drm/amd/display: Add support for visual confirm color

[Why]
We want to get the visual confirm color of the bottom-most pipe
for test automation.

[How]
Save the visual confirm color to plane_state before program to MPC;

Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@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 cffb913..5e18bdb 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -1183,6 +1183,7 @@ struct dc_plane_state {
        /* private to dc_surface.c */
        enum dc_irq_source irq_source;
        struct kref refcount;
+       struct tg_color visual_confirm_color;
 };
 
 struct dc_plane_info {

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index 9b5c0da..32d2436 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -389,6 +389,37 @@ void dc_dmub_srv_query_caps_cmd(struct dmub_srv *dmub)
        }
 }
 
+void dc_dmub_srv_get_visual_confirm_color_cmd(struct dc *dc, struct pipe_ctx *pipe_ctx)
+{
+       union dmub_rb_cmd cmd = { 0 };
+       enum dmub_status status;
+       unsigned int panel_inst = 0;
+
+       dc_get_edp_link_panel_inst(dc, pipe_ctx->stream->link, &panel_inst);
+
+       memset(&cmd, 0, sizeof(cmd));
+
+       // Prepare fw command
+       cmd.visual_confirm_color.header.type = DMUB_CMD__GET_VISUAL_CONFIRM_COLOR;
+       cmd.visual_confirm_color.header.sub_type = 0;
+       cmd.visual_confirm_color.header.ret_status = 1;
+       cmd.visual_confirm_color.header.payload_bytes = sizeof(struct dmub_cmd_visual_confirm_color_data);
+       cmd.visual_confirm_color.visual_confirm_color_data.visual_confirm_color.panel_inst = panel_inst;
+
+       // Send command to fw
+       status = dmub_srv_cmd_with_reply_data(dc->ctx->dmub_srv->dmub, &cmd);
+
+       ASSERT(status == DMUB_STATUS_OK);
+
+       // If command was processed, copy feature caps to dmub srv
+       if (status == DMUB_STATUS_OK &&
+               cmd.visual_confirm_color.header.ret_status == 0) {
+               memcpy(&dc->ctx->dmub_srv->dmub->visual_confirm_color,
+                       &cmd.visual_confirm_color.visual_confirm_color_data,
+                       sizeof(struct dmub_visual_confirm_color));
+       }
+}
+
 #ifdef CONFIG_DRM_AMD_DC_DCN
 /**
  * ***********************************************************************************************

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h
index 159782c..9f5b47b 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h
@@ -78,6 +78,7 @@ void dc_dmub_srv_set_drr_manual_trigger_cmd(struct dc *dc, uint32_t tg_inst);
 bool dc_dmub_srv_p_state_delegate(struct dc *dc, bool enable_pstate, struct dc_state *context);
 
 void dc_dmub_srv_query_caps_cmd(struct dmub_srv *dmub);
+void dc_dmub_srv_get_visual_confirm_color_cmd(struct dc *dc, struct pipe_ctx *pipe_ctx);
 void dc_dmub_srv_clear_inbox0_ack(struct dc_dmub_srv *dmub_srv);
 void dc_dmub_srv_wait_for_inbox0_ack(struct dc_dmub_srv *dmub_srv);
 void dc_dmub_srv_send_inbox0_cmd(struct dc_dmub_srv *dmub_srv, union dmub_inbox0_data_register data);

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 2118ad3..d3f6a26 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2539,8 +2539,10 @@ void dcn10_update_visual_confirm_color(struct dc *dc, struct pipe_ctx *pipe_ctx,
                color_space_to_black_color(
                                dc, pipe_ctx->stream->output_color_space, color);
 
