Commit | Line | Data |
---|---|---|
9a8fd558 CZ |
1 | /* |
2 | * linux/include/asm-xtensa/pci.h | |
3 | * | |
4 | * This file is subject to the terms and conditions of the GNU General Public | |
5 | * License. See the file "COPYING" in the main directory of this archive | |
6 | * for more details. | |
7 | * | |
8 | * Copyright (C) 2001 - 2005 Tensilica Inc. | |
9 | */ | |
10 | ||
11 | #ifndef _XTENSA_PCI_H | |
12 | #define _XTENSA_PCI_H | |
13 | ||
14 | #ifdef __KERNEL__ | |
15 | ||
16 | /* Can be used to override the logic in pci_scan_bus for skipping | |
17 | * already-configured bus numbers - to be used for buggy BIOSes | |
18 | * or architectures with incomplete PCI setup by the loader | |
19 | */ | |
20 | ||
21 | #define pcibios_assign_all_busses() 0 | |
22 | ||
23 | extern struct pci_controller* pcibios_alloc_controller(void); | |
24 | ||
d99cf715 | 25 | static inline void pcibios_set_master(struct pci_dev *dev) |
9a8fd558 CZ |
26 | { |
27 | /* No special bus mastering setup handling */ | |
28 | } | |
29 | ||
d99cf715 | 30 | static inline void pcibios_penalize_isa_irq(int irq) |
9a8fd558 CZ |
31 | { |
32 | /* We don't do dynamic PCI IRQ allocation */ | |
33 | } | |
34 | ||
35 | /* Assume some values. (We should revise them, if necessary) */ | |
36 | ||
37 | #define PCIBIOS_MIN_IO 0x2000 | |
38 | #define PCIBIOS_MIN_MEM 0x10000000 | |
39 | ||
40 | /* Dynamic DMA mapping stuff. | |
41 | * Xtensa has everything mapped statically like x86. | |
42 | */ | |
43 | ||
44 | #include <linux/types.h> | |
45 | #include <linux/slab.h> | |
46 | #include <asm/scatterlist.h> | |
47 | #include <linux/string.h> | |
48 | #include <asm/io.h> | |
49 | ||
50 | struct pci_dev; | |
51 | ||
52 | /* The PCI address space does equal the physical memory address space. | |
53 | * The networking and block device layers use this boolean for bounce buffer | |
54 | * decisions. | |
55 | */ | |
56 | ||
57 | #define PCI_DMA_BUS_IS_PHYS (1) | |
58 | ||
59 | /* pci_unmap_{page,single} is a no-op, so */ | |
60 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) | |
61 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) | |
62 | #define pci_unmap_addr(PTR, ADDR_NAME) (0) | |
63 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) | |
64 | #define pci_ubnmap_len(PTR, LEN_NAME) (0) | |
65 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) | |
66 | ||
67 | /* We cannot access memory above 4GB */ | |
68 | #define pci_dac_dma_supported(pci_dev, mask) (0) | |
69 | ||
70 | /* Map a range of PCI memory or I/O space for a device into user space */ | |
71 | int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, | |
72 | enum pci_mmap_state mmap_state, int write_combine); | |
73 | ||
74 | /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ | |
75 | #define HAVE_PCI_MMAP 1 | |
76 | ||
77 | static inline void pcibios_add_platform_entries(struct pci_dev *dev) | |
78 | { | |
79 | } | |
80 | ||
81 | #endif /* __KERNEL__ */ | |
82 | ||
83 | /* Implement the pci_ DMA API in terms of the generic device dma_ one */ | |
84 | #include <asm-generic/pci-dma-compat.h> | |
85 | ||
86 | /* Generic PCI */ | |
87 | #include <asm-generic/pci.h> | |
88 | ||
89 | #endif /* _XTENSA_PCI_H */ |