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  • v5.4.116

    370636ff · Linux 5.4.116 · 
    This is the 5.4.116 stable release

  • orange-pi-5.11-20210501-1836

    a64f720d · Merge remote-tracking branch 'stable/linux-5.11.y' into orange-pi-5.11 · 
    Release: orange-pi-5.11-20210501-1836

NEWS
====

See also:

- https://xnux.eu/log/
- https://xnux.eu/devices/pine64-pinephone.html
- https://xff.cz/kernels/

2021-05-01:
- EOL, use orange-pi-5.12
2021-04-25:
- pulled in v5.11.16
2021-04-12:
- pulled in v5.11.13
2021-04-09:
- pulled in v5.11.12
2021-03-30:
- pulled in v5.11.11
2021-03-25:
- pulled in v5.11.10
2021-03-24:
- pulled in v5.11.9
2021-03-22:
- pulled in v5.11.8
2021-03-14:
- enable interrupt on battery capacity low (wakeup the phone and notify power
  supply change, for userspace to gracefully handle this condition)
2021-03-11:
- pulled in v5.11.6
2021-03-09:
- pulled in v5.11.5
2021-03-08:
- pulled in v5.11.4
2021-03-04:
- pulled in v5.11.3
2021-02-26:
- pulled in v5.11.2
2021-02-20:
- fix an7688 compilation on 32-bit ARM
2021-02-19:
- added support for wake over wireless LAN (WoWLAN) - howto is in the commit
2021-02-18:
- added USB_QUIRK_RESET for EG25G modem (https://gitlab.com/mobian1/devices/eg25-manager/-/merge_requests/5)
2021-02-15:
- rebased on v5.11 final
- fixed anx7688 fw flashing timeout
- added Samuel's patches:
  - allow to use RTC wakeup when powered off
  - NVMEM driver for RTC data registers
- pulled in some fixes from linux-next into fixes-5.11
- disable MMC runtime PM again (causes issues on H5/H6 https://megous.com/dl/tmp/1eec9b1c7f03ad93.png)
- used nvmem reboot driver (suggested by Samuel in RFC patch) for rebooting to FEL,
  eMMC bootloader, various p-boot boot configs on either eMMC or SD card's bootfs filesystems,
  boot menu, etc. via reboot() syscall with extra arg (see LINUX_REBOOT_CMD_RESTART2)
  (p-boot is also updated to support this mechanism, as of 2021-02-15)
2021-02-08:
- rebased on 5.11-rc7
2021-02-04:
- rebased on linus/master
2021-01-30:
- rebased on linus/master
2021-01-27:
- tested on all my boards
- make HDMI audio sound card initializa again on H3/H5
- fix rebase regression in stmmac driver that broke ethernet on PC 2
2021-01-25:
- rebased on top of v5.11-rc5
- fix 8723cs bluetooth DT to load pinephone BT config file correctly (add -pinephone postfix)
- fix a bunch of ASoC debugfs/bt-soc errors
- remove some noisy logging
- move mmc# aliases to SoC DT files to cover more boards
- added gc2145 BGGR bayer mode patch (makes this kernel work with megapixels)
- update Samuel's patches for irq-wakeup to v5
2021-01-12:
- rebased on top of v5.11-rc3+
- update Samuel's patches (stmmac, i2c-pm, irq-wakeup)
2021-01-02:
- rebased on top of v5.11-rc1+
2020-12-14:
- rebased on top of v5.10
- added patch to chnage Vbus hold voltage to 4.5V on Pinephone (this makes PD charging more stable)
2020-12-11:
- rebased on top of linus/master
2020-12-07:
- rebased on top of 5.10-rc7
2020-12-05:
- modem power driver: add more powerup modes and change interface for dumb and fastboot powerup
  - you can now write 2, 3 or 4 to .../powered sysfs file to select differnt powerup mode from
    the normal one (1)
  - this is useful for selecting alternate userspace configurations early in boot to allow
    tracing the userspace processes from early on for reverse engineering, and in the near
    future, it will be used to switch between original and fully-FOSS userspace code
    running on the modem's APPS CPU on powerup
    - see https://xnux.eu/log/#028
2020-12-02:
- fix WiFi blocking suspend
- improve modem power driver interaction with kernel's autosleep
- shorten resume times from 1.2s to 400ms (wifi driver optimization)
2020-11-30:
- I improved the anx7688 driver to actually respect PD capabilities of the source,
  and don't overload it. This should make it more likely to work with the USB-C
  docks when docks are powered.
- Pine64 dock can provide either 500mA when powered from regular USB-A charger
  (regardless of what kind of charger it is, it can't use more current from it)
- With my 3A PD charger, Pine64 dock will advertise 2600mA and Pinephone will
  now respect this limit.
- rebase on linus/master (5.10-rc6 atm)
- increase I2C clock for sensors and touchscreen/anx7688 from 100kHz to 400kHz
- added patch from https://patchwork.kernel.org/project/dri-devel/cover/20200222024210.18697-1-yuq825@gmail.com/#23237865
  for easier GPU debugging (suggested by bshah)
2020-11-28:
- rebased on linus/master
- replaced my 60FPS fix with a more mainlineable and better working solution from Roman Beranek
- disable 8723cs CONCURRENT_MODE, enable wifi 802.11z TDLS
2020-11-25:
- enable wifi power saving mode (saves 350mW in idle, and doesn't seem to break the wifi so far)
