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

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 *
 * Based on powerpc version
 */

#ifndef __ASM_MICROBLAZE_PCI_H
#define __ASM_MICROBLAZE_PCI_H
#ifdef __KERNEL__

#include <linux/types.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/dma-mapping.h>
#include <linux/pci.h>

#include <asm/scatterlist.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/pci-bridge.h>

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

#define PCIBIOS_MIN_IO		0x1000
#define PCIBIOS_MIN_MEM		0x10000000

struct pci_dev;

/* Values for the `which' argument to sys_pciconfig_iobase syscall.  */
#define IOBASE_BRIDGE_NUMBER	0
#define IOBASE_MEMORY		1
#define IOBASE_IO		2
#define IOBASE_ISA_IO		3
#define IOBASE_ISA_MEM		4

#define pcibios_scan_all_fns(a, b)	0

/*
 * Set this to 1 if you want the kernel to re-assign all PCI
 * bus numbers (don't do that on ppc64 yet !)
 */
#define pcibios_assign_all_busses()	0

static inline void pcibios_penalize_isa_irq(int irq, int active)
{
	/* We don't do dynamic PCI IRQ allocation */
}

#ifdef CONFIG_PCI
extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
extern struct dma_map_ops *get_pci_dma_ops(void);
#else	/* CONFIG_PCI */
#define set_pci_dma_ops(d)
#define get_pci_dma_ops()	NULL
#endif

#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

extern int pci_domain_nr(struct pci_bus *bus);

/* Decide whether to display the domain number in /proc */
extern int pci_proc_domain(struct pci_bus *bus);

struct vm_area_struct;
/* Map a range of PCI memory or I/O space for a device into user space */
int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
			enum pci_mmap_state mmap_state, int write_combine);

/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
#define HAVE_PCI_MMAP	1

extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
			   size_t count);
extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
			   size_t count);
extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
				      struct vm_area_struct *vma,
				      enum pci_mmap_state mmap_state);

#define HAVE_PCI_LEGACY	1

/* The PCI address space does equal the physical memory
 * address space (no IOMMU).  The IDE and SCSI device layers use
 * this boolean for bounce buffer decisions.
 */
#define PCI_DMA_BUS_IS_PHYS     (1)

static inline struct resource *pcibios_select_root(struct pci_dev *pdev,
			struct resource *res)
{
	struct resource *root = NULL;

	if (res->flags & IORESOURCE_IO)
		root = &ioport_resource;
	if (res->flags & IORESOURCE_MEM)
		root = &iomem_resource;

	return root;
}

extern void pcibios_claim_one_bus(struct pci_bus *b);

extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);

extern void pcibios_resource_survey(void);

extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
extern int remove_phb_dynamic(struct pci_controller *phb);

extern struct pci_dev *of_create_pci_dev(struct device_node *node,
					struct pci_bus *bus, int devfn);

extern void of_scan_pci_bridge(struct device_node *node,
				struct pci_dev *dev);

extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);

extern int pci_read_irq_line(struct pci_dev *dev);

extern int pci_bus_find_capability(struct pci_bus *bus,
						unsigned int devfn, int cap);

struct file;
extern pgprot_t	pci_phys_mem_access_prot(struct file *file,
					 unsigned long pfn,
					 unsigned long size,
					 pgprot_t prot);

#define HAVE_ARCH_PCI_RESOURCE_TO_USER
extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
				 const struct resource *rsrc,
				 resource_size_t *start, resource_size_t *end);

extern void pcibios_setup_bus_devices(struct pci_bus *bus);
extern void pcibios_setup_bus_self(struct pci_bus *bus);

/* This part of code was originally in xilinx-pci.h */
#ifdef CONFIG_PCI_XILINX
extern void __init xilinx_pci_init(void);
#else
static inline void __init xilinx_pci_init(void) { return; }
#endif

