Detect if the system has the new HCRX_EL2 register added in ARMv8.7/9.2,
so that subsequent patches can check for its presence.
KVM currently relies on the register being present on all CPUs (or
none), so the kernel will panic if that is not the case. Fortunately no
such systems currently exist, but this can be revisited if they appear.
Note that the kernel will not panic if CONFIG_KVM is disabled.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>
Link: https://lore.kernel.org/r/20230509142235.3284028-3-kristina.martsenko@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
ARMv8.7/9.2 adds a new hypervisor configuration register HCRX_EL2.
Initialize the register to a safe value (all fields 0), to be robust
against firmware that has not initialized it. This is also needed to
ensure that the register is reinitialized after a kexec by a future
kernel.
In addition, move SMPME setup over to the new flags, as it would
otherwise get overridden. It is safe to set the bit even if SME is not
(uniformly) supported, as it will write to a RES0 bit (having no
effect), and SME will be disabled by the cpufeature framework.
(Similar to how e.g. the API bit is handled in HCR_HOST_NVHE_FLAGS.)
Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20230509142235.3284028-2-kristina.martsenko@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Apparently desktop gen3 parts don't support the
10bit gamma mode at all. Stop claiming otherwise.
As is the case with pipe A on gen3 mobile parts, the
PIPECONF gamma mode bit can be set but it has no
effect on the output.
PNV seems to be the only slight exception, but generally
the desktop PNV variant looks more like a mobile part so
this is not entirely surprising.
Fixes: 67630bacae ("drm/i915: Add 10bit gamma mode for gen2/3")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531135625.3467-1-ville.syrjala@linux.intel.com
SM6375 has a "Qualcomm SMMU V2" implementation for its GPU SMMU. It
does not however qualify for the qcom,adreno-smmu compatible, as it can
not do split pagetables. It consumes a single clock and a single genpd.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230531-topic-sm6375_gpusmmu-v1-1-860943894c71@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
Several device tree files get the polarity of the pendown-gpios
wrong: this signal is active low. Fix up all incorrect flags, so
that operating systems can rely on the flag being correctly set.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230510105156.1134320-1-linus.walleij@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
It contains:
- fix imbalanced reference counter for ethernet devices; without it
system hangs after consecutive suspend/resume cycles;
- fix debounce delay property for shutdown controller; the initial DT
property is not what the driver expects.
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Merge tag 'at91-fixes-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/fixes
AT91 fixes for 6.4
It contains:
- fix imbalanced reference counter for ethernet devices; without it
system hangs after consecutive suspend/resume cycles;
- fix debounce delay property for shutdown controller; the initial DT
property is not what the driver expects.
* tag 'at91-fixes-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
ARM: dts: at91: sama7g5ek: fix debounce delay property for shdwc
ARM: at91: pm: fix imbalanced reference counter for ethernet devices
Link: https://lore.kernel.org/r/20230530105930.11621-1-claudiu.beznea@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Register scheme for SM8550 LLCC is corrected to avoid using the wrong
register offsets. SDRAM frequency for misidentified SC7180-lite boards
is handled. The datatype for Soundwire interval on SM8550 is corrected.
The resource controller on SC8280XP is added to the CPU cluster
power-domain to get notified to send cached sleep and wake votes before
going entering the lower power states.
SA8155P power-domains that differ from what's inherited from the SM8150
DeviceTree are adjusted to make the platform boot again.
Remoteproc firmware paths are corrected for Sony Xperia 10 IV.
Cache properties are adjusted across a range of platforms, to meet
changes in the binding.
Panel compatibles are corrected for Xiaomi Mi Pad 5 Pro, to match
binding. Invalid dai-cells are dropped from SC7280 devices, to match
binding.
The incorrect removal of "input-enable" from the LPASS pinctrl node of
SC8280XP was reverted, to get dmic pins in the correct state again.
The incorrect input-enable property is dropped from a msm8974, mdm9615
and apq8026 to resolve a range of DT validation warnings, incorrectly
picked up through the ARM64 tree.
