diff options
Diffstat (limited to 'include/asm-sparc/pci.h')
| -rw-r--r-- | include/asm-sparc/pci.h | 176 |
1 files changed, 7 insertions, 169 deletions
diff --git a/include/asm-sparc/pci.h b/include/asm-sparc/pci.h index b93b6c79e08..b807d52a480 100644 --- a/include/asm-sparc/pci.h +++ b/include/asm-sparc/pci.h @@ -1,170 +1,8 @@ -#ifndef __SPARC_PCI_H -#define __SPARC_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 -#define pcibios_scan_all_fns(a, b) 0 - -#define PCIBIOS_MIN_IO 0UL -#define PCIBIOS_MIN_MEM 0UL - -#define PCI_IRQ_NONE 0xffffffff - -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, int active) -{ - /* We don't do dynamic PCI IRQ allocation */ -} - -/* Dynamic DMA mapping stuff. - */ -#define PCI_DMA_BUS_IS_PHYS (0) - -#include <asm/scatterlist.h> - -struct pci_dev; - -/* Allocate and map kernel buffer using consistent mode DMA for a device. - * hwdev should be valid struct pci_dev pointer for PCI devices. - */ -extern void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, dma_addr_t *dma_handle); - -/* Free and unmap a consistent DMA buffer. - * cpu_addr is what was returned from pci_alloc_consistent, - * size must be the same as what as passed into pci_alloc_consistent, - * and likewise dma_addr must be the same as what *dma_addrp was set to. - * - * References to the memory and mappings assosciated with cpu_addr/dma_addr - * past this call are illegal. - */ -extern void pci_free_consistent(struct pci_dev *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle); - -/* Map a single buffer of the indicated size for DMA in streaming mode. - * The 32-bit bus address to use is returned. - * - * Once the device is given the dma address, the device owns this memory - * until either pci_unmap_single or pci_dma_sync_single_for_cpu is performed. - */ -extern dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction); - -/* Unmap a single streaming mode DMA translation. The dma_addr and size - * must match what was provided for in a previous pci_map_single call. All - * other usages are undefined. - * - * After this call, reads by the cpu to the buffer are guaranteed to see - * whatever the device wrote there. - */ -extern void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, size_t size, int direction); - -/* 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)) - -/* - * Same as above, only with pages instead of mapped addresses. - */ -extern dma_addr_t pci_map_page(struct pci_dev *hwdev, struct page *page, - unsigned long offset, size_t size, int direction); -extern void pci_unmap_page(struct pci_dev *hwdev, - dma_addr_t dma_address, size_t size, int direction); - -/* Map a set of buffers described by scatterlist in streaming - * mode for DMA. This is the scather-gather version of the - * above pci_map_single interface. Here the scatter gather list - * elements are each tagged with the appropriate dma address - * and length. They are obtained via sg_dma_{address,length}(SG). - * - * NOTE: An implementation may be able to use a smaller number of - * DMA address/length pairs than there are SG table elements. - * (for example via virtual mapping capabilities) - * The routine returns the number of addr/length pairs actually - * used, at most nents. - * - * Device ownership issues as mentioned above for pci_map_single are - * the same here. - */ -extern int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents, int direction); - -/* Unmap a set of streaming mode DMA translations. - * Again, cpu read rules concerning calls here are the same as for - * pci_unmap_single() above. - */ -extern void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nhwents, int direction); - -/* Make physical memory consistent for a single - * streaming mode DMA translation after a transfer. - * - * If you perform a pci_map_single() but wish to interrogate the - * buffer using the cpu, yet do not wish to teardown the PCI dma - * mapping, you must call this function before doing so. At the - * next point you give the PCI dma address back to the card, you - * must first perform a pci_dma_sync_for_device, and then the device - * again owns the buffer. - */ -extern void pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle, size_t size, int direction); -extern void pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle, size_t size, int direction); - -/* Make physical memory consistent for a set of streaming - * mode DMA translations after a transfer. - * - * The same as pci_dma_sync_single_* but for a scatter-gather list, - * same rules and usage. - */ -extern void pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg, int nelems, int direction); -extern void pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg, int nelems, int direction); - -/* Return whether the given PCI device DMA address mask can - * be supported properly. For example, if your device can - * only drive the low 24-bits during PCI bus mastering, then - * you would pass 0x00ffffff as the mask to this function. - */ -static inline int pci_dma_supported(struct pci_dev *hwdev, u64 mask) -{ - return 1; -} - -#ifdef CONFIG_PCI -static inline void pci_dma_burst_advice(struct pci_dev *pdev, - enum pci_dma_burst_strategy *strat, - unsigned long *strategy_parameter) -{ - *strat = PCI_DMA_BURST_INFINITY; - *strategy_parameter = ~0UL; -} +#ifndef ___ASM_SPARC_PCI_H +#define ___ASM_SPARC_PCI_H +#if defined(__sparc__) && defined(__arch64__) +#include <asm-sparc/pci_64.h> +#else +#include <asm-sparc/pci_32.h> +#endif #endif - -#define PCI_DMA_ERROR_CODE (~(dma_addr_t)0x0) - -static inline int pci_dma_mapping_error(dma_addr_t dma_addr) -{ - return (dma_addr == PCI_DMA_ERROR_CODE); -} - -struct device_node; -extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev); - -#endif /* __KERNEL__ */ - -/* generic pci stuff */ -#include <asm-generic/pci.h> - -#endif /* __SPARC_PCI_H */ |