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4 years agoMerge branch 'topic/ctl-enhancements' into for-next
Takashi Iwai [Wed, 15 Jun 2022 05:47:44 +0000 (07:47 +0200)] 
Merge branch 'topic/ctl-enhancements' into for-next

Pull ALSA control enhancement patches.
One is the faster lookup of control elements, and another is to
introduce the input data validation.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoALSA: control: Add input validation
Takashi Iwai [Thu, 9 Jun 2022 12:02:19 +0000 (14:02 +0200)] 
ALSA: control: Add input validation

This patch adds a new feature to enable the validation of input data
to control elements in the ALSA core side.  When
CONFIG_SND_CTL_INPUT_VALIDATION is set, ALSA core verifies whether the
each input value via control API is in the defined ranges, also checks
whether it's aligned to the defined steps.  If an invalid value is
detected, ALSA core returns -EINVAL error immediately without passing
further to the driver's callback.  So this is a kind of hardening for
(badly written) drivers that have no proper error checks, at the cost
of a slight performance overhead.

Technically seen, this reuses a part of the existing validation code
for CONFIG_SND_CTL_DEBUG case with a slight modification to suppress
error prints for the input validation.

Link: https://lore.kernel.org/r/20220609120219.3937-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoALSA: control: Drop superfluous ifdef CONFIG_SND_CTL_DEBUG
Takashi Iwai [Thu, 9 Jun 2022 12:02:18 +0000 (14:02 +0200)] 
ALSA: control: Drop superfluous ifdef CONFIG_SND_CTL_DEBUG

Compilers should be smart enough to optimize out the dead functions,
so we don't need to define ugly dummy functions with ifdef.

Link: https://lore.kernel.org/r/20220609120219.3937-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoALSA: control: Rename CONFIG_SND_CTL_VALIDATION to CONFIG_SND_CTL_DEBUG
Takashi Iwai [Thu, 9 Jun 2022 12:02:17 +0000 (14:02 +0200)] 
ALSA: control: Rename CONFIG_SND_CTL_VALIDATION to CONFIG_SND_CTL_DEBUG

The purpose of CONFIG_SND_CTL_VALIDATION is rather to enable the
debugging feature for the control API.  The validation is only a part
of it.  Let's rename it to be more explicit and intuitive.

While we're at it, let's advertise, give more comment to recommend
this feature for development in the kconfig help text.

Link: https://lore.kernel.org/r/20220609120219.3937-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoASoC: topology: Drop superfluous check of CONFIG_SND_CTL_VALIDATION
Takashi Iwai [Thu, 9 Jun 2022 12:02:16 +0000 (14:02 +0200)] 
ASoC: topology: Drop superfluous check of CONFIG_SND_CTL_VALIDATION

The compiler must be clever enough to optimize out for the no-op when
CONFIG_SND_CTL_VALIDATION is disabled.  Let's drop the superfluous
check.

Link: https://lore.kernel.org/r/20220609120219.3937-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoALSA: control: Use xarray for faster lookups
Takashi Iwai [Fri, 10 Jun 2022 06:45:37 +0000 (08:45 +0200)] 
ALSA: control: Use xarray for faster lookups

The control elements are managed in a single linked list and we
traverse the whole list for matching each numid or ctl id per every
inquiry of a control element.  This is OK-ish for a small number of
elements but obviously it doesn't scale.  Especially the matching with
the ctl id takes time because it checks each field of the snd_ctl_id
element, e.g. the name string is matched with strcmp().

This patch adds the hash tables with Xarray for improving the lookup
speed of a control element.  There are two xarray tables added to the
card; one for numid and another for ctl id.  For the numid, we use the
numid as the index, while for the ctl id, we calculate a hash key.

The lookup is done via a single xa_load() execution.  As long as the
given control element is found on the Xarray table, that's fine, we
can give back a quick lookup result.  The problem is when no entry
hits on the table, and for this case, we have a slight optimization.
Namely, the driver checks whether we had a collision on Xarray table,
and do a fallback search (linear lookup of the full entries) only if a
hash key collision happened beforehand.
So, in theory, the inquiry for a non-existing element might take still
time even with this patch in a worst case, but this must be pretty
rare.

The feature is enabled via CONFIG_SND_CTL_FAST_LOOKUP, which is turned
on as default.  For simplicity, the option can be turned off only when
CONFIG_EXPERT is set ("You are expert? Then you manage 1000 knobs").

Link: https://lore.kernel.org/r/20211028130027.18764-1-tiwai@suse.de
Link: https://lore.kernel.org/r/20220609180504.775-1-tiwai@suse.de
Link: https://lore.kernel.org/all/cover.1653813866.git.quic_rbankapu@quicinc.com/
Link: https://lore.kernel.org/r/20220610064537.18660-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoMerge branch 'support-mt7531-on-bpi-r2-pro'
Jakub Kicinski [Wed, 15 Jun 2022 05:35:18 +0000 (22:35 -0700)] 
Merge branch 'support-mt7531-on-bpi-r2-pro'

Frank Wunderlich says:

====================
Support mt7531 on BPI-R2 Pro

This Series add Support for the mt7531 switch on Bananapi R2 Pro board.

This board uses port5 of the switch to conect to the gmac0 of the
rk3568 SoC.

Currently CPU-Port is hardcoded in the mt7530 driver to port 6.

Compared to v1 the reset-Patch was dropped as it was not needed and
CPU-Port-changes are completely rewriten based on suggestions/code from
Vladimir Oltean (many thanks to this).
In DTS Patch i only dropped the status-property that was not
needed/ignored by driver.

Due to the Changes i also made a regression test on mt7623 bpi-r2
(mt7623 soc + mt7530) and bpi-r64 (mt7622 soc + mt7531) with cpu-
port 6. Tests were done directly (ipv4 config on dsa user port)
and with vlan-aware bridge including vlan that was tagged outgoing
on dsa user port.
====================

Link: https://lore.kernel.org/r/20220610170541.8643-1-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agoarm64: dts: rockchip: Add mt7531 dsa node to BPI-R2-Pro board
Frank Wunderlich [Fri, 10 Jun 2022 17:05:41 +0000 (19:05 +0200)] 
arm64: dts: rockchip: Add mt7531 dsa node to BPI-R2-Pro board

Add Device Tree node for mt7531 switch connected to gmac0.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agodt-bindings: net: dsa: make reset optional and add rgmii-mode to mt7531
Frank Wunderlich [Fri, 10 Jun 2022 17:05:40 +0000 (19:05 +0200)] 
dt-bindings: net: dsa: make reset optional and add rgmii-mode to mt7531

A board may have no independent reset-line, so reset cannot be used
inside switch driver.

E.g. on Bananapi-R2 Pro switch and gmac are connected to same reset-line.

Resets should be acquired only to 1 device/driver. This prevents reset to
be bound to switch-driver if reset is already used for gmac. If reset is
only used by switch driver it resets the switch *and* the gmac after the
mdio bus comes up resulting in mdio bus goes down. It takes some time
until all is up again, switch driver tries to read from mdio, will fail
and defer the probe. On next try the reset does the same again.

Make reset optional for such boards.

Allow port 5 as cpu-port and phy-mode rgmii for mt7531.

- MT7530 supports RGMII on port 5 and RGMII/TRGMII on port 6.
- MT7531 supports on port 5 RGMII and SGMII (dual-sgmii) and
  SGMII on port 6.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agonet: dsa: mt7530: get cpu-port via dp->cpu_dp instead of constant
Frank Wunderlich [Fri, 10 Jun 2022 17:05:39 +0000 (19:05 +0200)] 
net: dsa: mt7530: get cpu-port via dp->cpu_dp instead of constant

Replace last occurences of hardcoded cpu-port by cpu_dp member of
dsa_port struct.

Now the constant can be dropped.

Suggested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agonet: dsa: mt7530: rework mt753[01]_setup
Frank Wunderlich [Fri, 10 Jun 2022 17:05:38 +0000 (19:05 +0200)] 
net: dsa: mt7530: rework mt753[01]_setup

Enumerate available cpu-ports instead of using hardcoded constant.

Suggested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agonet: dsa: mt7530: rework mt7530_hw_vlan_{add,del}
Frank Wunderlich [Fri, 10 Jun 2022 17:05:37 +0000 (19:05 +0200)] 
net: dsa: mt7530: rework mt7530_hw_vlan_{add,del}

Rework vlan_add/vlan_del functions in preparation for dynamic cpu port.

Currently BIT(MT7530_CPU_PORT) is added to new_members, even though
mt7530_port_vlan_add() will be called on the CPU port too.

Let DSA core decide when to call port_vlan_add for the CPU port, rather
than doing it implicitly.

We can do autonomous forwarding in a certain VLAN, but not add br0 to that
VLAN and avoid flooding the CPU with those packets, if software knows it
doesn't need to process them.

Suggested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agodt-bindings: net: dsa: convert binding for mediatek switches
Frank Wunderlich [Fri, 10 Jun 2022 17:05:36 +0000 (19:05 +0200)] 
dt-bindings: net: dsa: convert binding for mediatek switches

Convert txt binding to yaml binding for Mediatek switches.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agoMAINTAINERS: add include/dt-bindings/net to NETWORKING DRIVERS
Lukas Bulwahn [Mon, 13 Jun 2022 12:18:26 +0000 (14:18 +0200)] 
MAINTAINERS: add include/dt-bindings/net to NETWORKING DRIVERS

Maintainers of the directory Documentation/devicetree/bindings/net
are also the maintainers of the corresponding directory
include/dt-bindings/net.

