From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754580AbbIQJiX (ORCPT ); Thu, 17 Sep 2015 05:38:23 -0400 Received: from mail-la0-f45.google.com ([209.85.215.45]:33188 "EHLO mail-la0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754109AbbIQJiT (ORCPT ); Thu, 17 Sep 2015 05:38:19 -0400 From: Andrey Ryabinin To: Will Deacon , Catalin Marinas , linux-arm-kernel@lists.infradead.org Cc: Andrey Ryabinin , Linus Walleij , Alexander Potapenko , Dmitry Vyukov , Arnd Bergmann , linux-kernel@vger.kernel.org, David Keitel , linux-mm@kvack.org, Alexey Klimov , Yury , Andrey Konovalov Subject: [PATCH v6 1/6] arm64: introduce VA_START macro - the first kernel virtual address. Date: Thu, 17 Sep 2015 12:38:07 +0300 Message-Id: <1442482692-6416-2-git-send-email-ryabinin.a.a@gmail.com> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1442482692-6416-1-git-send-email-ryabinin.a.a@gmail.com> References: <1442482692-6416-1-git-send-email-ryabinin.a.a@gmail.com> 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 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 6b4c3ad..11ccf6c 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 6900b2d9..a53a126 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -45,7 +45,7 @@ * 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