Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __PPC64_PCI_H |
| 2 | #define __PPC64_PCI_H |
| 3 | #ifdef __KERNEL__ |
| 4 | |
| 5 | /* |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/types.h> |
| 13 | #include <linux/slab.h> |
| 14 | #include <linux/string.h> |
| 15 | #include <linux/dma-mapping.h> |
| 16 | |
| 17 | #include <asm/machdep.h> |
| 18 | #include <asm/scatterlist.h> |
| 19 | #include <asm/io.h> |
| 20 | #include <asm/prom.h> |
| 21 | |
| 22 | #include <asm-generic/pci-dma-compat.h> |
| 23 | |
| 24 | #define PCIBIOS_MIN_IO 0x1000 |
| 25 | #define PCIBIOS_MIN_MEM 0x10000000 |
| 26 | |
| 27 | struct pci_dev; |
| 28 | |
| 29 | #ifdef CONFIG_PPC_ISERIES |
| 30 | #define pcibios_scan_all_fns(a, b) 0 |
| 31 | #else |
| 32 | extern int pcibios_scan_all_fns(struct pci_bus *bus, int devfn); |
| 33 | #endif |
| 34 | |
| 35 | static inline void pcibios_set_master(struct pci_dev *dev) |
| 36 | { |
| 37 | /* No special bus mastering setup handling */ |
| 38 | } |
| 39 | |
David Shaohua Li | c9c3e45 | 2005-04-01 00:07:31 -0500 | [diff] [blame] | 40 | static inline void pcibios_penalize_isa_irq(int irq, int active) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | { |
| 42 | /* We don't do dynamic PCI IRQ allocation */ |
| 43 | } |
| 44 | |
| 45 | #define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ |
| 46 | static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) |
| 47 | { |
| 48 | if (ppc_md.pci_get_legacy_ide_irq) |
| 49 | return ppc_md.pci_get_legacy_ide_irq(dev, channel); |
| 50 | return channel ? 15 : 14; |
| 51 | } |
| 52 | |
| 53 | #define HAVE_ARCH_PCI_MWI 1 |
| 54 | static inline int pcibios_prep_mwi(struct pci_dev *dev) |
| 55 | { |
| 56 | /* |
| 57 | * We would like to avoid touching the cacheline size or MWI bit |
| 58 | * but we cant do that with the current pcibios_prep_mwi |
| 59 | * interface. pSeries firmware sets the cacheline size (which is not |
| 60 | * the cpu cacheline size in all cases) and hardware treats MWI |
| 61 | * the same as memory write. So we dont touch the cacheline size |
| 62 | * here and allow the generic code to set the MWI bit. |
| 63 | */ |
| 64 | return 0; |
| 65 | } |
| 66 | |
| 67 | extern unsigned int pcibios_assign_all_busses(void); |
| 68 | |
| 69 | extern struct dma_mapping_ops pci_dma_ops; |
| 70 | |
| 71 | /* For DAC DMA, we currently don't support it by default, but |
| 72 | * we let the platform override this |
| 73 | */ |
| 74 | static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask) |
| 75 | { |
| 76 | if (pci_dma_ops.dac_dma_supported) |
| 77 | return pci_dma_ops.dac_dma_supported(&hwdev->dev, mask); |
| 78 | return 0; |
| 79 | } |
| 80 | |
Andrew Morton | bb4a61b | 2005-06-06 23:07:46 -0700 | [diff] [blame] | 81 | #ifdef CONFIG_PCI |
David S. Miller | e24c2d9 | 2005-06-02 12:55:50 -0700 | [diff] [blame] | 82 | static inline void pci_dma_burst_advice(struct pci_dev *pdev, |
| 83 | enum pci_dma_burst_strategy *strat, |
| 84 | unsigned long *strategy_parameter) |
| 85 | { |
| 86 | unsigned long cacheline_size; |
| 87 | u8 byte; |
| 88 | |
| 89 | pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); |
| 90 | if (byte == 0) |
| 91 | cacheline_size = 1024; |
| 92 | else |
| 93 | cacheline_size = (int) byte * 4; |
| 94 | |
| 95 | *strat = PCI_DMA_BURST_MULTIPLE; |
| 96 | *strategy_parameter = cacheline_size; |
| 97 | } |
Andrew Morton | bb4a61b | 2005-06-06 23:07:46 -0700 | [diff] [blame] | 98 | #endif |
David S. Miller | e24c2d9 | 2005-06-02 12:55:50 -0700 | [diff] [blame] | 99 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | extern int pci_domain_nr(struct pci_bus *bus); |
| 101 | |
| 102 | /* Decide whether to display the domain number in /proc */ |
| 103 | extern int pci_proc_domain(struct pci_bus *bus); |
| 104 | |
| 105 | struct vm_area_struct; |
