Since the shrinker-related code has been moved to a separate shrinker.c
file, it's time to add a MAINTAINERS entry for it.
Dave, Roman, Muchun and I have all worked on shrinker (development,
review, etc) in the past period of time, and all of us are willing to
continue working on shrinker in the future, so I'd like to add all of us
as maintainer/reviewer.
Link: https://lkml.kernel.org/r/20240111075219.34221-1-zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The kernel sefltest mm/hugepage-vmemmap fails on architectures which has
different page size other than 4K. In hugepage-vmemmap page size used is
4k so the pfn calculation will go wrong on systems which has different
page size .The length of MAP_HUGETLB memory must be hugepage aligned but
in hugepage-vmemmap map length is 2M so this will not get aligned if the
system has differnet hugepage size.
Added psize() to get the page size and default_huge_page_size() to
get the default hugepage size at run time, hugepage-vmemmap test pass
on powerpc with 64K page size and x86 with 4K page size.
Result on powerpc without patch (page size 64K)
*# ./hugepage-vmemmap
Returned address is 0x7effff000000 whose pfn is 0
Head page flags (100000000) is invalid
check_page_flags: Invalid argument
*#
Result on powerpc with patch (page size 64K)
*# ./hugepage-vmemmap
Returned address is 0x7effff000000 whose pfn is 600
*#
Result on x86 with patch (page size 4K)
*# ./hugepage-vmemmap
Returned address is 0x7fc7c2c00000 whose pfn is 1dac00
*#
Link: https://lkml.kernel.org/r/3b3a3ae37ba21218481c482a872bbf7526031600.1704865754.git.donettom@linux.vnet.ibm.com
Fixes: b147c89cd4 ("selftests: vm: add a hugetlb test case")
Signed-off-by: Donet Tom <donettom@linux.vnet.ibm.com>
Reported-by: Geetika Moolchandani <geetika@linux.ibm.com>
Tested-by: Geetika Moolchandani <geetika@linux.ibm.com>
Acked-by: Muchun Song <muchun.song@linux.dev>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
set_memmap_mode() stores the kernel parameter memmap mode as an integer.
However, the get_memmap_mode() function utilizes param_get_bool() to fetch
the value as a boolean, leading to potential endianness issue. On
Big-endian architectures, the memmap_on_memory is consistently displayed
as 'N' regardless of its actual status.
To address this endianness problem, the solution involves obtaining the
mode as an integer. This adjustment ensures the proper display of the
memmap_on_memory parameter, presenting it as one of the following options:
Force, Y, or N.
Link: https://lkml.kernel.org/r/20240110140127.241451-1-sumanthk@linux.ibm.com
Fixes: 2d1f649c7c ("mm/memory_hotplug: support memmap_on_memory when memmap is not aligned to pageblocks")
Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Suggested-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: <stable@vger.kernel.org> [6.6+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Access to the tanzirh@google.com email will be revoked upon the end of the
internship.
Link: https://lkml.kernel.org/r/20240105-newemail-v3-1-3dc8ae035b54@google.com
Signed-off-by: Tanzir Hasan <tanzirh@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Add my old email addresses so that git send-email will map them
to my current email address.
Link: https://lkml.kernel.org/r/20240106063051.13623-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
sparse warnings:
kernel/crash_core.c:749:1: sparse: sparse: symbol '__crash_hotplug_lock' was not declared. Should it be static?
Fixes: e2a8f20dd8 ("Crash: add lock to serialize crash hotplug handling")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401080654.IjjU5oK7-lkp@intel.com/
Cc: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
If the system has no mirrored memory or uses crashkernel.high while
kernelcore=mirror is enabled on the command line then during crashkernel,
there will be limited mirrored memory and this usually leads to OOM.
To solve this problem, disable the mirror feature during crashkernel.
Link: https://lkml.kernel.org/r/20240109041536.3903042-1-mawupeng1@huawei.com
Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
syscore_shutdown() runs driver and module callbacks to get the system into
a state where it can be correctly shut down. In commit 6f389a8f1d ("PM
/ reboot: call syscore_shutdown() after disable_nonboot_cpus()")
syscore_shutdown() was removed from kernel_restart_prepare() and hence got
(incorrectly?) removed from the kexec flow. This was innocuous until
commit 6735150b69 ("KVM: Use syscore_ops instead of reboot_notifier to
hook restart/shutdown") changed the way that KVM registered its shutdown
callbacks, switching from reboot notifiers to syscore_ops.shutdown. As
syscore_shutdown() is missing from kexec, KVM's shutdown hook is not run
and virtualisation is left enabled on the boot CPU which results in triple
faults when switching to the new kernel on Intel x86 VT-x with VMXE
enabled.
Fix this by adding syscore_shutdown() to the kexec sequence. In terms of
where to add it, it is being added after migrating the kexec task to the
boot CPU, but before APs are shut down. It is not totally clear if this
is the best place: in commit 6f389a8f1d ("PM / reboot: call
syscore_shutdown() after disable_nonboot_cpus()") it is stated that
"syscore_ops operations should be carried with one CPU on-line and
interrupts disabled." APs are only offlined later in machine_shutdown(),
so this syscore_shutdown() is being run while APs are still online. This
seems to be the correct place as it matches where syscore_shutdown() is
run in the reboot and halt flows - they also run it before APs are shut
down. The assumption is that the commit message in commit 6f389a8f1d
("PM / reboot: call syscore_shutdown() after disable_nonboot_cpus()") is
no longer valid.
KVM has been discussed here as it is what broke loudly by not having
syscore_shutdown() in kexec, but this change impacts more than just KVM;
all drivers/modules which register a syscore_ops.shutdown callback will
now be invoked in the kexec flow. Looking at some of them like x86 MCE it
is probably more correct to also shut these down during kexec.
Maintainers of all drivers which use syscore_ops.shutdown are added on CC
for visibility. They are:
arch/powerpc/platforms/cell/spu_base.c .shutdown = spu_shutdown,
arch/x86/kernel/cpu/mce/core.c .shutdown = mce_syscore_shutdown,
arch/x86/kernel/i8259.c .shutdown = i8259A_shutdown,
drivers/irqchip/irq-i8259.c .shutdown = i8259A_shutdown,
drivers/irqchip/irq-sun6i-r.c .shutdown = sun6i_r_intc_shutdown,
drivers/leds/trigger/ledtrig-cpu.c .shutdown = ledtrig_cpu_syscore_shutdown,
drivers/power/reset/sc27xx-poweroff.c .shutdown = sc27xx_poweroff_shutdown,
kernel/irq/generic-chip.c .shutdown = irq_gc_shutdown,
virt/kvm/kvm_main.c .shutdown = kvm_shutdown,
This has been tested by doing a kexec on x86_64 and aarch64.
Link: https://lkml.kernel.org/r/20231213064004.2419447-1-jgowans@amazon.com
Fixes: 6735150b69 ("KVM: Use syscore_ops instead of reboot_notifier to hook restart/shutdown")
Signed-off-by: James Gowans <jgowans@amazon.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Samuel Holland <samuel@sholland.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Orson Zhai <orsonzhai@gmail.com>
Cc: Alexander Graf <graf@amazon.de>
Cc: Jan H. Schoenherr <jschoenh@amazon.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Remove the map for Linaro id as it is still in use and I want to use it
for submitting patches. Otherwise, git uses kernel.org as the author id
for patches created using Linaro id.
Link: https://lkml.kernel.org/r/20240109-update-mailmap-v1-1-bf7a39f15fb7@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Move mmu notification mechanism inside mm lock to prevent race condition
in other components which depend on it. The notifier will invalidate
memory range. Depending upon the number of iterations, different memory
ranges would be invalidated.
The following warning would be removed by this patch:
WARNING: CPU: 0 PID: 5067 at arch/x86/kvm/../../../virt/kvm/kvm_main.c:734 kvm_mmu_notifier_change_pte+0x860/0x960 arch/x86/kvm/../../../virt/kvm/kvm_main.c:734
There is no behavioural and performance change with this patch when
there is no component registered with the mmu notifier.
[akpm@linux-foundation.org: narrow the scope of `range', per Sean]
Link: https://lkml.kernel.org/r/20240109112445.590736-1-usama.anjum@collabora.com
Fixes: 52526ca7fd ("fs/proc/task_mmu: implement IOCTL to get and optionally clear info about PTEs")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reported-by: syzbot+81227d2bd69e9dedb802@syzkaller.appspotmail.com
Link: https://lore.kernel.org/all/000000000000f6d051060c6785bc@google.com/
Reviewed-by: Sean Christopherson <seanjc@google.com>
Cc: Andrei Vagin <avagin@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Yosry, Nhat and I have been doing most of the recent development and
reviewing of changes in this space.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Nhat Pham <nphamcs@gmail.com>
Acked-by: Yosry Ahmed <yosryahmed@google.com>
Acked-by: Dan Streetman <ddstreet@ieee.org>
Acked-by: Seth Jennings <sjenning@redhat.com>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
GNU's addr2line can have problems parsing a vmlinux built with LLVM,
particularly when LTO was used. In order to decode the traces correctly
this patch adds the ability to switch to LLVM's utilities readelf and
addr2line. The same approach is followed by Will in [1].
Before:
$ scripts/decode_stacktrace.sh vmlinux < kernel.log
[17716.240635] Call trace:
[17716.240646] skb_cow_data (??:?)
[17716.240654] esp6_input (ld-temp.o:?)
[17716.240666] xfrm_input (ld-temp.o:?)
