| /* |
| * 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. |
| */ |
| #ifndef _ASM_PCI_H |
| #define _ASM_PCI_H |
| |
| #include <linux/config.h> |
| #include <linux/mm.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 */ |
| |
| extern unsigned int pcibios_assign_all_busses(void); |
| |
| #define pcibios_scan_all_fns(a, b) 0 |
| |
| extern unsigned long PCIBIOS_MIN_IO; |
| extern unsigned long PCIBIOS_MIN_MEM; |
| |
| #define PCIBIOS_MIN_CARDBUS_IO 0x4000 |
| |
| extern void pcibios_set_master(struct pci_dev *dev); |
| |
| static inline void pcibios_penalize_isa_irq(int irq) |
| { |
| /* We don't do dynamic PCI IRQ allocation */ |
| } |
| |
| /* |
| * Dynamic DMA mapping stuff. |
| * MIPS has everything mapped statically. |
| */ |
| |
| #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. This is set if any hose does not have an IOMMU. |
| */ |
| extern unsigned int PCI_DMA_BUS_IS_PHYS; |
| |
| #ifdef CONFIG_MAPPED_DMA_IO |
| |
| /* pci_unmap_{single,page} is not a nop, thus... */ |
| #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME; |
| #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME; |
| #define pci_unmap_addr(PTR, ADDR_NAME) ((PTR)->ADDR_NAME) |
| #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL)) |
| #define pci_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME) |
| #define pci_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL)) |
| |
| #else /* CONFIG_MAPPED_DMA_IO */ |
| |
| /* pci_unmap_{page,single} is a nop 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_unmap_len(PTR, LEN_NAME) (0) |
| #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) |
| |
| #endif /* CONFIG_MAPPED_DMA_IO */ |
| |
| /* This is always fine. */ |
| #define pci_dac_dma_supported(pci_dev, mask) (1) |
| |
| extern dma64_addr_t pci_dac_page_to_dma(struct pci_dev *pdev, |
| struct page *page, unsigned long offset, int direction); |
| extern struct page *pci_dac_dma_to_page(struct pci_dev *pdev, |
| dma64_addr_t dma_addr); |
| extern unsigned long pci_dac_dma_to_offset(struct pci_dev *pdev, |
| dma64_addr_t dma_addr); |
| extern void pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, |
| dma64_addr_t dma_addr, size_t len, int direction); |
| extern void pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, |
| dma64_addr_t dma_addr, size_t len, int direction); |
| |
| extern void pcibios_resource_to_bus(struct pci_dev *dev, |
| struct pci_bus_region *region, struct resource *res); |
| |
| #endif /* __KERNEL__ */ |
| |
| /* implement the pci_ DMA API in terms of the generic device dma_ one */ |
| #include <asm-generic/pci-dma-compat.h> |
| |
| static inline void pcibios_add_platform_entries(struct pci_dev *dev) |
| { |
| } |
| |
| #endif /* _ASM_PCI_H */ |