Merge git://git.infradead.org/iommu-2.6

[linux-2.6-omap-h63xx.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..684a73f4324f4ad203c71ef4eb09b5045ab60516 100644 (file)
--- a/arch/powerpc/include/asm/highmem.h
+++ b/arch/powerpc/include/asm/highmem.h
@@ -24,6 +24,7 @@
 
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/highmem.h>
 #include <asm/kmap_types.h>
 #include <asm/tlbflush.h>
 #include <asm/page.h>
@@ -39,15 +40,15 @@ 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
@@ -94,6 +95,7 @@ static inline void *kmap_atomic_prot(struct page *page, enum km_type type, pgpro
        if (!PageHighMem(page))
                return page_address(page);
 
+       debug_kmap_atomic(type);
        idx = type + KM_TYPE_NR*smp_processor_id();
        vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
 #ifdef CONFIG_DEBUG_HIGHMEM