5 #include <linux/types.h>
6 #include <linux/slab.h>
7 #include <linux/string.h>
9 #include <asm/scatterlist.h>
11 #include <asm/pci-bridge.h>
12 #include <asm-generic/pci-dma-compat.h>
16 /* Values for the `which' argument to sys_pciconfig_iobase syscall. */
17 #define IOBASE_BRIDGE_NUMBER 0
18 #define IOBASE_MEMORY 1
20 #define IOBASE_ISA_IO 3
21 #define IOBASE_ISA_MEM 4
24 * Set this to 1 if you want the kernel to re-assign all PCI
27 extern int pci_assign_all_buses;
29 #define pcibios_assign_all_busses() (pci_assign_all_buses)
30 #define pcibios_scan_all_fns(a, b) 0
32 #define PCIBIOS_MIN_IO 0x1000
33 #define PCIBIOS_MIN_MEM 0x10000000
35 extern inline void pcibios_set_master(struct pci_dev *dev)
37 /* No special bus mastering setup handling */
40 extern inline void pcibios_penalize_isa_irq(int irq, int active)
42 /* We don't do dynamic PCI IRQ allocation */
45 extern unsigned long pci_resource_to_bus(struct pci_dev *pdev, struct resource *res);
48 * The PCI bus bridge can translate addresses issued by the processor(s)
49 * into a different address on the PCI bus. On 32-bit cpus, we assume
50 * this mapping is 1-1, but on 64-bit systems it often isn't.
52 * Obsolete ! Drivers should now use pci_resource_to_bus
54 extern unsigned long phys_to_bus(unsigned long pa);
55 extern unsigned long pci_phys_to_bus(unsigned long pa, int busnr);
56 extern unsigned long pci_bus_to_phys(unsigned int ba, int busnr);
58 /* The PCI address space does equal the physical memory
59 * address space. The networking and block device layers use
60 * this boolean for bounce buffer decisions.
62 #define PCI_DMA_BUS_IS_PHYS (1)
64 #ifdef CONFIG_NOT_COHERENT_CACHE
66 * pci_unmap_{page,single} are NOPs but pci_dma_sync_single_for_cpu()
67 * and so on are not, so...
70 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
72 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
74 #define pci_unmap_addr(PTR, ADDR_NAME) \
76 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
77 (((PTR)->ADDR_NAME) = (VAL))
78 #define pci_unmap_len(PTR, LEN_NAME) \
80 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
81 (((PTR)->LEN_NAME) = (VAL))
85 /* pci_unmap_{page,single} is a nop so... */
86 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
87 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
88 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
89 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
90 #define pci_unmap_len(PTR, LEN_NAME) (0)
91 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
93 #endif /* CONFIG_NOT_COHERENT_CACHE */
96 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
97 enum pci_dma_burst_strategy *strat,
98 unsigned long *strategy_parameter)
100 *strat = PCI_DMA_BURST_INFINITY;
101 *strategy_parameter = ~0UL;
105 /* Return the index of the PCI controller for device PDEV. */
106 #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
108 /* Set the name of the bus as it appears in /proc/bus/pci */
109 static inline int pci_proc_domain(struct pci_bus *bus)
114 /* Map a range of PCI memory or I/O space for a device into user space */
115 int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
116 enum pci_mmap_state mmap_state, int write_combine);
118 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
119 #define HAVE_PCI_MMAP 1
122 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
123 struct resource *res);
126 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
127 struct pci_bus_region *region);
129 static inline struct resource *
130 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
132 struct resource *root = NULL;
134 if (res->flags & IORESOURCE_IO)
135 root = &ioport_resource;
136 if (res->flags & IORESOURCE_MEM)
137 root = &iomem_resource;
143 extern pgprot_t pci_phys_mem_access_prot(struct file *file,
148 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
149 extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
150 const struct resource *rsrc,
151 resource_size_t *start, resource_size_t *end);
154 #endif /* __KERNEL__ */
156 #endif /* __PPC_PCI_H */