Add the file entry for include/dt-bindings/net to the appropriate
section in MAINTAINERS.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220613121826.11484-1-lukas.bulwahn@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agoALSA: hda/realtek: Apply fixup for Lenovo Yoga Duet 7 properly
Takashi Iwai [Tue, 14 Jun 2022 05:48:31 +0000 (07:48 +0200)] 
ALSA: hda/realtek: Apply fixup for Lenovo Yoga Duet 7 properly

It turned out that Lenovo shipped two completely different products
with the very same PCI SSID, where both require different quirks;
namely, Lenovo C940 has already the fixup for its speaker
(ALC298_FIXUP_LENOVO_SPK_VOLUME) with the PCI SSID 17aa:3818, while
Yoga Duet 7 has also the very same PCI SSID but requires a different
quirk, ALC287_FIXUP_YOGA7_14TIL_SPEAKERS.

Fortunately, both are with different codecs (C940 with ALC298 and Duet
7 with ALC287), hence we can apply different fixes by checking the
codec ID.  This patch implements that special fixup function.

For easier handling, the internal function for applying a specific
fixup entry is exported as __snd_hda_apply_fixup(), so that it can be
called from the codec driver.  The rest is simply calling it with a
different fixup ID depending on the codec ID.

Reported-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: nikitashvets@flyium.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/5ca147d1-3a2d-60c6-c491-8aa844183222@redhat.com
Link: https://lore.kernel.org/r/20220614054831.14648-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 years agoARM: dts: at91: ksz9477_evb: fix port/phy validation
Oleksij Rempel [Fri, 10 Jun 2022 08:16:21 +0000 (10:16 +0200)] 
ARM: dts: at91: ksz9477_evb: fix port/phy validation

Latest drivers version requires phy-mode to be set. Otherwise we will
use "NA" mode and the switch driver will invalidate this port mode.

Fixes: 65ac79e18120 ("net: dsa: microchip: add the phylink get_caps")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20220610081621.584393-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agoMerge branch 'mlxsw-remove-xm-support'
Jakub Kicinski [Wed, 15 Jun 2022 04:51:07 +0000 (21:51 -0700)] 
Merge branch 'mlxsw-remove-xm-support'

Ido Schimmel says:

====================
mlxsw: Remove XM support

The XM was supposed to be an external device connected to the
Spectrum-{2,3} ASICs using dedicated Ethernet ports. Its purpose was to
increase the number of routes that can be offloaded to hardware. This was
achieved by having the ASIC act as a cache that refers cache misses to the
XM where the FIB is stored and LPM lookup is performed.

Testing was done over an emulator and dedicated setups in the lab, but
the product was discontinued before shipping to customers.

Therefore, in order to remove dead code and reduce complexity of the
code base, revert the three patchsets that added XM support.
====================

Link: https://lore.kernel.org/r/20220613132116.2021055-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agomlxsw: Revert "Prepare for XM implementation - LPM trees"
Petr Machata [Mon, 13 Jun 2022 13:21:16 +0000 (16:21 +0300)] 
mlxsw: Revert "Prepare for XM implementation - LPM trees"

This reverts commit 923ba95ea22d ("Merge branch
'mlxsw-spectrum-prepare-for-xm-implementation-lpm-trees'").

Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agomlxsw: Revert "Prepare for XM implementation - prefix insertion and removal"
Petr Machata [Mon, 13 Jun 2022 13:21:15 +0000 (16:21 +0300)] 
mlxsw: Revert "Prepare for XM implementation - prefix insertion and removal"

This reverts commit e7086213f7b4 ("Merge branch
'mlxsw-spectrum-prepare-for-xm-implementation-prefix-insertion-and-removal'").

Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agomlxsw: Revert "Introduce initial XM router support"
Petr Machata [Mon, 13 Jun 2022 13:21:14 +0000 (16:21 +0300)] 
mlxsw: Revert "Introduce initial XM router support"

This reverts commit 75c2a8fe8e39 ("Merge branch
'mlxsw-introduce-initial-xm-router-support'").

Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years ago9p: Fix refcounting during full path walks for fid lookups
Tyler Hicks [Thu, 26 May 2022 23:59:59 +0000 (18:59 -0500)] 
9p: Fix refcounting during full path walks for fid lookups

Decrement the refcount of the parent dentry's fid after walking
each path component during a full path walk for a lookup. Failure to do
so can lead to fids that are not clunked until the filesystem is
unmounted, as indicated by this warning:

 9pnet: found fid 3 not clunked

The improper refcounting after walking resulted in open(2) returning
-EIO on any directories underneath the mount point when using the virtio
transport. When using the fd transport, there's no apparent issue until
the filesytem is unmounted and the warning above is emitted to the logs.

In some cases, the user may not yet be attached to the filesystem and a
new root fid, associated with the user, is created and attached to the
root dentry before the full path walk is performed. Increment the new
root fid's refcount to two in that situation so that it can be safely
decremented to one after it is used for the walk operation. The new fid
will still be attached to the root dentry when
v9fs_fid_lookup_with_uid() returns so a final refcount of one is
correct/expected.

Link: https://lkml.kernel.org/r/20220527000003.355812-2-tyhicks@linux.microsoft.com
Link: https://lkml.kernel.org/r/20220612085330.1451496-4-asmadeus@codewreck.org
Fixes: 6636b6dcc3db ("9p: add refcount to p9_fid struct")
Cc: stable@vger.kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com>
[Dominique: fix clunking fid multiple times discussed in second link]
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
4 years ago9p: fix fid refcount leak in v9fs_vfs_get_link
Dominique Martinet [Sun, 12 Jun 2022 08:14:55 +0000 (17:14 +0900)] 
9p: fix fid refcount leak in v9fs_vfs_get_link

we check for protocol version later than required, after a fid has
been obtained. Just move the version check earlier.

Link: https://lkml.kernel.org/r/20220612085330.1451496-3-asmadeus@codewreck.org
Fixes: 6636b6dcc3db ("9p: add refcount to p9_fid struct")
Cc: stable@vger.kernel.org
Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
4 years ago9p: fix fid refcount leak in v9fs_vfs_atomic_open_dotl
Dominique Martinet [Sun, 12 Jun 2022 07:00:05 +0000 (16:00 +0900)] 
9p: fix fid refcount leak in v9fs_vfs_atomic_open_dotl

We need to release directory fid if we fail halfway through open

This fixes fid leaking with xfstests generic 531

Link: https://lkml.kernel.org/r/20220612085330.1451496-2-asmadeus@codewreck.org
Fixes: 6636b6dcc3db ("9p: add refcount to p9_fid struct")
Cc: stable@vger.kernel.org
Reported-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
4 years agonet: bgmac: Fix an erroneous kfree() in bgmac_remove()
Christophe JAILLET [Mon, 13 Jun 2022 20:53:50 +0000 (22:53 +0200)] 
net: bgmac: Fix an erroneous kfree() in bgmac_remove()

'bgmac' is part of a managed resource allocated with bgmac_alloc(). It
should not be freed explicitly.

Remove the erroneous kfree() from the .remove() function.

Fixes: 34a5102c3235 ("net: bgmac: allocate struct bgmac just once & don't copy it")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/a026153108dd21239036a032b95c25b5cece253b.1655153616.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agoMerge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox...
Jakub Kicinski [Wed, 15 Jun 2022 02:09:39 +0000 (19:09 -0700)] 
Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

Saeed Mahameed says:

====================
mlx5-next: updates 2022-06-14

1) Updated HW bits and definitions for upcoming features
 1.1) vport debug counters
 1.2) flow meter
 1.3) Execute ASO action for flow entry
 1.4) enhanced CQE compression

2) Add ICM header-modify-pattern RDMA API

Leon Says
=========

SW steering manipulates packet's header using "modifying header" actions.
Many of these actions do the same operation, but use different data each time.
Currently we create and keep every one of these actions, which use expensive
and limited resources.

Now we introduce a new mechanism - pattern and argument, which splits
a modifying action into two parts:
1. action pattern: contains the operations to be applied on packet's header,
mainly set/add/copy of fields in the packet
2. action data/argument: contains the data to be used by each operation
in the pattern.

This way we reuse same patterns with different arguments to create new
modifying actions, and since many actions share the same operations, we end
up creating a small number of patterns that we keep in a dedicated cache.

These modify header patterns are implemented as new type of ICM memory,
so the following kernel patch series add the support for this new ICM type.
==========

* 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
  net/mlx5: Add bits and fields to support enhanced CQE compression
  net/mlx5: Remove not used MLX5_CAP_BITS_RW_MASK
  net/mlx5: group fdb cleanup to single function
  net/mlx5: Add support EXECUTE_ASO action for flow entry
  net/mlx5: Add HW definitions of vport debug counters
  net/mlx5: Add IFC bits and enums for flow meter
  RDMA/mlx5: Support handling of modify-header pattern ICM area
  net/mlx5: Manage ICM of type modify-header pattern
  net/mlx5: Introduce header-modify-pattern ICM properties
====================

Link: https://lore.kernel.org/r/20220614184028.51548-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 years agoselinux: Add boundary check in put_entry()
Xiu Jianfeng [Tue, 14 Jun 2022 02:14:49 +0000 (10:14 +0800)] 
selinux: Add boundary check in put_entry()

Just like next_entry(), boundary check is necessary to prevent memory
out-of-bound access.

Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
4 years agodrm/amdgpu/display: make FP handling in Makefiles consistent
Alex Deucher [Fri, 10 Jun 2022 15:17:59 +0000 (11:17 -0400)] 
drm/amdgpu/display: make FP handling in Makefiles consistent

Use the same pattern as the DML Makefile and while we are here
add a missing x86 guard around the msse flags for DCN3.2.x.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agoRevert "drm/amdgpu/display: Protect some functions with CONFIG_DRM_AMD_DC_DCN"
Alex Deucher [Tue, 14 Jun 2022 13:57:26 +0000 (09:57 -0400)] 
Revert "drm/amdgpu/display: Protect some functions with CONFIG_DRM_AMD_DC_DCN"

This reverts commit d8e4fb9112e88d8d87ffbc38fa511e7118042d4f.

This is no longer necessary as newer patches require these functions
without CONFIG_DRM_AMD_DC_DCN.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdkfd: fix warning when CONFIG_HSA_AMD_P2P is not set
Alex Deucher [Fri, 10 Jun 2022 15:38:05 +0000 (11:38 -0400)] 
drm/amdkfd: fix warning when CONFIG_HSA_AMD_P2P is not set

drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1542:11:
warning: variable 'i' set but not used [-Wunused-but-set-variable]

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: remove redundant enable_mes and enable_mes_kiq
Yifan Zhang [Sun, 12 Jun 2022 04:12:34 +0000 (12:12 +0800)] 
drm/amdgpu: remove redundant enable_mes and enable_mes_kiq

enable_mes and enable_mes_kiq are set in both device init and
MES IP init. Leave the ones in MES IP init, since it is
a more accurate way to judge from GC IP version.

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jack Xiao <Jack.Xiao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Blank for uclk OC in dm instead of dc
Joshua Aberback [Thu, 28 May 2020 15:11:34 +0000 (11:11 -0400)] 
drm/amd/display: Blank for uclk OC in dm instead of dc

[Why]
All displays need to be blanked during the uclk OC interface so that we can
guarantee pstate switching support. If the display config doesn't support
pstate switching, only using core_link_disable_stream will not enable it
as the front-end is untouched. We need to go through the full plane removal
sequence to properly program the pipe to allow pstate switching.

[How]
 - guard clk_mgr functions with non-NULL checks

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Add null check to dc_submit_i2c_oem
Martin Leung [Wed, 30 Oct 2019 18:19:30 +0000 (14:19 -0400)] 
drm/amd/display: Add null check to dc_submit_i2c_oem

[why]
dc_submit_i2c_oem could be called with ddc null

[how]
add null check and fail the call instead

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Martin Leung <martin.leung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: FVA timing adjustment
Charlene Liu [Sat, 4 Apr 2020 01:06:53 +0000 (21:06 -0400)] 
drm/amd/display: FVA timing adjustment

[why]
need to add timing adjustment for fva.

[how]
add hook to optc and hwseq.

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Add vrr_active_variable to dc_stream_update
Harry VanZyllDeJong [Mon, 10 May 2021 23:30:24 +0000 (19:30 -0400)] 
drm/amd/display: Add vrr_active_variable to dc_stream_update

[WHY]
The display driver on some OSes need to track it in order to
perform memory clock switching decisions.

[HOW]
Propagate the vrr active state to dirty bit so that on mode set it
disables dynamic memory clock switching.

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Harry VanZyllDeJong <harry.vanzylldejong@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Pass vrr mode to dcn
Felipe Clark [Fri, 26 Mar 2021 19:01:20 +0000 (15:01 -0400)] 
drm/amd/display: Pass vrr mode to dcn

[WHY]
New features will require knowing the vrr mode for their enablement.

[HOW]
Pass the state via a member of dc_stream.

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Felipe Clark <Felipe.Clark@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Adding VTEM to dc
Ahmad Othman [Thu, 1 Aug 2019 19:05:04 +0000 (15:05 -0400)] 
drm/amd/display: Adding VTEM to dc

[Why]
Video Timing Extended Metadata packet (VTEM) is required for features
like VRR and FVA

[How]
Adding support for VTEM transmission to stream encoders in DCN20 and DCN30
as part of FVA support

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Ahmad Othman <ahmad.othman@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Copy hfvsif_infopacket when stream update
Nicholas Kazlauskas [Tue, 14 May 2019 13:19:01 +0000 (09:19 -0400)] 
drm/amd/display: Copy hfvsif_infopacket when stream update

[Why & How]
Miss to copy hfvsif_infopacket when copying stream updates.
Check and copy it.

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Add support for HF-VSIF
Ahmad Othman [Mon, 4 Feb 2019 21:11:44 +0000 (16:11 -0500)] 
drm/amd/display: Add support for HF-VSIF

[Why]
- Currently there is no support for HF-VSIF
- The current support of VSIF is limited to H14b infoframe

[How]
- refactor VSIF
- Added new builder for HF-VSIF
- Added the HF-VSIF packet to DisplayTarget
- Updates DC to apply HF-VSIF updates when updating streams

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Ahmad Othman <ahmad.othman@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Firmware assisted MCLK switch and FS
Felipe Clark [Sun, 7 Mar 2021 18:27:30 +0000 (13:27 -0500)] 
drm/amd/display: Firmware assisted MCLK switch and FS

[WHY]
Memory clock switching has great potential for power savings.

[HOW]
The driver code was modified to notify the DMCUB firmware that it should
stretch the vertical blank of frames when a memory clock switch is about
to start so that no blackouts happen on the screen due to unavailability
of the frame buffer.
The driver logic to determine when such firmware assisted strategy can
be initiated is also implemented and consists on checking prerequisites
of the feature.

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Felipe Clark <felipe.clark@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: DAL ACR, dc part, fix missing dcn30
Ian Chen [Mon, 10 May 2021 04:17:26 +0000 (12:17 +0800)] 
drm/amd/display: DAL ACR, dc part, fix missing dcn30

[Why]
- missing in dcn30 function
- Fix a divide by 0 when ACR trigger

[How]
- Add IS_SMU_TIMEOUT() to dcn30_smu_send_msg_with_param
- Add zero check in dcn20_update_clocks_update_dentist

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Ian Chen <ian.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Fix comments
Samson Tam [Tue, 9 Mar 2021 22:23:10 +0000 (17:23 -0500)] 
drm/amd/display: Fix comments

[Why & how]
Fix format and typo of comments.

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Drop unused privacy_mask setters and getters
Oliver Logush [Fri, 13 Aug 2021 17:44:56 +0000 (13:44 -0400)] 
drm/amd/display: Drop unused privacy_mask setters and getters

[Why and How]
dwbc_funcs.set/get_privacy_mask isn't being used anymore, drop it

Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Oliver Logush <oliver.logush@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: 3.2.190
Aric Cyr [Mon, 6 Jun 2022 02:50:30 +0000 (22:50 -0400)] 
drm/amd/display: 3.2.190

This version brings along the following:
- DP fixes
- Exiting idle optimizations on mouse updates

Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: update topology_update_input_v3 struct
Qingqing Zhuo [Fri, 3 Jun 2022 18:44:58 +0000 (14:44 -0400)] 
drm/amd/display: update topology_update_input_v3 struct

[Why]
DIO parameters were missing in topology_update_intput_v3 struct.

[How]
Add DIO parameters in v3 struct and update in functions perspectively.

Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Add debug option for exiting idle optimizations on cursor updates
Alvin Lee [Fri, 3 Jun 2022 20:39:48 +0000 (16:39 -0400)] 
drm/amd/display: Add debug option for exiting idle optimizations on cursor updates

[Description]
- Have option to exit idle opt on cursor updates
for debug and optimizations purposes

Reviewed-by: Samson Tam <Samson.Tam@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: dsc validate fail not pass to atomic check
hersen wu [Sun, 29 May 2022 14:54:30 +0000 (10:54 -0400)] 
drm/amd/display: dsc validate fail not pass to atomic check

[Why] when 4k@144hz dp connect to dp1.4 dsc mst hub, requested
bandwidth exceeds caps of dsc hub. but dsc bw valid functions,
increase_dsc_bpp, try_disable_dsc, pre_validate_dsc,
compute_mst_dsc_configs_for_state, do not return false to
atomic check. this cause user mode initiate mode set to kernel,
then cause kernel assert, system hang.

[How] dsc bandwidth valid functions return pass or fail to atomic
check.

Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Fix monitor flash issue
Shah Dharati [Tue, 31 May 2022 13:58:12 +0000 (09:58 -0400)] 
drm/amd/display: Fix monitor flash issue

[Why & How]
For a some specific monitors, when connected on boot or hot plug,
monitor flash for 1/2 seconds can happen during first HDCP query
operation. Ading some delay in the init sequence for these monitors
fixes the issue, so it is implemented as monitor specific patch.

Co-authored-by: Shah Dharati <dharshah@amd.com>
Reviewed-by: Hansen Dsouza <Hansen.Dsouza@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Shah Dharati <dharshah@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: lower lane count first when CR done partially fails in EQ
Wenjing Liu [Thu, 26 May 2022 19:52:42 +0000 (15:52 -0400)] 
drm/amd/display: lower lane count first when CR done partially fails in EQ

[why]
According to DP specs, in EQ DONE phase of link training, we
should lower lane count when at least one CR DONE bit is set to 1, while
lower link rate when all CR DONE bits are 0s. However in our code, we will
treat both cases as latter. This is not exactly correct based on the specs
expectation.

