| /* | |
| * linux/include/asm-xtensa/pci.h | |
| * | |
| * This file is subject to the terms and conditions of the GNU General Public | |
| * License. See the file "COPYING" in the main directory of this archive | |
| * for more details. | |
| * | |
| * Copyright (C) 2001 - 2005 Tensilica Inc. | |
| */ | |
| #ifndef _XTENSA_PCI_H | |
| #define _XTENSA_PCI_H | |
| #ifdef __KERNEL__ | |
| /* Can be used to override the logic in pci_scan_bus for skipping | |
| * already-configured bus numbers - to be used for buggy BIOSes | |
| * or architectures with incomplete PCI setup by the loader | |
| */ | |
| #define pcibios_assign_all_busses() 0 | |
| extern struct pci_controller* pcibios_alloc_controller(void); | |
| static inline void pcibios_set_master(struct pci_dev *dev) | |
| { | |
| /* No special bus mastering setup handling */ | |
| } | |
| static inline void pcibios_penalize_isa_irq(int irq) | |
| { | |
| /* We don't do dynamic PCI IRQ allocation */ | |
| } | |
| /* Assume some values. (We should revise them, if necessary) */ | |
| #define PCIBIOS_MIN_IO 0x2000 | |
| #define PCIBIOS_MIN_MEM 0x10000000 | |
| /* Dynamic DMA mapping stuff. | |
| * Xtensa has everything mapped statically like x86. | |
| */ | |
| #include <linux/types.h> | |
| #include <linux/slab.h> | |
| #include <asm/scatterlist.h> | |
| #include <linux/string.h> | |
| #include <asm/io.h> | |
| struct pci_dev; | |
| /* The PCI address space does equal the physical memory address space. | |
| * The networking and block device layers use this boolean for bounce buffer | |
| * decisions. | |
| */ | |
| #define PCI_DMA_BUS_IS_PHYS (1) | |
| /* pci_unmap_{page,single} is a no-op, so */ | |
| #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) | |
| #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) | |
| #define pci_unmap_addr(PTR, ADDR_NAME) (0) | |
| #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) | |
| #define pci_ubnmap_len(PTR, LEN_NAME) (0) | |
| #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) | |
| /* Map a range of PCI memory or I/O space for a device into user space */ | |
| int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, | |
| enum pci_mmap_state mmap_state, int write_combine); | |
| /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ | |
| #define HAVE_PCI_MMAP 1 | |
| #endif /* __KERNEL__ */ | |
| /* Implement the pci_ DMA API in terms of the generic device dma_ one */ | |
| #include <asm-generic/pci-dma-compat.h> | |
| /* Generic PCI */ | |
| #include <asm-generic/pci.h> | |
| #endif /* _XTENSA_PCI_H */ |