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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-03-03 13:30:03 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-03-03 13:30:03 +1100
commit652e8f8d579d61745094e36b4ff085026a332e73 (patch)
tree44145576f9cdf0b777dee0d0961f5499ea88bec8 /arch/powerpc/include/asm/highmem.h
parent501cb16d3cfdcca99ac26fe122079f2a43b046b8 (diff)
parent6c7120902305b3a21460cd2f0f917a39307df566 (diff)
Merge commit 'jwb/next' into next
Diffstat (limited to 'arch/powerpc/include/asm/highmem.h')
-rw-r--r--arch/powerpc/include/asm/highmem.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/highmem.h b/arch/powerpc/include/asm/highmem.h
index a286e47100b..545028f8648 100644
--- a/arch/powerpc/include/asm/highmem.h
+++ b/arch/powerpc/include/asm/highmem.h
@@ -39,15 +39,15 @@ extern pte_t *pkmap_page_table;
* chunk of RAM.
*/
/*
- * We use one full pte table with 4K pages. And with 16K/64K pages pte
- * table covers enough memory (32MB and 512MB resp.) that both FIXMAP
- * and PKMAP can be placed in single pte table. We use 1024 pages for
- * PKMAP in case of 16K/64K pages.
+ * We use one full pte table with 4K pages. And with 16K/64K/256K pages pte
+ * table covers enough memory (32MB/512MB/2GB resp.), so that both FIXMAP
+ * and PKMAP can be placed in a single pte table. We use 512 pages for PKMAP
+ * in case of 16K/64K/256K page sizes.
*/
#ifdef CONFIG_PPC_4K_PAGES
#define PKMAP_ORDER PTE_SHIFT
#else
-#define PKMAP_ORDER 10
+#define PKMAP_ORDER 9
#endif
#define LAST_PKMAP (1 << PKMAP_ORDER)
#ifndef CONFIG_PPC_4K_PAGES