From 63551ae0feaaa23807ebea60de1901564bbef32e Mon Sep 17 00:00:00 2001 From: David Gibson Date: Tue, 21 Jun 2005 17:14:44 -0700 Subject: [PATCH] Hugepage consolidation A lot of the code in arch/*/mm/hugetlbpage.c is quite similar. This patch attempts to consolidate a lot of the code across the arch's, putting the combined version in mm/hugetlb.c. There are a couple of uglyish hacks in order to covert all the hugepage archs, but the result is a very large reduction in the total amount of code. It also means things like hugepage lazy allocation could be implemented in one place, instead of six. Tested, at least a little, on ppc64, i386 and x86_64. Notes: - this patch changes the meaning of set_huge_pte() to be more analagous to set_pte() - does SH4 need s special huge_ptep_get_and_clear()?? Acked-by: William Lee Irwin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-sparc64/page.h | 2 ++ include/asm-sparc64/pgtable.h | 1 + 2 files changed, 3 insertions(+) (limited to 'include/asm-sparc64') diff --git a/include/asm-sparc64/page.h b/include/asm-sparc64/page.h index 219ea043a14..b87dbbd64bc 100644 --- a/include/asm-sparc64/page.h +++ b/include/asm-sparc64/page.h @@ -95,6 +95,8 @@ typedef unsigned long pgprot_t; #define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE - 1UL)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) +#define ARCH_HAS_SETCLEAR_HUGE_PTE +#define ARCH_HAS_HUGETLB_PREFAULT_HOOK #endif #define TASK_UNMAPPED_BASE (test_thread_flag(TIF_32BIT) ? \ diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index ae2cd5b09a7..1ae00c5087f 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -286,6 +286,7 @@ static inline pte_t pte_modify(pte_t orig_pte, pgprot_t new_prot) #define pte_mkyoung(pte) (__pte(pte_val(pte) | _PAGE_ACCESSED | _PAGE_R)) #define pte_mkwrite(pte) (__pte(pte_val(pte) | _PAGE_WRITE)) #define pte_mkdirty(pte) (__pte(pte_val(pte) | _PAGE_MODIFIED | _PAGE_W)) +#define pte_mkhuge(pte) (__pte(pte_val(pte) | _PAGE_SZHUGE)) /* to find an entry in a page-table-directory. */ #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) -- cgit v1.2.3