[PATCH 03/47] drm/amd/display: Add ODM check during pipe split/merge validation

[Rodrigo Siqueira]

From: Relja Vojvodic <relja.vojvodic at amd.com>

[why]
When querying DML for a vlevel after pipes have been split or merged the
ODM policy would revert to a default policy, which could cause the query
to use the incorrect ODM status. In this case ODM 2to1 was validated,
but the last DML query would assume no ODM and return the incorrect
vlevel.

[how]
Added ODM check to apply the correct ODM policy before querying DML.

Reviewed-by: Alvin Lee <alvin.lee2 at amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira at amd.com>
Signed-off-by: Relja Vojvodic <relja.vojvodic at amd.com>
---
 .../display/dc/dcn32/dcn32_resource_helpers.c | 26 +++++++++++++++++++
 .../drm/amd/display/dc/dml/dcn32/dcn32_fpu.c  |  3 +++
 .../dc/resource/dcn32/dcn32_resource.h        |  2 ++
 3 files changed, 31 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
index 389ac7ae1154..e8159a459bce 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
@@ -806,3 +806,29 @@ bool dcn32_subvp_vblank_admissable(struct dc *dc, struct dc_state *context, int
 
 	return result;
 }
+
+void dcn32_update_dml_pipes_odm_policy_based_on_context(struct dc *dc, struct dc_state *context,
+		display_e2e_pipe_params_st *pipes)
+{
+	int i, pipe_cnt;
+	struct resource_context *res_ctx = &context->res_ctx;
+	struct pipe_ctx *pipe = NULL;
+
+	for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) {
+		int odm_slice_count = 0;
+
+		if (!res_ctx->pipe_ctx[i].stream)
+			continue;
+		pipe = &res_ctx->pipe_ctx[i];
+		odm_slice_count = resource_get_odm_slice_count(pipe);
+
+		if (odm_slice_count == 1)
+			pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_dal;
+		else if (odm_slice_count == 2)
+			pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_2to1;
+		else if (odm_slice_count == 4)
+			pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_4to1;
+
+		pipe_cnt++;
+	}
+}
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index 26411d4e9730..de209ca0cf8c 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -2192,6 +2192,7 @@ bool dcn32_internal_validate_bw(struct dc *dc,
 		int i;
 
 		pipe_cnt = dc->res_pool->funcs->populate_dml_pipes(dc, context, pipes, fast_validate);
+		dcn32_update_dml_pipes_odm_policy_based_on_context(dc, context, pipes);
 
 		/* repopulate_pipes = 1 means the pipes were either split or merged. In this case
 		 * we have to re-calculate the DET allocation and run through DML once more to
@@ -2200,7 +2201,9 @@ bool dcn32_internal_validate_bw(struct dc *dc,
 		 * */
 		context->bw_ctx.dml.soc.allow_for_pstate_or_stutter_in_vblank_final =
 					dm_prefetch_support_uclk_fclk_and_stutter_if_possible;
+
 		vlevel = dml_get_voltage_level(&context->bw_ctx.dml, pipes, pipe_cnt);
+
 		if (vlevel == context->bw_ctx.dml.soc.num_states) {
 			/* failed after DET size changes */
 			goto validate_fail;
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.h b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.h
index b2f20e6cfb38..9ca799da1a56 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.h
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.h
@@ -193,6 +193,8 @@ bool dcn32_subvp_drr_admissable(struct dc *dc, struct dc_state *context);
 
 bool dcn32_subvp_vblank_admissable(struct dc *dc, struct dc_state *context, int vlevel);
 
+void dcn32_update_dml_pipes_odm_policy_based_on_context(struct dc *dc, struct dc_state *context, display_e2e_pipe_params_st *pipes);
+
 /* definitions for run time init of reg offsets */
 
 /* CLK SRC */
-- 
2.42.0