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 <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Aurabindo Pillai <[email protected]> --- 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