[how]
Check lane0 CR DONE bit when it is still set but CR DONE fails,
we treat it as a partial CR DONE failure in EQ DONE phase, we
will follow the same fallback flow as when ED DONE fails in EQ
DONE phase.

Reviewed-by: George Shen <George.Shen@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdkfd: Add available memory ioctl
Daniel Phillips [Mon, 30 May 2022 15:21:22 +0000 (11:21 -0400)] 
drm/amdkfd: Add available memory ioctl

Add a new KFD ioctl to return the largest possible memory size that
can be allocated as a buffer object using
kfd_ioctl_alloc_memory_of_gpu. It attempts to use exactly the same
accept/reject criteria as that function so that allocating a new
buffer object of the size returned by this new ioctl is guaranteed to
succeed, barring races with other allocating tasks.

This IOCTL will be used by libhsakmt:
https://www.mail-archive.com/amd-gfx@lists.freedesktop.org/msg75743.html

Signed-off-by: Daniel Phillips <Daniel.Phillips@amd.com>
Signed-off-by: David Yat Sin <David.YatSin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agoRevert "drm/amdgpu/gmc11: enable AGP aperture"
Chengming Gui [Mon, 13 Jun 2022 06:52:54 +0000 (14:52 +0800)] 
Revert "drm/amdgpu/gmc11: enable AGP aperture"

This reverts commit 2cfe34e18970d26bff73c63f16c76dae22138d19.
Enable AGP aperture cause SDMA page fault for gfx11.0.2,
so temp disable AGP aperture until SDMA FW resolved this.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Jack Gui <Jack.Gui@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/pm: enable MACO support for SMU 13.0.0
Evan Quan [Tue, 7 Jun 2022 06:40:24 +0000 (14:40 +0800)] 
drm/amd/pm: enable MACO support for SMU 13.0.0

Enable BAMACO reset support for SMU 13.0.0.

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>
4 years agodrm/amd/pm: enable UCLK DS feature for SMU 13.0.0
Evan Quan [Mon, 6 Jun 2022 03:21:07 +0000 (11:21 +0800)] 
drm/amd/pm: enable UCLK DS feature for SMU 13.0.0

The feature is ready with latest PMFW and IFWI.

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>
4 years agodrm/amd/display: dml: move some variables to heap
Aurabindo Pillai [Fri, 10 Jun 2022 17:13:31 +0000 (13:13 -0400)] 
drm/amd/display: dml: move some variables to heap

[Why&How]
To reduce stack usage, move some variables into heap in the DML function
dml32_ModeSupportAndSystemConfigurationFull()

Fixes: dda4fb85e433 ("drm/amd/display: DML changes for DCN32/321")
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Use pre-allocated temp struct for bounding box update
Leo Li [Wed, 8 Jun 2022 16:17:44 +0000 (12:17 -0400)] 
drm/amd/display: Use pre-allocated temp struct for bounding box update

[Why]

There is a theoretical problem in prior patches for reducing the stack
size of *update_bw_bounding_box() functions.

By modifying the soc.clock_limits[n] struct directly, this can cause
unintended behavior as the for loop attempts to swap rows in
clock_limits[n]. A temporary struct is still required to make sure we
stay functinoally equivalent.

[How]

Add a temporary clock_limits table to the SOC struct, and use it when
swapping rows.

Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: Fix GTT size reporting in amdgpu_ioctl
Michel Dänzer [Fri, 10 Jun 2022 13:54:26 +0000 (15:54 +0200)] 
drm/amdgpu: Fix GTT size reporting in amdgpu_ioctl

The commit below changed the TTM manager size unit from pages to
bytes, but failed to adjust the corresponding calculations in
amdgpu_ioctl.

Fixes: dfa714b88eb0 ("drm/amdgpu: remove GTT accounting v2")
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1930
Bug: https://gitlab.freedesktop.org/mesa/mesa/-/issues/6642
Tested-by: Martin Roukala <martin.roukala@mupuf.org>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu/pm: remove the repeated EnableGfxImu message sending
Tim Huang [Mon, 6 Jun 2022 08:27:06 +0000 (16:27 +0800)] 
drm/amdgpu/pm: remove the repeated EnableGfxImu message sending

The EnableGfxImu message will be issued in the set_gfx_power_up_by_imu.

Signed-off-by: Tim Huang <tim.huang@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu/pm: correct the firmware flag address for SMU IP v13.0.4
Tim Huang [Wed, 1 Jun 2022 10:12:08 +0000 (18:12 +0800)] 
drm/amdgpu/pm: correct the firmware flag address for SMU IP v13.0.4

For SMU IP v13.0.4, the smnMP1_FIRMWARE_FLAGS address is different,
we need this to correct the reading address.

Signed-off-by: Tim Huang <tim.huang@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: ignore modifiers when checking for format support
Aurabindo Pillai [Wed, 8 Jun 2022 02:43:42 +0000 (22:43 -0400)] 
drm/amd/display: ignore modifiers when checking for format support

[Why&How]
There are cases where swizzle modes are set but modifiers arent. For
such a userspace, we need not check modifiers while checking
compatibilty in the drm hook for checking plane format.

Ignore checking modifiers but check the DCN generation for the
supported swizzle mode.

v2: squash in unused variable removal (Alex)

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd: disable GPA mode in backdoor load
Yifan Zhang [Thu, 9 Jun 2022 09:03:48 +0000 (17:03 +0800)] 
drm/amd: disable GPA mode in backdoor load

GPA mode should be disabled in direct load.

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu/discovery: enable vcn/jpeg v4_0_2
Yifan Zhang [Wed, 8 Jun 2022 10:29:33 +0000 (18:29 +0800)] 
drm/amdgpu/discovery: enable vcn/jpeg v4_0_2

Enable vcn/jpeg 4_0_2.

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/pm: fix driver reload SMC firmware fail issue for smu13
Yang Wang [Thu, 9 Jun 2022 11:20:47 +0000 (19:20 +0800)] 
drm/amd/pm: fix driver reload SMC firmware fail issue for smu13

issue calltrace:
[  402.773695] [drm] failed to load ucode SMC(0x2C)
[  402.773754] [drm] psp gfx command LOAD_IP_FW(0x6) failed and response status is (0x0)
[  402.773762] [drm:psp_load_smu_fw [amdgpu]] *ERROR* PSP load smu failed!
[  402.966758] [drm:psp_v13_0_ring_destroy [amdgpu]] *ERROR* Fail to stop psp ring
[  402.966949] [drm:psp_hw_init [amdgpu]] *ERROR* PSP firmware loading failed
[  402.967116] [drm:amdgpu_device_fw_loading [amdgpu]] *ERROR* hw_init of IP block <psp> failed -22
[  402.967252] amdgpu 0000:03:00.0: amdgpu: amdgpu_device_ip_init failed
[  402.967255] amdgpu 0000:03:00.0: amdgpu: Fatal error during GPU init

if not reset mp1 state during kernel driver unload, it will cause psp
load pmfw fail at the second time.

add PPSMC_MSG_PrepareMp1ForUnload support for smu_v13_0_0/smu_v13_0_7

Signed-off-by: Yang Wang <KevinYang.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agoselftests/bpf: Avoid skipping certain subtests
Yonghong Song [Tue, 14 Jun 2022 05:55:26 +0000 (22:55 -0700)] 
selftests/bpf: Avoid skipping certain subtests

Commit 704c91e59fe0 ('selftests/bpf: Test "bpftool gen min_core_btf"')
added a test test_core_btfgen to test core relocation with btf
generated with 'bpftool gen min_core_btf'. Currently,
among 76 subtests, 25 are skipped.

  ...
  #46/69   core_reloc_btfgen/enumval:OK
  #46/70   core_reloc_btfgen/enumval___diff:OK
  #46/71   core_reloc_btfgen/enumval___val3_missing:OK
  #46/72   core_reloc_btfgen/enumval___err_missing:SKIP
  #46/73   core_reloc_btfgen/enum64val:OK
  #46/74   core_reloc_btfgen/enum64val___diff:OK
  #46/75   core_reloc_btfgen/enum64val___val3_missing:OK
  #46/76   core_reloc_btfgen/enum64val___err_missing:SKIP
  ...
  #46      core_reloc_btfgen:SKIP
  Summary: 1/51 PASSED, 25 SKIPPED, 0 FAILED

Alexei found that in the above core_reloc_btfgen/enum64val___err_missing
should not be skipped.

Currently, the core_reloc tests have some negative tests.
In Commit 704c91e59fe0, for core_reloc_btfgen, all negative tests
are skipped with the following condition
  if (!test_case->btf_src_file || test_case->fails) {
test__skip();
continue;
  }
This is too conservative. Negative tests do not fail
mkstemp() and run_btfgen() should not be skipped.
There are a few negative tests indeed failing run_btfgen()
and this patch added 'run_btfgen_fails' to mark these tests
so that they can be skipped for btfgen tests. With this,
we have
  ...
  #46/69   core_reloc_btfgen/enumval:OK
  #46/70   core_reloc_btfgen/enumval___diff:OK
  #46/71   core_reloc_btfgen/enumval___val3_missing:OK
  #46/72   core_reloc_btfgen/enumval___err_missing:OK
  #46/73   core_reloc_btfgen/enum64val:OK
  #46/74   core_reloc_btfgen/enum64val___diff:OK
  #46/75   core_reloc_btfgen/enum64val___val3_missing:OK
  #46/76   core_reloc_btfgen/enum64val___err_missing:OK
  ...
  Summary: 1/62 PASSED, 14 SKIPPED, 0 FAILED

Totally 14 subtests are skipped instead of 25.

