drm/amd/display: Check if PSR enabled when entering MALL

[Description]
- When attempting to enter MALL SS when a PSR panel
  is connected, we have to check that the PSR panel
  has already entered PSR because the vsync interrupt
  call is per display index (can be called for the
  non-PSR panel first)
- Also don't override link settings when programming
  phantom stream (main and phantom pipe share the same link)
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

@@ -1561,8 +1561,13 @@ static enum dc_status apply_single_controller_ctx_to_hw(
 
 	pipe_ctx->plane_res.scl_data.lb_params.alpha_en = pipe_ctx->bottom_pipe != NULL;
 
-	pipe_ctx->stream->link->psr_settings.psr_feature_enabled = false;
-
+	/* Phantom and main stream share the same link (because the stream
+	 * is constructed with the same sink). Make sure not to override
+	 * and link programming on the main.
+	 */
+	if (pipe_ctx->stream->mall_stream_config.type != SUBVP_PHANTOM) {
+		pipe_ctx->stream->link->psr_settings.psr_feature_enabled = false;
+	}
 	return DC_OK;
 }
 

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c

@@ -227,8 +227,13 @@ static uint32_t dcn32_calculate_cab_allocation(struct dc *dc, struct dc_state *c
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
 		struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
 
+		/* If PSR is supported on an eDP panel that's connected, but that panel is
+		 * not in PSR at the time of trying to enter MALL SS, we have to include it
+		 * in the static screen CAB calculation
+		 */
 		if (!pipe->stream || !pipe->plane_state ||
-				pipe->stream->link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED ||
+				(pipe->stream->link->psr_settings.psr_version != DC_PSR_VERSION_UNSUPPORTED &&
+				pipe->stream->link->psr_settings.psr_allow_active) ||
 				pipe->stream->mall_stream_config.type == SUBVP_PHANTOM)
 			continue;