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Author SHA1 Message Date
Frederic Weisbecker
0a5e9bd31e rcu: Remove full ordering on second EQS snapshot
When the grace period kthread checks the extended quiescent state
counter of a CPU, full ordering is necessary to ensure that either:

* If the GP kthread observes the remote target in an extended quiescent
  state, then that target must observe all accesses prior to the current
  grace period, including the current grace period sequence number, once
  it exits that extended quiescent state. Also the GP kthread must
  observe all accesses performed by the target prior it entering in
  EQS.

or:

* If the GP kthread observes the remote target NOT in an extended
  quiescent state, then the target further entering in an extended
  quiescent state must observe all accesses prior to the current
  grace period, including the current grace period sequence number, once
  it enters that extended quiescent state. Also the GP kthread later
  observing that EQS must also observe all accesses performed by the
  target prior it entering in EQS.

This ordering is explicitly performed both on the first EQS snapshot
and on the second one as well through the combination of a preceding
full barrier followed by an acquire read. However the second snapshot's
full memory barrier is redundant and not needed to enforce the above
guarantees:

    GP kthread                  Remote target
    ----                        -----
    // Access prior GP
    WRITE_ONCE(A, 1)
    // first snapshot
    smp_mb()
    x = smp_load_acquire(EQS)
                               // Access prior GP
                               WRITE_ONCE(B, 1)
                               // EQS enter
                               // implied full barrier by atomic_add_return()
                               atomic_add_return(RCU_DYNTICKS_IDX, EQS)
                               // implied full barrier by atomic_add_return()
                               READ_ONCE(A)
    // second snapshot
    y = smp_load_acquire(EQS)
    z = READ_ONCE(B)

If the GP kthread above fails to observe the remote target in EQS
(x not in EQS), the remote target will observe A == 1 after further
entering in EQS. Then the second snapshot taken by the GP kthread only
need to be an acquire read in order to observe z == 1.

Therefore remove the needless full memory barrier on second snapshot.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2024-06-28 06:43:33 -07:00
Josh Poimboeuf
42c141fbb6 x86/bugs: Add 'spectre_bhi=vmexit' cmdline option
In cloud environments it can be useful to *only* enable the vmexit
mitigation and leave syscalls vulnerable.  Add that as an option.

This is similar to the old spectre_bhi=auto option which was removed
with the following commit:

  36d4fe147c ("x86/bugs: Remove CONFIG_BHI_MITIGATION_AUTO and spectre_bhi=auto")

with the main difference being that this has a more descriptive name and
is disabled by default.

Mitigation switch requested by Maksim Davydov <davydov-max@yandex-team.ru>.

  [ bp: Massage. ]

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Reviewed-by: Nikolay Borisov <nik.borisov@suse.com>
Link: https://lore.kernel.org/r/2cbad706a6d5e1da2829e5e123d8d5c80330148c.1719381528.git.jpoimboe@kernel.org
2024-06-28 15:35:54 +02:00
Josh Poimboeuf
4586c93ebf x86/bugs: Remove duplicate Spectre cmdline option descriptions
Duplicating the documentation of all the Spectre kernel cmdline options
in two separate files is unwieldy and error-prone.  Instead just add a
reference to kernel-parameters.txt from spectre.rst.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Link: https://lore.kernel.org/r/450b5f4ffe891a8cc9736ec52b0c6f225bab3f4b.1719381528.git.jpoimboe@kernel.org
2024-06-28 15:28:38 +02:00
Josh Poimboeuf
9142be9e64 x86/syscall: Mark exit[_group] syscall handlers __noreturn
The direct-call syscall dispatch function doesn't know that the exit()
and exit_group() syscall handlers don't return, so the call sites aren't
optimized accordingly.

Fix that by marking the exit syscall declarations __noreturn.

