diff options
| author | Jack Steiner <steiner@sgi.com> | 2008-07-01 14:45:32 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-09 07:43:23 +0200 |
| commit | 3a9e189d69479736a0d0901c87ad08c9e328b389 (patch) | |
| tree | e08bc871290cba63e8c8038a77be6c0732e17a1f /include/asm-x86 | |
| parent | fc9036ea1a4b14229788e6df3936b451a6abac98 (diff) | |
x86: map UV chipset space - pagetable
Add boot-time function for creating additional 2MB page table entries for
mapping chipset specific cached/uncached ranges.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86')
| -rw-r--r-- | include/asm-x86/page_64.h | 4 | ||||
| -rw-r--r-- | include/asm-x86/pgtable.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h index 010d12db80d..c6916c83e6b 100644 --- a/include/asm-x86/page_64.h +++ b/include/asm-x86/page_64.h @@ -91,6 +91,10 @@ extern unsigned long init_memory_mapping(unsigned long start, unsigned long end); extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn); + +extern void init_extra_mapping_uc(unsigned long phys, unsigned long size); +extern void init_extra_mapping_wb(unsigned long phys, unsigned long size); + #endif /* !__ASSEMBLY__ */ #ifdef CONFIG_FLATMEM diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h index 64de07e2532..49cbd76b954 100644 --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -91,6 +91,7 @@ #define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER) #define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT) #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE) +#define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE) #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE) #define PAGE_KERNEL __pgprot(__PAGE_KERNEL) @@ -102,6 +103,7 @@ #define PAGE_KERNEL_UC_MINUS __pgprot(__PAGE_KERNEL_UC_MINUS) #define PAGE_KERNEL_EXEC_NOCACHE __pgprot(__PAGE_KERNEL_EXEC_NOCACHE) #define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE) +#define PAGE_KERNEL_LARGE_NOCACHE __pgprot(__PAGE_KERNEL_LARGE_NOCACHE) #define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC) #define PAGE_KERNEL_VSYSCALL __pgprot(__PAGE_KERNEL_VSYSCALL) #define PAGE_KERNEL_VSYSCALL_NOCACHE __pgprot(__PAGE_KERNEL_VSYSCALL_NOCACHE) |