From patchwork Sat Oct 5 12:38:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 13823270 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B653BCF886F for ; Sat, 5 Oct 2024 12:40:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xSheVXWToGngpxUQ6EtHiX5jIucPpd49XZ5pC56MEdc=; b=zuO2Lnx7VEWFBlRoJDXO+lfcvc CKQDmI/3dqIWLox2DgARQzA6tt1Du2YXkycGTwSiRL8jxrYcnnR/52lLembSZLIMkYEazjTfoEiwZ lniReXt2N4GLpcCnoDzgzIaaBUEHn27TsIws89tsnTNkNNRxNnmP/gPKj9NOV6Tl19IhiTTQWPHW2 U+dpsuuSWsPtJ+/zPGJzpTCG5ByMmKpvJImhZr0gqfBAhjtXaHaE7P8FabwUViej/oaUizqkcPZs2 oQ2ftyYggB5VWWJywc7sP3Y22AfyrwezjlsQzA/YG3NjIyBhjblEcbnDqVqb5UAAwD+Zg1I1GdroO lmM2duXQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sx44h-0000000FLnp-3xro; Sat, 05 Oct 2024 12:39:55 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sx43P-0000000FLSl-0jOZ for linux-arm-kernel@lists.infradead.org; Sat, 05 Oct 2024 12:38:37 +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 D8D0D1063; Sat, 5 Oct 2024 05:39:03 -0700 (PDT) Received: from a077893.arm.com (unknown [10.163.39.26]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 8BC6B3F64C; Sat, 5 Oct 2024 05:38:30 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Marc Zyngier , Oliver Upton , James Morse , Catalin Marinas , Will Deacon , Ard Biesheuvel , Ryan Roberts , Mark Rutland , kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 1/5] arm64/mm: Drop pte_mkhuge() Date: Sat, 5 Oct 2024 18:08:20 +0530 Message-Id: <20241005123824.1366397-2-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241005123824.1366397-1-anshuman.khandual@arm.com> References: <20241005123824.1366397-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241005_053835_519081_F0724FD0 X-CRM114-Status: GOOD ( 13.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Core HugeTLB defines arch_make_huge_pte() fallback definition, which calls platform provided pte_mkhuge(). But if any platform already provides custom arch_make_huge_pte(), then it does not need to provide pte_mkhuge(). arm64 defines arch_make_huge_pte(), but then also calls pte_mkhuge() internally. This creates confusion as if both of these callbacks are being used in core HugeTLB and required to be defined in the platform. This changes arch_make_huge_pte() to create block mapping directly and also drops off now redundant helper pte_mkhuge(), making things clear. Also this changes HugeTLB page creation from just clearing the PTE_TABLE_BIT (bit[1]) to actually setting bits[1:0] via PTE_TYPE_[MASK|SECT] instead. Cc: Catalin Marinas Cc: Will Deacon Cc: Ard Biesheuvel Cc: Ryan Roberts Cc: Mark Rutland Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/arm64/include/asm/pgtable-hwdef.h | 1 + arch/arm64/include/asm/pgtable.h | 5 ----- arch/arm64/mm/hugetlbpage.c | 2 +- 3 files changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index fd330c1db289..956a702cb532 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -158,6 +158,7 @@ #define PTE_VALID (_AT(pteval_t, 1) << 0) #define PTE_TYPE_MASK (_AT(pteval_t, 3) << 0) #define PTE_TYPE_PAGE (_AT(pteval_t, 3) << 0) +#define PTE_TYPE_SECT (_AT(pteval_t, 1) << 0) #define PTE_TABLE_BIT (_AT(pteval_t, 1) << 1) #define PTE_USER (_AT(pteval_t, 1) << 6) /* AP[1] */ #define PTE_RDONLY (_AT(pteval_t, 1) << 7) /* AP[2] */ diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index c329ea061dc9..fa4c32a9f572 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -438,11 +438,6 @@ static inline void __set_ptes(struct mm_struct *mm, } } -/* - * Huge pte definitions. - */ -#define pte_mkhuge(pte) (__pte(pte_val(pte) & ~PTE_TABLE_BIT)) - /* * Hugetlb definitions. */ diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index 5f1e2103888b..5922c95630ad 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -361,7 +361,7 @@ pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags) { size_t pagesize = 1UL << shift; - entry = pte_mkhuge(entry); + entry = __pte((pte_val(entry) & ~PTE_TYPE_MASK) | PTE_TYPE_SECT); if (pagesize == CONT_PTE_SIZE) { entry = pte_mkcont(entry); } else if (pagesize == CONT_PMD_SIZE) { From patchwork Sat Oct 5 12:38:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 13823272 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id D16A4CF886F for ; Sat, 5 Oct 2024 12:42:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; 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Sat, 5 Oct 2024 05:38:34 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Marc Zyngier , Oliver Upton , James Morse , Catalin Marinas , Will Deacon , Ard Biesheuvel , Ryan Roberts , Mark Rutland , kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 2/5] arm64/mm: Replace PXD_TABLE_BIT with PXD_TYPE_[MASK|SECT] Date: Sat, 5 Oct 2024 18:08:21 +0530 Message-Id: <20241005123824.1366397-3-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241005123824.1366397-1-anshuman.khandual@arm.com> References: <20241005123824.1366397-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241005_053839_207208_1632FCB0 X-CRM114-Status: GOOD ( 10.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This modifies existing block mapping related helpers e.g [pmd|pud]_mkhuge() , mk_[pmd|pud]_sect_prot() and pmd_trans_huge() to use PXD_TYPE_[MASK|SECT] instead of corresponding PXD_TABLE_BIT. This also moves pmd_sect() earlier for the symbol's availability preventing a build warning. While here this also drops pmd_val() check from pmd_trans_huge() helper, as pmd_present() returning true already ensures that pmd_val() cannot be false Cc: Catalin Marinas Cc: Will Deacon Cc: Ard Biesheuvel Cc: Ryan Roberts Cc: Mark Rutland Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/arm64/include/asm/pgtable.h | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index fa4c32a9f572..45c49c5ace80 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -484,12 +484,12 @@ static inline pmd_t pte_pmd(pte_t pte) static inline pgprot_t mk_pud_sect_prot(pgprot_t prot) { - return __pgprot((pgprot_val(prot) & ~PUD_TABLE_BIT) | PUD_TYPE_SECT); + return __pgprot((pgprot_val(prot) & ~PUD_TYPE_MASK) | PUD_TYPE_SECT); } static inline pgprot_t mk_pmd_sect_prot(pgprot_t prot) { - return __pgprot((pgprot_val(prot) & ~PMD_TABLE_BIT) | PMD_TYPE_SECT); + return __pgprot((pgprot_val(prot) & ~PMD_TYPE_MASK) | PMD_TYPE_SECT); } static inline pte_t pte_swp_mkexclusive(pte_t pte) @@ -554,10 +554,13 @@ static inline int pmd_protnone(pmd_t pmd) * THP definitions. */ +#define pmd_sect(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \ + PMD_TYPE_SECT) + #ifdef CONFIG_TRANSPARENT_HUGEPAGE static inline int pmd_trans_huge(pmd_t pmd) { - return pmd_val(pmd) && pmd_present(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT); + return pmd_present(pmd) && pmd_sect(pmd); } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ @@ -586,7 +589,7 @@ static inline int pmd_trans_huge(pmd_t pmd) #define pmd_write(pmd) pte_write(pmd_pte(pmd)) -#define pmd_mkhuge(pmd) (__pmd(pmd_val(pmd) & ~PMD_TABLE_BIT)) +#define pmd_mkhuge(pmd) (__pmd((pmd_val(pmd) & ~PMD_TYPE_MASK) | PMD_TYPE_SECT)) #ifdef CONFIG_TRANSPARENT_HUGEPAGE #define pmd_devmap(pmd) pte_devmap(pmd_pte(pmd)) @@ -614,7 +617,7 @@ static inline pmd_t pmd_mkspecial(pmd_t pmd) #define pud_mkyoung(pud) pte_pud(pte_mkyoung(pud_pte(pud))) #define pud_write(pud) pte_write(pud_pte(pud)) -#define pud_mkhuge(pud) (__pud(pud_val(pud) & ~PUD_TABLE_BIT)) +#define pud_mkhuge(pud) (__pud((pud_val(pud) & ~PUD_TYPE_MASK) | PUD_TYPE_SECT)) #define __pud_to_phys(pud) __pte_to_phys(pud_pte(pud)) #define __phys_to_pud_val(phys) __phys_to_pte_val(phys) @@ -712,8 +715,6 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, #define pmd_table(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \ PMD_TYPE_TABLE) -#define pmd_sect(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \ - PMD_TYPE_SECT) #define pmd_leaf(pmd) (pmd_present(pmd) && !pmd_table(pmd)) #define pmd_bad(pmd) (!pmd_table(pmd)) From patchwork Sat Oct 5 12:38:22 2024 Content-Type: text/plain; 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Sat, 