arch/mn10300/include/asm/pci.h

   1 /* MN10300 PCI definitions
   2  *
   3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11 #ifndef _ASM_PCI_H
  12 #define _ASM_PCI_H
  13
  14 #ifdef __KERNEL__
  15 #include <linux/mm.h>           /* for struct page */
  16
  17 #if 0
  18 #define __pcbdebug(FMT, ADDR, ...) \
  19         printk(KERN_DEBUG "PCIBRIDGE[%08x]: "FMT"\n", \
  20                (u32)(ADDR), ##__VA_ARGS__)
  21
  22 #define __pcidebug(FMT, BUS, DEVFN, WHERE,...)          \
  23 do {                                                    \
  24         printk(KERN_DEBUG "PCI[%02x:%02x.%x + %02x]: "FMT"\n",  \
  25                (BUS)->number,                                   \
  26                PCI_SLOT(DEVFN),                                 \
  27                PCI_FUNC(DEVFN),                                 \
  28                (u32)(WHERE), ##__VA_ARGS__);                    \
  29 } while (0)
  30
  31 #else
  32 #define __pcbdebug(FMT, ADDR, ...)              do {} while (0)
  33 #define __pcidebug(FMT, BUS, DEVFN, WHERE, ...) do {} while (0)
  34 #endif
  35
  36 /* Can be used to override the logic in pci_scan_bus for skipping
  37  * already-configured bus numbers - to be used for buggy BIOSes or
  38  * architectures with incomplete PCI setup by the loader */
  39
  40 #ifdef CONFIG_PCI
  41 #define pcibios_assign_all_busses()     1
  42 extern void unit_pci_init(void);
  43 #else
  44 #define pcibios_assign_all_busses()     0
  45 #endif
  46
  47 extern unsigned long pci_mem_start;
  48 #define PCIBIOS_MIN_IO          0xBE000004
  49 #define PCIBIOS_MIN_MEM         0xB8000000
  50
  51 void pcibios_set_master(struct pci_dev *dev);
  52 void pcibios_penalize_isa_irq(int irq);
  53
  54 /* Dynamic DMA mapping stuff.
  55  * i386 has everything mapped statically.
  56  */
  57
  58 #include <linux/types.h>
  59 #include <linux/slab.h>
  60 #include <asm/scatterlist.h>
  61 #include <linux/string.h>
  62 #include <asm/io.h>
  63
  64 struct pci_dev;
  65
  66 /* The PCI address space does equal the physical memory
  67  * address space.  The networking and block device layers use
  68  * this boolean for bounce buffer decisions.
  69  */
  70 #define PCI_DMA_BUS_IS_PHYS     (1)
  71
  72 /* Return the index of the PCI controller for device. */
  73 static inline int pci_controller_num(struct pci_dev *dev)
  74 {
  75         return 0;
  76 }
  77
  78 #define HAVE_PCI_MMAP
  79 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
  80                                enum pci_mmap_state mmap_state,
  81                                int write_combine);
  82
  83 #endif /* __KERNEL__ */
  84
  85 /* implement the pci_ DMA API in terms of the generic device dma_ one */
  86 #include <asm-generic/pci-dma-compat.h>
  87
  88 /**
  89  * pcibios_resource_to_bus - convert resource to PCI bus address
  90  * @dev: device which owns this resource
  91  * @region: converted bus-centric region (start,end)
  92  * @res: resource to convert
  93  *
  94  * Convert a resource to a PCI device bus address or bus window.
  95  */
  96 extern void pcibios_resource_to_bus(struct pci_dev *dev,
  97                                     struct pci_bus_region *region,
  98                                     struct resource *res);
  99
 100 extern void pcibios_bus_to_resource(struct pci_dev *dev,
 101                                     struct resource *res,
 102                                     struct pci_bus_region *region);
 103
 104 static inline struct resource *
 105 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
 106 {
 107         struct resource *root = NULL;
 108
 109         if (res->flags & IORESOURCE_IO)
 110                 root = &ioport_resource;
 111         if (res->flags & IORESOURCE_MEM)
 112                 root = &iomem_resource;
 113
 114         return root;
 115 }
 116
 117 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 118 {
 119         return channel ? 15 : 14;
 120 }
 121
 122 #endif /* _ASM_PCI_H */