[17716.240674] xfrm6_rcv (??:?)
[...]
After:
$ LLVM=1 scripts/decode_stacktrace.sh vmlinux < kernel.log
[17716.240635] Call trace:
[17716.240646] skb_cow_data (include/linux/skbuff.h:2172 net/core/skbuff.c:4503)
[17716.240654] esp6_input (net/ipv6/esp6.c:977)
[17716.240666] xfrm_input (net/xfrm/xfrm_input.c:659)
[17716.240674] xfrm6_rcv (net/ipv6/xfrm6_input.c:172)
[...]
Note that one could set CROSS_COMPILE=llvm- instead to hack around this
issue. However, doing so can break the decodecode routine as it will
force the selection of other LLVM utilities down the line e.g. llvm-as.
[1] https://lore.kernel.org/all/20230914131225.13415-3-will@kernel.org/
Link: https://lkml.kernel.org/r/20230929034836.403735-1-cmllamas@google.com
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Elliot Berman <quic_eberman@quicinc.com>
Tested-by: Justin Stitt <justinstitt@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: John Stultz <jstultz@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Tom Rix <trix@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
With commit 63b85ac56a ("kasan: stop leaking stack trace handles"),
KASAN zeroes out alloc meta when an object is freed. The zeroed out data
purposefully includes alloc and auxiliary stack traces but also
accidentally includes aux_lock.
As aux_lock is only initialized for each object slot during slab creation,
when the freed slot is reallocated, saving auxiliary stack traces for the
new object leads to lockdep reports when taking the zeroed out aux_lock.
Arguably, we could reinitialize aux_lock when the object is reallocated,
but a simpler solution is to avoid zeroing out aux_lock when an object
gets freed.
Link: https://lkml.kernel.org/r/20240109221234.90929-1-andrey.konovalov@linux.dev
Fixes: 63b85ac56a ("kasan: stop leaking stack trace handles")
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reported-by: Paul E. McKenney <paulmck@kernel.org>
Closes: https://lore.kernel.org/linux-next/5cc0f83c-e1d6-45c5-be89-9b86746fe731@paulmck-laptop/
Reviewed-by: Marco Elver <elver@google.com>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
pahole, which generates BTF, relies on elfutils to process DWARF debug
info. Because kernel modules are relocatable files, elfutils needs to
resolve relocations when processing the DWARF .debug sections.
Hexagon is not supported in binutils or elfutils, so elfutils is unable to
process relocations in kernel modules, causing pahole to crash during BTF
generation.
Do not allow CONFIG_DEBUG_INFO_BTF to be selected for Hexagon until it is
supported in elfutils, so that there are no more cryptic build failures
during BTF generation.
Link: https://lkml.kernel.org/r/20240105-hexagon-disable-btf-v1-1-ddab073e7f74@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312192107.wMIKiZWw-lkp@intel.com/
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Brian Cain <bcain@quicinc.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
There are more people with git push permissions, but we keep only people
who actually did review and merge patches last year.
Link: https://lkml.kernel.org/r/20240104154953.1193634-1-pvorel@suse.cz
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Li Wang <liwang@redhat.com>
Cc: Alexey Kodanev <aleksei.kodanev@bell-sw.com>
Cc: Jan Stancek <jstancek@redhat.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Wanlong Gao <wanlong.gao@gmail.com>
Cc: Yang Xu <xuyang2018.jy@fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This contains a bunch of cleanups and simplifications across the board,
as well as a number of small fixes.
Perhaps the most notable change here is the addition of an API that
allows PWMs to be used in atomic contexts, which is useful when time-
critical operations are involved, such as using a PWM to generate IR
signals.
Finally, I have decided to step down as PWM subsystem maintainer. Due to
other responsibilities I have lately not been able to find the time that
the subsystem deserves and Uwe, who has been helping out a lot for the
past few years and has many things planned for the future, has kindly
volunteered to take over. I have no doubt that he will be a suitable
replacement.
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Merge tag 'pwm/for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"This contains a bunch of cleanups and simplifications across the
board, as well as a number of small fixes.
Perhaps the most notable change here is the addition of an API that
allows PWMs to be used in atomic contexts, which is useful when time-
critical operations are involved, such as using a PWM to generate IR
signals.
Finally, I have decided to step down as PWM subsystem maintainer. Due
to other responsibilities I have lately not been able to find the time
that the subsystem deserves and Uwe, who has been helping out a lot
for the past few years and has many things planned for the future, has
kindly volunteered to take over. I have no doubt that he will be a
suitable replacement"
* tag 'pwm/for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (44 commits)
MAINTAINERS: pwm: Thierry steps down, Uwe takes over
pwm: linux/pwm.h: fix Excess kernel-doc description warning
pwm: Add pwm_apply_state() compatibility stub
pwm: cros-ec: Drop documentation for dropped struct member
pwm: Drop two unused API functions
pwm: lpc18xx-sct: Don't modify the cached period of other PWM outputs
pwm: meson: Simplify using dev_err_probe()
pwm: stmpe: Silence duplicate error messages
pwm: Reduce number of pointer dereferences in pwm_device_request()
pwm: crc: Use consistent variable naming for driver data
pwm: omap-dmtimer: Drop locking
dt-bindings: pwm: ti,pwm-omap-dmtimer: Update binding for yaml
media: pwm-ir-tx: Trigger edges from hrtimer interrupt context
pwm: bcm2835: Allow PWM driver to be used in atomic context
pwm: Make it possible to apply PWM changes in atomic context
pwm: renesas: Remove unused include
pwm: Replace ENOTSUPP with EOPNOTSUPP
pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()
pwm: Stop referencing pwm->chip
pwm: Update kernel doc for struct pwm_chip
...
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Merge tag 'hid-for-linus-2024010801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- assorted functional fixes for hid-steam ported from SteamOS betas
(Vicki Pfau)
- fix for custom sensor-hub sensors (hinge angle sensor and LISS
sensors) not working (Yauhen Kharuzhy)
- functional fix for handling Confidence in Wacom driver (Jason
Gerecke)
- support for Ilitek ili2901 touchscreen (Zhengqiao Xia)
- power management fix for Wacom userspace battery exporting
(Tatsunosuke Tobita)
- rework of wait-for-reset in order to reduce the need for
I2C_HID_QUIRK_NO_IRQ_AFTER_RESET qurk; the success rate is now 50%
better, but there are still further improvements to be made (Hans de
Goede)
- greatly improved coverage of Tablets in hid-selftests (Benjamin
Tissoires)
- support for Nintendo NSO controllers -- SNES, Genesis and N64 (Ryan
McClelland)
- support for controlling mcp2200 GPIOs (Johannes Roith)
- power management improvement for EHL OOB wakeup in intel-ish
(Kai-Heng Feng)
- other assorted device-specific fixes and code cleanups
* tag 'hid-for-linus-2024010801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (53 commits)
HID: amd_sfh: Add a new interface for exporting ALS data
HID: amd_sfh: Add a new interface for exporting HPD data
HID: amd_sfh: rename float_to_int() to amd_sfh_float_to_int()
HID: i2c-hid: elan: Add ili2901 timing
dt-bindings: HID: i2c-hid: elan: Introduce Ilitek ili2901
HID: bpf: make bus_type const in struct hid_bpf_ops
HID: make ishtp_cl_bus_type const
HID: make hid_bus_type const
HID: hid-steam: Add gamepad-only mode switched to by holding options
HID: hid-steam: Better handling of serial number length
HID: hid-steam: Update list of identifiers from SDL
HID: hid-steam: Make client_opened a counter
HID: hid-steam: Clean up locking
HID: hid-steam: Disable watchdog instead of using a heartbeat
HID: hid-steam: Avoid overwriting smoothing parameter
HID: magicmouse: fix kerneldoc for struct magicmouse_sc
HID: sensor-hub: Enable hid core report processing for all devices
HID: wacom: Add additional tests of confidence behavior
HID: wacom: Correct behavior when processing some confidence == false touches
HID: nintendo: add support for nso controllers
...
- Remove intelfb fbdev driver (Thomas Zimmermann)
- Remove amba-clcd fbdev driver (Linus Walleij)
- Remove vmlfb Carillo Ranch fbdev driver (Matthew Wilcox)
- fb_deferred_io flushing fixes (Nam Cao)
- imxfb code fixes and cleanups (Dario Binacchi)
- stifb primary screen detection cleanups (Thomas Zimmermann)
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Merge tag 'fbdev-for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev updates from Helge Deller:
"Three fbdev drivers (~8500 lines of code) removed. The Carillo Ranch
fbdev driver is for an Intel product which was never shipped, and for
the intelfb and the amba-clcd drivers the drm drivers can be used
instead.
The other code changes are minor: some fb_deferred_io flushing fixes,
imxfb margin fixes and stifb cleanups.
