PFR0_EL1); info->reg_id_pfr1 = read_cpuid(ID_PFR1_EL1); info->reg_id_pfr2 = read_cpuid(ID_PFR2_EL1); diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index c78aa15aaac8..63b8c7534d26 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1458,7 +1458,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { ID_UNALLOCATED(3,3), ID_SANITISED(ID_PFR2_EL1), ID_SANITISED(ID_DFR1_EL1), - ID_UNALLOCATED(3,6), + ID_SANITISED(ID_MMFR5_EL1), ID_UNALLOCATED(3,7), /* AArch64 ID registers */ -- 2.20.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 63640C3A5A9 for ; Sat, 2 May 2020 13:37:01 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 307A82192A for ; Sat, 2 May 2020 13:37:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Wdl2Ln0W" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 307A82192A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=9vtdNOAeXwQgSFPxI1hHW6Kn183XqbuVF09qwOZlgwQ=; b=Wdl2Ln0WhaLjZbNt7dfMlXEWdb E3/hja6BSzvI30QCuztmb5kL1ABcez6a1axm15evCML7lOpQk/jLQBMEFHukZcU47+IP1YSKAND28 jz/+rYwaSZOvqQUFWpX9aaR2eCrWDWKS1ZIxv79swgVDa/veWGRYlGvRrHkadBmXWjRMf38jParaw YI9rWzU6EGhx1PPMDgiyu0SANT5q5ZaIGQTVMcZQwW4+Y6h7/L58wTKfOcp4s4dFQGWid+0NpoOfo 0ZSryG6BBy9BhKzYwG2BJ/ZWqNcNeze1s59g1QSmpqWpfJAsKgHrYrFNDjT8gLELg5jslyVTkRoFm ejwV9Oxg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jUsKB-0007dq-Tx; Sat, 02 May 2020 13:36:59 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jUsIW-0005pw-6F for linux-arm-kernel@lists.infradead.org; Sat, 02 May 2020 13:35:20 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3F09530E; Sat, 2 May 2020 06:35:15 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.71.130]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 38E793F68F; Sat, 2 May 2020 06:35:11 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Subject: [PATCH V3 06/16] arm64/cpufeature: Introduce ID_MMFR5 CPU register Date: Sat, 2 May 2020 19:03:55 +0530 Message-Id: <1588426445-24344-7-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1588426445-24344-1-git-send-email-anshuman.khandual@arm.com> References: <1588426445-24344-1-git-send-email-anshuman.khandual@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200502_063517_840298_3FA9CC79 X-CRM114-Status: GOOD ( 13.43 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Anshuman Khandual , Catalin Marinas , Suzuki K Poulose , linux-kernel@vger.kernel.org, James Morse , Marc Zyngier , Will Deacon , kvmarm@lists.cs.columbia.edu MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org This adds basic building blocks required for ID_MMFR5 CPU register which provides information about the implemented memory model and memory management support in AArch32 state. This is added per ARM DDI 0487F.a specification. Cc: Catalin Marinas Cc: Will Deacon Cc: Marc Zyngier Cc: Mark Rutland Cc: James Morse Cc: Suzuki K Poulose Cc: kvmarm@lists.cs.columbia.edu Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Suggested-by: Will Deacon Signed-off-by: Anshuman Khandual --- arch/arm64/include/asm/cpu.h | 1 + arch/arm64/include/asm/sysreg.h | 3 +++ arch/arm64/kernel/cpufeature.c | 10 ++++++++++ arch/arm64/kernel/cpuinfo.c | 1 + arch/arm64/kvm/sys_regs.c | 2 +- 5 files changed, 16 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h index d9a78bdec409..e1f5ef437671 100644 --- a/arch/arm64/include/asm/cpu.h +++ b/arch/arm64/include/asm/cpu.h @@ -45,6 +45,7 @@ struct cpuinfo_arm64 { u32 reg_id_mmfr1; u32 reg_id_mmfr2; u32 reg_id_mmfr3; + u32 reg_id_mmfr5; u32 reg_id_pfr0; u32 reg_id_pfr1; u32 reg_id_pfr2; diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 2e1e922e1409..fe1725bbc4bb 