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2024-05-10mfd: Tidy Kconfig dependency's parenthesesJean Delvare
Drop unneeded parentheses for clarity and consistency. Signed-off-by: Jean Delvare <jdelvare@suse.de> Link: https://lore.kernel.org/r/20240407112445.503bcbc6@endymion.delvare Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: ocelot-spi: Use spi_sync_transfer()Christophe JAILLET
Use spi_sync_transfer() instead of hand-writing it. It is less verbose. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Colin Foster <colin.foster@in-advantage.com> Tested-by: Colin Foster <colin.foster@in-advantage.com> Link: https://lore.kernel.org/r/7af920eb686b719cb7eb39c832e3ad414e0e1e1a.1712258667.git.christophe.jaillet@wanadoo.fr Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10dt-bindings: mfd: syscon: Add missing simple syscon compatiblesRob Herring
Add various "simple" syscon compatibles which were undocumented or still documented with old text bindings. apm,xgene-csw, apm,xgene-efuse, apm,xgene-mcb, apm,xgene-rb, fsl,ls1088a-reset, marvell,armada-3700-cpu-misc, mediatek,mt2712-pctl-a-syscfg, mediatek,mt6397-pctl-pmic-syscfg, and mediatek,mt8173-pctl-a-syscfg were all undocumented, but are in use already. Remove the old text binding docs for the others. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240402202413.757283-1-robh@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: rohm-bd71828: Add power off functionalityAndreas Kemnade
Since the chip can power off the system, add the corresponding functionality. Based on https://github.com/kobolabs/Kobo-Reader/raw/master/hw/imx6sll-clara2e/kernel.tar.bz2 Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Acked-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/20240402111700.494004-3-andreas@kemnade.info Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10dt-bindings: mfd: Add ROHM BD71828 system-power-controller propertyAndreas Kemnade
As the PMIC can power off the system, add the corresponding property. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/20240402111700.494004-2-andreas@kemnade.info Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10dt-bindings: mfd: twl: Convert trivial subdevices to json-schemaAndreas Kemnade
Convert subdevices with just an interrupt and compatbile to json-schema and wire up already converted subdevices. RTC is available in all variants, so allow it unconditionally. GPADC binding for TWL603X uses two different compatibles, so specify just the compatible and do not include it. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20240401081831.456828-1-andreas@kemnade.info Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Remove dead codeAndy Shevchenko
scnprintf() never returns negative value, drop the respective dead code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-7-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Drop duplicate NULL check in ->exit()Andy Shevchenko
Since platform_device_unregister() is NULL-aware, we don't need to duplicate this check. Remove it and fold the rest of the code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-6-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Use PLATFORM_DEVID_NONE instead of -1Andy Shevchenko
Use the `PLATFORM_DEVID_NONE` constant instead of hard-coding -1 when creating a platform device. No functional changes are intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-5-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Simplify device registrationAndy Shevchenko
Use platform_device_register_full() instead of open coding this function. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-4-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Use device core to create driver-specific device attributesAndy Shevchenko
Instead of creating driver-specific device attributes with sysfs_create_group() have device core do this by setting up dev_groups pointer in the driver structure. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-3-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Replace ACPI code with agnostic oneAndy Shevchenko
There is no need to include and use entire ACPI stack in the driver. Replace respective pieces by agnostic code. No functional change indented. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-2-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: intel-lpss: Switch over to MSI interruptsAndy Shevchenko
Some devices support MSI interrupts. Let's at least try to use them in platforms that provide MSI capability. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240312165905.1764507-1-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10Merge branches 'ib-mfd-misc-pinctrl-regulator-6.10', ↵Lee Jones
'ib-mfd-pinctrl-regulator-6.10' and 'ib-mfd-regulator-6.10' into ibs-for-mfd-merged
2024-05-10gpiolib: cdev: fix uninitialised kfifoKent Gibson