Summary:
- Remove intelfb fbdev driver (Thomas Zimmermann)
- Remove amba-clcd fbdev driver (Linus Walleij)
- Remove vmlfb Carillo Ranch fbdev driver (Matthew Wilcox)
- fb_deferred_io flushing fixes (Nam Cao)
- imxfb code fixes and cleanups (Dario Binacchi)
- stifb primary screen detection cleanups (Thomas Zimmermann)"
* tag 'fbdev-for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: (28 commits)
fbdev/intelfb: Remove driver
fbdev/hyperv_fb: Do not clear global screen_info
firmware/sysfb: Clear screen_info state after consuming it
fbdev/hyperv_fb: Remove firmware framebuffers with aperture helpers
drm/hyperv: Remove firmware framebuffers with aperture helper
fbdev/sis: Remove dependency on screen_info
video/logo: use %u format specifier for unsigned int values
video/sticore: Remove info field from STI struct
arch/parisc: Detect primary video device from device instance
fbdev/stifb: Allocate fb_info instance with framebuffer_alloc()
video/sticore: Store ROM device in STI struct
fbdev: flush deferred IO before closing
fbdev: flush deferred work in fb_deferred_io_fsync()
fbdev: amba-clcd: Delete the old CLCD driver
fbdev: Remove support for Carillo Ranch driver
fbdev: hgafb: fix kernel-doc comments
fbdev: mmp: Fix typo and wording in code comment
fbdev: fsl-diu-fb: Fix sparse warning due to virt_to_phys() prototype change
fbdev: imxfb: add '*/' on a separate line in block comment
fbdev: imxfb: use __func__ for function name
...
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Merge tag 'media/v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- v4l core: subdev frame interval now supports which field
- v4l kapi: moves and renames the init_cfg pad op to init_state as an
internal op.
- new sensor drivers: gc0308, gc2145, Avnet Alvium, ov64a40, tw9900
- new camera driver: STM32 DCMIPP
- s5p-mfc has gained MFC v12 support
- new ISP driver added to staging: Starfive
- new stateful encoder/decoded: Wave5 codec It is found on the J721S2
SoC, JH7100 SoC, ssd202d SoC. Etc.
- fwnode gained support for MIPI "DisCo for Imaging"
(https://www.mipi.org/specifications/mipi-disco-imaging)
- as usual, lots of cleanups, fixups and driver improvements.
* tag 'media/v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (309 commits)
media: i2c: thp7312: select CONFIG_FW_LOADER
media: i2c: mt9m114: use fsleep() in place of udelay()
media: videobuf2: core: Rename min_buffers_needed field in vb2_queue
media: i2c: thp7312: Store frame interval in subdev state
media: docs: uAPI: Fix documentation of 'which' field for routing ioctls
media: docs: uAPI: Expand error documentation for invalid 'which' value
media: docs: uAPI: Clarify error documentation for invalid 'which' value
media: v4l2-subdev: Store frame interval in subdev state
media: v4l2-subdev: Add which field to struct v4l2_subdev_frame_interval
media: v4l2-subdev: Turn .[gs]_frame_interval into pad operations
media: v4l: subdev: Move out subdev state lock macros outside CONFIG_MEDIA_CONTROLLER
media: s5p-mfc: DPB Count Independent of VIDIOC_REQBUF
media: s5p-mfc: Load firmware for each run in MFCv12.
media: s5p-mfc: Set context for valid case before calling try_run
media: s5p-mfc: Add support for DMABUF for encoder
media: s5p-mfc: Add support for UHD encoding.
media: s5p-mfc: Add support for rate controls in MFCv12
media: s5p-mfc: Add YV12 and I420 multiplanar format support
media: s5p-mfc: Add initial support for MFCv12
media: s5p-mfc: Rename IS_MFCV10 macro
...
- updates to deprecated and changed interfaces
- use new cleanup.h features
- use new ida interface
- kdoc fixes
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Merge tag 'libnvdimm-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Ira Weiny:
"A mix of bug fixes and updates to interfaces used by nvdimm:
- Updates to interfaces include:
Use the new scope based management
Remove deprecated ida interfaces
Update to sysfs_emit()
- Fixup kdoc comments"
* tag 'libnvdimm-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
acpi/nfit: Use sysfs_emit() for all attributes
nvdimm/namespace: fix kernel-doc for function params
nvdimm/dimm_devs: fix kernel-doc for function params
nvdimm/btt: fix btt_blk_cleanup() kernel-doc
nvdimm-btt: simplify code with the scope based resource management
nvdimm: Remove usage of the deprecated ida_simple_xx() API
ACPI: NFIT: Use cleanup.h helpers instead of devm_*()
- Don't force a retune before eMMC RPMB switch
- Add optional HS400 tuning in HS400es initialization
- Add a sysfs node to for write-protect-group-size
- Add re-tuning test to the mmc-test module
- Use mrq.sbc to support close-ended ioctl requests
MMC host:
- mmci: Add support for SDIO in-band irqs for the stm32 variant
- mmc_spi: Remove broken support custom DMA mapped buffers
- mtk-sd: Improve and extend the support for tunings
- renesas_sdhi: Document support for the RZ/Five variant
- sdhci_am654: Drop support for the ti,otap-del-sel DT property
- sdhci-brcmstb: Add support for the brcm 74165b0 variant
- sdhci-msm: Add compatibles for IPQ4019 and IPQ8074
- sdhci-of-dwcmshc: Add support for the T-Head TH1520 variant
- sdhci-xenon: Add support for the Marvell ac5 variant
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Merge tag 'mmc-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Don't force a retune before eMMC RPMB switch
- Add optional HS400 tuning in HS400es initialization
- Add a sysfs node to for write-protect-group-size
- Add re-tuning test to the mmc-test module
- Use mrq.sbc to support close-ended ioctl requests
MMC host:
- mmci: Add support for SDIO in-band irqs for the stm32 variant
- mmc_spi: Remove broken support custom DMA mapped buffers
- mtk-sd: Improve and extend the support for tunings
- renesas_sdhi: Document support for the RZ/Five variant
- sdhci_am654: Drop support for the ti,otap-del-sel DT property
- sdhci-brcmstb: Add support for the brcm 74165b0 variant
- sdhci-msm: Add compatibles for IPQ4019 and IPQ8074
- sdhci-of-dwcmshc: Add support for the T-Head TH1520 variant
- sdhci-xenon: Add support for the Marvell ac5 variant"
* tag 'mmc-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (27 commits)
mmc: xenon: Add ac5 support via bounce buffer
dt-bindings: mmc: add Marvell ac5
mmc: sdhci-brcmstb: add new sdhci reset sequence for brcm 74165b0
dt-bindings: mmc: brcm,sdhci-brcmstb: Add support for 74165b0
mmc: core: Do not force a retune before RPMB switch
mmc: core: Add HS400 tuning in HS400es initialization
mmc: sdhci_omap: Fix TI SoC dependencies
mmc: sdhci_am654: Fix TI SoC dependencies
mmc: core: Add wp_grp_size sysfs node
mmc: mmc_test: Add re-tuning test
mmc: mmc_spi: remove custom DMA mapped buffers
dt-bindings: mmc: sdhci-msm: document dedicated IPQ4019 and IPQ8074
dt-bindings: mmc: synopsys-dw-mshc: add iommus for Intel SocFPGA
mmc: mtk-sd: Extend number of tuning steps
dt-bindings: mmc: mtk-sd: add tuning steps related property
mmc: sdhci-omap: don't misuse kernel-doc marker
mmc: mtk-sd: Increase the verbosity of msdc_track_cmd_data
mmc: core: Use mrq.sbc in close-ended ffu
mmc: sdhci_am654: Drop lookup for deprecated ti,otap-del-sel
mmc: sdhci-of-dwcmshc: Use logical OR instead of bitwise OR in dwcmshc_probe()
...
- Move the generic PM domain and its governor to the pmdomain subsystem
- Drop the unused pm_genpd_opp_to_performance_state()
Providers:
- Convert some providers to let the ->remove() callback return void
- amlogic: Add support for G12A ISP power domain
- arm: Move the SCPI power-domain driver to the pmdomain subsystem
- arm: Move Kconfig options to the pmdomain subsystem
- qcom: Update part number to X1E80100 for the rpmhpd
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Merge tag 'pmdomain-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain updates from Ulf Hansson:
"Core:
- Move the generic PM domain and its governor to the pmdomain
subsystem
- Drop the unused pm_genpd_opp_to_performance_state()
Providers:
- Convert some providers to let the ->remove() callback return void
- amlogic: Add support for G12A ISP power domain
- arm: Move the SCPI power-domain driver to the pmdomain subsystem
- arm: Move Kconfig options to the pmdomain subsystem
- qcom: Update part number to X1E80100 for the rpmhpd"
* tag 'pmdomain-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
PM: domains: Move genpd and its governor to the pmdomain subsystem
PM: domains: Drop redundant header for genpd
PM: domains: Drop the unused pm_genpd_opp_to_performance_state()
PM: domains: fix domain_governor kernel-doc warnings
pmdomain: xilinx/zynqmp: Convert to platform remove callback returning void
pmdomain: qcom-cpr: Convert to platform remove callback returning void
pmdomain: imx93-pd: Convert to platform remove callback returning void
pmdomain: imx93-blk-ctrl: Convert to platform remove callback returning void
pmdomain: imx8mp-blk-ctrl: Convert to platform remove callback returning void
pmdomain: imx8m-blk-ctrl: Convert to platform remove callback returning void
pmdomain: imx-gpcv2: Convert to platform remove callback returning void
pmdomain: imx-gpc: Convert to platform remove callback returning void
pmdomain: imx-pgc: Convert to platform remove callback returning void
pmdomain: amlogic: meson-ee-pwrc: add support for G12A ISP power domain
dt-bindings: power: meson-g12a-power: document ISP power domain
firmware: arm_scpi: Move power-domain driver to the pmdomain dir
pmdomain: arm_scmi: Move Kconfig options to the pmdomain subsystem
pmdomain: qcom: rpmhpd: Update part number to X1E80100
dt-bindings: power: rpmpd: Update part number to X1E80100
Small cycle, with some typical driver updates
- General code tidying in siw, hfi1, idrdma, usnic, hns rtrs and bnxt_re
- Many small siw cleanups without an overeaching theme
- Debugfs stats for hns
- Fix a TX queue timeout in IPoIB and missed locking of the mcast list
- Support more features of P7 devices in bnxt_re including a new work
submission protocol
- CQ interrupts for MANA
- netlink stats for erdma
- EFA multipath PCI support
- Fix Incorrect MR invalidation in iser
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"Small cycle, with some typical driver updates:
- General code tidying in siw, hfi1, idrdma, usnic, hns rtrs and
bnxt_re
- Many small siw cleanups without an overeaching theme
- Debugfs stats for hns
- Fix a TX queue timeout in IPoIB and missed locking of the mcast
list
- Support more features of P7 devices in bnxt_re including a new work
submission protocol
- CQ interrupts for MANA
- netlink stats for erdma
- EFA multipath PCI support
- Fix Incorrect MR invalidation in iser"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (66 commits)
RDMA/bnxt_re: Fix error code in bnxt_re_create_cq()
RDMA/efa: Add EFA query MR support
IB/iser: Prevent invalidating wrong MR
RDMA/erdma: Add hardware statistics support
RDMA/erdma: Introduce dma pool for hardware responses of CMDQ requests
IB/iser: iscsi_iser.h: fix kernel-doc warning and spellos
RDMA/mana_ib: Add CQ interrupt support for RAW QP
RDMA/mana_ib: query device capabilities
RDMA/mana_ib: register RDMA device with GDMA
RDMA/bnxt_re: Fix the sparse warnings
RDMA/bnxt_re: Fix the offset for GenP7 adapters for user applications
RDMA/bnxt_re: Share a page to expose per CQ info with userspace
RDMA/bnxt_re: Add UAPI to share a page with user space
IB/ipoib: Fix mcast list locking
RDMA/mlx5: Expose register c0 for RDMA device
net/mlx5: E-Switch, expose eswitch manager vport
net/mlx5: Manage ICM type of SW encap
RDMA/mlx5: Support handling of SW encap ICM area
net/mlx5: Introduce indirect-sw-encap ICM properties
RDMA/bnxt_re: Adds MSN table capability for Gen P7 adapters
...
