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 static inline void pcibios_penalize_isa_irq(int irq) 26 { 27 /* We don't do dynamic PCI IRQ allocation */ 28 } 29 30 /* Assume some values. (We should revise them, if necessary) */ 31 32 #define PCIBIOS_MIN_IO 0x2000 33 #define PCIBIOS_MIN_MEM 0x10000000 34 35 /* Dynamic DMA mapping stuff. 36 * Xtensa has everything mapped statically like x86. 37 */ 38 39 #include <linux/types.h> 40 #include <linux/slab.h> 41 #include <asm/scatterlist.h> 42 #include <linux/string.h> 43 #include <asm/io.h> 44 45 struct pci_dev; 46 47 /* The PCI address space does equal the physical memory address space. 48 * The networking and block device layers use this boolean for bounce buffer 49 * decisions. 50 */ 51 52 #define PCI_DMA_BUS_IS_PHYS (1) 53 54 /* Map a range of PCI memory or I/O space for a device into user space */ 55 int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, 56 enum pci_mmap_state mmap_state, int write_combine); 57 58 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ 59 #define HAVE_PCI_MMAP 1 60 61 #endif /* __KERNEL__ */ 62 63 /* Implement the pci_ DMA API in terms of the generic device dma_ one */ 64 #include <asm-generic/pci-dma-compat.h> 65 66 /* Generic PCI */ 67 #include <asm-generic/pci.h> 68 69 #endif /* _XTENSA_PCI_H */ 70