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>
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index f6158c4..aa73b3b 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -300,11 +300,10 @@
* 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 @@
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 @@
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 @@
* 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 @@
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 @@
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 @@
#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 @@
#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