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4 years agoregulator: qcom_smd: Fix up PM8950 regulator configuration
Konrad Dybcio [Sat, 30 Apr 2022 16:37:52 +0000 (18:37 +0200)] 
regulator: qcom_smd: Fix up PM8950 regulator configuration

Following changes have been made:

- S5, L4, L18, L20 and L21 were removed (S5 is managed by
SPMI, whereas the rest seems not to exist [or at least it's blocked
by Sony Loire /MSM8956/ RPM firmware])

- Supply maps have were adjusted to reflect regulator changes.

Fixes: e44adca5fa25 ("regulator: qcom_smd: Add PM8950 regulators")
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20220430163753.609909-1-konrad.dybcio@somainline.org
Signed-off-by: Mark Brown <broonie@kernel.org>
4 years agoAdd missing dt-binding properties for audio components on mt8192-asurada
Mark Brown [Mon, 9 May 2022 17:16:54 +0000 (18:16 +0100)] 
Add missing dt-binding properties for audio components on mt8192-asurada

Merge series from Nícolas F. R. A. Prado <nfraprado@collabora.com>:

These patches add properties that were missing on the dt-bindings of the
audio components used by mt8192-asurada. Namely the i2s-share
properties for the sound platform and the #sound-dai-cells on the
rt1015p and rt5682 codecs when they're referenced by the machine sound
node.

Nícolas F. R. A. Prado (3):
  ASoC: dt-bindings: mediatek: mt8192: Add i2s-share properties
  ASoC: dt-bindings: rt1015p: Add #sound-dai-cells
  ASoC: dt-bindings: rt5682: Add #sound-dai-cells

 Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml  | 5 +++++
 Documentation/devicetree/bindings/sound/realtek,rt1015p.yaml | 3 +++
 Documentation/devicetree/bindings/sound/rt5682.txt           | 2 ++
 3 files changed, 10 insertions(+)

--
2.36.0

4 years agonfs: fix broken handling of the softreval mount option
Dan Aloni [Sun, 8 May 2022 12:54:50 +0000 (15:54 +0300)] 
nfs: fix broken handling of the softreval mount option

Turns out that ever since this mount option was added, passing
`softreval` in NFS mount options cancelled all other flags while not
affecting the underlying flag `NFS_MOUNT_SOFTREVAL`.

Fixes: c74dfe97c104 ("NFS: Add mount option 'softreval'")
Signed-off-by: Dan Aloni <dan.aloni@vastdata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
4 years agoRevert "cpufreq: Fix possible race in cpufreq online error path"
Viresh Kumar [Mon, 9 May 2022 03:57:37 +0000 (09:27 +0530)] 
Revert "cpufreq: Fix possible race in cpufreq online error path"

This reverts commit f346e96267cd76175d6c201b40f770c0116a8a04.

The commit tried to fix a possible real bug but it made it even worse.
The fix was simply buggy as now an error out to out_offline_policy or
out_exit_policy will try to release a semaphore which was never taken in
the first place. This works fine only if we failed late, i.e. via
out_destroy_policy.

Fixes: f346e96267cd ("cpufreq: Fix possible race in cpufreq online error path")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
4 years agoMerge branch 'dt/linus' into dt/next
Rob Herring [Mon, 9 May 2022 16:50:27 +0000 (11:50 -0500)] 
Merge branch 'dt/linus' into dt/next

Pick up new meta-schema fixes.

4 years agodm crypt: make printing of the key constant-time
Mikulas Patocka [Mon, 25 Apr 2022 12:53:29 +0000 (08:53 -0400)] 
dm crypt: make printing of the key constant-time

The device mapper dm-crypt target is using scnprintf("%02x", cc->key[i]) to
report the current key to userspace. However, this is not a constant-time
operation and it may leak information about the key via timing, via cache
access patterns or via the branch predictor.

Change dm-crypt's key printing to use "%c" instead of "%02x". Also
introduce hex2asc() that carefully avoids any branching or memory
accesses when converting a number in the range 0 ... 15 to an ascii
character.

Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
4 years agof2fs: stop allocating pinned sections if EAGAIN happens
Jaegeuk Kim [Fri, 6 May 2022 21:17:32 +0000 (14:17 -0700)] 
f2fs: stop allocating pinned sections if EAGAIN happens

EAGAIN doesn't guarantee to have a free section. Let's report it.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
4 years agof2fs: skip GC if possible when checkpoint disabling
Weichao Guo [Fri, 6 May 2022 16:28:14 +0000 (00:28 +0800)] 
f2fs: skip GC if possible when checkpoint disabling

If the number of unusable blocks is not larger than
unusable capacity, we can skip GC when checkpoint
disabling.

Signed-off-by: Weichao Guo <guoweichao@oppo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
[Jaegeuk Kim: Fix missing gc_mode assignment]
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
4 years agodm integrity: fix error code in dm_integrity_ctr()
Dan Carpenter [Mon, 25 Apr 2022 11:56:48 +0000 (14:56 +0300)] 
dm integrity: fix error code in dm_integrity_ctr()

The "r" variable shadows an earlier "r" that has function scope.  It
means that we accidentally return success instead of an error code.
Smatch has a warning for this:

drivers/md/dm-integrity.c:4503 dm_integrity_ctr()
warn: missing error code 'r'

Fixes: 7eada909bfd7 ("dm: add integrity target")
Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
4 years agodm stats: add cond_resched when looping over entries
Mikulas Patocka [Sun, 24 Apr 2022 20:43:00 +0000 (16:43 -0400)] 
dm stats: add cond_resched when looping over entries

dm-stats can be used with a very large number of entries (it is only
limited by 1/4 of total system memory), so add rescheduling points to
the loops that iterate over the entries.

Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
4 years agodt-bindings: display: convert Arm Komeda to DT schema
Andre Przywara [Fri, 6 May 2022 14:05:33 +0000 (15:05 +0100)] 
dt-bindings: display: convert Arm Komeda to DT schema

The Arm Komeda (aka Mali-D71) is a display controller that scans out a
framebuffer and hands a signal to a digital encoder to generate a DVI
or HDMI signal. It supports up to two pipelines, each frame can be
composed of up to four layers.

Convert the existing DT binding to DT schema.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-12-andre.przywara@arm.com
4 years agodt-bindings: display: convert Arm Mali-DP to DT schema
Andre Przywara [Fri, 6 May 2022 14:05:32 +0000 (15:05 +0100)] 
dt-bindings: display: convert Arm Mali-DP to DT schema

The Arm Mali Display Processor (DP) 5xx/6xx is a series of IP that scans
out a framebuffer and hands the pixels over to a digital signal encoder.
It supports multiple layers, scaling and rotation.

Convert the existing DT binding to DT schema.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-11-andre.przywara@arm.com
4 years agodt-bindings: display: convert Arm HDLCD to DT schema
Andre Przywara [Fri, 6 May 2022 14:05:31 +0000 (15:05 +0100)] 
dt-bindings: display: convert Arm HDLCD to DT schema

The Arm HDLCD is a display controller that scans out a framebuffer and
hands a signal to a digital encoder to generate a DVI or HDMI signal.

