Comment=
# 8
on bug 96326<=
/a>
from Jan Ziak
(In reply to Alex Deucher from comment #7)
> (In reply to Jan Ziak from comment #6)
> > (In reply to Alex Deucher from comment #3)
> > > Please attach your xorg log and dmesg output.
> >=20
> > Upstream Linux kernel does not support variable mclk on R9 390. I=
enabled
> > variable mclk by patching some code in drivers/gpu/drm/amd/amdgpu=
/ (mostly
> > ci_dpm.c).
>=20
> What patch(es) did you use?
I added a function based on ci_dpm_force_state_mclk() in ci_dpm.c.
mask is 0x3.
----
static int ci_dpm_force_state_mclk_mask(struct amdgpu_device *adev, u32 mas=
k) {
struct ci_power_info *pi =3D ci_get_pi(adev);
if (!pi->mclk_dpm_key_disabled) {
PPSMC_Result smc_result =3D
amdgpu_ci_send_msg_to_smc_with_parameter(adev,
PPSMC_MSG_MCLKDPM_SetEnabledMask, mask);
printk("[atomsymbol] %s:%d: mask=3D0x%X, ok=3D%d\n", =
__FUNCTION__,
__LINE__, mask, smc_result =3D=3D PPSMC_Result_OK);
if (smc_result !=3D PPSMC_Result_OK)
return -EINVAL;
}
return 0;
}
----
/sys/class/drm/card?/device/power_dpm_force_performance_level is set to &qu=
ot;auto".