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1,309,163 commits

Author SHA1 Message Date
Krzysztof Kozlowski
b3f1e8e32e
regulator: da9121: Constify static data
Driver does not modify static data with regulator description (struct
da9121_range), so make it const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240909-regulator-const-v1-4-8934704a5787@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:44:06 +01:00
Krzysztof Kozlowski
0601c1e5c4
regulator: da9063: Constify static data
Driver does not modify static data with device variant description
(struct da9063_dev_model), so make it const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240909-regulator-const-v1-3-8934704a5787@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:44:05 +01:00
Krzysztof Kozlowski
dfa9e708c6
regulator: da9055: Constify static data
Driver does not modify static data with regulators description (struct
da9055_regulator_info), so make it const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240909-regulator-const-v1-2-8934704a5787@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:44:04 +01:00
Krzysztof Kozlowski
9653007e7d
regulator: da9052: Constify static data
Driver does not modify static data with regulators description (struct
da9052_regulator_info), so make it const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20240909-regulator-const-v1-1-8934704a5787@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:44:03 +01:00
Yang Yingliang
740c1c84bf
spi: remove spi_controller_is_slave() and spi_slave_abort()
spi_controller_is_slave() and spi_slave_abort() are all replaced,
so they can be removed.

No functional changed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://patch.msgid.link/20240910022618.1397-8-yangyingliang@huaweicloud.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:41:42 +01:00
Yang Yingliang
5b2e4d1515
platform/olpc: olpc-xo175-ec: switch to use spi_target_abort().
Switch to use modern name function spi_target_abort().

No functional changed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20240910022618.1397-7-yangyingliang@huaweicloud.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:41:41 +01:00
Yang Yingliang
be03763d24
spi: slave-mt27xx: switch to use target_abort
Switch to use modern name target_abort.

No functional changed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://patch.msgid.link/20240910022618.1397-6-yangyingliang@huaweicloud.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:41:40 +01:00
Yang Yingliang
94628e5a07
spi: spidev: switch to use spi_target_abort()
Switch to use modern name function spi_target_abort().

No functional changed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://patch.msgid.link/20240910022618.1397-5-yangyingliang@huaweicloud.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:41:39 +01:00
Yang Yingliang
f4bf5454f8
spi: slave-system-control: switch to use spi_target_abort()
Switch to use modern name function spi_target_abort().

No functional changed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://patch.msgid.link/20240910022618.1397-4-yangyingliang@huaweicloud.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:41:38 +01:00
Yang Yingliang
6adfdf0780
spi: slave-time: switch to use spi_target_abort()
Switch to use modern name function spi_target_abort().

No functional changed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://patch.msgid.link/20240910022618.1397-3-yangyingliang@huaweicloud.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:41:37 +01:00
Yang Yingliang
1e0cc8d0a1
spi: switch to use spi_controller_is_target()
Switch to use modern name function spi_controller_is_target().

No functional changed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://patch.msgid.link/20240910022618.1397-2-yangyingliang@huaweicloud.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:41:36 +01:00
Yu Jiaoliang
886fee3525
regulator: Fix typos in the comment
Fixed some confusing typographical errors:
comptabile->compatible,
asignment->assignment,
Verison->Version,
meansurement->measurement,
offets->offsets.

Signed-off-by: Yu Jiaoliang <yujiaoliang@vivo.com>
Link: https://patch.msgid.link/20240910064631.3223441-1-yujiaoliang@vivo.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:40:38 +01:00
Tang Bin
5e6f78cb5f
ASoC: loongson: Add the correct judgement return
Use the function dev_err_probe can simplify code, but
the error return should not be deleted, that is
unreasonable, thus fix it.

Fixes: 3d2528d6c0 ("ASoC: loongson: Simplify with dev_err_probe()")
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Link: https://patch.msgid.link/20240910021104.3400-1-tangbin@cmss.chinamobile.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:40:25 +01:00
Tang Bin
86a7f453e9
ASoC: soc-ac97: Fix the incorrect description
In the function snd_soc_alloc_ac97_component &
snd_soc_new_ac97_component, the error return is
ERR_PTR, so fix the incorrect description.

