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 25 /* Assume some values. (We should revise them, if necessary) */ 26 27 #define PCIBIOS_MIN_IO 0x2000 28 #define PCIBIOS_MIN_MEM 0x10000000 29 30 /* Dynamic DMA mapping stuff. 31 * Xtensa has everything mapped statically like x86. 32 */ 33 34 #include <linux/types.h> 35 #include <linux/slab.h> 36 #include <linux/scatterlist.h> 37 #include <linux/string.h> 38 #include <asm/io.h> 39 40 struct pci_dev; 41 42 /* The PCI address space does equal the physical memory address space. 43 * The networking and block device layers use this boolean for bounce buffer 44 * decisions. 45 */ 46 47 #define PCI_DMA_BUS_IS_PHYS (1) 48 49 /* Map a range of PCI memory or I/O space for a device into user space */ 50 int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, 51 enum pci_mmap_state mmap_state, int write_combine); 52 53 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ 54 #define HAVE_PCI_MMAP 1 55 56 #endif /* __KERNEL__ */ 57 58 /* Implement the pci_ DMA API in terms of the generic device dma_ one */ 59 #include <asm-generic/pci-dma-compat.h> 60 61 /* Generic PCI */ 62 #include <asm-generic/pci.h> 63 64 #endif /* _XTENSA_PCI_H */ 65