/* * 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 */