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| author | Christian König <christian.koenig@amd.com> | 2016-07-21 12:18:19 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-07-29 14:37:04 -0400 |
| commit | 2ff2bf1e5cd731e26293e08404f06bc8314480dc (patch) | |
| tree | f0a09c5925802e86f24434b1c20b8fa743b0ed15 | |
| parent | bbec97aae660adafa5208c5defc54e3cbbe6b129 (diff) | |
drm/ttm: partial revert "cleanup ttm_tt_(unbind|destroy)" v3
We still need to unbind explicitly during a move.
This partial reverts commit ff20caa0bcbfef9f7686f8d1868a3b990921afd6.
v2: remove unnecessary check and unused variable
v3: fix typo in commit message
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_util.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 19 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 9 |
3 files changed, 22 insertions, 7 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 4da0e784f9e7..2df602a35f92 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -53,6 +53,7 @@ int ttm_bo_move_ttm(struct ttm_buffer_object *bo, int ret; if (old_mem->mem_type != TTM_PL_SYSTEM) { + ttm_tt_unbind(ttm); ttm_bo_free_old_node(bo); ttm_flag_masked(&old_mem->placement, TTM_PL_FLAG_SYSTEM, TTM_PL_MASK_MEM); diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index d28d4333dcce..526e5a78eea5 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -166,16 +166,10 @@ EXPORT_SYMBOL(ttm_tt_set_placement_caching); void ttm_tt_destroy(struct ttm_tt *ttm) { - int ret; - if (ttm == NULL) return; - if (ttm->state == tt_bound) { - ret = ttm->func->unbind(ttm); - BUG_ON(ret); - ttm->state = tt_unbound; - } + ttm_tt_unbind(ttm); if (ttm->state == tt_unbound) ttm_tt_unpopulate(ttm); @@ -255,6 +249,17 @@ void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma) } EXPORT_SYMBOL(ttm_dma_tt_fini); +void ttm_tt_unbind(struct ttm_tt *ttm) +{ + int ret; + + if (ttm->state == tt_bound) { + ret = ttm->func->unbind(ttm); + BUG_ON(ret); + ttm->state = tt_unbound; + } +} + int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem) { int ret = 0; diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index e2ebe6666e2b..4348d6d5877a 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -628,6 +628,15 @@ extern int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem); extern void ttm_tt_destroy(struct ttm_tt *ttm); /** + * ttm_ttm_unbind: + * + * @ttm: The struct ttm_tt. + * + * Unbind a struct ttm_tt. + */ +extern void ttm_tt_unbind(struct ttm_tt *ttm); + +/** * ttm_tt_swapin: * * @ttm: The struct ttm_tt. |