[PATCH 01/16] drm/amd/display: Add override for visual confirm

[Aurabindo Pillai]

From: Leo Zeng <leo.z...@amd.com>

[WHY]
We want to allow the display manager to override the visual
confirm color in DC when required.

[HOW]
Add new visual confirm mode VISUAL_CONFIRM_EXPLICIT, check mode before
setting visual confirm color.

Reviewed-by: Aric Cyr <aric....@amd.com>
Signed-off-by: Leo Zeng <leo.z...@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pil...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 6 ++++++
 drivers/gpu/drm/amd/display/dc/dc.h      | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c 
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 28d1353f403d..5a44f5da68dc 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1192,6 +1192,12 @@ static void apply_ctx_interdependent_lock(struct dc *dc,
 
 static void dc_update_visual_confirm_color(struct dc *dc, struct dc_state 
*context, struct pipe_ctx *pipe_ctx)
 {
+       if (dc->debug.visual_confirm & VISUAL_CONFIRM_EXPLICIT) {
+               memcpy(&pipe_ctx->visual_confirm_color, 
&pipe_ctx->plane_state->visual_confirm_color,
+               sizeof(pipe_ctx->visual_confirm_color));
+               return;
+       }
+
        if (dc->ctx->dce_version >= DCN_VERSION_1_0) {
                memset(&pipe_ctx->visual_confirm_color, 0, sizeof(struct 
tg_color));
 
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h 
b/drivers/gpu/drm/amd/display/dc/dc.h
index 7c2ee0526926..78dd4d1f51dc 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -496,6 +496,7 @@ enum visual_confirm {
        VISUAL_CONFIRM_HW_CURSOR = 20,
        VISUAL_CONFIRM_VABC = 21,
        VISUAL_CONFIRM_DCC = 22,
+       VISUAL_CONFIRM_EXPLICIT = 0x80000000,
 };
 
 enum dc_psr_power_opts {
-- 
2.49.0