Convert the existing DT binding to DT schema.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-10-andre.przywara@arm.com
4 years agodt-bindings: display: convert PL110/PL111 to DT schema
Andre Przywara [Fri, 6 May 2022 14:05:30 +0000 (15:05 +0100)] 
dt-bindings: display: convert PL110/PL111 to DT schema

The Arm PL110 and PL111 are IP blocks that provide a display engine with
an LCD interface, being able to drive a variety of LC panels.

Convert the binding over to DT schema, to the DTs can be automatically
checked.
This still contains the deprecated "arm,pl11x,tft-r0g0b0-pads" property,
because this is used by several DTs in the tree.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[robh: make interrupts optional (not connected on Realview EB)]
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-9-andre.przywara@arm.com
4 years agodt-bindings: arm: convert vexpress-config to DT schema
Andre Przywara [Fri, 6 May 2022 14:05:29 +0000 (15:05 +0100)] 
dt-bindings: arm: convert vexpress-config to DT schema

The Arm Versatile Express system features a bridge device that provides
access to various smaller devices like clocks, reset gates and various
sensors.

Extract the second half of the informal vexpress-sysreg.txt binding and
make it proper DT schema compliant. This makes the old .txt binding
redundant, so remove it.

This describes both the actual parent configuration bridge, as well as
all the possible children devices.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-8-andre.przywara@arm.com
4 years agodt-bindings: arm: convert vexpress-sysregs to DT schema
Andre Przywara [Fri, 6 May 2022 14:05:28 +0000 (15:05 +0100)] 
dt-bindings: arm: convert vexpress-sysregs to DT schema

The Arm Versatile Express system control register block provides GPIO
functionality to some devices and is also used for board identification.

Extract the first half of the informal vexpress-sysreg.txt binding and
make it proper DT schema compliant.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-7-andre.przywara@arm.com
4 years agodt-bindings: serio: add Arm PL050 DT schema
Andre Przywara [Fri, 6 May 2022 14:05:27 +0000 (15:05 +0100)] 
dt-bindings: serio: add Arm PL050 DT schema

The Arm PL050 "Keyboard/Mouse Interface" is an Arm system IP providing a
PS/2 compatible serial interface.

Add a simple DT schema binding, based on the TRM[1], the existing DTs and
the Linux driver.

[1] https://developer.arm.com/documentation/ddi0143/latest

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-6-andre.przywara@arm.com
4 years agodt-bindings: sound: add Arm PL041 AACI DT schema
Andre Przywara [Fri, 6 May 2022 14:05:26 +0000 (15:05 +0100)] 
dt-bindings: sound: add Arm PL041 AACI DT schema

The Arm PrimeCell Advanced Audio CODEC Interface (AACI aka PL041) is
a peripheral that provides communication with an audio CODEC.

Add a simple DT schema binding for it, so that DTs can be validated
automatically.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-5-andre.przywara@arm.com
4 years agodt-bindings: arm: sp810: convert to DT schema
Andre Przywara [Fri, 6 May 2022 14:05:25 +0000 (15:05 +0100)] 
dt-bindings: arm: sp810: convert to DT schema

The Arm SP810 IP is a "system controller", providing clocks, timer and a
watchdog.

Convert the DT binding to DT schema, to allow automatic validation.

The existing .txt binding described all properties as required, but the
assigned-clock* and clock-output-names are actually not (from a hardware
perspective). The only existing driver I could find (in Linux) doesn't
require them either, so drop those properties from the "required" list.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-4-andre.przywara@arm.com
4 years agodt-bindings: arm: spe-pmu: convert to DT schema
Andre Przywara [Fri, 6 May 2022 14:05:24 +0000 (15:05 +0100)] 
dt-bindings: arm: spe-pmu: convert to DT schema

Convert the Arm Statisical Profiling Extension (SPE) binding to DT
schema.
Not much to see here, basically just the announcement that SPE is
integrated on the system level and where the IRQ is routed to.

Move it into the more suitable perf/ directory on the way.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-3-andre.przywara@arm.com
4 years agodt-bindings: iommu: arm,smmu-v3: make PRI IRQ optional
Andre Przywara [Fri, 6 May 2022 14:05:23 +0000 (15:05 +0100)] 
dt-bindings: iommu: arm,smmu-v3: make PRI IRQ optional

The Page Request Interface (PRI) is an optional PCIe feature. As such, a
SMMU would not need to handle it if the PCIe host bridge or the SMMU
itself do not implement it. Also an SMMU could be connected to a platform
device, without any PRI functionality whatsoever.
In all cases there would be no SMMU PRI queue interrupt to be wired up
to an interrupt controller.
At the moment, with the "eventq,gerror,priq,cmdq-sync" order, we
would need to sacrifice the command queue sync interrupt as well, which
might not be desired.

Relax the binding to allow specifying certain useful combinations of
wired interrupts, for instance just the "gerror" interrupt, or omitting
both "pri" and "cmdq-sync".

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-2-andre.przywara@arm.com
4 years agodt-bindings: remoteproc: st,stm32-rproc: Fix phandle-array parameters description
Arnaud Pouliquen [Thu, 5 May 2022 11:36:39 +0000 (13:36 +0200)] 
dt-bindings: remoteproc: st,stm32-rproc: Fix phandle-array parameters description

Replace the FIXME by appropriate description.

Fixes: 39bd2b6a3783 ("dt-bindings: Improve phandle-array schemas")
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220505113639.1344281-1-arnaud.pouliquen@foss.st.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
4 years agoMerge tag 'platform-drivers-x86-v5.18-4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 9 May 2022 15:48:59 +0000 (08:48 -0700)] 
Merge tag 'platform-drivers-x86-v5.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:

 - thinkpad_acpi AMD suspend/resume + fan detection fixes

 - two other small fixes

 - one hardware-id addition

* tag 'platform-drivers-x86-v5.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/surface: aggregator: Fix initialization order when compiling as builtin module
  platform/surface: gpe: Add support for Surface Pro 8
  platform/x86/intel: Fix 'rmmod pmt_telemetry' panic
  platform/x86: thinkpad_acpi: Correct dual fan probe
  platform/x86: thinkpad_acpi: Add a s2idle resume quirk for a number of laptops
  platform/x86: thinkpad_acpi: Convert btusb DMI list to quirks

4 years agoremoteproc: imx_rproc: Support i.MX93
Peng Fan [Fri, 29 Apr 2022 00:53:46 +0000 (08:53 +0800)] 
remoteproc: imx_rproc: Support i.MX93

i.MX93 features a Cortex-M33 core which could be kicked by ROM/Bootloader
/Linux. Similar with i.MX8MN/P, we use SMC to trap into Arm Trusted
Firmware to start/stop the M33 core.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20220429005346.2108279-3-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
4 years agodt-bindings: remoteproc: imx_rproc: Support i.MX93
Peng Fan [Fri, 29 Apr 2022 00:53:45 +0000 (08:53 +0800)] 
dt-bindings: remoteproc: imx_rproc: Support i.MX93

