This is a note to let you know that I've just added the patch titled drm/amd/display: Remove MPC gamut remap logic for DCN30 to the 5.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-amd-display-remove-mpc-gamut-remap-logic-for-dcn30.patch and it can be found in the queue-5.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From beb6b2f97e0a02164c7f0df6e08c49219cfc2b80 Mon Sep 17 00:00:00 2001 From: Dillon Varone <dillon.varone@xxxxxxx> Date: Thu, 4 Mar 2021 17:39:10 -0500 Subject: drm/amd/display: Remove MPC gamut remap logic for DCN30 From: Dillon Varone <dillon.varone@xxxxxxx> commit beb6b2f97e0a02164c7f0df6e08c49219cfc2b80 upstream. [Why?] Should only reroute gamut remap to mpc unless 3D LUT is not used and all planes are using the same src->dest. [How?] Remove DCN30 specific logic for rerouting gamut remap to mpc. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1513 Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx> Signed-off-by: Dillon Varone <dillon.varone@xxxxxxx> Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@xxxxxxx> Acked-by: Aric Cyr <Aric.Cyr@xxxxxxx> Acked-by: Solomon Chiu <solomon.chiu@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 34 +-------------------- 1 file changed, 2 insertions(+), 32 deletions(-) --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -1501,38 +1501,8 @@ static void dcn20_update_dchubp_dpp( if (pipe_ctx->update_flags.bits.enable || pipe_ctx->update_flags.bits.opp_changed || pipe_ctx->stream->update_flags.bits.gamut_remap || pipe_ctx->stream->update_flags.bits.out_csc) { - struct mpc *mpc = pipe_ctx->stream_res.opp->ctx->dc->res_pool->mpc; - - if (mpc->funcs->set_gamut_remap) { - int i; - int mpcc_id = hubp->inst; - struct mpc_grph_gamut_adjustment adjust; - bool enable_remap_dpp = false; - - memset(&adjust, 0, sizeof(adjust)); - adjust.gamut_adjust_type = GRAPHICS_GAMUT_ADJUST_TYPE_BYPASS; - - /* save the enablement of gamut remap for dpp */ - enable_remap_dpp = pipe_ctx->stream->gamut_remap_matrix.enable_remap; - - /* force bypass gamut remap for dpp/cm */ - pipe_ctx->stream->gamut_remap_matrix.enable_remap = false; - dc->hwss.program_gamut_remap(pipe_ctx); - - /* restore gamut remap flag and use this remap into mpc */ - pipe_ctx->stream->gamut_remap_matrix.enable_remap = enable_remap_dpp; - - /* build remap matrix for top plane if enabled */ - if (enable_remap_dpp && pipe_ctx->top_pipe == NULL) { - adjust.gamut_adjust_type = GRAPHICS_GAMUT_ADJUST_TYPE_SW; - for (i = 0; i < CSC_TEMPERATURE_MATRIX_SIZE; i++) - adjust.temperature_matrix[i] = - pipe_ctx->stream->gamut_remap_matrix.matrix[i]; - } - mpc->funcs->set_gamut_remap(mpc, mpcc_id, &adjust); - } else - /* dpp/cm gamut remap*/ - dc->hwss.program_gamut_remap(pipe_ctx); + /* dpp/cm gamut remap*/ + dc->hwss.program_gamut_remap(pipe_ctx); /*call the dcn2 method which uses mpc csc*/ dc->hwss.program_output_csc(dc, Patches currently in stable-queue which might be from dillon.varone@xxxxxxx are queue-5.11/drm-amd-display-remove-mpc-gamut-remap-logic-for-dcn30.patch