diff options
Diffstat (limited to 'include/asm-sparc64')
| -rw-r--r-- | include/asm-sparc64/dma-mapping.h | 337 | ||||
| -rw-r--r-- | include/asm-sparc64/iommu.h | 11 | ||||
| -rw-r--r-- | include/asm-sparc64/parport.h | 2 | ||||
| -rw-r--r-- | include/asm-sparc64/pci.h | 152 | ||||
| -rw-r--r-- | include/asm-sparc64/sbus.h | 86 |
5 files changed, 203 insertions, 385 deletions
diff --git a/include/asm-sparc64/dma-mapping.h b/include/asm-sparc64/dma-mapping.h index c58ec1661df..0a1006692bb 100644 --- a/include/asm-sparc64/dma-mapping.h +++ b/include/asm-sparc64/dma-mapping.h @@ -1,307 +1,134 @@ #ifndef _ASM_SPARC64_DMA_MAPPING_H #define _ASM_SPARC64_DMA_MAPPING_H - -#ifdef CONFIG_PCI - -/* we implement the API below in terms of the existing PCI one, - * so include it */ -#include <linux/pci.h> -/* need struct page definitions */ +#include <linux/scatterlist.h> #include <linux/mm.h> -#include <asm/of_device.h> - -static inline int -dma_supported(struct device *dev, u64 mask) -{ - BUG_ON(dev->bus != &pci_bus_type); - - return pci_dma_supported(to_pci_dev(dev), mask); -} - -static inline int -dma_set_mask(struct device *dev, u64 dma_mask) -{ - BUG_ON(dev->bus != &pci_bus_type); - - return pci_set_dma_mask(to_pci_dev(dev), dma_mask); -} - -static inline void * -dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t flag) -{ - BUG_ON(dev->bus != &pci_bus_type); - - return pci_iommu_ops->alloc_consistent(to_pci_dev(dev), size, dma_handle, flag); -} - -static inline void -dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t dma_handle) -{ - BUG_ON(dev->bus != &pci_bus_type); - - pci_free_consistent(to_pci_dev(dev), size, cpu_addr, dma_handle); -} - -static inline dma_addr_t -dma_map_single(struct device *dev, void *cpu_addr, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - return pci_map_single(to_pci_dev(dev), cpu_addr, size, (int)direction); -} - -static inline void -dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - pci_unmap_single(to_pci_dev(dev), dma_addr, size, (int)direction); -} - -static inline dma_addr_t -dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - return pci_map_page(to_pci_dev(dev), page, offset, size, (int)direction); -} - -static inline void -dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - pci_unmap_page(to_pci_dev(dev), dma_address, size, (int)direction); -} - -static inline int -dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - return pci_map_sg(to_pci_dev(dev), sg, nents, (int)direction); -} - -static inline void -dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - pci_unmap_sg(to_pci_dev(dev), sg, nhwentries, (int)direction); -} - -static inline void -dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - pci_dma_sync_single_for_cpu(to_pci_dev(dev), dma_handle, - size, (int)direction); -} - -static inline void -dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - pci_dma_sync_single_for_device(to_pci_dev(dev), dma_handle, - size, (int)direction); -} - -static inline void -dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - pci_dma_sync_sg_for_cpu(to_pci_dev(dev), sg, nelems, (int)direction); -} - -static inline void -dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - BUG_ON(dev->bus != &pci_bus_type); - - pci_dma_sync_sg_for_device(to_pci_dev(dev), sg, nelems, (int)direction); -} - -static inline int -dma_mapping_error(dma_addr_t dma_addr) -{ - return pci_dma_mapping_error(dma_addr); -} - -#else - -struct device; -struct page; -struct scatterlist; - -static inline int -dma_supported(struct device *dev, u64 mask) -{ - BUG(); - return 0; -} - -static inline int -dma_set_mask(struct device *dev, u64 dma_mask) -{ - BUG(); - return 0; -} +#define DMA_ERROR_CODE (~(dma_addr_t)0x0) + +struct dma_ops { + void *(*alloc_coherent)(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag); + void (*free_coherent)(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle); + dma_addr_t (*map_single)(struct device *dev, void *cpu_addr, + size_t size, + enum dma_data_direction direction); + void (*unmap_single)(struct device *dev, dma_addr_t dma_addr, + size_t size, + enum dma_data_direction direction); + int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction direction); + void (*unmap_sg)(struct device *dev, struct scatterlist *sg, + int nhwentries, + enum dma_data_direction direction); + void (*sync_single_for_cpu)(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction); + void (*sync_single_for_device)(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction); + void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, + int nelems, + enum dma_data_direction direction); + void (*sync_sg_for_device)(struct device *dev, struct scatterlist *sg, + int nelems, + enum dma_data_direction direction); +}; +extern const struct dma_ops *dma_ops; + +extern int dma_supported(struct device *dev, u64 mask); +extern int dma_set_mask(struct device *dev, u64 dma_mask); static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag) { - BUG(); - return NULL; + return dma_ops->alloc_coherent(dev, size, dma_handle, flag); } static inline void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *cpu_addr, dma_addr_t dma_handle) { - BUG(); + dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); } -static inline dma_addr_t -dma_map_single(struct device *dev, void *cpu_addr, size_t size, - enum dma_data_direction direction) +static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, + size_t size, + enum dma_data_direction direction) { - BUG(); - return 0; + return dma_ops->map_single(dev, cpu_addr, size, direction); } -static inline void -dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, - enum dma_data_direction direction) +static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, + size_t size, + enum dma_data_direction direction) { - BUG(); + dma_ops->unmap_single(dev, dma_addr, size, direction); } -static inline dma_addr_t -dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction) +static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction) { - BUG(); - return 0; + return dma_ops->map_single(dev, page_address(page) + offset, + size, direction); } -static inline void -dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, - enum dma_data_direction direction) +static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address, + size_t size, + enum dma_data_direction direction) { - BUG(); + dma_ops->unmap_single(dev, dma_address, size, direction); } -static inline int -dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction direction) +static inline int dma_map_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) { - BUG(); - return 0; + return dma_ops->map_sg(dev, sg, nents, direction); } -static inline void -dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, - enum dma_data_direction direction) +static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) { - BUG(); + dma_ops->unmap_sg(dev, sg, nents, direction); } -static inline void -dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) +static inline void dma_sync_single_for_cpu(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction) { - BUG(); + dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction); } -static inline void -dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) +static inline void dma_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, + size_t size, + enum dma_data_direction direction) { - BUG(); + dma_ops->sync_single_for_device(dev, dma_handle, size, direction); } -static inline void -dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, - enum dma_data_direction direction) +static inline void dma_sync_sg_for_cpu(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction direction) { - BUG(); + dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction); } -static inline void -dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems, - enum dma_data_direction direction) +static inline void dma_sync_sg_for_device(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction direction) { - BUG(); + dma_ops->sync_sg_for_device(dev, sg, nelems, direction); } -static inline int -dma_mapping_error(dma_addr_t dma_addr) +static inline int dma_mapping_error(dma_addr_t dma_addr) { - BUG(); - return 0; + return (dma_addr == DMA_ERROR_CODE); } -#endif /* PCI */ - - -/* Now for the API extensions over the pci_ one */ - #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) #define dma_is_consistent(d, h) (1) -static inline int -dma_get_cache_alignment(void) -{ - /* no easy way to get cache size on all processors, so return - * the maximum possible, to be safe */ - return (1 << INTERNODE_CACHE_SHIFT); -} - -static inline void -dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - /* just sync everything, that's all the pci API can do */ - dma_sync_single_for_cpu(dev, dma_handle, offset+size, direction); -} - -static inline void -dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - /* just sync everything, that's all the pci API can do */ - dma_sync_single_for_device(dev, dma_handle, offset+size, direction); -} - -static inline void -dma_cache_sync(struct device *dev, void *vaddr, size_t size, - enum dma_data_direction direction) -{ - /* could define this in terms of the dma_cache ... operations, - * but if you get this on a platform, you should convert the platform - * to using the generic device DMA API */ - BUG(); -} - #endif /* _ASM_SPARC64_DMA_MAPPING_H */ diff --git a/include/asm-sparc64/iommu.h b/include/asm-sparc64/iommu.h index 0b1813f4104..9eac6676caf 100644 --- a/include/asm-sparc64/iommu.h +++ b/include/asm-sparc64/iommu.h @@ -1,7 +1,6 @@ -/* $Id: iommu.h,v 1.10 2001/03/08 09:55:56 davem Exp $ - * iommu.h: Definitions for the sun5 IOMMU. +/* iommu.h: Definitions for the sun5 IOMMU. * - * Copyright (C) 1996, 1999 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net) */ #ifndef _SPARC64_IOMMU_H #define _SPARC64_IOMMU_H @@ -33,6 +32,7 @@ struct iommu { unsigned long iommu_tsbbase; unsigned long iommu_flush; unsigned long iommu_flushinv; + unsigned long iommu_tags; unsigned long iommu_ctxflush; unsigned long write_complete_reg; unsigned long dummy_page; @@ -54,4 +54,7 @@ struct strbuf { volatile unsigned long __flushflag_buf[(64+(64-1)) / sizeof(long)]; }; -#endif /* !(_SPARC_IOMMU_H) */ +extern int iommu_table_init(struct iommu *iommu, int tsbsize, + u32 dma_offset, u32 dma_addr_mask); + +#endif /* !(_SPARC64_IOMMU_H) */ diff --git a/include/asm-sparc64/parport.h b/include/asm-sparc64/parport.h index 600afe5ae2e..8116e8f6062 100644 --- a/include/asm-sparc64/parport.h +++ b/include/asm-sparc64/parport.h @@ -117,7 +117,7 @@ static int __devinit ecpp_probe(struct of_device *op, const struct of_device_id if (!strcmp(parent->name, "dma")) { p = parport_pc_probe_port(base, base + 0x400, op->irqs[0], PARPORT_DMA_NOFIFO, - op->dev.parent); + op->dev.parent->parent); if (!p) return -ENOMEM; dev_set_drvdata(&op->dev, p); diff --git a/include/asm-sparc64/pci.h b/include/asm-sparc64/pci.h index e11ac100f04..1393e57d50f 100644 --- a/include/asm-sparc64/pci.h +++ b/include/asm-sparc64/pci.h @@ -3,8 +3,7 @@ #ifdef __KERNEL__ -#include <linux/fs.h> -#include <linux/mm.h> +#include <linux/dma-mapping.h> /* Can be used to override the logic in pci_scan_bus for skipping * already-configured bus numbers - to be used for buggy BIOSes @@ -30,80 +29,42 @@ static inline void pcibios_penalize_isa_irq(int irq, int active) /* We don't do dynamic PCI IRQ allocation */ } -/* Dynamic DMA mapping stuff. - */ - /* The PCI address space does not 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 (0) -#include <asm/scatterlist.h> - -struct pci_dev; - -struct pci_iommu_ops { - void *(*alloc_consistent)(struct pci_dev *, size_t, dma_addr_t *, gfp_t); - void (*free_consistent)(struct pci_dev *, size_t, void *, dma_addr_t); - dma_addr_t (*map_single)(struct pci_dev *, void *, size_t, int); - void (*unmap_single)(struct pci_dev *, dma_addr_t, size_t, int); - int (*map_sg)(struct pci_dev *, struct scatterlist *, int, int); - void (*unmap_sg)(struct pci_dev *, struct scatterlist *, int, int); - void (*dma_sync_single_for_cpu)(struct pci_dev *, dma_addr_t, size_t, int); - void (*dma_sync_sg_for_cpu)(struct pci_dev *, struct scatterlist *, int, int); -}; - -extern const struct pci_iommu_ops *pci_iommu_ops; - -/* Allocate and map kernel buffer using consistent mode DMA for a device. - * hwdev should be valid struct pci_dev pointer for PCI devices. - */ -static inline void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, dma_addr_t *dma_handle) +static inline void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, + dma_addr_t *dma_handle) { - return pci_iommu_ops->alloc_consistent(hwdev, size, dma_handle, GFP_ATOMIC); + return dma_alloc_coherent(&pdev->dev, size, dma_handle, GFP_ATOMIC); } -/* 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 associated with cpu_addr/dma_addr - * past this call are illegal. - */ -static inline void pci_free_consistent(struct pci_dev *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle) +static inline void pci_free_consistent(struct pci_dev *pdev, size_t size, + void *vaddr, dma_addr_t dma_handle) { - return