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Merge tag 'qcom-arm64-fixes-for-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes
Qualcomm ARM64 DeviceTree fixes for 6.4
Register scheme for SM8550 LLCC is corrected to avoid using the wrong
register offsets. SDRAM frequency for misidentified SC7180-lite boards
is handled. The datatype for Soundwire interval on SM8550 is corrected.
The resource controller on SC8280XP is added to the CPU cluster
power-domain to get notified to send cached sleep and wake votes before
going entering the lower power states.
SA8155P power-domains that differ from what's inherited from the SM8150
DeviceTree are adjusted to make the platform boot again.
Remoteproc firmware paths are corrected for Sony Xperia 10 IV.
Cache properties are adjusted across a range of platforms, to meet
changes in the binding.
Panel compatibles are corrected for Xiaomi Mi Pad 5 Pro, to match
binding. Invalid dai-cells are dropped from SC7280 devices, to match
binding.
The incorrect removal of "input-enable" from the LPASS pinctrl node of
SC8280XP was reverted, to get dmic pins in the correct state again.
The incorrect input-enable property is dropped from a msm8974, mdm9615
and apq8026 to resolve a range of DT validation warnings, incorrectly
picked up through the ARM64 tree.
* tag 'qcom-arm64-fixes-for-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
arm64: dts: qcom: sm8550: Use the correct LLCC register scheme
arm64: dts: qcom: sc7180-lite: Fix SDRAM freq for misidentified sc7180-lite boards
arm64: dts: qcom: sm8550: use uint16 for Soundwire interval
arm64: dts: qcom: Split out SA8155P and use correct RPMh power domains
arm64: dts: qcom: sm6375-pdx225: Fix remoteproc firmware paths
arm64: dts: qcom: add missing cache properties
arm64: dts: qcom: use decimal for cache level
arm64: dts: qcom: fix indentation
ARM: dts: qcom: msm8974: remove superfluous "input-enable"
ARM: dts: qcom: mdm9615: remove superfluous "input-enable"
ARM: dts: qcom: apq8026: remove superfluous "input-enable"
arm64: dts: qcom: sm8250-xiaomi-elish-csot: fix panel compatible
arm64: dts: qcom: sm8250-xiaomi-elish-boe: fix panel compatible
arm64: dts: qcom: sc7280-qcard: drop incorrect dai-cells from WCD938x SDW
arm64: dts: qcom: sc7280-idp: drop incorrect dai-cells from WCD938x SDW
arm64: dts: qcom: sc8280xp: Flush RSC sleep & wake votes
arm64: dts: qcom: sc8280xp: Revert "arm64: dts: qcom: sc8280xp: remove superfluous "input-enable""
Link: https://lore.kernel.org/r/20230601142659.2246348-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The GPU SMMU will require the clocks property to be set so put the
relevant compatible into the adreno if-then block.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230417125844.400782-5-brgl@bgdev.pl
[will: Fixed conflict with 'qcom,sc8280xp-smmu-500' entry]
Signed-off-by: Will Deacon <will@kernel.org>
Error paths is corrected across icc-bwmon, rpmh-rsc, ramp_controller and
rmtfs. The ice module is renamed qcom_ice, to avoid clashing with
existing "ice" driver.
SA8155P-specific RPMh power-domains are introduced to avoid the code
trying to access resources that exists on SM8150, but not on SA8155P.
Lastly, changes to the EDAC driver to fix an issue where the driver
performs mmio based on the wrong register map.
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Merge tag 'qcom-driver-fixes-for-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes
Qualcomm driver fixes for 6.4
Error paths is corrected across icc-bwmon, rpmh-rsc, ramp_controller and
rmtfs. The ice module is renamed qcom_ice, to avoid clashing with
existing "ice" driver.
SA8155P-specific RPMh power-domains are introduced to avoid the code
trying to access resources that exists on SM8150, but not on SA8155P.
Lastly, changes to the EDAC driver to fix an issue where the driver
performs mmio based on the wrong register map.
