linux-stable.git/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c, branch v5.4.40 Linux kernel stable tree drm/amdgpu: Fix oops when pp_funcs is unset in ACPI event 2020-05-10T08:31:29+00:00 Aaron Ma aaron.ma@canonical.com 2020-04-03T14:34:19+00:00 b8bb9c3192f948e12d2d045a09ea378aebac1480 commit 5932d260a8d85a103bd6c504fbb85ff58b156bf9 upstream. On ARCTURUS and RENOIR, powerplay is not supported yet. When plug in or unplug power jack, ACPI event will issue. Then kernel NULL pointer BUG will be triggered. Check for NULL pointers before calling. Signed-off-by: Aaron Ma <aaron.ma@canonical.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 5932d260a8d85a103bd6c504fbb85ff58b156bf9 upstream.

On ARCTURUS and RENOIR, powerplay is not supported yet.
When plug in or unplug power jack, ACPI event will issue.
Then kernel NULL pointer BUG will be triggered.
Check for NULL pointers before calling.

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drm/amd/amdgpu: hide voltage and power sensors on SI and KV parts 2019-08-29T20:52:32+00:00 Jean Delvare jdelvare@suse.de 2019-08-28T08:27:29+00:00 1cdd229bec36212261f69702464913b5c2581d4d The driver does not support these sensors yet and there is no point in creating sysfs attributes which will always return an error. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
The driver does not support these sensors yet and there is no point in
creating sysfs attributes which will always return an error.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/powerplay: expose supported clock domains only through sysfs 2019-08-22T03:17:28+00:00 Evan Quan evan.quan@amd.com 2019-08-16T03:34:12+00:00 9aef809b5cc0ab27b1cdebb3f800a4bacf7f603e Do not expose those unsupported clock domains through sysfs on Arcturus. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Do not expose those unsupported clock domains through sysfs on
Arcturus.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/powerplay: correct UVD/VCE/VCN power status retrieval 2019-07-31T04:48:34+00:00 Evan Quan evan.quan@amd.com 2019-07-22T02:42:29+00:00 1f96ecef6f0137791b5a37e005e65c42ce927e62 VCN should be used for Vega20 later ASICs while UVD and VCE are for previous ASICs. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
VCN should be used for Vega20 later ASICs while UVD and VCE
are for previous ASICs.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/powerplay: implment sysfs feature status function in smu 2019-07-31T04:48:32+00:00 Kevin Wang kevin1.wang@amd.com 2019-07-25T03:47:44+00:00 98eb03bbf0175f009a74c80ac12b91a9680292f4 1. Unified feature enable status format in sysfs 2. Rename ppfeature to pp_features to adapt other pp sysfs node name 3. this function support all asic, not asic related function. Signed-off-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Acked-by: Rui Huang <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
1. Unified feature enable status format in sysfs
2. Rename ppfeature to pp_features to adapt other pp sysfs node name
3. this function support all asic, not asic related function.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Acked-by: Rui Huang <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/powerplay: fix null pointer dereference around dpm state relates 2019-07-31T04:23:29+00:00 Evan Quan evan.quan@amd.com 2019-07-25T04:10:34+00:00 f0d2a7dc1154ed680a8422916ab6a38860800de4 DPM state relates are not supported on the new SW SMU ASICs. But still it's not OK to trigger null pointer dereference on accessing them. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
DPM state relates are not supported on the new SW SMU ASICs. But still
it's not OK to trigger null pointer dereference on accessing them.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/powerplay: minor fixes around SW SMU power and fan setting 2019-07-31T04:23:21+00:00 Evan Quan evan.quan@amd.com 2019-07-24T06:06:09+00:00 fcd90fee8ac22da3bce1c6652cf36bc24e7a0749 Add checking for possible invalid input and null pointer. And drop redundant code. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Add checking for possible invalid input and null pointer. And
drop redundant code.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/powerplay: some cosmetic fixes 2019-07-31T04:19:13+00:00 Evan Quan evan.quan@amd.com 2019-07-23T08:23:28+00:00 780f3a9c5b9f739d77cc15fac58a97c3ec6cad99 Drop redundant check, duplicate check, duplicate setting and fix the return value. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Drop redundant check, duplicate check, duplicate setting
and fix the return value.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu/smu: move fan rpm query into the asic specific code 2019-07-22T19:57:39+00:00 Alex Deucher alexander.deucher@amd.com 2019-07-18T20:25:04+00:00 95ccc155081be9cea95202d290fe06637f47c8de On vega20, there is an SMU message to query it. On navi, it's fetched from the metrics table. Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
On vega20, there is an SMU message to query it.  On navi, it's fetched
from the metrics table.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu/pm: remove check for pp funcs in freq sysfs handlers 2019-07-18T19:11:47+00:00 Alex Deucher alexander.deucher@amd.com 2019-07-17T18:10:39+00:00 8a5b5d425e5454fdef0e5457826f4aa7f96cf463 The dpm sensor function already does this for us. This fixes the freq*_input files with the new SMU implementation. Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
The dpm sensor function already does this for us.  This fixes
the freq*_input files with the new SMU implementation.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>