Fixes the following warnings:

  vmlinux.o: warning: objtool: x64_sys_call+0x2804: __x64_sys_exit() is missing a __noreturn annotation
  vmlinux.o: warning: objtool: ia32_sys_call+0x29b6: __ia32_sys_exit_group() is missing a __noreturn annotation

Fixes: 1e3ad78334 ("x86/syscall: Don't force use of indirect calls for system calls")
Closes: https://lkml.kernel.org/lkml/6dba9b32-db2c-4e6d-9500-7a08852f17a3@paulmck-laptop
Reported-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/r/5d8882bc077d8eadcc7fd1740b56dfb781f12288.1719381528.git.jpoimboe@kernel.org
2024-06-28 15:23:38 +02:00
Michael Walle
8ad49a92cf drm/mediatek/dp: Fix spurious kfree()
drm_edid_to_sad() might return an error or just zero. If that is the
case, we must not free the SADs because there was no allocation in
the first place.

Fixes: dab12fa8d2 ("drm/mediatek/dp: fix memory leak on ->get_edid callback audio detection")
Signed-off-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20240604083337.1879188-1-mwalle@kernel.org/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2024-06-28 13:01:43 +00:00
Jeff Johnson
f219af8a3f s390/3270: Add missing MODULE_DESCRIPTION() macros
With ARCH=s390, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/s390/char/raw3270.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/s390/char/con3270.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/s390/char/fs3270.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240615-md-s390-drivers-s390-char-v1-1-d1cd23ff6476@quicinc.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2024-06-28 14:52:31 +02:00
Jeff Johnson
b051271dba s390/dcssblk: Add missing MODULE_DESCRIPTION() macro
With ARCH=s390, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/s390/block/dcssblk.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240615-md-s390-drivers-s390-block-dcssblk-v1-1-d9d19703abcb@quicinc.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2024-06-28 14:52:31 +02:00
Jeff Johnson
7a6d19c3c7 s390/mm: Add missing MODULE_DESCRIPTION() macro
With ARCH=s390, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in arch/s390/mm/cmm.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240615-md-s390-arch-s390-mm-v1-1-a360eed8c7c3@quicinc.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2024-06-28 14:52:31 +02:00
Jeff Johnson
4657a8a1c0 s390/lib: Add missing MODULE_DESCRIPTION() macros
With ARCH=s390, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in arch/s390/lib/test_kprobes_s390.o
WARNING: modpost: missing MODULE_DESCRIPTION() in arch/s390/lib/test_unwind.o
WARNING: modpost: missing MODULE_DESCRIPTION() in arch/s390/lib/test_modules.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240615-md-s390-arch-s390-lib-v1-1-d7424b943973@quicinc.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2024-06-28 14:52:30 +02:00
Jeff Johnson
68d7bb5421 s390/crc32: Add missing MODULE_DESCRIPTION() macro
With ARCH=s390, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in arch/s390/crypto/crc32-vx_s390.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240615-md-s390-arch-s390-crypto-v1-1-7120d406e7c7@quicinc.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2024-06-28 14:52:30 +02:00
Jerome Brunet
730674b21d
ASoC: meson: tdm: add sample rate support up to 768kHz
Add support for 705.6kHz and 768kHz sample rates

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://patch.msgid.link/20240628123256.2019224-1-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-06-28 13:39:33 +01:00
Shengjiu Wang
288921232d
ASoC: dt-bindings: fsl,xcvr: Adjust the number of interrupts
On i.MX8MP, there are 3 interrupts, the third interrupt is
SPDIF wakeup interrupt from PHY

Add ref: dai-common.yaml for #sound-dai-cells is needed and
XCVR is a DAI device.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/1719481981-4069-2-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-06-28 13:39:32 +01:00
Chen Ni
1a70579723
ASoC: max98088: Check for clk_prepare_enable() error
clk_prepare_enable() may fail, so we should better check its return
value and propagate it in the case of error.