Fixes: 47e039413c ("ASoC: Add support for allocating AC'97 device before registering it")
Fixes: 7361fbeaea ("ASoC: ac97: Add support for resetting device before registration")
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Link: https://patch.msgid.link/20240910013303.2044-1-tangbin@cmss.chinamobile.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-09-10 12:40:24 +01:00
Takashi Iwai
5ced8b914e ALSA: memalloc: Move snd_malloc_ops definition into memalloc.c again
The definition of struct snd_malloc_ops was moved out to
memalloc_local.h since there was another code for S/G buffer
allocation referring to the struct.  But since the code change to use
non-contiguous allocators, it's solely referred in memalloc.c, hence
it makes little sense to have a separate header file.

Let's move it back to memalloc.c.

Link: https://patch.msgid.link/20240910113141.32618-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-09-10 13:32:36 +02:00
Jacky Chou
fef2843bb4 net: ftgmac100: Enable TX interrupt to avoid TX timeout
Currently, the driver only enables RX interrupt to handle RX
packets and TX resources. Sometimes there is not RX traffic,
so the TX resource needs to wait for RX interrupt to free.
This situation will toggle the TX timeout watchdog when the MAC
TX ring has no more resources to transmit packets.
Therefore, enable TX interrupt to release TX resources at any time.

When I am verifying iperf3 over UDP, the network hangs.
Like the log below.

root# iperf3 -c 192.168.100.100 -i1 -t10 -u -b0
Connecting to host 192.168.100.100, port 5201
[  4] local 192.168.100.101 port 35773 connected to 192.168.100.100 port 5201
[ ID] Interval           Transfer     Bandwidth       Total Datagrams
[  4]   0.00-20.42  sec   160 KBytes  64.2 Kbits/sec  20
[  4]  20.42-20.42  sec  0.00 Bytes  0.00 bits/sec  0
[  4]  20.42-20.42  sec  0.00 Bytes  0.00 bits/sec  0
[  4]  20.42-20.42  sec  0.00 Bytes  0.00 bits/sec  0
[  4]  20.42-20.42  sec  0.00 Bytes  0.00 bits/sec  0
[  4]  20.42-20.42  sec  0.00 Bytes  0.00 bits/sec  0
[  4]  20.42-20.42  sec  0.00 Bytes  0.00 bits/sec  0
[  4]  20.42-20.42  sec  0.00 Bytes  0.00 bits/sec  0
[  4]  20.42-20.42  sec  0.00 Bytes  0.00 bits/sec  0
[  4]  20.42-20.42  sec  0.00 Bytes  0.00 bits/sec  0
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval          Transfer    Bandwidth      Jitter   Lost/Total Datagrams
[  4]   0.00-20.42  sec  160 KBytes 64.2 Kbits/sec 0.000 ms 0/20 (0%)
[  4] Sent 20 datagrams
iperf3: error - the server has terminated

The network topology is FTGMAC connects directly to a PC.
UDP does not need to wait for ACK, unlike TCP.
Therefore, FTGMAC needs to enable TX interrupt to release TX resources instead
of waiting for the RX interrupt.

Fixes: 10cbd64076 ("ftgmac100: Rework NAPI & interrupts handling")
Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com>
Link: https://patch.msgid.link/20240906062831.2243399-1-jacky_chou@aspeedtech.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-09-10 12:50:07 +02:00
Ingo Molnar
5e645f3113 Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2024-09-10 12:28:05 +02:00
Alexander Dahl
525034e2e2 net: mdiobus: Debug print fwnode handle instead of raw pointer
Was slightly misleading before, because printed is pointer to fwnode,
not to phy device, as placement in message suggested.  Include header
for dev_dbg() declaration while at it.

Output before:

    [  +0.001247] mdio_bus f802c000.ethernet-ffffffff: registered phy 2612f00a fwnode at address 3

Output after:

    [  +0.001229] mdio_bus f802c000.ethernet-ffffffff: registered phy fwnode /ahb/apb/ethernet@f802c000/ethernet-phy@3 at address 3

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Link: https://patch.msgid.link/20240906062256.11289-1-ada@thorsis.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-09-10 12:24:17 +02:00
Ben Skeggs
6db9df4f70 drm/nouveau/fb: restore init() for ramgp102
init() was removed from ramgp102 when reworking the memory detection, as
it was thought that the code was only necessary when the driver performs
mclk changes, which nouveau doesn't support on pascal.

