From patchwork Thu Aug 22 15:10:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joey Gouly X-Patchwork-Id: 13773642 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 00E141C9EBB; Thu, 22 Aug 2024 15:11:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724339499; cv=none; b=Zk5aNarPCBZN+iJ/vz9eganFf3Wymwu/g67Tzv4qoImKgeYOcurKP60nqqYOEP1354SaDWjjhDv2KRnnGOQedHmExY2ytu2Qr5pSaKNH5uBGrUeO7B/Xp4JLxuiqsWx8xlm+O9wdGTuf3y+zor2fpfTqhUUIgqxFtRrIo/4OQfo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724339499; c=relaxed/simple; bh=SYHG7e/ZfuUynIiAIglAqcGkd6gqqF4ktuzCFhTOZ5o=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=M381UYMgkc5SrvI+YSM56ymbjnxEY/e1DopPMlOkgAs9xT/AgvFiCX/NSk5+rUS+Js0xe+6QRcU9pOJEt89N6qBz4+vps0JpBwVlTLsTwHfq3aqYNelNjX6EDiTTwjXy8YMgd2DEAb5L2gKSJFDRHITSQ9Zpwtb+CMmm5GZarnI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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 6108A1595; Thu, 22 Aug 2024 08:12:03 -0700 (PDT) Received: from e124191.cambridge.arm.com (e124191.cambridge.arm.com [10.1.197.45]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 336263F58B; Thu, 22 Aug 2024 08:11:33 -0700 (PDT) From: Joey Gouly To: linux-arm-kernel@lists.infradead.org Cc: nd@arm.com, akpm@linux-foundation.org, aneesh.kumar@kernel.org, aneesh.kumar@linux.ibm.com, anshuman.khandual@arm.com, bp@alien8.de, broonie@kernel.org, catalin.marinas@arm.com, christophe.leroy@csgroup.eu, dave.hansen@linux.intel.com, hpa@zytor.com, joey.gouly@arm.com, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, maz@kernel.org, mingo@redhat.com, mpe@ellerman.id.au, naveen.n.rao@linux.ibm.com, npiggin@gmail.com, oliver.upton@linux.dev, shuah@kernel.org, skhan@linuxfoundation.org, szabolcs.nagy@arm.com, tglx@linutronix.de, will@kernel.org, x86@kernel.org, kvmarm@lists.linux.dev, linux-kselftest@vger.kernel.org Subject: [PATCH v5 03/30] mm: use ARCH_PKEY_BITS to define VM_PKEY_BITN Date: Thu, 22 Aug 2024 16:10:46 +0100 Message-Id: <20240822151113.1479789-4-joey.gouly@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240822151113.1479789-1-joey.gouly@arm.com> References: <20240822151113.1479789-1-joey.gouly@arm.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Use the new CONFIG_ARCH_PKEY_BITS to simplify setting these bits for different architectures. Signed-off-by: Joey Gouly Cc: Andrew Morton Cc: linux-fsdevel@vger.kernel.org Cc: linux-mm@kvack.org Acked-by: Dave Hansen Reviewed-by: Anshuman Khandual --- fs/proc/task_mmu.c | 2 ++ include/linux/mm.h | 16 ++++++++++------ 2 files changed, 12 insertions(+), 6 deletions(-) diff --git fs/proc/task_mmu.c fs/proc/task_mmu.c index 5f171ad7b436..2c5f4814aef9 100644 --- fs/proc/task_mmu.c +++ fs/proc/task_mmu.c @@ -976,7 +976,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma) [ilog2(VM_PKEY_BIT0)] = "", [ilog2(VM_PKEY_BIT1)] = "", [ilog2(VM_PKEY_BIT2)] = "", +#if VM_PKEY_BIT3 [ilog2(VM_PKEY_BIT3)] = "", +#endif #if VM_PKEY_BIT4 [ilog2(VM_PKEY_BIT4)] = "", #endif diff --git include/linux/mm.h include/linux/mm.h index 6549d0979b28..56dc2481cc0f 100644 --- include/linux/mm.h +++ include/linux/mm.h @@ -330,12 +330,16 @@ extern unsigned int kobjsize(const void *objp); #endif /* CONFIG_ARCH_USES_HIGH_VMA_FLAGS */ #ifdef CONFIG_ARCH_HAS_PKEYS -# define VM_PKEY_SHIFT VM_HIGH_ARCH_BIT_0 -# define VM_PKEY_BIT0 VM_HIGH_ARCH_0 /* A protection key is a 4-bit value */ -# define VM_PKEY_BIT1 VM_HIGH_ARCH_1 /* on x86 and 5-bit value on ppc64 */ -# define VM_PKEY_BIT2 VM_HIGH_ARCH_2 -# define VM_PKEY_BIT3 VM_HIGH_ARCH_3 -#ifdef CONFIG_PPC +# define VM_PKEY_SHIFT VM_HIGH_ARCH_BIT_0 +# define VM_PKEY_BIT0 VM_HIGH_ARCH_0 +# define VM_PKEY_BIT1 VM_HIGH_ARCH_1 +# define VM_PKEY_BIT2 VM_HIGH_ARCH_2 +#if CONFIG_ARCH_PKEY_BITS > 3 +# define VM_PKEY_BIT3 VM_HIGH_ARCH_3 +#else +# define VM_PKEY_BIT3 0 +#endif +#if CONFIG_ARCH_PKEY_BITS > 4 # define VM_PKEY_BIT4 VM_HIGH_ARCH_4 #else # define VM_PKEY_BIT4 0