diff options
| author | Wesley Chalmers <Wesley.Chalmers@amd.com> | 2019-02-06 19:19:08 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-03-05 21:09:33 +0100 |
| commit | 128c075ad4fc4139f47bcd38a5115573394a0e34 (patch) | |
| tree | b9381864cfd4fccffd93e019de90688c30a79ad0 | |
| parent | drm/amd/display: Fix exception from AUX acquire failure (diff) | |
| download | linux-128c075ad4fc4139f47bcd38a5115573394a0e34.tar.xz linux-128c075ad4fc4139f47bcd38a5115573394a0e34.zip | |
drm/amd/display: Set flip pending for pipe split
[WHY]
When doing split pipe, if one pipe is pending on flip, the entire
plane's status should be flip pending, otherwise corruption can occur
when OS writes to a surface prematurely.
[HOW]
Clear the flip pending bit before checking pipes, then OR the flip
pending bits from all pipes together to create the flip pending status
of the entire plane.
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Eryk Brol <Eryk.Brol@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_surface.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 2 |
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c index ee6bd50f60b8..a5e86f9b148f 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c @@ -119,6 +119,19 @@ const struct dc_plane_status *dc_plane_get_status( if (core_dc->current_state == NULL) return NULL; + /* Find the current plane state and set its pending bit to false */ + for (i = 0; i < core_dc->res_pool->pipe_count; i++) { + struct pipe_ctx *pipe_ctx = + &core_dc->current_state->res_ctx.pipe_ctx[i]; + + if (pipe_ctx->plane_state != plane_state) + continue; + + pipe_ctx->plane_state->status.is_flip_pending = false; + + break; + } + for (i = 0; i < core_dc->res_pool->pipe_count; i++) { struct pipe_ctx *pipe_ctx = &core_dc->current_state->res_ctx.pipe_ctx[i]; 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 7ba3e09ad3c9..18cc5d90b4d4 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 @@ -2689,7 +2689,7 @@ static void dcn10_update_pending_status(struct pipe_ctx *pipe_ctx) flip_pending = pipe_ctx->plane_res.hubp->funcs->hubp_is_flip_pending( pipe_ctx->plane_res.hubp); - plane_state->status.is_flip_pending = flip_pending; + plane_state->status.is_flip_pending = plane_state->status.is_flip_pending || flip_pending; if (!flip_pending) plane_state->status.current_address = plane_state->status.requested_address; |