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