* tag 'qcom-driver-fixes-for-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
EDAC/qcom: Get rid of hardcoded register offsets
EDAC/qcom: Remove superfluous return variable assignment in qcom_llcc_core_setup()
dt-bindings: cache: qcom,llcc: Fix SM8550 description
soc: qcom: rpmhpd: Add SA8155P power domains
dt-bindings: power: qcom,rpmpd: Add SA8155P
soc: qcom: Rename ice to qcom_ice to avoid module name conflict
soc: qcom: rmtfs: Fix error code in probe()
soc: qcom: ramp_controller: Fix an error handling path in qcom_ramp_controller_probe()
soc: qcom: rpmh-rsc: drop redundant unsigned >=0 comparision
soc: qcom: icc-bwmon: fix incorrect error code passed to dev_err_probe()
Link: https://lore.kernel.org/r/20230601141058.2246039-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A range of 32-bit Qualcomm platforms are missing cache-unified, which is
now required by the binding, this is now corrected.
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Merge tag 'qcom-dts-fixes-for-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes
Qualcomm ARM32 fix for 6.4
A range of 32-bit Qualcomm platforms are missing cache-unified, which is
now required by the binding, this is now corrected.
* tag 'qcom-dts-fixes-for-6.4' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
ARM: dts: qcom: add missing cache properties
Link: https://lore.kernel.org/r/20230601140347.2245680-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Here is a small fix to make an unconditional copy of the buffer passed
to crypto operations, to take into account the case of the stack not in
the linear mapping area.
It has been tested and verified to fix the bug.
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
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Merge tag 'asym-keys-fix-for-linus-v6.4-rc5' of https://github.com/robertosassu/linux
Pull asymmetric keys fix from Roberto Sassu:
"Here is a small fix to make an unconditional copy of the buffer passed
to crypto operations, to take into account the case of the stack not
in the linear mapping area.
It has been tested and verified to fix the bug"
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: David Howells <dhowells@redhat.com>
* tag 'asym-keys-fix-for-linus-v6.4-rc5' of https://github.com/robertosassu/linux:
KEYS: asymmetric: Copy sig and digest in public_key_verify_signature()
The qcom,sc8280xp-smmu-500 Adreno SMMU binding has clocks, so fix up the
binding to allow this.
Fixes: 38db6b41b2 ("dt-bindings: arm-smmu: Add compatible for Qualcomm SC8280XP")
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230523010441.63236-1-quic_bjorande@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>
Notice that all of the objects for which the acpi_scan_check_dep()
return value is greater than 0 are present in acpi_dep_list as consumers
(there may be multiple entries for one object, but that is not a
problem), so after carrying out the initial ACPI namespace walk in which
devices with dependencies are skipped, acpi_bus_scan() can simply walk
acpi_dep_list and enumerate all of the unique consumer objects from
there and their descendants instead of walking the entire target branch
of the ACPI namespace and looking for device objects that have not been
enumerated yet in it.
Because walking acpi_dep_list is generally less overhead than walking
the entire ACPI namespace, use the observation above to reduce the
system initialization overhead related to ACPI, which is particularly
important on large systems.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
When add_dquot_ref() fails (usually due to IO error or ENOMEM), we want
to disable quotas we are trying to enable. However dquot_disable() call
was passed just the flags we are enabling so in case flags ==
DQUOT_USAGE_ENABLED dquot_disable() call will just fail with EINVAL
instead of properly disabling quotas. Fix the problem by always passing
DQUOT_LIMITS_ENABLED | DQUOT_USAGE_ENABLED to dquot_disable() in this
case.
Reported-and-tested-by: Ye Bin <yebin10@huawei.com>
Reported-by: syzbot+e633c79ceaecbf479854@syzkaller.appspotmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <20230605140731.2427629-2-yebin10@huawei.com>
Currently the read event packet size in snd_seq_read() is defined by
client->midi_version value that is guaranteed to be zero if UMP isn't
enabled. But the static analyzer doesn't know of the fact, and it
still suspects as if it were leading to a potential overflow.
Add the more explicit check of CONFIG_SND_SEQ_UMP to determine the
aligned_size value for avoiding the confusion.
Fixes: 46397622a3 ("ALSA: seq: Add UMP support")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202305261415.NY0vapZK-lkp@intel.com/
Link: https://lore.kernel.org/r/20230605144758.6677-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The CTI module has some hard coded refcounting code that has a leak.
