8b1c9befbf
page.h includes ifndef __ASSEMBLY__ guards, but PAGE_SIZE is defined using "1UL", which the assembler does not support. Use the _AC macro from const.h to make it available to assembly (and linker scripts). Signed-off-by: Tim Abbott <tabbott@ksplice.com> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
#ifndef _ASM_M32R_PAGE_H
|
|
#define _ASM_M32R_PAGE_H
|
|
|
|
#include <linux/const.h>
|
|
|
|
/* PAGE_SHIFT determines the page size */
|
|
#define PAGE_SHIFT 12
|
|
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
|
|
#define PAGE_MASK (~(PAGE_SIZE-1))
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
extern void clear_page(void *to);
|
|
extern void copy_page(void *to, void *from);
|
|
|
|
#define clear_user_page(page, vaddr, pg) clear_page(page)
|
|
#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
|
|
|
|
#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
|
|
alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
|
|
#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
|
|
|
|
/*
|
|
* These are used to make use of C type-checking..
|
|
*/
|
|
typedef struct { unsigned long pte; } pte_t;
|
|
typedef struct { unsigned long pmd; } pmd_t;
|
|
typedef struct { unsigned long pgd; } pgd_t;
|
|
#define pte_val(x) ((x).pte)
|
|
#define PTE_MASK PAGE_MASK
|
|
|
|
typedef struct { unsigned long pgprot; } pgprot_t;
|
|
typedef struct page *pgtable_t;
|
|
|
|
#define pmd_val(x) ((x).pmd)
|
|
#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) } )
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
/*
|
|
* This handles the memory map.. We could make this a config
|
|
* option, but too many people screw it up, and too few need
|
|
* it.
|
|
*
|
|
* A __PAGE_OFFSET of 0xC0000000 means that the kernel has
|
|
* a virtual address space of one gigabyte, which limits the
|
|
* amount of physical memory you can use to about 950MB.
|
|
*
|
|
* If you want more physical memory than this then see the CONFIG_HIGHMEM4G
|
|
* and CONFIG_HIGHMEM64G options in the kernel configuration.
|
|
*/
|
|
|
|
#define __MEMORY_START CONFIG_MEMORY_START
|
|
#define __MEMORY_SIZE CONFIG_MEMORY_SIZE
|
|
|
|
#ifdef CONFIG_MMU
|
|
#define __PAGE_OFFSET (0x80000000)
|
|
#else
|
|
#define __PAGE_OFFSET (0x00000000)
|
|
#endif
|
|
|
|
#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
|
|
#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET)
|
|
#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET))
|
|
|
|
#ifndef CONFIG_DISCONTIGMEM
|
|
#define PFN_BASE (CONFIG_MEMORY_START >> PAGE_SHIFT)
|
|
#define ARCH_PFN_OFFSET PFN_BASE
|
|
#define pfn_valid(pfn) (((pfn) - PFN_BASE) < max_mapnr)
|
|
#endif /* !CONFIG_DISCONTIGMEM */
|
|
|
|
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
|
|
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
|
|
|
|
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
|
|
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC )
|
|
|
|
#define devmem_is_allowed(x) 1
|
|
|
|
#include <asm-generic/memory_model.h>
|
|
#include <asm-generic/getorder.h>
|
|
|
|
#endif /* _ASM_M32R_PAGE_H */
|