From f3f48d6ce5089b183fdea025a8a7798a220168f6 Mon Sep 17 00:00:00 2001 From: Chuntao Tso Date: Fri, 31 Oct 2025 10:02:51 +0800 Subject: [PATCH] drm/amd/display: To support Replay frame skip mode [Why & How] The change is to optimize the Replay power saving by reducing the refresh rate with frame skipping mode Reviewed-by: Robin Chen Signed-off-by: Chuntao Tso Signed-off-by: Fangzhi Zuo Tested-by: Dan Wheeler Signed-off-by: Alex Deucher --- .../amd/display/amdgpu_dm/amdgpu_dm_replay.c | 2 +- drivers/gpu/drm/amd/display/dc/dc_types.h | 6 ++++ .../gpu/drm/amd/display/dc/dce/dmub_replay.c | 7 +++-- .../gpu/drm/amd/display/dc/dce/dmub_replay.h | 5 ++-- .../gpu/drm/amd/display/dc/inc/link_service.h | 4 +-- .../link/protocols/link_edp_panel_control.c | 17 +++++++---- .../link/protocols/link_edp_panel_control.h | 4 +-- .../amd/display/modules/power/power_helpers.c | 30 +++++++++++++++++++ .../amd/display/modules/power/power_helpers.h | 5 ++++ 9 files changed, 65 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c index 80704d709e44a..da94e3544b657 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c @@ -162,7 +162,7 @@ bool amdgpu_dm_replay_enable(struct dc_stream_state *stream, bool wait) if (link) { link->dc->link_srv->edp_setup_replay(link, stream); - link->dc->link_srv->edp_set_coasting_vtotal(link, stream->timing.v_total); + link->dc->link_srv->edp_set_coasting_vtotal(link, stream->timing.v_total, 0); DRM_DEBUG_DRIVER("Enabling replay...\n"); link->dc->link_srv->edp_set_replay_allow_active(link, &replay_active, wait, false, NULL); return true; diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index ea6b71c43d2c8..0495e6cfcca07 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -1184,6 +1184,10 @@ struct replay_settings { uint32_t coasting_vtotal_table[PR_COASTING_TYPE_NUM]; /* Defer Update Coasting vtotal table */ uint32_t defer_update_coasting_vtotal_table[PR_COASTING_TYPE_NUM]; + /* Skip frame number table */ + uint32_t frame_skip_number_table[PR_COASTING_TYPE_NUM]; + /* Defer skip frame number table */ + uint32_t defer_frame_skip_number_table[PR_COASTING_TYPE_NUM]; /* Maximum link off frame count */ uint32_t link_off_frame_count; /* Replay pseudo vtotal for low refresh rate*/ @@ -1192,6 +1196,8 @@ struct replay_settings { uint16_t last_pseudo_vtotal; /* Replay desync error */ uint32_t replay_desync_error_fail_count; + /* The frame skip number dal send to DMUB */ + uint16_t frame_skip_number; }; /* To split out "global" and "per-panel" config settings. diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c index f9542edff14bb..fd8244c946874 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.c @@ -213,7 +213,8 @@ static bool dmub_replay_copy_settings(struct dmub_replay *dmub, */ static void dmub_replay_set_coasting_vtotal(struct dmub_replay *dmub, uint32_t coasting_vtotal, - uint8_t panel_inst) + uint8_t panel_inst, + uint16_t frame_skip_number) { union dmub_rb_cmd cmd; struct dc_context *dc = dmub->ctx; @@ -227,6 +228,7 @@ static void dmub_replay_set_coasting_vtotal(struct dmub_replay *dmub, pCmd->header.payload_bytes = sizeof(struct dmub_cmd_replay_set_coasting_vtotal_data); pCmd->replay_set_coasting_vtotal_data.coasting_vtotal = (coasting_vtotal & 0xFFFF); pCmd->replay_set_coasting_vtotal_data.coasting_vtotal_high = (coasting_vtotal & 0xFFFF0000) >> 16; + pCmd->replay_set_coasting_vtotal_data.frame_skip_number = frame_skip_number; dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT); } @@ -283,7 +285,7 @@ static void dmub_replay_residency(struct dmub_replay *dmub, uint8_t panel_inst, * Set REPLAY power optimization flags and coasting vtotal. */ static void dmub_replay_set_power_opt_and_coasting_vtotal(struct dmub_replay *dmub, - unsigned int power_opt, uint8_t panel_inst, uint32_t coasting_vtotal) + unsigned int power_opt, uint8_t panel_inst, uint32_t coasting_vtotal, uint16_t frame_skip_number) { union dmub_rb_cmd cmd; struct dc_context *dc = dmub->ctx; @@ -301,6 +303,7 @@ static void dmub_replay_set_power_opt_and_coasting_vtotal(struct dmub_replay *dm pCmd->replay_set_power_opt_data.panel_inst = panel_inst; pCmd->replay_set_coasting_vtotal_data.coasting_vtotal = (coasting_vtotal & 0xFFFF); pCmd->replay_set_coasting_vtotal_data.coasting_vtotal_high = (coasting_vtotal & 0xFFFF0000) >> 