diff options
| author | Chunming Zhou <david1.zhou@amd.com> | 2018-02-09 10:44:09 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-13 13:33:32 -0500 |
| commit | fd5fd480dd8fe4910546e7b080b3ae345e57fe9f (patch) | |
| tree | 3eff145418a91d1fd03a226763c122dee882bb15 /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | 82626363a217d79128c447ab296777b461e9f050 (diff) | |
drm/amdgpu: only enable swiotlb alloc when need v2
get the max io mapping address of system memory to see if it is over
our card accessing range.
v2: move checking later
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180209024410.1469-2-david1.zhou@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index e4bb435e614b..d897c4c61a01 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1018,7 +1018,7 @@ static int amdgpu_ttm_tt_populate(struct ttm_tt *ttm, } #ifdef CONFIG_SWIOTLB - if (swiotlb_nr_tbl()) { + if (adev->need_swiotlb && swiotlb_nr_tbl()) { return ttm_dma_populate(>t->ttm, adev->dev, ctx); } #endif @@ -1045,7 +1045,7 @@ static void amdgpu_ttm_tt_unpopulate(struct ttm_tt *ttm) adev = amdgpu_ttm_adev(ttm->bdev); #ifdef CONFIG_SWIOTLB - if (swiotlb_nr_tbl()) { + if (adev->need_swiotlb && swiotlb_nr_tbl()) { ttm_dma_unpopulate(>t->ttm, adev->dev); return; } @@ -2010,7 +2010,7 @@ static int amdgpu_ttm_debugfs_init(struct amdgpu_device *adev) count = ARRAY_SIZE(amdgpu_ttm_debugfs_list); #ifdef CONFIG_SWIOTLB - if (!swiotlb_nr_tbl()) + if (!(adev->need_swiotlb && swiotlb_nr_tbl())) --count; #endif |