Add i.MX93 remote processor(Cortex-M33) compatible string, and
reorder the strings in alphabetical order.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220429005346.2108279-2-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
4 years agoselftests/bpf: Test libbpf's ringbuf size fix up logic
Andrii Nakryiko [Mon, 9 May 2022 00:41:48 +0000 (17:41 -0700)] 
selftests/bpf: Test libbpf's ringbuf size fix up logic

Make sure we always excercise libbpf's ringbuf map size adjustment logic
by specifying non-zero size that's definitely not a page size multiple.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-10-andrii@kernel.org
4 years agolibbpf: Automatically fix up BPF_MAP_TYPE_RINGBUF size, if necessary
Andrii Nakryiko [Mon, 9 May 2022 00:41:47 +0000 (17:41 -0700)] 
libbpf: Automatically fix up BPF_MAP_TYPE_RINGBUF size, if necessary

Kernel imposes a pretty particular restriction on ringbuf map size. It
has to be a power-of-2 multiple of page size. While generally this isn't
hard for user to satisfy, sometimes it's impossible to do this
declaratively in BPF source code or just plain inconvenient to do at
runtime.

One such example might be BPF libraries that are supposed to work on
different architectures, which might not agree on what the common page
size is.

Let libbpf find the right size for user instead, if it turns out to not
satisfy kernel requirements. If user didn't set size at all, that's most
probably a mistake so don't upsize such zero size to one full page,
though. Also we need to be careful about not overflowing __u32
max_entries.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-9-andrii@kernel.org
4 years agolibbpf: Provide barrier() and barrier_var() in bpf_helpers.h
Andrii Nakryiko [Mon, 9 May 2022 00:41:46 +0000 (17:41 -0700)] 
libbpf: Provide barrier() and barrier_var() in bpf_helpers.h

Add barrier() and barrier_var() macros into bpf_helpers.h to be used by
end users. While a bit advanced and specialized instruments, they are
sometimes indispensable. Instead of requiring each user to figure out
exact asm volatile incantations for themselves, provide them from
bpf_helpers.h.

Also remove conflicting definitions from selftests. Some tests rely on
barrier_var() definition being nothing, those will still work as libbpf
does the #ifndef/#endif guarding for barrier() and barrier_var(),
allowing users to redefine them, if necessary.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-8-andrii@kernel.org
4 years agoselftests/bpf: Add bpf_core_field_offset() tests
Andrii Nakryiko [Mon, 9 May 2022 00:41:45 +0000 (17:41 -0700)] 
selftests/bpf: Add bpf_core_field_offset() tests

Add test cases for bpf_core_field_offset() helper.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-7-andrii@kernel.org
4 years agolibbpf: Complete field-based CO-RE helpers with field offset helper
Andrii Nakryiko [Mon, 9 May 2022 00:41:44 +0000 (17:41 -0700)] 
libbpf: Complete field-based CO-RE helpers with field offset helper

Add bpf_core_field_offset() helper to complete field-based CO-RE
helpers. This helper can be useful for feature-detection and for some
more advanced cases of field reading (e.g., reading flexible array members).

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-6-andrii@kernel.org
4 years agoselftests/bpf: Use both syntaxes for field-based CO-RE helpers
Andrii Nakryiko [Mon, 9 May 2022 00:41:43 +0000 (17:41 -0700)] 
selftests/bpf: Use both syntaxes for field-based CO-RE helpers

Excercise both supported forms of bpf_core_field_exists() and
bpf_core_field_size() helpers: variable-based field reference and
type/field name-based one.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-5-andrii@kernel.org
4 years agolibbpf: Improve usability of field-based CO-RE helpers
Andrii Nakryiko [Mon, 9 May 2022 00:41:42 +0000 (17:41 -0700)] 
libbpf: Improve usability of field-based CO-RE helpers

Allow to specify field reference in two ways:

  - if user has variable of necessary type, they can use variable-based
    reference (my_var.my_field or my_var_ptr->my_field). This was the
    only supported syntax up till now.
  - now, bpf_core_field_exists() and bpf_core_field_size() support also
    specifying field in a fashion similar to offsetof() macro, by
    specifying type of the containing struct/union separately and field
    name separately: bpf_core_field_exists(struct my_type, my_field).
    This forms is quite often more convenient in practice and it matches
    type-based CO-RE helpers that support specifying type by its name
    without requiring any variables.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-4-andrii@kernel.org
4 years agolibbpf: Make __kptr and __kptr_ref unconditionally use btf_type_tag() attr
Andrii Nakryiko [Mon, 9 May 2022 00:41:41 +0000 (17:41 -0700)] 
libbpf: Make __kptr and __kptr_ref unconditionally use btf_type_tag() attr

It will be annoying and surprising for users of __kptr and __kptr_ref if
libbpf silently ignores them just because Clang used for compilation
didn't support btf_type_tag(). It's much better to get clear compiler
error than debug BPF verifier failures later on.

Fixes: ef89654f2bc7 ("libbpf: Add kptr type tag macros to bpf_helpers.h")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-3-andrii@kernel.org
4 years agoselftests/bpf: Prevent skeleton generation race
Andrii Nakryiko [Mon, 9 May 2022 00:41:40 +0000 (17:41 -0700)] 
selftests/bpf: Prevent skeleton generation race

Prevent "classic" and light skeleton generation rules from stomping on
each other's toes due to the use of the same <obj>.linked{1,2,3}.o
naming pattern. There is no coordination and synchronizataion between
.skel.h and .lskel.h rules, so they can easily overwrite each other's
intermediate object files, leading to errors like:

  /bin/sh: line 1: 170928 Bus error               (core dumped)
  /data/users/andriin/linux/tools/testing/selftests/bpf/tools/sbin/bpftool gen skeleton
  /data/users/andriin/linux/tools/testing/selftests/bpf/test_ksyms_weak.linked3.o
  name test_ksyms_weak
  > /data/users/andriin/linux/tools/testing/selftests/bpf/test_ksyms_weak.skel.h
  make: *** [Makefile:507: /data/users/andriin/linux/tools/testing/selftests/bpf/test_ksyms_weak.skel.h] Error 135
  make: *** Deleting file '/data/users/andriin/linux/tools/testing/selftests/bpf/test_ksyms_weak.skel.h'

Fix by using different suffix for light skeleton rule.

Fixes: c48e51c8b07a ("bpf: selftests: Add selftests for module kfunc support")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220509004148.1801791-2-andrii@kernel.org
4 years agocoresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier
Guilherme G. Piccoli [Wed, 27 Apr 2022 22:49:03 +0000 (19:49 -0300)] 
coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier

The panic notifier infrastructure executes registered callbacks when
a panic event happens - such callbacks are executed in atomic context,
with interrupts and preemption disabled in the running CPU and all other
CPUs disabled. That said, mutexes in such context are not a good idea.