This update includes the series of changes related to device attributes,
as well as slight code refactoring.
Some old devices are recognized to have legacy layout of configuration ROM.
They have an inconvenience that FireWire subsystem adds no attributes for
vendor information to corresponding devices. The main purpose of this
update is to rectify the inconvenience.
We have a slight concern about regression. The update changes the value of
modalias for the unit devices by populating its model field, which was
previously left as zero in the case. I've assessed the potential impact of
this change and anticipate it to have minimal concern for both the kernel
and user lands. The change is enough acceptable.
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Merge tag 'firewire-updates-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Takashi Sakamoto:
"This includes the series of changes related to device attributes, as
well as slight code refactoring.
Some old devices are recognized to have legacy layout of configuration
ROM. They have an inconvenience that FireWire subsystem adds no
attributes for vendor information to corresponding devices. The main
purpose of this update is to rectify the inconvenience.
We have a slight concern about regression. The update changes the
value of modalias for the unit devices by populating its model field,
which was previously left as zero in the case. I've assessed the
potential impact of this change and anticipate it to have minimal
concern for both the kernel and user lands. The change is enough
acceptable"
* tag 'firewire-updates-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: core: fill model field in modalias of unit device for legacy layout of configuration ROM
firewire: core: detect model name for legacy layout of configuration ROM
firewire: core: detect numeric model identifier for legacy layout of configuration ROM
firewire: test: add test of device attributes for legacy AV/C device
firewire: test: add test of device attributes for simple AV/C device
firewire: test: add KUnit test for device attributes
firewire: core: replace magic number with macro
firewire: core: adds constant qualifier for local helper functions
firewire: make fw_bus_type const
Here are the GNSS updates for 6.8-rc1, including:
- support for the reset pin found on some u-blox receivers
- use new regulator helper for the u-blox backup supply
All have been in linux-next with no reported issues.
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Merge tag 'gnss-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss
Pull GNSS updates from Johan Hovold:
- support for the reset pin found on some u-blox receivers
- use new regulator helper for the u-blox backup supply
* tag 'gnss-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss:
gnss: ubx: add support for the reset gpio
dt-bindings: gnss: u-blox: add "reset-gpios" binding
gnss: ubx: use new helper to remove open coded regulator handling
SM8650 based on the diffstat. Otherwise this is a collection of non-critical
fixes and cleanups to various clk drivers and their DT bindings. Nothing is
changed in the core clk framework this time, although there's a patch to fix a
basic clk type initialization function. In general, this pile looks to be on
the smaller side.
New Drivers:
- Global, display, gpu, tcsr, and rpmh clocks on Qualcomm SM8650
- Mediatek MT7988 SoC clocks
Updates:
- Update Zynqmp driver for Versal NET platforms
- Add clk driver for Versal clocking wizard IP
- Support for stm32mp25 clks
- Add glitch free PLL setting support to si5351 clk driver
- Add DSI clocks on Amlogic g12/sm1
- Add CSI and ISP clocks on Amlogic g12/sm1
- Document bindings for i.MX93 ANATOP clock driver
- Free clk_node in i.MX SCU driver for resource with different owner
- Update the LVDS clocks to be compatible with i.MX SCU firmware 1.15
- Fix the name of the fvco in i.MX pll14xx by renaming it to fout
- Add EtherNet TSN and PCIe clocks on the Renesas R-Car V4H SoC
- Add interrupt controller and Ethernet clocks and resets on Renesas RZ/G3S
- Check reset monitor registers on Renesas RZ/G2L-alike SoCs
- Reuse reset functionality in the Renesas RZ/G2L clock driver
- Global and RPMh clock support for the Qualcomm X1E80100 SoC
- Support for the Stromer APCS PLL found in Qualcomm IPQ5018
- Add a new type of branch clock, with support for controlling separate
memory control bits, to the Qualcomm clk driver
- Use above new branch type in Qualcomm ECPRI clk driver for QDU1000 and
QRU1000
- Add a number of missing clocks related to CSI2 on Qualcomm MSM8939
- Add support for the camera clock controller on Qualcomm SC8280XP
- Correct PLL configuration in GPU and video clock controllers for
Qualcomm SM8150
- Add runtime PM support and a few missing resets to Qualcomm SM8150
video clock controller
- Fix configuration of various GCC GDSCs on Qualcomm SM8550
- Mark shared RCGs appropriately in the Qualcomm SM8550 GCC driver
- Fix up GPU and display clock controllers PLL configuration settings
on Qualcomm SM8550
- Cleanup variable init in Allwinner nkm module
- Convert various DT bindings to YAML
- A few kernel-doc fixes for Samsung SoC clock controllers
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"Only a couple new SoCs have support added this time, primarily for
Qualcomm SM8650 based on the diffstat. Otherwise this is a collection
of non-critical fixes and cleanups to various clk drivers and their DT
bindings.
Nothing is changed in the core clk framework this time, although
there's a patch to fix a basic clk type initialization function. In
general, this pile looks to be on the smaller side.
New Drivers:
- Global, display, gpu, tcsr, and rpmh clocks on Qualcomm SM8650
- Mediatek MT7988 SoC clocks
Updates:
- Update Zynqmp driver for Versal NET platforms
- Add clk driver for Versal clocking wizard IP
- Support for stm32mp25 clks
- Add glitch free PLL setting support to si5351 clk driver
- Add DSI clocks on Amlogic g12/sm1
- Add CSI and ISP clocks on Amlogic g12/sm1
- Document bindings for i.MX93 ANATOP clock driver
- Free clk_node in i.MX SCU driver for resource with different owner
- Update the LVDS clocks to be compatible with i.MX SCU firmware 1.15
- Fix the name of the fvco in i.MX pll14xx by renaming it to fout
- Add EtherNet TSN and PCIe clocks on the Renesas R-Car V4H SoC
- Add interrupt controller and Ethernet clocks and resets on Renesas
RZ/G3S
- Check reset monitor registers on Renesas RZ/G2L-alike SoCs
- Reuse reset functionality in the Renesas RZ/G2L clock driver
- Global and RPMh clock support for the Qualcomm X1E80100 SoC
- Support for the Stromer APCS PLL found in Qualcomm IPQ5018
- Add a new type of branch clock, with support for controlling
separate memory control bits, to the Qualcomm clk driver
- Use above new branch type in Qualcomm ECPRI clk driver for QDU1000
and QRU1000
- Add a number of missing clocks related to CSI2 on Qualcomm MSM8939
- Add support for the camera clock controller on Qualcomm SC8280XP
- Correct PLL configuration in GPU and video clock controllers for
Qualcomm SM8150
- Add runtime PM support and a few missing resets to Qualcomm SM8150
video clock controller
- Fix configuration of various GCC GDSCs on Qualcomm SM8550
- Mark shared RCGs appropriately in the Qualcomm SM8550 GCC driver
- Fix up GPU and display clock controllers PLL configuration settings
on Qualcomm SM8550
- Cleanup variable init in Allwinner nkm module
- Convert various DT bindings to YAML
- A few kernel-doc fixes for Samsung SoC clock controllers"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (93 commits)
clk: mediatek: add drivers for MT7988 SoC
clk: mediatek: add pcw_chg_bit control for PLLs of MT7988
dt-bindings: clock: mediatek: add clock controllers of MT7988
dt-bindings: reset: mediatek: add MT7988 ethwarp reset IDs
dt-bindings: clock: mediatek: add MT7988 clock IDs
clk: mediatek: mt8188-topckgen: Refactor parents for top_dp/edp muxes
clk: mediatek: mt8195-topckgen: Refactor parents for top_dp/edp muxes
clk: mediatek: clk-mux: Support custom parent indices for muxes
dt-bindings: clock: sophgo: Add clock controller of CV1800 series SoC
clk: starfive: jh7100: Add CLK_SET_RATE_PARENT to gmac_tx
clk: starfive: Add flags argument to JH71X0__MUX macro
clk: imx: pll14xx: change naming of fvco to fout
clk: imx: clk-imx8qxp: fix LVDS bypass, pixel and phy clocks
clk: imx: scu: Fix memory leak in __imx_clk_gpr_scu()
clk: fixed-rate: fix clk_hw_register_fixed_rate_with_accuracy_parent_hw
clk: qcom: dispcc-sm8650: Add test_ctl parameters to PLL config
clk: qcom: gpucc-sm8650: Add test_ctl parameters to PLL config
clk: qcom: dispcc-sm8550: Use the correct PLL configuration function
clk: qcom: dispcc-sm8550: Update disp PLL settings
clk: qcom: gpucc-sm8550: Update GPU PLL settings
...
