The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 020fccbe8fe7552e57804bba0c7578d227f561c2 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024081257-viewing-accuracy-5a4b@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:

020fccbe8fe7 ("drm/amd/display: Make DML2.1 P-State method force per stream") 00c391102abc ("drm/amd/display: Add misc DC changes for DCN401") da87132f641e ("drm/amd/display: Add some DCN401 reg name to macro definitions") 70839da63605 ("drm/amd/display: Add new DCN401 sources") ef319dff5475 ("drm/amd/display: add support for chroma offset") a41aa6a7d0a6 ("drm/amd/display: Add comments to improve the code readability") 5324e2b205a2 ("drm/amd/display: Add driver support for future FAMS versions") f3736c0d979a ("drm/amd/display: Add code comments clock and encode code") 8b2cb32cf0c6 ("drm/amd/display: FEC overhead should be checked once for mst slot nums") 4df96ba66760 ("drm/amd/display: Add timing pixel encoding for mst mode validation") 2dbe9c2b2685 ("drm/amd/display: add DCN 351 version for microcode load") 1c5c36530a57 ("drm/amd/display: Set DCN351 BB and IP the same as DCN35") 5034b935f62a ("drm/amd/display: Modify DHCUB waterwark structures and functions") 9d43241953f7 ("drm/amd/display: Refactor DML2 interfaces") 8cffa89bd5e2 ("drm/amd/display: Expand DML2 callbacks") 2d5bb791e24f ("drm/amd/display: Implement update_planes_and_stream_v3 sequence") 88867807564e ("drm/amd/display: Refactor DPP into a component directory") eed4edda910f ("drm/amd/display: Support long vblank feature") caef6c453cf2 ("drm/amd/display: Add DML2 folder to include path") 2d7f3d1a5866 ("drm/amd/display: Implement wait_for_odm_update_pending_complete")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 020fccbe8fe7552e57804bba0c7578d227f561c2 Mon Sep 17 00:00:00 2001 From: Dillon Varone dillon.varone@amd.com Date: Thu, 13 Jun 2024 12:08:16 -0400 Subject: [PATCH] drm/amd/display: Make DML2.1 P-State method force per stream

[WHY & HOW] Currently the force only works for a single display, make it so it can be forced per stream.

Reviewed-by: Alvin Lee alvin.lee2@amd.com Cc: Mario Limonciello mario.limonciello@amd.com Cc: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Alex Hung alex.hung@amd.com Signed-off-by: Dillon Varone dillon.varone@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index d0d1af451b64..e0334b573f2d 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -1038,7 +1038,7 @@ struct dc_debug_options { bool force_chroma_subsampling_1tap; bool disable_422_left_edge_pixel; bool dml21_force_pstate_method; - uint32_t dml21_force_pstate_method_value; + uint32_t dml21_force_pstate_method_values[MAX_PIPES]; uint32_t dml21_disable_pstate_method_mask; union dmub_fams2_global_feature_config fams2_config; bool enable_legacy_clock_update; diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c index d5ead0205053..06387b8b0aee 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c @@ -1000,7 +1000,7 @@ bool dml21_map_dc_state_into_dml_display_cfg(const struct dc *in_dc, struct dc_s /* apply forced pstate policy */ if (dml_ctx->config.pmo.force_pstate_method_enable) { dml_dispcfg->plane_descriptors[disp_cfg_plane_location].overrides.uclk_pstate_change_strategy = - dml21_force_pstate_method_to_uclk_state_change_strategy(dml_ctx->config.pmo.force_pstate_method_value); + dml21_force_pstate_method_to_uclk_state_change_strategy(dml_ctx->config.pmo.force_pstate_method_values[stream_index]); } } } diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c index 9c28304568d2..c310354cd5fc 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c @@ -47,7 +47,8 @@ static void dml21_apply_debug_options(const struct dc *in_dc, struct dml2_contex /* UCLK P-State options */ if (in_dc->debug.dml21_force_pstate_method) { dml_ctx->config.pmo.force_pstate_method_enable = true; - dml_ctx->config.pmo.force_pstate_method_value = in_dc->debug.dml21_force_pstate_method_value; + for (int i = 0; i < MAX_PIPES; i++) + dml_ctx->config.pmo.force_pstate_method_values[i] = in_dc->debug.dml21_force_pstate_method_values[i]; } else { dml_ctx->config.pmo.force_pstate_method_enable = false; } diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h index 79bf2d757804..1e891a3297c2 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h @@ -230,7 +230,7 @@ struct dml2_configuration_options { struct socbb_ip_params_external *external_socbb_ip_params; struct { bool force_pstate_method_enable; - enum dml2_force_pstate_methods force_pstate_method_value; + enum dml2_force_pstate_methods force_pstate_method_values[MAX_PIPES]; } pmo; bool map_dc_pipes_with_callbacks;