However, it turns out that we still need to execute this on some GPUs to
restore settings after DEVINIT, so revert to the original behaviour.

v2: fix tags in commit message, cc stable

Closes: https://gitlab.freedesktop.org/drm/nouveau/-/issues/319
Fixes: 2c0c15a22f ("drm/nouveau/fb/gp102-ga100: switch to simpler vram size detection method")
Cc: stable@vger.kernel.org # 6.6+
Signed-off-by: Ben Skeggs <bskeggs@nvidia.com>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240904232418.8590-1-bskeggs@nvidia.com
2024-09-10 12:22:48 +02:00
Naveen Mamindlapalli
019aba04f0 octeontx2-af: Modify SMQ flush sequence to drop packets
The current implementation of SMQ flush sequence waits for the packets
in the TM pipeline to be transmitted out of the link. This sequence
doesn't succeed in HW when there is any issue with link such as lack of
link credits, link down or any other traffic that is fully occupying the
link bandwidth (QoS). This patch modifies the SMQ flush sequence to
drop the packets after TL1 level (SQM) instead of polling for the packets
to be sent out of RPM/CGX link.

Fixes: 5d9b976d44 ("octeontx2-af: Support fixed transmit scheduler topology")
Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com>
Reviewed-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Link: https://patch.msgid.link/20240906045838.1620308-1-naveenm@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-09-10 12:16:13 +02:00
D. Wythe
f8406a2fd2 net/smc: add sysctl for smc_limit_hs
In commit 48b6190a00 ("net/smc: Limit SMC visits when handshake workqueue congested"),
we introduce a mechanism to put constraint on SMC connections visit
according to the pressure of SMC handshake process.

At that time, we believed that controlling the feature through netlink
was sufficient. However, most people have realized now that netlink is
not convenient in container scenarios, and sysctl is a more suitable
approach.

In addition, since commit 462791bbfa ("net/smc: add sysctl interface for SMC")
had introcuded smc_sysctl_net_init(), it is reasonable for us to
initialize limit_smc_hs in it instead of initializing it in
smc_pnet_net_int().

Signed-off-by: D. Wythe <alibuda@linux.alibaba.com>
Reviewed-by: Wen Gu <guwen@linux.alibaba.com>
Reviewed-by: Jan Karcher <jaka@linux.ibm.com>
Link: https://patch.msgid.link/1725590135-5631-1-git-send-email-alibuda@linux.alibaba.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-09-10 12:11:04 +02:00
Waiman Long
d00b83d416 locking/rwsem: Move is_rwsem_reader_owned() and rwsem_owner() under CONFIG_DEBUG_RWSEMS
Both is_rwsem_reader_owned() and rwsem_owner() are currently only used when
CONFIG_DEBUG_RWSEMS is defined. This causes a compilation error with clang
when `make W=1` and CONFIG_WERROR=y:

kernel/locking/rwsem.c:187:20: error: unused function 'is_rwsem_reader_owned' [-Werror,-Wunused-function]
  187 | static inline bool is_rwsem_reader_owned(struct rw_semaphore *sem)
      |                    ^~~~~~~~~~~~~~~~~~~~~
kernel/locking/rwsem.c:271:35: error: unused function 'rwsem_owner' [-Werror,-Wunused-function]
  271 | static inline struct task_struct *rwsem_owner(struct rw_semaphore *sem)
      |                                   ^~~~~~~~~~~

Fix this by moving these two functions under the CONFIG_DEBUG_RWSEMS define.

Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240909182905.161156-1-longman@redhat.com
2024-09-10 12:02:33 +02:00
Kan Liang
ef493f4b12 perf/x86/intel: Allow to setup LBR for counting event for BPF
The BPF subsystem may capture LBR data on a counting event. However, the
current implementation assumes that LBR can/should only be used with
sampling events.