Reported-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220614055526.628299-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
4 years agoselftests/bpf: Fix test_varlen verification failure with latest llvm
Yonghong Song [Mon, 13 Jun 2022 23:34:49 +0000 (16:34 -0700)] 
selftests/bpf: Fix test_varlen verification failure with latest llvm

With latest llvm15, test_varlen failed with the following verifier log:

  17: (85) call bpf_probe_read_kernel_str#115   ; R0_w=scalar(smin=-4095,smax=256)
  18: (bf) r1 = r0                      ; R0_w=scalar(id=1,smin=-4095,smax=256) R1_w=scalar(id=1,smin=-4095,smax=256)
  19: (67) r1 <<= 32                    ; R1_w=scalar(smax=1099511627776,umax=18446744069414584320,var_off=(0x0; 0xffffffff00000000),s32_min=0,s32_max=0,u32_max=)
  20: (bf) r2 = r1                      ; R1_w=scalar(id=2,smax=1099511627776,umax=18446744069414584320,var_off=(0x0; 0xffffffff00000000),s32_min=0,s32_max=0,u32)
  21: (c7) r2 s>>= 32                   ; R2=scalar(smin=-2147483648,smax=256)
  ; if (len >= 0) {
  22: (c5) if r2 s< 0x0 goto pc+7       ; R2=scalar(umax=256,var_off=(0x0; 0x1ff))
  ; payload4_len1 = len;
  23: (18) r2 = 0xffffc90000167418      ; R2_w=map_value(off=1048,ks=4,vs=1572,imm=0)
  25: (63) *(u32 *)(r2 +0) = r0         ; R0=scalar(id=1,smin=-4095,smax=256) R2_w=map_value(off=1048,ks=4,vs=1572,imm=0)
  26: (77) r1 >>= 32                    ; R1_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
  ; payload += len;
  27: (18) r6 = 0xffffc90000167424      ; R6_w=map_value(off=1060,ks=4,vs=1572,imm=0)
  29: (0f) r6 += r1                     ; R1_w=Pscalar(umax=4294967295,var_off=(0x0; 0xffffffff)) R6_w=map_value(off=1060,ks=4,vs=1572,umax=4294967295,var_off=(0)
  ; len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in2[0]);
  30: (bf) r1 = r6                      ; R1_w=map_value(off=1060,ks=4,vs=1572,umax=4294967295,var_off=(0x0; 0xffffffff)) R6_w=map_value(off=1060,ks=4,vs=1572,um)
  31: (b7) r2 = 256                     ; R2_w=256
  32: (18) r3 = 0xffffc90000164100      ; R3_w=map_value(off=256,ks=4,vs=1056,imm=0)
  34: (85) call bpf_probe_read_kernel_str#115
  R1 unbounded memory access, make sure to bounds check any such access
  processed 27 insns (limit 1000000) max_states_per_insn 0 total_states 2 peak_states 2 mark_read 1
  -- END PROG LOAD LOG --
  libbpf: failed to load program 'handler32_signed'

The failure is due to
  20: (bf) r2 = r1                      ; R1_w=scalar(id=2,smax=1099511627776,umax=18446744069414584320,var_off=(0x0; 0xffffffff00000000),s32_min=0,s32_max=0,u32)
  21: (c7) r2 s>>= 32                   ; R2=scalar(smin=-2147483648,smax=256)
  22: (c5) if r2 s< 0x0 goto pc+7       ; R2=scalar(umax=256,var_off=(0x0; 0x1ff))
  26: (77) r1 >>= 32                    ; R1_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
  29: (0f) r6 += r1                     ; R1_w=Pscalar(umax=4294967295,var_off=(0x0; 0xffffffff)) R6_w=map_value(off=1060,ks=4,vs=1572,umax=4294967295,var_off=(0)
where r1 has conservative value range compared to r2 and r1 is used later.

In llvm, commit [1] triggered the above code generation and caused
verification failure.

It may take a while for llvm to address this issue. In the main time,
let us change the variable 'len' type to 'long' and adjust condition properly.
Tested with llvm14 and latest llvm15, both worked fine.

 [1] https://reviews.llvm.org/D126647

Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220613233449.2860753-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
4 years agoremoteproc: omap_remoteproc: Fix typo in comment
Xiang wangx [Wed, 8 Jun 2022 13:04:06 +0000 (21:04 +0800)] 
remoteproc: omap_remoteproc: Fix typo in comment

Delete the redundant word 'The'.
Delete the redundant word 'to'.

Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com>
Link: https://lore.kernel.org/r/20220608130406.46005-1-wangxiang@cdjrlc.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
4 years agoremoteproc: k3-r5: Fix refcount leak in k3_r5_cluster_of_init
Miaoqian Lin [Sun, 5 Jun 2022 08:33:34 +0000 (12:33 +0400)] 
remoteproc: k3-r5: Fix refcount leak in k3_r5_cluster_of_init

Every iteration of for_each_available_child_of_node() decrements
the reference count of the previous node.
When breaking early from a for_each_available_child_of_node() loop,
we need to explicitly call of_node_put() on the child node.
Add missing of_node_put() to avoid refcount leak.

Fixes: 6dedbd1d5443 ("remoteproc: k3-r5: Add a remoteproc driver for R5F subsystem")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Acked-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20220605083334.23942-1-linmq006@gmail.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
4 years agorpmsg: mtk_rpmsg: Fix circular locking dependency
AngeloGioacchino Del Regno [Wed, 25 May 2022 09:12:01 +0000 (11:12 +0200)] 
rpmsg: mtk_rpmsg: Fix circular locking dependency

During execution of the worker that's used to register rpmsg devices
we are safely locking the channels mutex but, when creating a new
endpoint for such devices, we are registering a IPI on the SCP, which
then makes the SCP to trigger an interrupt, lock its own mutex and in
turn register more subdevices.
This creates a circular locking dependency situation, as the mtk_rpmsg
channels_lock will then depend on the SCP IPI lock.

[   15.447736] ======================================================
[   15.460158] WARNING: possible circular locking dependency detected
[   15.460161] 5.17.0-next-20220324+ #399 Not tainted
[   15.460165] ------------------------------------------------------
[   15.460166] kworker/0:3/155 is trying to acquire lock:
[   15.460170] ffff5b4d0eaf1308 (&scp->ipi_desc[i].lock){+.+.}-{4:4}, at: scp_ipi_lock+0x34/0x50 [mtk_scp_ipi]
[   15.504958]
[]                but task is already holding lock:
[   15.504960] ffff5b4d0e8f1918 (&mtk_subdev->channels_lock){+.+.}-{4:4}, at: mtk_register_device_work_function+0x50/0x1cc [mtk_rpmsg]
[   15.504978]
[]                which lock already depends on the new lock.

[   15.504980]
[]                the existing dependency chain (in reverse order) is:
[   15.504982]
[]               -> #1 (&mtk_subdev->channels_lock){+.+.}-{4:4}:
[   15.504990]        lock_acquire+0x68/0x84
[   15.504999]        __mutex_lock+0xa4/0x3e0
[   15.505007]        mutex_lock_nested+0x40/0x70
[   15.505012]        mtk_rpmsg_ns_cb+0xe4/0x134 [mtk_rpmsg]
[   15.641684]        mtk_rpmsg_ipi_handler+0x38/0x64 [mtk_rpmsg]
[   15.641693]        scp_ipi_handler+0xbc/0x180 [mtk_scp]
[   15.663905]        mt8192_scp_irq_handler+0x44/0xa4 [mtk_scp]
[   15.663915]        scp_irq_handler+0x6c/0xa0 [mtk_scp]
[   15.685779]        irq_thread_fn+0x34/0xa0
[   15.685785]        irq_thread+0x18c/0x240
[   15.685789]        kthread+0x104/0x110
[   15.709579]        ret_from_fork+0x10/0x20
[   15.709586]
[]               -> #0 (&scp->ipi_desc[i].lock){+.+.}-{4:4}:
[   15.731271]        __lock_acquire+0x11e4/0x1910
[   15.740367]        lock_acquire.part.0+0xd8/0x220
[   15.749813]        lock_acquire+0x68/0x84
[   15.757861]        __mutex_lock+0xa4/0x3e0
[   15.766084]        mutex_lock_nested+0x40/0x70
[   15.775006]        scp_ipi_lock+0x34/0x50 [mtk_scp_ipi]
[   15.785503]        scp_ipi_register+0x40/0xa4 [mtk_scp_ipi]
[   15.796697]        scp_register_ipi+0x1c/0x30 [mtk_scp]
[   15.807194]        mtk_rpmsg_create_ept+0xa0/0x108 [mtk_rpmsg]
[   15.818912]        rpmsg_create_ept+0x44/0x60
[   15.827660]        cros_ec_rpmsg_probe+0x15c/0x1f0
[   15.837282]        rpmsg_dev_probe+0x128/0x1d0
[   15.846203]        really_probe.part.0+0xa4/0x2a0
[   15.855649]        __driver_probe_device+0xa0/0x150
[   15.865443]        driver_probe_device+0x48/0x150
[   15.877157]        __device_attach_driver+0xc0/0x12c
[   15.889359]        bus_for_each_drv+0x80/0xe0
[   15.900330]        __device_attach+0xe4/0x190
[   15.911303]        device_initial_probe+0x1c/0x2c
[   15.922969]        bus_probe_device+0xa8/0xb0
[   15.933927]        device_add+0x3a8/0x8a0
[   15.944193]        device_register+0x28/0x40
[   15.954970]        rpmsg_register_device+0x5c/0xa0
[   15.966782]        mtk_register_device_work_function+0x148/0x1cc [mtk_rpmsg]
[   15.983146]        process_one_work+0x294/0x664
[   15.994458]        worker_thread+0x7c/0x45c
[   16.005069]        kthread+0x104/0x110
[   16.014789]        ret_from_fork+0x10/0x20
[   16.025201]
[]               other info that might help us debug this:

[   16.047769]  Possible unsafe locking scenario:

[   16.063942]        CPU0                    CPU1
[   16.075166]        ----                    ----
[   16.086376]   lock(&mtk_subdev->channels_lock);
[   16.097592]                                lock(&scp->ipi_desc[i].lock);
[   16.113188]                                lock(&mtk_subdev->channels_lock);
[   16.129482]   lock(&scp->ipi_desc[i].lock);
[   16.140020]
[]                *** DEADLOCK ***

[   16.158282] 4 locks held by kworker/0:3/155:
[   16.168978]  #0: ffff5b4d00008748 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1fc/0x664
[   16.190017]  #1: ffff80000953bdc8 ((work_completion)(&mtk_subdev->register_work)){+.+.}-{0:0}, at: process_one_work+0x1fc/0x664
[   16.215269]  #2: ffff5b4d0e8f1918 (&mtk_subdev->channels_lock){+.+.}-{4:4}, at: mtk_register_device_work_function+0x50/0x1cc [mtk_rpmsg]
[   16.242131]  #3: ffff5b4d05964190 (&dev->mutex){....}-{4:4}, at: __device_attach+0x44/0x190

To solve this, simply unlock the channels_lock mutex before calling
mtk_rpmsg_register_device() and relock it right after, as safety is
still ensured by the locking mechanism that happens right after
through SCP.

Fixes: 7017996951fd ("rpmsg: add rpmsg support for mt8183 SCP.")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220525091201.14210-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
4 years agodrm/i915/pvc: Adjust EU per SS according to HAS_ONE_EU_PER_FUSE_BIT()
Matt Roper [Fri, 10 Jun 2022 23:08:01 +0000 (16:08 -0700)] 
drm/i915/pvc: Adjust EU per SS according to HAS_ONE_EU_PER_FUSE_BIT()

If we're treating each bit in the EU fuse register as a single EU
instead of a pair of EUs, then that also cuts the number of potential
EUs per subslice in half.

Fixes: 5ac342ef84d7 ("drm/i915/pvc: Add SSEU changes")
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220610230801.459577-1-matthew.d.roper@intel.com
4 years agorpmsg: char: Add mutex protection for rpmsg_eptdev_open()
Shengjiu Wang [Sat, 21 May 2022 03:35:05 +0000 (11:35 +0800)] 
rpmsg: char: Add mutex protection for rpmsg_eptdev_open()

There is no mutex protection for rpmsg_eptdev_open(),
especially for eptdev->ept read and write operation.
It may cause issues when multiple instances call
rpmsg_eptdev_open() in parallel,the return state
may be success or EBUSY.

Fixes: 964e8bedd5a1 ("rpmsg: char: Return an error if device already open")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1653104105-16779-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
4 years agommc: sdhci-pci-o2micro: Fix card detect by dealing with debouncing
Chevron Li [Thu, 2 Jun 2022 13:25:43 +0000 (06:25 -0700)] 
mmc: sdhci-pci-o2micro: Fix card detect by dealing with debouncing

The result from ->get_cd() may be incorrect as the card detect debouncing
isn't managed correctly. Let's fix it.

Signed-off-by: Chevron Li<chevron.li@bayhubtech.com>
Fixes: 7d44061704dd ("mmc: sdhci-pci-o2micro: Fix O2 Host data read/write DLL Lock phase shift issue")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220602132543.596-1-chevron.li@bayhubtech.com
[Ulf: Updated the commit message]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
4 years agoARM: dts: allwinner: align gpio-key node names with dtschema
Krzysztof Kozlowski [Thu, 9 Jun 2022 11:39:08 +0000 (13:39 +0200)] 
ARM: dts: allwinner: align gpio-key node names with dtschema

The node names should be generic and DT schema expects certain pattern
(e.g. with key/button/switch).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220609113911.380368-5-krzysztof.kozlowski@linaro.org
4 years agoarm64: dts: allwinner: align gpio-key node names with dtschema
Krzysztof Kozlowski [Thu, 9 Jun 2022 11:39:07 +0000 (13:39 +0200)] 
arm64: dts: allwinner: align gpio-key node names with dtschema

The node names should be generic and DT schema expects certain pattern
(e.g. with key/button/switch).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220609113911.380368-4-krzysztof.kozlowski@linaro.org
4 years agobpftool: Do not check return value from libbpf_set_strict_mode()
Quentin Monnet [Fri, 10 Jun 2022 11:26:48 +0000 (12:26 +0100)] 
bpftool: Do not check return value from libbpf_set_strict_mode()

The function always returns 0, so we don't need to check whether the
return value is 0 or not.

This change was first introduced in commit a777e18f1bcd ("bpftool: Use
libbpf 1.0 API mode instead of RLIMIT_MEMLOCK"), but later reverted to
restore the unconditional rlimit bump in bpftool. Let's re-add it.

Co-developed-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220610112648.29695-3-quentin@isovalent.com
4 years agoRevert "bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK"
Quentin Monnet [Fri, 10 Jun 2022 11:26:47 +0000 (12:26 +0100)] 
Revert "bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK"

This reverts commit a777e18f1bcd32528ff5dfd10a6629b655b05eb8.

In commit a777e18f1bcd ("bpftool: Use libbpf 1.0 API mode instead of
RLIMIT_MEMLOCK"), we removed the rlimit bump in bpftool, because the
kernel has switched to memcg-based memory accounting. Thanks to the
LIBBPF_STRICT_AUTO_RLIMIT_MEMLOCK, we attempted to keep compatibility
with other systems and ask libbpf to raise the limit for us if
necessary.

How do we know if memcg-based accounting is supported? There is a probe
in libbpf to check this. But this probe currently relies on the
availability of a given BPF helper, bpf_ktime_get_coarse_ns(), which
landed in the same kernel version as the memory accounting change. This
works in the generic case, but it may fail, for example, if the helper
function has been backported to an older kernel. This has been observed
for Google Cloud's Container-Optimized OS (COS), where the helper is
available but rlimit is still in use. The probe succeeds, the rlimit is
not raised, and probing features with bpftool, for example, fails.

A patch was submitted [0] to update this probe in libbpf, based on what
the cilium/ebpf Go library does [1]. It would lower the soft rlimit to
0, attempt to load a BPF object, and reset the rlimit. But it may induce
some hard-to-debug flakiness if another process starts, or the current
application is killed, while the rlimit is reduced, and the approach was
discarded.

As a workaround to ensure that the rlimit bump does not depend on the
availability of a given helper, we restore the unconditional rlimit bump
in bpftool for now.

  [0] https://lore.kernel.org/bpf/20220609143614.97837-1-quentin@isovalent.com/
  [1] https://github.com/cilium/ebpf/blob/v0.9.0/rlimit/rlimit.go#L39

Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Yafang Shao <laoar.shao@gmail.com>
Cc: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/bpf/20220610112648.29695-2-quentin@isovalent.com
4 years agoi2c: mediatek: Fix an error handling path in mtk_i2c_probe()
Christophe JAILLET [Sun, 22 May 2022 12:22:07 +0000 (14:22 +0200)] 
i2c: mediatek: Fix an error handling path in mtk_i2c_probe()

The clsk are prepared, enabled, then disabled. So if an error occurs after
the disable step, they are still prepared.

Add an error handling path to unprepare the clks in such a case, as already
done in the .remove function.

Fixes: 8b4fc246c3ff ("i2c: mediatek: Optimize master_xfer() and avoid circular locking")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
4 years agoi2c: mv64xxx: Add atomic_xfer method to driver
Chris Morgan [Wed, 30 Mar 2022 17:16:57 +0000 (12:16 -0500)] 
i2c: mv64xxx: Add atomic_xfer method to driver

Add an atomic_xfer method to the driver so that it behaves correctly
when controlling a PMIC that is responsible for device shutdown.

The atomic_xfer method added is similar to the one from the i2c-rk3x
driver. When running an atomic_xfer a bool flag in the driver data is
set, the interrupt is not unmasked on transfer start, and the IRQ
handler is manually invoked while waiting for pending transfers to
complete.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
4 years agoi2c: mv64xxx: Remove shutdown method from driver
Chris Morgan [Fri, 25 Mar 2022 18:06:25 +0000 (13:06 -0500)] 
i2c: mv64xxx: Remove shutdown method from driver

When I attempt to shut down (or reboot) my R8 based NTC CHIP with this
i2c driver I get the following error: "i2c i2c-0: mv64xxx: I2C bus
locked, block: 1, time_left: 0". Reboots are successful but shutdowns
freeze. If I comment out the shutdown routine the device both reboots
and shuts down successfully without receiving this error (however it
does receive a warning of missing atomic_xfer).

