drm/amd/display: Fix timer_per_pixel unit error
authorOliver Logush <oliver.logush@amd.com>
Wed, 23 Jun 2021 19:04:04 +0000 (15:04 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 21 Jul 2021 17:39:25 +0000 (13:39 -0400)
[why]
The units of the time_per_pixel variable were incorrect, this had to be
changed for the code to properly function.

[how]
The change was very straightforward, only required one line of code to
be changed where the calculation was done.

Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Oliver Logush <oliver.logush@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

index 1b05a37..ac981aa 100644 (file)
@@ -2460,7 +2460,7 @@ void dcn20_set_mcif_arb_params(
                                wb_arb_params->cli_watermark[k] = get_wm_writeback_urgent(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
                                wb_arb_params->pstate_watermark[k] = get_wm_writeback_dram_clock_change(&context->bw_ctx.dml, pipes, pipe_cnt) * 1000;
                        }
-                       wb_arb_params->time_per_pixel = 16.0 / context->res_ctx.pipe_ctx[i].stream->phy_pix_clk; /* 4 bit fraction, ms */
+                       wb_arb_params->time_per_pixel = 16.0 * 1000 / (context->res_ctx.pipe_ctx[i].stream->phy_pix_clk / 1000); /* 4 bit fraction, ms */
                        wb_arb_params->slice_lines = 32;
                        wb_arb_params->arbitration_slice = 2;
                        wb_arb_params->max_scaled_time = dcn20_calc_max_scaled_time(wb_arb_params->time_per_pixel,