diff options
| author | Vladimir Stempen <vladimir.stempen@amd.com> | 2022-09-22 15:03:05 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-10-10 17:14:46 -0400 |
| commit | eae2331899f9dcc923d37d1d753f2de847c92359 (patch) | |
| tree | 9a3ce36b159280c90243379b6549b41a66e71afd /drivers | |
| parent | 99243fd1f3ca40d487209ac76241de0478962a9d (diff) | |
| download | linux-eae2331899f9dcc923d37d1d753f2de847c92359.tar.gz | |
drm/amd/display: properly configure DCFCLK when enable/disable Freesync
[Why]
Bandwidth validation is using Freesync parameters
from previous Freesync state.
Bandwidth validation ignores DCFCLK calculated
after Freesync parameters are configured
[How]
Set Freesync bandwidth parameters to its default
state before running bandwidth validation.
Take DCFCLK calculated after Freesync bandwidth
parameters are assigned and bandwidth is
recalculated.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Vladimir Stempen <vladimir.stempen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 7 |
2 files changed, 13 insertions, 1 deletions
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 9585b25f10e5..a88dd7b3d1c1 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c @@ -1805,6 +1805,13 @@ bool dcn32_validate_bandwidth(struct dc *dc, int pipe_cnt = 0; display_e2e_pipe_params_st *pipes = kzalloc(dc->res_pool->pipe_count * sizeof(display_e2e_pipe_params_st), GFP_KERNEL); struct mall_temp_config mall_temp_config; + + /* To handle Freesync properly, setting FreeSync DML parameters + * to its default state for the first stage of validation + */ + context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching = false; + context->bw_ctx.dml.soc.dram_clock_change_requirement_final = true; + DC_LOGGER_INIT(dc->ctx->logger); /* For fast validation, there are situations where a shallow copy of 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 6bdd509d292a..819de0f11012 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 @@ -1769,6 +1769,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context, int i, pipe_idx, vlevel_temp = 0; double dcfclk = dcn3_2_soc.clock_limits[0].dcfclk_mhz; double dcfclk_from_validation = context->bw_ctx.dml.vba.DCFCLKState[vlevel][context->bw_ctx.dml.vba.maxMpcComb]; + double dcfclk_from_fw_based_mclk_switching = dcfclk_from_validation; bool pstate_en = context->bw_ctx.dml.vba.DRAMClockChangeSupport[vlevel][context->bw_ctx.dml.vba.maxMpcComb] != dm_dram_clock_change_unsupported; unsigned int dummy_latency_index = 0; @@ -1804,7 +1805,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context, dc->clk_mgr->bw_params->wm_table.nv_entries[WM_A].dml_input.pstate_latency_us; dcn32_internal_validate_bw(dc, context, pipes, &pipe_cnt, &vlevel, false); maxMpcComb = context->bw_ctx.dml.vba.maxMpcComb; - dcfclk = context->bw_ctx.dml.vba.DCFCLKState[vlevel][context->bw_ctx.dml.vba.maxMpcComb]; + dcfclk_from_fw_based_mclk_switching = context->bw_ctx.dml.vba.DCFCLKState[vlevel][context->bw_ctx.dml.vba.maxMpcComb]; pstate_en = context->bw_ctx.dml.vba.DRAMClockChangeSupport[vlevel][maxMpcComb] != dm_dram_clock_change_unsupported; } @@ -1890,6 +1891,10 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context, pipes[0].clks_cfg.dcfclk_mhz = dcfclk_from_validation; pipes[0].clks_cfg.socclk_mhz = context->bw_ctx.dml.soc.clock_limits[vlevel].socclk_mhz; + if (context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching) { + pipes[0].clks_cfg.dcfclk_mhz = dcfclk_from_fw_based_mclk_switching; + } + if (dc->clk_mgr->bw_params->wm_table.nv_entries[WM_C].valid) { min_dram_speed_mts = context->bw_ctx.dml.vba.DRAMSpeed; min_dram_speed_mts_margin = 160; |