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kernel/linux-rt-4.4.41/arch/microblaze/include/asm/pci.h 2.95 KB
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  /*
   * 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 <linux/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
  
  /* 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
  
  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)
  
  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);
  
  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 */