If a line is requested with debounce, and that results in debouncing in software, and the line is subsequently reconfigured to enable edge detection then the allocation of the kfifo to contain edge events is overlooked. This results in events being written to and read from an uninitialised kfifo. Read events are returned to userspace. Initialise the kfifo in the case where the software debounce is already active. Fixes: 65cff7046406 ("gpiolib: cdev: support setting debounce") Signed-off-by: Kent Gibson <warthog618@gmail.com> Link: https://lore.kernel.org/r/20240510065342.36191-1-warthog618@gmail.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-05-10perf daemon: Fix file leak in daemon_session__controlSamasth Norway Ananda
The open() function returns -1 on error. The 'control' and 'ack' file descriptors are both initialized with open() and further validated with 'if' statement. 'if (!control)' would evaluate to 'true' if returned value on error were '0' but it is actually '-1'. Fixes: edcaa47958c7438b ("perf daemon: Add 'ping' command") Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240510003424.2016914-1-samasth.norway.ananda@oracle.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-10libsubcmd: Fix parse-options memory leakIan Rogers
If a usage string is built in parse_options_subcommand, also free it. Fixes: 901421a5bdf605d2 ("perf tools: Remove subcmd dependencies on strbuf") Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240509052015.1914670-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-10perf lock: Avoid memory leaks from strdup()Ian Rogers
Leak sanitizer complains about the strdup-ed arguments not being freed and given cmd_record doesn't modify the given strings, remove the strdups. Original discussion in this patch: https://lore.kernel.org/lkml/20240430184156.1824083-1-irogers@google.com/ Suggested-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: zhaimingbing <zhaimingbing@cmss.chinamobile.com> Link: https://lore.kernel.org/r/20240509053123.1918093-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-10perf sched: Rename 'switches' column header to 'count' and add usage ↵Madadi Vineeth Reddy
description, options for latency Rename 'Switches' to 'Count' and document metrics shown for perf sched latency output. Also add options possible with perf sched latency. Initially, after seeing the output of 'perf sched latency', the term 'Switches' seemed like it's the number of context switches-in for a particular task, but upon going through the code, it was observed that it's actually keeping track of number of times a delay was calculated so that it is used in calculation of the average delay. Actually, the switches here is a subset of number of context switches-in because there are some cases where the count is not incremented in switch-in handler 'add_sched_in_event'. For example when a task is switched-in while it's state is not ready to run(!= THREAD_WAIT_CPU). commit d9340c1db3f52460 ("perf sched: Display time in milliseconds, reorganize output") changed it from the original count to switches. So, renamed switches to count to make things a bit more clearer and added the metrics description of latency in the document. Reviewed-by: Aditya Gupta <adityag@linux.ibm.com> Signed-off-by: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240328090005.8321-1-vineethr@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-10arm64: defconfig: enable Airoha platformDaniel Danzberger
Enables the ARCH_AIROHA config by default. Signed-off-by: Daniel Danzberger <dd@embedd.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/65737ca5506371ef84c3a055e68d280f314e3b41.1709975956.git.lorenzo@kernel.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-05-10arm64: add Airoha EN7581 platformDaniel Danzberger
Introduce the Kconfig entry for the Airoha EN7581 multicore architecture available in the Airoha EN7581 evaluation board. Signed-off-by: Daniel Danzberger <dd@embedd.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/d52d95db313e6a58ba997ba2181faf78a1014bcc.1709975956.git.lorenzo@kernel.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-05-10perf tools: Ignore deleted cgroupsNamhyung Kim
On large systems, cgroups can be created and deleted often. That means there's a race between perf tools and cgroups when it gets the cgroup name and opens the cgroup. I got a report that 'perf stat' with many cgroups failed quite often due to the missing cgroups on such a large machine. I think we can ignore such cgroups when expanding events and use id 0 if it fails to read the cgroup id. IIUC 0 is not a vaild cgroup id so it won't update event counts for the failed cgroups. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240509182235.2319599-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-10perf parse: Allow tracepoint names to start with digitsDominique Martinet
