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>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index 010d12db80dc..c6916c83e6b1 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