Fixes: 62a7fc32a6 ("ASoC: max98088: Add master clock handling")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://patch.msgid.link/20240628080534.843815-1-nichen@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-06-28 13:39:31 +01:00
Yang Li
061505a1a6
ASoC: Remove unneeded semicolon
./sound/soc/codecs/ak4619.c:757:2-3: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9442
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://patch.msgid.link/20240628052406.36644-1-yang.lee@linux.alibaba.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-06-28 13:39:30 +01:00
Jerome Brunet
4adf454ff6
ASoC: soc-utils: allow sample rate up to 768kHz for the dummy dai
The dummy DAI should allow any (reasonable) rates possible.
Make the rate continuous for dummy and set range from 5512Hz to 768kHz

The change is mostly cosmetic as dummy is skipped when setting
the hwparams.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://patch.msgid.link/20240628120130.2015665-1-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-06-28 13:39:29 +01:00
Piotr Wojtaszczyk
0959de657a
ASoC: fsl: Add i2s and pcm drivers for LPC32xx CPUs
This driver was ported from an old version in linux 2.6.27 and adjusted
for the new ASoC framework and DMA API.

Signed-off-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
Link: https://patch.msgid.link/20240627150046.258795-12-piotr.wojtaszczyk@timesys.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-06-28 13:39:23 +01:00
Piotr Wojtaszczyk
752fea92d9
ASoC: dt-bindings: lpc32xx: Add lpc32xx i2s DT binding
Add nxp,lpc3220-i2s DT binding documentation.

Signed-off-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240627150046.258795-4-piotr.wojtaszczyk@timesys.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-06-28 13:39:22 +01:00
Marc Kleine-Budde
69e2326a21 can: gs_usb: add VID/PID for Xylanta SAINT3 product family
Add support for the Xylanta SAINT3 product family.

Cc: Andy Jackson <andy@xylanta.com>
Cc: Ken Aitchison <ken@xylanta.com>
Tested-by: Andy Jackson <andy@xylanta.com>
Link: https://lore.kernel.org/all/20240625140353.769373-1-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2024-06-28 14:38:05 +02:00
Christian Brauner
682d12148c
Merge patch series "Add the ability to query mount options in statmount"
Josef Bacik <josef@toxicpanda.com> says:

Currently if you want to get mount options for a mount and you're using
statmount(), you still have to open /proc/mounts to parse the mount options.
statmount() does have the ability to store an arbitrary string however,
additionally the way we do that is with a seq_file, which is also how we use
->show_options for the individual file systems.

Extent statmount() to have a flag for fetching the mount options of a mount.
This allows users to not have to parse /proc mount for anything related to a
mount.  I've extended the existing statmount() test to validate this feature
works as expected.  As you can tell from the ridiculous amount of silly string
parsing, this is a huge win for users and climate change as we will no longer
have to waste several cycles parsing strings anymore.

Josef Bacik (4):
  fs: rename show_mnt_opts -> show_vfsmnt_opts
  fs: add a helper to show all the options for a mount
  fs: export mount options via statmount()
  sefltests: extend the statmount test for mount options

 fs/internal.h                                 |   5 +
 fs/namespace.c                                |   7 +
 fs/proc_namespace.c                           |  29 ++--
 include/uapi/linux/mount.h                    |   3 +-
 .../filesystems/statmount/statmount_test.c    | 131 +++++++++++++++++-
 5 files changed, 164 insertions(+), 11 deletions(-)

Link: https://lore.kernel.org/r/cover.1719257716.git.josef@toxicpanda.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-06-28 14:36:44 +02:00
Josef Bacik
e2f718e255
sefltests: extend the statmount test for mount options
Now that we support exporting mount options, via statmount(), add a test
to validate that it works.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/r/cabe09f0933d9c522da6e7b6cc160254f4f6c3b9.1719257716.git.josef@toxicpanda.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
[brauner: simplify and fix]
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-06-28 14:36:44 +02:00
Christian Brauner
d842379313
fs: use guard for namespace_sem in statmount()
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-06-28 14:36:43 +02:00
Josef Bacik
f9af549d1f
fs: export mount options via statmount()
statmount() can export arbitrary strings, so utilize the __spare1 slot
for a mnt_opts string pointer, and then support asking for and setting
the mount options during statmount().  This calls into the helper for
showing mount options, which already uses a seq_file, so fits in nicely
with our existing mechanism for exporting strings via statmount().