It appears that very few i2c drivers have a shutdown method, I assume
because these devices are often used to communicate with PMICs (such
as in my case with the R8 based NTC CHIP). I'm proposing we simply
remove this method so long as it doesn't cause trouble for others
downstream. I'll work on an atomic_xfer method and submit that in
a different patch.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
4 years agoi2c: xiic: Fix the type check for xiic_wakeup
Shubhrajyoti Datta [Tue, 14 Jun 2022 06:18:55 +0000 (11:48 +0530)] 
i2c: xiic: Fix the type check for xiic_wakeup

Fix the coverity warning
mixed_enum_type: enumerated type mixed with another type

We are passing an enum in the xiic_wakeup lets change
the function parameters to reflect that.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Acked-by: Michal Simek <michal.simek@amd.com>
[wsa: fixed $subject with proper prefix]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
4 years agobpf, arm: Remove unused function emit_a32_alu_r()
YueHaibing [Sat, 11 Jun 2022 04:09:04 +0000 (12:09 +0800)] 
bpf, arm: Remove unused function emit_a32_alu_r()

Since commit b18bea2a45b1 ("ARM: net: bpf: improve 64-bit ALU implementation")
this is unused anymore, so can remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220611040904.8976-1-yuehaibing@huawei.com
4 years agodt-bindings: timer: Add Nomadik MTU binding
Linus Walleij [Thu, 26 May 2022 21:36:21 +0000 (23:36 +0200)] 
dt-bindings: timer: Add Nomadik MTU binding

The Nomadik MTU timer has been used in devicetrees forever
but somehow we missed to add a binding for it. Fix it
by simply adding it.

Cc: Lee Jones <lee.jones@linaro.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220526213621.373727-1-linus.walleij@linaro.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
4 years agodrm/msm: use for_each_sgtable_sg to iterate over scatterlist
Jonathan Marek [Mon, 13 Jun 2022 22:10:19 +0000 (18:10 -0400)] 
drm/msm: use for_each_sgtable_sg to iterate over scatterlist

The dma_map_sgtable() call (used to invalidate cache) overwrites sgt->nents
with 1, so msm_iommu_pagetable_map maps only the first physical segment.

To fix this problem use for_each_sgtable_sg(), which uses orig_nents.

Fixes: b145c6e65eb0 ("drm/msm: Add support to create a local pagetable")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20220613221019.11399-1-jonathan@marek.ca
Signed-off-by: Rob Clark <robdclark@chromium.org>
4 years agonetfs: fix up netfs_inode_init() docbook comment
Linus Torvalds [Tue, 14 Jun 2022 17:36:11 +0000 (10:36 -0700)] 
netfs: fix up netfs_inode_init() docbook comment

Commit e81fb4198e27 ("netfs: Further cleanups after struct netfs_inode
wrapper introduced") changed the argument types and names, and actually
updated the comment too (although that was thanks to David Howells, not
me: my original patch only changed the code).

But the comment fixup didn't go quite far enough, and didn't change the
argument name in the comment, resulting in

  include/linux/netfs.h:314: warning: Function parameter or member 'ctx' not described in 'netfs_inode_init'
  include/linux/netfs.h:314: warning: Excess function parameter 'inode' description in 'netfs_inode_init'

during htmldoc generation.

Fixes: e81fb4198e27 ("netfs: Further cleanups after struct netfs_inode wrapper introduced")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
4 years agoselftests: Fix clang cross compilation
Mark Brown [Tue, 14 Jun 2022 12:10:45 +0000 (13:10 +0100)] 
selftests: Fix clang cross compilation

Unlike GCC clang uses a single compiler image to support multiple target
architectures meaning that we can't simply rely on CROSS_COMPILE to select
the output architecture. Instead we must pass --target to the compiler to
tell it what to output, kselftest was not doing this so cross compilation
of kselftest using clang resulted in kselftest being built for the host
architecture.

More work is required to fix tests using custom rules but this gets the
bulk of things building.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
4 years agodrm/amd/display: Cap OLED brightness per max frame-average luminance
Roman Li [Thu, 19 May 2022 18:41:16 +0000 (14:41 -0400)] 
drm/amd/display: Cap OLED brightness per max frame-average luminance

[Why]
For OLED eDP the Display Manager uses max_cll value as a limit
for brightness control.
max_cll defines the content light luminance for individual pixel.
Whereas max_fall defines frame-average level luminance.
The user may not observe the difference in brightness in between
max_fall and max_cll.
That negatively impacts the user experience.

[How]
Use max_fall value instead of max_cll as a limit for brightness control.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
4 years agodrm/amdgpu: Fix GTT size reporting in amdgpu_ioctl
Michel Dänzer [Fri, 10 Jun 2022 13:54:26 +0000 (15:54 +0200)] 
drm/amdgpu: Fix GTT size reporting in amdgpu_ioctl

The commit below changed the TTM manager size unit from pages to
bytes, but failed to adjust the corresponding calculations in
amdgpu_ioctl.

Fixes: dfa714b88eb0 ("drm/amdgpu: remove GTT accounting v2")
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1930
Bug: https://gitlab.freedesktop.org/mesa/mesa/-/issues/6642
Tested-by: Martin Roukala <martin.roukala@mupuf.org>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.18.x
4 years agoio_uring: remove IORING_CLOSE_FD_AND_FILE_SLOT
Pavel Begunkov [Tue, 14 Jun 2022 16:51:18 +0000 (17:51 +0100)] 
io_uring: remove IORING_CLOSE_FD_AND_FILE_SLOT

This partially reverts a7c41b4687f5902af70cd559806990930c8a307b

Even though IORING_CLOSE_FD_AND_FILE_SLOT might save cycles for some
users, but it tries to do two things at a time and it's not clear how to
handle errors and what to return in a single result field when one part
fails and another completes well. Kill it for now.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/837c745019b3795941eee4fcfd7de697886d645b.1655224415.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoRevert "io_uring: add buffer selection support to IORING_OP_NOP"
Pavel Begunkov [Tue, 14 Jun 2022 16:51:17 +0000 (17:51 +0100)] 
Revert "io_uring: add buffer selection support to IORING_OP_NOP"

This reverts commit 3d200242a6c968af321913b635fc4014b238cba4.

Buffer selection with nops was used for debugging and benchmarking but
is useless in real life. Let's revert it before it's released.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/c5012098ca6b51dfbdcb190f8c4e3c0bf1c965dc.1655224415.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoRevert "io_uring: support CQE32 for nop operation"
Pavel Begunkov [Tue, 14 Jun 2022 16:51:16 +0000 (17:51 +0100)] 
Revert "io_uring: support CQE32 for nop operation"

This reverts commit 2bb04df7c2af9dad5d28771c723bc39b01cf7df4.

CQE32 nops were used for debugging and benchmarking but it doesn't
target any real use case. Revert it, we can return it back if someone
finds a good way to use it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/5ff623d84ccb4b3f3b92a3ea41cdcfa612f3d96f.1655224415.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoKVM: selftests: Use kvm_has_cap(), not kvm_check_cap(), where possible
Sean Christopherson [Mon, 13 Jun 2022 16:19:42 +0000 (16:19 +0000)] 
KVM: selftests: Use kvm_has_cap(), not kvm_check_cap(), where possible

Replace calls to kvm_check_cap() that treat its return as a boolean with
calls to kvm_has_cap().  Several instances of kvm_check_cap() were missed
when kvm_has_cap() was introduced.

Reported-by: Andrew Jones <drjones@redhat.com>
Fixes: 3ea9b809650b ("KVM: selftests: Add kvm_has_cap() to provide syntactic sugar")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220613161942.1586791-5-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
4 years agoKVM: selftests: Drop a duplicate TEST_ASSERT() in vm_nr_pages_required()
Sean Christopherson [Mon, 13 Jun 2022 16:19:41 +0000 (16:19 +0000)] 
KVM: selftests: Drop a duplicate TEST_ASSERT() in vm_nr_pages_required()

Remove a duplicate TEST_ASSERT() on the number of runnable vCPUs in
vm_nr_pages_required() that snuck in during a rebase gone bad.

Reported-by: Andrew Jones <drjones@redhat.com>
Fixes: 6e1d13bf3815 ("KVM: selftests: Move per-VM/per-vCPU nr pages calculation to __vm_create()")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220613161942.1586791-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
4 years agoKVM: selftests: Call a dummy helper in VM/vCPU ioctls() to enforce type
Sean Christopherson [Mon, 13 Jun 2022 16:19:40 +0000 (16:19 +0000)] 
KVM: selftests: Call a dummy helper in VM/vCPU ioctls() to enforce type

Replace the goofy static_assert on the size of the @vm/@vcpu parameters
with a call to a dummy helper, i.e. let the compiler naturally complain
about an incompatible type instead of homebrewing a poor replacement.

Reported-by: Andrew Jones <drjones@redhat.com>
Fixes: fcba483e8246 ("KVM: selftests: Sanity check input to ioctls() at build time")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220613161942.1586791-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
4 years agoKVM: selftests: Add a missing apostrophe in comment to show ownership
Sean Christopherson [Mon, 13 Jun 2022 16:19:39 +0000 (16:19 +0000)] 
KVM: selftests: Add a missing apostrophe in comment to show ownership

Add an apostrophe in a comment about it being the caller's, not callers,
responsibility to free an object.

