DP/HDMI audio on AMD PRO VII stops working after S3:
[  149.450391] amdgpu 0000:63:00.0: amdgpu: MODE1 reset
[  149.450395] amdgpu 0000:63:00.0: amdgpu: GPU mode1 reset
[  149.450494] amdgpu 0000:63:00.0: amdgpu: GPU psp mode1 reset
[  149.983693] snd_hda_intel 0000:63:00.1: refused to change power state from D0 to D3hot
[  150.003439] amdgpu 0000:63:00.0: refused to change power state from D0 to D3hot
...
[  155.432975] snd_hda_intel 0000:63:00.1: CORB reset timeout#2, CORBRP = 65535

The offending commit is daf8de08 ("drm/amdgpu: always reset the asic in
suspend (v2)"). Commit 34452ac3 ("drm/amdgpu: don't use BACO for
reset in S3 ") doesn't help, so the issue is something different.

Assuming that to make HDA resume to D0 fully realized, it needs to be
successfully put to D3 first. And this guesswork proves working, by
moving amdgpu_asic_reset() to noirq callback, so it's called after HDA
function is in D3.

Fixes: daf8de08 ("drm/amdgpu: always reset the asic in suspend (v2)")
Signed-off-by: NKai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Compute-only GPUs have more than 8 VMIDs allocated to KFD. Fix
this by passing correct number of VMIDs to HWS

v2: squash in warning fix (Alex)
Signed-off-by: NTushar Patel <tushar.patel@amd.com>
Reviewed-by: NFelix Kuehling <felix.kuehling@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

vcn fwlog is for debugging purpose only,
by default, it is disabled.
Signed-off-by: NRuijing Dong <ruijing.dong@amd.com>
Reviewed-by: NLeo Liu <leo.liu@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This will allow to enable the tests only after latest fix
after which the tests passed on my system.

I tested on NV21 standalone and Vega 10 and Polaris as
pair with DRI_PRIME.

It's possible there might be still issues on ASICs i don't
have at my posession but that that the point of enbling
the tests finally - if other people during testing will
encounter errors they will report and I will be able to fix.

The releated merge request for enabling libdrm tests suite  is in
https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/227Signed-off-by: NAndrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

According to my investigation of the state of PCI
reset recently it's not working. The reason is
due to the fact the kernel PCI code rejects SBR
when there are more then one PF under same bridge
which we always have (at least AUDIO PF but usually
more) and that because SBR will reset all the PFS
and devices under the same bridge as you and you
cannot assume they support SBR.
Once we anble FLR support we can reenable this option as
FLR is doable on single PF and doens't have this
restriction.
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAndrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This parameter controls xGMI p2p communication, which is enabled by
default. However, it can be disabled by setting it to 0. In case xGMI
p2p is disabled in a dGPU, PCIe p2p interface will be used instead.
This parameter is ignored in GPUs that do not support xGMI
p2p configuration.
Signed-off-by: NAlex Sierra <alex.sierra@amd.com>
Acked-by: NLuben Tuikov <luben.tuikov@amd.com>
Acked-by: NHarish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: NFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

commit 0064b0ce ("drm/amd/pm: enable ASPM by default") enabled ASPM
by default but a variety of hardware configurations it turns out that this
caused a regression.

* PPC64LE hardware does not support ASPM at a hardware level.
  CONFIG_PCIEASPM is often disabled on these architectures.
* Some dGPUs on ALD platforms don't work with ASPM enabled and PCIe subsystem
  disables it

Check with the PCIe subsystem to see that ASPM has been enabled
or not.

Fixes: 0064b0ce ("drm/amd/pm: enable ASPM by default")
Link: https://wiki.raptorcs.com/w/images/a/ad/P9_PHB_version1.0_27July2018_pub.pdf
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1723
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1739
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1885
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1907
Tested-by: koba.ko@canonical.com
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

This test is not particularly useful now that GTT and GART
are decoupled in the driver.
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Now that we expose the benchmarks via debugfs, there is no
longer a need for the module parameter.
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NPaul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Evaluating `pcie_aspm_enabled` as part of driver probe has the implication
that if one PCIe bridge with an AMD GPU connected doesn't support ASPM
then none of them do.  This is an invalid assumption as the PCIe core will
configure ASPM for individual PCIe bridges.

Create a new helper function that can be called by individual dGPUs to
react to the `amdgpu_aspm` module parameter without having negative results
for other dGPUs on the PCIe bus.
Suggested-by: NLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: NLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

commit 0064b0ce ("drm/amd/pm: enable ASPM by default") enabled ASPM
by default but a variety of hardware configurations it turns out that this
caused a regression.

* PPC64LE hardware does not support ASPM at a hardware level.
  CONFIG_PCIEASPM is often disabled on these architectures.
* Some dGPUs on ALD platforms don't work with ASPM enabled and PCIe subsystem
  disables it

Check with the PCIe subsystem to see that ASPM has been enabled
or not.

