diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h index ed939600cdbe486c17b29093a8465804dda0f4a1..aa7df57755459e6ccfb0aaa3c4a2e720bba76233 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h @@ -198,7 +198,7 @@ struct dm_crtc_state { struct drm_crtc_state base; struct dc_stream_state *stream; - bool crc_first_skipped; + int crc_skip_count; bool crc_enabled; }; 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 55aa379cfcbef386c3800a7b4288b5765f02b57b..52f2c01349e38214c9bad2e3e639a69717828d0a 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 @@ -84,8 +84,8 @@ int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name, } *values_cnt = 3; - /* Reset crc_skipped flag on dm state */ - crtc_state->crc_first_skipped = false; + /* Reset crc_skipped on dm state */ + crtc_state->crc_skip_count = 0; return 0; } @@ -109,11 +109,11 @@ void amdgpu_dm_crtc_handle_crc_irq(struct drm_crtc *crtc) /* * Since flipping and crc enablement happen asynchronously, we - more * often than not - will be returning an 'uncooked' crc on first frame. - * Probably because hw isn't ready yet. Simply skip the first crc - * value. + * Probably because hw isn't ready yet. For added security, skip the + * first two CRC values. */ - if (!crtc_state->crc_first_skipped) { - crtc_state->crc_first_skipped = true; + if (crtc_state->crc_skip_count < 2) { + crtc_state->crc_skip_count += 1; return; }