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/r/3aa6bf8bd5d0a21df9ebd63813af8ab532c18276.1719257716.git.josef@toxicpanda.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
[brauner: only call sb->s_op->show_options()]
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-06-28 14:36:43 +02:00
Christian Brauner
a7ebb0fe43
Merge patch series "Support foreign mount namespace with statmount/listmount"
Josef Bacik <josef@toxicpanda.com> says:

Currently the only way to iterate over mount entries in mount namespaces that
aren't your own is to trawl through /proc in order to find /proc/$PID/mountinfo
for the mount namespace that you want.  This is hugely inefficient, so extend
both statmount() and listmount() to allow specifying a mount namespace id in
order to get to mounts in other mount namespaces.

There are a few components to this

1. Having a global index of the mount namespace based on the ->seq value in the
   mount namespace.  This gives us a unique identifier that isn't re-used.
2. Support looking up mount namespaces based on that unique identifier, and
   validating the user has permission to access the given mount namespace.
3. Provide a new ioctl() on nsfs in order to extract the unique identifier we
   can use for statmount() and listmount().

The code is relatively straightforward, and there is a selftest provided to
validate everything works properly.

This is based on vfs.all as of last week, so must be applied onto a tree that
has Christians error handling rework in this area.  If you wish you can pull the
tree directly here

https://github.com/josefbacik/linux/tree/listmount.combined

Christian and I collaborated on this series, which is why there's patches from
both of us in this series.

Christian Brauner (4):
  fs: relax permissions for listmount()
  fs: relax permissions for statmount()
  fs: Allow listmount() in foreign mount namespace
  fs: Allow statmount() in foreign mount namespace

Josef Bacik (4):
  fs: keep an index of current mount namespaces
  fs: export the mount ns id via statmount
  fs: add an ioctl to get the mnt ns id from nsfs
  selftests: add a test for the foreign mnt ns extensions

fs/mount.h                                    |   2 +
 fs/namespace.c                                | 240 ++++++++++--
 fs/nsfs.c                                     |  14 +
 include/uapi/linux/mount.h                    |   6 +-
 include/uapi/linux/nsfs.h                     |   2 +
 .../selftests/filesystems/statmount/Makefile  |   2 +-
 .../filesystems/statmount/statmount.h         |  46 +++
 .../filesystems/statmount/statmount_test.c    |  53 +--
 .../filesystems/statmount/statmount_test_ns.c | 360 ++++++++++++++++++
 9 files changed, 659 insertions(+), 66 deletions(-)
 create mode 100644 tools/testing/selftests/filesystems/statmount/statmount.h
 create mode 100644 tools/testing/selftests/filesystems/statmount/statmount_test_ns.c

Link: https://lore.kernel.org/r/cover.1719243756.git.josef@toxicpanda.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-06-28 14:36:43 +02:00
Josef Bacik
c72b6b7224
fs: rename show_mnt_opts -> show_vfsmnt_opts
This name is more consistent with what the helper does, which is to just
show the vfsmount options.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/r/fb363c62ffbf78a18095d596a19b8412aa991251.1719257716.git.josef@toxicpanda.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-06-28 14:36:43 +02:00
Josef Bacik
d896f71ce1
selftests: add a test for the foreign mnt ns extensions
This tests both statmount and listmount to make sure they work with the
extensions that allow us to specify a mount ns to enter in order to find
the mount entries.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/r/2d1a35bc9ab94b4656c056c420f25e429e7eb0b1.1719243756.git.josef@toxicpanda.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-06-28 14:36:42 +02:00
Joerg Roedel
09aaa2d064 MAINTAINERS: Update IOMMU tree location
Update the maintainers entries to the new location of the
IOMMU tree.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-06-28 14:31:50 +02:00
Nathan Lynch
7bdd1c6c87 powerpc/prom: Add CPU info to hardware description string later
cur_cpu_spec->cpu_name is appended to ppc_hw_desc before cur_cpu_spec
has taken on its final value. This is illustrated on pseries by
comparing the CPU name as reported at boot ("POWER8E (raw)") to the
contents of /proc/cpuinfo ("POWER8 (architected)"):

  $ dmesg | grep Hardware
  Hardware name: IBM,8408-E8E POWER8E (raw) 0x4b0201 0xf000004 \
    of:IBM,FW860.50 (SV860_146) hv:phyp pSeries

  $ grep -m 1 ^cpu /proc/cpuinfo
  cpu             : POWER8 (architected), altivec supported

Some 44x models would appear to be affected as well; see
identical_pvr_fixup().