This patch replaces a regular mutex with a mutex_trylock safer approach;
given the nature of the mutex used in the driver, it should be pretty
uncommon being unable to acquire such mutex in the panic path, hence
no functional change should be observed (and if it is, that would be
likely a deadlock with the regular mutex).

Fixes: 2227b7c74634 ("coresight: add support for CPU debug module")
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20220427224924.592546-10-gpiccoli@igalia.com
4 years agoARM: configs: Enable audio on BeagleBone Black in multi_v7_defconfig
Mark Brown [Fri, 6 May 2022 22:26:46 +0000 (23:26 +0100)] 
ARM: configs: Enable audio on BeagleBone Black in multi_v7_defconfig

The BeagleBone Black supports audio over HDMI, using a combination of the
DaVinci McASP (used for audio by a very large proportion of DaVinci systems
with audio support) and a TDA998x device driving the HDMI link (this is a
very widely used driver). Build both drivers as modules in multi_v7_defconfig
so they can be more easily included in testing.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Bartosz Golaszewski <brgl@bgdev.pl>
Link: https://lore.kernel.org/r/20220506222646.1671474-1-broonie@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoMerge tag 'sunxi-dt-for-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Arnd Bergmann [Mon, 9 May 2022 14:18:30 +0000 (16:18 +0200)] 
Merge tag 'sunxi-dt-for-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/dt

- F1C100 improvements (SPI, MMC, timer, cpu, watchdog)
- SPI flash node for licheepi-nano
- enabled analogue audio on olinuxino-a64
- GPIO port regulators on teres-i
- remove undocumented property from nanopi

* tag 'sunxi-dt-for-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  ARM: dts: sunxi: nanopi: Remove input-name property

Link: https://lore.kernel.org/r/Yngton59OacOR2ht@kista.localdomain
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoslimbus: qcom: Fix IRQ check in qcom_slim_probe
Miaoqian Lin [Fri, 29 Apr 2022 16:49:17 +0000 (17:49 +0100)] 
slimbus: qcom: Fix IRQ check in qcom_slim_probe

platform_get_irq() returns non-zero IRQ number on success,
negative error number on failure.
And the doc of platform_get_irq() provides a usage example:

    int irq = platform_get_irq(pdev, 0);
    if (irq < 0)
        return irq;

Fix the check of return value to catch errors correctly.

Fixes: ad7fcbc308b0 ("slimbus: qcom: Add Qualcomm Slimbus controller driver")
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429164917.5202-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agonvmem: sfp: Add support for TA 2.1 devices
Sean Anderson [Fri, 29 Apr 2022 16:27:01 +0000 (17:27 +0100)] 
nvmem: sfp: Add support for TA 2.1 devices

This adds support for Trust Architecture (TA) 2.1 devices to the SFP driver.
There are few differences between TA 2.1 and TA 3.0, especially for
read-only support, so just re-use the existing data.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-17-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agonvmem: sfp: Use regmap
Sean Anderson [Fri, 29 Apr 2022 16:27:00 +0000 (17:27 +0100)] 
nvmem: sfp: Use regmap

This converts the SFP driver to use regmap. This will allow easily
supporting devices with different endians. We disallow byte-level
access, as regmap_bulk_read doesn't support it (and it's unclear what
the correct result would be when we have an endianness difference).

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-16-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agodt-bindings: nvmem: sfp: Add compatible binding for TA 2.1 SFPs
Sean Anderson [Fri, 29 Apr 2022 16:26:59 +0000 (17:26 +0100)] 
dt-bindings: nvmem: sfp: Add compatible binding for TA 2.1 SFPs

Trust Architecture (TA) 2.1 devices include the LS1012A, LS1021A,
LS1043A, and LS1046A. The SFP device on TA 2.1 devices is very similar
to the SFP on TA 3.0 devices. The primary difference is a few fields in
the control register. Add a compatible string.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-15-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agodt-bindings: nvmem: sfp: Add TA_PROG_SFP supply
Sean Anderson [Fri, 29 Apr 2022 16:26:58 +0000 (17:26 +0100)] 
dt-bindings: nvmem: sfp: Add TA_PROG_SFP supply

The TA_PROG_SFP supply must be enabled to program the fuses, and
disabled to read the fuses (such as at power-on-reset). On many boards,
this supply is controlled by a jumper. The user must manually insert or
remove it at the appropriate time in the programming process. However,
on other boards this supply is controlled by an FPGA or a GPIO. In
these cases, the driver can automatically enable and disable it as
necessary.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-14-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agodt-bindings: nvmem: sfp: Add clock properties
Sean Anderson [Fri, 29 Apr 2022 16:26:57 +0000 (17:26 +0100)] 
dt-bindings: nvmem: sfp: Add clock properties

To program fuses, it is necessary to set the fuse programming time. This
is determined based on the value of the platform clock. Add a clock
property.

Because this property is necessary for programming, it is made
mandatory. Since these bindings have not yet been present in a stable
release (though they are on track for 5.18), it is not an ABI break to
change them in this manner.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-13-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agodt-bindings: nvmem: sfp: Fix typo
Sean Anderson [Fri, 29 Apr 2022 16:26:56 +0000 (17:26 +0100)] 
dt-bindings: nvmem: sfp: Fix typo

There is a small grammatical error in the description. Fix it.

Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-12-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agonvmem: qfprom: using pm_runtime_resume_and_get instead of pm_runtime_get_sync
Minghao Chi [Fri, 29 Apr 2022 16:26:54 +0000 (17:26 +0100)] 
nvmem: qfprom: using pm_runtime_resume_and_get instead of pm_runtime_get_sync

Using pm_runtime_resume_and_get is more appropriate
for simplifing code

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-10-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agonvmem: Add Apple eFuse driver
Sven Peter [Fri, 29 Apr 2022 16:26:50 +0000 (17:26 +0100)] 
nvmem: Add Apple eFuse driver

Apple SoCs contain eFuses used to store factory-programmed data such
as calibration values for the PCIe or the Type-C PHY. They are organized
as 32bit values exposed as MMIO.

