#ifdef __KERNEL__
-#include <linux/config.h>
#include <linux/interrupt.h>
#include <linux/threads.h>
#include <asm/kmap_types.h>
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))
void *kmap(struct page *page);
void kunmap(struct page *page);
void *kmap_atomic(struct page *page, enum km_type type);
+#ifdef CONFIG_XEN
+void *kmap_atomic_pte(struct page *page, enum km_type type);
+#endif
void kunmap_atomic(void *kvaddr, 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)