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 #include <linux/scatterlist.h>
  20
  21 #include <asm/io.h>
  22 #include <asm/prom.h>
  23 #include <asm/pci-bridge.h>
  24
  25 #define PCIBIOS_MIN_IO          0x1000
  26 #define PCIBIOS_MIN_MEM         0x10000000
  27
  28 /* Values for the `which' argument to sys_pciconfig_iobase syscall.  */
  29 #define IOBASE_BRIDGE_NUMBER    0
  30 #define IOBASE_MEMORY           1
  31 #define IOBASE_IO               2
  32 #define IOBASE_ISA_IO           3
  33 #define IOBASE_ISA_MEM          4
  34
  35 #define pcibios_scan_all_fns(a, b)      0
  36
  37 /*
  38  * Set this to 1 if you want the kernel to re-assign all PCI
  39  * bus numbers (don't do that on ppc64 yet !)
  40  */
  41 #define pcibios_assign_all_busses()     0
  42
  43 extern int pci_domain_nr(struct pci_bus *bus);
  44
  45 /* Decide whether to display the domain number in /proc */
  46 extern int pci_proc_domain(struct pci_bus *bus);
  47
  48 struct vm_area_struct;
  49 /* Map a range of PCI memory or I/O space for a device into user space */
  50 int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
  51                         enum pci_mmap_state mmap_state, int write_combine);
  52
  53 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
  54 #define HAVE_PCI_MMAP   1
  55
  56 extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
  57                            size_t count);
  58 extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
  59                            size_t count);
  60 extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
  61                                       struct vm_area_struct *vma,
  62                                       enum pci_mmap_state mmap_state);
  63
  64 #define HAVE_PCI_LEGACY 1
  65
  66 /* The PCI address space does equal the physical memory
  67  * address space (no IOMMU).  The IDE and SCSI device layers use
  68  * this boolean for bounce buffer decisions.
  69  */
  70 #define PCI_DMA_BUS_IS_PHYS     (1)
  71
  72 extern void pcibios_claim_one_bus(struct pci_bus *b);
  73
  74 extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
  75
  76 extern void pcibios_resource_survey(void);
  77
  78 struct file;
  79 extern pgprot_t pci_phys_mem_access_prot(struct file *file,
  80                                          unsigned long pfn,
  81                                          unsigned long size,
  82                                          pgprot_t prot);
  83
  84 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
  85
  86 extern void pcibios_setup_bus_devices(struct pci_bus *bus);
  87 extern void pcibios_setup_bus_self(struct pci_bus *bus);
  88
  89 /* This part of code was originally in xilinx-pci.h */
  90 #ifdef CONFIG_PCI_XILINX
  91 extern void __init xilinx_pci_init(void);
  92 #else
  93 static inline void __init xilinx_pci_init(void) { return; }
  94 #endif
  95
  96 #endif  /* __KERNEL__ */
  97 #endif /* __ASM_MICROBLAZE_PCI_H */