diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 48 |
1 files changed, 27 insertions, 21 deletions
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 f088ac585978..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 @@ -64,8 +64,10 @@ 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; enum amdgpu_dm_pipe_crc_source source = dm_parse_crc_source(src_name); @@ -80,29 +82,33 @@ int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name) return -EINVAL; } - /* When enabling CRC, we should also disable dithering. */ - if (source == AMDGPU_DM_PIPE_CRC_SOURCE_AUTO) { - if (dc_stream_configure_crc(stream_state->ctx->dc, - stream_state, - true, true)) { - crtc_state->crc_enabled = true; - dc_stream_set_dither_option(stream_state, - DITHER_OPTION_TRUN8); - } - else - return -EINVAL; - } else { - if (dc_stream_configure_crc(stream_state->ctx->dc, - stream_state, - false, false)) { - crtc_state->crc_enabled = false; - dc_stream_set_dither_option(stream_state, - DITHER_OPTION_DEFAULT); - } - else - return -EINVAL; + 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)) { + 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. + */ + if (!crtc_state->crc_enabled && enable) + drm_crtc_vblank_get(crtc); + else if (crtc_state->crc_enabled && !enable) + drm_crtc_vblank_put(crtc); + + crtc_state->crc_enabled = enable; + /* Reset crc_skipped on dm state */ crtc_state->crc_skip_count = 0; return 0; |