For instance, retsnoop tool ([0]) makes an extensive use of this
functionality and sets up perf event as follows:

	struct perf_event_attr attr;

	memset(&attr, 0, sizeof(attr));
	attr.size = sizeof(attr);
	attr.type = PERF_TYPE_HARDWARE;
	attr.config = PERF_COUNT_HW_CPU_CYCLES;
	attr.sample_type = PERF_SAMPLE_BRANCH_STACK;
	attr.branch_sample_type = PERF_SAMPLE_BRANCH_KERNEL;

To limit the LBR for a sampling event is to avoid unnecessary branch
stack setup for a counting event in the sample read. Because LBR is only
read in the sampling event's overflow.

Although in most cases LBR is used in sampling, there is no HW limit to
bind LBR to the sampling mode. Allow an LBR setup for a counting event
unless in the sample read mode.

Fixes: 85846b2707 ("perf/x86: Add PERF_X86_EVENT_NEEDS_BRANCH_STACK flag")
Closes: https://lore.kernel.org/lkml/20240905180055.1221620-1-andrii@kernel.org/
Reported-by: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Andrii Nakryiko <andrii@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240909155848.326640-1-kan.liang@linux.intel.com
2024-09-10 12:02:23 +02:00
Lee Trager
0246388b9b eth: fbnic: Add devlink firmware version info
This adds support to show firmware version information for both stored and
running firmware versions. The version and commit is displayed separately
to aid monitoring tools which only care about the version.

Example output:
  # devlink dev info
  pci/0000:01:00.0:
    driver fbnic
    serial_number 88-25-08-ff-ff-01-50-92
    versions:
        running:
          fw 24.07.15-017
          fw.commit h999784ae9df0
          fw.bootloader 24.07.10-000
          fw.bootloader.commit hfef3ac835ce7
        stored:
          fw 24.07.24-002
          fw.commit hc9d14a68b3f2
          fw.bootloader 24.07.22-000
          fw.bootloader.commit h922f8493eb96
          fw.undi 01.00.03-000

Signed-off-by: Lee Trager <lee@trager.us>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20240905233820.1713043-1-lee@trager.us
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-09-10 12:00:19 +02:00
Peter Zijlstra
1d7f856c2c jump_label: Fix static_key_slow_dec() yet again
While commit 83ab38ef0a ("jump_label: Fix concurrency issues in
static_key_slow_dec()") fixed one problem, it created yet another,
notably the following is now possible:

  slow_dec
    if (try_dec) // dec_not_one-ish, false
    // enabled == 1
                                slow_inc
                                  if (inc_not_disabled) // inc_not_zero-ish
                                  // enabled == 2
                                    return

    guard((mutex)(&jump_label_mutex);
    if (atomic_cmpxchg(1,0)==1) // false, we're 2

                                slow_dec
                                  if (try-dec) // dec_not_one, true
                                  // enabled == 1
                                    return
    else
      try_dec() // dec_not_one, false
      WARN

Use dec_and_test instead of cmpxchg(), like it was prior to
83ab38ef0a. Add a few WARNs for the paranoid.

Fixes: 83ab38ef0a ("jump_label: Fix concurrency issues in static_key_slow_dec()")
Reported-by: "Darrick J. Wong" <djwong@kernel.org>
Tested-by: Klara Modin <klarasmodin@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2024-09-10 11:57:27 +02:00
Joerg Roedel
f0295913c4 iommu/amd: Add kernel parameters to limit V1 page-sizes
Add two new kernel command line parameters to limit the page-sizes
used for v1 page-tables:

	nohugepages     - Limits page-sizes to 4KiB

	v2_pgsizes_only - Limits page-sizes to 4Kib/2Mib/1GiB; The
	                  same as the sizes used with v2 page-tables

This is needed for multiple scenarios. When assigning devices to
SEV-SNP guests the IOMMU page-sizes need to match the sizes in the RMP
table, otherwise the device will not be able to access all shared
memory.

Also, some ATS devices do not work properly with arbitrary IO
page-sizes as supported by AMD-Vi, so limiting the sizes used by the
driver is a suitable workaround.

All-in-all, these parameters are only workarounds until the IOMMU core
and related APIs gather the ability to negotiate the page-sizes in a
better way.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20240905072240.253313-1-joro@8bytes.org
2024-09-10 11:48:57 +02:00
Kan Liang
bbdd4df35c dmaengine: idxd: Clean up cpumask and hotplug for perfmon
The idxd PMU is system-wide scope, which is supported by the generic
perf_event subsystem now.

