diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2019-01-15 10:33:58 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-01-28 11:44:03 -0500 |
| commit | 43a6a02eb3558d1f3a0618f9bf02328662fb06e3 (patch) | |
| tree | 5c59d716008dbd2e10441a6a42bf7214ea39e11d /drivers/gpu | |
| parent | 428da2bdb05d76c48d0bd8fbfa2e4c102685be08 (diff) | |
drm/amd/display: Re-enable CRC capture following modeset
[Why]
During any modeset the CRTC stream is removed and a new stream is added.
This new stream doesn't carry over CRC capture state if it was
previously set.
[How]
Re-program the stream for CRC capture. The existing DRM callback can
be re-used here for the most part - the only modification needed is
additional locking now that it's called from within commit tail.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 8 |
2 files changed, 17 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index b0bdf5ceed0e..a247cb19077c 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4923,10 +4923,13 @@ static int amdgpu_dm_atomic_commit(struct drm_device *dev, if (drm_atomic_crtc_needs_modeset(new_crtc_state) && dm_old_crtc_state->stream) { /* - * CRC capture was enabled but not disabled. - * Release the vblank reference. + * If the stream is removed and CRC capture was + * enabled on the CRTC the extra vblank reference + * needs to be dropped since CRC capture will be + * disabled. */ - if (dm_new_crtc_state->crc_enabled) { + if (!dm_new_crtc_state->stream + && dm_new_crtc_state->crc_enabled) { drm_crtc_vblank_put(crtc); dm_new_crtc_state->crc_enabled = false; } @@ -5164,6 +5167,10 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) continue; manage_dm_interrupts(adev, acrtc, true); + + /* The stream has changed so CRC capture needs to re-enabled. */ + if (dm_new_crtc_state->crc_enabled) + amdgpu_dm_crtc_set_crc_source(crtc, "auto"); } /* update planes when needed per crtc*/ diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c index 26b651148c67..a10e3a50d9ef 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c @@ -64,6 +64,7 @@ amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc, const char *src_name, int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name) { + struct amdgpu_device *adev = crtc->dev->dev_private; struct dm_crtc_state *crtc_state = to_dm_crtc_state(crtc->state); struct dc_stream_state *stream_state = crtc_state->stream; bool enable; @@ -83,15 +84,20 @@ int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name) enable = (source == AMDGPU_DM_PIPE_CRC_SOURCE_AUTO); + mutex_lock(&adev->dm.dc_lock); if (!dc_stream_configure_crc(stream_state->ctx->dc, stream_state, - enable, enable)) + enable, enable)) { + mutex_unlock(&adev->dm.dc_lock); return -EINVAL; + } /* When enabling CRC, we should also disable dithering. */ dc_stream_set_dither_option(stream_state, enable ? DITHER_OPTION_TRUN8 : DITHER_OPTION_DEFAULT); + mutex_unlock(&adev->dm.dc_lock); + /* * Reading the CRC requires the vblank interrupt handler to be * enabled. Keep a reference until CRC capture stops. |