diff options
Diffstat (limited to 'include/asm-x86/highmem.h')
| -rw-r--r-- | include/asm-x86/highmem.h | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/include/asm-x86/highmem.h b/include/asm-x86/highmem.h deleted file mode 100644 index 4514b16cc723..000000000000 --- a/include/asm-x86/highmem.h +++ /dev/null | |||
| @@ -1,82 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * highmem.h: virtual kernel memory mappings for high memory | ||
| 3 | * | ||
| 4 | * Used in CONFIG_HIGHMEM systems for memory pages which | ||
| 5 | * are not addressable by direct kernel virtual addresses. | ||
| 6 | * | ||
| 7 | * Copyright (C) 1999 Gerhard Wichert, Siemens AG | ||
| 8 | * Gerhard.Wichert@pdb.siemens.de | ||
| 9 | * | ||
| 10 | * | ||
| 11 | * Redesigned the x86 32-bit VM architecture to deal with | ||
| 12 | * up to 16 Terabyte physical memory. With current x86 CPUs | ||
| 13 | * we now support up to 64 Gigabytes physical RAM. | ||
| 14 | * | ||
| 15 | * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com> | ||
| 16 | */ | ||
| 17 | |||
| 18 | #ifndef _ASM_HIGHMEM_H | ||
| 19 | #define _ASM_HIGHMEM_H | ||
| 20 | |||
| 21 | #ifdef __KERNEL__ | ||
| 22 | |||
| 23 | #include <linux/interrupt.h> | ||
| 24 | #include <linux/threads.h> | ||
| 25 | #include <asm/kmap_types.h> | ||
| 26 | #include <asm/tlbflush.h> | ||
| 27 | #include <asm/paravirt.h> | ||
| 28 | |||
| 29 | /* declarations for highmem.c */ | ||
| 30 | extern unsigned long highstart_pfn, highend_pfn; | ||
| 31 | |||
| 32 | extern pte_t *kmap_pte; | ||
| 33 | extern pgprot_t kmap_prot; | ||
| 34 | extern pte_t *pkmap_page_table; | ||
| 35 | |||
| 36 | /* | ||
| 37 | * Right now we initialize only a single pte table. It can be extended | ||
| 38 | * easily, subsequent pte tables have to be allocated in one physical | ||
| 39 | * chunk of RAM. | ||
| 40 | */ | ||
| 41 | /* | ||
| 42 | * Ordering is: | ||
| 43 | * | ||
| 44 | * FIXADDR_TOP | ||
| 45 | * fixed_addresses | ||
| 46 | * FIXADDR_START | ||
| 47 | * temp fixed addresses | ||
| 48 | * FIXADDR_BOOT_START | ||
| 49 | * Persistent kmap area | ||
| 50 | * PKMAP_BASE | ||
| 51 | * VMALLOC_END | ||
| 52 | * Vmalloc area | ||
| 53 | * VMALLOC_START | ||
| 54 | * high_memory | ||
| 55 | */ | ||
| 56 | #define LAST_PKMAP_MASK (LAST_PKMAP-1) | ||
| 57 | #define PKMAP_NR(virt) ((virt-PKMAP_BASE) >> PAGE_SHIFT) | ||
| 58 | #define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT)) | ||
| 59 | |||
| 60 | extern void *kmap_high(struct page *page); | ||
| 61 | extern void kunmap_high(struct page *page); | ||
| 62 | |||
| 63 | void *kmap(struct page *page); | ||
| 64 | void kunmap(struct page *page); | ||
| 65 | void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot); | ||
| 66 | void *kmap_atomic(struct page *page, enum km_type type); | ||
| 67 | void kunmap_atomic(void *kvaddr, enum km_type type); | ||
| 68 | void *kmap_atomic_pfn(unsigned long pfn, enum km_type type); | ||
| 69 | struct page *kmap_atomic_to_page(void *ptr); | ||
| 70 | |||
| 71 | #ifndef CONFIG_PARAVIRT | ||
| 72 | #define kmap_atomic_pte(page, type) kmap_atomic(page, type) | ||
| 73 | #endif | ||
| 74 | |||
| 75 | #define flush_cache_kmaps() do { } while (0) | ||
| 76 | |||
| 77 | extern void add_highpages_with_active_regions(int nid, unsigned long start_pfn, | ||
| 78 | unsigned long end_pfn); | ||
| 79 | |||
| 80 | #endif /* __KERNEL__ */ | ||
| 81 | |||
| 82 | #endif /* _ASM_HIGHMEM_H */ | ||