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ttm: Expand (*populate) to support an array of DMA addresses. 

We pass in the array of ttm pages to be populated in the GART/MM
of the card (or AGP). Patch titled: "ttm: Utilize the DMA API for
pages that have TTM_PAGE_FLAG_DMA32 set." uses the DMA API to make
those pages have a proper DMA addresses (in the situation where
page_to_phys or virt_to_phys do not give use the DMA (bus) address).

Since we are using the DMA API on those pages, we should pass in the
DMA address to this function so it can save it in its proper fields
(later patches use it).

[v2: Added reviewed-by tag]

Reviewed-by: Thomas Hellstrom <thellstrom@shipmail.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Ian Campbell <ian.campbell@citrix.com>
This commit is contained in:
Konrad Rzeszutek Wilk 2010-12-02 10:24:13 -05:00
parent 69a07f0b11
commit 27e8b23794
6 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/nouveau/nouveau_sgdma.c
View File

@ -20,7 +20,8 @@ struct nouveau_sgdma_be {
static int
nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages,
struct page **pages, struct page *dummy_read_page)
struct page **pages, struct page *dummy_read_page,
dma_addr_t *dma_addrs)
{
struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
struct drm_device *dev = nvbe->dev;

3
drivers/gpu/drm/radeon/radeon_ttm.c
View File

@ -655,7 +655,8 @@ struct radeon_ttm_backend {
static int radeon_ttm_backend_populate(struct ttm_backend *backend,
unsigned long num_pages,
struct page **pages,
struct page *dummy_read_page)
struct page *dummy_read_page,
dma_addr_t *dma_addrs)
{
struct radeon_ttm_backend *gtt;

3
drivers/gpu/drm/ttm/ttm_agp_backend.c
View File

@ -47,7 +47,8 @@ struct ttm_agp_backend {
static int ttm_agp_populate(struct ttm_backend *backend,
unsigned long num_pages, struct page **pages,
struct page *dummy_read_page)
struct page *dummy_read_page,
dma_addr_t *dma_addrs)
{
struct ttm_agp_backend *agp_be =
container_of(backend, struct ttm_agp_backend, backend);

2
drivers/gpu/drm/ttm/ttm_tt.c
View File

@ -169,7 +169,7 @@ int ttm_tt_populate(struct ttm_tt *ttm)
}
be->func->populate(be, ttm->num_pages, ttm->pages,
ttm->dummy_read_page);
ttm->dummy_read_page, ttm->dma_address);
ttm->state = tt_unbound;
return 0;
}

3
drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
View File

@ -102,7 +102,8 @@ struct vmw_ttm_backend {
static int vmw_ttm_populate(struct ttm_backend *backend,
unsigned long num_pages, struct page **pages,
struct page *dummy_read_page)
struct page *dummy_read_page,
dma_addr_t *dma_addrs)
{
struct vmw_ttm_backend *vmw_be =
container_of(backend, struct vmw_ttm_backend, backend);

4
include/drm/ttm/ttm_bo_driver.h
View File

@ -50,13 +50,15 @@ struct ttm_backend_func {
* @pages: Array of pointers to ttm pages.
* @dummy_read_page: Page to be used instead of NULL pages in the
* array @pages.
* @dma_addrs: Array of DMA (bus) address of the ttm pages.
*
* Populate the backend with ttm pages. Depending on the backend,
* it may or may not copy the @pages array.
*/
int (*populate) (struct ttm_backend *backend,
unsigned long num_pages, struct page **pages,
struct page *dummy_read_page);
struct page *dummy_read_page,
dma_addr_t *dma_addrs);
/**
* struct ttm_backend_func member clear
*