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

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 *
   4 * Based on powerpc version
   5 */
   6
   7#ifndef __ASM_MICROBLAZE_PCI_H
   8#define __ASM_MICROBLAZE_PCI_H
   9#ifdef __KERNEL__
  10
  11#include <linux/types.h>
  12#include <linux/slab.h>
  13#include <linux/string.h>
  14#include <linux/dma-mapping.h>
  15#include <linux/pci.h>
  16#include <linux/scatterlist.h>
  17
  18#include <asm/io.h>
  19#include <asm/pci-bridge.h>
  20
  21#define PCIBIOS_MIN_IO          0x1000
  22#define PCIBIOS_MIN_MEM         0x10000000
  23
  24/* Values for the `which' argument to sys_pciconfig_iobase syscall.  */
  25#define IOBASE_BRIDGE_NUMBER    0
  26#define IOBASE_MEMORY           1
  27#define IOBASE_IO               2
  28#define IOBASE_ISA_IO           3
  29#define IOBASE_ISA_MEM          4
  30
  31#define pcibios_scan_all_fns(a, b)      0
  32
  33/*
  34 * Set this to 1 if you want the kernel to re-assign all PCI
  35 * bus numbers (don't do that on ppc64 yet !)
  36 */
  37#define pcibios_assign_all_busses()     0
  38
  39extern int pci_domain_nr(struct pci_bus *bus);
  40
  41/* Decide whether to display the domain number in /proc */
  42extern int pci_proc_domain(struct pci_bus *bus);
  43
  44struct vm_area_struct;
  45
  46/* Tell PCI code what kind of PCI resource mappings we support */
  47#define HAVE_PCI_MMAP                   1
  48#define ARCH_GENERIC_PCI_MMAP_RESOURCE  1
  49#define arch_can_pci_mmap_io()          1
  50
  51extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
  52                           size_t count);
  53extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
  54                           size_t count);
  55extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
  56                                      struct vm_area_struct *vma,
  57                                      enum pci_mmap_state mmap_state);
  58
  59#define HAVE_PCI_LEGACY 1
  60
  61extern void pcibios_resource_survey(void);
  62
  63struct file;
  64extern pgprot_t pci_phys_mem_access_prot(struct file *file,
  65                                         unsigned long pfn,
  66                                         unsigned long size,
  67                                         pgprot_t prot);
  68
  69/* This part of code was originally in xilinx-pci.h */
  70#ifdef CONFIG_PCI_XILINX
  71extern void __init xilinx_pci_init(void);
  72#else
  73static inline void __init xilinx_pci_init(void) { return; }
  74#endif
  75
  76#endif  /* __KERNEL__ */
  77#endif /* __ASM_MICROBLAZE_PCI_H */
  78