Core GPIOLIB:
- protect the global list of GPIO devices with a read-write semaphore as
it is rarely modified but can be traversed by multiple readers at once
- remove GPIO devices from the global list when they are *unregistered*
and not when they are *released* (which only happens when the last
reference is dropped) as this may lead to a successful lookup of an
unregistered device
- remove the unnecessary "extra_checks" switch
- rename functions that are called with a lock taken
- remove duplicate includes
Character device handling:
- use locking guards to reduce the code size
- allocate the big linereq structure using the more suitable kvzalloc()
- redulce the size of critical sections
- improve documentation
- move the debounce_period_us field out of struct gpio_desc
New drivers:
- Nuvoton NPCM SGPIO driver for BMC NPCM7xx/NPCM8xx
- Realtek DHC (Digital Home Center) SoC GPIO driver
Driver improvements:
- replace gpiochip_is_requested() with a safer alternative in the form of
gpiochip_dup_line_label() as the former returns a pointer to a string that
can be deleted
- implement the dbg_show() callback in gpio-sim
- improve the coding style for local variables by removing unnecessary tabs
- use generic device properties instead of OF variants in gpio-mmio
- use the preferred coding style for __free() in gpio-mockup
- reuse PM ops from the gpio-tangier in gpio-elkhartlake
- rework PM and use cleanup helpers in gpio-tangier
- fix the EIC configuration in gpio-pmic-eic-sprd
- remove the unneeded call to platform_set_drvdata() in gpio-sifive
- use generic GPIO helpers for driver callbacks in gpio-dwapb
- add clock support on certain pins of gpio-ixp4xx
- don't use the core-specific DEBUG_GPIO switch in drivers
- kerneldoc improvements
DT bindings:
- add bindings for the new Realtek and Nuvoton devices
- allow gpio-ranges in gpio-dwapb
- support GPIO hogs in gpio-rockchip
- describe the label property in gpio-zynqmp-modepin
Other:
- header cleanups
- forward declarations cleanups
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Merge tag 'gpio-updates-for-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have two new drivers, an assortment of updates and cleanups to many
others, and first part of the big rework of the core GPIOLIB that's
currently underway.
Add to that some code shrink in the character device module and
updates to DT bindings and that's pretty much it.
Core GPIOLIB:
- protect the global list of GPIO devices with a read-write semaphore
as it is rarely modified but can be traversed by multiple readers
at once
- remove GPIO devices from the global list when they are
*unregistered* and not when they are *released* (which only happens
when the last reference is dropped) as this may lead to a
successful lookup of an unregistered device
- remove the unnecessary "extra_checks" switch
- rename functions that are called with a lock taken
- remove duplicate includes
Character device handling:
- use locking guards to reduce the code size
- allocate the big linereq structure using the more suitable
kvzalloc()
- redulce the size of critical sections
- improve documentation
- move the debounce_period_us field out of struct gpio_desc
New drivers:
- Nuvoton NPCM SGPIO driver for BMC NPCM7xx/NPCM8xx
- Realtek DHC (Digital Home Center) SoC GPIO driver
Driver improvements:
- replace gpiochip_is_requested() with a safer alternative in the
form of gpiochip_dup_line_label() as the former returns a pointer
to a string that can be deleted
- implement the dbg_show() callback in gpio-sim
- improve the coding style for local variables by removing
unnecessary tabs
- use generic device properties instead of OF variants in gpio-mmio
- use the preferred coding style for __free() in gpio-mockup
- reuse PM ops from the gpio-tangier in gpio-elkhartlake
- rework PM and use cleanup helpers in gpio-tangier
- fix the EIC configuration in gpio-pmic-eic-sprd
- remove the unneeded call to platform_set_drvdata() in gpio-sifive
- use generic GPIO helpers for driver callbacks in gpio-dwapb
- add clock support on certain pins of gpio-ixp4xx
- don't use the core-specific DEBUG_GPIO switch in drivers
- kerneldoc improvements
DT bindings:
- add bindings for the new Realtek and Nuvoton devices
- allow gpio-ranges in gpio-dwapb
- support GPIO hogs in gpio-rockchip
- describe the label property in gpio-zynqmp-modepin
Other:
- header cleanups
- forward declarations cleanups"
* tag 'gpio-updates-for-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (55 commits)
gpiolib: replace the GPIO device mutex with a read-write semaphore
gpiolib: remove the GPIO device from the list when it's unregistered
gpio: nuvoton: Add Nuvoton NPCM sgpio driver
dt-bindings: gpio: add NPCM sgpio driver bindings
gpio: rtd: Add support for Realtek DHC(Digital Home Center) RTD SoCs
dt-bindings: gpio: realtek: Add realtek,rtd-gpio
gpio: pmic-eic-sprd: Configure the bit corresponding to the EIC through offset
gpio: dwapb: Use generic request, free and set_config
gpio: sysfs: drop tabs from local variable declarations
gpiolib: drop tabs from local variable declarations
gpiolib: remove extra_checks
gpio: tps65219: don't use CONFIG_DEBUG_GPIO
gpiolib: cdev: replace locking wrappers for gpio_device with guards
gpiolib: cdev: replace locking wrappers for config_mutex with guards
gpiolib: cdev: allocate linereq using kvzalloc()
gpiolib: cdev: include overflow.h
gpiolib: cdev: reduce locking in gpio_desc_to_lineinfo()
gpiolib: cdev: improve documentation of get/set values
gpiolib: cdev: fully adopt guard() and scoped_guard()
gpiolib: remove debounce_period_us from struct gpio_desc
...
- New drivers
* pmbus: Support for MPS Multi-phase mp2856/mp2857 controller
* pmbus: Support for MPS Multi-phase mp5990
* Driver for Gigabyte AORUS Waterforce AIO coolers
0c459759ca hwmon: (pmbus) Add ltc4286 driver
- Added support to existing drivers
* lm75: Support for AMS AS6200 temperature sensor
* k10temp: Support for AMD Family 19h Model 8h
* max31827: Support for max31828 and max31829
* sht3x: Support for sts3x
* Add support for WMI SMM interface, and various related improvements.
Add support for Optiplex 7000
* emc1403: Support for EMC1442
* npcm750-pwm-fan: Support for NPCM8xx
* nct6775: Add support for 2 additional fan controls
- Minor improvements and bug fixes
* gigabyte_waterforce: Mark status report as received under a spinlock
* aquacomputer_d5next: Remove unneeded CONFIG_DEBUG_FS #ifdef
* gpio-fan: Convert txt bindings to yaml
* smsc47m1: Various cleanups / improvements
* corsair-cpro: use NULL instead of 0
* hp-wmi-sensors: Fix failure to load on EliteDesk 800 G6
* tmp513: Various cleanups
* peci/dimmtemp: Bump timeout
* pc87360: Bounds check data->innr usage
* nct6775: Fix fan speed set failure in automatic mode
* ABI: sysfs-class-hwmon: document various missing attributes
* lm25066: Use i2c_get_match_data()
* nct6775: Use i2c_get_match_data(), and related fixes
* max6650: Use i2c_get_match_data()
* aspeed-pwm-tacho: Fix -Wstringop-overflow warning in aspeed_create_fan_tach_channel()
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Merge tag 'hwmon-for-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New drivers:
- pmbus: Support for MPS Multi-phase mp2856/mp2857 controller
- pmbus: Support for MPS Multi-phase mp5990
- Driver for Gigabyte AORUS Waterforce AIO coolers
Added support to existing drivers:
- lm75: Support for AMS AS6200 temperature sensor
- k10temp: Support for AMD Family 19h Model 8h
- max31827: Support for max31828 and max31829
- sht3x: Support for sts3x
- Add support for WMI SMM interface, and various related improvements.
