diff options
| author | Christian König <christian.koenig@amd.com> | 2022-05-10 12:52:05 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-05-11 10:01:55 +0200 |
| commit | 5e3f1e7729ec7a99e145e9d8ed58963d86cdfb98 (patch) | |
| tree | 589f3d9892b1309dadb33cb312c343194759ae3f | |
| parent | 047de3f17a8321065c32ee3f6272a6dba16d6bcf (diff) | |
drm/amdgpu: fix start calculation in amdgpu_vram_mgr_new
We still need to calculate a virtual start address for the resource to
aid checking of it is visible or not. Only matters on small BAR systems,
but better save than sorry.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220510113649.879821-1-christian.koenig@amd.com
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index 49e4092f447f..51d9d3a4456c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -496,16 +496,22 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, list_splice_tail(trim_list, &vres->blocks); } - list_for_each_entry(block, &vres->blocks, link) - vis_usage += amdgpu_vram_mgr_vis_size(adev, block); + vres->base.start = 0; + list_for_each_entry(block, &vres->blocks, link) { + unsigned long start; - block = amdgpu_vram_mgr_first_block(&vres->blocks); - if (!block) { - r = -EINVAL; - goto error_fini; - } + start = amdgpu_vram_mgr_block_start(block) + + amdgpu_vram_mgr_block_size(block); + start >>= PAGE_SHIFT; - vres->base.start = amdgpu_vram_mgr_block_start(block) >> PAGE_SHIFT; + if (start > vres->base.num_pages) + start -= vres->base.num_pages; + else + start = 0; + vres->base.start = max(vres->base.start, start); + + vis_usage += amdgpu_vram_mgr_vis_size(adev, block); + } if (amdgpu_is_vram_mgr_blocks_contiguous(&vres->blocks)) vres->base.placement |= TTM_PL_FLAG_CONTIGUOUS; |