1 #ifndef __ASM_POWERPC_PCI_H
2 #define __ASM_POWERPC_PCI_H
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
12 #include <linux/types.h>
13 #include <linux/slab.h>
14 #include <linux/string.h>
15 #include <linux/dma-mapping.h>
16 #include <linux/scatterlist.h>
18 #include <asm/machdep.h>
21 #include <asm/pci-bridge.h>
23 /* Return values for pci_controller_ops.probe_mode function */
24 #define PCI_PROBE_NONE -1 /* Don't look at this bus at all */
25 #define PCI_PROBE_NORMAL 0 /* Do normal PCI probing */
26 #define PCI_PROBE_DEVTREE 1 /* Instantiate from device tree */
28 #define PCIBIOS_MIN_IO 0x1000
29 #define PCIBIOS_MIN_MEM 0x10000000
31 /* Values for the `which' argument to sys_pciconfig_iobase syscall. */
32 #define IOBASE_BRIDGE_NUMBER 0
33 #define IOBASE_MEMORY 1
35 #define IOBASE_ISA_IO 3
36 #define IOBASE_ISA_MEM 4
39 * Set this to 1 if you want the kernel to re-assign all PCI
40 * bus numbers (don't do that on ppc64 yet !)
42 #define pcibios_assign_all_busses() \
43 (pci_has_flag(PCI_REASSIGN_ALL_BUS))
45 #define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
46 static inline int pci_get_legacy_ide_irq(struct pci_dev
*dev
, int channel
)
48 if (ppc_md
.pci_get_legacy_ide_irq
)
49 return ppc_md
.pci_get_legacy_ide_irq(dev
, channel
);
50 return channel
? 15 : 14;
54 extern void set_pci_dma_ops(const struct dma_map_ops
*dma_ops
);
55 #else /* CONFIG_PCI */
56 #define set_pci_dma_ops(d)
62 * We want to avoid touching the cacheline size or MWI bit.
63 * pSeries firmware sets the cacheline size (which is not the cpu cacheline
64 * size in all cases) and hardware treats MWI the same as memory write.
66 #define PCI_DISABLE_MWI
68 #endif /* CONFIG_PPC64 */
70 extern int pci_domain_nr(struct pci_bus
*bus
);
72 /* Decide whether to display the domain number in /proc */
73 extern int pci_proc_domain(struct pci_bus
*bus
);
75 struct vm_area_struct
;
77 /* Tell PCI code what kind of PCI resource mappings we support */
78 #define HAVE_PCI_MMAP 1
79 #define ARCH_GENERIC_PCI_MMAP_RESOURCE 1
80 #define arch_can_pci_mmap_io() 1
81 #define arch_can_pci_mmap_wc() 1
83 extern int pci_legacy_read(struct pci_bus
*bus
, loff_t port
, u32
*val
,
85 extern int pci_legacy_write(struct pci_bus
*bus
, loff_t port
, u32 val
,
87 extern int pci_mmap_legacy_page_range(struct pci_bus
*bus
,
88 struct vm_area_struct
*vma
,
89 enum pci_mmap_state mmap_state
);
91 #define HAVE_PCI_LEGACY 1
93 extern void pcibios_claim_one_bus(struct pci_bus
*b
);
95 extern void pcibios_finish_adding_to_bus(struct pci_bus
*bus
);
97 extern void pcibios_resource_survey(void);
99 extern struct pci_controller
*init_phb_dynamic(struct device_node
*dn
);
100 extern int remove_phb_dynamic(struct pci_controller
*phb
);
102 extern struct pci_dev
*of_create_pci_dev(struct device_node
*node
,
103 struct pci_bus
*bus
, int devfn
);
105 extern unsigned int pci_parse_of_flags(u32 addr0
, int bridge
);
107 extern void of_scan_pci_bridge(struct pci_dev
*dev
);
109 extern void of_scan_bus(struct device_node
*node
, struct pci_bus
*bus
);
110 extern void of_rescan_bus(struct device_node
*node
, struct pci_bus
*bus
);
113 extern pgprot_t
pci_phys_mem_access_prot(struct file
*file
,
118 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
120 extern resource_size_t
pcibios_io_space_offset(struct pci_controller
*hose
);
121 extern void pcibios_setup_bus_devices(struct pci_bus
*bus
);
122 extern void pcibios_setup_bus_self(struct pci_bus
*bus
);
123 extern void pcibios_setup_phb_io_space(struct pci_controller
*hose
);
124 extern void pcibios_scan_phb(struct pci_controller
*hose
);
126 #endif /* __KERNEL__ */
128 extern struct pci_dev
*pnv_pci_get_gpu_dev(struct pci_dev
*npdev
);
129 extern struct pci_dev
*pnv_pci_get_npu_dev(struct pci_dev
*gpdev
, int index
);
130 extern int pnv_npu2_init(struct pci_controller
*hose
);
131 extern int pnv_npu2_map_lpar_dev(struct pci_dev
*gpdev
, unsigned int lparid
,
133 extern int pnv_npu2_unmap_lpar_dev(struct pci_dev
*gpdev
);
135 #endif /* __ASM_POWERPC_PCI_H */