From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-la0-f48.google.com (mail-la0-f48.google.com [209.85.215.48]) by kanga.kvack.org (Postfix) with ESMTP id C8AF382F5F for ; Mon, 10 Aug 2015 18:23:02 -0400 (EDT) Received: by lalv9 with SMTP id v9so18668118lal.0 for ; Mon, 10 Aug 2015 15:23:02 -0700 (PDT) Received: from mail-la0-x233.google.com (mail-la0-x233.google.com. [2a00:1450:4010:c03::233]) by mx.google.com with ESMTPS id p11si15303084lal.55.2015.08.10.15.23.00 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 10 Aug 2015 15:23:01 -0700 (PDT) Received: by lalv9 with SMTP id v9so18667912lal.0 for ; Mon, 10 Aug 2015 15:23:00 -0700 (PDT) From: Andrey Ryabinin Subject: [PATCH v5 3/6] arm64: introduce VA_START macro - the first kernel virtual address. Date: Tue, 11 Aug 2015 05:18:16 +0300 Message-Id: <1439259499-13913-4-git-send-email-ryabinin.a.a@gmail.com> In-Reply-To: <1439259499-13913-1-git-send-email-ryabinin.a.a@gmail.com> References: <1439259499-13913-1-git-send-email-ryabinin.a.a@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org Cc: Andrey Ryabinin , Arnd Bergmann , Linus Walleij , David Keitel , Alexander Potapenko , Andrew Morton , Dmitry Vyukov , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Alexey Klimov , Yury , "Aneesh Kumar K.V" In order to not use lengthy (UL(0xffffffffffffffff) << VA_BITS) everywhere, replace it with VA_START. Signed-off-by: Andrey Ryabinin Reviewed-by: Catalin Marinas --- 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)) -- 2.4.6 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org