This results in incorrect CPU information in stack dumps --
ppc_hw_desc is an input to dump_stack_set_arch_desc().

Delay gathering the CPU name until after all potential calls to
identify_cpu().

Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Fixes: bd649d40e0 ("powerpc: Add PVR & CPU name to hardware description")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240603-fix-cpu-hwdesc-v1-1-945f2850fcaa@linux.ibm.com
2024-06-28 22:31:00 +10:00
Nathan Lynch
0974d03eb4 powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()
Smatch warns:

  arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential
  spectre issue 'args.args' [r] (local cap)

The 'nargs' and 'nret' locals come directly from a user-supplied
buffer and are used as indexes into a small stack-based array and as
inputs to copy_to_user() after they are subject to bounds checks.

Use array_index_nospec() after the bounds checks to clamp these values
for speculative execution.

Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reported-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240530-sys_rtas-nargs-nret-v1-1-129acddd4d89@linux.ibm.com
2024-06-28 22:28:58 +10:00
Christophe Leroy
d5d1a1a55a powerpc/platforms: Move files from 4xx to 44x
Only 44x uses 4xx now, so only keep one directory.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240628121201.130802-7-mpe@ellerman.id.au
2024-06-28 22:28:48 +10:00
Michael Ellerman
7bf5f0562b powerpc: Replace CONFIG_4xx with CONFIG_44x
Replace 4xx usage with 44x, and replace 4xx_SOC with 44x.

Also, as pointed out by Christophe, if 44x || BOOKE can be simplified to
just test BOOKE, because 44x always selects BOOKE.

Retain the CONFIG_4xx symbol, as there are drivers that use it to mean
4xx || 44x, those will need updating before CONFIG_4xx can be removed.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240628121201.130802-6-mpe@ellerman.id.au
2024-06-28 22:28:48 +10:00
Michael Ellerman
002b27a51b powerpc/4xx: Remove CONFIG_BOOKE_OR_40x
Now that 40x is gone, replace CONFIG_BOOKE_OR_40x by CONFIG_BOOKE.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240628121201.130802-5-mpe@ellerman.id.au
2024-06-28 22:28:48 +10:00
Christophe Leroy
732b32daef powerpc: Remove core support for 40x
Now that 40x platforms have gone, remove support
for 40x in the core of powerpc arch.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240628121201.130802-4-mpe@ellerman.id.au
2024-06-28 22:28:47 +10:00
Michael Ellerman
e939da89d0 powerpc: Remove 40x from Kconfig and defconfig
Remove 40x from Kconfig, making the code unreachable.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240628121201.130802-3-mpe@ellerman.id.au
2024-06-28 22:28:47 +10:00
Christophe Leroy
839ff58e63 powerpc/boot: Remove all 40x platforms from boot
Remove 40x platforms from the boot directory.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240628121201.130802-2-mpe@ellerman.id.au
2024-06-28 22:28:47 +10:00
Christophe Leroy
47d13a269b powerpc/40x: Remove 40x platforms.
40x platforms have been orphaned for many years.

Remove them.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240628121201.130802-1-mpe@ellerman.id.au
2024-06-28 22:28:47 +10:00
Michael Walle
9ff6df49e6 drm/mediatek: dpi/dsi: Fix possible_crtcs calculation
mtk_find_possible_crtcs() assumes that the main path will always have
the CRTC with id 0, the ext id 1 and the third id 2. This is only true
if the paths are all available. But paths are optional (see also
comment in mtk_drm_kms_init()), e.g. the main path might not be enabled
or available at all. Then the CRTC IDs will shift one up, e.g. ext will
be 0 and the third path will be 1.

To fix that, dynamically calculate the IDs by the presence of the paths.

While at it, make the return code a signed one and return -ENODEV if no
path is found and handle the error in the callers.