Tracepoints can start with digits, although we don't have many of these: $ rg -g '*.h' '\bTRACE_EVENT\([0-9]' net/mac802154/trace.h 53:TRACE_EVENT(802154_drv_return_int, ... net/ieee802154/trace.h 66:TRACE_EVENT(802154_rdev_add_virtual_intf, ... include/trace/events/9p.h 124:TRACE_EVENT(9p_client_req, ... Just allow names to start with digits too so e.g. "perf trace -e '9p:*'" works Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Tested-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240510-perf_digit-v4-3-db1553f3233b@codewreck.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-10perf parse-events: Add new 'fake_tp' parameter for testsDominique Martinet
The next commit will allow tracepoints starting with digits, but most systems do not have any available by default so tests should skip the actual "check if it exists in /sys/kernel/debug/tracing" step. In order to do that, add a new boolean flag specifying if we should actually "format" the probe or not. Originally-by: Jiri Olsa <jolsa@kernel.org> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240510-perf_digit-v4-2-db1553f3233b@codewreck.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-10perf parse-events: pass parse_state to add_tracepointDominique Martinet
The next patch will add another flag to parse_state that we will want to pass to evsel__newtp_idx(), so pass the whole parse_state all the way down instead of giving only the index Originally-by: Jiri Olsa <jolsa@kernel.org> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20240510-perf_digit-v4-1-db1553f3233b@codewreck.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-10Merge branch 'for-next/errata' into for-next/coreWill Deacon
* for-next/errata: arm64: errata: Add workaround for Arm errata 3194386 and 3312417 arm64: cputype: Add Neoverse-V3 definitions arm64: cputype: Add Cortex-X4 definitions arm64: barrier: Restore spec_bar() macro
2024-05-10ALSA: core: Remove superfluous CONFIG_PMTakashi Iwai
Since the recent code change, the conditional build with CONFIG_PM is calling only snd_power_sync_ref(). As a dummy function is provided for this function, we can get rid of CONFIG_PM gracefully now. Link: https://lore.kernel.org/r/20240510125128.6058-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-05-10Merge branch 'for-linus' into for-nextTakashi Iwai
Pull 6.9-rc devel branch for further updates. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-05-10Merge tag 'asoc-fix-v6.9-rc7-2' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v6.9 A couple more minor fixes for ASoC, one incremental fix for earlier issues and a minor formatting issue in the Makefile.
2024-05-10parisc/math-emu: Remove unused struct 'exc_reg'Dr. David Alan Gilbert
This has been here since pre-git. Build tested. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Helge Deller <deller@gmx.de>
2024-05-10Merge tag 'gtp-24-05-07' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/pablo/gtp Pablo neira Ayuso says: ==================== gtp pull request 24-05-07 This v3 includes: - fix for clang uninitialized variable per Jakub. - address Smatch and Coccinelle reports per Simon - remove inline in new IPv6 support per Simon - fix memleaks in netlink control plane per Simon -o- The following patchset contains IPv6 GTP driver support for net-next, this also includes IPv6 over IPv4 and vice-versa: Patch #1 removes a unnecessary stack variable initialization in the socket routine. Patch #2 deals with GTP extension headers. This variable length extension header to decapsulate packets accordingly. Otherwise, packets are dropped when these extension headers are present which breaks interoperation with other non-Linux based GTP implementations. Patch #3 prepares for IPv6 support by moving IPv4 specific fields in PDP context objects to a union. Patch #4 adds IPv6 support while retaining backward compatibility. Three new attributes allows to declare an IPv6 GTP tunnel GTPA_FAMILY, GTPA_PEER_ADDR6 and GTPA_MS_ADDR6 as well as IFLA_GTP_LOCAL6 to declare the IPv6 GTP UDP socket. Up to this patch, only IPv6 outer in IPv6 inner is supported. Patch #5 uses IPv6 address /64 prefix for UE/MS in the inner headers. Unlike IPv4, which provides a 1:1 mapping between UE/MS, IPv6 tunnel encapsulates traffic for /64 address as specified by 3GPP TS. Patch has been split from Patch #4 to highlight this behaviour. Patch #6 passes up IPv6 link-local traffic, such as IPv6 SLAAC, for handling to userspace so they are handled as control packets. Patch #7 prepares to allow for GTP IPv4 over IPv6 and vice-versa by moving IP specific debugging out of the function to build IPv4 and IPv6 GTP packets. Patch #8 generalizes TOS/DSCP handling following similar approach as in the existing iptunnel infrastructure. Patch #9 adds a helper function to build an IPv4 GTP packet in the outer header. Patch #10 adds a helper function to build an IPv6 GTP packet in the outer header. Patch #11 adds support for GTP IPv4-over-IPv6 and vice-versa. Patch #12 allows to use the same TID/TEID (tunnel identifier) for inner IPv4 and IPv6 packets for better UE/MS dual stack integration. This series integrates with the osmocom.org project CI and TTCN-3 test infrastructure (Oliver Smith) as well as the userspace libgtpnl library. Thanks to Harald Welte, Oliver Smith and Pau Espin for reviewing and providing feedback through the osmocom.org redmine platform to make this happen. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-10x86/amd_nb: Add new PCI IDs for AMD family 0x1aShyam Sundar S K
