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Date: Sat, 19 Jan 2008 07:48:31 +0100 (CET) From: Andi Kleen <ak@...e.de> To: mingo@...e.hu, tglx@...utronix.de, linux-kernel@...r.kernel.org Subject: [PATCH] [3/8] GBPAGES: Split LARGE_PAGE_SIZE/MASK into PUD_PAGE_SIZE/PMD_PAGE_SIZE Split the existing LARGE_PAGE_SIZE/MASK macro into two new macros PUD_PAGE_SIZE/MASK and PMD_PAGE_SIZE/MASK. Fix up all callers to use the new names. Signed-off-by: Andi Kleen <ak@...e.de> --- arch/x86/boot/compressed/head_64.S | 8 ++++---- arch/x86/kernel/head_64.S | 4 ++-- arch/x86/kernel/pci-gart_64.c | 2 +- arch/x86/mm/init_64.c | 6 +++--- arch/x86/mm/pageattr_64.c | 4 ++-- include/asm-x86/page.h | 4 ++-- include/asm-x86/page_32.h | 4 ++++ include/asm-x86/page_64.h | 3 +++ 8 files changed, 21 insertions(+), 14 deletions(-) Index: linux/include/asm-x86/page_64.h =================================================================== --- linux.orig/include/asm-x86/page_64.h +++ linux/include/asm-x86/page_64.h @@ -23,6 +23,9 @@ #define MCE_STACK 5 #define N_EXCEPTION_STACKS 5 /* hw limit: 7 */ +#define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT) +#define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1)) + #define __PAGE_OFFSET _AC(0xffff810000000000, UL) #define __PHYSICAL_START CONFIG_PHYSICAL_START Index: linux/arch/x86/boot/compressed/head_64.S =================================================================== --- linux.orig/arch/x86/boot/compressed/head_64.S +++ linux/arch/x86/boot/compressed/head_64.S @@ -80,8 +80,8 @@ startup_32: #ifdef CONFIG_RELOCATABLE movl %ebp, %ebx - addl $(LARGE_PAGE_SIZE -1), %ebx - andl $LARGE_PAGE_MASK, %ebx + addl $(PMD_PAGE_SIZE -1), %ebx + andl $PMD_PAGE_MASK, %ebx #else movl $CONFIG_PHYSICAL_START, %ebx #endif @@ -220,8 +220,8 @@ ENTRY(startup_64) /* Start with the delta to where the kernel will run at. */ #ifdef CONFIG_RELOCATABLE leaq startup_32(%rip) /* - $startup_32 */, %rbp - addq $(LARGE_PAGE_SIZE - 1), %rbp - andq $LARGE_PAGE_MASK, %rbp + addq $(PMD_PAGE_SIZE - 1), %rbp + andq $PMD_PAGE_MASK, %rbp movq %rbp, %rbx #else movq $CONFIG_PHYSICAL_START, %rbp Index: linux/arch/x86/kernel/pci-gart_64.c =================================================================== --- linux.orig/arch/x86/kernel/pci-gart_64.c +++ linux/arch/x86/kernel/pci-gart_64.c @@ -501,7 +501,7 @@ static __init unsigned long check_iommu_ } a = aper + iommu_size; - iommu_size -= round_up(a, LARGE_PAGE_SIZE) - a; + iommu_size -= round_up(a, PMD_PAGE_SIZE) - a; if (iommu_size < 64*1024*1024) { printk(KERN_WARNING Index: linux/arch/x86/kernel/head_64.S =================================================================== --- linux.orig/arch/x86/kernel/head_64.S +++ linux/arch/x86/kernel/head_64.S @@ -63,7 +63,7 @@ startup_64: /* Is the address not 2M aligned? */ movq %rbp, %rax - andl $~LARGE_PAGE_MASK, %eax + andl $~PMD_PAGE_MASK, %eax testl %eax, %eax jnz bad_address @@ -88,7 +88,7 @@ startup_64: /* Add an Identity mapping if I am above 1G */ leaq _text(%rip), %rdi - andq $LARGE_PAGE_MASK, %rdi + andq $PMD_PAGE_MASK, %rdi movq %rdi, %rax shrq $PUD_SHIFT, %rax Index: linux/arch/x86/mm/init_64.c =================================================================== --- linux.orig/arch/x86/mm/init_64.c +++ linux/arch/x86/mm/init_64.c @@ -420,10 +420,10 @@ __clear_kernel_mapping(unsigned long add { unsigned long end = address + size; - BUG_ON(address & ~LARGE_PAGE_MASK); - BUG_ON(size & ~LARGE_PAGE_MASK); + BUG_ON(address & ~PMD_PAGE_MASK); + BUG_ON(size & ~PMD_PAGE_MASK); - for (; address < end; address += LARGE_PAGE_SIZE) { + for (; address < end; address += PMD_PAGE_SIZE) { pgd_t *pgd = pgd_offset_k(address); pud_t *pud; pmd_t *pmd; Index: linux/arch/x86/mm/pageattr_64.c =================================================================== --- linux.orig/arch/x86/mm/pageattr_64.c +++ linux/arch/x86/mm/pageattr_64.c @@ -70,7 +70,7 @@ static struct page *split_large_page(uns page_private(base) = 0; address = __pa(address); - addr = address & LARGE_PAGE_MASK; + addr = address & PMD_PAGE_MASK; pbase = (pte_t *)page_address(base); for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) { pbase[i] = pfn_pte(addr >> PAGE_SHIFT, @@ -150,7 +150,7 @@ static void revert_page(unsigned long ad BUG_ON(pud_none(*pud)); pmd = pmd_offset(pud, address); BUG_ON(pmd_val(*pmd) & _PAGE_PSE); - pfn = (__pa(address) & LARGE_PAGE_MASK) >> PAGE_SHIFT; + pfn = (__pa(address) & PMD_PAGE_MASK) >> PAGE_SHIFT; large_pte = pfn_pte(pfn, ref_prot); large_pte = pte_mkhuge(large_pte); set_pte((pte_t *)pmd, large_pte); Index: linux/include/asm-x86/page_32.h =================================================================== --- linux.orig/include/asm-x86/page_32.h +++ linux/include/asm-x86/page_32.h @@ -13,6 +13,10 @@ */ #define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) +/* Eventually 32bit should be moved over to the new names too */ +#define LARGE_PAGE_SIZE PMD_PAGE_SIZE +#define LARGE_PAGE_MASK PMD_PAGE_MASK + #ifdef CONFIG_X86_PAE #define __PHYSICAL_MASK_SHIFT 36 #define __VIRTUAL_MASK_SHIFT 32 Index: linux/include/asm-x86/page.h =================================================================== --- linux.orig/include/asm-x86/page.h +++ linux/include/asm-x86/page.h @@ -13,8 +13,8 @@ #define PHYSICAL_PAGE_MASK (PAGE_MASK & __PHYSICAL_MASK) #define PTE_MASK (_AT(long, PHYSICAL_PAGE_MASK)) -#define LARGE_PAGE_SIZE (_AC(1,UL) << PMD_SHIFT) -#define LARGE_PAGE_MASK (~(LARGE_PAGE_SIZE-1)) +#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT) +#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1)) #define HPAGE_SHIFT PMD_SHIFT #define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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