diff options
| author |   Evan Quan <evan.quan@amd.com> | 2019-01-14 14:45:47 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-01-25 16:15:34 -0500 |
| commit | d7337ca2640cde21ff178bd78f01d94cd5ea2e08 (patch) | |
| tree | 22cb297fb192f51f127e3e51f34ef3e0146968fe /drivers/gpu/drm/amd/powerplay | |
| parent | drm/amd/powerplay: support enabled ppfeatures retrieving and setting V3 (diff) | |
| download | linux-dev-d7337ca2640cde21ff178bd78f01d94cd5ea2e08.tar.xz linux-dev-d7337ca2640cde21ff178bd78f01d94cd5ea2e08.zip | |
drm/amd/powerplay: support retrieving and adjusting SOC clock power levels V2
User can use "pp_dpm_socclk" to retrieve and adjust SOC clock power
levels.
V2: expose this interface for Vega10 and later ASICs only
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@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/vega20_hwmgr.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c index 3e97b9d6f450..e7c890f036fa 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c @@ -2296,6 +2296,34 @@ static int vega20_force_clock_level(struct pp_hwmgr *hwmgr, break; + case PP_SOCCLK: + soft_min_level = mask ? (ffs(mask) - 1) : 0; + soft_max_level = mask ? (fls(mask) - 1) : 0; + + if (soft_max_level >= data->dpm_table.soc_table.count) { + pr_err("Clock level specified %d is over max allowed %d\n", + soft_max_level, + data->dpm_table.soc_table.count - 1); + return -EINVAL; + } + + data->dpm_table.soc_table.dpm_state.soft_min_level = + data->dpm_table.soc_table.dpm_levels[soft_min_level].value; + data->dpm_table.soc_table.dpm_state.soft_max_level = + data->dpm_table.soc_table.dpm_levels[soft_max_level].value; + + ret = vega20_upload_dpm_min_level(hwmgr, FEATURE_DPM_SOCCLK_MASK); + PP_ASSERT_WITH_CODE(!ret, + "Failed to upload boot level to lowest!", + return ret); + + ret = vega20_upload_dpm_max_level(hwmgr, FEATURE_DPM_SOCCLK_MASK); + PP_ASSERT_WITH_CODE(!ret, + "Failed to upload dpm max level to highest!", + return ret); + + break; + case PP_PCIE: soft_min_level = mask ? (ffs(mask) - 1) : 0; soft_max_level = mask ? (fls(mask) - 1) : 0; @@ -2931,6 +2959,23 @@ static int vega20_print_clock_levels(struct pp_hwmgr *hwmgr, (clocks.data[i].clocks_in_khz == now * 10) ? "*" : ""); break; + case PP_SOCCLK: + ret = vega20_get_current_clk_freq(hwmgr, PPCLK_SOCCLK, &now); + PP_ASSERT_WITH_CODE(!ret, + "Attempt to get current socclk freq Failed!", + return ret); + + ret = vega20_get_socclocks(hwmgr, &clocks); + PP_ASSERT_WITH_CODE(!ret, + "Attempt to get soc clk levels Failed!", + return ret); + + for (i = 0; i < clocks.num_levels; i++) + size += sprintf(buf + size, "%d: %uMhz %s\n", + i, clocks.data[i].clocks_in_khz / 1000, + (clocks.data[i].clocks_in_khz == now * 10) ? "*" : ""); + break; + case PP_PCIE: gen_speed = (RREG32_PCIE(smnPCIE_LC_SPEED_CNTL) & PSWUSP0_PCIE_LC_SPEED_CNTL__LC_CURRENT_DATA_RATE_MASK) |