5 Oct 2024 05:38:39 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Marc Zyngier , Oliver Upton , James Morse , Catalin Marinas , Will Deacon , Ard Biesheuvel , Ryan Roberts , Mark Rutland , kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 3/5] arm64/ptdump: Test PMD_TYPE_MASK for block mapping Date: Sat, 5 Oct 2024 18:08:22 +0530 Message-Id: <20241005123824.1366397-4-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241005123824.1366397-1-anshuman.khandual@arm.com> References: <20241005123824.1366397-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241005_053843_693613_4A483600 X-CRM114-Status: GOOD ( 10.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org arm64 block mapping requires given page table entry's bits[1:0] to be "01". But now only bit[1] is checked to be clear, while also implicitly assuming bit[0] to be set. This modifies ptdump to check both the relevant bits via the mask PMD_TYPE_MASK and check the resultant value against PMD_TYPE_MASK. Cc: Catalin Marinas Cc: Will Deacon Cc: Ard Biesheuvel Cc: Ryan Roberts Cc: Mark Rutland Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/arm64/mm/ptdump.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/mm/ptdump.c b/arch/arm64/mm/ptdump.c index 264c5f9b97d8..8cec0da4cff2 100644 --- a/arch/arm64/mm/ptdump.c +++ b/arch/arm64/mm/ptdump.c @@ -80,10 +80,10 @@ static const struct ptdump_prot_bits pte_bits[] = { .set = "CON", .clear = " ", }, { - .mask = PTE_TABLE_BIT, - .val = PTE_TABLE_BIT, - .set = " ", - .clear = "BLK", + .mask = PMD_TYPE_MASK, + .val = PMD_TYPE_SECT, + .set = "BLK", + .clear = " ", }, { .mask = PTE_UXN, .val = PTE_UXN, From patchwork Sat Oct 5 12:38:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 13823278 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 4DB1DCF8862 for ; Sat, 5 Oct 2024 12:45:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=r1twv3o8UwbH4PX5y/1Ie++4b8kx+AsqHHN0deYUqwY=; b=4FsOEbyl0AU1kt4Ua6p3ptvCxh mgwq9Lkl1erWFxbeOiYt147LzDC0oJBTdq5FnpEVZVtTX7ugsDYGGrcnRJi3nKRei3aRQvxWwRB2o CMLxmEwNk7OPnXk++B4G9OqcquM3bQoORs1tsRPE/aoXfsOVrqaqgslaSwAyeQ+3FZ285Ylf6fN/q vgVp2HUdchH6F35IqpjHrjOGiSnm5sq2D9j4I5d1Lwf5DbzaW9yzcO83ckSW8CvOBmfuw+TiOQ8Fw JLSIt/jGX6ZmNXQF8kevp2TM2GvwycbKRkGPqfe09VMoin3O/2jYKpIMkGA3h3k9LEJUgvs1xyWCy pkNiR+tg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sx49f-0000000FMEN-0oEs; Sat, 05 Oct 2024 12:45:03 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sx43b-0000000FLVL-3HOq for linux-arm-kernel@lists.infradead.org; Sat, 05 Oct 2024 12:38:49 +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 074A11063; Sat, 5 Oct 2024 05:39:17 -0700 (PDT) Received: from a077893.arm.com (unknown [10.163.39.26]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id A24133F64C; Sat, 5 Oct 2024 05:38:43 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Marc Zyngier , Oliver Upton , James Morse , Catalin Marinas , Will Deacon , Ard Biesheuvel , Ryan Roberts , Mark Rutland , kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 4/5] KVM: arm64: ptdump: Test PMD_TYPE_MASK for block mapping Date: Sat, 5 Oct 2024 18:08:23 +0530 Message-Id: <20241005123824.1366397-5-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241005123824.1366397-1-anshuman.khandual@arm.com> References: <20241005123824.1366397-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241005_053847_885695_66A79062 X-CRM114-Status: GOOD ( 11.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This changes stage-2 ptdump making it test given page table entries against PMD_TYPE_SECT on PMD_TYPE_MASK bits for a block mapping, as is the case for stage-1 ptdump. Cc: Marc Zyngier Cc: Oliver Upton Cc: James Morse Cc: Catalin Marinas Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: kvmarm@lists.linux.dev Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/arm64/kvm/ptdump.