Add support for Optiplex 7000
- emc1403: Support for EMC1442
- npcm750-pwm-fan: Support for NPCM8xx
- nct6775: Add support for 2 additional fan controls
Minor improvements and bug fixes:
- gigabyte_waterforce: Mark status report as received under a spinlock
- aquacomputer_d5next: Remove unneeded CONFIG_DEBUG_FS #ifdef
- gpio-fan: Convert txt bindings to yaml
- smsc47m1: Various cleanups / improvements
- corsair-cpro: use NULL instead of 0
- hp-wmi-sensors: Fix failure to load on EliteDesk 800 G6
- tmp513: Various cleanups
- peci/dimmtemp: Bump timeout
- pc87360: Bounds check data->innr usage
- nct6775: Fix fan speed set failure in automatic mode
- ABI: sysfs-class-hwmon: document various missing attributes
- lm25066, max6650, nct6775: Use i2c_get_match_data()
- aspeed-pwm-tacho: Fix -Wstringop-overflow warning"
* tag 'hwmon-for-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (59 commits)
hwmon: (gigabyte_waterforce) Mark status report as received under a spinlock
hwmon: (lm75) Fix tmp112 default config
hwmon: (lm75) Add AMS AS6200 temperature sensor
dt-bindings: hwmon: (lm75) Add AMS AS6200 temperature sensor
hwmon: (lm75) remove now-unused include
hwmon: (pmbus) Add support for MPS Multi-phase mp2856/mp2857 controller
dt-bindings: Add MP2856/MP2857 voltage regulator device
hwmon: (aquacomputer_d5next) Remove unneeded CONFIG_DEBUG_FS #ifdef
dt-bindings: hwmon: gpio-fan: Convert txt bindings to yaml
hwmon: (k10temp) Add support for AMD Family 19h Model 8h
hwmon: Add driver for Gigabyte AORUS Waterforce AIO coolers
hwmon: (smsc47m1) Rename global platform device variable
hwmon: (smsc47m1) Simplify device registration
hwmon: (smsc47m1) Convert to platform remove callback returning void
hwmon: (smsc47m1) Mark driver struct with __refdata to prevent section mismatch
MAINTAINERS: Add maintainer for Baikal-T1 PVT hwmon driver
hwmon: (sht3x) add sts3x support
hwmon: (pmbus) Add ltc4286 driver
dt-bindings: hwmon: Add lltc ltc4286 driver bindings
hwmon: (max31827) Add custom attribute for resolution
...
It was a clam development cycle. There were an ALSA core extension
for subformat PCM bits and a few ASoC core changes to support N:M
mappings, while the most of remaining changes are driver-specific.
Core:
- API extensions for properly limiting PCM format bits via subformat
- Enhanced support for N:M CPU:CODEC mappings in the core and in
audio-graph-card2
ASoC:
- Lots of SOF updates: fallback support to older IPC versions,
notification on control changes with IPC4.
Also supports for ACPI parse for the ES83xx driver that reduces
quirks.
- Device tree support for describing parts of the card which can be
active over suspend (for very low power playback or wake word use
cases)
- Support for more AMD and Intel systems, NXP i.MX8m MICFIL, Qualcomm
SM8250, SM8550, SM8650 and X1E80100
- Drop of Freescale MPC8610 code that is no longer supported
HD-audio:
- More CS35L41 codec extensions for Dell, HP and Lenovo models
- TAS2781 codec extensions for Lenovo and co
- New PCM subformat supports
Others:
- More enhancement for Scarlett2 USB mixer support
- Various kselftest fixes
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Merge tag 'sound-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It was a calm development cycle. There were an ALSA core extension for
subformat PCM bits and a few ASoC core changes to support N:M
mappings, while the most of remaining changes are driver-specific.
Core:
- API extensions for properly limiting PCM format bits via subformat
- Enhanced support for N:M CPU:CODEC mappings in the core and in
audio-graph-card2
ASoC:
- Lots of SOF updates: fallback support to older IPC versions,
notification on control changes with IPC4. Also supports for ACPI
parse for the ES83xx driver that reduces quirks.
- Device tree support for describing parts of the card which can be
active over suspend (for very low power playback or wake word use
cases)
- Support for more AMD and Intel systems, NXP i.MX8m MICFIL, Qualcomm
SM8250, SM8550, SM8650 and X1E80100
- Drop of Freescale MPC8610 code that is no longer supported
HD-audio:
- More CS35L41 codec extensions for Dell, HP and Lenovo models
- TAS2781 codec extensions for Lenovo and co
- New PCM subformat supports
Others:
- More enhancement for Scarlett2 USB mixer support
- Various kselftest fixes"
* tag 'sound-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (337 commits)
kselftest/alsa - conf: Stringify the printed errno in sysfs_get()
kselftest/alsa - mixer-test: Fix the print format specifier warning
kselftest/alsa - mixer-test: Fix the print format specifier warning
kselftest/alsa - mixer-test: fix the number of parameters to ksft_exit_fail_msg()
ALSA: hda/tas2781: annotate calibration data endianness
ALSA: hda/realtek: Fix mute and mic-mute LEDs for HP Envy X360 13-ay0xxx
ALSA: hda/conexant: Fix headset auto detect fail in cx8070 and SN6140
ALSA: ac97: fix build regression
ALSA: hda: cs35l41: Support more HP models without _DSD
ALSA: hda/tas2781: add fixup for Lenovo 14ARB7
ALSA: hda/tas2781: add TAS2563 support for 14ARB7
ALSA: hda/tas2781: add configurable global i2c address
ALSA: hda/tas2781: add ptrs to calibration functions
ALSA: hda: Add driver properties for cs35l41 for Lenovo Legion Slim 7 Gen 8 serie
ALSA: hda/realtek: enable SND_PCI_QUIRK for Lenovo Legion Slim 7 Gen 8 (2023) serie
ALSA: hda/tas2781: configure the amp after firmware load
ALSA: mark all struct bus_type as const
ASoC: pxa: sspa: Don't select SND_ARM
ASoC: rt5663: cancel the work when system suspends
ALSA: scarlett2: Add PCM Input Switch for Solo Gen 4
...
new drivers:
- imagination - new driver for Imagination Technologies GPU
- xe - new driver for Intel GPUs using core drm concepts
core:
- add CLOSE_FB ioctl
- remove old UMS ioctls
- increase max objects to accomodate AMD color mgmt
encoder:
- create per-encoder debugfs directory
edid:
- split out drm_eld
- SAD helpers
- drop edid_firmware module parameter
format-helper:
- cache format conversion buffers
sched:
- move from kthread to workqueue
- rename some internals
- implement dynamic job-flow control
gpuvm:
- provide more features to handle GEM objects
client:
- don't acquire module reference
displayport:
- add mst path property documentation
fdinfo:
- alignment fix
dma-buf:
- add fence timestamp helper
- add fence deadline support
bridge:
- transparent aux-bridge for DP/USB-C
- lt8912b: add suspend/resume support and power regulator support
panel:
- edp: AUO B116XTN02, BOE NT116WHM-N21,836X2, NV116WHM-N49
- chromebook panel support
- elida-kd35t133: rework pm
- powkiddy RK2023 panel
- himax-hx8394: drop prepare/unprepare and shutdown logic
- BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G
- Evervision VGG644804, SDC ATNA45AF01
- nv3052c: register docs, init sequence fixes, fascontek FS035VG158
- st7701: Anbernic RG-ARC support
- r63353 panel controller
- Ilitek ILI9805 panel controller
- AUO G156HAN04.0
simplefb:
- support memory regions
- support power domains
amdgpu:
- add new 64-bit sequence number infrastructure
- add AMD specific color management
- ACPI WBRF support for RF interference handling
- GPUVM updates
- RAS updates
- DCN 3.5 updates
- Rework PCIe link speed handling
- Document GPU reset types
- DMUB fixes
- eDP fixes
- NBIO 7.9/7.11 updates
- SubVP updates
- XGMI PCIe state dumping for aqua vanjaram
- GFX11 golden register updates
- enable tunnelling on high pri compute
amdkfd:
- Migrate TLB flushing logic to amdgpu
- Trap handler fixes
- Fix restore workers handling on suspend/resume
- Fix possible memory leak in pqm_uninit()
- support import/export of dma-bufs using GEM handles
radeon:
- fix possible overflows in command buffer checking
- check for errors in ring_lock
i915:
- reorg display code for reuse in xe driver
- fdinfo memory stats printing
- DP MST bandwidth mgmt improvements
- DP panel replay enabling
- MTL C20 phy state verification
- MTL DP DSC fractional bpp support
- Audio fastset support
- use dma_fence interfaces instead of i915_sw_fence
- Separate gem and display code
- AUX register macro refactoring
- Separate display module/device parameters
- Move display capabilities debugfs under display
- Makefile cleanups
- Register cleanups
- Move display lock inits under display/
- VLV/CHV DPIO PHY register and interface refactoring
- DSI VBT sequence refactoring
- C10/C20 PHY PLL hardware readout
- DPLL code cleanups
- Cleanup PXP plane protection checks
- Improve display debug msgs
- PSR selective fetch fixes/improvements
- DP MST fixes
- Xe2LPD FBC restrictions removed
- DGFX uses direct VBT pin mapping
- more MTL WAs
- fix MTL eDP bug
- eliminate use of kmap_atomic
habanalabs:
- sysfs entry to identify a device minor id with debugfs path
- sysfs entry to expose device module id
- add signed device info retrieval through INFO ioctl
- add Gaudi2C device support
- pcie reset prepare/done hooks
msm:
- Add support for SDM670, SM8650
- Handle the CFG interconnect to fix the obscure hangs / timeouts
- Kconfig fix for QMP dependency
- use managed allocators
- DPU: SDM670, SM8650 support
- DPU: Enable SmartDMA on SM8350 and SM8450
- DP: enable runtime PM support
- GPU: add metadata UAPI
- GPU: move devcoredumps to GPU device
- GPU: convert to drm_exec
ivpu:
- update FW API
- new debugfs file
- a new NOP job submission test mode
- improve suspend/resume
- PM improvements
- MMU PT optimizations
- firmware profile frequency support
- support for uncached buffers
- switch to gem shmem helpers
- replace kthread with threaded irqs
rockchip:
- rk3066_hdmi: convert to atomic
- vop2: support nv20 and nv30
- rk3588 support
mediatek:
- use devm_platform_ioremap_resource
- stop using iommu_present
- MT8188 VDOSYS1 display support
panfrost:
- PM improvements
- improve interrupt handling as poweroff
qaic:
- allow to run with single MSI
- support host/device time sync
- switch to persistent DRM devices
exynos:
- fix potential error pointer dereference
- fix wrong error checking
- add missing call to drm_atomic_helper_shutdown
omapdrm:
- dma-fence lockdep annotation fix
tidss:
- dma-fence lockdep annotation fix
- support for AM62A7
v3d:
- BCM2712 - rpi5 support
- fdinfo + gputop support
- uapi for CPU job handling
virtio-gpu:
- add context debug name
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Merge tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"This contains two major new drivers:
- imagination is a first driver for Imagination Technologies devices,
it only covers very specific devices, but there is hope to grow it
- xe is a reboot of the i915 GPU (shares display) side using a more
upstream focused development model, and trying to maximise code
sharing. It's not enabled for any hw by default, and will hopefully
get switched on for Intel's Lunarlake.
