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| author | Lang Yu <Lang.Yu@amd.com> | 2021-06-22 19:23:34 +0300 |
|---|---|---|
| committer | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2021-06-23 21:59:39 +0300 |
| commit | ae1bef72c20f9231898e2f5595751a2635d49db8 (patch) | |
| tree | 8e7361ebdcce7284e69f78c993bc82594fb5fdcd /drivers/gpu/drm/ttm | |
| parent | 403797925768d9fa870f5b1ebcd20016b397083b (diff) | |
| download | linux-ae1bef72c20f9231898e2f5595751a2635d49db8.tar.xz | |
drm/ttm: add TTM_PL_FLAG_TEMPORARY flag v3
Sometimes drivers need to use bounce buffers to evict BOs. While those reside
in some domain they are not necessarily suitable for CS.
Add a flag so that drivers can note that a bounce buffers needs to be
reallocated during validation.
v2: add detailed comments
v3 (chk): merge commits and rework commit message
Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210622162339.761651-1-andrey.grodzovsky@amd.com
Diffstat (limited to 'drivers/gpu/drm/ttm')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 6c78149360c4..5a2dc712c632 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -918,6 +918,9 @@ static bool ttm_bo_places_compat(const struct ttm_place *places, { unsigned i; + if (mem->placement & TTM_PL_FLAG_TEMPORARY) + return false; + for (i = 0; i < num_placement; i++) { const struct ttm_place *heap = &places[i]; |