[linux-2.6-block.git] / include / asm-x86_64 / pci.h

#ifndef __x8664_PCI_H
#define __x8664_PCI_H

#include <asm/io.h>

#ifdef __KERNEL__

#include <linux/mm.h> /* for struct page */

/* Can be used to override the logic in pci_scan_bus for skipping
   already-configured bus numbers - to be used for buggy BIOSes
   or architectures with incomplete PCI setup by the loader */

#ifdef CONFIG_PCI
extern unsigned int pcibios_assign_all_busses(void);
#else
#define pcibios_assign_all_busses()	0
#endif
#define pcibios_scan_all_fns(a, b)	0

extern unsigned long pci_mem_start;
#define PCIBIOS_MIN_IO		0x1000
#define PCIBIOS_MIN_MEM		(pci_mem_start)

#define PCIBIOS_MIN_CARDBUS_IO	0x4000

void pcibios_config_init(void);
struct pci_bus * pcibios_scan_root(int bus);
extern int (*pci_config_read)(int seg, int bus, int dev, int fn, int reg, int len, u32 *value);
extern int (*pci_config_write)(int seg, int bus, int dev, int fn, int reg, int len, u32 value);

void pcibios_set_master(struct pci_dev *dev);
void pcibios_penalize_isa_irq(int irq, int active);
struct irq_routing_table *pcibios_get_irq_routing_table(void);
int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);

#include <linux/types.h>
#include <linux/slab.h>
#include <asm/scatterlist.h>
#include <linux/string.h>
#include <asm/page.h>

extern void pci_iommu_alloc(void);
extern int iommu_setup(char *opt);

/* The PCI address space does equal the physical memory
 * address space.  The networking and block device layers use
 * this boolean for bounce buffer decisions
 *
 * On AMD64 it mostly equals, but we set it to zero if a hardware
 * IOMMU (gart) of sotware IOMMU (swiotlb) is available.
 */
#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)

#if defined(CONFIG_IOMMU) || defined(CONFIG_CALGARY_IOMMU)

#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)	\
	dma_addr_t ADDR_NAME;
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)		\
	__u32 LEN_NAME;
#define pci_unmap_addr(PTR, ADDR_NAME)			\
	((PTR)->ADDR_NAME)
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)		\
	(((PTR)->ADDR_NAME) = (VAL))
#define pci_unmap_len(PTR, LEN_NAME)			\
	((PTR)->LEN_NAME)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL)		\
	(((PTR)->LEN_NAME) = (VAL))

#else
/* No IOMMU */

#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
#define pci_unmap_addr(PTR, ADDR_NAME)		(0)
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)	do { } while (0)
#define pci_unmap_len(PTR, LEN_NAME)		(0)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL)	do { } while (0)

#endif

#include <asm-generic/pci-dma-compat.h>

#ifdef CONFIG_PCI
static inline void pci_dma_burst_advice(struct pci_dev *pdev,
					enum pci_dma_burst_strategy *strat,
					unsigned long *strategy_parameter)
{
	*strat = PCI_DMA_BURST_INFINITY;
	*strategy_parameter = ~0UL;
}
#endif

#define HAVE_PCI_MMAP
extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
			       enum pci_mmap_state mmap_state, int write_combine);