This also drops a bunch of the old UMS ioctls. It's been dead long
enough.
amdgpu has a bunch of new color management code that is being used in
the Steam Deck.
amdgpu also has a new ACPI WBRF interaction to help avoid radio
interference.
Otherwise it's the usual lots of changes in lots of places.
Detailed summary:
new drivers:
- imagination - new driver for Imagination Technologies GPU
- xe - new driver for Intel GPUs using core drm concepts
core:
- add CLOSE_FB ioctl
- remove old UMS ioctls
- increase max objects to accomodate AMD color mgmt
encoder:
- create per-encoder debugfs directory
edid:
- split out drm_eld
- SAD helpers
- drop edid_firmware module parameter
format-helper:
- cache format conversion buffers
sched:
- move from kthread to workqueue
- rename some internals
- implement dynamic job-flow control
gpuvm:
- provide more features to handle GEM objects
client:
- don't acquire module reference
displayport:
- add mst path property documentation
fdinfo:
- alignment fix
dma-buf:
- add fence timestamp helper
- add fence deadline support
bridge:
- transparent aux-bridge for DP/USB-C
- lt8912b: add suspend/resume support and power regulator support
panel:
- edp: AUO B116XTN02, BOE NT116WHM-N21,836X2, NV116WHM-N49
- chromebook panel support
- elida-kd35t133: rework pm
- powkiddy RK2023 panel
- himax-hx8394: drop prepare/unprepare and shutdown logic
- BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G
- Evervision VGG644804, SDC ATNA45AF01
- nv3052c: register docs, init sequence fixes, fascontek FS035VG158
- st7701: Anbernic RG-ARC support
- r63353 panel controller
- Ilitek ILI9805 panel controller
- AUO G156HAN04.0
simplefb:
- support memory regions
- support power domains
amdgpu:
- add new 64-bit sequence number infrastructure
- add AMD specific color management
- ACPI WBRF support for RF interference handling
- GPUVM updates
- RAS updates
- DCN 3.5 updates
- Rework PCIe link speed handling
- Document GPU reset types
- DMUB fixes
- eDP fixes
- NBIO 7.9/7.11 updates
- SubVP updates
- XGMI PCIe state dumping for aqua vanjaram
- GFX11 golden register updates
- enable tunnelling on high pri compute
amdkfd:
- Migrate TLB flushing logic to amdgpu
- Trap handler fixes
- Fix restore workers handling on suspend/resume
- Fix possible memory leak in pqm_uninit()
- support import/export of dma-bufs using GEM handles
radeon:
- fix possible overflows in command buffer checking
- check for errors in ring_lock
i915:
- reorg display code for reuse in xe driver
- fdinfo memory stats printing
- DP MST bandwidth mgmt improvements
- DP panel replay enabling
- MTL C20 phy state verification
- MTL DP DSC fractional bpp support
- Audio fastset support
- use dma_fence interfaces instead of i915_sw_fence
- Separate gem and display code
- AUX register macro refactoring
- Separate display module/device parameters
- Move display capabilities debugfs under display
- Makefile cleanups
- Register cleanups
- Move display lock inits under display/
- VLV/CHV DPIO PHY register and interface refactoring
- DSI VBT sequence refactoring
- C10/C20 PHY PLL hardware readout
- DPLL code cleanups
- Cleanup PXP plane protection checks
- Improve display debug msgs
- PSR selective fetch fixes/improvements
- DP MST fixes
- Xe2LPD FBC restrictions removed
- DGFX uses direct VBT pin mapping
- more MTL WAs
- fix MTL eDP bug
- eliminate use of kmap_atomic
habanalabs:
- sysfs entry to identify a device minor id with debugfs path
- sysfs entry to expose device module id
- add signed device info retrieval through INFO ioctl
- add Gaudi2C device support
- pcie reset prepare/done hooks
msm:
- Add support for SDM670, SM8650
- Handle the CFG interconnect to fix the obscure hangs / timeouts
- Kconfig fix for QMP dependency
- use managed allocators
- DPU: SDM670, SM8650 support
- DPU: Enable SmartDMA on SM8350 and SM8450
- DP: enable runtime PM support
- GPU: add metadata UAPI
- GPU: move devcoredumps to GPU device
- GPU: convert to drm_exec
ivpu:
- update FW API
- new debugfs file
- a new NOP job submission test mode
- improve suspend/resume
- PM improvements
- MMU PT optimizations
- firmware profile frequency support
- support for uncached buffers
- switch to gem shmem helpers
- replace kthread with threaded irqs
rockchip:
- rk3066_hdmi: convert to atomic
- vop2: support nv20 and nv30
- rk3588 support
mediatek:
- use devm_platform_ioremap_resource
- stop using iommu_present
- MT8188 VDOSYS1 display support
panfrost:
- PM improvements
- improve interrupt handling as poweroff
qaic:
- allow to run with single MSI
- support host/device time sync
- switch to persistent DRM devices
exynos:
- fix potential error pointer dereference
- fix wrong error checking
- add missing call to drm_atomic_helper_shutdown
omapdrm:
- dma-fence lockdep annotation fix
tidss:
- dma-fence lockdep annotation fix
- support for AM62A7
v3d:
- BCM2712 - rpi5 support
- fdinfo + gputop support
- uapi for CPU job handling
virtio-gpu:
- add context debug name"
* tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm: (2340 commits)
drm/amd/display: Allow z8/z10 from driver
drm/amd/display: fix bandwidth validation failure on DCN 2.1
drm/amdgpu: apply the RV2 system aperture fix to RN/CZN as well
drm/amd/display: Move fixpt_from_s3132 to amdgpu_dm
drm/amd/display: Fix recent checkpatch errors in amdgpu_dm
Revert "drm/amdkfd: Relocate TBA/TMA to opposite side of VM hole"
drm/amd/display: avoid stringop-overflow warnings for dp_decide_lane_settings()
drm/amd/display: Fix power_helpers.c codestyle
drm/amd/display: Fix hdcp_log.h codestyle
drm/amd/display: Fix hdcp2_execution.c codestyle
drm/amd/display: Fix hdcp_psp.h codestyle
drm/amd/display: Fix freesync.c codestyle
drm/amd/display: Fix hdcp_psp.c codestyle
drm/amd/display: Fix hdcp1_execution.c codestyle
drm/amd/pm/smu7: fix a memleak in smu7_hwmgr_backend_init
drm/amdkfd: Fix iterator used outside loop in 'kfd_add_peer_prop()'
drm/amdgpu: Drop 'fence' check in 'to_amdgpu_amdkfd_fence()'
drm/amdkfd: Confirm list is non-empty before utilizing list_first_entry in kfd_topology.c
drm/amdgpu: Fix '*fw' from request_firmware() not released in 'amdgpu_ucode_request()'
drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'
...
It's not easy to let go responsibility for a subsystem that one cared
for for a long time, but Thierry realized that his heart isn't in the
pwm framework any more.
Thierry cared for the pwm subsystem (commit 200efedd87 ("pwm: Take
over maintainership of the PWM subsystem")) as a maintainer during
nearly 12 years. A big thanks for the time, effort and dedication spend
during that time.
Uwe takes over maintenance.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Add a missing mutex_unlock(&thermal_dbg->lock) to this error path.
Fixes: 7ef01f228c ("thermal/debugfs: Add thermal debugfs information for mitigation episodes")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The kernel allocates a memory buffer and provides its location to the
hardware, which uses it to update the HFI table. This allocation occurs
during boot and remains constant throughout runtime.
When resuming from hibernation, the restore kernel allocates a second
memory buffer and reprograms the HFI hardware with the new location as
part of a normal boot. The location of the second memory buffer may
differ from the one allocated by the image kernel.
When the restore kernel transfers control to the image kernel, its HFI
buffer becomes invalid, potentially leading to memory corruption if the
hardware writes to it (the hardware continues to use the buffer from the
restore kernel).
It is also possible that the hardware "forgets" the address of the memory
buffer when resuming from "deep" suspend. Memory corruption may also occur
in such a scenario.
To prevent the described memory corruption, disable HFI when preparing to
suspend or hibernate. Enable it when resuming.