Set the scope for the idxd PMU and remove all the cpumask and hotplug
codes.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Link: https://lore.kernel.org/r/20240802151643.1691631-6-kan.liang@linux.intel.com
2024-09-10 11:44:13 +02:00
Kan Liang
a8c73b82f7 iommu/vt-d: Clean up cpumask and hotplug for perfmon
The iommu PMU is system-wide scope, which is supported by the generic
perf_event subsystem now.

Set the scope for the iommu PMU and remove all the cpumask and hotplug
codes.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20240802151643.1691631-5-kan.liang@linux.intel.com
2024-09-10 11:44:13 +02:00
Kan Liang
08155c7f2a perf/x86/intel/cstate: Clean up cpumask and hotplug
There are three cstate PMUs with different scopes, core, die and module.
The scopes are supported by the generic perf_event subsystem now.

Set the scope for each PMU and remove all the cpumask and hotplug codes.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240802151643.1691631-4-kan.liang@linux.intel.com
2024-09-10 11:44:13 +02:00
Kan Liang
a48a36b316 perf: Add PERF_EV_CAP_READ_SCOPE
Usually, an event can be read from any CPU of the scope. It doesn't need
to be read from the advertised CPU.

Add a new event cap, PERF_EV_CAP_READ_SCOPE. An event of a PMU with
scope can be read from any active CPU in the scope.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240802151643.1691631-3-kan.liang@linux.intel.com
2024-09-10 11:44:13 +02:00
Kan Liang
4ba4f1afb6 perf: Generic hotplug support for a PMU with a scope
The perf subsystem assumes that the counters of a PMU are per-CPU. So
the user space tool reads a counter from each CPU in the system wide
mode. However, many PMUs don't have a per-CPU counter. The counter is
effective for a scope, e.g., a die or a socket. To address this, a
cpumask is exposed by the kernel driver to restrict to one CPU to stand
for a specific scope. In case the given CPU is removed,
the hotplug support has to be implemented for each such driver.

The codes to support the cpumask and hotplug are very similar.
- Expose a cpumask into sysfs
- Pickup another CPU in the same scope if the given CPU is removed.
- Invoke the perf_pmu_migrate_context() to migrate to a new CPU.
- In event init, always set the CPU in the cpumask to event->cpu

Similar duplicated codes are implemented for each such PMU driver. It
would be good to introduce a generic infrastructure to avoid such
duplication.

5 popular scopes are implemented here, core, die, cluster, pkg, and
the system-wide. The scope can be set when a PMU is registered. If so, a
"cpumask" is automatically exposed for the PMU.

The "cpumask" is from the perf_online_<scope>_mask, which is to track
the active CPU for each scope. They are set when the first CPU of the
scope is online via the generic perf hotplug support. When a
corresponding CPU is removed, the perf_online_<scope>_mask is updated
accordingly and the PMU will be moved to a new CPU from the same scope
if possible.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240802151643.1691631-2-kan.liang@linux.intel.com
2024-09-10 11:44:12 +02:00
Christian Brauner
a6711d1cd4 io_uring: port to struct kmem_cache_args
Port req_cachep to struct kmem_cache_args.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:59 +02:00
Christian Brauner
781aee7556 slab: make __kmem_cache_create() static inline
Make __kmem_cache_create() a static inline function.

Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:59 +02:00
Christian Brauner
0c9050b09c slab: make kmem_cache_create_usercopy() static inline
Make kmem_cache_create_usercopy() a static inline function.

Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
3d453e60f1 slab: remove kmem_cache_create_rcu()
Now that we have ported all users of kmem_cache_create_rcu() to struct
kmem_cache_args the function is unused and can be removed.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
5f7d256682 file: port to struct kmem_cache_args
Port filp_cache to struct kmem_cache_args.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
b2e7456b5c slab: create kmem_cache_create() compatibility layer
Use _Generic() to create a compatibility layer that type switches on the
third argument to either call __kmem_cache_create() or
__kmem_cache_create_args(). If NULL is passed for the struct
kmem_cache_args argument use default args making porting for callers
that don't care about additional arguments easy.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
199cd13a74 slab: port KMEM_CACHE_USERCOPY() to struct kmem_cache_args
Make KMEM_CACHE_USERCOPY() use struct kmem_cache_args.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
052d67b46b slab: port KMEM_CACHE() to struct kmem_cache_args
Make KMEM_CACHE() use struct kmem_cache_args.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
dacf472bcd slab: remove rcu_freeptr_offset from struct kmem_cache
Pass down struct kmem_cache_args to calculate_sizes() so we can use
args->{use}_freeptr_offset directly. This allows us to remove
->rcu_freeptr_offset from struct kmem_cache.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
3dbe2bad57 slab: pass struct kmem_cache_args to do_kmem_cache_create()
and initialize most things in do_kmem_cache_create(). In a follow-up
patch we'll remove rcu_freeptr_offset from struct kmem_cache.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
fc0eac57d0 slab: pull kmem_cache_open() into do_kmem_cache_create()
do_kmem_cache_create() is the only caller and we're going to pass down
struct kmem_cache_args in a follow-up patch.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
34410a9060 slab: pass struct kmem_cache_args to create_cache()
Pass struct kmem_cache_args to create_cache() so that we can later
simplify further helpers.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
1d3d7645d7 slab: port kmem_cache_create_usercopy() to struct kmem_cache_args
Port kmem_cache_create_usercopy() to struct kmem_cache_args and remove
the now unused do_kmem_cache_create_usercopy() helper.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
9816c3c4e7 slab: port kmem_cache_create_rcu() to struct kmem_cache_args
Port kmem_cache_create_rcu() to struct kmem_cache_args.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:58 +02:00
Christian Brauner
f6cd98c940 slab: port kmem_cache_create() to struct kmem_cache_args
Port kmem_cache_create() to struct kmem_cache_args.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:57 +02:00
Christian Brauner
879fb3c274 slab: add struct kmem_cache_args
Currently we have multiple kmem_cache_create*() variants that take up to
seven separate parameters with one of the functions having to grow an
eigth parameter in the future to handle both usercopy and a custom
freelist pointer.

Add a struct kmem_cache_args structure and move less common parameters
into it. Core parameters such as name, object size, and flags continue
to be passed separately.

Add a new function __kmem_cache_create_args() that takes a struct
kmem_cache_args pointer and port do_kmem_cache_create_usercopy() over to
it.

In follow-up patches we will port the other kmem_cache_create*()
variants over to it as well.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:57 +02:00
Christian Brauner
53d3d21086 slab: s/__kmem_cache_create/do_kmem_cache_create/g
Free up reusing the double-underscore variant for follow-up patches.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-09-10 11:42:57 +02:00
Vlastimil Babka
e16f4f7098
Merge branch 'vfs.file' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs into slab/for-6.12/kmem_cache_args
Merge prerequisities from the vfs git tree for the following series that
introduces kmem_cache_args. The vfs.file branch includes the addition of
kmem_cache_create_rcu() which was needed in vfs for the filp cache
optimization. The following series refactors this code.
2024-09-10 11:42:27 +02:00
Kris Van Hees
23d93aa4b3 kbuild: add mod(name,file)_flags to assembler flags for module objects
In order to create the file at build time, modules.builtin.ranges, that
contains the range of addresses for all built-in modules, there needs to
be a way to identify what code is compiled into modules.

To identify what code is compiled into modules during a kernel build,
one can look for the presence of the -DKBUILD_MODFILE and -DKBUILD_MODNAME
options in the compile command lines.  A simple grep in .*.cmd files for
those options is sufficient for this.

Unfortunately, these options are only passed when compiling C source files.
Various modules also include objects built from assembler source, and these
options are not passed in that case.

Adding $(modfile_flags) to modkern_aflags (similar to modkern_cflags), and
adding $(modname_flags) to a_flags (similar to c_flags) makes it possible
to identify which objects are compiled into modules for both C and
assembler source files.  While KBUILD_MODFILE is sufficient to generate
the modules ranges data, KBUILD_MODNAME is passed as well for consistency
with the C source code case.

Signed-off-by: Kris Van Hees <kris.van.hees@oracle.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Tested-by: Sam James <sam@gentoo.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-09-10 18:36:10 +09:00