From 7dc9dab098c2fae0684c77f9db54687540cecd46 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 31 Jan 2011 13:50:39 +0000 Subject: [PATCH] ARM: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_* 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 so that LPAE builds can reuse the same code. Signed-off-by: Catalin Marinas --- arch/arm/kernel/module.c | 2 +- arch/arm/mm/dma-mapping.c | 6 +++--- arch/arm/mm/mmu.c | 10 +++++----- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c index 05b377616fd5..91befcfda68d 100644 --- a/arch/arm/kernel/module.c +++ b/arch/arm/kernel/module.c @@ -33,7 +33,7 @@ * 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/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 0a0a1e7c20d2..b6a867cb7dd2 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -123,8 +123,8 @@ 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 @@ -183,7 +183,7 @@ 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 594d677b92c8..dc2685805fb3 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -863,14 +863,14 @@ 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)); /* @@ -885,7 +885,7 @@ 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)); } @@ -926,7 +926,7 @@ 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)); /* -- 2.39.5