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authorEric Yang <Eric.Yang2@amd.com>2017-07-20 16:17:17 -0400
committerAlex Deucher <alexander.deucher@amd.com>2017-09-26 18:15:26 -0400
commitaa9850705fc05b7e7f44558e30705ac54579e724 (patch)
tree8b32e07b749c742b143443910ec759bfae3222e2 /drivers/gpu
parent7f10f3c2a761ddf3dc18be45d4ccf60db5fe10cf (diff)
downloadlinux-aa9850705fc05b7e7f44558e30705ac54579e724.tar.bz2
drm/amd/display: fix locking in apply_ctx_for_surface
Signed-off-by: Eric Yang <Eric.Yang2@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index d607ca94bd13..6db78d9f8e3b 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1696,8 +1696,14 @@ static void dcn10_apply_ctx_for_surface(
*/
if (pipe_ctx->surface && !old_pipe_ctx->surface) {
- if (pipe_ctx->mpcc->opp_id != 0xf && pipe_ctx->tg->inst == be_idx)
+ if (pipe_ctx->mpcc->opp_id != 0xf && pipe_ctx->tg->inst == be_idx) {
dcn10_power_down_fe(dc, pipe_ctx->pipe_idx);
+ /*
+ * power down fe will unlock when calling reset, need
+ * to lock it back here. Messy, need rework.
+ */
+ pipe_ctx->tg->funcs->lock(pipe_ctx->tg);
+ }
}