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authorChristian König <christian.koenig@amd.com>2020-10-08 13:57:32 +0300
committerChristian König <christian.koenig@amd.com>2020-11-30 17:00:45 +0300
commitc67e62790f5c156705fb162da840c6d89d0af6e0 (patch)
tree019349d0d65f0d149288c29f23c89502667c0e86 /drivers/gpu/drm/radeon
parent18f7608a67fca8b8305b3557e2c00bca54785acd (diff)
downloadlinux-c67e62790f5c156705fb162da840c6d89d0af6e0.tar.xz
drm/prime: split array import functions v4
Mapping the imported pages of a DMA-buf into an userspace process doesn't work as expected. But we have reoccurring requests on this approach, so split the functions for this and document that dma_buf_mmap() needs to be used instead. v2: split it into two functions v3: rebased on latest changes v4: update commit message a bit Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/403838/
Diffstat (limited to 'drivers/gpu/drm/radeon')
-rw-r--r--drivers/gpu/drm/radeon/radeon_ttm.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 917419bf1578..f1f7adb67c8e 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -395,8 +395,8 @@ static int radeon_ttm_tt_pin_userptr(struct ttm_bo_device *bdev, struct ttm_tt *
if (r)
goto release_sg;
- drm_prime_sg_to_page_addr_arrays(ttm->sg, NULL, gtt->ttm.dma_address,
- ttm->num_pages);
+ drm_prime_sg_to_dma_addr_array(ttm->sg, gtt->ttm.dma_address,
+ ttm->num_pages);
return 0;
@@ -574,9 +574,8 @@ static int radeon_ttm_tt_populate(struct ttm_bo_device *bdev,
}
if (slave && ttm->sg) {
- drm_prime_sg_to_page_addr_arrays(ttm->sg, NULL,
- gtt->ttm.dma_address,
- ttm->num_pages);
+ drm_prime_sg_to_dma_addr_array(ttm->sg, gtt->ttm.dma_address,
+ ttm->num_pages);
return 0;
}