diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-28 12:34:01 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-28 12:34:01 -0700 |
commit | 604a2785a8482cad4d63202465133c720db5eda7 (patch) | |
tree | e2f510a8a54d7d4443cb52f3a0be46f527ebb779 /arch/blackfin/include/asm/page.h | |
parent | 66833d5f3934a19d0988b7d0de58149bfd7a5884 (diff) | |
parent | d310fb4bb73629840430cb13cb282915e49fef4b (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
Blackfin arch: Fix PM building on BF52x: No ROTWE on BF52x, add USBWE
Blackfin arch: sram: use 'unsigned long' for irqflags
Blackfin arch: let PCI depend on BROKEN
Blackfin arch: move include/asm-blackfin header files to arch/blackfin
Blackfin arch: fix bug - MPU crashes under stress
Blackfin arch: Fix bug - when to rmmod the L1_module, it stucks and then reboot the board.
Blackfin arch: dont actually need to muck with EMAC_SYSTAT for BF52x for demuxing
Blackfin arch: Add MTD Partitions for MTD_DATAFLASH, increase max SPI SCLK
Diffstat (limited to 'arch/blackfin/include/asm/page.h')
-rw-r--r-- | arch/blackfin/include/asm/page.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/page.h b/arch/blackfin/include/asm/page.h new file mode 100644 index 00000000000..344f6a8c1f2 --- /dev/null +++ b/arch/blackfin/include/asm/page.h @@ -0,0 +1,88 @@ +#ifndef _BLACKFIN_PAGE_H +#define _BLACKFIN_PAGE_H + +/* PAGE_SHIFT determines the page size */ + +#define PAGE_SHIFT 12 +#ifdef __ASSEMBLY__ +#define PAGE_SIZE (1 << PAGE_SHIFT) +#else +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#endif +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#include <asm/setup.h> + +#ifndef __ASSEMBLY__ + +#define get_user_page(vaddr) __get_free_page(GFP_KERNEL) +#define free_user_page(page, addr) free_page(addr) + +#define clear_page(page) memset((page), 0, PAGE_SIZE) +#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) + +#define clear_user_page(page, vaddr,pg) clear_page(page) +#define copy_user_page(to, from, vaddr,pg) copy_page(to, from) + +/* + * These are used to make use of C type-checking.. + */ +typedef struct { + unsigned long pte; +} pte_t; +typedef struct { + unsigned long pmd[16]; +} pmd_t; +typedef struct { + unsigned long pgd; +} pgd_t; +typedef struct { + unsigned long pgprot; +} pgprot_t; +typedef struct page *pgtable_t; + +#define pte_val(x) ((x).pte) +#define pmd_val(x) ((&x)->pmd[0]) +#define pgd_val(x) ((x).pgd) +#define pgprot_val(x) ((x).pgprot) + +#define __pte(x) ((pte_t) { (x) } ) +#define __pmd(x) ((pmd_t) { (x) } ) +#define __pgd(x) ((pgd_t) { (x) } ) +#define __pgprot(x) ((pgprot_t) { (x) } ) + +extern unsigned long memory_start; +extern unsigned long memory_end; + +#endif /* !__ASSEMBLY__ */ + +#include <asm/page_offset.h> +#include <asm/io.h> + +#define PAGE_OFFSET (PAGE_OFFSET_RAW) + +#ifndef __ASSEMBLY__ + +#define __pa(vaddr) virt_to_phys((void *)(vaddr)) +#define __va(paddr) phys_to_virt((unsigned long)(paddr)) + +#define MAP_NR(addr) (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT) + +#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) +#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) +#define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)) +#define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) +#define VALID_PAGE(page) ((page - mem_map) < max_mapnr) + +#define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn)) +#define page_to_pfn(page) virt_to_pfn(page_to_virt(page)) +#define pfn_valid(pfn) ((pfn) < max_mapnr) + +#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ + ((void *)(kaddr) < (void *)memory_end)) + +#include <asm-generic/page.h> + +#endif /* __ASSEMBLY__ */ + +#endif /* _BLACKFIN_PAGE_H */ |