For example running perf and then trying to unload it fails:
perf record -e cs_etm// -a -- ls
rmmod coresight_cti
rmmod: ERROR: Module coresight_cti is in use
The coresight core already handles references of devices in use, so by
making CTI a normal helper device, we get working refcounting for free.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-14-james.clark@arm.com
Currently CATU is the only helper device, and its enable and disable
calls are hard coded. To allow more helper devices to be added in a
generic way, remove these hard coded calls and just enable and disable
all helper devices.
This has to apply to helpers adjacent to the path, because they will
never be in the path. CATU was already discovered in this way, so
there is no change there.
One change that is needed is for CATU to call back into ETR to allocate
the buffer. Because the enable call was previously hard coded, it was
done at a point where the buffer was already allocated, but this is no
longer the case.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-13-james.clark@arm.com
When CATU is moved to the generic enable/disable path system in the
next commit, it will need to call into ETR and get it to pre-allocate
its buffer so add a function for it.
No functional changes
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-12-james.clark@arm.com
This removes the need to do an additional lookup for the total number
of ports used and also removes the need to allocate an array of
refcounts which is just another representation of a connection array.
This was only used for link type devices, for regular devices a single
refcount on the coresight device is used.
There is a both an input and output refcount in case two link type
devices are connected together so that they don't overwrite each other's
counts.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-11-james.clark@arm.com
This will allow CATU to get its associated ETR in a generic way where
currently the enable path has some hard coded searches which avoid
the need to store input connections.
This also means that the full search for connected devices on removal
can be replaced with a loop through only the input and output devices.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-10-james.clark@arm.com
There is some duplication between coresight_fixup_device_conns() and
coresight_fixup_orphan_conns(). They both do the same thing except for
the fact that coresight_fixup_orphan_conns() can't handle iterating over
itself.
By making it able to handle fixing up it's own connections the other
function can be removed.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-9-james.clark@arm.com
This will allow the same connection object to be referenced via the
input connection list in a later commit rather than duplicating them.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-8-james.clark@arm.com
Add a function for adding connections dynamically. This also removes
the 1:1 mapping between port number and the index into the connections
array. The only place this mapping was used was in the warning for
duplicate output ports, which has been replaced by a search. Other
uses of the port number already use the port member variable.
Being able to dynamically add connections will allow other devices like
CTI to re-use the connection mechanism despite not having explicit
connections described in the DT.
The connections array is now no longer sparse, so child_fwnode doesn't
need to be checked as all connections have a target node. Because the
array is no longer sparse, the high in and out port numbers are required
for the refcount arrays. But these will also be removed in a later
commit when the refcount is made a property of the connection.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-7-james.clark@arm.com
When input connections are added they will use the same connection
object as the output so parent and child could be misinterpreted. Making
the direction unambiguous in the names should improve readability.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-6-james.clark@arm.com
Rename to avoid confusion between port number and the index in the
connection array. The port number is already stored in the connection,
and in a later commit the connection array will be appended to, so
the length of it will no longer reflect the number of ports.
No functional changes.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-5-james.clark@arm.com
conns is actually for output connections. Change the name to make it
clearer and so that we can add input connections later.
No functional changes.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-4-james.clark@arm.com
mode is stored as a local_t, but it is also passed around a lot as a
plain u32, so use the correct type wherever local_t isn't currently
used. This helps a little bit with readability.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-3-james.clark@arm.com
child_fwnode should be a read only property based on the DT or ACPI. If
it's cleared on the parent device when a child is unloaded, then when
the child is loaded again the connection won't be remade.
child_dev should be cleared instead which signifies that the connection
should be remade when the child_fwnode registers a new coresight_device.
Similarly the reference count shouldn't be decremented as long as the
parent device exists. The correct place to drop the reference is in
coresight_release_platform_data() which is already done.