2020-11-25:
- added a new 2020-10 wifi driver and cleaned up to work with PinePhone
- see wifi-5.10 branch
- rebased on linus/master
2020-11-23:
- rebased, added modem power blocking mode (p-boot privacy support)
2020-11-17:
- drop ov5640 AF patch
2020-11-17:
- rebase on linux/master
- fix camera probe
2020-11-15:
- rebase on linux/master
- add "retain LED state in sleep" patch
2020-11-13:
- fix boot failure on pocketbook (see https://www.mail-archive.com/linux-crypto@vger.kernel.org/msg46288.html)
2020-11-13:
- rebase on top of 5.10-rc3+
- update defconfigs
2020-11-10:
- rebase on top of 5.10-rc3
2020-11-01:
- added some musb suspend/resume fixes
- fixed regulator probe on a711
- fix mmc device numbering
- rebase on top of 5.10-rc2
2020-10-31:
- rebased on top of 5.10-rc1+
- added ov5640 autofocus support from Martijn Braam (you'll need /lib/firmware/ov5640_af.bin)
- added fix for DSI panel 36.6 FPS issue (myself)
- import upstreamed variant of audio patches from Samuel
2020-10-25:
- rebased on top of 5.10-rc1
2020-10-19:
- fix orange pi 3 ethernet
2020-10-12:
- fix issue with dsi clock described here: https://xnux.eu/log/#021
- rebase on v5.9 final
- integrate pinetab panel patches from (untested)
  https://gitlab.com/pine64-org/linux/-/commits/pine64-kernel-5.7.y-pinetabpanel/
2020-09-29:
- add a few more codec API fixes from Samuel
2020-09-28:
- rebase on top of 5.9-rc7
- integrated the newest audio patches from Samuel
2020-09-23:
- port battery thermal regulation fix from p-boot (completely untested, see https://xnux.eu/log/#018)
2020-09-18:
- cedrus panic fix
- rebase on linus/master
2020-09-17:
- further modem driver improvements (fix urc setting on old modem firmwares)
2020-09-13:
- rebase on top of 5.9-rc5
2020-09-12:
- rebase on top of 5.9-rc4+
2020-09-10:
- rebase on top of 5.9-rc4+
- further fixes for the modem driver poweron, support for fast poweroff feature
  present on new modem firmware
- added flash DT changes
- add mounting matrix and a kernel command line option to override it (ignore_mount_matrix)
- https://xff.cz/kernels also contains special kernel builds for my multi-dist image
  (see https://xnux.eu/log/)
- enabled opportunistic sleep
- enabled btrfs support
2020-09-01:
- rebase on top of 5.9-rc3
2020-08-19:
- rebase and port to 5.9-rc1
- fix various issues with 5.9-rc1
- fix sleeps in atomic context in anx7688 driver
- dropped panfrost dvfs patches for now (conflicts, stability issues)
- fix modem UART issues on powerup (sometimes not receiving RDY, etc.)
  - root cause was host UART locking up due to noise on RX, and the
    fix is to only open UART port when the modem is powered
2020-08-11:
- fix sun50i-codec-analog probe failure when built-in
2020-08-09:
- pull in codec changes from Samuel
- don't wait for RDY but poll with empty AT command for the modem's status
2020-08-06:
- added Samuel's patch for making recording from the codec work again
2020-08-05:
- modem driver fixes for BH
2020-08-03:
- fixed AC100 driver to make it work without mod clock
2020-08-02:
- integrated latest Samuel's audio patches + rebased my AC100 support on top
- finished the modem-power driver into a hopefully useable state
2020-07-25:
- rebased on top of 5.8-rc7+
- fixed modem driver issue with not shutting down the modem on poweroff/reset
  on PinePhone (introduced during modem driver rewrite around 5.8-rc5)
- worked around AXP reseting input current limit to 500mA regardless of
  BC detection being disabled (happened on boot with USB-C cable connected
  to USB-C PD charger) (and reverted again)
- improved modem driver
  - initialize the modem configuration for proper sleep
  - setup QDAI automatically from DTS
  - show modem firmware version in dmesg
  - added rfkill interface
  - handle URC caching during suspend
2020-07-16:
- added HP jack detection patches from A-wai
2020-07-14:
- added support for Pinebook Pro
- fix issue in my bl_pwm PinePhone patch that broke Pinebook Pro's backlight
2020-07-13:
- rebased on top of 5.8-rc5
- improved HW led trigger API
- more modem-power work (change to serdev, recv messages from the modem)
- support HDMI audio on PinePhone
- bump PD power requirement to 15W on PinePhone
2020-07-08:
- refactoring of the modem driver, moved to modem-5.8 branch (not finished
  yet, see TODO in the driver)
- update pinephone 1.0-1.2 dts to reflect the differences in modem setup
- enable orange pi 3 hdmi audio
2020-07-06:
- rebased on top of 5.8-rc4
2020-07-05:
- Added fixes for PinePhone panel initialization after resume from sleep
2020-07-04:
- Integrated Clément's HDMI audio series (20200704113902.336911-1-peron.clem@gmail.com)
- Integrated Clément's panfrost DVFS series (20200704102535.189647-1-peron.clem@gmail.com)

