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author | David S. Miller <davem@davemloft.net> | 2008-08-27 18:37:58 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-08-29 02:13:12 -0700 |
commit | 7a715f46012f3552294154978aed59cba9804928 (patch) | |
tree | 9e7079ae4ad370b63ac6c8a4face573d6cf60533 /arch/sparc/kernel/ioport.c | |
parent | 5778002874de0fb7e3d8c4a0a4afb6b1a6297069 (diff) | |
download | talos-obmc-linux-7a715f46012f3552294154978aed59cba9804928.tar.gz talos-obmc-linux-7a715f46012f3552294154978aed59cba9804928.zip |
sparc: Make SBUS DMA interfaces take struct device.
This is the first step in converting all the SBUS drivers
over to generic dma_*().
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/ioport.c')
-rw-r--r-- | arch/sparc/kernel/ioport.c | 43 |
1 files changed, 19 insertions, 24 deletions
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index f6158c4a3995..aa73b3b71e85 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -300,11 +300,10 @@ void __init sbus_fill_device_irq(struct sbus_dev *sdev) * Allocate a chunk of memory suitable for DMA. * Typically devices use them for control blocks. * CPU may access them without any explicit flushing. - * - * XXX Some clever people know that sdev is not used and supply NULL. Watch. */ -void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp) +void *sbus_alloc_consistent(struct device *dev, long len, u32 *dma_addrp) { + struct of_device *op = to_of_device(dev); unsigned long len_total = (len + PAGE_SIZE-1) & PAGE_MASK; unsigned long va; struct resource *res; @@ -341,10 +340,7 @@ void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp) if (mmu_map_dma_area(dma_addrp, va, res->start, len_total) != 0) goto err_noiommu; - /* Set the resource name, if known. */ - if (sdev) { - res->name = sdev->prom_name; - } + res->name = op->node->name; return (void *)(unsigned long)res->start; @@ -358,7 +354,7 @@ err_nopages: return NULL; } -void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba) +void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba) { struct resource *res; struct page *pgv; @@ -396,8 +392,10 @@ void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba) * CPU view of this memory may be inconsistent with * a device view and explicit flushing is necessary. */ -dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int direction) +dma_addr_t sbus_map_single(struct device *dev, void *va, size_t len, int direction) { + struct sbus_dev *sdev = to_sbus_device(dev); + /* XXX why are some lengths signed, others unsigned? */ if (len <= 0) { return 0; @@ -409,13 +407,16 @@ dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int dire return mmu_get_scsi_one(va, len, sdev->bus); } -void sbus_unmap_single(struct sbus_dev *sdev, dma_addr_t ba, size_t n, int direction) +void sbus_unmap_single(struct device *dev, dma_addr_t ba, size_t n, int direction) { + struct sbus_dev *sdev = to_sbus_device(dev); mmu_release_scsi_one(ba, n, sdev->bus); } -int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction) +int sbus_map_sg(struct device *dev, struct scatterlist *sg, int n, int direction) { + struct sbus_dev *sdev = to_sbus_device(dev); + mmu_get_scsi_sgl(sg, n, sdev->bus); /* @@ -425,16 +426,19 @@ int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direct return n; } -void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction) +void sbus_unmap_sg(struct device *dev, struct scatterlist *sg, int n, int direction) { + struct sbus_dev *sdev = to_sbus_device(dev); + mmu_release_scsi_sgl(sg, n, sdev->bus); } /* */ -void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, dma_addr_t ba, size_t size, int direction) +void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size, int direction) { #if 0 + struct sbus_dev *sdev = to_sbus_device(dev); unsigned long va; struct resource *res; @@ -452,9 +456,10 @@ void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, dma_addr_t ba, size_t s #endif } -void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, dma_addr_t ba, size_t size, int direction) +void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t size, int direction) { #if 0 + struct sbus_dev *sdev = to_sbus_device(dev); unsigned long va; struct resource *res; @@ -472,16 +477,6 @@ void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, dma_addr_t ba, size_ #endif } -void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction) -{ - printk("sbus_dma_sync_sg_for_cpu: not implemented yet\n"); -} - -void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction) -{ - printk("sbus_dma_sync_sg_for_device: not implemented yet\n"); -} - /* Support code for sbus_init(). */ /* * XXX This functions appears to be a distorted version of |