diff options
Diffstat (limited to 'include/asm-mips/highmem.h')
| -rw-r--r-- | include/asm-mips/highmem.h | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/include/asm-mips/highmem.h b/include/asm-mips/highmem.h deleted file mode 100644 index 4374ab2..0000000 --- a/include/asm-mips/highmem.h +++ /dev/null @@ -1,67 +0,0 @@ -/* - * highmem.h: virtual kernel memory mappings for high memory - * - * Used in CONFIG_HIGHMEM systems for memory pages which - * are not addressable by direct kernel virtual addresses. - * - * Copyright (C) 1999 Gerhard Wichert, Siemens AG - * Gerhard.Wichert@pdb.siemens.de - * - * - * Redesigned the x86 32-bit VM architecture to deal with - * up to 16 Terabyte physical memory. With current x86 CPUs - * we now support up to 64 Gigabytes physical RAM. - * - * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com> - */ -#ifndef _ASM_HIGHMEM_H -#define _ASM_HIGHMEM_H - -#ifdef __KERNEL__ - -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/uaccess.h> -#include <asm/kmap_types.h> - -/* undef for production */ -#define HIGHMEM_DEBUG 1 - -/* declarations for highmem.c */ -extern unsigned long highstart_pfn, highend_pfn; - -extern pte_t *kmap_pte; -extern pgprot_t kmap_prot; -extern pte_t *pkmap_page_table; - -/* - * 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. - */ -#define LAST_PKMAP 1024 -#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)) - -extern void * kmap_high(struct page *page); -extern void kunmap_high(struct page *page); - -extern void *__kmap(struct page *page); -extern void __kunmap(struct page *page); -extern void *__kmap_atomic(struct page *page, enum km_type type); -extern void __kunmap_atomic(void *kvaddr, enum km_type type); -extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type); -extern struct page *__kmap_atomic_to_page(void *ptr); - -#define kmap __kmap -#define kunmap __kunmap -#define kmap_atomic __kmap_atomic -#define kunmap_atomic __kunmap_atomic -#define kmap_atomic_to_page __kmap_atomic_to_page - -#define flush_cache_kmaps() flush_cache_all() - -#endif /* __KERNEL__ */ - -#endif /* _ASM_HIGHMEM_H */ |