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author | Ingo Molnar <mingo@elte.hu> | 2009-04-17 16:18:22 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-04-17 16:18:28 +0200 |
commit | 5043124e660fcc3ddefe4239ddfa017bf13f5081 (patch) | |
tree | 06875cdb942afe460dbac33acf3e8223c805a35d /arch/frv/include/asm/page.h | |
parent | 77857dc07247ed5fa700a197c96ef842d8dbebdf (diff) | |
parent | 9f76208c33984ab777eace5d07a4e36e88703e02 (diff) |
Merge branch 'linus' into x86/apic
Merge reason: new intr-remap patches depend on the s2ram iommu fixes from upstream
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/frv/include/asm/page.h')
-rw-r--r-- | arch/frv/include/asm/page.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/arch/frv/include/asm/page.h b/arch/frv/include/asm/page.h new file mode 100644 index 00000000000..bd9c220094c --- /dev/null +++ b/arch/frv/include/asm/page.h @@ -0,0 +1,78 @@ +#ifndef _ASM_PAGE_H +#define _ASM_PAGE_H + +#include <asm/virtconvert.h> +#include <asm/mem-layout.h> +#include <asm/sections.h> +#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(pgaddr) memset((pgaddr), 0, PAGE_SIZE) +#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) + +#define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE) +#define copy_user_page(vto, vfrom, vaddr, topg) memcpy((vto), (vfrom), PAGE_SIZE) + +/* + * These are used to make use of C type-checking.. + */ +typedef struct { unsigned long pte; } pte_t; +typedef struct { unsigned long ste[64];} pmd_t; +typedef struct { pmd_t pue[1]; } pud_t; +typedef struct { pud_t pge[1]; } 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).ste[0]) +#define pud_val(x) ((x).pue[0]) +#define pgd_val(x) ((x).pge[0]) +#define pgprot_val(x) ((x).pgprot) + +#define __pte(x) ((pte_t) { (x) } ) +#define __pmd(x) ((pmd_t) { (x) } ) +#define __pud(x) ((pud_t) { (x) } ) +#define __pgd(x) ((pgd_t) { (x) } ) +#define __pgprot(x) ((pgprot_t) { (x) } ) +#define PTE_MASK PAGE_MASK + +#define devmem_is_allowed(pfn) 1 + +#define __pa(vaddr) virt_to_phys((void *) (unsigned long) (vaddr)) +#define __va(paddr) phys_to_virt((unsigned long) (paddr)) + +#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) + +extern unsigned long max_low_pfn; +extern unsigned long min_low_pfn; +extern unsigned long max_pfn; + +#ifdef CONFIG_MMU +#define pfn_valid(pfn) ((pfn) < max_mapnr) +#else +#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT) +#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn) + +#endif + +#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) +#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) + + +#ifdef CONFIG_MMU +#define VM_DATA_DEFAULT_FLAGS \ + (VM_READ | VM_WRITE | \ + ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) +#endif + +#endif /* __ASSEMBLY__ */ + +#include <asm-generic/memory_model.h> +#include <asm-generic/page.h> + +#endif /* _ASM_PAGE_H */ |