page_mm.h File Reference

#include <linux/compiler.h>
#include <asm/module.h>

Go to the source code of this file.

Macros
#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(addr, vaddr, page)
#define	copy_user_page(to, from, vaddr, page)
#define	WANT_PAGE_VIRTUAL
#define	__pa(vaddr)   ___pa((void *)(long)(vaddr))
#define	virt_to_pfn(kaddr)   (__pa(kaddr) >> PAGE_SHIFT)
#define	pfn_to_virt(pfn)   __va((pfn) << PAGE_SHIFT)
#define	__virt_to_node(addr)   (pg_data_table[(unsigned long)(addr) >> __virt_to_node_shift()])
#define	virt_to_page(addr)
#define	page_to_virt(page)
#define	pfn_to_page(pfn)
#define	page_to_pfn(_page)
#define	virt_addr_valid(kaddr)   ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
#define	pfn_valid(pfn)   virt_addr_valid(pfn_to_virt(pfn))
#define	VM_DATA_DEFAULT_FLAGS

Variables
unsigned long	m68k_memoffset
int	m68k_virt_to_node_shift
struct pglist_data *	pg_data_table []

Macro Definition Documentation

#define __pa

(

vaddr

)

___pa((void *)(long)(vaddr))

Definition at line 83 of file page_mm.h.

#define __virt_to_node

(

addr

)

(pg_data_table[(unsigned long)(addr) >> __virt_to_node_shift()])

Definition at line 148 of file page_mm.h.

#define clear_page

(

page

)

memset((page), 0, PAGE_SIZE)

Definition at line 54 of file page_mm.h.

#define clear_user_page	(		addr,
			vaddr,
			page
	)

Value:

do {    clear_page(addr);       \
        flush_dcache_page(page);    \
    } while (0)

Definition at line 58 of file page_mm.h.

#define copy_page	(		to,
			from
	)		memcpy((to), (from), PAGE_SIZE)

Definition at line 55 of file page_mm.h.

#define copy_user_page	(		to,
			from,
			vaddr,
			page
	)

Value:

do {    copy_page(to, from);        \
        flush_dcache_page(page);    \
    } while (0)

Definition at line 62 of file page_mm.h.

#define free_user_page	(		page,
			addr
	)		free_page(addr)

Definition at line 10 of file page_mm.h.

#define get_user_page

(

vaddr

)

__get_free_page(GFP_KERNEL)

Definition at line 9 of file page_mm.h.

#define page_to_pfn

(

_page

)

Value:

({                      \
    const struct page *__p = (_page);               \
	struct pglist_data *pgdat;                 \
    pgdat = &pg_data_map[page_to_nid(__p)];             \
    ((__p) - pgdat->node_mem_map) + pgdat->node_start_pfn;      \
})

Definition at line 164 of file page_mm.h.

#define page_to_virt

(

page

)

Value:

({                      \
    pfn_to_virt(page_to_pfn(page));                 \
})

Definition at line 154 of file page_mm.h.

#define pfn_to_page

(

pfn

)

Value:

({                      \
    unsigned long __pfn = (pfn);                    \
	struct pglist_data *pgdat;                 \
    pgdat = __virt_to_node((unsigned long)pfn_to_virt(__pfn));  \
    pgdat->node_mem_map + (__pfn - pgdat->node_start_pfn);      \
})

Definition at line 158 of file page_mm.h.

#define pfn_to_virt

(

pfn

)

__va((pfn) << PAGE_SHIFT)

Definition at line 127 of file page_mm.h.

#define pfn_valid

(

pfn

)

virt_addr_valid(pfn_to_virt(pfn))

Definition at line 172 of file page_mm.h.

#define virt_addr_valid

(

kaddr

)

((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)

Definition at line 171 of file page_mm.h.

#define virt_to_page

(

addr

)

Value:

({                      \
    pfn_to_page(virt_to_pfn(addr));                 \
})

Definition at line 151 of file page_mm.h.

#define virt_to_pfn

(

kaddr

)

(__pa(kaddr) >> PAGE_SHIFT)

Definition at line 126 of file page_mm.h.

#define VM_DATA_DEFAULT_FLAGS

Value:

(VM_READ | VM_WRITE | VM_EXEC | \
                 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)

Definition at line 176 of file page_mm.h.

#define WANT_PAGE_VIRTUAL

Definition at line 71 of file page_mm.h.

Variable Documentation

unsigned long m68k_memoffset

Definition at line 73 of file setup_mm.c.

int m68k_virt_to_node_shift

Definition at line 38 of file init_mm.c.

struct pglist_data* pg_data_table[]

Definition at line 41 of file init_mm.c.