diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-05-10 18:33:13 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-05-23 10:47:11 +0100 |
| commit | 40f5cf996991577ec65d36cd3599cca7ec5d87d3 (patch) | |
| tree | 903797b4e09b9444450fb35b4101c1fd9b8530b0 /drivers/gpu/drm/radeon/radeon_ttm.c | |
| parent | 1286ff7397737e407cdd8e5cd574318db177ba1f (diff) | |
| download | linux-40f5cf996991577ec65d36cd3599cca7ec5d87d3.tar.gz linux-40f5cf996991577ec65d36cd3599cca7ec5d87d3.tar.bz2 linux-40f5cf996991577ec65d36cd3599cca7ec5d87d3.zip | |
drm/radeon: add PRIME support (v2)
This adds prime->fd and fd->prime support to radeon.
It passes the sg object to ttm and then populates
the gart entries using it.
Compile tested only.
v2: stub kmap + use new helpers + add reimporting
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 0f6aee8aa152..c94a2257761f 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -611,10 +611,18 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm) struct radeon_ttm_tt *gtt = (void *)ttm; unsigned i; int r; + bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); if (ttm->state != tt_unpopulated) return 0; + if (slave && ttm->sg) { + drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages, + gtt->ttm.dma_address, ttm->num_pages); + ttm->state = tt_unbound; + return 0; + } + rdev = radeon_get_rdev(ttm->bdev); #if __OS_HAS_AGP if (rdev->flags & RADEON_IS_AGP) { @@ -655,6 +663,10 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm) struct radeon_device *rdev; struct radeon_ttm_tt *gtt = (void *)ttm; unsigned i; + bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); + + if (slave) + return; rdev = radeon_get_rdev(ttm->bdev); #if __OS_HAS_AGP @@ -726,8 +738,8 @@ int radeon_ttm_init(struct radeon_device *rdev) return r; } r = radeon_bo_create(rdev, 256 * 1024, PAGE_SIZE, true, - RADEON_GEM_DOMAIN_VRAM, - &rdev->stollen_vga_memory); + RADEON_GEM_DOMAIN_VRAM, + NULL, &rdev->stollen_vga_memory); if (r) { return r; } |