diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2019-08-20 10:16:14 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-08-21 22:18:25 -0500 |
| commit | 57638021b711de052df781001bd6fd35804c3646 (patch) | |
| tree | 2a3834fc70bd0cc95f5b9e102a6bea45bae964fc /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h | |
| parent | df61eae4b87ac4dfb9c4fceea2f223a29466507b (diff) | |
| download | linux-57638021b711de052df781001bd6fd35804c3646.tar.gz linux-57638021b711de052df781001bd6fd35804c3646.tar.bz2 linux-57638021b711de052df781001bd6fd35804c3646.zip | |
drm/amd/display: Split out DC programming for CRC capture
[Why]
Calling amdgpu_dm_crtc_set_crc_source in amdgpu_dm directly has the
consequence of adding additional vblank references or starting DPRX
CRC capture more than once without calling stop first.
Vblank references for CRC capture should be managed entirely by opening
and closing the CRC file from userspace.
Stream state also shouldn't be required on the CRC so we can close the
file after the CRTC has been disabled.
[How]
Do DC programming required for configuring CRC capture separately from
setting the source. Whenever we re-enable or reset a CRC this
programming should be reapplied.
CRC vblank reference handling in amdgpu_dm can be entirely dropped after
this.
Stream state also no longer needs to be required since we can just defer
the programming to when the stream is actually enabled.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: David Francis <David.Francis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h index 14de7301c28d..f7d731797d3f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h @@ -26,6 +26,9 @@ #ifndef AMD_DAL_DEV_AMDGPU_DM_AMDGPU_DM_CRC_H_ #define AMD_DAL_DEV_AMDGPU_DM_AMDGPU_DM_CRC_H_ +struct drm_crtc; +struct dm_crtc_state; + enum amdgpu_dm_pipe_crc_source { AMDGPU_DM_PIPE_CRC_SOURCE_NONE = 0, AMDGPU_DM_PIPE_CRC_SOURCE_CRTC, @@ -44,6 +47,9 @@ static inline bool amdgpu_dm_is_valid_crc_source(enum amdgpu_dm_pipe_crc_source /* amdgpu_dm_crc.c */ #ifdef CONFIG_DEBUG_FS +int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc, + struct dm_crtc_state *dm_crtc_state, + enum amdgpu_dm_pipe_crc_source source); int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name); int amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc, const char *src_name, |