Fixes: 5aa8e76476 ("drm/mediatek: dpi/dsi: Change the getting possible_crtc way")
Suggested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20240606092122.2026313-1-mwalle@kernel.org/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2024-06-28 12:25:18 +00:00
David S. Miller
dc6be0b73f Merge tag 'ieee802154-for-net-2024-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wpan/wpan into main 2024-06-28 13:10:12 +01:00
Uwe Kleine-König
38767dde5f macintosh: Drop explicit initialization of struct i2c_device_id::driver_data to 0
These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.

This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240624132433.1244750-2-u.kleine-koenig@baylibre.com
2024-06-28 22:08:05 +10:00
Nicholas Piggin
21a741eb75 powerpc/pseries: Fix scv instruction crash with kexec
kexec on pseries disables AIL (reloc_on_exc), required for scv
instruction support, before other CPUs have been shut down. This means
they can execute scv instructions after AIL is disabled, which causes an
interrupt at an unexpected entry location that crashes the kernel.

Change the kexec sequence to disable AIL after other CPUs have been
brought down.

As a refresher, the real-mode scv interrupt vector is 0x17000, and the
fixed-location head code probably couldn't easily deal with implementing
such high addresses so it was just decided not to support that interrupt
at all.

Fixes: 7fa95f9ada ("powerpc/64s: system call support for scv/rfscv instructions")
Cc: stable@vger.kernel.org # v5.9+
Reported-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Closes: https://lore.kernel.org/3b4b2943-49ad-4619-b195-bc416f1d1409@linux.ibm.com
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Gautam Menghani <gautam@linux.ibm.com>
Tested-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Link: https://msgid.link/20240625134047.298759-1-npiggin@gmail.com
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2024-06-28 22:05:44 +10:00
Dragan Simic
9417909e25 arm64: dts: rockchip: Delete the SoC variant dtsi for RK3399Pro
The commit 587b4ee24f ("arm64: dts: rockchip: add core dtsi file for
RK3399Pro SoCs") describes the RK3399Pro's PCI Express interface as the way
built-in NPU communicates with the rest of the SoC.  All available evidence
shows this not to be accurate, as described in detail below.  Moreover, the
rk3399pro.dtsi isn't used anywhere, so let's delete it.

The publicly available schematics of the Radxa Rock Pi N10 carrier board [1]
and the Vamrs VMARC RK3399Pro SoM, [2] which put together form the currently
single supported RK3399Pro-based board, clearly show that the PCI Express x4
interface of this SoC is fully functional and actually not used by the SoC
to communicate with the built-in NPU.  In more detail, the VMARC SoM exports
the SoC's PCI Express interface at its board-to-board connector, and the Rock
Pi N10 routes it to an M.2 M-key slot with four PCI Express lanes.

Both the Rockchip RK3399Pro datasheet, version 1.1, [3] and the Rockchip
RK3399Pro technical reference manual (TRM), first part of the version 1.0, [4]
don't describe that the SoC's PCI Express interface is reserved for the NPU.
Instead, the RK3399Pro TRM describes that the NPU uses AHB and AXI interfaces
as the host interface (HIF).  The RK3399Pro datasheet clearly describes that
the PCI Express x4 interface is available for general-purpose use, just like
it's the case with the standard Rockchip RK3399 SoC, [5] albeit with a bit
shorter feature list provided in the RK3399Pro datasheet.

Even the publicly available reference RK3399Pro schematic from Rockchip [6]
shows the availability of a standard PCI Express slot with four lanes, which
would be pretty much impossible if the PCI Express interface was reserved
for the communication with the built-in NPU.

Based on the RK3399Pro datasheet [3] and the board schematics, [2][6] the
built-in NPU actually exports NPU_PCIE as a separate PCI Express x2 interface
that's partially pinmuxed with the NPU's separate USB 3.0 interface, which is
described further in the next paragraph.  However, the NPU's separate PCI
Express x2 interface is left undocumented in the publicly available RK3399Pro
documentation, in which it's clearly described as reserved for internal use
and not intended for the communication with the NPU.  Finally, the evidently
independent nature of the separate NPU_PCIE x2 interface makes ignoring it
safe when it comes to determining the nature and the availability of the
RK3399Pro's main PCI Express x4 interface.

