[PATCH 16/21] drm/amd/display: For no plane case set pstate support in validation
Rodrigo Siqueira
Rodrigo.Siqueira at amd.com
Thu Apr 20 23:49:46 UTC 2023
From: Alvin Lee <Alvin.Lee2 at amd.com>
- Previously update_clocks was overriding pstate support if
it checked that there were no planes
- However, P-State support should be determined in validation
phase instead
- This fixes an issue where a transition from FPO -> no planes
expects UCLK MAX, but update_clocks was overriding to set
UCLK to min
Reviewed-by: Jun Lei <Jun.Lei at amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2 at amd.com>
---
.../gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c | 4 +---
.../gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c | 7 ++-----
drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c | 8 +++++++-
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 1 +
4 files changed, 11 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
index 694a9d3d92ae..3908e7cfd6cb 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c
@@ -206,7 +206,6 @@ static void dcn3_update_clocks(struct clk_mgr *clk_mgr_base,
bool force_reset = false;
bool update_uclk = false;
bool p_state_change_support;
- int total_plane_count;
if (dc->work_arounds.skip_clock_update || !clk_mgr->smu_present)
return;
@@ -247,8 +246,7 @@ static void dcn3_update_clocks(struct clk_mgr *clk_mgr_base,
clk_mgr_base->clks.socclk_khz = new_clocks->socclk_khz;
clk_mgr_base->clks.prev_p_state_change_support = clk_mgr_base->clks.p_state_change_support;
- total_plane_count = clk_mgr_helper_get_active_plane_cnt(dc, context);
- p_state_change_support = new_clocks->p_state_change_support || (total_plane_count == 0);
+ p_state_change_support = new_clocks->p_state_change_support;
// invalidate the current P-State forced min in certain dc_mode_softmax situations
if (dc->clk_mgr->dc_mode_softmax_enabled && safe_to_lower && !p_state_change_support) {
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
index eea103908b09..85e963ec25ab 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
@@ -459,7 +459,6 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base,
bool update_uclk = false, update_fclk = false;
bool p_state_change_support;
bool fclk_p_state_change_support;
- int total_plane_count;
if (dc->work_arounds.skip_clock_update)
return;
@@ -488,8 +487,7 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base,
clk_mgr_base->clks.fclk_prev_p_state_change_support = clk_mgr_base->clks.fclk_p_state_change_support;
- total_plane_count = clk_mgr_helper_get_active_plane_cnt(dc, context);
- fclk_p_state_change_support = new_clocks->fclk_p_state_change_support || (total_plane_count == 0);
+ fclk_p_state_change_support = new_clocks->fclk_p_state_change_support;
if (should_update_pstate_support(safe_to_lower, fclk_p_state_change_support, clk_mgr_base->clks.fclk_p_state_change_support)) {
clk_mgr_base->clks.fclk_p_state_change_support = fclk_p_state_change_support;
@@ -528,8 +526,7 @@ static void dcn32_update_clocks(struct clk_mgr *clk_mgr_base,
dcn32_smu_send_cab_for_uclk_message(clk_mgr, clk_mgr_base->clks.num_ways);
}
-
- p_state_change_support = new_clocks->p_state_change_support || (total_plane_count == 0);
+ p_state_change_support = new_clocks->p_state_change_support;
if (should_update_pstate_support(safe_to_lower, p_state_change_support, clk_mgr_base->clks.p_state_change_support)) {
clk_mgr_base->clks.p_state_change_support = p_state_change_support;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c
index 7661f8946aa3..a5b1e4bb1a22 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c
@@ -1042,7 +1042,7 @@ void dcn20_calculate_dlg_params(struct dc *dc,
int pipe_cnt,
int vlevel)
{
- int i, pipe_idx;
+ int i, pipe_idx, active_hubp_count = 0;
dc_assert_fp_enabled();
@@ -1078,6 +1078,8 @@ void dcn20_calculate_dlg_params(struct dc *dc,
for (i = 0, pipe_idx = 0; i < dc->res_pool->pipe_count; i++) {
if (!context->res_ctx.pipe_ctx[i].stream)
continue;
+ if (context->res_ctx.pipe_ctx[i].plane_state)
+ active_hubp_count++;
pipes[pipe_idx].pipe.dest.vstartup_start = get_vstartup(&context->bw_ctx.dml, pipes, pipe_cnt, pipe_idx);
pipes[pipe_idx].pipe.dest.vupdate_offset = get_vupdate_offset(&context->bw_ctx.dml, pipes, pipe_cnt, pipe_idx);
pipes[pipe_idx].pipe.dest.vupdate_width = get_vupdate_width(&context->bw_ctx.dml, pipes, pipe_cnt, pipe_idx);
@@ -1104,6 +1106,10 @@ void dcn20_calculate_dlg_params(struct dc *dc,
pipe_idx++;
}
+ /* If DCN isn't making memory requests we can allow pstate change */
+ if (!active_hubp_count) {
+ context->bw_ctx.bw.dcn.clk.p_state_change_support = true;
+ }
/*save a original dppclock copy*/
context->bw_ctx.bw.dcn.clk.bw_dppclk_khz = context->bw_ctx.bw.dcn.clk.dppclk_khz;
context->bw_ctx.bw.dcn.clk.bw_dispclk_khz = context->bw_ctx.bw.dcn.clk.dispclk_khz;
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 e1e82ad4c583..2624236d20d0 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
@@ -1433,6 +1433,7 @@ static void dcn32_calculate_dlg_params(struct dc *dc, struct dc_state *context,
context->bw_ctx.bw.dcn.clk.dramclk_khz = 0;
context->bw_ctx.bw.dcn.clk.fclk_khz = 0;
context->bw_ctx.bw.dcn.clk.p_state_change_support = true;
+ context->bw_ctx.bw.dcn.clk.fclk_p_state_change_support = true;
}
/*save a original dppclock copy*/
context->bw_ctx.bw.dcn.clk.bw_dppclk_khz = context->bw_ctx.bw.dcn.clk.dppclk_khz;
--
2.39.2
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