Signed-off-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-6-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agodt-bindings: nvmem: Add apple,efuses
Sven Peter [Fri, 29 Apr 2022 16:26:49 +0000 (17:26 +0100)] 
dt-bindings: nvmem: Add apple,efuses

Apple SoCs come with eFuses used to store factory-programmed data
such as calibration settings for the PCIe and Type-C PHY.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoMAINTAINERS: Add apple efuses nvmem files to ARM/APPLE MACHINE
Sven Peter [Fri, 29 Apr 2022 16:26:48 +0000 (17:26 +0100)] 
MAINTAINERS: Add apple efuses nvmem files to ARM/APPLE MACHINE

Signed-off-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agonvmem: brcm_nvram: find Device Tree nodes for NVMEM cells
Rafał Miłecki [Fri, 29 Apr 2022 16:26:47 +0000 (17:26 +0100)] 
nvmem: brcm_nvram: find Device Tree nodes for NVMEM cells

DT binding for Broadcom's NVRAM supports specifying NVMEM cells as NVMEM
device (provider) subnodes. Look for such subnodes when collecing NVMEM
cells. This allows NVMEM consumers to use NVRAM variables.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agonvmem: core: support passing DT node in cell info
Rafał Miłecki [Fri, 29 Apr 2022 16:26:46 +0000 (17:26 +0100)] 
nvmem: core: support passing DT node in cell info

Some hardware may have NVMEM cells described in Device Tree using
individual nodes. Let drivers pass such nodes to the NVMEM subsystem so
they can be later used by NVMEM consumers.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agobinder: additional transaction error logs
Carlos Llamas [Fri, 29 Apr 2022 23:56:44 +0000 (23:56 +0000)] 
binder: additional transaction error logs

Log readable and specific error messages whenever a transaction failure
happens. This will ensure better context is given to regular users about
these unique error cases, without having to decode a cryptic log.

Acked-by: Todd Kjos <tkjos@google.com>
Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220429235644.697372-6-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agobinder: convert logging macros into functions
Carlos Llamas [Fri, 29 Apr 2022 23:56:43 +0000 (23:56 +0000)] 
binder: convert logging macros into functions

Converting binder_debug() and binder_user_error() macros into functions
reduces the overall object size by 16936 bytes when cross-compiled with
aarch64-linux-gnu-gcc 11.2.0:

$ size drivers/android/binder.o.{old,new}
   text    data     bss     dec     hex filename
  77935    6168   20264  104367   197af drivers/android/binder.o.old
  65551    1616   20264   87431   15587 drivers/android/binder.o.new

This is particularly beneficial to functions binder_transaction() and
binder_thread_write() which repeatedly use these macros and are both
part of the critical path for all binder transactions.

$ nm --size vmlinux.{old,new} |grep ' binder_transaction$'
0000000000002f60 t binder_transaction
0000000000002358 t binder_transaction

$ nm --size vmlinux.{old,new} |grep binder_thread_write
0000000000001c54 t binder_thread_write
00000000000014a8 t binder_thread_write

Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220429235644.697372-5-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agobinderfs: add extended_error feature entry
Carlos Llamas [Fri, 29 Apr 2022 23:56:42 +0000 (23:56 +0000)] 
binderfs: add extended_error feature entry

Add extended_error to the binderfs feature list, to help userspace
determine whether the BINDER_GET_EXTENDED_ERROR ioctl is supported by
the binder driver.

Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220429235644.697372-4-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agobinder: add BINDER_GET_EXTENDED_ERROR ioctl
Carlos Llamas [Fri, 29 Apr 2022 23:56:41 +0000 (23:56 +0000)] 
binder: add BINDER_GET_EXTENDED_ERROR ioctl

Provide a userspace mechanism to pull precise error information upon
failed operations. Extending the current error codes returned by the
interfaces allows userspace to better determine the course of action.
This could be for instance, retrying a failed transaction at a later
point and thus offloading the error handling from the driver.

Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220429235644.697372-3-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agobinder: add failed transaction logging info
Carlos Llamas [Fri, 29 Apr 2022 23:56:40 +0000 (23:56 +0000)] 
binder: add failed transaction logging info

Make sure we log relevant information about failed transactions such as
the target proc/thread, call type and transaction id. These details are
particularly important when debugging userspace issues.

Acked-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220429235644.697372-2-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agouio: dfl: add HSSI subsystem feature id
Matthew Gerlach [Thu, 5 May 2022 09:41:29 +0000 (05:41 -0400)] 
uio: dfl: add HSSI subsystem feature id

Add the Device Feature List (DFL) feature id for the
High Speed Serial Interface (HSSI) Subsystem to the
table of ids supported by the uio_dfl driver.

The HSSI Subsystem is a configurable set of IP blocks
to be used as part of a Ethernet or PCS/FEC/PMA pipeline.
Like the Ethernet group used by the N3000 card, the HSSI
Subsystem does not fully implement a network device from
a Linux netdev perspective and is controlled and monitored
from user space software via the uio interface.

The Feature ID table of DFL can be found:
https://github.com/OPAE/dfl-feature-id

Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com>
Link: https://lore.kernel.org/r/20220505094129.686535-1-tianfei.zhang@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoslimbus: qcom-ngd-ctrl: Use platform_get_irq() to get the interrupt
Lad Prabhakar [Fri, 29 Apr 2022 16:50:50 +0000 (17:50 +0100)] 
slimbus: qcom-ngd-ctrl: Use platform_get_irq() to get the interrupt

platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static
allocation of IRQ resources in DT core code, this causes an issue
when using hierarchical interrupt domains using "interrupts" property
in the node as this bypasses the hierarchical setup and messes up the
irq chaining.

In preparation for removal of static setup of IRQ resource from DT core
code use platform_get_irq().

Tested-By: Steev Klimaszewski <steev@kali.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429165051.6187-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agobus: mhi: replace snprintf with sysfs_emit
Wan Jiabing [Tue, 26 Apr 2022 12:58:59 +0000 (20:58 +0800)] 
bus: mhi: replace snprintf with sysfs_emit

Fix following coccicheck warning:
./drivers/bus/mhi/host/init.c:89:8-16: WARNING: use scnprintf or sprintf

Use sysfs_emit and sysfs_emit_at instead of snprintf.

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Link: https://lore.kernel.org/r/20220426125902.681258-1-wanjiabing@vivo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agolkdtm: cfi: Fix type width for masking PAC bits
Kees Cook [Wed, 27 Apr 2022 00:12:26 +0000 (17:12 -0700)] 
lkdtm: cfi: Fix type width for masking PAC bits

The masking for PAC bits wasn't handling 32-bit architectures correctly.
Replace the u64 cast with uintptr_t.

Link: https://lore.kernel.org/lkml/CAMuHMdVz-J-1ZQ08u0bsQihDkcRmEPrtX5B_oRJ+Ns5jrasnUw@mail.gmail.com
Fixes: 2e53b877dc12 ("lkdtm: Add CFI_BACKWARD to test ROP mitigations")
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220427001226.1224704-1-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agomisc: rtsx: set NULL intfdata when probe fails
Shuah Khan [Fri, 29 Apr 2022 21:09:13 +0000 (15:09 -0600)] 
misc: rtsx: set NULL intfdata when probe fails

rtsx_usb_probe() doesn't call usb_set_intfdata() to null out the
interface pointer when probe fails. This leaves a stale pointer.
Noticed the missing usb_set_intfdata() while debugging an unrelated
invalid DMA mapping problem.

Fix it with a call to usb_set_intfdata(..., NULL).

