- Fix an out-of-bounds access on non-hybrid platforms in the
Intel PMU DS code, reported by KASAN.
- Add WildcatLake PMU and uncore support: it's identical to the
PantherLake version.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2025-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf event fixes from Ingo Molnar:
"Miscellaneous fixes and CPU model updates:
- Fix an out-of-bounds access on non-hybrid platforms in the Intel
PMU DS code, reported by KASAN
- Add WildcatLake PMU and uncore support: it's identical to the
PantherLake version"
* tag 'perf-urgent-2025-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Add uncore PMU support for Wildcat Lake
perf/x86/intel: Add PMU support for WildcatLake
perf/x86/intel: Fix KASAN global-out-of-bounds warning
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-6.18-rc4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
"Just a single bug fix (and documentation for the issue)"
* tag 'xfs-fixes-6.18-rc4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: document another racy GC case in xfs_zoned_map_extent
xfs: prevent gc from picking the same zone twice
- Formally adopt Kconfig in MAINTAINERS
- Fix install-extmod-build for more O= paths
- Align end of .modinfo to fix Authenticode calculation in EDK2
- Restore dynamic check for '-fsanitize=kernel-memory' in
CONFIG_HAVE_KMSAN_COMPILER to ensure backend target has support for
it
- Initialize locale in menuconfig and nconfig to fix UTF-8 terminals
that may not support VT100 ACS by default like PuTTY
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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Merge tag 'kbuild-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nathan Chancellor:
- Formally adopt Kconfig in MAINTAINERS
- Fix install-extmod-build for more O= paths
- Align end of .modinfo to fix Authenticode calculation in EDK2
- Restore dynamic check for '-fsanitize=kernel-memory' in
CONFIG_HAVE_KMSAN_COMPILER to ensure backend target has support
for it
- Initialize locale in menuconfig and nconfig to fix UTF-8 terminals
that may not support VT100 ACS by default like PuTTY
* tag 'kbuild-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kconfig/nconf: Initialize the default locale at startup
kconfig/mconf: Initialize the default locale at startup
KMSAN: Restore dynamic check for '-fsanitize=kernel-memory'
kbuild: align modinfo section for Secureboot Authenticode EDK2 compat
kbuild: install-extmod-build: Fix when given dir outside the build dir
MAINTAINERS: Update Kconfig section
To pick the changes from:
e19c062199 ("x86/cpufeatures: Add support for Assignable Bandwidth Monitoring Counters (ABMC)")
7b59c73fd6 ("x86/cpufeatures: Add SNP Secure TSC")
3c7cb84145 ("x86/cpufeatures: Add a CPU feature bit for MSR immediate form instructions")
2f8f173413 ("x86/vmscape: Add conditional IBPB mitigation")
a508cec6e5 ("x86/vmscape: Enumerate VMSCAPE bug")
This causes these perf files to be rebuilt and brings some X86_FEATURE
that may be used by:
CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o
And addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Please see tools/include/uapi/README for further details.
Cc: Babu Moger <babu.moger@amd.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Nikunj A Dadhania <nikunj@amd.com>
Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Xin Li <xin@zytor.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the changes in this cset:
56101b69c9 ("uprobes/x86: Add uprobe syscall to speed up uprobe")
That add support for this new 'uprobe' syscall in tools such as 'perf trace'.
Now it is possible to do a system wide 'perf trace' to look if this new
syscall is being used:
root@number:~# perf trace -v -e uprobe
<SNIP>
event qualifier tracepoint filter: (common_pid != 33989) && (id == 336)
^C
root@number#
$ grep -w uprobe tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
336 common uprobe sys_uprobe
$
This addresses these perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Please see tools/include/uapi/README for further details.
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the changes in this cset:
e83f0b5d10 ("nsfs: support exhaustive file handles")
That doesn't introduce anything of interest for tools/, just addresses
these perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/fcntl.h include/uapi/linux/fcntl.h
Please see tools/include/uapi/README for further details.
Cc: Christian Brauner <brauner@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the changes in these csets:
8cdc4d2701 ("mm/huge_memory: respect MADV_COLLAPSE with PR_THP_DISABLE_EXCEPT_ADVISED")
9dc21bbd62 ("prctl: extend PR_SET_THP_DISABLE to optionally exclude VM_HUGEPAGE")
That don't introduce anything of interest for the tools/, just
addressing these perf build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/prctl.h include/uapi/linux/prctl.h
Please see tools/include/uapi/README for further details.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reading large compressed files is extremely slow when readahead is enabled.
For example, reading a 4 GB XPRESS-4K compressed file (compression ratio
≈ 4:1) takes about 230 minutes with readahead enabled, but only around 3
minutes when readahead is disabled.
The issue was first observed in January 2025 and is reproducible with large
compressed NTFS files. Disabling readahead for compressed files avoids this
performance regression, although this may not be the ideal long-term fix.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
To pick up changes from:
db2ab24a34 ("Add RWF_NOSIGNAL flag for pwritev2")
These are used to beautify fs syscall arguments, albeit the changes in
this update are not affecting those beautifiers.
