x86, ia64: convert to use generic dma_map_ops struct
This converts X86 and IA64 to use include/linux/dma-mapping.h.
It's a bit large but pretty boring. The major change for X86 is
converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping
operations. The major changes for IA64 is using map_page and
unmap_page instead of map_single and unmap_single.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index efdd694..9c788f9 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -10,7 +10,6 @@
*/
#include <linux/module.h>
-#include <linux/dma-attrs.h>
#include <linux/dma-mapping.h>
#include <asm/dma.h>
#include <asm/sn/intr.h>
@@ -171,10 +170,12 @@
* TODO: simplify our interface;
* figure out how to save dmamap handle so can use two step.
*/
-static dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr,
- size_t size, int direction,
- struct dma_attrs *attrs)
+static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
+ void *cpu_addr = page_address(page) + offset;
dma_addr_t dma_addr;
unsigned long phys_addr;
struct pci_dev *pdev = to_pci_dev(dev);
@@ -212,20 +213,20 @@
* by @dma_handle into the coherence domain. On SN, we're always cache
* coherent, so we just need to free any ATEs associated with this mapping.
*/
-static void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
- size_t size, int direction,
- struct dma_attrs *attrs)
+static void sn_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
- provider->dma_unmap(pdev, dma_addr, direction);
+ provider->dma_unmap(pdev, dma_addr, dir);
}
/**
- * sn_dma_unmap_sg_attrs - unmap a DMA scatterlist
+ * sn_dma_unmap_sg - unmap a DMA scatterlist
* @dev: device to unmap
* @sg: scatterlist to unmap
* @nhwentries: number of scatterlist entries
@@ -234,9 +235,9 @@
*
* Unmap a set of streaming mode DMA translations.
*/
-static void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
- int nhwentries, int direction,
- struct dma_attrs *attrs)
+static void sn_dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
+ int nhwentries, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
int i;
struct pci_dev *pdev = to_pci_dev(dev);
@@ -246,14 +247,14 @@
BUG_ON(dev->bus != &pci_bus_type);
for_each_sg(sgl, sg, nhwentries, i) {
- provider->dma_unmap(pdev, sg->dma_address, direction);
+ provider->dma_unmap(pdev, sg->dma_address, dir);
sg->dma_address = (dma_addr_t) NULL;
sg->dma_length = 0;
}
}
/**
- * sn_dma_map_sg_attrs - map a scatterlist for DMA
+ * sn_dma_map_sg - map a scatterlist for DMA
* @dev: device to map for
* @sg: scatterlist to map
* @nhwentries: number of entries
@@ -267,8 +268,9 @@
*
* Maps each entry of @sg for DMA.
*/
-static int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
- int nhwentries, int direction, struct dma_attrs *attrs)
+static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
+ int nhwentries, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
unsigned long phys_addr;
struct scatterlist *saved_sg = sgl, *sg;
@@ -305,8 +307,7 @@
* Free any successfully allocated entries.
*/
if (i > 0)
- sn_dma_unmap_sg_attrs(dev, saved_sg, i,
- direction, attrs);
+ sn_dma_unmap_sg(dev, saved_sg, i, dir, attrs);
return 0;
}
@@ -317,25 +318,26 @@
}
static void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
- size_t size, int direction)
+ size_t size, enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
static void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
- size_t size, int direction)
+ size_t size,
+ enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
static void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
- int nelems, int direction)
+ int nelems, enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
static void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
- int nelems, int direction)
+ int nelems, enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
@@ -455,19 +457,19 @@
return ret;
}
-static struct dma_mapping_ops sn_dma_ops = {
+static struct dma_map_ops sn_dma_ops = {
.alloc_coherent = sn_dma_alloc_coherent,
.free_coherent = sn_dma_free_coherent,
- .map_single_attrs = sn_dma_map_single_attrs,
- .unmap_single_attrs = sn_dma_unmap_single_attrs,
- .map_sg_attrs = sn_dma_map_sg_attrs,
- .unmap_sg_attrs = sn_dma_unmap_sg_attrs,
+ .map_page = sn_dma_map_page,
+ .unmap_page = sn_dma_unmap_page,
+ .map_sg = sn_dma_map_sg,
+ .unmap_sg = sn_dma_unmap_sg,
.sync_single_for_cpu = sn_dma_sync_single_for_cpu,
.sync_sg_for_cpu = sn_dma_sync_sg_for_cpu,
.sync_single_for_device = sn_dma_sync_single_for_device,
.sync_sg_for_device = sn_dma_sync_sg_for_device,
.mapping_error = sn_dma_mapping_error,
- .dma_supported_op = sn_dma_supported,
+ .dma_supported = sn_dma_supported,
};
void sn_dma_init(void)