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drm/amd/display: use min disp and dpp clk debug option for dcn2

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This allows to set a minimum display and dpp clock on dcn2+ HW
by adjusting clocks used for dml calculations.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dmytro Laktyushkin 2019-07-02 14:51:01 -04:00 committed by Alex Deucher
parent 39bca3599a
commit e9bcc1e030
2 changed files with 5 additions and 4 deletions
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1
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -344,6 +344,7 @@ struct dc_debug_options {
bool disable_pplib_wm_range;
enum wm_report_mode pplib_wm_report_mode;
unsigned int min_disp_clk_khz;
unsigned int min_dpp_clk_khz;
int sr_exit_time_dpm0_ns;
int sr_enter_plus_exit_time_dpm0_ns;
int sr_exit_time_ns;

8
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
View File

@ -2170,10 +2170,6 @@ bool dcn20_fast_validate_bw(
}
if (force_split && context->bw_ctx.dml.vba.NoOfDPP[vlevel][context->bw_ctx.dml.vba.maxMpcComb][pipe_idx] == 1)
context->bw_ctx.dml.vba.RequiredDPPCLK[vlevel][context->bw_ctx.dml.vba.maxMpcComb][pipe_idx] /= 2;
if (dc->config.forced_clocks == true) {
context->bw_ctx.dml.vba.RequiredDPPCLK[vlevel][context->bw_ctx.dml.vba.maxMpcComb][pipe_idx] =
context->bw_ctx.dml.soc.clock_limits[0].dppclk_mhz;
}
if (!pipe->top_pipe && !pipe->plane_state && context->bw_ctx.dml.vba.ODMCombineEnabled[pipe_idx]) {
hsplit_pipe = find_idle_secondary_pipe(&context->res_ctx, dc->res_pool, pipe);
ASSERT(hsplit_pipe);
@ -2293,6 +2289,10 @@ void dcn20_calculate_wm(
pipes[pipe_cnt].clks_cfg.dispclk_mhz = context->bw_ctx.dml.soc.clock_limits[0].dispclk_mhz;
pipes[pipe_cnt].clks_cfg.dppclk_mhz = context->bw_ctx.dml.soc.clock_limits[0].dppclk_mhz;
}
if (dc->debug.min_disp_clk_khz > pipes[pipe_cnt].clks_cfg.dispclk_mhz * 1000)
pipes[pipe_cnt].clks_cfg.dispclk_mhz = dc->debug.min_disp_clk_khz / 1000.0;
if (dc->debug.min_dpp_clk_khz > pipes[pipe_cnt].clks_cfg.dppclk_mhz * 1000)
pipes[pipe_cnt].clks_cfg.dppclk_mhz = dc->debug.min_dpp_clk_khz / 1000.0;
pipe_cnt++;
}