Add the new PCI Device IDs to the MISC IDs list to support new generation of AMD 1Ah family 70h Models of processors. [ bp: Massage commit message. ] Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/20240510111829.969501-1-Shyam-sundar.S-k@amd.com
2024-05-10ALSA: Fix deadlocks with kctl removals at disconnectionTakashi Iwai
In snd_card_disconnect(), we set card->shutdown flag at the beginning, call callbacks and do sync for card->power_ref_sleep waiters at the end. The callback may delete a kctl element, and this can lead to a deadlock when the device was in the suspended state. Namely: * A process waits for the power up at snd_power_ref_and_wait() in snd_ctl_info() or read/write() inside card->controls_rwsem. * The system gets disconnected meanwhile, and the driver tries to delete a kctl via snd_ctl_remove*(); it tries to take card->controls_rwsem again, but this is already locked by the above. Since the sleeper isn't woken up, this deadlocks. An easy fix is to wake up sleepers before processing the driver disconnect callbacks but right after setting the card->shutdown flag. Then all sleepers will abort immediately, and the code flows again. So, basically this patch moves the wait_event() call at the right timing. While we're at it, just to be sure, call wait_event_all() instead of wait_event(), although we don't use exclusive events on this queue for now. Link: https://bugzilla.kernel.org/show_bug.cgi?id=218816 Cc: <stable@vger.kernel.org> Reviewed-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20240510101424.6279-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-05-10Merge tag 'asoc-fix-v6.9-rc7' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v6.9 A few final fixes for v6.9, none of them super major but all real.
2024-05-10powerpc/85xx: fix compile error without CONFIG_CRASH_DUMPHari Bathini
Since commit 5c4233cc0920 ("powerpc/kdump: Split KEXEC_CORE and CRASH_DUMP dependency"), crashing_cpu is not available without CONFIG_CRASH_DUMP. Fix compile error on 64-BIT 85xx owing to this change. Fixes: 5c4233cc0920 ("powerpc/kdump: Split KEXEC_CORE and CRASH_DUMP dependency") Cc: stable@vger.kernel.org # v6.9+ Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de> Closes: https://lore.kernel.org/all/fa247ae4-5825-4dbe-a737-d93b7ab4d4b9@xenosoft.de/ Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240510080757.560159-1-hbathini@linux.ibm.com
2024-05-10powerpc/fadump: update documentation about bootargs_appendHari Bathini
Update ABI documentation about the introduction of the new sysfs entry bootargs_append. This sysfs entry will be used to setup the additional parameters to be passed to dump capture kernel. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240510082114.561163-1-hbathini@linux.ibm.com
2024-05-10iommu/arm-smmu-v3: Make the kunit into a moduleJason Gunthorpe
It turns out kconfig has problems ensuring the SMMU module and the KUNIT module are consistently y/m to allow linking. It will permit KUNIT to be a module while SMMU is built in. Also, Fedora apparently enables kunit on production kernels. So, put the entire kunit in its own module using the VISIBLE_IF_KUNIT/EXPORT_SYMBOL_IF_KUNIT machinery. This keeps it out of vmlinus on Fedora and makes the kconfig work in the normal way. There is no cost if kunit is disabled. Fixes: 56e1a4cc2588 ("iommu/arm-smmu-v3: Add unit tests for arm_smmu_write_entry") Reported-by: Thorsten Leemhuis <linux@leemhuis.info> Link: https://lore.kernel.org/all/aeea8546-5bce-4c51-b506-5d2008e52fef@leemhuis.info Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Tested-by: Thorsten Leemhuis <linux@leemhuis.info> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/0-v1-24cba6c0f404+2ae-smmu_kunit_module_jgg@nvidia.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
2024-05-10io_uring: support to inject result for NOPMing Lei
Support to inject result for NOP so that we can inject failure from userspace. It is very helpful for covering failure handling code in io_uring core change. With nop flags, it becomes possible to add more test features on NOP in future. Suggested-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20240510035031.78874-3-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-10io_uring: fail NOP if non-zero op flags is passed inMing Lei
