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agp: Switch agp_{un,}map_page() to take struct page * argument

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Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Woodhouse 2009-07-29 08:39:26 +01:00
parent 56ec4c1e72
commit c2980d8c29
3 changed files with 17 additions and 18 deletions
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6
drivers/char/agp/agp.h
View file

@ -122,8 +122,8 @@ struct agp_bridge_driver {
int (*agp_type_to_mask_type) (struct agp_bridge_data *, int);
void (*chipset_flush)(struct agp_bridge_data *);
int (*agp_map_page)(void *addr, dma_addr_t *ret);
void (*agp_unmap_page)(void *addr, dma_addr_t dma);
int (*agp_map_page)(struct page *page, dma_addr_t *ret);
void (*agp_unmap_page)(struct page *page, dma_addr_t dma);
int (*agp_map_memory)(struct agp_memory *mem);
void (*agp_unmap_memory)(struct agp_memory *mem);
};
@ -139,7 +139,7 @@ struct agp_bridge_data {
u32 __iomem *gatt_table;
u32 *gatt_table_real;
unsigned long scratch_page;
unsigned long scratch_page_real;
struct page *scratch_page_page;
dma_addr_t scratch_page_dma;
unsigned long gart_bus_addr;
unsigned long gatt_bus_addr;

17
drivers/char/agp/backend.c
View file

@ -149,9 +149,9 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
return -ENOMEM;
}
bridge->scratch_page_real = phys_to_gart(page_to_phys(page));
bridge->scratch_page_page = page;
if (bridge->driver->agp_map_page) {
if (bridge->driver->agp_map_page(phys_to_virt(page_to_phys(page)),
if (bridge->driver->agp_map_page(page,
&bridge->scratch_page_dma)) {
dev_err(&bridge->dev->dev,
"unable to dma-map scratch page\n");
@ -205,13 +205,12 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
err_out:
if (bridge->driver->needs_scratch_page &&
bridge->driver->agp_unmap_page) {
void *va = gart_to_virt(bridge->scratch_page_real);
bridge->driver->agp_unmap_page(va, bridge->scratch_page_dma);
bridge->driver->agp_unmap_page(bridge->scratch_page_page,
bridge->scratch_page_dma);
}
err_out_nounmap:
if (bridge->driver->needs_scratch_page) {
void *va = gart_to_virt(bridge->scratch_page_real);
void *va = page_address(bridge->scratch_page_page);
bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_UNMAP);
bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_FREE);
@ -238,11 +237,11 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge)
if (bridge->driver->agp_destroy_page &&
bridge->driver->needs_scratch_page) {
void *va = gart_to_virt(bridge->scratch_page_real);
void *va = page_address(bridge->scratch_page_page);
if (bridge->driver->agp_unmap_page)
bridge->driver->agp_unmap_page(va,
bridge->scratch_page_dma);
bridge->driver->agp_unmap_page(bridge->scratch_page_page,
bridge->scratch_page_dma);
bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_UNMAP);
bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_FREE);

12
drivers/char/agp/intel-agp.c
View file

@ -181,19 +181,19 @@ static struct _intel_private {
} intel_private;
#ifdef USE_PCI_DMA_API
static int intel_agp_map_page(void *addr, dma_addr_t *ret)
static int intel_agp_map_page(struct page *page, dma_addr_t *ret)
{
*ret = pci_map_single(intel_private.pcidev, addr,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
*ret = pci_map_page(intel_private.pcidev, page, 0,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
if (pci_dma_mapping_error(intel_private.pcidev, *ret))
return -EINVAL;
return 0;
}
static void intel_agp_unmap_page(void *addr, dma_addr_t dma)
static void intel_agp_unmap_page(struct page *page, dma_addr_t dma)
{
pci_unmap_single(intel_private.pcidev, dma,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
pci_unmap_page(intel_private.pcidev, dma,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
}
static int intel_agp_map_memory(struct agp_memory *mem)