[PATCH 01/14] drm/amd/display: add ODM case when looking for first split pipe

[PATCH 01/14] drm/amd/display: add ODM case when looking for first split pipe

[Stylon Wang]

From: Samson Tam <samson.tam@amd.com>

[Why]
When going from ODM 2:1 single display case to max displays, second
odm pipe needs to be repurposed for one of the new single displays.
However, acquire_first_split_pipe() only handles MPC case and not
ODM case

[How]
Add ODM conditions in acquire_first_split_pipe()
Add commit_minimal_transition_state() in commit_streams() to handle
odm 2:1 exit first, and then process new streams
Handle ODM condition in commit_minimal_transition_state()

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Samson Tam <samson.tam@amd.com>
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c      | 36 ++++++++++++++++++-
 .../gpu/drm/amd/display/dc/core/dc_resource.c | 20 +++++++++++
 2 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index f3820c5e63af..2ad4293bb3e5 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2008,6 +2008,9 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c
 	return result;
 }
 
+static bool commit_minimal_transition_state(struct dc *dc,
+		struct dc_state *transition_base_context);
+
 /**
  * dc_commit_streams - Commit current stream state
  *
@@ -2029,6 +2032,8 @@ enum dc_status dc_commit_streams(struct dc *dc,
 	struct dc_state *context;
 	enum dc_status res = DC_OK;
 	struct dc_validation_set set[MAX_STREAMS] = {0};
+	struct pipe_ctx *pipe;
+	bool handle_exit_odm2to1 = false;
 
 	if (dc->ctx->dce_environment == DCE_ENV_VIRTUAL_HW)
 		return res;
@@ -2053,6 +2058,22 @@ enum dc_status dc_commit_streams(struct dc *dc,
 		}
 	}
 
+	/* Check for case where we are going from odm 2:1 to max
+	 *  pipe scenario.  For these cases, we will call
+	 *  commit_minimal_transition_state() to exit out of odm 2:1
+	 *  first before processing new streams
+	 */
+	if (stream_count == dc->res_pool->pipe_count) {
+		for (i = 0; i < dc->res_pool->pipe_count; i++) {
+			pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+			if (pipe->next_odm_pipe)
+				handle_exit_odm2to1 = true;
+		}
+	}
+
+	if (handle_exit_odm2to1)
+		res = commit_minimal_transition_state(dc, dc->current_state);
+
 	context = dc_create_state(dc);
 	if (!context)
 		goto context_alloc_fail;
@@ -3912,6 +3933,7 @@ static bool commit_minimal_transition_state(struct dc *dc,
 	unsigned int i, j;
 	unsigned int pipe_in_use = 0;
 	bool subvp_in_use = false;
+	bool odm_in_use = false;
 
 	if (!transition_context)
 		return false;
@@ -3940,6 +3962,18 @@ static bool commit_minimal_transition_state(struct dc *dc,
 		}
 	}
 
+	/* If ODM is enabled and we are adding or removing planes from any ODM
+	 * pipe, we must use the minimal transition.
+	 */
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
+
+		if (pipe->stream && pipe->next_odm_pipe) {
+			odm_in_use = true;
+			break;
+		}
+	}
+
 	/* When the OS add a new surface if we have been used all of pipes with odm combine
 	 * and mpc split feature, it need use commit_minimal_transition_state to transition safely.
 	 * After OS exit MPO, it will back to use odm and mpc split with all of pipes, we need
@@ -3948,7 +3982,7 @@ static bool commit_minimal_transition_state(struct dc *dc,
 	 * Reduce the scenarios to use dc_commit_state_no_check in the stage of flip. Especially
 	 * enter/exit MPO when DCN still have enough resources.
 	 */
-	if (pipe_in_use != dc->res_pool->pipe_count && !subvp_in_use) {
+	if (pipe_in_use != dc->res_pool->pipe_count && !subvp_in_use && !odm_in_use) {
 		dc_release_state(transition_context);
 		return true;
 	}
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 7e1e5532f88f..c72540d37aef 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1445,6 +1445,26 @@ static int acquire_first_split_pipe(
 			split_pipe->plane_res.mpcc_inst = pool->dpps[i]->inst;
 			split_pipe->pipe_idx = i;
 
