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 30 struct 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 extern int pci_domain_nr(struct pci_bus *bus); 48 49 /* Decide whether to display the domain number in /proc */ 50 extern int pci_proc_domain(struct pci_bus *bus); 51 52 struct vm_area_struct; 53 /* Map a range of PCI memory or I/O space for a device into user space */ 54 int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, 55 enum pci_mmap_state mmap_state, int write_combine); 56 57 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ 58 #define HAVE_PCI_MMAP 1 59 60 extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, 61 size_t count); 62 extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val, 63 size_t count); 64 extern int pci_mmap_legacy_page_range(struct pci_bus *bus, 65 struct vm_area_struct *vma, 66 enum pci_mmap_state mmap_state); 67 68 #define HAVE_PCI_LEGACY 1 69 70 /* The PCI address space does equal the physical memory 71 * address space (no IOMMU). The IDE and SCSI device layers use 72 * this boolean for bounce buffer decisions. 73 */ 74 #define PCI_DMA_BUS_IS_PHYS (1) 75 76 extern void pcibios_claim_one_bus(struct pci_bus *b); 77 78 extern void pcibios_finish_adding_to_bus(struct pci_bus *bus); 79 80 extern void pcibios_resource_survey(void); 81 82 extern struct pci_controller *init_phb_dynamic(struct device_node *dn); 83 extern int remove_phb_dynamic(struct pci_controller *phb); 84 85 extern struct pci_dev *of_create_pci_dev(struct device_node *node, 86 struct pci_bus *bus, int devfn); 87 88 extern void of_scan_pci_bridge(struct device_node *node, 89 struct pci_dev *dev); 90 91 extern void of_scan_bus(struct device_node *node, struct pci_bus *bus); 92 extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus); 93 94 extern int pci_bus_find_capability(struct pci_bus *bus, 95 unsigned int devfn, int cap); 96 97 struct file; 98 extern pgprot_t pci_phys_mem_access_prot(struct file *file, 99 unsigned long pfn, 100 unsigned long size, 101 pgprot_t prot); 102 103 #define HAVE_ARCH_PCI_RESOURCE_TO_USER 104 extern void pci_resource_to_user(const struct pci_dev *dev, int bar, 105 const struct resource *rsrc, 106 resource_size_t *start, resource_size_t *end); 107 108 extern void pcibios_setup_bus_devices(struct pci_bus *bus); 109 extern void pcibios_setup_bus_self(struct pci_bus *bus); 110 111 /* This part of code was originally in xilinx-pci.h */ 112 #ifdef CONFIG_PCI_XILINX 113 extern void __init xilinx_pci_init(void); 114 #else 115 static inline void __init xilinx_pci_init(void) { return; } 116 #endif 117 118 #endif /* __KERNEL__ */ 119 #endif /* __ASM_MICROBLAZE_PCI_H */ 120