Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASM_SH_PCI_H |
| 2 | #define __ASM_SH_PCI_H |
| 3 | |
| 4 | #ifdef __KERNEL__ |
| 5 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | /* Can be used to override the logic in pci_scan_bus for skipping |
| 7 | already-configured bus numbers - to be used for buggy BIOSes |
| 8 | or architectures with incomplete PCI setup by the loader */ |
| 9 | |
| 10 | #define pcibios_assign_all_busses() 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | |
| 12 | /* |
| 13 | * A board can define one or more PCI channels that represent built-in (or |
| 14 | * external) PCI controllers. |
| 15 | */ |
| 16 | struct pci_channel { |
Paul Mundt | e79066a | 2009-04-20 18:29:22 +0900 | [diff] [blame] | 17 | struct pci_channel *next; |
Paul Mundt | 320e68d | 2010-01-29 22:38:13 +0900 | [diff] [blame] | 18 | struct pci_bus *bus; |
Paul Mundt | 0bb34a6 | 2009-04-20 16:38:00 +0900 | [diff] [blame] | 19 | |
Paul Mundt | e79066a | 2009-04-20 18:29:22 +0900 | [diff] [blame] | 20 | struct pci_ops *pci_ops; |
Paul Mundt | b6c58b1 | 2010-02-01 20:01:50 +0900 | [diff] [blame] | 21 | |
| 22 | struct resource *resources; |
| 23 | unsigned int nr_resources; |
Paul Mundt | e79066a | 2009-04-20 18:29:22 +0900 | [diff] [blame] | 24 | |
Paul Mundt | 09cfeb1 | 2009-04-20 18:42:00 +0900 | [diff] [blame] | 25 | unsigned long io_offset; |
| 26 | unsigned long mem_offset; |
| 27 | |
Paul Mundt | e79066a | 2009-04-20 18:29:22 +0900 | [diff] [blame] | 28 | unsigned long reg_base; |
Paul Mundt | e79066a | 2009-04-20 18:29:22 +0900 | [diff] [blame] | 29 | unsigned long io_map_base; |
Paul Mundt | 320e68d | 2010-01-29 22:38:13 +0900 | [diff] [blame] | 30 | |
| 31 | unsigned int index; |
| 32 | unsigned int need_domain_info; |
Paul Mundt | ef407be | 2010-02-01 16:39:46 +0900 | [diff] [blame] | 33 | |
| 34 | /* Optional error handling */ |
| 35 | struct timer_list err_timer, serr_timer; |
| 36 | unsigned int err_irq, serr_irq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | }; |
| 38 | |
Paul Mundt | ef407be | 2010-02-01 16:39:46 +0900 | [diff] [blame] | 39 | /* arch/sh/drivers/pci/pci.c */ |
Paul Mundt | bcf3935 | 2010-02-01 13:11:25 +0900 | [diff] [blame] | 40 | extern int register_pci_controller(struct pci_channel *hose); |
Paul Mundt | ef407be | 2010-02-01 16:39:46 +0900 | [diff] [blame] | 41 | extern void pcibios_report_status(unsigned int status_mask, int warn); |
| 42 | |
| 43 | /* arch/sh/drivers/pci/common.c */ |
| 44 | extern void pcibios_enable_timers(struct pci_channel *hose); |
| 45 | extern unsigned int pcibios_handle_status_errors(unsigned long addr, |
| 46 | unsigned int status, struct pci_channel *hose); |
Paul Mundt | 85b59f5 | 2010-02-01 13:01:42 +0900 | [diff] [blame] | 47 | extern int pci_is_66mhz_capable(struct pci_channel *hose, |
| 48 | int top_bus, int current_bus); |
Paul Mundt | e79066a | 2009-04-20 18:29:22 +0900 | [diff] [blame] | 49 | |
Paul Mundt | a3c0e0d | 2009-04-20 16:14:29 +0900 | [diff] [blame] | 50 | extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
| 52 | struct pci_dev; |
| 53 | |
Paul Mundt | 9833385 | 2009-04-20 15:51:45 +0900 | [diff] [blame] | 54 | #define HAVE_PCI_MMAP |
| 55 | extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, |
| 56 | enum pci_mmap_state mmap_state, int write_combine); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | extern void pcibios_set_master(struct pci_dev *dev); |
| 58 | |
David Shaohua Li | c9c3e45 | 2005-04-01 00:07:31 -0500 | [diff] [blame] | 59 | static inline void pcibios_penalize_isa_irq(int irq, int active) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | { |
| 61 | /* We don't do dynamic PCI IRQ allocation */ |
| 62 | } |
| 63 | |
| 64 | /* Dynamic DMA mapping stuff. |
| 65 | * SuperH has everything mapped statically like x86. |
| 66 | */ |
| 67 | |
| 68 | /* The PCI address space does equal the physical memory |
| 69 | * address space. The networking and block device layers use |
| 70 | * this boolean for bounce buffer decisions. |