Fixes: 0064b0ce ("drm/amd/pm: enable ASPM by default")
Link: https://wiki.raptorcs.com/w/images/a/ad/P9_PHB_version1.0_27July2018_pub.pdf
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1723
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1739
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1885
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1907
Tested-by: koba.ko@canonical.com
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Since this is an existing asic, adjust the code to follow
the same logic as previously so the driver state is consistent.

No functional change intended.
Acked-by: NHuang Rui <ray.huang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

These have been at production level for a while. Drop
the flag.
Reviewed-by: NFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

dGPUs connected to Intel systems configured for suspend to idle
will not have the power rails cut at suspend and resetting the GPU
may lead to problematic behaviors.

Fixes: e25443d2 ("drm/amdgpu: add a dev_pm_ops prepare callback (v2)")
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1879Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This will cause misconfigured systems to not run the GPU suspend
routines.

* In APUs that are properly configured system will go into s2idle.
* In APUs that are intended to be S3 but user selects
  s2idle the GPU will stay fully powered for the suspend.
* In APUs that are intended to be s2idle and system misconfigured
  the GPU will stay fully powered for the suspend.
* In systems that are intended to be s2idle, but AMD dGPU is also
  present, the dGPU will go through S3
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

dGPUs connected to Intel systems configured for suspend to idle
will not have the power rails cut at suspend and resetting the GPU
may lead to problematic behaviors.

Fixes: e25443d2 ("drm/amdgpu: add a dev_pm_ops prepare callback (v2)")
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1879Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This will cause misconfigured systems to not run the GPU suspend
routines.

* In APUs that are properly configured system will go into s2idle.
* In APUs that are intended to be S3 but user selects
  s2idle the GPU will stay fully powered for the suspend.
* In APUs that are intended to be s2idle and system misconfigured
  the GPU will stay fully powered for the suspend.
* In systems that are intended to be s2idle, but AMD dGPU is also
  present, the dGPU will go through S3
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

So mesa and tools know when this is available.

Mesa MR: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/207Reviewed-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Extend secondary function handling for runtime pm beyond audio
to USB and UCSI.
Reviewed-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Seems more logical to enable runtime pm at the end of
the init sequence so we don't end up entering runtime
suspend before init is finished.
Reviewed-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Older radeon boards (r2xx-r5xx) had secondary PCI functions
which we solely there for supporting multi-head on OSs with
special requirements.  Add them to the unsupported list
as well so we don't attempt to bind to them.  The driver
would fail to bind to them anyway, but this does so
in a cleaner way that should not confuse the user.
Acked-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Older radeon boards (r2xx-r5xx) had secondary PCI functions
which we solely there for supporting multi-head on OSs with
special requirements.  Add them to the unsupported list
as well so we don't attempt to bind to them.  The driver
would fail to bind to them anyway, but this does so
in a cleaner way that should not confuse the user.

Cc: stable@vger.kernel.org
Acked-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Support for IP based discovery is in place now so this
check is no longer required.
Reviewed-by: NHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

eb4fd29a ("drm/amdgpu: bind to any 0x1002 PCI diplay class device") added
generic bindings to amdgpu so that that it binds to all display class devices
with VID 0x1002 and then rejects those in amdgpu_pci_probe.

Unfortunately it reuses a driver_data value of 0 to detect those new bindings,
which is already used to denote CHIP_TAHITI ASICs.

The driver_data value given to those new bindings was changed in
dd0761fd24ea1 ("drm/amdgpu: set CHIP_IP_DISCOVERY as the asic type by default")
to CHIP_IP_DISCOVERY (=36), but it seems that the check in amdgpu_pci_probe
was forgotten to be changed. Therefore, it still rejects Tahiti GPUs.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1860
Fixes: eb4fd29a ("drm/amdgpu: bind to any 0x1002 PCI diplay class device")
Signed-off-by: NLukas Fink <lukas.fink1@gmail.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Support for IP based discovery is in place now so this
check is no longer required.
Reviewed-by: NHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

eb4fd29a ("drm/amdgpu: bind to any 0x1002 PCI diplay class device") added
generic bindings to amdgpu so that that it binds to all display class devices
with VID 0x1002 and then rejects those in amdgpu_pci_probe.

Unfortunately it reuses a driver_data value of 0 to detect those new bindings,
which is already used to denote CHIP_TAHITI ASICs.

