From: "Leo (Sunpeng) Li" <[email protected]> If crc is disabled, early return when getting crc's. That way, we avoid reading extra registers within the pflip high irq.
Signed-off-by: Leo (Sunpeng) Li <[email protected]> Reviewed-by: Harry Wentland <[email protected]> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 1 + .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 34 +++++++++++++--------- 2 files changed, 21 insertions(+), 14 deletions(-) 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 996ab81140df..11ecb7c51d27 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h @@ -212,6 +212,7 @@ struct dm_crtc_state { struct dc_stream_state *stream; bool crc_first_skipped; + bool crc_enabled; }; #define to_dm_crtc_state(x) container_of(x, struct dm_crtc_state, base) 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 5768103803fe..e5fb53a56b73 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 @@ -51,7 +51,6 @@ int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name, { struct dm_crtc_state *crtc_state = to_dm_crtc_state(crtc->state); struct dc_stream_state *stream_state = crtc_state->stream; - bool ret; enum amdgpu_dm_pipe_crc_source source = dm_parse_crc_source(src_name); @@ -62,22 +61,25 @@ int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name, } if (source == AMDGPU_DM_PIPE_CRC_SOURCE_AUTO) { - ret = dc_stream_configure_crc(stream_state->ctx->dc, - stream_state, - true, true); + if (dc_stream_configure_crc(stream_state->ctx->dc, + stream_state, + true, true)) + crtc_state->crc_enabled = true; + else + return -EINVAL; } else { - ret = dc_stream_configure_crc(stream_state->ctx->dc, - stream_state, - false, false); + if (dc_stream_configure_crc(stream_state->ctx->dc, + stream_state, + false, false)) + crtc_state->crc_enabled = false; + else + return -EINVAL; } - if (ret) { - *values_cnt = 3; - /* Reset crc_skipped flag on dm state */ - crtc_state->crc_first_skipped = false; - return 0; - } - return -EINVAL; + *values_cnt = 3; + /* Reset crc_skipped flag on dm state */ + crtc_state->crc_first_skipped = false; + return 0; } /** @@ -93,6 +95,10 @@ void amdgpu_dm_crtc_handle_crc_irq(struct drm_crtc *crtc) struct dc_stream_state *stream_state = crtc_state->stream; uint32_t crcs[3]; + /* Early return if CRC capture is not enabled. */ + if (!crtc_state->crc_enabled) + return; + /* * Since flipping and crc enablement happen asynchronously, we - more * often than not - will be returning an 'uncooked' crc on first frame. -- 2.14.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
