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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 10:59:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 11:02:56 -0700
commitec8deffa33757286ba59e71d3d98173c37638b37 (patch)
tree2a176fd94d4665fe3c03f6e9f09dda8060fdb4a7 /include
parent7cc4e87f912bbefa440a51856b8d076e5d1f554a (diff)
parent3dd392a407d15250a501fa109cc1f93fee95ef85 (diff)
Merge phase #2 (PAT updates) of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-v28-for-linus-phase2-B' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (27 commits) x86, cpa: make the kernel physical mapping initialization a two pass sequence, fix x86, pat: cleanups x86: fix pagetable init 64-bit breakage x86: track memtype for RAM in page struct x86, cpa: srlz cpa(), global flush tlb after splitting big page and before doing cpa x86, cpa: remove cpa pool code x86, cpa: no need to check alias for __set_pages_p/__set_pages_np x86, cpa: dont use large pages for kernel identity mapping with DEBUG_PAGEALLOC x86, cpa: make the kernel physical mapping initialization a two pass sequence x86, cpa: remove USER permission from the very early identity mapping attribute x86, cpa: rename PTE attribute macros for kernel direct mapping in early boot x86: make sure the CPA test code's use of _PAGE_UNUSED1 is obvious linux-next: fix x86 tree build failure x86: have set_memory_array_{uc,wb} coalesce memtypes, fix agp: enable optimized agp_alloc_pages methods x86: have set_memory_array_{uc,wb} coalesce memtypes. x86: {reverve,free}_memtype() take a physical address x86: fix pageattr-test agp: add agp_generic_destroy_pages() agp: generic_alloc_pages() ...
Diffstat (limited to 'include')
-rw-r--r--include/asm-x86/cacheflush.h7
-rw-r--r--include/asm-x86/page.h1
-rw-r--r--include/asm-x86/pgtable.h13
3 files changed, 19 insertions, 2 deletions
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index 59859cb28a3..68840ef1b35 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -24,6 +24,8 @@
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy((dst), (src), (len))
+#define PG_non_WB PG_arch_1
+PAGEFLAG(NonWB, non_WB)
/*
* The set_memory_* API can be used to change various attributes of a virtual
@@ -66,6 +68,9 @@ int set_memory_rw(unsigned long addr, int numpages);
int set_memory_np(unsigned long addr, int numpages);
int set_memory_4k(unsigned long addr, int numpages);
+int set_memory_array_uc(unsigned long *addr, int addrinarray);
+int set_memory_array_wb(unsigned long *addr, int addrinarray);
+
/*
* For legacy compatibility with the old APIs, a few functions
* are provided that work on a "struct page".
@@ -96,8 +101,6 @@ int set_pages_rw(struct page *page, int numpages);
void clflush_cache_range(void *addr, unsigned int size);
-void cpa_init(void);
-
#ifdef CONFIG_DEBUG_RODATA
void mark_rodata_ro(void);
extern const int rodata_test_data;
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index 79544e6ffb8..c9157477675 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -57,6 +57,7 @@ typedef struct { pgdval_t pgd; } pgd_t;
typedef struct { pgprotval_t pgprot; } pgprot_t;
extern int page_is_ram(unsigned long pagenr);
+extern int pagerange_is_ram(unsigned long start, unsigned long end);
extern int devmem_is_allowed(unsigned long pagenr);
extern void map_devmem(unsigned long pfn, unsigned long size,
pgprot_t vma_prot);
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 888add7b088..ed932453ef2 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -19,6 +19,7 @@
#define _PAGE_BIT_UNUSED3 11
#define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1
+#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1
#define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
#define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT)
@@ -36,6 +37,7 @@
#define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
#define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
#define _PAGE_SPECIAL (_AT(pteval_t, 1) << _PAGE_BIT_SPECIAL)
+#define _PAGE_CPA_TEST (_AT(pteval_t, 1) << _PAGE_BIT_CPA_TEST)
#define __HAVE_ARCH_PTE_SPECIAL
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
@@ -130,6 +132,17 @@
#define __S110 PAGE_SHARED_EXEC
#define __S111 PAGE_SHARED_EXEC
+/*
+ * early identity mapping pte attrib macros.
+ */
+#ifdef CONFIG_X86_64
+#define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
+#else
+#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
+#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
+#define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
+#endif
+
#ifndef __ASSEMBLY__
/*