diff options
| author |   Aric Cyr <aric.cyr@amd.com> | 2021-06-21 12:01:45 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-07-08 15:16:44 -0400 |
| commit | babbdf5b3a8b7c4f5e169a7a3300d2a743c10ac6 (patch) | |
| tree | 4cd9978ba35f8ecf5c430b40084160a4831ed3f8 /drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10 | |
| parent | drm/amd/display: 3.2.142 (diff) | |
| download | linux-dev-babbdf5b3a8b7c4f5e169a7a3300d2a743c10ac6.tar.xz linux-dev-babbdf5b3a8b7c4f5e169a7a3300d2a743c10ac6.zip | |
drm/amd/display: Round KHz up when calculating clock requests
[Why]
When requesting clocks from SMU which takes MHz inputs, DC will round
down KHz when converting to MHz, thus potentially requesting too low a
clock value.
[How]
Round up (ceil) when converting KHz to MHz for clock requests to SMU.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c | 4 |
2 files changed, 8 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.c index e133edc587d3..76ec8ec92efd 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr.c @@ -264,9 +264,9 @@ static void rv1_update_clocks(struct clk_mgr *clk_mgr_base, if (pp_smu->set_hard_min_fclk_by_freq && pp_smu->set_hard_min_dcfclk_by_freq && pp_smu->set_min_deep_sleep_dcfclk) { - pp_smu->set_hard_min_fclk_by_freq(&pp_smu->pp_smu, new_clocks->fclk_khz / 1000); - pp_smu->set_hard_min_dcfclk_by_freq(&pp_smu->pp_smu, new_clocks->dcfclk_khz / 1000); - pp_smu->set_min_deep_sleep_dcfclk(&pp_smu->pp_smu, (new_clocks->dcfclk_deep_sleep_khz + 999) / 1000); + pp_smu->set_hard_min_fclk_by_freq(&pp_smu->pp_smu, khz_to_mhz_ceil(new_clocks->fclk_khz)); + pp_smu->set_hard_min_dcfclk_by_freq(&pp_smu->pp_smu, khz_to_mhz_ceil(new_clocks->dcfclk_khz)); + pp_smu->set_min_deep_sleep_dcfclk(&pp_smu->pp_smu, khz_to_mhz_ceil(new_clocks->dcfclk_deep_sleep_khz)); } } @@ -284,9 +284,9 @@ static void rv1_update_clocks(struct clk_mgr *clk_mgr_base, if (pp_smu->set_hard_min_fclk_by_freq && pp_smu->set_hard_min_dcfclk_by_freq && pp_smu->set_min_deep_sleep_dcfclk) { - pp_smu->set_hard_min_fclk_by_freq(&pp_smu->pp_smu, new_clocks->fclk_khz / 1000); - pp_smu->set_hard_min_dcfclk_by_freq(&pp_smu->pp_smu, new_clocks->dcfclk_khz / 1000); - pp_smu->set_min_deep_sleep_dcfclk(&pp_smu->pp_smu, (new_clocks->dcfclk_deep_sleep_khz + 999) / 1000); + pp_smu->set_hard_min_fclk_by_freq(&pp_smu->pp_smu, khz_to_mhz_ceil(new_clocks->fclk_khz)); + pp_smu->set_hard_min_dcfclk_by_freq(&pp_smu->pp_smu, khz_to_mhz_ceil(new_clocks->dcfclk_khz)); + pp_smu->set_min_deep_sleep_dcfclk(&pp_smu->pp_smu, khz_to_mhz_ceil(new_clocks->dcfclk_deep_sleep_khz)); } } } diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c index dbc7cde00433..fe18bb9e19aa 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn10/rv1_clk_mgr_vbios_smu.c @@ -130,7 +130,7 @@ int rv1_vbios_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_di actual_dispclk_set_mhz = rv1_vbios_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_SetDispclkFreq, - requested_dispclk_khz / 1000); + khz_to_mhz_ceil(requested_dispclk_khz)); if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) { if (dmcu && dmcu->funcs->is_dmcu_initialized(dmcu)) { @@ -150,7 +150,7 @@ int rv1_vbios_smu_set_dprefclk(struct clk_mgr_internal *clk_mgr) actual_dprefclk_set_mhz = rv1_vbios_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_SetDprefclkFreq, - clk_mgr->base.dprefclk_khz / 1000); + khz_to_mhz_ceil(clk_mgr->base.dprefclk_khz)); /* TODO: add code for programing DP DTO, currently this is down by command table */ |