drm/amd/display: enabling seamless boot sequence for dcn2

[Why]
Seamless boot (building SW state inheriting BIOS-initialized timing) was
enabled on DCN2, including fixes

[How]
Includes fixes for MPC, DPPCLK, and DIG FE mapping/OTG source select/
Pixel clock.

This is part 2 of 2 for seamless boot NV10

Signed-off-by: Martin Leung <martin.leung@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

3 files changed, 56 insertions, 22 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index f61eb296542a..760384561180 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -960,7 +960,7 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc,
 {
 	struct timing_generator *tg;
 	struct dc_link *link = sink->link;
-	unsigned int inst;
+	unsigned int enc_inst, tg_inst;
 
 	/* Check for enabled DIG to identify enabled display */
 	if (!link->link_enc->funcs->is_dig_enabled(link->link_enc))
@@ -972,13 +972,22 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc,
 	 * current implementation always map 1-to-1, so this code makes
 	 * the same assumption and doesn't check OTG source.
 	 */
-	inst = link->link_enc->funcs->get_dig_frontend(link->link_enc) - 1;
+	enc_inst = link->link_enc->funcs->get_dig_frontend(link->link_enc);
 
 	/* Instance should be within the range of the pool */
-	if (inst >= dc->res_pool->pipe_count)
+	if (enc_inst >= dc->res_pool->pipe_count)
 		return false;
 
-	tg = dc->res_pool->timing_generators[inst];
+	if (enc_inst >= dc->res_pool->stream_enc_count)
+		return false;
+
+	tg_inst = dc->res_pool->stream_enc[enc_inst]->funcs->dig_source_otg(
+		dc->res_pool->stream_enc[enc_inst]);
+
+	if (tg_inst >= dc->res_pool->timing_generator_count)
+		return false;
+
+	tg = dc->res_pool->timing_generators[tg_inst];
 
 	if (!tg->funcs->is_matching_timing)
 		return false;
@@ -991,10 +1000,11 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc,
 
 		dc->res_pool->dp_clock_source->funcs->get_pixel_clk_frequency_100hz(
 			dc->res_pool->dp_clock_source,
-			inst, &pix_clk_100hz);
+			tg_inst, &pix_clk_100hz);
 
 		if (crtc_timing->pix_clk_100hz != pix_clk_100hz)
 			return false;
+
 	}
 
 	return true;
@@ -1904,13 +1914,17 @@ static void commit_planes_do_stream_update(struct dc *dc,
 
 			if (stream_update->dpms_off) {
 				dc->hwss.pipe_control_lock(dc, pipe_ctx, true);
+
 				if (*stream_update->dpms_off) {
 					core_link_disable_stream(pipe_ctx, KEEP_ACQUIRED_RESOURCE);
 					dc->hwss.optimize_bandwidth(dc, dc->current_state);
 				} else {
-					dc->hwss.prepare_bandwidth(dc, dc->current_state);
+					if (!dc->optimize_seamless_boot)
+						dc->hwss.prepare_bandwidth(dc, dc->current_state);
+
 					core_link_enable_stream(dc->current_state, pipe_ctx);
 				}
+
 				dc->hwss.pipe_control_lock(dc, pipe_ctx, false);
 			}
 
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 0a66a6f21f58..892542d28c46 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1421,6 +1421,16 @@ static enum dc_status enable_link_dp(
 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
 	bool fec_enable;
 #endif
+	int i;
+	bool apply_seamless_boot_optimization = false;
+
+	// check for seamless boot
+	for (i = 0; i < state->stream_count; i++) {
+		if (state->streams[i]->apply_seamless_boot_optimization) {
+			apply_seamless_boot_optimization = true;
+			break;
+		}
+	}
 
 	/* get link settings for video mode timing */
 	decide_link_settings(stream, &link_settings);
@@ -1442,7 +1452,8 @@ static enum dc_status enable_link_dp(
 
 	pipe_ctx->stream_res.pix_clk_params.requested_sym_clk =
 			link_settings.link_rate * LINK_RATE_REF_FREQ_IN_KHZ;
-	state->clk_mgr->funcs->update_clocks(state->clk_mgr, state, false);
+	if (!apply_seamless_boot_optimization)
+		state->clk_mgr->funcs->update_clocks(state->clk_mgr, state, false);
 
 	dp_enable_link_phy(
 		link,
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 5956e70f573f..97e992e30d1a 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1893,7 +1893,7 @@ static int acquire_resource_from_hw_enabled_state(
 		struct dc_stream_state *stream)
 {
 	struct dc_link *link = stream->link;
-	unsigned int inst;
+	unsigned int inst, tg_inst;
 
 	/* Check for enabled DIG to identify enabled display */
 	if (!link->link_enc->funcs->is_dig_enabled(link->link_enc))
@@ -1905,28 +1905,37 @@ static int acquire_resource_from_hw_enabled_state(
 	 * current implementation always map 1-to-1, so this code makes
 	 * the same assumption and doesn't check OTG source.
 	 */
-	inst = link->link_enc->funcs->get_dig_frontend(link->link_enc) - 1;
+	inst = link->link_enc->funcs->get_dig_frontend(link->link_enc);
 
 	/* Instance should be within the range of the pool */
 	if (inst >= pool->pipe_count)
 		return -1;
 
-	if (!res_ctx->pipe_ctx[inst].stream) {
-		struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[inst];
+	if (inst >= pool->stream_enc_count)
+		return -1;
+
+	tg_inst = pool->stream_enc[inst]->funcs->dig_source_otg(pool->stream_enc[inst]);
+
+	if (tg_inst >= pool->timing_generator_count)
+		return false;
+
+	if (!res_ctx->pipe_ctx[tg_inst].stream) {
+		struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[tg_inst];
+
+		pipe_ctx->stream_res.tg = pool->timing_generators[tg_inst];
+		pipe_ctx->plane_res.mi = pool->mis[tg_inst];
+		pipe_ctx->plane_res.hubp = pool->hubps[tg_inst];
+		pipe_ctx->plane_res.ipp = pool->ipps[tg_inst];
+		pipe_ctx->plane_res.xfm = pool->transforms[tg_inst];
+		pipe_ctx->plane_res.dpp = pool->dpps[tg_inst];
+		pipe_ctx->stream_res.opp = pool->opps[tg_inst];
 
-		pipe_ctx->stream_res.tg = pool->timing_generators[inst];
-		pipe_ctx->plane_res.mi = pool->mis[inst];
-		pipe_ctx->plane_res.hubp = pool->hubps[inst];
-		pipe_ctx->plane_res.ipp = pool->ipps[inst];
-		pipe_ctx->plane_res.xfm = pool->transforms[inst];
-		pipe_ctx->plane_res.dpp = pool->dpps[inst];
-		pipe_ctx->stream_res.opp = pool->opps[inst];
-		if (pool->dpps[inst])
-			pipe_ctx->plane_res.mpcc_inst = pool->dpps[inst]->inst;
-		pipe_ctx->pipe_idx = inst;
+		if (pool->dpps[tg_inst])
+			pipe_ctx->plane_res.mpcc_inst = pool->dpps[tg_inst]->inst;
+		pipe_ctx->pipe_idx = tg_inst;
 
 		pipe_ctx->stream = stream;
-		return inst;
+		return tg_inst;
 	}
 
 	return -1;