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 extern void pci_resource_to_user(const struct pci_dev *dev, int bar, 86 const struct resource *rsrc, 87 resource_size_t *start, resource_size_t *end); 88 89 extern void pcibios_setup_bus_devices(struct pci_bus *bus); 90 extern void pcibios_setup_bus_self(struct pci_bus *bus); 91 92 /* This part of code was originally in xilinx-pci.h */ 93 #ifdef CONFIG_PCI_XILINX 94 extern void __init xilinx_pci_init(void); 95 #else 96 static inline void __init xilinx_pci_init(void) { return; } 97 #endif 98 99 #endif /* __KERNEL__ */ 100 #endif /* __ASM_MICROBLAZE_PCI_H */ 101