Add syscore callbacks to handle the package of the boot CPU (packages of
non-boot CPUs are handled via CPU offline). Syscore ops always run on the
boot CPU. Additionally, HFI only needs to be disabled during "deep" suspend
and hibernation. Syscore ops only run in these cases.
Cc: 6.1+ <stable@vger.kernel.org> # 6.1+
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
[ rjw: Comment adjustment, subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit 0952177f2a ("thermal/core/power_allocator: Update once
cooling devices when temp is low") adds an update flag to avoid
triggering a thermal event when there is no need, and the thermal
cdev is updated once when the temperature is low.
But when the trips are writable, and switch_on_temp is set to be a
higher value, the cooling device state may not be reset to 0,
because last_temperature is smaller than switch_on_temp.
For example:
First:
switch_on_temp=70 control_temp=85;
Then userspace change the trip_temp:
switch_on_temp=45 control_temp=55 cur_temp=54
Then userspace reset the trip_temp:
switch_on_temp=70 control_temp=85 cur_temp=57 last_temp=54
At this time, the cooling device state should be reset to 0.
However, because cur_temp(57) < switch_on_temp(70)
last_temp(54) < switch_on_temp(70) ----> update = false,
update is false, the cooling device state can not be reset.
Using the observation that tz->passive can also be regarded as the
temperature status, set the update flag to the tz->passive value.
When the temperature drops below switch_on for the first time, the
states of cooling devices can be reset once, and tz->passive is updated
to 0. In the next round, because tz->passive is 0, cdev->state will not
be updated.
By using the tz->passive value as the "update" flag, the issue above
can be solved, and the cooling devices can be updated only once when the
temperature is low.
Fixes: 0952177f2a ("thermal/core/power_allocator: Update once cooling devices when temp is low")
Cc: 5.13+ <stable@vger.kernel.org> # 5.13+
Suggested-by: Wei Wang <wvw@google.com>
Signed-off-by: Di Shen <di.shen@unisoc.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Change the code layout in thermal_cdev_set_cur_state() so it returns
early on errors which is more consistent with what happens elsewhere.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
In analogy with some previous thermal netlink API changes, redefine
thermal_notify_cdev_state_update(), thermal_notify_cdev_add() and
thermal_notify_cdev_delete() to take a const cdev pointer as their
first argument and let them extract the requisite information from
there by themselves.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Some *thermal_cooling_device_register() calls pass a string literal as
the 'type' parameter, so kstrdup_const() can be used instead of
kstrdup() to avoid a memory allocation in such cases.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The mitigation episodes are recorded. A mitigation episode happens
when the first trip point is crossed the way up and then the way
down. During this episode other trip points can be crossed also and
are accounted for this mitigation episode. The interesting information
is the average temperature at the trip point, the undershot and the
overshot. The standard deviation of the mitigated temperature will be
added later.
The thermal debugfs directory structure tries to stay consistent with
the sysfs one but in a very simplified way:
thermal/
`-- thermal_zones
|-- 0
| `-- mitigations
`-- 1
`-- mitigations
The content of the mitigations file has the following format:
,-Mitigation at 349988258us, duration=130136ms
| trip | type | temp(°mC) | hyst(°mC) | duration | avg(°mC) | min(°mC) | max(°mC) |
| 0 | passive | 65000 | 2000 | 130136 | 68227 | 62500 | 75625 |
| 1 | passive | 75000 | 2000 | 104209 | 74857 | 71666 | 77500 |
,-Mitigation at 272451637us, duration=75000ms
| trip | type | temp(°mC) | hyst(°mC) | duration | avg(°mC) | min(°mC) | max(°mC) |
| 0 | passive | 65000 | 2000 | 75000 | 68561 | 62500 | 75000 |
| 1 | passive | 75000 | 2000 | 60714 | 74820 | 70555 | 77500 |
,-Mitigation at 238184119us, duration=27316ms
| trip | type | temp(°mC) | hyst(°mC) | duration | avg(°mC) | min(°mC) | max(°mC) |
| 0 | passive | 65000 | 2000 | 27316 | 73377 | 62500 | 75000 |
| 1 | passive | 75000 | 2000 | 19468 | 75284 | 69444 | 77500 |
,-Mitigation at 39863713us, duration=136196ms
| trip | type | temp(°mC) | hyst(°mC) | duration | avg(°mC) | min(°mC) | max(°mC) |
| 0 | passive | 65000 | 2000 | 136196 | 73922 | 62500 | 75000 |
| 1 | passive | 75000 | 2000 | 91721 | 74386 | 69444 | 78125 |
More information for a better understanding of the thermal behavior
will be added after. The idea is to give detailed statistics
information about the undershots and overshots, the temperature speed,
etc... As all the information in a single file is too much, the idea
would be to create a directory named with the mitigation timestamp
where all data could be added.
Please note this code is immune against trip ordering but not against
a trip temperature change while a mitigation is happening. However,
this situation should be extremely rare, perhaps not happening and we
might question ourselves if something should be done in the core
framework for other components first.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
[ rjw: White space fixups, rebase ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The thermal framework does not have any debug information except a
sysfs stat which is a bit controversial. This one allocates big chunks
of memory for every cooling devices with a high number of states and
could represent on some systems in production several megabytes of
memory for just a portion of it. As the sysfs is limited to a page
size, the output is not exploitable with large data array and gets
truncated.
The patch provides the same information than sysfs except the
transitions are dynamically allocated, thus they won't show more
events than the ones which actually occurred. There is no longer a
size limitation and it opens the field for more debugging information
where the debugfs is designed for, not sysfs.
The thermal debugfs directory structure tries to stay consistent with
the sysfs one but in a very simplified way:
thermal/
-- cooling_devices
|-- 0
| |-- clear
| |-- time_in_state_ms
| |-- total_trans
| `-- trans_table
|-- 1
| |-- clear
| |-- time_in_state_ms
| |-- total_trans
| `-- trans_table
|-- 2
| |-- clear
| |-- time_in_state_ms
| |-- total_trans
| `-- trans_table
|-- 3
| |-- clear
| |-- time_in_state_ms
| |-- total_trans
| `-- trans_table
`-- 4
|-- clear
|-- time_in_state_ms
|-- total_trans
`-- trans_table
The content of the files in the cooling devices directory is the same
as the sysfs one except for the trans_table which has the following
format:
Transition Hits
1->0 246
0->1 246
2->1 632
1->2 632
3->2 98
2->3 98
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
[ rjw: White space fixups, rebase ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The depency of FANOTIFY_ACCESS_PERMISSIONS on SECURITY made sure that
the fsnotify permission hooks were never called when SECURITY was
disabled.
Moving the fsnotify permission hook out of the secutiy hook broke that
optimisation.
Reported-and-tested-by: Jens Axboe <axboe@kernel.dk>
Closes: https://lore.kernel.org/linux-fsdevel/53682ece-f0e7-48de-9a1c-879ee34b0449@kernel.dk/
Fixes: d9e5d31084 ("fsnotify: optionally pass access range in file permission hooks")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://lore.kernel.org/r/20240109182245.38884-1-amir73il@gmail.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
From looking at the PCI IDs, every device supported by intelfb is
also supported by i915. Anyone still using intelfb should please
move on to i915, which does everything intelfb does but better.
Removing intelfb is motivated by the driver's excessive use of the
global screen_info state. The state belongs to architecture and
firmware code; device drivers should not attempt to access it. But
fixing intelfb would require a significant change in the driver's
probing logic. As intelfb has been obsolete for nearly 2 decades,
it is probably not worth the effort. Let's just remove it. Also
remove the related documentation.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Maik Broemme <mbroemme@libmpq.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Do not clear the global instance of screen_info. If necessary, clearing
fields in screen_info should be done by architecture or firmware code
that maintains the firmware framebuffer.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
After consuming the global screen_info_state in sysfb_init(), the
created platform device maintains the firmware framebuffer. Clear
screen_info to avoid conflicting access. Subsequent kexec reboots
now ignore the firmware framebuffer.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Replace use of screen_info state with the correct interfaces from
the aperture helpers. The state is only for architecture and firmware
code. It is not guaranteed to contain valid data. Drivers are thus
not allowed to use it.
For removing conflicting firmware framebuffers, there are aperture
helpers. Hence replace screen_info with the correct functions that will
remove conflicting framebuffers for the hypervfb driver. For GEN1 PCI
devices, the driver reads the framebuffer base and size from the PCI
BAR, and uses the range for removing the firmware framebuffer. For
GEN2 VMBUS devices no range can be detected, so the driver clears all
firmware framebuffers.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Replace use of screen_info state with the correct interface from
the aperture helpers. The state is only for architecture and firmware
code. It is not guaranteed to contain valid data. Drivers are thus
not allowed to use it.
For removing conflicting firmware framebuffers, there are aperture
helpers. Hence replace screen_info with the correct function that will
remove conflicting framebuffers for the hyperv-drm driver. Also
move the call to the correct place within the driver.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
When built-in, the sis driver tries to detect the current display mode
from the global screen_info state. That state is only for architecture
and firmware code. Drivers should not use it directly as it's not
guaranteed to contain valid information.
Remove the mode-detection code from sis. Drivers that want to detect a
pre-set mode on probe should read the hardware registers directly.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Currently the %d format specifier is being used for unsigned int values.
Fix this by using the correct %u format specifier. Cleans up cppcheck
warnings:
warning: %d in format string (no. 1) requires 'int' but the argument
type is 'unsigned int'. [invalidPrintfArgType_sint]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Qi Zheng