Reproducible on Juno with the following steps:
# load all coresight modules.
$ cd /sys/bus/coresight/devices/
$ echo 1 > tmc_etr0/enable_sink
$ echo 1 > etm0/enable_source
# Works fine ^
$ echo 0 > etm0/enable_source
$ rmmod coresight-funnel
$ modprobe coresight-funnel
$ echo 1 > etm0/enable_source
-bash: echo: write error: Invalid argument
Fixes: 37ea1ffddf ("coresight: Use fwnode handle instead of device names")
Fixes: 2af89ebacf ("coresight: Clear the connection field properly")
Tested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230425143542.2305069-2-james.clark@arm.com
In order to print the numerical entries of the syscall table,
there is no need to call the host compiler to build and then
run a program, this can be done directly by the shell script.
This is similar with commit 9854e7ad35 ("perf arm64: Simplify
mksyscalltbl"). For now, the mksyscalltbl file of LoongArch is
almost same with arm64.
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: loongarch@lists.linux.dev
Link: https://lore.kernel.org/r/1685441401-8709-6-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Like x86, powerpc, mips and s390, use max_nr which is a digital
number to define SYSCALLTBL_ARM64_MAX_ID.
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: loongarch@lists.linux.dev
Link: https://lore.kernel.org/r/1685441401-8709-5-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Sidharth reports that on M2, the PMU never generates any interrupt
when using 'perf record', which is a annoying as you get no sample.
I'm temped to say "no sample, no problem", but others may have
a different opinion.
Upon investigation, it appears that the counters on M2 are
significantly different from the ones on M1, as they count on
64 bits instead of 48. Which of course, in the fine M1 tradition,
means that we can only use 63 bits, as the top bit is used to signal
the interrupt...
This results in having to introduce yet another flag to indicate yet
another odd counter width. Who knows what the next crazy implementation
will do...
With this, perf can work out the correct offset, and 'perf record'
works as intended.
Tested on M2 and M2-Pro CPUs.
Cc: Janne Grunau <j@jannau.net>
Cc: Hector Martin <marcan@marcan.st>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Fixes: 7d0bfb7c99 ("drivers/perf: apple_m1: Add Apple M2 support")
Reported-by: Sidharth Kshatriya <sid.kshatriya@gmail.com>
Tested-by: Sidharth Kshatriya <sid.kshatriya@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230528080205.288446-1-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
After commit 9854e7ad35 ("perf arm64: Simplify mksyscalltbl"),
in the generated syscall table file syscalls.c, there exist some
__NR3264_ prefixed syscall numbers such as [__NR3264_ftruncate],
it looks like not so good, just do some small filter operations
to handle __NR3264_ prefixed syscall number as a digital number.
Without this patch:
[__NR3264_ftruncate] = "ftruncate",
With this patch:
[46] = "ftruncate",
Suggested-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: loongarch@lists.linux.dev
Link: https://lore.kernel.org/r/1685441401-8709-4-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
After commit 9854e7ad35 ("perf arm64: Simplify mksyscalltbl") it
has been removed the temporary C program and used shell to generate
syscall table, so let us rename create_table_from_c() to
create_sc_table() to avoid confusion.
Suggested-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: loongarch@lists.linux.dev
Link: https://lore.kernel.org/r/1685441401-8709-3-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
syscalltbl_*[] should never be changing, let us declare it as const.
Suggested-by: Ian Rogers <irogers@google.com>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: loongarch@lists.linux.dev
Link: https://lore.kernel.org/r/1685441401-8709-2-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It turns out that my naive DTC reset logic fails to work as intended,
since, after checking with the hardware designers, the PMU actually
needs to be fully enabled in order to correctly clear any pending
overflows. Therefore, invert the sequence to start with turning on both
enables so that we can reliably get the DTCs into a known state, then
moving to our normal counters-stopped state from there. Since all the
DTM counters have already been unpaired during the initial discovery
pass, we just need to additionally reset the cycle counters to ensure
that no other unexpected overflows occur during this period.
Fixes: 0ba64770a2 ("perf: Add Arm CMN-600 PMU driver")
Reported-by: Geoff Blake <blakgeof@amazon.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/0ea4559261ea394f827c9aee5168c77a60aaee03.1684946389.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
In cs_dsp_load_coeff() region_name should be set in the XM/YM/ZM
cases otherwise any errors will log the region as "Unknown".