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/kvm/ptdump.c b/arch/arm64/kvm/ptdump.c index e4a342e903e2..098416d7e5c2 100644 --- a/arch/arm64/kvm/ptdump.c +++ b/arch/arm64/kvm/ptdump.c @@ -52,8 +52,8 @@ static const struct ptdump_prot_bits stage2_pte_bits[] = { .set = "AF", .clear = " ", }, { - .mask = PTE_TABLE_BIT | PTE_VALID, - .val = PTE_VALID, + .mask = PMD_TYPE_MASK, + .val = PMD_TYPE_SECT, .set = "BLK", .clear = " ", }, From patchwork Sat Oct 5 12:38:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 13823279 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 68337CF8878 for ; Sat, 5 Oct 2024 12:46:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=l4ry+7y1Yl8fj2igQLet7pY3JMHfhZf0ZHRjiNVgEHU=; b=QMHbZWSWbb3QvTNocD/sJZ45St HbsPYxvB9Io2X+XWR8MBwypZX8Ol33RBHqsuwLSgzMItySsVcm7gpHxZtiBuk65c0qe1glMpTT6Ao p/lJkWyoBrMNREUvkPLoKj1IgiUU96UFSTzcVYUM06l6Ca+905ReUKzJkEE/ptv67w2ku+7XKjEmh jjRzt2hdyusAt2Kf1lYQqTskMUOjLyW7frbVeMHn3L0OkngagLTHJ51P8ETHWjNPkOTQEfMTBs9L2 4rPsYnjxUtKCg1XlY3Imn9sLyVuluYbSJlsVkWQ5XxMrOMpmdwljCYZI5YGJAm9ojo7nLuvVmvL6E 4iYFt1RA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sx4Au-0000000FMKw-0iH2; Sat, 05 Oct 2024 12:46:20 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sx43g-0000000FLXe-3Cj5 for linux-arm-kernel@lists.infradead.org; Sat, 05 Oct 2024 12:38:54 +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 5845D1063; Sat, 5 Oct 2024 05:39:21 -0700 (PDT) Received: from a077893.arm.com (unknown [10.163.39.26]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 0BCF33F64C; Sat, 5 Oct 2024 05:38:47 -0700 (PDT) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Marc Zyngier , Oliver Upton , James Morse , Catalin Marinas , Will Deacon , Ard Biesheuvel , Ryan Roberts , Mark Rutland , kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 5/5] arm64/mm: Drop PXD_TABLE_BIT Date: Sat, 5 Oct 2024 18:08:24 +0530 Message-Id: <20241005123824.1366397-6-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241005123824.1366397-1-anshuman.khandual@arm.com> References: <20241005123824.1366397-1-anshuman.khandual@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241005_053852_870184_185762CD X-CRM114-Status: UNSURE ( 7.47 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This just drops table bit position markers for all page table levels, which are not used any more. Cc: Catalin Marinas Cc: Will Deacon Cc: Ard Biesheuvel Cc: Ryan Roberts Cc: Mark Rutland Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/arm64/include/asm/pgtable-hwdef.h | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index 956a702cb532..a524a8bb570f 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -97,7 +97,6 @@ * Level -1 descriptor (PGD). */ #define PGD_TYPE_TABLE (_AT(pgdval_t, 3) << 0) -#define PGD_TABLE_BIT (_AT(pgdval_t, 1) << 1) #define PGD_TYPE_MASK (_AT(pgdval_t, 3) << 0) #define PGD_TABLE_PXN (_AT(pgdval_t, 1) << 59) #define PGD_TABLE_UXN (_AT(pgdval_t, 1) << 60) @@ -106,7 +105,6 @@ * Level 0 descriptor (P4D). */ #define P4D_TYPE_TABLE (_AT(p4dval_t, 3) << 0) -#define P4D_TABLE_BIT (_AT(p4dval_t, 1) << 1) #define P4D_TYPE_MASK (_AT(p4dval_t, 3) << 0) #define P4D_TYPE_SECT (_AT(p4dval_t, 1) << 0) #define P4D_SECT_RDONLY (_AT(p4dval_t, 1) << 7) /* AP[2] */ @@ -117,7 +115,6 @@ * Level 1 descriptor (PUD). */ #define PUD_TYPE_TABLE (_AT(pudval_t, 3) << 0) -#define PUD_TABLE_BIT (_AT(pudval_t, 1) << 1) #define PUD_TYPE_MASK (_AT(pudval_t, 3) << 0) #define PUD_TYPE_SECT (_AT(pudval_t, 1) << 0) #define PUD_SECT_RDONLY (_AT(pudval_t, 1) << 7) /* AP[2] */ @@ -130,7 +127,6 @@ #define PMD_TYPE_MASK (_AT(pmdval_t, 3) << 0) #define PMD_TYPE_TABLE (_AT(pmdval_t, 3) << 0) #define PMD_TYPE_SECT (_AT(pmdval_t, 1) << 0) -#define PMD_TABLE_BIT (_AT(pmdval_t, 1) << 1) /* * Section @@ -159,7 +155,6 @@ #define PTE_TYPE_MASK (_AT(pteval_t, 3) << 0) #define PTE_TYPE_PAGE (_AT(pteval_t, 3) << 0) #define PTE_TYPE_SECT (_AT(pteval_t, 1) << 0) -#define PTE_TABLE_BIT (_AT(pteval_t, 1) << 1) #define PTE_USER (_AT(pteval_t, 1) << 6) /* AP[1] */ #define PTE_RDONLY (_AT(pteval_t, 1) << 7) /* AP[2] */ #define PTE_SHARED (_AT(pteval_t, 3) << 8) /* SH[1:0], inner shareable */