From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933919AbbGVKa4 (ORCPT ); Wed, 22 Jul 2015 06:30:56 -0400 Received: from mailout2.w1.samsung.com ([210.118.77.12]:58924 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751706AbbGVKav (ORCPT ); Wed, 22 Jul 2015 06:30:51 -0400 X-AuditID: cbfec7f4-f79c56d0000012ee-67-55af70d9f5a8 From: Andrey Ryabinin To: Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org Cc: Dmitry Vyukov , Alexander Potapenko , David Keitel , Arnd Bergmann , Andrew Morton , linux-mm@kvack.org, Linus Walleij , Andrey Ryabinin , linux-kernel@vger.kernel.org Subject: [PATCH v3 2/5] arm64: introduce VA_START macro - the first kernel virtual address. Date: Wed, 22 Jul 2015 13:30:34 +0300 Message-id: <1437561037-31995-3-git-send-email-a.ryabinin@samsung.com> X-Mailer: git-send-email 2.4.5 In-reply-to: <1437561037-31995-1-git-send-email-a.ryabinin@samsung.com> References: <1437561037-31995-1-git-send-email-a.ryabinin@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrELMWRmVeSWpSXmKPExsVy+t/xa7o3C9aHGiw/xmWx7dcjNos569ew WfyddIzd4v2yHkaL3ZeeMVtMeNjGbtH+cS+zxZQ/y5ksNj2+xmpxedccNot7a/6zWrz8eILF gcdjzbw1jB6/f01i9Ljc18vksWBTqcemT5PYPe5c28PmcWLGbxaPzUvqPfq2rGL0+LxJLoAr issmJTUnsyy1SN8ugStjwbZprAUr+Cq6v8xgamD8xN3FyMEhIWAicfJATBcjJ5ApJnHh3nq2 LkYuDiGBpYwSr5b/hnKamCRu3TnMDlLFJqAn8W/WdjYQW0SgQuLq1QmMIDazwAUmiZ6JXCC2 sECsxPct95hBbBYBVYmpk5aB1fAKuElsmDqRFWKxnMTS5lqQMKeAu8T5s/vByoWASv5/+sA0 gZF3ASPDKkbR1NLkguKk9FxDveLE3OLSvHS95PzcTYyQkP2yg3HxMatDjAIcjEo8vBOOrgsV Yk0sK67MPcQowcGsJML7Imt9qBBvSmJlVWpRfnxRaU5q8SFGaQ4WJXHeubvehwgJpCeWpGan phakFsFkmTg4pRoY7XfH/oqf7TJ70a3ovfw6a17+PLzEQ6yTfdNBHp63zUyH/34/931n0/yT 784zf1q/xSDJNDOLs0m6jS3mTbLxlk87RY2D/3duD/79lmt57JnUsHxz9QCVy0lsq95HBbzj ebD+6vaS5ASFDc3XgkOqN0dHBWYd+P6/sP/cbOsfvXwXDVevnfr4qhJLcUaioRZzUXEiAOGo yK9VAgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In order to not use lengthy (UL(0xffffffffffffffff) << VA_BITS) everywhere, replace it with VA_START. Signed-off-by: Andrey Ryabinin --- arch/arm64/include/asm/memory.h | 2 ++ arch/arm64/include/asm/pgtable.h | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index f800d45..288c19d 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -42,12 +42,14 @@ * PAGE_OFFSET - the virtual address of the start of the kernel image (top * (VA_BITS - 1)) * VA_BITS - the maximum number of bits for virtual addresses. + * VA_START - the first kernel virtual address. * TASK_SIZE - the maximum size of a user space task. * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area. * The module space lives between the addresses given by TASK_SIZE * and PAGE_OFFSET - it must be within 128MB of the kernel text. */ #define VA_BITS (CONFIG_ARM64_VA_BITS) +#define VA_START (UL(0xffffffffffffffff) << VA_BITS) #define PAGE_OFFSET (UL(0xffffffffffffffff) << (VA_BITS - 1)) #define MODULES_END (PAGE_OFFSET) #define MODULES_VADDR (MODULES_END - SZ_64M) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 56283f8..a1f9f61 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -40,7 +40,7 @@ * fixed mappings and modules */ #define VMEMMAP_SIZE ALIGN((1UL << (VA_BITS - PAGE_SHIFT)) * sizeof(struct page), PUD_SIZE) -#define VMALLOC_START (UL(0xffffffffffffffff) << VA_BITS) +#define VMALLOC_START (VA_START) #define VMALLOC_END (PAGE_OFFSET - PUD_SIZE - VMEMMAP_SIZE - SZ_64K) #define vmemmap ((struct page *)(VMALLOC_END + SZ_64K)) -- 2.4.5