The actual application-level communication with the built-in NPU, including
powering it up and down and uploading the NPU firmware, is performed through
the separate USB 2.0 and USB 3.0 interfaces exported by the NPU, [7] which
the VMARC SoM [2] and the reference board design from Rockchip [6] route to
the SoC's standard USB 2.0 and USB 3.0 interfaces, to make the NPU accessible
to software running on the SoC's ARM cores.

[1] https://dl.radxa.com/rockpin10/docs/hw/rockpi_n10_sch_v1.1_20190909.pdf
[2] https://dl.radxa.com/rockpin10/docs/hw/VMARC_RK3399Pro_sch_V1.1_20190619.pdf
[3] https://www.rockchip.fr/RK3399Pro%20datasheet%20V1.1.pdf
[4] https://www.rockchip.fr/Rockchip%20RK3399Pro%20TRM%20V1.0%20Part1.pdf
[5] https://www.rockchip.fr/RK3399%20datasheet%20V1.8.pdf
[6] https://opensource.rock-chips.com/images/e/e4/RK_EVB_RK3399PRO_LP3S178P332SD8_V11_20181113_RZF.pdf
[7] https://wiki.radxa.com/RockpiN10/dev/NPU-booting

Signed-off-by: Dragan Simic <dsimic@manjaro.org>
Link: https://lore.kernel.org/r/4449f7d4eead787308300e2d1d37b88c9d1446b2.1717308862.git.dsimic@manjaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-06-28 14:02:39 +02:00
Cristian Ciocaltea
ec03073888 arm64: dts: rockchip: Fix mic-in-differential usage on rk3568-evb1-v10
The 'mic-in-differential' DT property supported by the RK809/RK817 audio
codec driver is actually valid if prefixed with 'rockchip,':

  DTC_CHK arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dtb

  rk3568-evb1-v10.dtb: pmic@20: codec: 'mic-in-differential' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/mfd/rockchip,rk809.yaml#

Make use of the correct property name.

Fixes: 3e4c629ca6 ("arm64: dts: rockchip: enable rk809 audio codec on the rk3568 evb1-v10")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20240622-rk809-fixes-v2-5-c0db420d3639@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-06-28 14:02:39 +02:00
Cristian Ciocaltea
e643e4eb4b arm64: dts: rockchip: Fix mic-in-differential usage on rk3566-roc-pc
The 'mic-in-differential' DT property supported by the RK809/RK817 audio
codec driver is actually valid if prefixed with 'rockchip,':

  DTC_CHK arch/arm64/boot/dts/rockchip/rk3566-roc-pc.dtb
  rk3566-roc-pc.dtb: pmic@20: codec: 'mic-in-differential' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/mfd/rockchip,rk809.yaml#

Make use of the correct property name.

Fixes: a8e35c4beb ("arm64: dts: rockchip: add audio nodes to rk3566-roc-pc")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20240622-rk809-fixes-v2-4-c0db420d3639@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-06-28 14:02:39 +02:00
Cristian Ciocaltea
406a554b38 arm64: dts: rockchip: Drop invalid mic-in-differential on rk3568-rock-3a
The 'mic-in-differential' DT property supported by the RK809/RK817 audio
codec driver is actually valid if prefixed with 'rockchip,':

  DTC_CHK arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dtb
  rk3568-rock-3a.dtb: pmic@20: codec: 'mic-in-differential' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/mfd/rockchip,rk809.yaml#

However, the board doesn't make use of differential signaling, hence
drop the incorrect property and the now unnecessary 'codec' node.

Fixes: 22a442e658 ("arm64: dts: rockchip: add basic dts for the radxa rock3 model a")
Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20240622-rk809-fixes-v2-3-c0db420d3639@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-06-28 14:02:39 +02:00
Niklas Cassel
4065853475 arm64: dts: rockchip: Add rock5b overlays for PCIe endpoint mode
Add rock5b overlays for PCIe endpoint mode support.

If using the rock5b as an endpoint against a normal PC, only the
rk3588-rock-5b-pcie-ep.dtbo needs to be applied.

