[linux-2.6-block.git] / arch / x86 / include / asm / pci_32.h

#ifndef _ASM_X86_PCI_32_H
#define _ASM_X86_PCI_32_H


#ifdef __KERNEL__


/* Dynamic DMA mapping stuff.
 * i386 has everything mapped statically.
 */

struct pci_dev;

/* The PCI address space does equal the physical memory
 * address space.  The networking and block device layers use
 * this boolean for bounce buffer decisions.
 */
#define PCI_DMA_BUS_IS_PHYS	(1)

/* pci_unmap_{page,single} is a nop so... */
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)	dma_addr_t ADDR_NAME[0];
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)	unsigned LEN_NAME[0];
#define pci_unmap_addr(PTR, ADDR_NAME)	sizeof((PTR)->ADDR_NAME)
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
	do { break; } while (pci_unmap_addr(PTR, ADDR_NAME))
#define pci_unmap_len(PTR, LEN_NAME)		sizeof((PTR)->LEN_NAME)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
	do { break; } while (pci_unmap_len(PTR, LEN_NAME))


#endif /* __KERNEL__ */


#endif /* _ASM_X86_PCI_32_H */
Commit	Line	Data
1965aae3 PA	1	#ifndef _ASM_X86_PCI_32_H
1965aae3 PA	2	#define _ASM_X86_PCI_32_H
1da177e4	3
1da177e4 LT	4
1da177e4 LT	5	#ifdef __KERNEL__
08f1c192	6
1da177e4 LT	7
	8	/* Dynamic DMA mapping stuff.
	9	* i386 has everything mapped statically.
	10	*/
	11
1da177e4 LT	12	struct pci_dev;
	13
	14	/* The PCI address space does equal the physical memory
	15	* address space. The networking and block device layers use
	16	* this boolean for bounce buffer decisions.
	17	*/
	18	#define PCI_DMA_BUS_IS_PHYS (1)
	19
	20	/* pci_unmap_{page,single} is a nop so... */
ac2564c4 ML	21	#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME[0];
	22	#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) unsigned LEN_NAME[0];
	23	#define pci_unmap_addr(PTR, ADDR_NAME) sizeof((PTR)->ADDR_NAME)
	24	#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
	25	do { break; } while (pci_unmap_addr(PTR, ADDR_NAME))
	26	#define pci_unmap_len(PTR, LEN_NAME) sizeof((PTR)->LEN_NAME)
	27	#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
	28	do { break; } while (pci_unmap_len(PTR, LEN_NAME))
1da177e4	29
e24c2d96	30
1da177e4 LT	31	#endif /* __KERNEL__ */
1da177e4 LT	32
1da177e4	33
1965aae3	34	#endif /* _ASM_X86_PCI_32_H */