The driver_data value given to those new bindings was changed in
dd0761fd24ea1 ("drm/amdgpu: set CHIP_IP_DISCOVERY as the asic type by default")
to CHIP_IP_DISCOVERY (=36), but it seems that the check in amdgpu_pci_probe
was forgotten to be changed. Therefore, it still rejects Tahiti GPUs.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1860
Fixes: eb4fd29a ("drm/amdgpu: bind to any 0x1002 PCI diplay class device")

Cc: stable@vger.kernel.org
Signed-off-by: NLukas Fink <lukas.fink1@gmail.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

[Why&How]
Freesync Video Mode is a experimental feature previously,
and need to be enabled by kernel parameter. We enable it
by default with removing module paramterter in amdgpu_dm.

v2: squash the patches together
Signed-off-by: NSolomon Chiu <solomon.chiu@amd.com>
Reviewed-by: NAurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This makes it clearer which codepaths are in use specifically in
one state or the other.
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Acked-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

If we are the primary adapter (i.e., the one used by the firwmare
framebuffer), disable runtime pm.  This fixes a regression caused
by commit 55285e21 which results in the displays waking up
shortly after they go to sleep due to the device coming out of
runtime suspend and sending a hotplug uevent.

v2: squash in reworked fix from Evan

Fixes: 55285e21 ("fbdev/efifb: Release PCI device's runtime PM ref during FB destroy")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=215203
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1840Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

If the platform suspend happens to fail and the power rail
is not turned off, the GPU will be in an unknown state on
resume, so reset the asic so that it will be in a known
good state on resume even if the platform suspend failed.

v2: handle s0ix
Acked-by: NLuben Tuikov <luben.tuikov@amd.com>
Acked-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

By setting mp1_state as PP_MP1_STATE_UNLOAD, MP1 will do some proper cleanups and
put itself into a state ready for PNP. That can workaround some random resuming
failure observed on BOCO capable platforms.
Signed-off-by: NEvan Quan <evan.quan@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NGuchun Chen <guchun.chen@amd.com>
Reviewed-by: NLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

It's not only supported by HG/PX laptops.  It's supported
by all dGPUs which supports BOCO/BACO functionality (runtime
D3).

BOCO - Bus Off, Chip Off.  The entire chip is powered off.
       This is controlled by ACPI.
BACO - Bus Active, Chip Off.  The chip still shows up
       on the PCI bus, but the device itself is powered
       down.

v2: fix missed HG/PX reference
Reviewed-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

By setting mp1_state as PP_MP1_STATE_UNLOAD, MP1 will do some proper cleanups and
put itself into a state ready for PNP. That can workaround some random resuming
failure observed on BOCO capable platforms.
Signed-off-by: NEvan Quan <evan.quan@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NGuchun Chen <guchun.chen@amd.com>
Reviewed-by: NLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

If the platform suspend happens to fail and the power rail
is not turned off, the GPU will be in an unknown state on
resume, so reset the asic so that it will be in a known
good state on resume even if the platform suspend failed.

v2: handle s0ix
Acked-by: NLuben Tuikov <luben.tuikov@amd.com>
Acked-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

It's not only supported by HG/PX laptops.  It's supported
by all dGPUs which supports BOCO/BACO functionality (runtime
D3).

BOCO - Bus Off, Chip Off.  The entire chip is powered off.
       This is controlled by ACPI.
BACO - Bus Active, Chip Off.  The chip still shows up
       on the PCI bus, but the device itself is powered
       down.

v2: fix missed HG/PX reference
Reviewed-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

amdgpu_ucode_get_load_type() does not interpret this parameter as
documented.  It is ignored for many ASIC types (which presumably
only support one load_type), and when not ignored it is only used
to force direct loading instead of PSP loading.  SMU loading is
only available for ASICs for which the parameter is ignored.
Signed-off-by: NYann Dirson <ydirson@free.fr>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

The "nomodeset" kernel cmdline parameter is handled by the vgacon driver
but the exported vgacon_text_force() symbol is only used by DRM drivers.

It makes much more sense for the parameter logic to be in the subsystem
of the drivers that are making use of it.

Let's move the vgacon_text_force() function and related logic to the DRM
subsystem. While doing that, rename it to drm_firmware_drivers_only() and
make it return true if "nomodeset" was used and false otherwise. This is
a better description of the condition that the drivers are testing for.
Suggested-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NJavier Martinez Canillas <javierm@redhat.com>
Acked-by: NThomas Zimmermann <tzimmermann@suse.de>
Acked-by: NJani Nikula <jani.nikula@intel.com>
Acked-by: NPekka Paalanen <pekka.paalanen@collabora.com>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211112133230.1595307-4-javierm@redhat.com

The nomodeset kernel parameter handler already prints a message that the
DRM drivers will be disabled, so there's no need for drivers to do that.
Suggested-by: NThomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: NJavier Martinez Canillas <javierm@redhat.com>
Acked-by: NThomas Zimmermann <tzimmermann@suse.de>
Acked-by: NJani Nikula <jani.nikula@intel.com>
Acked-by: NPekka Paalanen <pekka.paalanen@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211112133230.1595307-2-javierm@redhat.com

With the shadow buffer support from generic framebuffer emulation, it's
possible now to have runpm kicked when no update for console.
Signed-off-by: NEvan Quan <evan.quan@amd.com>
Acked-by: NChristian König <christian.koenig@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>