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220429210913.46804-1-skhan@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoaltera-stapl: Use swap() instead of open coding it
Jiapeng Chong [Thu, 5 May 2022 08:15:39 +0000 (16:15 +0800)] 
altera-stapl: Use swap() instead of open coding it

Clean the following coccicheck warning:

./drivers/misc/altera-stapl/altera.c:955:51-52: WARNING opportunity for
swap().

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220505081539.91575-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agomisc: rtsx: add rts5261 efuse function
Ricky WU [Mon, 21 Mar 2022 11:18:30 +0000 (11:18 +0000)] 
misc: rtsx: add rts5261 efuse function

move rts5261_fetch_vendor_settings() to rts5261_init_from_hw()
make sure it be called from S3 or D3

add more register setting when efuse is set
read efuse setting to register on init flow

Signed-off-by: Ricky Wu <Ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/18101ecb0f0749ccb9f564eda171ba40@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
4 years agoMerge branch 'hns3-next'
David S. Miller [Mon, 9 May 2022 13:30:38 +0000 (14:30 +0100)] 
Merge branch 'hns3-next'

Guangbin Huang says:

====================
net: hns3: updates for -next

This series includes some updates for the HNS3 ethernet driver.

Change logs:
V1 -> V2:
 - Fix some sparse warnings of patch 3# and 4#.
 - Add patch #6 to fix sparse warnings of incorrect type of argument.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: fix incorrect type of argument in declaration of function hclge_comm_get_r...
Guangbin Huang [Mon, 9 May 2022 07:55:32 +0000 (15:55 +0800)] 
net: hns3: fix incorrect type of argument in declaration of function hclge_comm_get_rss_indir_tbl

The argument rss_ind_tbl_size is type u16 in function definition of
hclge_comm_get_rss_indir_tbl(), but it is set to type __le16 in function
declaration by mistake, so fix it.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: add query vf ring and vector map relation
Guangbin Huang [Mon, 9 May 2022 07:55:31 +0000 (15:55 +0800)] 
net: hns3: add query vf ring and vector map relation

This patch adds a new mailbox opcode to query map relation between
vf ring and vector.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: add byte order conversion for VF to PF mailbox message
Jie Wang [Mon, 9 May 2022 07:55:30 +0000 (15:55 +0800)] 
net: hns3: add byte order conversion for VF to PF mailbox message

This patch uses __le16/__32 to define mailbox data structures. Then byte
order conversion are added for mailbox messages from VF to PF.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: add byte order conversion for PF to VF mailbox message
Jie Wang [Mon, 9 May 2022 07:55:29 +0000 (15:55 +0800)] 
net: hns3: add byte order conversion for PF to VF mailbox message

Currently, hns3 mailbox processing between PF and VF missed to convert
message byte order and use data type u16 instead of __le16 for mailbox
data process. These processes may cause problems between different
architectures.

So this patch uses __le16/__le32 data type to define mailbox data
structures. To be compatible with old hns3 driver, these structures use
one-byte alignment. Then byte order conversions are added to mailbox
messages from PF to VF.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: remove the affinity settings of vector0
Yufeng Mo [Mon, 9 May 2022 07:55:28 +0000 (15:55 +0800)] 
net: hns3: remove the affinity settings of vector0

Vector0 is used for common interrupt control events and is
irrelevant to performance. Currently, the driver sets the
default affinity of vector0 to NUMA nodes, which is unnecessary.
Therefore, the default setting is removed, and the driver does
not set the affinity for vector0.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: hns3: fix access null pointer issue when set tx-buf-size as 0
Hao Chen [Mon, 9 May 2022 07:55:27 +0000 (15:55 +0800)] 
net: hns3: fix access null pointer issue when set tx-buf-size as 0

When set tx-buf-size as 0 by ethtool, hns3_init_tx_spare_buffer()
will return directly and priv->ring->tx_spare->len is uninitialized,
then print function access priv->ring->tx_spare->len will cause
this issue.

When set tx-buf-size as 0 by ethtool, the print function will
print 0 directly and not access priv->ring->tx_spare->len.

Fixes: 2373b35c24ff ("net: hns3: add log for setting tx spare buf size")
Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoperf metrics: Don't add all tool events for sharing
Ian Rogers [Sat, 7 May 2022 05:34:10 +0000 (22:34 -0700)] 
perf metrics: Don't add all tool events for sharing

Tool events are added to the set of events for parsing so that having a
tool event in a metric doesn't inhibit event sharing of events between
metrics.

All tool events were added but this meant unused tool events would be
counted. Reduce this set of tool events to just those present in the
overall metric list.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220507053410.3798748-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
4 years agoperf metrics: Support all tool events
Ian Rogers [Sat, 7 May 2022 05:34:09 +0000 (22:34 -0700)] 
perf metrics: Support all tool events

Previously duration_time was hard coded, which was ok until commit
b03b89b350034f22 ("perf stat: Add user_time and system_time events")
added additional tool events. Do for all tool events what was previously
done just for duration_time.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220507053410.3798748-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
4 years agoperf evsel: Add tool event helpers
Ian Rogers [Sat, 7 May 2022 05:34:08 +0000 (22:34 -0700)] 
perf evsel: Add tool event helpers

Convert to and from a string. Fix evsel__tool_name() as array is
off-by-1.  Support more than just duration_time as a metric-id.

Fixes: 75eafc970bd9d36d ("perf list: Print all available tool events")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220507053410.3798748-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
4 years agoperf evsel: Constify a few arrays
Ian Rogers [Sat, 7 May 2022 05:34:07 +0000 (22:34 -0700)] 
perf evsel: Constify a few arrays

Remove public definition of evsel__tool_names(). Not used outside
util/evsel.c.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220507053410.3798748-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
4 years agoRevert "perf stat: Support metrics with hybrid events"
Ian Rogers [Sat, 7 May 2022 05:34:06 +0000 (22:34 -0700)] 
Revert "perf stat: Support metrics with hybrid events"

This reverts commit 60344f1a9a597f2e0efcd57df5dad0b42da15e21.

Hybrid metrics place a PMU at the end of the parse string. This is also
where tool events are placed. The behavior of the parse string isn't
clear and so revert the change for now.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220507053410.3798748-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
4 years agodrm/i915: Only setup private tmpfs mount when needed and fix logging
Tvrtko Ursulin [Fri, 29 Apr 2022 10:04:14 +0000 (11:04 +0100)] 
drm/i915: Only setup private tmpfs mount when needed and fix logging

If i915 does not want to use huge pages there is a) no point in setting up
the private mount and b) should former fail, it is misleading to log THP
support is disabled in the caller, which does not even know if callee
tried to enable it.

