Merge commit 'jwb/next' into next

[deliverable/linux.git] / arch / powerpc / include / asm / highmem.h

diff --git a/arch/powerpc/include/asm/highmem.h b/arch/powerpc/include/asm/highmem.h
index a286e47100b56aa77c82e6159d3abcb630b3fa34..545028f8648801ebf321fbcbdfdd987718434d40 100644 (file)
--- 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