Message ID | 20230912141549.278777-72-ardb@google.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Tue, 12 Sep 2023 07:17:35 -0700 (PDT) Date: Tue, 12 Sep 2023 14:15:59 +0000 In-Reply-To: <20230912141549.278777-63-ardb@google.com> Mime-Version: 1.0 References: <20230912141549.278777-63-ardb@google.com> X-Developer-Key: i=ardb@kernel.org; a=openpgp; fpr=F43D03328115A198C90016883D200E9CA6329909 X-Developer-Signature: v=1; a=openpgp-sha256; l=1790; i=ardb@kernel.org; h=from:subject; bh=Z86mK7KgtSrSmoFooFJ6pjc/HBeI+NJWVcvgU20xk4k=; b=owGbwMvMwCFmkMcZplerG8N4Wi2JIZWhaL6EafDlzb8q5FWYl8m8Ohls/v+TkLY105O3/6flv V7aeFCgo5SFQYyDQVZMkUVg9t93O09PlKp1niULM4eVCWQIAxenAEyk7x0jw/U/BZWhAjOYD2Ve 2XeF8YORZPDOHD/XPWrWUp82LRX1/MDI8PPojcOCAU1v8+/fSZYKPnrvzeYZyQlr8xlPzWyr7vA L4wIA X-Mailer: git-send-email 2.42.0.283.g2d96d420d3-goog Message-ID: <20230912141549.278777-72-ardb@google.com> Subject: [PATCH v4 09/61] arm64: mm: Reclaim unused vmemmap region for vmalloc use From: Ard Biesheuvel <ardb@google.com> To: linux-arm-kernel@lists.infradead.org Cc: Ard Biesheuvel <ardb@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Ryan Roberts <ryan.roberts@arm.com>, Anshuman Khandual <anshuman.khandual@arm.com>, Kees Cook <keescook@chromium.org>, Joey Gouly <joey.gouly@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230912_071737_470447_60F8632E X-CRM114-Status: GOOD ( 15.95 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org |
Series |
arm64: Add support for LPA2 at stage1 and WXN
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expand
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diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 01fddcc2ae4d..1858abd51b8f 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -18,11 +18,15 @@ * VMALLOC range. * * VMALLOC_START: beginning of the kernel vmalloc space - * VMALLOC_END: extends to the available space below vmemmap, PCI I/O space - * and fixed mappings + * VMALLOC_END: extends to the available space below vmemmap */ #define VMALLOC_START (MODULES_END) +#if VA_BITS == VA_BITS_MIN #define VMALLOC_END (VMEMMAP_START - SZ_8M) +#else +#define VMEMMAP_UNUSED_NPAGES ((_PAGE_OFFSET(vabits_actual) - PAGE_OFFSET) >> PAGE_SHIFT) +#define VMALLOC_END (VMEMMAP_START + VMEMMAP_UNUSED_NPAGES * sizeof(struct page) - SZ_8M) +#endif #define vmemmap ((struct page *)VMEMMAP_START - (memstart_addr >> PAGE_SHIFT))