We only gain a benefit of using the ODM2:1 dynamic policy if it allow us
to decrease DISPCLK to use the VMIN freq. If the display config can
already achieve VMIN DISPCLK freq without ODM2:1, don't apply the
policy.
This patch was reverted but that causes some IGT regressions. To
unblock, the patch is being applied again until IGT failures are
fixed.
Signed-off-by: Alvin Lee <Alvin.Lee2@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c | 1 +
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
index 8d68f02f5147..2e6b39fe2613 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
@@ -1918,6 +1918,7 @@ int dcn32_populate_dml_pipes_from_context(
context->stream_status[0].plane_count == 1 &&
!dc_is_hdmi_signal(res_ctx->pipe_ctx[i].stream->signal) &&
is_h_timing_divisible_by_2(res_ctx->pipe_ctx[i].stream) &&
+ pipe->stream->timing.pix_clk_100hz * 100 > DCN3_2_VMIN_DISPCLK_HZ &&
dc->debug.enable_single_display_2to1_odm_policy &&
!vsr_odm_support) { //excluding 2to1 ODM combine on >= 5k vsr
pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_2to1;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h
index 80bebdf43eca..2f34f01b3ea1 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h
@@ -40,6 +40,7 @@
#define DCN3_2_DCFCLK_DS_INIT_KHZ 10000 // Choose 10Mhz for init DCFCLK DS freq
#define SUBVP_HIGH_REFRESH_LIST_LEN 3
#define DCN3_2_MAX_SUBVP_PIXEL_RATE_MHZ 1800
+#define DCN3_2_VMIN_DISPCLK_HZ 717000000
#define TO_DCN32_RES_POOL(pool)\
container_of(pool, struct dcn32_resource_pool, base)
--
2.40.1
