diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-powerpc/device.h | 19 | ||||
| -rw-r--r-- | include/asm-powerpc/dma-mapping.h | 180 | ||||
| -rw-r--r-- | include/asm-powerpc/ibmebus.h | 1 | ||||
| -rw-r--r-- | include/asm-powerpc/iommu.h | 20 | ||||
| -rw-r--r-- | include/asm-powerpc/iseries/iommu.h | 4 | ||||
| -rw-r--r-- | include/asm-powerpc/machdep.h | 4 | ||||
| -rw-r--r-- | include/asm-powerpc/of_device.h | 2 | ||||
| -rw-r--r-- | include/asm-powerpc/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-powerpc/vio.h | 1 |
9 files changed, 180 insertions, 59 deletions
diff --git a/include/asm-powerpc/device.h b/include/asm-powerpc/device.h index d8f9872b0e2..228ab2a315b 100644 --- a/include/asm-powerpc/device.h +++ b/include/asm-powerpc/device.h @@ -3,5 +3,22 @@ * * This file is released under the GPLv2 */ -#include <asm-generic/device.h> +#ifndef _ASM_POWERPC_DEVICE_H +#define _ASM_POWERPC_DEVICE_H +struct dma_mapping_ops; +struct device_node; + +struct dev_archdata { + /* Optional pointer to an OF device node */ + struct device_node *of_node; + + /* DMA operations on that device */ + struct dma_mapping_ops *dma_ops; + void *dma_data; + + /* NUMA node if applicable */ + int numa_node; +}; + +#endif /* _ASM_POWERPC_DEVICE_H */ diff --git a/include/asm-powerpc/dma-mapping.h b/include/asm-powerpc/dma-mapping.h index 2ab9baf78bb..8367810c994 100644 --- a/include/asm-powerpc/dma-mapping.h +++ b/include/asm-powerpc/dma-mapping.h @@ -44,26 +44,148 @@ extern void __dma_sync_page(struct page *page, unsigned long offset, #endif /* ! CONFIG_NOT_COHERENT_CACHE */ #ifdef CONFIG_PPC64 +/* + * DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO + */ +struct dma_mapping_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 *vaddr, dma_addr_t dma_handle); + dma_addr_t (*map_single)(struct device *dev, void *ptr, + 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 nents, enum dma_data_direction direction); + int (*dma_supported)(struct device *dev, u64 mask); + int (*dac_dma_supported)(struct device *dev, u64 mask); + int (*set_dma_mask)(struct device *dev, u64 dma_mask); +}; + +static inline struct dma_mapping_ops *get_dma_ops(struct device *dev) +{ + /* We don't handle the NULL dev case for ISA for now. We could + * do it via an out of line call but it is not needed for now. The + * only ISA DMA device we support is the floppy and we have a hack + * in the floppy driver directly to get a device for us. + */ + if (unlikely(dev == NULL || dev->archdata.dma_ops == NULL)) + return NULL; + return dev->archdata.dma_ops; +} + +static inline int dma_supported(struct device *dev, u64 mask) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + if (unlikely(dma_ops == NULL)) + return 0; + if (dma_ops->dma_supported == NULL) + return 1; + return dma_ops->dma_supported(dev, mask); +} + +static inline int dma_set_mask(struct device *dev, u64 dma_mask) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + if (unlikely(dma_ops == NULL)) + return -EIO; + if (dma_ops->set_dma_mask != NULL) + return dma_ops->set_dma_mask(dev, dma_mask); + if (!dev->dma_mask || !dma_supported(dev, *dev->dma_mask)) + return -EIO; + *dev->dma_mask = dma_mask; + return 0; +} + +static inline void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + BUG_ON(!dma_ops); + return dma_ops->alloc_coherent(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) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + BUG_ON(!dma_ops); + 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) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + BUG_ON(!dma_ops); + 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) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + BUG_ON(!dma_ops); + 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) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + BUG_ON(!dma_ops); + 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) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + BUG_ON(!dma_ops); + 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) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + BUG_ON(!dma_ops); + 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) +{ + struct dma_mapping_ops *dma_ops = get_dma_ops(dev); + + BUG_ON(!dma_ops); + dma_ops->unmap_sg(dev, sg, nhwentries, direction); +} -extern int dma_supported(struct device *dev, u64 mask); -extern int dma_set_mask(struct device *dev, u64 dma_mask); -extern void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag); -extern void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t dma_handle); -extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, - size_t size, enum dma_data_direction direction); -extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, - size_t size, enum dma_data_direction direction); -extern dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction); -extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address, - size_t size, enum dma_data_direction direction); -extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction direction); -extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg, - int nhwentries, enum dma_data_direction direction); + +/* + * Available generic sets of operations + */ +extern struct dma_mapping_ops dma_iommu_ops; +extern struct dma_mapping_ops dma_direct_ops; #else /* CONFIG_PPC64 */ @@ -261,25 +383,5 @@ static inline void dma_cache_sync(void *vaddr, size_t size, __dma_sync(vaddr, size, (int)direction); } -/* - * DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO - */ -struct dma_mapping_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 *vaddr, dma_addr_t dma_handle); - dma_addr_t (*map_single)(struct device *dev, void *ptr, - 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 nents, enum dma_data_direction direction); - int (*dma_supported)(struct device *dev, u64 mask); - int (*dac_dma_supported)(struct device *dev, u64 mask); -}; - #endif /* __KERNEL__ */ #endif /* _ASM_DMA_MAPPING_H */ diff --git a/include/asm-powerpc/ibmebus.h b/include/asm-powerpc/ibmebus.h index 3493429b70f..66112114b8c 100644 --- a/include/asm-powerpc/ibmebus.h +++ b/include/asm-powerpc/ibmebus.h @@ -44,7 +44,6 @@ #include <linux/mod_devicetable.h> #include <asm/of_device.h> -extern struct dma_mapping_ops ibmebus_dma_ops; extern struct bus_type ibmebus_bus_type; struct ibmebus_dev { diff --git a/include/asm-powerpc/iommu.h b/include/asm-powerpc/iommu.h index 19e6f7e0a60..19403183dbb 100644 --- a/include/asm-powerpc/iommu.h +++ b/include/asm-powerpc/iommu.h @@ -79,22 +79,22 @@ extern void iommu_free_table(struct device_node *dn); extern struct iommu_table *iommu_init_table(struct iommu_table * tbl, int nid); -extern int iommu_map_sg(struct device *dev, struct iommu_table *tbl, - struct scatterlist *sglist, int nelems, unsigned long mask, - enum dma_data_direction direction); +extern int iommu_map_sg(struct iommu_table *tbl, struct scatterlist *sglist, + int nelems, unsigned long mask, + enum dma_data_direction direction); extern void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction); + int nelems, enum dma_data_direction direction); extern void *iommu_alloc_coherent(struct iommu_table *tbl, size_t size, - dma_addr_t *dma_handle, unsigned long mask, - gfp_t flag, int node); + dma_addr_t *dma_handle, unsigned long mask, + gfp_t flag, int node); extern void iommu_free_coherent(struct iommu_table *tbl, size_t size, - void *vaddr, dma_addr_t dma_handle); + void *vaddr, dma_addr_t dma_handle); extern dma_addr_t iommu_map_single(struct iommu_table *tbl, void *vaddr, - size_t size, unsigned long mask, - enum dma_data_direction direction); + size_t size, unsigned long mask, + enum dma_data_direction direction); extern void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle, - size_t size, enum dma_data_direction direction); + size_t size, enum dma_data_direction direction); extern void iommu_init_early_pSeries(void); extern void iommu_init_early_iSeries(void); diff --git a/include/asm-powerpc/iseries/iommu.h b/include/asm-powerpc/iseries/iommu.h index 0edbfe10cb3..6e323a13ac3 100644 --- a/include/asm-powerpc/iseries/iommu.h +++ b/include/asm-powerpc/iseries/iommu.h @@ -21,11 +21,13 @@ * Boston, MA 02111-1307 USA */ +struct pci_dev; struct device_node; struct iommu_table; /* Creates table for an individual device node */ -extern void iommu_devnode_init_iSeries(struct device_node *dn); +extern void iommu_devnode_init_iSeries(struct pci_dev *pdev, + struct device_node *dn); /* Get table parameters from HV */ extern void iommu_table_getparms_iSeries(unsigned long busno, diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h index 162205f6264..ccc29744656 100644 --- a/include/asm-powerpc/machdep.h +++ b/include/asm-powerpc/machdep.h @@ -84,8 +84,8 @@ struct machdep_calls { unsigned long (*tce_get)(struct iommu_table *tbl, long index); void (*tce_flush)(struct iommu_table *tbl); - void (*iommu_dev_setup)(struct pci_dev *dev); - void (*iommu_bus_setup)(struct pci_bus *bus); + void (*pci_dma_dev_setup)(struct pci_dev *dev); + void (*pci_dma_bus_setup)(struct pci_bus *bus); #endif /* CONFIG_PPC64 */ int (*probe)(void); diff --git a/include/asm-powerpc/of_device.h b/include/asm-powerpc/of_device.h index 1ef7e9edd1a..a889b2005bf 100644 --- a/include/asm-powerpc/of_device.h +++ b/include/asm-powerpc/of_device.h @@ -14,7 +14,7 @@ */ struct of_device { - struct device_node *node; /* OF device node */ + struct device_node *node; /* to be obsoleted */ u64 dma_mask; /* DMA mask */ struct device dev; /* Generic device interface */ }; diff --git a/include/asm-powerpc/pci.h b/include/asm-powerpc/pci.h index c7728605149..16f13319c76 100644 --- a/include/asm-powerpc/pci.h +++ b/include/asm-powerpc/pci.h @@ -70,15 +70,15 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) */ #define PCI_DISABLE_MWI -extern struct dma_mapping_ops pci_dma_ops; +extern struct dma_mapping_ops *pci_dma_ops; /* For DAC DMA, we currently don't support it by default, but * we let 64-bit platforms override this. */ static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask) { - if (pci_dma_ops.dac_dma_supported) - return pci_dma_ops.dac_dma_supported(&hwdev->dev, mask); + if (pci_dma_ops && pci_dma_ops->dac_dma_supported) + return pci_dma_ops->dac_dma_supported(&hwdev->dev, mask); return 0; } @@ -210,6 +210,8 @@ extern int remap_bus_range(struct pci_bus *bus); extern void pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus); +extern void pcibios_setup_new_device(struct pci_dev *dev); + extern void pcibios_claim_one_bus(struct pci_bus *b); extern struct pci_controller *init_phb_dynamic(struct device_node *dn); diff --git a/include/asm-powerpc/vio.h b/include/asm-powerpc/vio.h index 4b51d42e141..0117b544ecb 100644 --- a/include/asm-powerpc/vio.h +++ b/include/asm-powerpc/vio.h @@ -45,7 +45,6 @@ struct iommu_table; * The vio_dev structure is used to describe virtual I/O devices. */ struct vio_dev { - struct iommu_table *iommu_table; /* vio_map_* uses this */ const char *name; const char *type; uint32_t unit_address; |