#endif /* __KERNEL__ */

/* generic pci stuff */
#ifdef CONFIG_PCI
#include <asm-generic/pci.h>
#endif

#endif /* __x8664_PCI_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef __x8664_PCI_H
	2	#define __x8664_PCI_H
	3
1da177e4 LT	4	#include <asm/io.h>
	5
	6	#ifdef __KERNEL__
	7
	8	#include <linux/mm.h> /* for struct page */
	9
	10	/* Can be used to override the logic in pci_scan_bus for skipping
	11	already-configured bus numbers - to be used for buggy BIOSes
	12	or architectures with incomplete PCI setup by the loader */
	13
	14	#ifdef CONFIG_PCI
	15	extern unsigned int pcibios_assign_all_busses(void);
	16	#else
	17	#define pcibios_assign_all_busses() 0
	18	#endif
	19	#define pcibios_scan_all_fns(a, b) 0
	20
1da177e4	21	extern unsigned long pci_mem_start;
2ba84684	22	#define PCIBIOS_MIN_IO 0x1000
1da177e4 LT	23	#define PCIBIOS_MIN_MEM (pci_mem_start)
1da177e4 LT	24
2ba84684 LT	25	#define PCIBIOS_MIN_CARDBUS_IO 0x4000
2ba84684 LT	26
1da177e4 LT	27	void pcibios_config_init(void);
	28	struct pci_bus * pcibios_scan_root(int bus);
	29	extern int (pci_config_read)(int seg, int bus, int dev, int fn, int reg, int len, u32 value);
	30	extern int (*pci_config_write)(int seg, int bus, int dev, int fn, int reg, int len, u32 value);
	31
	32	void pcibios_set_master(struct pci_dev *dev);
c9c3e457	33	void pcibios_penalize_isa_irq(int irq, int active);
1da177e4 LT	34	struct irq_routing_table *pcibios_get_irq_routing_table(void);
	35	int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
	36
	37	#include <linux/types.h>
	38	#include <linux/slab.h>
	39	#include <asm/scatterlist.h>
	40	#include <linux/string.h>
	41	#include <asm/page.h>
	42
0dc243ae	43	extern void pci_iommu_alloc(void);
1da177e4 LT	44	extern int iommu_setup(char *opt);
1da177e4 LT	45
1da177e4 LT	46	/* The PCI address space does equal the physical memory
	47	* address space. The networking and block device layers use
	48	* this boolean for bounce buffer decisions
	49	*
17a941d8 MBY	50	* On AMD64 it mostly equals, but we set it to zero if a hardware
17a941d8 MBY	51	* IOMMU (gart) of sotware IOMMU (swiotlb) is available.
1da177e4	52	*/
17a941d8 MBY	53	#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
17a941d8 MBY	54
e465058d	55	#if defined(CONFIG_IOMMU) \|\| defined(CONFIG_CALGARY_IOMMU)
1da177e4	56
1da177e4 LT	57	#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
	58	dma_addr_t ADDR_NAME;
	59	#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
	60	__u32 LEN_NAME;
	61	#define pci_unmap_addr(PTR, ADDR_NAME) \
	62	((PTR)->ADDR_NAME)
	63	#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
	64	(((PTR)->ADDR_NAME) = (VAL))
	65	#define pci_unmap_len(PTR, LEN_NAME) \
	66	((PTR)->LEN_NAME)
	67	#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
	68	(((PTR)->LEN_NAME) = (VAL))
	69
	70	#else
	71	/* No IOMMU */
	72
1da177e4 LT	73	#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
	74	#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
	75	#define pci_unmap_addr(PTR, ADDR_NAME) (0)
	76	#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
	77	#define pci_unmap_len(PTR, LEN_NAME) (0)
	78	#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
	79
	80	#endif
	81
	82	#include <asm-generic/pci-dma-compat.h>
	83
bb4a61b6	84	#ifdef CONFIG_PCI
e24c2d96 DM	85	static inline void pci_dma_burst_advice(struct pci_dev *pdev,
	86	enum pci_dma_burst_strategy *strat,
	87	unsigned long *strategy_parameter)
	88	{
	89	*strat = PCI_DMA_BURST_INFINITY;
	90	*strategy_parameter = ~0UL;
	91	}
bb4a61b6	92	#endif
e24c2d96	93
1da177e4 LT	94	#define HAVE_PCI_MMAP
	95	extern int pci_mmap_page_range(struct pci_dev dev, struct vm_area_struct vma,
	96	enum pci_mmap_state mmap_state, int write_combine);
	97
1da177e4 LT	98	#endif /* __KERNEL__ */
	99
	100	/* generic pci stuff */
	101	#ifdef CONFIG_PCI
	102	#include <asm-generic/pci.h>
	103	#endif
	104
	105	#endif /* __x8664_PCI_H */