Polaris 20
Idle power went up from ~32 W to ~96 W.
With broken commits:
amdgpu-pci-0100
Adapter: PCI adapter
vddgfx: +1.20 V=20=20
fan1: 888 RPM (min =3D 0 RPM, max =3D 3200 RPM)
temp1: +55.0=C2=B0C (crit =3D +94.0=C2=B0C, hyst =3D -273.1=C2=B0C)
power1: 96.04 W (cap =3D 175.00 W)
Bisected to:
764c85fef41722db0f21558c6c2fb38bee172d19 is the first bad commit
commit 764c85fef41722db0f21558c6c2fb38bee172d19
Author: Yong Zhao <Yong.Zhao=
4;amd.com>
Date: Tue Feb 5 15:17:40 2019 -0500
drm/amdgpu: Fix bugs in setting CP RB/MEC DOORBELL_RANGE registers
CP_RB_DOORBELL_RANGE_LOWER/UPPER and CP_MEC_DOORBELL_RANGE_LOWER/UPPER
are used for waking up an idle scheduler and for power gating support.
Usually the first few doorbells in pci doorbell bar are used for RB
and all leftover for MEC. This patch fixes the incorrect settings.
Theoretically, gfx ring doorbells should come before all MEC doorbells
to be consistent with the design. However, since the doorbell
allocations are agreed by all and we are not free to change them, also
considering the kernel MEC ring doorbells which are before gfx ring
doorbells are not used often, we compromise by leaving the doorbell
allocations unchanged.
Change-Id: I402a56ce9a80e6c2ed2f96be431ae71ca88e73a4
Signed-off-by: Yong Zhao <Y=
ong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
:040000 040000 a5747a6be3d388ae851855eebe7ebbf20488ba22
7b516291deb849c593199a4c8df3ad08c5b7a769 M drivers
After reverting both related commits from current
amd-staging-drm-next (256445aee13f)
9affde0e44af (HEAD -> amd-staging-drm-next) Revert "drm/amdgpu: Fix=
bugs in
setting CP RB/MEC DOORBELL_RANGE registers"
8e73059158d8 Revert "drm/amdgpu: Delete user queue doorbell variables&=
quot;
256445aee13f (origin/amd-staging-drm-next) drm/amdgpu: remove some old unus=
ed
dpm helpers
I get these numbers, again (somewhat higher then Win... as some other point=
ed
out):
amdgpu-pci-0100
Adapter: PCI adapter
vddgfx: +0.75 V=20=20
fan1: 900 RPM (min =3D 0 RPM, max =3D 3200 RPM)
temp1: +30.0=C2=B0C (crit =3D +94.0=C2=B0C, hyst =3D -273.1=C2=B0C)
power1: 32.16 W (cap =3D 175.00 W)