Reported-by: Andrew Jones <drjones@redhat.com>
Fixes: 768e9a61856b ("KVM: selftests: Purge vm+vcpu_id == vcpu silliness")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220613161942.1586791-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
4 years agoKVM: selftests: kvm_binary_stats_test: Fix index expressions
Andrew Jones [Tue, 14 Jun 2022 08:10:41 +0000 (10:10 +0200)] 
KVM: selftests: kvm_binary_stats_test: Fix index expressions

kvm_binary_stats_test accepts two arguments, the number of vms
and number of vcpus. If these inputs are not equal then the
test would likely crash for one reason or another due to using
miscalculated indices for the vcpus array. Fix the index
expressions by swapping the use of i and j.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20220614081041.2571511-1-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
4 years agoice: Fix memory corruption in VF driver
Przemyslaw Patynowski [Thu, 2 Jun 2022 10:09:17 +0000 (12:09 +0200)] 
ice: Fix memory corruption in VF driver

Disable VF's RX/TX queues, when it's disabled. VF can have queues enabled,
when it requests a reset. If PF driver assumes that VF is disabled,
while VF still has queues configured, VF may unmap DMA resources.
In such scenario device still can map packets to memory, which ends up
silently corrupting it.
Previously, VF driver could experience memory corruption, which lead to
crash:
[ 5119.170157] BUG: unable to handle kernel paging request at 00001b9780003237
[ 5119.170166] PGD 0 P4D 0
[ 5119.170173] Oops: 0002 [#1] PREEMPT_RT SMP PTI
[ 5119.170181] CPU: 30 PID: 427592 Comm: kworker/u96:2 Kdump: loaded Tainted: G        W I      --------- -  - 4.18.0-372.9.1.rt7.166.el8.x86_64 #1
[ 5119.170189] Hardware name: Dell Inc. PowerEdge R740/014X06, BIOS 2.3.10 08/15/2019
[ 5119.170193] Workqueue: iavf iavf_adminq_task [iavf]
[ 5119.170219] RIP: 0010:__page_frag_cache_drain+0x5/0x30
[ 5119.170238] Code: 0f 0f b6 77 51 85 f6 74 07 31 d2 e9 05 df ff ff e9 90 fe ff ff 48 8b 05 49 db 33 01 eb b4 0f 1f 80 00 00 00 00 0f 1f 44 00 00 <f0> 29 77 34 74 01 c3 48 8b 07 f6 c4 80 74 0f 0f b6 77 51 85 f6 74
[ 5119.170244] RSP: 0018:ffffa43b0bdcfd78 EFLAGS: 00010282
[ 5119.170250] RAX: ffffffff896b3e40 RBX: ffff8fb282524000 RCX: 0000000000000002
[ 5119.170254] RDX: 0000000049000000 RSI: 0000000000000000 RDI: 00001b9780003203
[ 5119.170259] RBP: ffff8fb248217b00 R08: 0000000000000022 R09: 0000000000000009
[ 5119.170262] R10: 2b849d6300000000 R11: 0000000000000020 R12: 0000000000000000
[ 5119.170265] R13: 0000000000001000 R14: 0000000000000009 R15: 0000000000000000
[ 5119.170269] FS:  0000000000000000(0000) GS:ffff8fb1201c0000(0000) knlGS:0000000000000000
[ 5119.170274] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5119.170279] CR2: 00001b9780003237 CR3: 00000008f3e1a003 CR4: 00000000007726e0
[ 5119.170283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 5119.170286] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 5119.170290] PKRU: 55555554
[ 5119.170292] Call Trace:
[ 5119.170298]  iavf_clean_rx_ring+0xad/0x110 [iavf]
[ 5119.170324]  iavf_free_rx_resources+0xe/0x50 [iavf]
[ 5119.170342]  iavf_free_all_rx_resources.part.51+0x30/0x40 [iavf]
[ 5119.170358]  iavf_virtchnl_completion+0xd8a/0x15b0 [iavf]
[ 5119.170377]  ? iavf_clean_arq_element+0x210/0x280 [iavf]
[ 5119.170397]  iavf_adminq_task+0x126/0x2e0 [iavf]
[ 5119.170416]  process_one_work+0x18f/0x420
[ 5119.170429]  worker_thread+0x30/0x370
[ 5119.170437]  ? process_one_work+0x420/0x420
[ 5119.170445]  kthread+0x151/0x170
[ 5119.170452]  ? set_kthread_struct+0x40/0x40
[ 5119.170460]  ret_from_fork+0x35/0x40
[ 5119.170477] Modules linked in: iavf sctp ip6_udp_tunnel udp_tunnel mlx4_en mlx4_core nfp tls vhost_net vhost vhost_iotlb tap tun xt_CHECKSUM ipt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 nft_compat nft_counter nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables nfnetlink bridge stp llc rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache sunrpc intel_rapl_msr iTCO_wdt iTCO_vendor_support dell_smbios wmi_bmof dell_wmi_descriptor dcdbas kvm_intel kvm irqbypass intel_rapl_common isst_if_common skx_edac irdma nfit libnvdimm x86_pkg_temp_thermal i40e intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel ib_uverbs rapl ipmi_ssif intel_cstate intel_uncore mei_me pcspkr acpi_ipmi ib_core mei lpc_ich i2c_i801 ipmi_si ipmi_devintf wmi ipmi_msghandler acpi_power_meter xfs libcrc32c sd_mod t10_pi sg mgag200 drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ice ahci drm libahci crc32c_intel libata tg3 megaraid_sas
[ 5119.170613]  i2c_algo_bit dm_mirror dm_region_hash dm_log dm_mod fuse [last unloaded: iavf]
[ 5119.170627] CR2: 00001b9780003237

Fixes: ec4f5a436bdf ("ice: Check if VF is disabled for Opcode and other operations")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Co-developed-by: Slawomir Laba <slawomirx.laba@intel.com>
Signed-off-by: Slawomir Laba <slawomirx.laba@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
4 years agoice: Fix queue config fail handling
Przemyslaw Patynowski [Thu, 2 Jun 2022 10:09:04 +0000 (12:09 +0200)] 
ice: Fix queue config fail handling

Disable VF's RX/TX queues, when VIRTCHNL_OP_CONFIG_VSI_QUEUES fail.
Not disabling them might lead to scenario, where PF driver leaves VF
queues enabled, when VF's VSI failed queue config.
In this scenario VF should not have RX/TX queues enabled. If PF failed
to set up VF's queues, VF will reset due to TX timeouts in VF driver.
Initialize iterator 'i' to -1, so if error happens prior to configuring
queues then error path code will not disable queue 0. Loop that
configures queues will is using same iterator, so error path code will
only disable queues that were configured.

Fixes: 77ca27c41705 ("ice: add support for virtchnl_queue_select.[tx|rx]_queues bitmap")
Suggested-by: Slawomir Laba <slawomirx.laba@intel.com>
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
4 years agoice: Sync VLAN filtering features for DVM
Roman Storozhenko [Tue, 7 Jun 2022 06:54:57 +0000 (08:54 +0200)] 
ice: Sync VLAN filtering features for DVM

VLAN filtering features, that is C-Tag and S-Tag, in DVM mode must be
both enabled or disabled.
In case of turning off/on only one of the features, another feature must
be turned off/on automatically with issuing an appropriate message to
the kernel log.

Fixes: 1babaf77f49d ("ice: Advertise 802.1ad VLAN filtering and offloads for PF netdev")
Signed-off-by: Roman Storozhenko <roman.storozhenko@intel.com>
Co-developed-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
4 years agoice: Fix PTP TX timestamp offset calculation
Michal Michalik [Tue, 10 May 2022 11:03:43 +0000 (13:03 +0200)] 
ice: Fix PTP TX timestamp offset calculation

The offset was being incorrectly calculated for E822 - that led to
collisions in choosing TX timestamp register location when more than
one port was trying to use timestamping mechanism.

In E822 one quad is being logically split between ports, so quad 0 is
having trackers for ports 0-3, quad 1 ports 4-7 etc. Each port should
have separate memory location for tracking timestamps. Due to error for
example ports 1 and 2 had been assigned to quad 0 with same offset (0),
while port 1 should have offset 0 and 1 offset 16.

Fix it by correctly calculating quad offset.

Fixes: 3a7496234d17 ("ice: implement basic E822 PTP support")
Signed-off-by: Michal Michalik <michal.michalik@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
4 years agoarm64: dts: altera: adjust whitespace around '='
Krzysztof Kozlowski [Thu, 26 May 2022 20:46:02 +0000 (22:46 +0200)] 
arm64: dts: altera: adjust whitespace around '='

Fix whitespace coding style: use single space instead of tabs or
multiple spaces around '=' sign in property assignment.  No functional
changes (same DTB).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
4 years agoARM: dts: Add DTS files for bcmbca SoC BCM63148
William Zhang [Fri, 10 Jun 2022 00:21:12 +0000 (17:21 -0700)] 
ARM: dts: Add DTS files for bcmbca SoC BCM63148

Add DTS for ARMv7 based broadband SoC BCM63148. bcm63148.dtsi is the SoC
description DTS header and bcm963148.dts is a simple DTS file for
Broadcom BCM963148 Reference board that only enable the UART port.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
4 years agodt-bindings: arm: Add BCM63148 SoC
William Zhang [Fri, 10 Jun 2022 00:21:11 +0000 (17:21 -0700)] 
dt-bindings: arm: Add BCM63148 SoC

Add BCM63148 SoC device tree description to bcmbca binding document.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
4 years agodt-bindings: arm64: Add BCM6856 SoC
William Zhang [Wed, 8 Jun 2022 18:04:35 +0000 (11:04 -0700)] 
dt-bindings: arm64: Add BCM6856 SoC

Add BCM6856 SoC device tree description to bcmbca binding document.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>