Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _ASM_IA64_PCI_H |
| 2 | #define _ASM_IA64_PCI_H |
| 3 | |
| 4 | #include <linux/mm.h> |
| 5 | #include <linux/slab.h> |
| 6 | #include <linux/spinlock.h> |
| 7 | #include <linux/string.h> |
| 8 | #include <linux/types.h> |
| 9 | |
| 10 | #include <asm/io.h> |
| 11 | #include <asm/scatterlist.h> |
Zhang, Yanmin | 8621235 | 2007-02-12 14:12:01 +0800 | [diff] [blame] | 12 | #include <asm/hw_irq.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | |
| 14 | /* |
| 15 | * Can be used to override the logic in pci_scan_bus for skipping already-configured bus |
| 16 | * numbers - to be used for buggy BIOSes or architectures with incomplete PCI setup by the |
| 17 | * loader. |
| 18 | */ |
| 19 | #define pcibios_assign_all_busses() 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | |
| 21 | #define PCIBIOS_MIN_IO 0x1000 |
| 22 | #define PCIBIOS_MIN_MEM 0x10000000 |
| 23 | |
| 24 | void pcibios_config_init(void); |
| 25 | |
| 26 | struct pci_dev; |
| 27 | |
| 28 | /* |
Matthew Wilcox | 3efe2d8 | 2006-10-10 08:01:19 -0600 | [diff] [blame] | 29 | * PCI_DMA_BUS_IS_PHYS should be set to 1 if there is _necessarily_ a direct |
| 30 | * correspondence between device bus addresses and CPU physical addresses. |
| 31 | * Platforms with a hardware I/O MMU _must_ turn this off to suppress the |
| 32 | * bounce buffer handling code in the block and network device layers. |
| 33 | * Platforms with separate bus address spaces _must_ turn this off and provide |
| 34 | * a device DMA mapping implementation that takes care of the necessary |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | * address translation. |
| 36 | * |
Matthew Wilcox | 3efe2d8 | 2006-10-10 08:01:19 -0600 | [diff] [blame] | 37 | * For now, the ia64 platforms which may have separate/multiple bus address |
| 38 | * spaces all have I/O MMUs which support the merging of physically |
| 39 | * discontiguous buffers, so we can use that as the sole factor to determine |
| 40 | * the setting of PCI_DMA_BUS_IS_PHYS. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | */ |
| 42 | extern unsigned long ia64_max_iommu_merge_mask; |
| 43 | #define PCI_DMA_BUS_IS_PHYS (ia64_max_iommu_merge_mask == ~0UL) |
| 44 | |
| 45 | static inline void |
| 46 | pcibios_set_master (struct pci_dev *dev) |
| 47 | { |
| 48 | /* No special bus mastering setup handling */ |
| 49 | } |
| 50 | |
| 51 | static inline void |
David Shaohua Li | c9c3e45 | 2005-04-01 00:07:31 -0500 | [diff] [blame] | 52 | pcibios_penalize_isa_irq (int irq, int active) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | { |
| 54 | /* We don't do dynamic PCI IRQ allocation */ |
| 55 | } |
| 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | #include <asm-generic/pci-dma-compat.h> |
| 58 | |
Andrew Morton | bb4a61b | 2005-06-06 23:07:46 -0700 | [diff] [blame] | 59 | #ifdef CONFIG_PCI |
David S. Miller | e24c2d9 | 2005-06-02 12:55:50 -0700 | [diff] [blame] | 60 | static inline void pci_dma_burst_advice(struct pci_dev *pdev, |
| 61 | enum pci_dma_burst_strategy *strat, |
| 62 | unsigned long *strategy_parameter) |
| 63 | { |
| 64 | unsigned long cacheline_size; |
| 65 | u8 byte; |
| 66 | |
| 67 | pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); |
| 68 | if (byte == 0) |
| 69 | cacheline_size = 1024; |
| 70 | else |
| 71 | cacheline_size = (int) byte * 4; |
| 72 | |