+			split_pipe->stream = stream;
+			return i;
+		} else if (split_pipe->prev_odm_pipe &&
+				split_pipe->prev_odm_pipe->plane_state == split_pipe->plane_state) {
+			split_pipe->prev_odm_pipe->next_odm_pipe = split_pipe->next_odm_pipe;
+			if (split_pipe->next_odm_pipe)
+				split_pipe->next_odm_pipe->prev_odm_pipe = split_pipe->prev_odm_pipe;
+
+			if (split_pipe->prev_odm_pipe->plane_state)
+				resource_build_scaling_params(split_pipe->prev_odm_pipe);
+
+			memset(split_pipe, 0, sizeof(*split_pipe));
+			split_pipe->stream_res.tg = pool->timing_generators[i];
+			split_pipe->plane_res.hubp = pool->hubps[i];
+			split_pipe->plane_res.ipp = pool->ipps[i];
+			split_pipe->plane_res.dpp = pool->dpps[i];
+			split_pipe->stream_res.opp = pool->opps[i];
+			split_pipe->plane_res.mpcc_inst = pool->dpps[i]->inst;
+			split_pipe->pipe_idx = i;
+
 			split_pipe->stream = stream;
 			return i;
 		}
-- 
2.40.1

[PATCH 02/14] drm/amd/display: fix seamless odm transitions

[Stylon Wang]

From: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>

Add missing programming and function pointers

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 11 +++++++++++
 drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c  |  2 +-
 drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.h  |  1 +
 3 files changed, 13 insertions(+), 1 deletion(-)

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 eaf9e9ccad2a..20f668d28364 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1741,6 +1741,17 @@ static void dcn20_program_pipe(
 
 		if (hws->funcs.setup_vupdate_interrupt)
 			hws->funcs.setup_vupdate_interrupt(dc, pipe_ctx);
+
+		if (hws->funcs.calculate_dccg_k1_k2_values && dc->res_pool->dccg->funcs->set_pixel_rate_div) {
+			unsigned int k1_div, k2_div;
+
+			hws->funcs.calculate_dccg_k1_k2_values(pipe_ctx, &k1_div, &k2_div);
+
+			dc->res_pool->dccg->funcs->set_pixel_rate_div(
+				dc->res_pool->dccg,
+				pipe_ctx->stream_res.tg->inst,
+				k1_div, k2_div);
+		}
 	}
 
 	if (pipe_ctx->update_flags.bits.odm)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c
index 6ef56fb32131..2cffedea2df5 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c
@@ -98,7 +98,7 @@ static void optc32_set_odm_combine(struct timing_generator *optc, int *opp_id, i
 	optc1->opp_count = opp_cnt;
 }
 
-static void optc32_set_h_timing_div_manual_mode(struct timing_generator *optc, bool manual_mode)
+void optc32_set_h_timing_div_manual_mode(struct timing_generator *optc, bool manual_mode)
 {
 	struct optc *optc1 = DCN10TG_FROM_TG(optc);
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.h b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.h
index b92ba8c75694..abf0121a1006 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.h
@@ -179,5 +179,6 @@
 	SF(OTG0_OTG_DRR_CONTROL, OTG_V_TOTAL_LAST_USED_BY_DRR, mask_sh)
 
 void dcn32_timing_generator_init(struct optc *optc1);
+void optc32_set_h_timing_div_manual_mode(struct timing_generator *optc, bool manual_mode);
 
 #endif /* __DC_OPTC_DCN32_H__ */
-- 
2.40.1

[PATCH 03/14] drm/amd/display: fix dcn315 single stream crb allocation

[Stylon Wang]