The NOP op flags should have been checked from beginning like any other opcode, otherwise NOP may not be extended with the op flags. Given both liburing and Rust io-uring crate always zeros SQE op flags, just ignore users which play raw NOP uring interface without zeroing SQE, because NOP is just for test purpose. Then we can save one NOP2 opcode. Suggested-by: Jens Axboe <axboe@kernel.dk> Fixes: 2b188cc1bb85 ("Add io_uring IO interface") Cc: stable@vger.kernel.org Signed-off-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20240510035031.78874-2-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-10virtio-fs: add multi-queue supportPeter-Jan Gootzen
This commit creates a multi-queue mapping at device bring-up. The driver first attempts to use the existing MSI-X interrupt affinities (previously disabled), and if not present, will distribute the request queues evenly over the CPUs. If the latter fails as well, all CPUs are mapped to request queue zero. When a request is handed from FUSE to the virtio-fs device driver, the driver will use the current CPU to index into the multi-queue mapping and determine the optimal request queue to use. We measured the performance of this patch with the fio benchmarking tool, increasing the number of queues results in a significant speedup for both read and write operations, demonstrating the effectiveness of multi-queue support. Host: - Dell PowerEdge R760 - CPU: Intel(R) Xeon(R) Gold 6438M, 128 cores - VM: KVM with 32 cores Virtio-fs device: - BlueField-3 DPU - CPU: ARM Cortex-A78AE, 16 cores - One thread per queue, each busy polling on one request queue - Each queue is 1024 descriptors deep Workload: - fio, sequential read or write, ioengine=libaio, numjobs=32, 4GiB file per job, iodepth=8, bs=256KiB, runtime=30s Performance Results: +===========================+==========+===========+ | Number of queues | Fio read | Fio write | +===========================+==========+===========+ | 1 request queue (GiB/s) | 6.1 | 4.6 | +---------------------------+----------+-----------+ | 8 request queues (GiB/s) | 25.8 | 10.3 | +---------------------------+----------+-----------+ | 16 request queues (GiB/s) | 30.9 | 19.5 | +---------------------------+----------+-----------+ | 32 request queue (GiB/s) | 33.2 | 22.6 | +---------------------------+----------+-----------+ | Speedup | 5.5x | 5x | +---------------=-----------+----------+-----------+ Signed-off-by: Peter-Jan Gootzen <pgootzen@nvidia.com> Signed-off-by: Yoray Zack <yorayz@nvidia.com> Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2024-05-10virtio-fs: limit number of request queuesPeter-Jan Gootzen
Virtio-fs devices might allocate significant resources to virtio queues such as CPU cores that busy poll on the queue. The device indicates how many request queues it can support and the driver should initialize the number of queues that they want to utilize. In this patch we limit the number of initialized request queues to the number of CPUs, to limit the resource consumption on the device-side and to prepare for the upcoming multi-queue patch. Signed-off-by: Peter-Jan Gootzen <pgootzen@nvidia.com> Signed-off-by: Yoray Zack <yorayz@nvidia.com> Suggested-by: Max Gurtovoy <mgurtovoy@nvidia.com> Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2024-05-10ASoC: Intel: updates for 6.10 - part7Mark Brown
Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>: This patchset should be the last batch for this kernel cycle! Brent Lu continued his cleanups to refactor and use fewer machine drivers on Chrmebooks. Bard Liao updated the sof-sdw machine driver to deal with UCM support of the RT712 configuration. Note that this sof-sdw driver will be refactored in the next kernel cycle to allow AMD and others to reuse common SoundWire parts that are not Intel-specific. Initial changes are described here: https://github.com/thesofproject/linux/pull/4967
2024-05-10ovl: remove duplicate included headerThorsten Blum
Remove duplicate included header file linux/posix_acl.h Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2024-05-10arm64: errata: Add workaround for Arm errata 3194386 and 3312417Mark Rutland
Cortex-X4 and Neoverse-V3 suffer from errata whereby an MSR to the SSBS special-purpose register does not affect subsequent speculative instructions, permitting speculative store bypassing for a window of time. This is described in their Software Developer Errata Notice (SDEN) documents: * Cortex-X4 SDEN v8.0, erratum 3194386: https://developer.arm.com/documentation/SDEN-2432808/0800/ * Neoverse-V3 SDEN v6.0, erratum 3312417: https://developer.arm.com/documentation/SDEN-2891958/0600/ To workaround these errata, it is necessary to place a speculation barrier (SB) after MSR to the SSBS special-purpose register. This patch adds the requisite SB after writes to SSBS within the kernel, and hides the presence of SSBS from EL0 such that userspace software which cares about SSBS will manipulate this via prctl(PR_GET_SPECULATION_CTRL, ...). Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20240508081400.235362-5-mark.rutland@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2024-05-10arm64: cputype: Add Neoverse-V3 definitionsMark Rutland