16; + pCmd->replay_set_coasting_vtotal_data.frame_skip_number = frame_skip_number; dc_wake_and_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT); } diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.h b/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.h index e6346c0ffc0e4..07c79739a9809 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.h +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_replay.h @@ -27,11 +27,12 @@ struct dmub_replay_funcs { void (*replay_send_cmd)(struct dmub_replay *dmub, enum replay_FW_Message_type msg, union dmub_replay_cmd_set *cmd_element); void (*replay_set_coasting_vtotal)(struct dmub_replay *dmub, uint32_t coasting_vtotal, - uint8_t panel_inst); + uint8_t panel_inst, uint16_t frame_skip_number); void (*replay_residency)(struct dmub_replay *dmub, uint8_t panel_inst, uint32_t *residency, const bool is_start, const enum pr_residency_mode mode); void (*replay_set_power_opt_and_coasting_vtotal)(struct dmub_replay *dmub, - unsigned int power_opt, uint8_t panel_inst, uint32_t coasting_vtotal); + unsigned int power_opt, uint8_t panel_inst, uint32_t coasting_vtotal, + uint16_t frame_skip_number); }; struct dmub_replay *dmub_replay_create(struct dc_context *ctx); diff --git a/drivers/gpu/drm/amd/display/dc/inc/link_service.h b/drivers/gpu/drm/amd/display/dc/inc/link_service.h index 1e34e84160aa6..6f94e48a24d1b 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/link_service.h +++ b/drivers/gpu/drm/amd/display/dc/inc/link_service.h @@ -292,12 +292,12 @@ struct link_service { enum replay_FW_Message_type msg, union dmub_replay_cmd_set *cmd_data); bool (*edp_set_coasting_vtotal)( - struct dc_link *link, uint32_t coasting_vtotal); + struct dc_link *link, uint32_t coasting_vtotal, uint16_t frame_skip_number); bool (*edp_replay_residency)(const struct dc_link *link, unsigned int *residency, const bool is_start, const enum pr_residency_mode mode); bool (*edp_set_replay_power_opt_and_coasting_vtotal)(struct dc_link *link, - const unsigned int *power_opts, uint32_t coasting_vtotal); + const unsigned int *power_opts, uint32_t coasting_vtotal, uint16_t frame_skip_number); bool (*edp_wait_for_t12)(struct dc_link *link); bool (*edp_is_ilr_optimization_required)(struct dc_link *link, diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c index 5e806edbb9f61..9391c75a30e57 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c @@ -1110,7 +1110,7 @@ bool edp_send_replay_cmd(struct dc_link *link, return true; } -bool edp_set_coasting_vtotal(struct dc_link *link, uint32_t coasting_vtotal) +bool edp_set_coasting_vtotal(struct dc_link *link, uint32_t coasting_vtotal, uint16_t frame_skip_number) { struct dc *dc = link->ctx->dc; struct dmub_replay *replay = dc->res_pool->replay; @@ -1122,9 +1122,11 @@ bool edp_set_coasting_vtotal(struct dc_link *link, uint32_t coasting_vtotal) if (!dc_get_edp_link_panel_inst(dc, link, &panel_inst)) return false; - if (coasting_vtotal && link->replay_settings.coasting_vtotal != coasting_vtotal) { - replay->funcs->replay_set_coasting_vtotal(replay, coasting_vtotal, panel_inst); + if (coasting_vtotal && (link->replay_settings.coasting_vtotal != coasting_vtotal || + link->replay_settings.frame_skip_number != frame_skip_number)) { + replay->funcs->replay_set_coasting_vtotal(replay, coasting_vtotal, panel_inst, frame_skip_number); link->replay_settings.coasting_vtotal = coasting_vtotal; + link->replay_settings.frame_skip_number = frame_skip_number; } return true; @@ -1152,7 +1154,7 @@ bool edp_replay_residency(const struct dc_link *link, } bool edp_set_replay_power_opt_and_coasting_vtotal(struct dc_link *link, - const unsigned int *power_opts, uint32_t coasting_vtotal) + const unsigned int *power_opts, uint32_t coasting_vtotal, uint16_t frame_skip_number) { struct dc *dc = link->ctx->dc; struct dmub_replay *replay = dc->res_pool->replay; @@ -1163,13 +1165,16 @@ bool edp_set_replay_power_opt_and_coasting_vtotal(struct dc_link *link, /* Only both power and coasting vtotal changed, this func could return true */ if (power_opts && link->replay_settings.replay_power_opt_active != *power_opts && - coasting_vtotal && link->replay_settings.coasting_vtotal != coasting_vtotal) { + (coasting_vtotal && + (link->replay_settings.coasting_vtotal != coasting_vtotal || + link->replay_settings.frame_skip_number != frame_skip_number))) { if (link->replay_settings.replay_feature_enabled && replay->funcs->replay_set_power_opt_and_coasting_vtotal) { replay->funcs->replay_set_power_opt_and_coasting_vtotal(replay, - *power_opts, panel_inst, coasting_vtotal); + *power_opts, panel_inst, coasting_vtotal, frame_skip_number); link->replay_settings.replay_power_opt_active = *power_opts; link->replay_settings.coasting_vtotal = coasting_vtotal; + link->replay_settings.frame_skip_number = frame_skip_number; } else return false; } else diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.h b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.h index 62a6344e613e3..dd79c7cd2828d 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.h +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.h @@ -59,12 +59,12 @@ bool edp_setup_replay(struct dc_link *link, bool edp_send_replay_cmd(struct dc_link *link, enum replay_FW_Message_type msg, union dmub_replay_cmd_set *cmd_data); -bool edp_set_coasting_vtotal(struct dc_link *link, uint32_t coasting_vtotal); +bool edp_set_coasting_vtotal(struct dc_link *link, uint32_t coasting_vtotal, uint16_t frame_skip_number); bool edp_replay_residency(const struct dc_link *link, unsigned int *residency, const bool is_start, const enum pr_residency_mode mode); bool edp_get_replay_state(const struct dc_link *link, uint64_t *state); bool edp_set_replay_power_opt_and_coasting_vtotal(struct dc_link *link, - const unsigned int *power_opts, uint32_t coasting_vtotal); + const unsigned int *power_opts, uint32_t coasting_vtotal, uint16_t frame_skip_number); bool edp_wait_for_t12(struct dc_link *link); bool edp_is_ilr_optimization_required(struct dc_link *link, struct dc_crtc_timing *crtc_timing); diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c index 29ccd3532d139..88b5b716a0847 100644 --- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c +++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c @@ -975,6 +975,34 @@ bool psr_su_set_dsc_slice_height(struct dc *dc, struct dc_link *link, return true; } +void set_replay_frame_skip_number(struct dc_link *link, + enum replay_coasting_vtotal_type type, + uint32_t coasting_vtotal_refresh_rate_mhz, + uint32_t flicker_free_refresh_rate_mhz, + bool is_defer) +{ + uint32_t *frame_skip_number_array = NULL; + uint32_t frame_skip_number = 0; + + if (link == NULL || flicker_free_refresh_rate_mhz == 0 || coasting_vtotal_refresh_rate_mhz == 0) + return; + + if (is_defer) + frame_skip_number_array = link->replay_settings.defer_frame_skip_number_table; + else + frame_skip_number_array = link->replay_settings.frame_skip_number_table; + + if (frame_skip_number_array == NULL) + return; + + frame_skip_number = coasting_vtotal_refresh_rate_mhz / flicker_free_refresh_rate_mhz; + + if (frame_skip_number >= 1) + frame_skip_number_array[type] = frame_skip_number - 1; + else + frame_skip_number_array[type] = 0; +} + void set_replay_defer_update_coasting_vtotal(struct dc_link *link, enum replay_coasting_vtotal_type type, uint32_t vtotal) @@ -987,6 +1015,8 @@ void update_replay_coasting_vtotal_from_defer(struct dc_link *link, { link->replay_settings.coasting_vtotal_table[type] = link->replay_settings.defer_update_coasting_vtotal_table[type]; + link->replay_settings.frame_skip_number_table[type] = + link->replay_settings.defer_frame_skip_number_table[type]; } void set_replay_coasting_vtotal(struct dc_link *link, diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.h b/drivers/gpu/drm/amd/display/modules/power/power_helpers.h index 391209a3bf298..87d31d9dce5a6 100644 --- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.h +++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.h @@ -60,6 +60,11 @@ void set_replay_coasting_vtotal(struct dc_link *link, void set_replay_defer_update_coasting_vtotal(struct dc_link *link, enum replay_coasting_vtotal_type type, uint32_t vtotal); +void set_replay_frame_skip_number(struct dc_link *link, + enum replay_coasting_vtotal_type type, + uint32_t coasting_vtotal_refresh_rate_Mhz, + uint32_t flicker_free_refresh_rate_Mhz, + bool is_defer); void update_replay_coasting_vtotal_from_defer(struct dc_link *link, enum replay_coasting_vtotal_type type); void set_replay_low_rr_full_screen_video_src_vtotal(struct dc_link *link, uint16_t vtotal); -- 2.47.3