| 71 | */ |
Paul Mundt | 73c926b | 2009-10-20 12:55:56 +0900 | [diff] [blame] | 72 | #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | |
| 74 | /* pci_unmap_{single,page} being a nop depends upon the |
| 75 | * configuration. |
| 76 | */ |
Paul Mundt | 01be5d6 | 2009-10-27 10:35:02 +0900 | [diff] [blame] | 77 | #ifdef CONFIG_DMA_NONCOHERENT |
| 78 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME; |
| 79 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME; |
| 80 | #define pci_unmap_addr(PTR, ADDR_NAME) ((PTR)->ADDR_NAME) |
| 81 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL)) |
| 82 | #define pci_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME) |
| 83 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | #else |
| 85 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) |
| 86 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) |
| 87 | #define pci_unmap_addr(PTR, ADDR_NAME) (0) |
| 88 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) |
| 89 | #define pci_unmap_len(PTR, LEN_NAME) (0) |
| 90 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) |
| 91 | #endif |
| 92 | |
Paul Mundt | 3e98f9f | 2009-04-24 15:39:39 +0900 | [diff] [blame] | 93 | #ifdef CONFIG_PCI |
Paul Mundt | b7e2ac6 | 2009-05-26 23:13:13 +0900 | [diff] [blame] | 94 | /* |
| 95 | * None of the SH PCI controllers support MWI, it is always treated as a |
| 96 | * direct memory write. |
| 97 | */ |
| 98 | #define PCI_DISABLE_MWI |
| 99 | |
David S. Miller | e24c2d9 | 2005-06-02 12:55:50 -0700 | [diff] [blame] | 100 | static inline void pci_dma_burst_advice(struct pci_dev *pdev, |
| 101 | enum pci_dma_burst_strategy *strat, |
| 102 | unsigned long *strategy_parameter) |
| 103 | { |
Paul Mundt | b7e2ac6 | 2009-05-26 23:13:13 +0900 | [diff] [blame] | 104 | unsigned long cacheline_size; |
| 105 | u8 byte; |
| 106 | |
| 107 | pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); |
| 108 | |
| 109 | if (byte == 0) |
| 110 | cacheline_size = L1_CACHE_BYTES; |
| 111 | else |
| 112 | cacheline_size = byte << 2; |
| 113 | |
| 114 | *strat = PCI_DMA_BURST_MULTIPLE; |
| 115 | *strategy_parameter = cacheline_size; |
David S. Miller | e24c2d9 | 2005-06-02 12:55:50 -0700 | [diff] [blame] | 116 | } |
Paul Mundt | 3e98f9f | 2009-04-24 15:39:39 +0900 | [diff] [blame] | 117 | #endif |
Magnus Damm | ef339f2 | 2008-02-19 21:35:22 +0900 | [diff] [blame] | 118 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | /* Board-specific fixup routines. */ |
Paul Mundt | 959f85f | 2006-09-27 16:43:28 +0900 | [diff] [blame] | 120 | int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | |
Paul Mundt | 9ade121 | 2009-04-20 15:38:25 +0900 | [diff] [blame] | 122 | extern void pcibios_resource_to_bus(struct pci_dev *dev, |
| 123 | struct pci_bus_region *region, struct resource *res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | |
Paul Mundt | 9ade121 | 2009-04-20 15:38:25 +0900 | [diff] [blame] | 125 | extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, |
| 126 | struct pci_bus_region *region); |
| 127 | |
Paul Mundt | 320e68d | 2010-01-29 22:38:13 +0900 | [diff] [blame] | 128 | #define pci_domain_nr(bus) ((struct pci_channel *)(bus)->sysdata)->index |
| 129 | |
| 130 | static inline int pci_proc_domain(struct pci_bus *bus) |
| 131 | { |
| 132 | struct pci_channel *hose = bus->sysdata; |
| 133 | return hose->need_domain_info; |
| 134 | } |
| 135 | |
Paul Mundt | 9ade121 | 2009-04-20 15:38:25 +0900 | [diff] [blame] | 136 | /* Chances are this interrupt is wired PC-style ... */ |
| 137 | static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) |
| 138 | { |
| 139 | return channel ? 15 : 14; |
| 140 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
| 142 | /* generic DMA-mapping stuff */ |
| 143 | #include <asm-generic/pci-dma-compat.h> |
| 144 | |
Paul Mundt | 9ade121 | 2009-04-20 15:38:25 +0900 | [diff] [blame] | 145 | #endif /* __KERNEL__ */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | #endif /* __ASM_SH_PCI_H */ |
| 147 | |