| /* |
| * 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); |
| |
| extern inline void pcibios_set_master(struct pci_dev *dev) |
| { |
| /* No special bus mastering setup handling */ |
| } |
| |
| extern 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) |
| |
| /* We cannot access memory above 4GB */ |
| #define pci_dac_dma_supported(pci_dev, mask) (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 |
| |
| static inline void pcibios_add_platform_entries(struct pci_dev *dev) |
| { |
| } |
| |
| #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 */ |