Add cputype definitions for Neoverse-V3. These will be used for errata detection in subsequent patches. These values can be found in Table B-249 ("MIDR_EL1 bit descriptions") in issue 0001-04 of the Neoverse-V3 TRM, which can be found at: https://developer.arm.com/documentation/107734/0001/?lang=en Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20240508081400.235362-4-mark.rutland@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2024-05-10arm64: cputype: Add Cortex-X4 definitionsMark Rutland
Add cputype definitions for Cortex-X4. These will be used for errata detection in subsequent patches. These values can be found in Table B-249 ("MIDR_EL1 bit descriptions") in issue 0002-05 of the Cortex-X4 TRM, which can be found at: https://developer.arm.com/documentation/102484/0002/?lang=en Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20240508081400.235362-3-mark.rutland@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2024-05-10arm64: barrier: Restore spec_bar() macroMark Rutland
Upcoming errata workarounds will need to use SB from C code. Restore the spec_bar() macro so that we can use SB. This is effectively a revert of commit: 4f30ba1cce36d413 ("arm64: barrier: Remove spec_bar() macro") Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20240508081400.235362-2-mark.rutland@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2024-05-10Merge tag 'timers-v6.10-rc1' of ↵Thomas Gleixner
https://git.linaro.org/people/daniel.lezcano/linux into timers/core Pull clockevent/source updates from Daniel Lezcano: - Add the R9A09G057 compatible bindings in the DT documentation and add specific code to deal with the probe routine being called twice (Geert Uytterhoeven) - Remove unused field in the struct dmtimer in the TI driver (Christophe JAILLET) - Constify the hisi_161010101_oem_info variable in the ARM arch timer (Stephen Boyd) Link: https://lore.kernel.org/lkml/7ca1c46a-93e6-4f67-bee3-623cb56764fa@linaro.org
2024-05-10serial: Clear UPF_DEAD before calling tty_port_register_device_attr_serdev()Hans de Goede
If a serdev_device_driver is already loaded for a serdev_tty_port when it gets registered by tty_port_register_device_attr_serdev() then that driver's probe() method will be called immediately. The serdev_device_driver's probe() method should then be able to call serdev_device_open() successfully, but because UPF_DEAD is still dead serdev_device_open() will fail with -ENXIO in this scenario: serdev_device_open() ctrl->ops->open() /* this callback being ttyport_open() */ tty->ops->open() /* this callback being uart_open() */ tty_port_open() port->ops->activate() /* this callback being uart_port_activate() */ Find bit UPF_DEAD is set in uport->flags and fail with errno -ENXIO. Fix this be clearing UPF_DEAD before tty_port_register_device_attr_serdev() note this only moves up the UPD_DEAD clearing a small bit, before: tty_port_register_device_attr_serdev(); mutex_unlock(&tty_port.mutex); uart_port.flags &= ~UPF_DEAD; mutex_unlock(&port_mutex); after: uart_port.flags &= ~UPF_DEAD; tty_port_register_device_attr_serdev(); mutex_unlock(&tty_port.mutex); mutex_unlock(&port_mutex); Reported-by: Weifeng Liu <weifeng.liu.z@gmail.com> Closes: https://lore.kernel.org/platform-driver-x86/20240505130800.2546640-1-weifeng.liu.z@gmail.com/ Tested-by: Weifeng Liu <weifeng.liu.z@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20240509141549.63704-1-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-05-10serial: imx: Raise TX trigger level to 8Matthias Schiffer
At the default TX trigger level of 2 in non-DMA mode (meaning that an interrupt is generated when less than 2 characters are left in the FIFO), we have observed frequent buffer underruns at 115200 Baud on an i.MX8M Nano. This can cause communication issues if the receiving side expects a continuous transfer. Increasing the level to 8 makes the UART trigger an interrupt earlier, giving the kernel enough time to refill the FIFO, at the cost of triggering one interrupt per ~24 instead of ~30 bytes of transmitted data (as the i.MX UART has a 32 byte FIFO). Signed-off-by: Michael Krummsdorf <michael.krummsdorf@tq-group.com> Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Link: https://lore.kernel.org/r/20240508133744.35858-1-matthias.schiffer@ew.tq-group.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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