| 106 | /* Map a range of PCI memory or I/O space for a device into user space */ |
| 107 | int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, |
| 108 | enum pci_mmap_state mmap_state, int write_combine); |
| 109 | |
| 110 | /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ |
| 111 | #define HAVE_PCI_MMAP 1 |
| 112 | |
| 113 | /* pci_unmap_{single,page} is not a nop, thus... */ |
| 114 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ |
| 115 | dma_addr_t ADDR_NAME; |
| 116 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ |
| 117 | __u32 LEN_NAME; |
| 118 | #define pci_unmap_addr(PTR, ADDR_NAME) \ |
| 119 | ((PTR)->ADDR_NAME) |
| 120 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ |
| 121 | (((PTR)->ADDR_NAME) = (VAL)) |
| 122 | #define pci_unmap_len(PTR, LEN_NAME) \ |
| 123 | ((PTR)->LEN_NAME) |
| 124 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ |
| 125 | (((PTR)->LEN_NAME) = (VAL)) |
| 126 | |
| 127 | /* The PCI address space does equal the physical memory |
| 128 | * address space. The networking and block device layers use |
| 129 | * this boolean for bounce buffer decisions. |
| 130 | */ |
| 131 | #define PCI_DMA_BUS_IS_PHYS (0) |
| 132 | |
| 133 | extern void |
| 134 | pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, |
| 135 | struct resource *res); |
| 136 | |
Dominik Brodowski | 43c3473 | 2005-08-04 18:06:21 -0700 | [diff] [blame] | 137 | extern void |
| 138 | pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, |
| 139 | struct pci_bus_region *region); |
| 140 | |
David S. Miller | 085ae41 | 2005-08-08 13:19:08 -0700 | [diff] [blame] | 141 | static inline struct resource * |
| 142 | pcibios_select_root(struct pci_dev *pdev, struct resource *res) |
| 143 | { |
| 144 | struct resource *root = NULL; |
| 145 | |
| 146 | if (res->flags & IORESOURCE_IO) |
| 147 | root = &ioport_resource; |
| 148 | if (res->flags & IORESOURCE_MEM) |
| 149 | root = &iomem_resource; |
| 150 | |
| 151 | return root; |
| 152 | } |
| 153 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | extern int |
| 155 | unmap_bus_range(struct pci_bus *bus); |
| 156 | |
| 157 | extern int |
| 158 | remap_bus_range(struct pci_bus *bus); |
| 159 | |
| 160 | extern void |
| 161 | pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus); |
| 162 | |
| 163 | extern struct pci_controller *init_phb_dynamic(struct device_node *dn); |
| 164 | |
John Rose | ead8371 | 2005-11-04 15:30:56 -0600 | [diff] [blame] | 165 | extern struct pci_dev *of_create_pci_dev(struct device_node *node, |
| 166 | struct pci_bus *bus, int devfn); |
| 167 | |
| 168 | extern void of_scan_pci_bridge(struct device_node *node, |
| 169 | struct pci_dev *dev); |
| 170 | |
| 171 | extern void of_scan_bus(struct device_node *node, struct pci_bus *bus); |
| 172 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | extern int pci_read_irq_line(struct pci_dev *dev); |
| 174 | |
| 175 | extern void pcibios_add_platform_entries(struct pci_dev *dev); |
| 176 | |
| 177 | struct file; |
| 178 | extern pgprot_t pci_phys_mem_access_prot(struct file *file, |
Roland Dreier | 8b15047 | 2005-10-28 17:46:18 -0700 | [diff] [blame] | 179 | unsigned long pfn, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | unsigned long size, |
| 181 | pgprot_t prot); |
| 182 | |
Michael Ellerman | 2311b1f | 2005-05-13 17:44:10 +1000 | [diff] [blame] | 183 | #ifdef CONFIG_PPC_MULTIPLATFORM |
| 184 | #define HAVE_ARCH_PCI_RESOURCE_TO_USER |
| 185 | extern void pci_resource_to_user(const struct pci_dev *dev, int bar, |
| 186 | const struct resource *rsrc, |
| 187 | u64 *start, u64 *end); |
| 188 | #endif /* CONFIG_PPC_MULTIPLATFORM */ |
| 189 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | |
| 191 | #endif /* __KERNEL__ */ |
| 192 | |
| 193 | #endif /* __PPC64_PCI_H */ |