PMFW only returns 0 on master die and sends NACK back on other dies for the message.
Signed-off-by: Tao Zhou <[email protected]> --- .../gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c index 261892977654..121b0ab5823f 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c @@ -1625,10 +1625,18 @@ static int aldebaran_set_df_cstate(struct smu_context *smu, static int aldebaran_allow_xgmi_power_down(struct smu_context *smu, bool en) { - return smu_cmn_send_smc_msg_with_param(smu, - SMU_MSG_GmiPwrDnControl, - en ? 0 : 1, - NULL); + int ret; + + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_GmiPwrDnControl, + en ? 0 : 1, + NULL); + /* The message only works on master die and NACK will be sent + back for other dies, ingore CMD failure for the message */ + if (ret == -EIO) + ret = 0; + + return ret; } static const struct throttling_logging_label { -- 2.17.1
