1#ifndef __SPARC64_PCI_H 2#define __SPARC64_PCI_H 3 4#ifdef __KERNEL__ 5 6#include <linux/dma-mapping.h> 7 8/* Can be used to override the logic in pci_scan_bus for skipping 9 * already-configured bus numbers - to be used for buggy BIOSes 10 * or architectures with incomplete PCI setup by the loader. 11 */ 12#define pcibios_assign_all_busses() 0 13 14#define PCIBIOS_MIN_IO 0UL 15#define PCIBIOS_MIN_MEM 0UL 16 17#define PCI_IRQ_NONE 0xffffffff 18 19static inline void pcibios_set_master(struct pci_dev *dev) 20{ 21 /* No special bus mastering setup handling */ 22} 23 24static inline void pcibios_penalize_isa_irq(int irq, int active) 25{ 26 /* We don't do dynamic PCI IRQ allocation */ 27} 28 29/* The PCI address space does not equal the physical memory 30 * address space. The networking and block device layers use 31 * this boolean for bounce buffer decisions. 32 */ 33#define PCI_DMA_BUS_IS_PHYS (0) 34 35/* PCI IOMMU mapping bypass support. */ 36 37/* PCI 64-bit addressing works for all slots on all controller 38 * types on sparc64. However, it requires that the device 39 * can drive enough of the 64 bits. 40 */ 41#define PCI64_REQUIRED_MASK (~(dma64_addr_t)0) 42#define PCI64_ADDR_BASE 0xfffc000000000000UL 43 44#ifdef CONFIG_PCI 45static inline void pci_dma_burst_advice(struct pci_dev *pdev, 46 enum pci_dma_burst_strategy *strat, 47 unsigned long *strategy_parameter) 48{ 49 unsigned long cacheline_size; 50 u8 byte; 51 52 pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); 53 if (byte == 0) 54 cacheline_size = 1024; 55 else 56 cacheline_size = (int) byte * 4; 57 58 *strat = PCI_DMA_BURST_BOUNDARY; 59 *strategy_parameter = cacheline_size; 60} 61#endif 62 63/* Return the index of the PCI controller for device PDEV. */ 64 65extern int pci_domain_nr(struct pci_bus *bus); 66static inline int pci_proc_domain(struct pci_bus *bus) 67{ 68 return 1; 69} 70 71/* Platform support for /proc/bus/pci/X/Y mmap()s. */ 72 73#define HAVE_PCI_MMAP 74#define HAVE_ARCH_PCI_GET_UNMAPPED_AREA 75#define get_pci_unmapped_area get_fb_unmapped_area 76 77extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, 78 enum pci_mmap_state mmap_state, 79 int write_combine); 80 81extern void 82pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, 83 struct resource *res); 84 85extern void 86pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, 87 struct pci_bus_region *region); 88 89static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) 90{ 91 return PCI_IRQ_NONE; 92} 93 94struct device_node; 95extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev); 96 97#define HAVE_ARCH_PCI_RESOURCE_TO_USER 98extern void pci_resource_to_user(const struct pci_dev *dev, int bar, 99 const struct resource *rsrc, 100 resource_size_t *start, resource_size_t *end); 101#endif /* __KERNEL__ */ 102 103#endif /* __SPARC64_PCI_H */ 104