diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2025-08-08 13:12:07 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-28 16:34:36 +0200 |
| commit | 80eddbd0182ac6d2b5eb76f40654059e216e29a3 (patch) | |
| tree | a6c3b57c0554fb7f59791fbbdd0fb3c45a9d4693 | |
| parent | df647220b21850f060994093ceecc3bb87d736cd (diff) | |
drm/amdgpu/swm14: Update power limit logic
commit 79e25cd06e85105c75701ef1773c6c64bb304091 upstream.
Take into account the limits from the vbios. Ported
from the SMU13 code.
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4352
Reviewed-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 203cc7f1dd86f2c8de5c3c6182f19adac7c9c206)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c index 82c2db972491..7c8d19cfa324 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0_2_ppt.c @@ -1689,9 +1689,11 @@ static int smu_v14_0_2_get_power_limit(struct smu_context *smu, uint32_t *min_power_limit) { struct smu_table_context *table_context = &smu->smu_table; + struct smu_14_0_2_powerplay_table *powerplay_table = + table_context->power_play_table; PPTable_t *pptable = table_context->driver_pptable; CustomSkuTable_t *skutable = &pptable->CustomSkuTable; - uint32_t power_limit; + uint32_t power_limit, od_percent_upper = 0, od_percent_lower = 0; uint32_t msg_limit = pptable->SkuTable.MsgLimits.Power[PPT_THROTTLER_PPT0][POWER_SOURCE_AC]; if (smu_v14_0_get_current_power_limit(smu, &power_limit)) @@ -1704,11 +1706,29 @@ static int smu_v14_0_2_get_power_limit(struct smu_context *smu, if (default_power_limit) *default_power_limit = power_limit; - if (max_power_limit) - *max_power_limit = msg_limit; + if (powerplay_table) { + if (smu->od_enabled && + smu_v14_0_2_is_od_feature_supported(smu, PP_OD_FEATURE_PPT_BIT)) { + od_percent_upper = pptable->SkuTable.OverDriveLimitsBasicMax.Ppt; + od_percent_lower = pptable->SkuTable.OverDriveLimitsBasicMin.Ppt; + } else if (smu_v14_0_2_is_od_feature_supported(smu, PP_OD_FEATURE_PPT_BIT)) { + od_percent_upper = 0; + od_percent_lower = pptable->SkuTable.OverDriveLimitsBasicMin.Ppt; + } + } + + dev_dbg(smu->adev->dev, "od percent upper:%d, od percent lower:%d (default power: %d)\n", + od_percent_upper, od_percent_lower, power_limit); + + if (max_power_limit) { + *max_power_limit = msg_limit * (100 + od_percent_upper); + *max_power_limit /= 100; + } - if (min_power_limit) - *min_power_limit = 0; + if (min_power_limit) { + *min_power_limit = power_limit * (100 + od_percent_lower); + *min_power_limit /= 100; + } return 0; } |