diff options
| author | Darren Powell <darren.powell@amd.com> | 2021-08-20 22:08:07 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-10-13 14:15:02 -0400 |
| commit | 02f8aa9f2a3249d32316d745d1e4a3afef4180e5 (patch) | |
| tree | b8eaa2b9d308a8cd27aeb4e5f374e40eaf917376 /drivers/gpu/drm/amd/pm/swsmu/smu11 | |
| parent | 2d1ac1cbe57b306b244c43aa11610b89ea5a3178 (diff) | |
drm/amd/pm: Fix incorrect power limit readback in smu11 if POWER_SOURCE_DC
when smu->adev->pm.ac_power == 0, message parameter with bit 16 set is saved
to smu->current_power_limit.
Fixes: 0cb4c62125a9 ("drm/amd/pm: correct power limit setting for SMU V11)"
Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/swsmu/smu11')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c index b9386c55bd85..aa4d34f35c33 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c @@ -984,6 +984,7 @@ int smu_v11_0_set_power_limit(struct smu_context *smu, { int power_src; int ret = 0; + uint32_t limit_param; if (limit_type != SMU_DEFAULT_PPT_LIMIT) return -EINVAL; @@ -1006,10 +1007,10 @@ int smu_v11_0_set_power_limit(struct smu_context *smu, * BIT 16-23: PowerSource * BIT 0-15: PowerLimit */ - limit &= 0xFFFF; - limit |= 0 << 24; - limit |= (power_src) << 16; - ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_SetPptLimit, limit, NULL); + limit_param = (limit & 0xFFFF); + limit_param |= 0 << 24; + limit_param |= (power_src) << 16; + ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_SetPptLimit, limit_param, NULL); if (ret) { dev_err(smu->adev->dev, "[%s] Set power limit Failed!\n", __func__); return ret; |