This addresses these tools/ build warnings:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/uapi/linux/fs.h include/uapi/linux/fs.h
Please see tools/include/uapi/README for details (it's in the first patch
of this series).
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Lauri Vasama <git@vasama.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Call pm_runtime_resume_and_get() before accessing GCE hardware in
mbox_send_message(), and invoke pm_runtime_put_autosuspend() in the
cmdq callback to release the PM reference and start autosuspend for
GCE. This ensures correct power management for the GCE device.
Fixes: 8afe816b0c ("mailbox: mtk-cmdq-mailbox: Implement Runtime PM with autosuspend")
Signed-off-by: Jason-JH Lin <jason-jh.lin@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20250829091727.3745415-3-jason-jh.lin@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
The list operation to find and pop transaction entry appears several
times in transaction implementation, and can be replaced with a helper
functional macro.
Link: https://lore.kernel.org/r/20251101102131.925071-3-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
If an insn->alt points to a STAC/CLAC instruction, skip_alt_group()
assumes it's part of an alternative ("alt group") as opposed to some
other kind of "alt" such as an exception fixup.
While that assumption may hold true in the current code base, Linus has
an out-of-tree patch which breaks that assumption by replacing the
STAC/CLAC alternatives with raw STAC/CLAC instructions.
Make skip_alt_group() more robust by making sure it's actually an alt
group before continuing.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes: 2d12c6fb78 ("objtool: Remove ANNOTATE_IGNORE_ALTERNATIVE from CLAC/STAC")
Closes: https://lore.kernel.org/CAHk-=wi6goUT36sR8GE47_P-aVrd5g38=VTRHpktWARbyE-0ow@mail.gmail.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://patch.msgid.link/3d22415f7b8e06a64e0873b21f48389290eeaa49.1761767616.git.jpoimboe@kernel.org
Fix bug where make nconfig doesn't initialize the default locale, which
causes ncurses menu borders to be displayed incorrectly (lqqqqk) in
UTF-8 terminals that don't support VT100 ACS by default, such as PuTTY.
Signed-off-by: Jakub Horký <jakub.git@horky.net>
Link: https://patch.msgid.link/20251014144405.3975275-2-jakub.git@horky.net
[nathan: Alphabetize locale.h include]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Fix bug where make menuconfig doesn't initialize the default locale, which
causes ncurses menu borders to be displayed incorrectly (lqqqqk) in
UTF-8 terminals that don't support VT100 ACS by default, such as PuTTY.
Signed-off-by: Jakub Horký <jakub.git@horky.net>
Link: https://patch.msgid.link/20251014154933.3990990-1-jakub.git@horky.net
[nathan: Alphabetize locale.h include]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
From XE3P we can now poll if the AUX power is up or down define the
timeouts for each respectively.
Bspec: 68967
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-25-suraj.kandpal@intel.com
We need to enable and disable the Tx for each active lane after the
Non-TBT enable sequence is done.
Bspec: 74500, 74497, 74701
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-21-suraj.kandpal@intel.com
Program LT Phy voltage swing using the Swing tables and plug in the
function at encoder->set_signal_level
Bspec: 74493
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-20-suraj.kandpal@intel.com
Hook up the LT Phy enable and disable sequences using encoder->
enable/disable_clock and reusing the TBT enable disable sequence from
cx0 PHY since it remains the same.
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-18-suraj.kandpal@intel.com
Program in the steps for Non TBT PLL disable sequence.
The whole function can be defined in one shot since most of
prequiste functions are already coded in.
Bspec: 74492
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-17-suraj.kandpal@intel.com
Program the rest of the LT Phy Non TBT PLL Enable sequence. This
can be done in a single patch since the rest of the prequistie
functions are already coded in.
Bspec: 74492, 69701
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-16-suraj.kandpal@intel.com
Program the LT PHY P2P transaction which uses P2M cycle to get
get data fro Phy when it is ready and then go read the MAC register
from the MAC address space.
Bspec: 68966, 74497, 74483, 74500
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-14-suraj.kandpal@intel.com
Create a reverse algorithm which is used to find port clock
from the LT PHY state is provided which is used for
comparision & verification functions.
Bspec: 74667
Signed-off-by: Nemesa Garg <nemesa.garg@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-13-suraj.kandpal@intel.com
We enable SSC when we program PORT_CLOCK_CTL register. We logically
determine if ssc is enabled or not while we calculate our state.
Bspec: 74492, 74667
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-12-suraj.kandpal@intel.com
When we get the eDP tables we reuse dp tables for some data rates.
We need to modify the 3rd config value of this table to 1 instead
of 0 since that is the only difference in the dp and edp table for
that particular data rate.
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-11-suraj.kandpal@intel.com
Fetch the tables which need to be used and program it in
the specified VDR register space. Everything is done over
the respective lanes.