pci_iommu_ops->free_consistent(hwdev, size, vaddr, dma_handle); + return dma_free_coherent(&pdev->dev, size, vaddr, 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. - */ -static inline dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction) +static inline dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, + size_t size, int direction) { - return pci_iommu_ops->map_single(hwdev, ptr, size, direction); + return dma_map_single(&pdev->dev, ptr, size, + (enum dma_data_direction) 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. - */ -static inline void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, size_t size, int direction) +static inline void pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, + size_t size, int direction) { - pci_iommu_ops->unmap_single(hwdev, dma_addr, size, direction); + dma_unmap_single(&pdev->dev, dma_addr, size, + (enum dma_data_direction) direction); } -/* No highmem on sparc64, plus we have an IOMMU, so mapping pages is easy. */ #define pci_map_page(dev, page, off, size, dir) \ pci_map_single(dev, (page_address(page) + (off)), size, dir) -#define pci_unmap_page(dev,addr,sz,dir) pci_unmap_single(dev,addr,sz,dir) +#define pci_unmap_page(dev,addr,sz,dir) \ + pci_unmap_single(dev,addr,sz,dir) /* pci_unmap_{single,page} is not a nop, thus... */ #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ @@ -119,75 +80,48 @@ static inline void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ (((PTR)->LEN_NAME) = (VAL)) -/* Map a set of buffers described by scatterlist in streaming - * mode for DMA. This is the scatter-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. - */ -static inline int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents, int direction) +static inline int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, + int nents, int direction) { - return pci_iommu_ops->map_sg(hwdev, sg, nents, direction); + return dma_map_sg(&pdev->dev, sg, nents, + (enum dma_data_direction) 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. - */ -static inline void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nhwents, int direction) +static inline void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, + int nents, int direction) { - pci_iommu_ops->unmap_sg(hwdev, sg, nhwents, direction); + dma_unmap_sg(&pdev->dev, sg, nents, + (enum dma_data_direction) 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. - */ -static inline void pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle, size_t size, int direction) +static inline void pci_dma_sync_single_for_cpu(struct pci_dev *pdev, + dma_addr_t dma_handle, + size_t size, int direction) { - pci_iommu_ops->dma_sync_single_for_cpu(hwdev, dma_handle, size, direction); + dma_sync_single_for_cpu(&pdev->dev, dma_handle, size, + (enum dma_data_direction) direction); } -static inline void -pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle, - size_t size, int direction) +static inline void pci_dma_sync_single_for_device(struct pci_dev *pdev, + dma_addr_t dma_handle, + size_t size, int direction) { /* No flushing needed to sync cpu writes to the device. */ - BUG_ON(direction == PCI_DMA_NONE); } -/* 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. - */ -static inline void pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg, int nelems, int direction) +static inline void pci_dma_sync_sg_for_cpu(struct pci_dev *pdev, + struct scatterlist *sg, + int nents, int direction) { - pci_iommu_ops->dma_sync_sg_for_cpu(hwdev, sg, nelems, direction); + dma_sync_sg_for_cpu(&pdev->dev, sg, nents, + (enum dma_data_direction) direction); } -static inline void -pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg, - int nelems, int direction) +static inline void pci_dma_sync_sg_for_device(struct pci_dev *pdev, + struct scatterlist *sg, + int nelems, int direction) { /* No flushing needed to sync cpu writes to the device. */ - BUG_ON(direction == PCI_DMA_NONE); } /* Return whether the given PCI device DMA address mask can @@ -206,11 +140,9 @@ extern int pci_dma_supported(struct pci_dev *hwdev, u64 mask); #define PCI64_REQUIRED_MASK (~(dma64_addr_t)0) #define PCI64_ADDR_BASE 0xfffc000000000000UL -#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); + return dma_mapping_error(dma_addr); } #ifdef CONFIG_PCI diff --git a/include/asm-sparc64/sbus.h b/include/asm-sparc64/sbus.h index 7efd49d31bb..0151cad486f 100644 --- a/include/asm-sparc64/sbus.h +++ b/include/asm-sparc64/sbus.h @@ -1,7 +1,6 @@ -/* $Id: sbus.h,v 1.14 2000/02/18 13:50:55 davem Exp $ - * sbus.h: Defines for the Sun SBus. +/* sbus.h: Defines for the Sun SBus. * - * Copyright (C) 1996, 1999 David S. Miller (davem@redhat.com) + * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net) */ #ifndef _SPARC64_SBUS_H @@ -69,7 +68,6 @@ struct sbus_dev { /* This struct describes the SBus(s) found on this machine. */ struct sbus_bus { struct of_device ofdev; - void *iommu; /* Opaque IOMMU cookie */ struct sbus_dev *devices; /* Tree of SBUS devices */ struct sbus_bus *next; /* Next SBUS in system */ int prom_node; /* OBP node of SBUS */ @@ -102,9 +100,18 @@ extern struct sbus_bus *sbus_root; extern void sbus_set_sbus64(struct sbus_dev *, int); extern void sbus_fill_device_irq(struct sbus_dev *); -/* These yield IOMMU mappings in consistent mode. */ -extern void *sbus_alloc_consistent(struct sbus_dev *, size_t, dma_addr_t *dma_addrp); -extern void sbus_free_consistent(struct sbus_dev *, size_t, void *, dma_addr_t); +static inline void *sbus_alloc_consistent(struct sbus_dev *sdev , size_t size, + dma_addr_t *dma_handle) +{ + return dma_alloc_coherent(&sdev->ofdev.dev, size, + dma_handle, GFP_ATOMIC); +} + +static inline void sbus_free_consistent(struct sbus_dev *sdev, size_t size, + void *vaddr, dma_addr_t dma_handle) +{ + return dma_free_coherent(&sdev->ofdev.dev, size, vaddr, dma_handle); +} #define SBUS_DMA_BIDIRECTIONAL DMA_BIDIRECTIONAL #define SBUS_DMA_TODEVICE DMA_TO_DEVICE @@ -112,18 +119,67 @@ extern void sbus_free_consistent(struct sbus_dev *, size_t, void *, dma_addr_t); #define SBUS_DMA_NONE DMA_NONE /* All the rest use streaming mode mappings. */ -extern dma_addr_t sbus_map_single(struct sbus_dev *, void *, size_t, int); -extern void sbus_unmap_single(struct sbus_dev *, dma_addr_t, size_t, int); -extern int sbus_map_sg(struct sbus_dev *, struct scatterlist *, int, int); -extern void sbus_unmap_sg(struct sbus_dev *, struct scatterlist *, int, int); +static inline dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *ptr, + size_t size, int direction) +{ + return dma_map_single(&sdev->ofdev.dev, ptr, size, + (enum dma_data_direction) direction); +} + +static inline void sbus_unmap_single(struct sbus_dev *sdev, + dma_addr_t dma_addr, size_t size, + int direction) +{ + dma_unmap_single(&sdev->ofdev.dev, dma_addr, size, + (enum dma_data_direction) direction); +} + +static inline int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, + int nents, int direction) +{ + return dma_map_sg(&sdev->ofdev.dev, sg, nents, + (enum dma_data_direction) direction); +} + +static inline void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg, + int nents, int direction) +{ + dma_unmap_sg(&sdev->ofdev.dev, sg, nents, + (enum dma_data_direction) direction); +} /* Finally, allow explicit synchronization of streamable mappings. */ -extern void sbus_dma_sync_single_for_cpu(struct sbus_dev *, dma_addr_t, size_t, int); +static inline void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, + dma_addr_t dma_handle, + size_t size, int direction) +{ + dma_sync_single_for_cpu(&sdev->ofdev.dev, dma_handle, size, + (enum dma_data_direction) direction); +} #define sbus_dma_sync_single sbus_dma_sync_single_for_cpu -extern void sbus_dma_sync_single_for_device(struct sbus_dev *, dma_addr_t, size_t, int); -extern void sbus_dma_sync_sg_for_cpu(struct sbus_dev *, struct scatterlist *, int, int); + +static inline void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, + dma_addr_t dma_handle, + size_t size, int direction) +{ + /* No flushing needed to sync cpu writes to the device. */ +} + +static inline void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev, + struct scatterlist *sg, + int nents, int direction) +{ + dma_sync_sg_for_cpu(&sdev->ofdev.dev, sg, nents, + (enum dma_data_direction) direction); +} #define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu -extern void sbus_dma_sync_sg_for_device(struct sbus_dev *, struct scatterlist *, int, int); + +static inline void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev, + struct scatterlist *sg, + int nents, int direction) +{ + /* No flushing needed to sync cpu writes to the device. */ +} extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *); extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *); |