Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757290AbYFYElw (ORCPT ); Wed, 25 Jun 2008 00:41:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755446AbYFYEhX (ORCPT ); Wed, 25 Jun 2008 00:37:23 -0400 Received: from 9.sub-70-198-159.myvzw.com ([70.198.159.9]:37451 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753387AbYFYEhQ (ORCPT ); Wed, 25 Jun 2008 00:37:16 -0400 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [PATCH 10 of 36] x86: unify pgd_index X-Mercurial-Node: bbbf042d3854bc723ef096c6736ba46d3f4093e7 Message-Id: In-Reply-To: Date: Wed, 25 Jun 2008 00:19:06 -0400 From: Jeremy Fitzhardinge To: Ingo Molnar Cc: LKML , x86@kernel.org, xen-devel , Stephen Tweedie , Eduardo Habkost , Mark McLoughlin , x86@kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3234 Lines: 89 pgd_index is common for 32 and 64-bit, so move it to a common place. Signed-off-by: Jeremy Fitzhardinge --- include/asm-x86/pgtable.h | 20 ++++++++++++++++++++ include/asm-x86/pgtable_32.h | 20 -------------------- include/asm-x86/pgtable_64.h | 3 --- 3 files changed, 20 insertions(+), 23 deletions(-) diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -357,6 +357,26 @@ # include "pgtable_64.h" #endif +/* + * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD] + * + * this macro returns the index of the entry in the pgd page which would + * control the given virtual address + */ +#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) + +/* + * pgd_offset() returns a (pgd_t *) + * pgd_index() is used get the offset into the pgd page's array of pgd_t's; + */ +#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address))) +/* + * a shortcut which implies the use of the kernel's pgd, instead + * of a process's + */ +#define pgd_offset_k(address) pgd_offset(&init_mm, (address)) + + #define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET) #define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY) diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -119,26 +119,6 @@ */ #define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) -/* - * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD] - * - * this macro returns the index of the entry in the pgd page which would - * control the given virtual address - */ -#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) -#define pgd_index_k(addr) pgd_index((addr)) - -/* - * pgd_offset() returns a (pgd_t *) - * pgd_index() is used get the offset into the pgd page's array of pgd_t's; - */ -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address))) - -/* - * a shortcut which implies the use of the kernel's pgd, instead - * of a process's - */ -#define pgd_offset_k(address) pgd_offset(&init_mm, (address)) static inline int pud_large(pud_t pud) { return 0; } diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h --- a/include/asm-x86/pgtable_64.h +++ b/include/asm-x86/pgtable_64.h @@ -196,9 +196,6 @@ #define pgd_page_vaddr(pgd) \ ((unsigned long)__va((unsigned long)pgd_val((pgd)) & PTE_MASK)) #define pgd_page(pgd) (pfn_to_page(pgd_val((pgd)) >> PAGE_SHIFT)) -#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address))) -#define pgd_offset_k(address) (init_level4_pgt + pgd_index((address))) #define pgd_present(pgd) (pgd_val(pgd) & _PAGE_PRESENT) static inline int pgd_large(pgd_t pgd) { return 0; } #define mk_kernel_pgd(address) __pgd((address) | _KERNPG_TABLE) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/