Bspec: 68862, 74500
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-10-suraj.kandpal@intel.com
Add the LT Phy programming recipe tables for eDP, DP & HDMI and a
function to use the correct table.
Bspec: 74667
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-9-suraj.kandpal@intel.com
Read PHY_VDR_0_CONFIG to check if there is any change in the register and
decide based on that if P2P sequence to change the data rate of LT PHY
are required or not. This scenario only happens if the requested mode
uses 1.62Gbps with DP mode since LT PHY defaults to this mode if
any other mode is requested we need to follow the whole sequence.
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-8-suraj.kandpal@intel.com
Add a wrapper on cx0 powerdown change sequence for LT Phy usage,
as the sequence remains unchanged when going from SNPS Phy to
LT Phy.
Bspec: 74495
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-7-suraj.kandpal@intel.com
Program sequence from port clock ctl except for the SSC
enablement part which will be taken care of later.
Bspec: 74492
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-6-suraj.kandpal@intel.com
Define function to bring phy lane out of reset for LT Phy and the
corresponding pre-requisite steps before we follow the steps for
Phy lane reset. Also create a skeleton of LT PHY PLL enable sequence
function in which we can place this function
Bspec: 77449, 74749, 74499, 74495, 68960
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-4-suraj.kandpal@intel.com
Change the register bit naming for powerdown values from CX0 to
XELPDP so that it can be used with LT Phy too.
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patch.msgid.link/20251101032513.4171255-3-suraj.kandpal@intel.com
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
- Mark migrate_disable/enable() as always_inline to avoid issues with
partial inlining (Yonghong Song)
- Fix powerpc stack register definition in libbpf bpf_tracing.h (Andrii
Nakryiko)
- Reject negative head_room in __bpf_skb_change_head (Daniel Borkmann)
- Conditionally include dynptr copy kfuncs (Malin Jonsson)
- Sync pending IRQ work before freeing BPF ring buffer (Noorain Eqbal)
- Do not audit capability check in x86 do_jit() (Ondrej Mosnacek)
- Fix arm64 JIT of BPF_ST insn when it writes into arena memory
(Puranjay Mohan)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf/arm64: Fix BPF_ST into arena memory
bpf: Make migrate_disable always inline to avoid partial inlining
bpf: Reject negative head_room in __bpf_skb_change_head
bpf: Conditionally include dynptr copy kfuncs
libbpf: Fix powerpc's stack register definition in bpf_tracing.h
bpf: Do not audit capability check in do_jit()
bpf: Sync pending IRQ work before freeing ring buffer
ARCnet docs states that inquiries on the subsystem should be emailed to
Avery Pennarun <apenwarr@worldvisions.ca>, for whom has been in CREDITS
since the beginning of kernel git history and her email address is
unreachable (bounce). The subsystem is now maintained by Michael
Grzeschik since c38f6ac74c ("MAINTAINERS: add arcnet and take
maintainership").
In addition, there used to be a dedicated ARCnet mailing list but its
archive at epistolary.org has been shut down. ARCnet discussion nowadays
take place in netdev list. The arcnet.com domain mentioned has become
AIoT (Artificial Intelligence of Things) related Typeform page and
ARCnet info now resides on arcnet.cc (ARCnet Resource Center) instead.
Update contact information.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20251028014451.10521-2-bagasdotme@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ivan Vecera says:
====================
dpll: Add support for phase adjustment granularity
Phase-adjust values are currently limited only by a min-max range. Some
hardware requires, for certain pin types, that values be multiples of
a specific granularity, as in the zl3073x driver.
Patch 1: Adds 'phase-adjust-gran' pin attribute and an appropriate
handling
Patch 2: Adds a support for this attribute into zl3073x driver
====================
Link: https://patch.msgid.link/20251029153207.178448-1-ivecera@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Output pins phase adjustment values in the device are expressed
in half synth clock cycles. Use this number of cycles as output
pins' phase adjust granularity and simplify both get/set callbacks.
Reviewed-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Petr Oros <poros@redhat.com>
Tested-by: Prathosh Satish <Prathosh.Satish@microchip.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Link: https://patch.msgid.link/20251029153207.178448-3-ivecera@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Phase-adjust values are currently limited by a min-max range. Some
hardware requires, for certain pin types, that values be multiples of
a specific granularity, as in the zl3073x driver.
Add a `phase-adjust-gran` pin attribute and an appropriate field in
dpll_pin_properties. If set by the driver, use its value to validate
user-provided phase-adjust values.
Reviewed-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Petr Oros <poros@redhat.com>
Tested-by: Prathosh Satish <Prathosh.Satish@microchip.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Link: https://patch.msgid.link/20251029153207.178448-2-ivecera@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Thomas Wismer says:
====================
net: pse-pd: Add TPS23881B support
This patch series aims at adding support for the TI TPS23881B PoE
PSE controller.
====================
Link: https://patch.msgid.link/20251029212312.108749-1-thomas@wismer.xyz
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
