fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-sh / pci.h
blob2757ce096ff73878f717ca2373daa8bc7938006d
1 #ifndef __ASM_SH_PCI_H
2 #define __ASM_SH_PCI_H
4 #ifdef __KERNEL__
6 #include <linux/dma-mapping.h>
8 /* Can be used to override the logic in pci_scan_bus for skipping
9 already-configured bus numbers - to be used for buggy BIOSes
10 or architectures with incomplete PCI setup by the loader */
12 #define pcibios_assign_all_busses() 1
13 #define pcibios_scan_all_fns(a, b) 0
16 * A board can define one or more PCI channels that represent built-in (or
17 * external) PCI controllers.
19 struct pci_channel {
20 struct pci_ops *pci_ops;
21 struct resource *io_resource;
22 struct resource *mem_resource;
23 int first_devfn;
24 int last_devfn;
28 * Each board initializes this array and terminates it with a NULL entry.
30 extern struct pci_channel board_pci_channels[];
32 #define PCIBIOS_MIN_IO board_pci_channels->io_resource->start
33 #define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start
36 * I/O routine helpers
38 #if defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785)
39 #define PCI_IO_AREA 0xFE400000
40 #define PCI_IO_SIZE 0x00400000
41 #else
42 #define PCI_IO_AREA 0xFE240000
43 #define PCI_IO_SIZE 0X00040000
44 #endif
46 #define PCI_MEM_SIZE 0x01000000
48 #define SH4_PCIIOBR_MASK 0xFFFC0000
49 #define pci_ioaddr(addr) (PCI_IO_AREA + (addr & ~SH4_PCIIOBR_MASK))
51 #if defined(CONFIG_PCI)
52 #define is_pci_ioaddr(port) \
53 (((port) >= PCIBIOS_MIN_IO) && \
54 ((port) < (PCIBIOS_MIN_IO + PCI_IO_SIZE)))
55 #define is_pci_memaddr(port) \
56 (((port) >= PCIBIOS_MIN_MEM) && \
57 ((port) < (PCIBIOS_MIN_MEM + PCI_MEM_SIZE)))
58 #else
59 #define is_pci_ioaddr(port) (0)
60 #define is_pci_memaddr(port) (0)
61 #endif
63 struct pci_dev;
65 extern void pcibios_set_master(struct pci_dev *dev);
67 static inline void pcibios_penalize_isa_irq(int irq, int active)
69 /* We don't do dynamic PCI IRQ allocation */
72 /* Dynamic DMA mapping stuff.
73 * SuperH has everything mapped statically like x86.
76 /* The PCI address space does equal the physical memory
77 * address space. The networking and block device layers use
78 * this boolean for bounce buffer decisions.
80 #define PCI_DMA_BUS_IS_PHYS (1)
82 #include <linux/types.h>
83 #include <linux/slab.h>
84 #include <asm/scatterlist.h>
85 #include <linux/string.h>
86 #include <asm/io.h>
88 /* pci_unmap_{single,page} being a nop depends upon the
89 * configuration.
91 #ifdef CONFIG_SH_PCIDMA_NONCOHERENT
92 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
93 dma_addr_t ADDR_NAME;
94 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
95 __u32 LEN_NAME;
96 #define pci_unmap_addr(PTR, ADDR_NAME) \
97 ((PTR)->ADDR_NAME)
98 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
99 (((PTR)->ADDR_NAME) = (VAL))
100 #define pci_unmap_len(PTR, LEN_NAME) \
101 ((PTR)->LEN_NAME)
102 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
103 (((PTR)->LEN_NAME) = (VAL))
104 #else
105 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
106 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
107 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
108 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
109 #define pci_unmap_len(PTR, LEN_NAME) (0)
110 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
111 #endif
113 #ifdef CONFIG_PCI
114 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
115 enum pci_dma_burst_strategy *strat,
116 unsigned long *strategy_parameter)
118 *strat = PCI_DMA_BURST_INFINITY;
119 *strategy_parameter = ~0UL;
121 #endif
123 /* Board-specific fixup routines. */
124 void pcibios_fixup(void);
125 int pcibios_init_platform(void);
126 int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);
128 #ifdef CONFIG_PCI_AUTO
129 int pciauto_assign_resources(int busno, struct pci_channel *hose);
130 #endif
132 #endif /* __KERNEL__ */
134 /* generic pci stuff */
135 #include <asm-generic/pci.h>
137 /* generic DMA-mapping stuff */
138 #include <asm-generic/pci-dma-compat.h>
140 #endif /* __ASM_SH_PCI_H */