#endif	/* __KERNEL__ */
#endif /* __ASM_MICROBLAZE_PCI_H */
Commit	Line	Data
830980a0 MS	1	/*
	2	* This program is free software; you can redistribute it and/or
	3	* modify it under the terms of the GNU General Public License
	4	* as published by the Free Software Foundation; either version
	5	* 2 of the License, or (at your option) any later version.
	6	*
	7	* Based on powerpc version
	8	*/
	9
	10	#ifndef __ASM_MICROBLAZE_PCI_H
	11	#define __ASM_MICROBLAZE_PCI_H
	12	#ifdef __KERNEL__
	13
	14	#include <linux/types.h>
	15	#include <linux/slab.h>
	16	#include <linux/string.h>
	17	#include <linux/dma-mapping.h>
	18	#include <linux/pci.h>
	19
	20	#include <asm/scatterlist.h>
	21	#include <asm/io.h>
	22	#include <asm/prom.h>
	23	#include <asm/pci-bridge.h>
	24
c74c8b1d JL	25	#include <asm-generic/pci-dma-compat.h>
c74c8b1d JL	26
830980a0 MS	27	#define PCIBIOS_MIN_IO 0x1000
	28	#define PCIBIOS_MIN_MEM 0x10000000
	29
	30	struct pci_dev;
	31
	32	/* Values for the `which' argument to sys_pciconfig_iobase syscall. */
	33	#define IOBASE_BRIDGE_NUMBER 0
	34	#define IOBASE_MEMORY 1
	35	#define IOBASE_IO 2
	36	#define IOBASE_ISA_IO 3
	37	#define IOBASE_ISA_MEM 4
	38
	39	#define pcibios_scan_all_fns(a, b) 0
	40
	41	/*
	42	* Set this to 1 if you want the kernel to re-assign all PCI
	43	* bus numbers (don't do that on ppc64 yet !)
	44	*/
72bdee79	45	#define pcibios_assign_all_busses() 0
830980a0	46
830980a0 MS	47	static inline void pcibios_penalize_isa_irq(int irq, int active)
	48	{
	49	/* We don't do dynamic PCI IRQ allocation */
	50	}
	51
	52	#ifdef CONFIG_PCI
	53	extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
	54	extern struct dma_map_ops *get_pci_dma_ops(void);
	55	#else /* CONFIG_PCI */
	56	#define set_pci_dma_ops(d)
	57	#define get_pci_dma_ops() NULL
	58	#endif
	59
	60	#ifdef CONFIG_PCI
	61	static inline void pci_dma_burst_advice(struct pci_dev *pdev,
	62	enum pci_dma_burst_strategy *strat,
	63	unsigned long *strategy_parameter)
	64	{
	65	*strat = PCI_DMA_BURST_INFINITY;
	66	*strategy_parameter = ~0UL;
	67	}
	68	#endif
	69
	70	extern int pci_domain_nr(struct pci_bus *bus);
	71
	72	/* Decide whether to display the domain number in /proc */
	73	extern int pci_proc_domain(struct pci_bus *bus);
	74
	75	struct vm_area_struct;
	76	/* Map a range of PCI memory or I/O space for a device into user space */
	77	int pci_mmap_page_range(struct pci_dev pdev, struct vm_area_struct vma,
	78	enum pci_mmap_state mmap_state, int write_combine);
	79
	80	/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
	81	#define HAVE_PCI_MMAP 1
	82
	83	extern int pci_legacy_read(struct pci_bus bus, loff_t port, u32 val,
	84	size_t count);
	85	extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
	86	size_t count);
	87	extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
	88	struct vm_area_struct *vma,
	89	enum pci_mmap_state mmap_state);
	90
	91	#define HAVE_PCI_LEGACY 1
	92
830980a0 MS	93	/* The PCI address space does equal the physical memory
	94	* address space (no IOMMU). The IDE and SCSI device layers use
	95	* this boolean for bounce buffer decisions.
	96	*/
	97	#define PCI_DMA_BUS_IS_PHYS (1)
	98
830980a0 MS	99	static inline struct resource pcibios_select_root(struct pci_dev pdev,
	100	struct resource *res)
	101	{
	102	struct resource *root = NULL;
	103
	104	if (res->flags & IORESOURCE_IO)
	105	root = &ioport_resource;
	106	if (res->flags & IORESOURCE_MEM)
	107	root = &iomem_resource;
	108
	109	return root;
	110	}
	111
	112	extern void pcibios_claim_one_bus(struct pci_bus *b);
	113
	114	extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
	115
	116	extern void pcibios_resource_survey(void);
	117
	118	extern struct pci_controller init_phb_dynamic(struct device_node dn);
	119	extern int remove_phb_dynamic(struct pci_controller *phb);
	120
	121	extern struct pci_dev of_create_pci_dev(struct device_node node,
	122	struct pci_bus *bus, int devfn);
	123
	124	extern void of_scan_pci_bridge(struct device_node *node,
	125	struct pci_dev *dev);
	126
	127	extern void of_scan_bus(struct device_node node, struct pci_bus bus);
	128	extern void of_rescan_bus(struct device_node node, struct pci_bus bus);
	129
	130	extern int pci_read_irq_line(struct pci_dev *dev);
	131
	132	extern int pci_bus_find_capability(struct pci_bus *bus,
	133	unsigned int devfn, int cap);
	134
	135	struct file;
	136	extern pgprot_t pci_phys_mem_access_prot(struct file *file,
	137	unsigned long pfn,
	138	unsigned long size,
	139	pgprot_t prot);
	140
	141	#define HAVE_ARCH_PCI_RESOURCE_TO_USER
	142	extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
	143	const struct resource *rsrc,
	144	resource_size_t start, resource_size_t end);
	145
	146	extern void pcibios_setup_bus_devices(struct pci_bus *bus);
	147	extern void pcibios_setup_bus_self(struct pci_bus *bus);
	148
25985edc	149	/* This part of code was originally in xilinx-pci.h */
733cc218 MS	150	#ifdef CONFIG_PCI_XILINX
	151	extern void __init xilinx_pci_init(void);
	152	#else
	153	static inline void __init xilinx_pci_init(void) { return; }
	154	#endif
	155
830980a0 MS	156	#endif /* __KERNEL__ */
830980a0 MS	157	#endif /* __ASM_MICROBLAZE_PCI_H */