| 73 | *strat = PCI_DMA_BURST_MULTIPLE; |
| 74 | *strategy_parameter = cacheline_size; |
| 75 | } |
Andrew Morton | bb4a61b | 2005-06-06 23:07:46 -0700 | [diff] [blame] | 76 | #endif |
David S. Miller | e24c2d9 | 2005-06-02 12:55:50 -0700 | [diff] [blame] | 77 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | #define HAVE_PCI_MMAP |
| 79 | extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma, |
| 80 | enum pci_mmap_state mmap_state, int write_combine); |
| 81 | #define HAVE_PCI_LEGACY |
| 82 | extern int pci_mmap_legacy_page_range(struct pci_bus *bus, |
Benjamin Herrenschmidt | f19aeb1 | 2008-10-03 19:49:32 +1000 | [diff] [blame] | 83 | struct vm_area_struct *vma, |
| 84 | enum pci_mmap_state mmap_state); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | |
| 86 | #define pci_get_legacy_mem platform_pci_get_legacy_mem |
| 87 | #define pci_legacy_read platform_pci_legacy_read |
| 88 | #define pci_legacy_write platform_pci_legacy_write |
| 89 | |
| 90 | struct pci_window { |
| 91 | struct resource resource; |
| 92 | u64 offset; |
| 93 | }; |
| 94 | |
| 95 | struct pci_controller { |
| 96 | void *acpi_handle; |
| 97 | void *iommu; |
| 98 | int segment; |
Christoph Lameter | 514604c | 2005-07-07 16:59:00 -0700 | [diff] [blame] | 99 | int node; /* nearest node with memory or -1 for global allocation */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | |
| 101 | unsigned int windows; |
| 102 | struct pci_window *window; |
| 103 | |
| 104 | void *platform_data; |
| 105 | }; |
| 106 | |
| 107 | #define PCI_CONTROLLER(busdev) ((struct pci_controller *) busdev->sysdata) |
| 108 | #define pci_domain_nr(busdev) (PCI_CONTROLLER(busdev)->segment) |
| 109 | |
| 110 | extern struct pci_ops pci_root_ops; |
| 111 | |
| 112 | static inline int pci_proc_domain(struct pci_bus *bus) |
| 113 | { |
| 114 | return (pci_domain_nr(bus) != 0); |
| 115 | } |
| 116 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | extern void pcibios_resource_to_bus(struct pci_dev *dev, |
| 118 | struct pci_bus_region *region, struct resource *res); |
| 119 | |
| 120 | extern void pcibios_bus_to_resource(struct pci_dev *dev, |
| 121 | struct resource *res, struct pci_bus_region *region); |
| 122 | |
Alex Chiang | a7db504 | 2009-06-22 08:08:07 -0600 | [diff] [blame] | 123 | static inline struct resource * |
| 124 | pcibios_select_root(struct pci_dev *pdev, struct resource *res) |
| 125 | { |
| 126 | struct resource *root = NULL; |
| 127 | |
| 128 | if (res->flags & IORESOURCE_IO) |
| 129 | root = &ioport_resource; |
| 130 | if (res->flags & IORESOURCE_MEM) |
| 131 | root = &iomem_resource; |
| 132 | |
| 133 | return root; |
| 134 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | |
Bartlomiej Zolnierkiewicz | 677c0a7 | 2007-01-27 13:46:54 +0100 | [diff] [blame] | 136 | #define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ |
| 137 | static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) |
| 138 | { |
Zhang, Yanmin | 8621235 | 2007-02-12 14:12:01 +0800 | [diff] [blame] | 139 | return channel ? isa_irq_to_vector(15) : isa_irq_to_vector(14); |
Bartlomiej Zolnierkiewicz | 677c0a7 | 2007-01-27 13:46:54 +0100 | [diff] [blame] | 140 | } |
| 141 | |
Fenghua Yu | 62fdd76 | 2008-10-17 12:14:13 -0700 | [diff] [blame] | 142 | #ifdef CONFIG_DMAR |
| 143 | extern void pci_iommu_alloc(void); |
| 144 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | #endif /* _ASM_IA64_PCI_H */ |