Revert to Fedora kernel-2.6.17-1.2187_FC5 patched with vs2.0.2.1; there are too many...

[linux-2.6.git] / include / asm-i386 / highmem.h

diff --git a/include/asm-i386/highmem.h b/include/asm-i386/highmem.h
index a2525ba..0fd3313 100644 (file)
--- a/include/asm-i386/highmem.h
+++ b/include/asm-i386/highmem.h
@@ -33,23 +33,32 @@ extern pte_t *kmap_pte;
 extern pgprot_t kmap_prot;
 extern pte_t *pkmap_page_table;
 
-extern void kmap_init(void);
-
 /*
  * Right now we initialize only a single pte table. It can be extended
  * easily, subsequent pte tables have to be allocated in one physical
  * chunk of RAM.
  */
-#if NR_CPUS <= 32
-#define PKMAP_BASE (0xff800000UL)
-#else
-#define PKMAP_BASE (0xff600000UL)
-#endif
 #ifdef CONFIG_X86_PAE
 #define LAST_PKMAP 512
 #else
 #define LAST_PKMAP 1024
 #endif
+/*
+ * Ordering is:
+ *
+ * FIXADDR_TOP
+ *                     fixed_addresses
+ * FIXADDR_START
+ *                     temp fixed addresses
+ * FIXADDR_BOOT_START
+ *                     Persistent kmap area
+ * PKMAP_BASE
+ * VMALLOC_END
+ *                     Vmalloc area
+ * VMALLOC_START
+ * high_memory
+ */
+#define PKMAP_BASE ( (FIXADDR_BOOT_START - PAGE_SIZE*(LAST_PKMAP + 1)) & PMD_MASK )
 #define LAST_PKMAP_MASK (LAST_PKMAP-1)
 #define PKMAP_NR(virt)  ((virt-PKMAP_BASE) >> PAGE_SHIFT)
 #define PKMAP_ADDR(nr)  (PKMAP_BASE + ((nr) << PAGE_SHIFT))
@@ -61,7 +70,7 @@ void *kmap(struct page *page);
 void kunmap(struct page *page);
 void *kmap_atomic(struct page *page, enum km_type type);
 void kunmap_atomic(void *kvaddr, enum km_type type);
-char *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
+void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
 struct page *kmap_atomic_to_page(void *ptr);
 
 #define flush_cache_kmaps()    do { } while (0)