Fix both by restructuring the flow in i915_gemfs_init and at the same time
note the failure to set it up in all cases.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Eero Tamminen <eero.t.tamminen@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220429100414.647857-2-tvrtko.ursulin@linux.intel.com
4 years agodrm/i915: Enable THP on Icelake and beyond
Tvrtko Ursulin [Fri, 29 Apr 2022 10:04:13 +0000 (11:04 +0100)] 
drm/i915: Enable THP on Icelake and beyond

We have a statement from HW designers that the GPU read regression when
using 2M pages was fixed from Icelake onwards, which was also confirmed
by bencharking Eero did last year:

"""
When IOMMU is disabled, enabling THP causes following perf changes on
TGL-H (GT1):

    10-15% SynMark Batch[0-3]
    5-10% MemBW GPU texture, SynMark ShMapVsm
    3-5% SynMark TerrainFly* + Geom* + Fill* + CSCloth + Batch4
    1-3% GpuTest Triangle, SynMark TexMem* + DeferredAA + Batch[5-7]
          + few others
    -7% MemBW GPU blend

In the above 3D benchmark names, * means all the variants of tests with
the same prefix. For example "SynMark TexMem*", means both TexMem128 &
TexMem512 tests in the synthetic (Intel internal) SynMark test suite.

In the (public, but proprietary) GfxBench & GLB(enchmark) test suites,
there are both onscreen and offscreen variants of each test. Unless
explicitly stated otherwise, numbers are for both variants.

All tests are run with FullHD monitor. All tests are fullscreen except
for GLB and GpuTest ones, which are run in 1/2 screen window (GpuTest
triangle is run both in fullscreen and 1/2 screen window).
"""

Since the only regression is MemBW GPU blend, against many more gains,
it sounds it is time to enable THP on Gen11+.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
References: https://gitlab.freedesktop.org/drm/intel/-/issues/430
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Eero Tamminen <eero.t.tamminen@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220429100414.647857-1-tvrtko.ursulin@linux.intel.com
4 years agodrm/ttm: move default BO destructor into VMWGFX v2
Christian König [Fri, 18 Feb 2022 09:05:40 +0000 (10:05 +0100)] 
drm/ttm: move default BO destructor into VMWGFX v2

It's the only driver using this.

v2: use BUG_ON() in vmw_bo_create() as suggested by Zack

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220329110243.6335-5-christian.koenig@amd.com
4 years agoio_uring: support CQE32 for nop operation
Stefan Roesch [Tue, 26 Apr 2022 18:21:34 +0000 (11:21 -0700)] 
io_uring: support CQE32 for nop operation

This adds support for filling the extra1 and extra2 fields for large
CQE's.

Co-developed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-13-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: enable CQE32
Stefan Roesch [Tue, 26 Apr 2022 18:21:33 +0000 (11:21 -0700)] 
io_uring: enable CQE32

This enables large CQE's in the uring setup.

Co-developed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-12-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: support CQE32 in /proc info
Stefan Roesch [Tue, 26 Apr 2022 18:21:32 +0000 (11:21 -0700)] 
io_uring: support CQE32 in /proc info

This exposes the extra1 and extra2 fields in the /proc output.

Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-11-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: add tracing for additional CQE32 fields
Stefan Roesch [Tue, 26 Apr 2022 18:21:31 +0000 (11:21 -0700)] 
io_uring: add tracing for additional CQE32 fields

This adds tracing for the extra1 and extra2 fields.

Co-developed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-10-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: overflow processing for CQE32
Stefan Roesch [Tue, 26 Apr 2022 18:21:30 +0000 (11:21 -0700)] 
io_uring: overflow processing for CQE32

This adds the overflow processing for large CQE's.

This adds two parameters to the io_cqring_event_overflow function and
uses these fields to initialize the large CQE fields.

Allocate enough space for large CQE's in the overflow structue. If no
large CQE's are used, the size of the allocation is unchanged.

The cqe field can have a different size depending if its a large
CQE or not. To be able to allocate different sizes, the two fields
in the structure are re-ordered.

Co-developed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-9-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: flush completions for CQE32
Stefan Roesch [Tue, 26 Apr 2022 18:21:29 +0000 (11:21 -0700)] 
io_uring: flush completions for CQE32

This flushes the completions according to their CQE type: the same
processing is done for the default CQE size, but for large CQE's the
extra1 and extra2 fields are filled in.

Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-8-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: modify io_get_cqe for CQE32
Stefan Roesch [Tue, 26 Apr 2022 18:21:28 +0000 (11:21 -0700)] 
io_uring: modify io_get_cqe for CQE32

Modify accesses to the CQE array to take large CQE's into account. The
index needs to be shifted by one for large CQE's.

Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-7-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: add CQE32 completion processing
Stefan Roesch [Tue, 26 Apr 2022 18:21:27 +0000 (11:21 -0700)] 
io_uring: add CQE32 completion processing

This adds the completion processing for the large CQE's and makes sure
that the extra1 and extra2 fields are passed through.

Co-developed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-6-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: add CQE32 setup processing
Stefan Roesch [Tue, 26 Apr 2022 18:21:26 +0000 (11:21 -0700)] 
io_uring: add CQE32 setup processing

This adds two new function to setup and fill the CQE32 result structure.

Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-5-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: change ring size calculation for CQE32
Stefan Roesch [Tue, 26 Apr 2022 18:21:25 +0000 (11:21 -0700)] 
io_uring: change ring size calculation for CQE32

This changes the function rings_size to take large CQE's into account.

Co-developed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-4-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: store add. return values for CQE32
Stefan Roesch [Tue, 26 Apr 2022 18:21:24 +0000 (11:21 -0700)] 
io_uring: store add. return values for CQE32

This reuses the hash list node for the storage we need to hold the two
64-bit values that must be passed back.

Co-developed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-3-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: support CQE32 in io_uring_cqe
Stefan Roesch [Tue, 26 Apr 2022 18:21:23 +0000 (11:21 -0700)] 
io_uring: support CQE32 in io_uring_cqe

This adds the big_cqe array to the struct io_uring_cqe to support large
CQE's.

Co-developed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stefan Roesch <shr@fb.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20220426182134.136504-2-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: add support for 128-byte SQEs
Jens Axboe [Fri, 1 Apr 2022 01:27:52 +0000 (19:27 -0600)] 
io_uring: add support for 128-byte SQEs

Normal SQEs are 64-bytes in length, which is fine for all the commands
we support. However, in preparation for supporting passthrough IO,
provide an option for setting up a ring with 128-byte SQEs.