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -155,6 +155,7 @@ #define SYS_MVFR2_EL1 sys_reg(3, 0, 0, 3, 2) #define SYS_ID_PFR2_EL1 sys_reg(3, 0, 0, 3, 4) #define SYS_ID_DFR1_EL1 sys_reg(3, 0, 0, 3, 5) +#define SYS_ID_MMFR5_EL1 sys_reg(3, 0, 0, 3, 6) #define SYS_ID_AA64PFR0_EL1 sys_reg(3, 0, 0, 4, 0) #define SYS_ID_AA64PFR1_EL1 sys_reg(3, 0, 0, 4, 1) @@ -789,6 +790,8 @@ #define ID_ISAR6_DP_SHIFT 4 #define ID_ISAR6_JSCVT_SHIFT 0 +#define ID_MMFR5_ETS_SHIFT 0 + #define ID_PFR2_SSBS_SHIFT 4 #define ID_PFR2_CSV3_SHIFT 0 diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 2ce952d9668d..c790cc200bb1 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -403,6 +403,11 @@ static const struct arm64_ftr_bits ftr_id_isar4[] = { ARM64_FTR_END, }; +static const struct arm64_ftr_bits ftr_id_mmfr5[] = { + ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_MMFR5_ETS_SHIFT, 4, 0), + ARM64_FTR_END, +}; + static const struct arm64_ftr_bits ftr_id_isar6[] = { ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_I8MM_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_BF16_SHIFT, 4, 0), @@ -527,6 +532,7 @@ static const struct __ftr_reg_entry { ARM64_FTR_REG(SYS_MVFR2_EL1, ftr_mvfr2), ARM64_FTR_REG(SYS_ID_PFR2_EL1, ftr_id_pfr2), ARM64_FTR_REG(SYS_ID_DFR1_EL1, ftr_id_dfr1), + ARM64_FTR_REG(SYS_ID_MMFR5_EL1, ftr_id_mmfr5), /* Op1 = 0, CRn = 0, CRm = 4 */ ARM64_FTR_REG(SYS_ID_AA64PFR0_EL1, ftr_id_aa64pfr0), @@ -732,6 +738,7 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info) init_cpu_ftr_reg(SYS_ID_MMFR1_EL1, info->reg_id_mmfr1); init_cpu_ftr_reg(SYS_ID_MMFR2_EL1, info->reg_id_mmfr2); init_cpu_ftr_reg(SYS_ID_MMFR3_EL1, info->reg_id_mmfr3); + init_cpu_ftr_reg(SYS_ID_MMFR5_EL1, info->reg_id_mmfr5); init_cpu_ftr_reg(SYS_ID_PFR0_EL1, info->reg_id_pfr0); init_cpu_ftr_reg(SYS_ID_PFR1_EL1, info->reg_id_pfr1); init_cpu_ftr_reg(SYS_ID_PFR2_EL1, info->reg_id_pfr2); @@ -866,6 +873,8 @@ static int update_32bit_cpu_features(int cpu, struct cpuinfo_arm64 *info, info->reg_id_mmfr2, boot->reg_id_mmfr2); taint |= check_update_ftr_reg(SYS_ID_MMFR3_EL1, cpu, info->reg_id_mmfr3, boot->reg_id_mmfr3); + taint |= check_update_ftr_reg(SYS_ID_MMFR5_EL1, cpu, + info->reg_id_mmfr5, boot->reg_id_mmfr5); taint |= check_update_ftr_reg(SYS_ID_PFR0_EL1, cpu, info->reg_id_pfr0, boot->reg_id_pfr0); taint |= check_update_ftr_reg(SYS_ID_PFR1_EL1, cpu, @@ -1006,6 +1015,7 @@ static u64 __read_sysreg_by_encoding(u32 sys_id) read_sysreg_case(SYS_ID_MMFR1_EL1); read_sysreg_case(SYS_ID_MMFR2_EL1); read_sysreg_case(SYS_ID_MMFR3_EL1); + read_sysreg_case(SYS_ID_MMFR5_EL1); read_sysreg_case(SYS_ID_ISAR0_EL1); read_sysreg_case(SYS_ID_ISAR1_EL1); read_sysreg_case(SYS_ID_ISAR2_EL1); diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 50a281703d9d..54579bf08f74 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -374,6 +374,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info) info->reg_id_mmfr1 = read_cpuid(ID_MMFR1_EL1); info->reg_id_mmfr2 = read_cpuid(ID_MMFR2_EL1); info->reg_id_mmfr3 = read_cpuid(ID_MMFR3_EL1); + info->reg_id_mmfr5 = read_cpuid(ID_MMFR5_EL1); info->reg_id_pfr0 = read_cpuid(ID_PFR0_EL1); info->reg_id_pfr1 = read_cpuid(ID_PFR1_EL1); info->reg_id_pfr2 = read_cpuid(ID_PFR2_EL1); diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index c78aa15aaac8..63b8c7534d26 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1458,7 +1458,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { ID_UNALLOCATED(3,3), ID_SANITISED(ID_PFR2_EL1), ID_SANITISED(ID_DFR1_EL1), - ID_UNALLOCATED(3,6), + ID_SANITISED(ID_MMFR5_EL1), ID_UNALLOCATED(3,7), /* AArch64 ID registers */ -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel