diff options
author | Rex Zhu <Rex.Zhu@amd.com> | 2018-05-08 14:20:25 +0800 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2018-05-15 13:44:22 -0500 |
commit | 4ccd2d931c4bbebbca5a5e233f0d28ed57482e90 (patch) | |
tree | e819b80495c2bcb4be84ae9ff44a5e060b4618ba /drivers/gpu/drm/amd/powerplay | |
parent | 267256b5d884b1494cf30636c66cd95eeb25f41f (diff) | |
download | linux-4ccd2d931c4bbebbca5a5e233f0d28ed57482e90.tar.bz2 |
drm/amd/pp: Implement force_clock_level for RV
under manual dpm mode, user can set gfx/mem clock
through sysfs pp_dpm_sclk/mclk on Rv.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay')
-rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c index be6d6e202819..8b75f525fe49 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c @@ -766,6 +766,51 @@ static int smu10_get_dal_power_level(struct pp_hwmgr *hwmgr, static int smu10_force_clock_level(struct pp_hwmgr *hwmgr, enum pp_clock_type type, uint32_t mask) { + struct smu10_hwmgr *data = hwmgr->backend; + struct smu10_voltage_dependency_table *mclk_table = + data->clock_vol_info.vdd_dep_on_fclk; + uint32_t low, high; + + low = mask ? (ffs(mask) - 1) : 0; + high = mask ? (fls(mask) - 1) : 0; + + switch (type) { + case PP_SCLK: + if (low > 2 || high > 2) { + pr_info("Currently sclk only support 3 levels on RV\n"); + return -EINVAL; + } + + smum_send_msg_to_smc_with_parameter(hwmgr, + PPSMC_MSG_SetHardMinGfxClk, + low == 2 ? data->gfx_max_freq_limit/100 : + low == 1 ? SMU10_UMD_PSTATE_GFXCLK : + data->gfx_min_freq_limit/100); + + smum_send_msg_to_smc_with_parameter(hwmgr, + PPSMC_MSG_SetSoftMaxGfxClk, + high == 0 ? data->gfx_min_freq_limit/100 : + high == 1 ? SMU10_UMD_PSTATE_GFXCLK : + data->gfx_max_freq_limit/100); + break; + + case PP_MCLK: + if (low > mclk_table->count - 1 || high > mclk_table->count - 1) + return -EINVAL; + + smum_send_msg_to_smc_with_parameter(hwmgr, + PPSMC_MSG_SetHardMinFclkByFreq, + mclk_table->entries[low].clk/100); + + smum_send_msg_to_smc_with_parameter(hwmgr, + PPSMC_MSG_SetSoftMaxFclkByFreq, + mclk_table->entries[high].clk/100); + break; + + case PP_PCIE: + default: + break; + } return 0; } |