We continue to use the same type for io_uring_sqe, it's marked and
commented with a zero sized array pad at the end. This provides up
to 80 bytes of data for a passthrough command - 64 bytes for the
extra added data, and 16 bytes available at the end of the existing
SQE.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoMerge branch 'for-5.19/io_uring-socket' into for-5.19/io_uring-passthrough
Jens Axboe [Mon, 9 May 2022 12:35:28 +0000 (06:35 -0600)] 
Merge branch 'for-5.19/io_uring-socket' into for-5.19/io_uring-passthrough

* for-5.19/io_uring-socket:
  io_uring: use the text representation of ops in trace
  io_uring: rename op -> opcode
  io_uring: add io_uring_get_opcode
  io_uring: add type to op enum
  io_uring: add socket(2) support
  net: add __sys_socket_file()
  io_uring: fix trace for reduced sqe padding
  io_uring: add fgetxattr and getxattr support
  io_uring: add fsetxattr and setxattr support
  fs: split off do_getxattr from getxattr
  fs: split off setxattr_copy and do_setxattr function from setxattr

4 years agoMerge branch 'for-5.19/io_uring' into for-5.19/io_uring-passthrough
Jens Axboe [Mon, 9 May 2022 12:34:52 +0000 (06:34 -0600)] 
Merge branch 'for-5.19/io_uring' into for-5.19/io_uring-passthrough

* for-5.19/io_uring: (85 commits)
  io_uring: don't clear req->kbuf when buffer selection is done
  io_uring: eliminate the need to track provided buffer ID separately
  io_uring: move provided buffer state closer to submit state
  io_uring: move provided and fixed buffers into the same io_kiocb area
  io_uring: abstract out provided buffer list selection
  io_uring: never call io_buffer_select() for a buffer re-select
  io_uring: get rid of hashed provided buffer groups
  io_uring: always use req->buf_index for the provided buffer group
  io_uring: ignore ->buf_index if REQ_F_BUFFER_SELECT isn't set
  io_uring: kill io_rw_buffer_select() wrapper
  io_uring: make io_buffer_select() return the user address directly
  io_uring: kill io_recv_buffer_select() wrapper
  io_uring: use 'sr' vs 'req->sr_msg' consistently
  io_uring: add POLL_FIRST support for send/sendmsg and recv/recvmsg
  io_uring: check IOPOLL/ioprio support upfront
  io_uring: replace smp_mb() with smp_mb__after_atomic() in io_sq_thread()
  io_uring: add IORING_SETUP_TASKRUN_FLAG
  io_uring: use TWA_SIGNAL_NO_IPI if IORING_SETUP_COOP_TASKRUN is used
  io_uring: set task_work notify method at init time
  io-wq: use __set_notify_signal() to wake workers
  ...

4 years agoMerge tag 'imx-bindings-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawng...
Arnd Bergmann [Mon, 9 May 2022 12:32:56 +0000 (14:32 +0200)] 
Merge tag 'imx-bindings-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt

i.MX dt-bindings update for 5.19:

- Various board compatible additions to fsl.yaml.
- Update fsl-imx-dma bindings to deprecate '#dma-channels' and
  '#dma-requests'.
- Add bindings for i.MX8MP HDMI and media block control.
- Add vendor prefix for Storopack.

* tag 'imx-bindings-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  dt-bindings: arm: Add bosch acc board
  dt-bindings: arm: fsl: Add Storopack i.MX7D SMEGW01 board
  dt-bindings: vendor-prefixes: Add prefix for Storopack
  dt-bindings: dmaengine: fsl-imx: deprecate '#dma-channels' and '#dma-requests'
  dt-bindings: arm: fsl: add toradex,colibri-imx6ull
  dt-bindings: arm: fsl: Add Engicam i.Core MX8M Plus EDIMM2.2 Starter Kit
  dt-bindings: arm: fsl: add ls1021a-iot board
  dt-bindings: arm: Add i.MX8M Mini Toradex Verdin based Menlo board
  dt-bindings: arm: Add i.MX8M Plus Gateworks GW74xx board
  dt-bindings: arm: fsl: add IMX8MN DDR3L eval board
  dt-bindings: arm: fsl: Add carriers for toradex,colibri-imx6dl
  dt-bindings: arm: fsl: imx6dl-colibri: Drop dedicated v1.1 bindings
  dt-bindings: arm: fsl: add toradex,verdin-imx8mp et al.
  dt-bindings: arm: Add i.MX53 based Menlo board comment
  dt-bindings: arm: fsl: add PHYTEC phyGATE Tauri i.MX6 ULL
  dt-bindings: arm: fsl: add TQ Systems boards based on i.MX6UL(L)
  dt-bindings: arm: Add Data Modul i.MX8M Mini eDM SBC
  dt-bindings: soc: add binding for i.MX8MP HDMI blk-ctrl
  dt-bindings: power: imx8mp: add defines for HDMI blk-ctrl domains
  dt-bindings: soc: Add i.MX8MP media block control DT bindings

Link: https://lore.kernel.org/r/20220508033843.2773685-1-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
4 years agoio_uring: don't clear req->kbuf when buffer selection is done
Jens Axboe [Sun, 1 May 2022 18:31:56 +0000 (12:31 -0600)] 
io_uring: don't clear req->kbuf when buffer selection is done

It's not needed as the REQ_F_BUFFER_SELECTED flag tracks the state of
whether or not kbuf is valid, so just drop it.

Suggested-by: Dylan Yudaken <dylany@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: eliminate the need to track provided buffer ID separately
Jens Axboe [Sun, 1 May 2022 18:08:35 +0000 (12:08 -0600)] 
io_uring: eliminate the need to track provided buffer ID separately

We have io_kiocb->buf_index which is used for either fixed buffers, or
for provided buffers. For the latter, it's used to hold the buffer group
ID for buffer selection. Post selection, req->kbuf->bid is used to get
the buffer ID.

Store the buffer ID, when selected, in req->buf_index. If we do end up
recycling the buffer, reset it back to the buffer group ID.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: move provided buffer state closer to submit state
Jens Axboe [Sun, 1 May 2022 17:57:06 +0000 (11:57 -0600)] 
io_uring: move provided buffer state closer to submit state

The timeout and other items that follow are less hot, so let's move the
provided buffer state above that.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: move provided and fixed buffers into the same io_kiocb area
Jens Axboe [Sat, 30 Apr 2022 20:35:17 +0000 (14:35 -0600)] 
io_uring: move provided and fixed buffers into the same io_kiocb area

These are mutually exclusive - if you use provided buffers, then you
cannot use fixed buffers and vice versa. Move them into the same spot
in the io_kiocb, which is also advantageous for provided buffers as
they get near the submit side hot cacheline.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: abstract out provided buffer list selection
Jens Axboe [Sat, 30 Apr 2022 18:22:02 +0000 (12:22 -0600)] 
io_uring: abstract out provided buffer list selection

In preparation for providing another way to select a buffer, move the
existing logic into a helper.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: never call io_buffer_select() for a buffer re-select
Jens Axboe [Sat, 30 Apr 2022 18:16:40 +0000 (12:16 -0600)] 
io_uring: never call io_buffer_select() for a buffer re-select

Callers already have room to store the addr and length information,
clean it up by having the caller just assign the previously provided
data.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 years agoio_uring: get rid of hashed provided buffer groups
Jens Axboe [Sun, 1 May 2022 16:52:44 +0000 (10:52 -0600)] 
io_uring: get rid of hashed provided buffer groups

Use a plain array for any group ID that's less than 64, and punt
anything beyond that to an xarray. 64 fits in a page even for 4KB
page sizes and with the planned additions.

This makes the expected group usage faster by avoiding a hash and lookup
to find our list, and it uses less memory upfront by not allocating any
memory for provided buffers unless it's actually being used.

Suggested-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>