Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756694Ab0KLSBF (ORCPT ); Fri, 12 Nov 2010 13:01:05 -0500 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:50892 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756421Ab0KLSBC (ORCPT ); Fri, 12 Nov 2010 13:01:02 -0500 From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 01/20] ARM: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_* Date: Fri, 12 Nov 2010 18:00:21 +0000 Message-Id: <1289584840-18097-2-git-send-email-catalin.marinas@arm.com> X-Mailer: git-send-email 1.7.3.2.164.g6f10c In-Reply-To: <1289584840-18097-1-git-send-email-catalin.marinas@arm.com> References: <1289584840-18097-1-git-send-email-catalin.marinas@arm.com> X-OriginalArrivalTime: 12 Nov 2010 18:00:48.0282 (UTC) FILETIME=[8923CFA0:01CB8293] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4855 Lines: 132 PGDIR_SHIFT and PMD_SHIFT for the classic 2-level page table format have the same value (21). This patch converts the PGDIR_* uses in the kernel to the PMD_* equivalent. Signed-off-by: Catalin Marinas --- arch/arm/kernel/module.c | 2 +- arch/arm/kernel/smp.c | 4 ++-- arch/arm/mm/dma-mapping.c | 6 +++--- arch/arm/mm/mmu.c | 16 ++++++++-------- 4 files changed, 14 insertions(+), 14 deletions(-) diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c index d9bd786..6b30f01 100644 --- a/arch/arm/kernel/module.c +++ b/arch/arm/kernel/module.c @@ -32,7 +32,7 @@ * recompiling the whole kernel when CONFIG_XIP_KERNEL is turned on/off. */ #undef MODULES_VADDR -#define MODULES_VADDR (((unsigned long)_etext + ~PGDIR_MASK) & PGDIR_MASK) +#define MODULES_VADDR (((unsigned long)_etext + ~PMD_MASK) & PMD_MASK) #endif #ifdef CONFIG_MMU diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 8c19595..40b386c 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -78,7 +78,7 @@ static inline void identity_mapping_add(pgd_t *pgd, unsigned long start, if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ && !cpu_is_xscale()) prot |= PMD_BIT4; - for (addr = start & PGDIR_MASK; addr < end;) { + for (addr = start & PMD_MASK; addr < end;) { pmd = pmd_offset(pgd + pgd_index(addr), addr); pmd[0] = __pmd(addr | prot); addr += SECTION_SIZE; @@ -95,7 +95,7 @@ static inline void identity_mapping_del(pgd_t *pgd, unsigned long start, unsigned long addr; pmd_t *pmd; - for (addr = start & PGDIR_MASK; addr < end; addr += PGDIR_SIZE) { + for (addr = start & PMD_MASK; addr < end; addr += PMD_SIZE) { pmd = pmd_offset(pgd + pgd_index(addr), addr); pmd[0] = __pmd(0); pmd[1] = __pmd(0); diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index e4dd064..2aab1b4 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -120,8 +120,8 @@ static void __dma_free_buffer(struct page *page, size_t size) #endif #define CONSISTENT_OFFSET(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PAGE_SHIFT) -#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PGDIR_SHIFT) -#define NUM_CONSISTENT_PTES (CONSISTENT_DMA_SIZE >> PGDIR_SHIFT) +#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PMD_SHIFT) +#define NUM_CONSISTENT_PTES (CONSISTENT_DMA_SIZE >> PMD_SHIFT) /* * These are the page tables (2MB each) covering uncached, DMA consistent allocations @@ -171,7 +171,7 @@ static int __init consistent_init(void) } consistent_pte[i++] = pte; - base += (1 << PGDIR_SHIFT); + base += (1 << PMD_SHIFT); } while (base < CONSISTENT_END); return ret; diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 79c01f5..5e3adca 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -858,14 +858,14 @@ static inline void prepare_page_table(void) /* * Clear out all the mappings below the kernel image. */ - for (addr = 0; addr < MODULES_VADDR; addr += PGDIR_SIZE) + for (addr = 0; addr < MODULES_VADDR; addr += PMD_SIZE) pmd_clear(pmd_off_k(addr)); #ifdef CONFIG_XIP_KERNEL /* The XIP kernel is mapped in the module area -- skip over it */ - addr = ((unsigned long)_etext + PGDIR_SIZE - 1) & PGDIR_MASK; + addr = ((unsigned long)_etext + PMD_SIZE - 1) & PMD_MASK; #endif - for ( ; addr < PAGE_OFFSET; addr += PGDIR_SIZE) + for ( ; addr < PAGE_OFFSET; addr += PMD_SIZE) pmd_clear(pmd_off_k(addr)); /* @@ -880,7 +880,7 @@ static inline void prepare_page_table(void) * memory bank, up to the end of the vmalloc region. */ for (addr = __phys_to_virt(end); - addr < VMALLOC_END; addr += PGDIR_SIZE) + addr < VMALLOC_END; addr += PMD_SIZE) pmd_clear(pmd_off_k(addr)); } @@ -921,7 +921,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc) */ vectors_page = early_alloc(PAGE_SIZE); - for (addr = VMALLOC_END; addr; addr += PGDIR_SIZE) + for (addr = VMALLOC_END; addr; addr += PMD_SIZE) pmd_clear(pmd_off_k(addr)); /* @@ -1068,12 +1068,12 @@ void setup_mm_for_reboot(char mode) base_pmdval |= PMD_BIT4; for (i = 0; i < FIRST_USER_PGD_NR + USER_PTRS_PER_PGD; i++, pgd++) { - unsigned long pmdval = (i << PGDIR_SHIFT) | base_pmdval; + unsigned long pmdval = (i << PMD_SHIFT) | base_pmdval; pmd_t *pmd; - pmd = pmd_off(pgd, i << PGDIR_SHIFT); + pmd = pmd_off(pgd, i << PMD_SHIFT); pmd[0] = __pmd(pmdval); - pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1))); + pmd[1] = __pmd(pmdval + (1 << (PMD_SHIFT - 1))); flush_pmd_entry(pmd); } -- 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/