While doing this also change one error message that logged the
region type ID to log the region_name instead. This makes it
consistent with other messages in the same function.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230605143238.4001982-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Mat Martineau says:
====================
mptcp: Fixes for address advertisement
Patches 1 and 2 allow address advertisements to be removed without
affecting current connected subflows, and updates associated self tests.
Patches 3 and 4 correctly track (and allow removal of) addresses that
were implicitly announced as part of subflow creation. Also updates
associated self tests.
Patch 5 makes subflow and address announcement counters work consistently
between the userspace and in-kernel path managers.
====================
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Increase pm subflows counter on both server side and client side when
userspace pm creates a new subflow, and decrease the counter when it
closes a subflow.
Increase add_addr_signaled counter in mptcp_nl_cmd_announce() when the
address is announced by userspace PM.
This modification is similar to how the in-kernel PM is updating the
counter: when additional subflows are created/removed.
Fixes: 9ab4807c84 ("mptcp: netlink: Add MPTCP_PM_CMD_ANNOUNCE")
Fixes: 702c2f646d ("mptcp: netlink: allow userspace-driven subflow establishment")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/329
Cc: stable@vger.kernel.org
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
To align with what is done by the in-kernel PM, update userspace pm
subflow selftests, by sending the a remove_addrs command together
before the remove_subflows command. This will get a RM_ADDR in
chk_rm_nr().
Fixes: d9a4594eda ("mptcp: netlink: Add MPTCP_PM_CMD_REMOVE")
Fixes: 5e986ec468 ("selftests: mptcp: userspace pm subflow tests")
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/379
Cc: stable@vger.kernel.org
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the address into userspace_pm_local_addr_list when the subflow is
created. Make sure it can be found in mptcp_nl_cmd_remove(). And delete
it in the new helper mptcp_userspace_pm_delete_local_addr().
By doing this, the "REMOVE" command also works with subflows that have
been created via the "SUB_CREATE" command instead of restricting to
the addresses that have been announced via the "ANNOUNCE" command.
Fixes: d9a4594eda ("mptcp: netlink: Add MPTCP_PM_CMD_REMOVE")
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/379
Cc: stable@vger.kernel.org
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch is linked to the previous commit ("mptcp: only send RM_ADDR in
nl_cmd_remove").
To align with what is done by the in-kernel PM, update userspace pm addr
selftests, by sending a remove_subflows command together after the
remove_addrs command.
Fixes: d9a4594eda ("mptcp: netlink: Add MPTCP_PM_CMD_REMOVE")
Fixes: 97040cf980 ("selftests: mptcp: userspace pm address tests")
Cc: stable@vger.kernel.org
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The specifications from [1] about the "REMOVE" command say:
Announce that an address has been lost to the peer
It was then only supposed to send a RM_ADDR and not trying to delete
associated subflows.
A new helper mptcp_pm_remove_addrs() is then introduced to do just
that, compared to mptcp_pm_remove_addrs_and_subflows() also removing
subflows.
To delete a subflow, the userspace daemon can use the "SUB_DESTROY"
command, see mptcp_nl_cmd_sf_destroy().
Fixes: d9a4594eda ("mptcp: netlink: Add MPTCP_PM_CMD_REMOVE")
Link: https://github.com/multipath-tcp/mptcp/blob/mptcp_v0.96/include/uapi/linux/mptcp.h [1]
Cc: stable@vger.kernel.org
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If an error occurs after calling list_add(), the &l2cache_pmu->clusters
list will reference some memory that will be freed when the managed
resources will be released.
Move the list_add() at the end of the function when everything is in fine.
This is harmless because if l2_cache_pmu_probe_cluster() fails, then
l2_cache_pmu_probe() will fail as well and 'l2cache_pmu' will be released
as well.
But it looks cleaner and could silence static checker warning.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/6a0f5bdb6b7b2ed4ef194fc49693e902ad5b95ea.1684397879.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Will Deacon <will@kernel.org>
With the previous fix, these modules are built from a single C file.
Rename the source files so they match the module names.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230605120021.1774711-2-masahiroy@kernel.org