If using two rock5b:s, with one board as EP and the other board as RC,
rk3588-rock-5b-pcie-ep.dtbo and rk3588-rock-5b-pcie-srns.dtbo has to
be applied to the respective boards.

Signed-off-by: Niklas Cassel <cassel@kernel.org>
Link: https://lore.kernel.org/r/20240607-rockchip-pcie-ep-v1-v5-13-0a042d6b0049@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-06-28 14:02:38 +02:00
Niklas Cassel
7ef44e179a arm64: dts: rockchip: Add PCIe endpoint mode support
Add a device tree node representing PCIe endpoint mode.

The controller can either be configured to run in Root Complex or Endpoint
mode.

If a user wants to run the controller in endpoint mode, the user has to
disable the pcie3x4 node and enable the pcie3x4_ep node.

Signed-off-by: Niklas Cassel <cassel@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20240607-rockchip-pcie-ep-v1-v5-12-0a042d6b0049@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2024-06-28 14:02:38 +02:00
David S. Miller
109e2f5b98 Merge branch 'mlx5-fixes' into main
Tariq Toukan says:

====================
mlx5 fixes 2024-06-27

This patchset provides fixes from the team to the mlx5 core and EN
drivers.

The first 3 patches by Daniel replace a buggy cap field with a newly
introduced one.

Patch 4 by Chris de-couples ingress ACL creation from a specific flow,
so it's invoked by other flows if needed.

Patch 5 by Jianbo fixes a possible missing cleanup of QoS objects.

Patches 6 and 7 by Leon fixes IPsec stats logic to better reflect the
traffic.

Series generated against:
commit 02ea312055 ("octeontx2-pf: Fix coverity and klockwork issues in octeon PF driver")

V2:
Fixed wrong cited SHA in patch 6.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2024-06-28 12:58:12 +01:00
Leon Romanovsky
e562f2d46d net/mlx5e: Approximate IPsec per-SA payload data bytes count
ConnectX devices lack ability to count payload data byte size which is
needed for SA to return to libreswan for rekeying.

As a solution let's approximate that by decreasing headers size from
total size counted by flow steering. The calculation doesn't take into
account any other headers which can be in the packet (e.g. IP extensions).

Fixes: 5a6cddb89b ("net/mlx5e: Update IPsec per SA packets/bytes count")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-06-28 12:58:12 +01:00
Leon Romanovsky
2d9dac5559 net/mlx5e: Present succeeded IPsec SA bytes and packet
IPsec SA statistics presents successfully decrypted and encrypted
packet and bytes, and not total handled by this SA. So update the
calculation logic to take into account failures.

Fixes: 6fb7f94087 ("net/mlx5e: Connect mlx5 IPsec statistics with XFRM core")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-06-28 12:58:11 +01:00
Jianbo Liu
1da839eab6 net/mlx5e: Add mqprio_rl cleanup and free in mlx5e_priv_cleanup()
In the cited commit, mqprio_rl cleanup and free are mistakenly removed
in mlx5e_priv_cleanup(), and it causes the leakage of host memory and
firmware SCHEDULING_ELEMENT objects while changing eswitch mode. So,
add them back.

Fixes: 0bb7228f70 ("net/mlx5e: Fix mqprio_rl handling on devlink reload")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-06-28 12:58:11 +01:00
Chris Mi
b20c2fb454 net/mlx5: E-switch, Create ingress ACL when needed
Currently, ingress acl is used for three features. It is created only
when vport metadata match and prio tag are enabled. But active-backup
lag mode also uses it. It is independent of vport metadata match and
prio tag. And vport metadata match can be disabled using the
following devlink command:

 # devlink dev param set pci/0000:08:00.0 name esw_port_metadata \
	value false cmode runtime

If ingress acl is not created, will hit panic when creating drop rule
for active-backup lag mode. If always create it, there will be about
5% performance degradation.

Fix it by creating ingress acl when needed. If esw_port_metadata is
true, ingress acl exists, then create drop rule using existing
ingress acl. If esw_port_metadata is false, create ingress acl and
then create drop rule.

Fixes: 1749c4c51c ("net/mlx5: E-switch, add drop rule support to ingress ACL")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-06-28 12:58:11 +01:00