projects / linux-block.git / blame
| 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 | ||
| 9a8fd558 CZ |
67 | /* Map a range of PCI memory or I/O space for a device into user space */ |
| 68 | int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, | |
| 69 | enum pci_mmap_state mmap_state, int write_combine); | |
| 70 | ||
| 71 | /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ | |
| 72 | #define HAVE_PCI_MMAP 1 | |
| 73 | ||
| 9a8fd558 CZ |
74 | #endif /* __KERNEL__ */ |
| 75 | ||
| 76 | /* Implement the pci_ DMA API in terms of the generic device dma_ one */ | |
| 77 | #include <asm-generic/pci-dma-compat.h> | |
| 78 | ||
| 79 | /* Generic PCI */ | |
| 80 | #include <asm-generic/pci.h> | |
| 81 | ||
| 82 | #endif /* _XTENSA_PCI_H */ |