From: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>

Change to improve avoiding asymetric crb calculations for single stream
scenarios.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
---
 .../drm/amd/display/dc/dcn315/dcn315_resource.c   | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
index cb95e978417b..8570bdc292b4 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn315/dcn315_resource.c
@@ -1628,6 +1628,10 @@ static bool allow_pixel_rate_crb(struct dc *dc, struct dc_state *context)
 	int i;
 	struct resource_context *res_ctx = &context->res_ctx;
 
+	/*Don't apply for single stream*/
+	if (context->stream_count < 2)
+		return false;
+
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
 		if (!res_ctx->pipe_ctx[i].stream)
 			continue;
@@ -1727,19 +1731,23 @@ static int dcn315_populate_dml_pipes_from_context(
 		pipe_cnt++;
 	}
 
-	/* Spread remaining unreserved crb evenly among all pipes, use default policy if not enough det or single pipe */
+	/* Spread remaining unreserved crb evenly among all pipes*/
 	if (pixel_rate_crb) {
 		for (i = 0, pipe_cnt = 0, crb_idx = 0; i < dc->res_pool->pipe_count; i++) {
 			pipe = &res_ctx->pipe_ctx[i];
 			if (!pipe->stream)
 				continue;
 
+			/* Do not use asymetric crb if not enough for pstate support */
+			if (remaining_det_segs < 0) {
+				pipes[pipe_cnt].pipe.src.det_size_override = 0;
+				continue;
+			}
+
 			if (!pipe->top_pipe && !pipe->prev_odm_pipe) {
 				bool split_required = pipe->stream->timing.pix_clk_100hz >= dcn_get_max_non_odm_pix_rate_100hz(&dc->dml.soc)
 						|| (pipe->plane_state && pipe->plane_state->src_rect.width > 5120);
 
-				if (remaining_det_segs < 0 || crb_pipes == 1)
-					pipes[pipe_cnt].pipe.src.det_size_override = 0;
 				if (remaining_det_segs > MIN_RESERVED_DET_SEGS)
 					pipes[pipe_cnt].pipe.src.det_size_override += (remaining_det_segs - MIN_RESERVED_DET_SEGS) / crb_pipes +
 							(crb_idx < (remaining_det_segs - MIN_RESERVED_DET_SEGS) % crb_pipes ? 1 : 0);
@@ -1755,6 +1763,7 @@ static int dcn315_populate_dml_pipes_from_context(
 				}
 				/* Convert segments into size for DML use */
 				pipes[pipe_cnt].pipe.src.det_size_override *= DCN3_15_CRB_SEGMENT_SIZE_KB;
+
 				crb_idx++;
 			}
 			pipe_cnt++;
-- 
2.40.1

[PATCH 07/14] drm/amd/display: Reduce sdp bw after urgent to 90%

[Stylon Wang]

From: Alvin Lee <alvin.lee2@amd.com>

[Description]
Reduce expected SDP bandwidth due to poor QoS and
arbitration issues on high bandwidth configs

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 137ff970c9aa..b17f30afa189 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
@@ -147,7 +147,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_2_soc = {
 	.urgent_out_of_order_return_per_channel_pixel_only_bytes = 4096,
 	.urgent_out_of_order_return_per_channel_pixel_and_vm_bytes = 4096,
 	.urgent_out_of_order_return_per_channel_vm_only_bytes = 4096,
-	.pct_ideal_sdp_bw_after_urgent = 100.0,
+	.pct_ideal_sdp_bw_after_urgent = 90.0,
 	.pct_ideal_fabric_bw_after_urgent = 67.0,
 	.pct_ideal_dram_sdp_bw_after_urgent_pixel_only = 20.0,
 	.pct_ideal_dram_sdp_bw_after_urgent_pixel_and_vm = 60.0, // N/A, for now keep as is until DML implemented
-- 
2.40.1