-       if (mpc->funcs->set_bg_color)
+       if (mpc->funcs->set_bg_color) {
+               memcpy(&pipe_ctx->plane_state->visual_confirm_color, color, sizeof(struct tg_color));
                mpc->funcs->set_bg_color(mpc, color, mpcc_id);
+       }
 }
 
 void dcn10_update_mpcc(struct dc *dc, struct pipe_ctx *pipe_ctx)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index cf439ed..3153c9f 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -2466,8 +2466,10 @@ void dcn20_update_visual_confirm_color(struct dc *dc, struct pipe_ctx *pipe_ctx,
        else if (dc->debug.visual_confirm == VISUAL_CONFIRM_SWIZZLE)
                get_surface_tile_visual_confirm_color(pipe_ctx, color);
 
-       if (mpc->funcs->set_bg_color)
+       if (mpc->funcs->set_bg_color) {
+               memcpy(&pipe_ctx->plane_state->visual_confirm_color, color, sizeof(struct tg_color));
                mpc->funcs->set_bg_color(mpc, color, mpcc_id);
+       }
 }
 
 void dcn20_update_mpcc(struct dc *dc, struct pipe_ctx *pipe_ctx)

diff --git a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
index ced176d..f34c45b 100644 (file)
--- a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
+++ b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
@@ -441,6 +441,7 @@ struct dmub_srv {
 
        /* Feature capabilities reported by fw */
        struct dmub_feature_caps feature_caps;
+       struct dmub_visual_confirm_color visual_confirm_color;
 };
 
 /**

diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
index 829410a..1184bef 100644 (file)
--- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
+++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
@@ -246,6 +246,16 @@ struct dmub_feature_caps {
        uint8_t reserved[6];
 };
 
+struct dmub_visual_confirm_color {
+       /**
+        * Maximum 10 bits color value
+        */
+       uint16_t color_r_cr;
+       uint16_t color_g_y;
+       uint16_t color_b_cb;
+       uint16_t panel_inst;
+};
+
 #if defined(__cplusplus)
 }
 #endif
@@ -645,6 +655,10 @@ enum dmub_cmd_type {
         */
        DMUB_CMD__QUERY_FEATURE_CAPS = 6,
        /**
+        * Command type used to get visual confirm color.
+        */
+       DMUB_CMD__GET_VISUAL_CONFIRM_COLOR = 8,
+       /**
         * Command type used for all PSR commands.
         */
        DMUB_CMD__PSR = 64,
@@ -2778,6 +2792,31 @@ struct dmub_rb_cmd_query_feature_caps {
        struct dmub_cmd_query_feature_caps_data query_feature_caps_data;
 };
 
+/**
+ * Data passed from driver to FW in a DMUB_CMD__GET_VISUAL_CONFIRM_COLOR command.
+ */
+struct dmub_cmd_visual_confirm_color_data {
+       /**
+        * DMUB feature capabilities.
+        * After DMUB init, driver will query FW capabilities prior to enabling certain features.
+        */
+struct dmub_visual_confirm_color visual_confirm_color;
+};
+
+/**
+ * Definition of a DMUB_CMD__GET_VISUAL_CONFIRM_COLOR command.
+ */
+struct dmub_rb_cmd_get_visual_confirm_color {
+ /**
+        * Command header.
+        */
+       struct dmub_cmd_header header;
+       /**
+        * Data passed from driver to FW in a DMUB_CMD__GET_VISUAL_CONFIRM_COLOR command.
+        */
+       struct dmub_cmd_visual_confirm_color_data visual_confirm_color_data;
+};
+
 struct dmub_optc_state {
        uint32_t v_total_max;
        uint32_t v_total_min;
@@ -3150,6 +3189,11 @@ union dmub_rb_cmd {
         * Definition of a DMUB_CMD__QUERY_FEATURE_CAPS command.
         */
        struct dmub_rb_cmd_query_feature_caps query_feature_caps;
+
+       /**
+        * Definition of a DMUB_CMD__GET_VISUAL_CONFIRM_COLOR command.
+        */
+       struct dmub_rb_cmd_get_visual_confirm_color visual_confirm_color;
        struct dmub_rb_cmd_drr_update drr_update;
        struct dmub_rb_cmd_fw_assisted_mclk_switch fw_assisted_mclk_switch;