LXR linux/arch/microblaze/include/asm/pci.h

   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
  25#include <asm-generic/pci-dma-compat.h>
  26
  27#define PCIBIOS_MIN_IO          0x1000
  28#define PCIBIOS_MIN_MEM         0x10000000
  29
  30struct 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 */
  45#define pcibios_assign_all_busses()     0
  46
  47#ifdef CONFIG_PCI
  48static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  49                                        enum pci_dma_burst_strategy *strat,
  50                                        unsigned long *strategy_parameter)
  51{
  52        *strat = PCI_DMA_BURST_INFINITY;
  53        *strategy_parameter = ~0UL;
  54}
  55#endif
  56
  57extern int pci_domain_nr(struct pci_bus *bus);
  58
  59/* Decide whether to display the domain number in /proc */
  60extern int pci_proc_domain(struct pci_bus *bus);
  61
  62struct vm_area_struct;
  63/* Map a range of PCI memory or I/O space for a device into user space */
  64int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
  65                        enum pci_mmap_state mmap_state, int write_combine);
  66
  67/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
  68#define HAVE_PCI_MMAP   1
  69
  70extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
  71                           size_t count);
  72extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
  73                           size_t count);
  74extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
  75                                      struct vm_area_struct *vma,
  76                                      enum pci_mmap_state mmap_state);
  77
  78#define HAVE_PCI_LEGACY 1
  79
  80/* The PCI address space does equal the physical memory
  81 * address space (no IOMMU).  The IDE and SCSI device layers use
  82 * this boolean for bounce buffer decisions.
  83 */
  84#define PCI_DMA_BUS_IS_PHYS     (1)
  85
  86static inline struct resource *pcibios_select_root(struct pci_dev *pdev,
  87                        struct resource *res)
  88{
  89        struct resource *root = NULL;
  90
  91        if (res->flags & IORESOURCE_IO)
  92                root = &ioport_resource;
  93        if (res->flags & IORESOURCE_MEM)
  94                root = &iomem_resource;
  95
  96        return root;
  97}
  98
  99extern void pcibios_claim_one_bus(struct pci_bus *b);
 100
 101extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
 102
 103extern void pcibios_resource_survey(void);
 104
 105extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
 106extern int remove_phb_dynamic(struct pci_controller *phb);
 107
 108extern struct pci_dev *of_create_pci_dev(struct device_node *node,
 109                                        struct pci_bus *bus, int devfn);
 110
 111extern void of_scan_pci_bridge(struct device_node *node,
 112                                struct pci_dev *dev);
 113
 114extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
 115extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
 116
 117extern int pci_bus_find_capability(struct pci_bus *bus,
 118                                                unsigned int devfn, int cap);
 119
 120struct file;
 121extern pgprot_t pci_phys_mem_access_prot(struct file *file,
 122                                         unsigned long pfn,
 123                                         unsigned long size,
 124                                         pgprot_t prot);
 125
 126#define HAVE_ARCH_PCI_RESOURCE_TO_USER
 127extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
 128                                 const struct resource *rsrc,
 129                                 resource_size_t *start, resource_size_t *end);
 130
 131extern void pcibios_setup_bus_devices(struct pci_bus *bus);
 132extern void pcibios_setup_bus_self(struct pci_bus *bus);
 133
 134/* This part of code was originally in xilinx-pci.h */
 135#ifdef CONFIG_PCI_XILINX
 136extern void __init xilinx_pci_init(void);
 137#else
 138static inline void __init xilinx_pci_init(void) { return; }
 139#endif
 140
 141#endif  /* __KERNEL__ */
 142#endif /* __ASM_MICROBLAZE_PCI_H */
 143