My kernel's main integration branch is 'orange-pi-$VER' (this one).
No other branch is supposed to work alone. My defconfigs are tested
and work on the boards I support. Read the README.md for more info.

Only my branches based on the current mainline kernel branch are
maintained (those are usually the -rc# kernels!). You can find the
current mainline version here https://www.kernel.org/ (mainline: ...)

My prebuilt kernels can be found at https://xff.cz/kernels/ You can
use them to test that your board works, or just run them without
bothering with building everything yourself. I run them on all my
boards.

My website is https://xnux.eu and may contain useful advice.

Good luck!

     ~megi

  • orange-pi-5.12-20210501-1409

    0c683608 · devfreq: sun8i-mbus: Set default minimum frequency for the governor · 
    Release: orange-pi-5.12-20210501-1409

NEWS
====

See also:

- https://xnux.eu/log/
- https://xnux.eu/devices/pine64-pinephone.html
- https://xff.cz/kernels/

2021-05-01:
- fixed suspend failure of light/proximity sensor
- raise the default minimum frequency for mbus devfreq governor
  (you can still lower it in sysfs for higher runtime power savings at the cost
  of some performance, see /sys/class/devfreq and tune it there for your distro)
2021-04-26:
- rebase on 5.12 final
- fixed behavior with dumb charger (DCP) being forced to 500mA on boot from anx7688
  driver
- disable lradc wakeup by default (lowers the power consumption in suspend)
2021-04-25:
- rebase on linus/master
- I've created a patch that disables touchscreen controller during system sleep
  reducing power consumption by about 40mW in sleep (and by 130mW when touching
  the screen in sleep)
  - before: https://megous.com/dl/tmp/0533207eed42258c.png
  - after: https://megous.com/dl/tmp/5d504d680415e2e3.png
  - those power spikes are touch controller checking if there's a finger touching
    the screen, and those dense spikes are when the finger is actually touching
    the screen
- Added Samuel's DRAM downclocking patches
2021-04-19:
- rebase on 5.12-rc8
2021-04-12:
- rebase on 5.12-rc7
2021-04-09:
- rebase on linus/master
2021-04-05:
- rebase on 5.12-rc6
2021-04-01:
- added patches from Samuel that implement cpuidle power savings on PinePhone
  (You also need to run the latest master of TF-A and crust firmware.)
- rebased on top of linus/master
2021-03-22:
- rebase on 5.12-rc4
2021-03-15:
- rebase on 5.12-rc3
- enable interrupt on battery capacity low (wakeup the phone and notify power
  supply change, for userspace to gracefully handle this condition)
2021-03-11:
- linus/master update
2021-03-09:
- linus/master update
2021-03-04:
- linus/master update (fixes FS corruption when using swapfiles)
2021-03-01:
- rebase on 5.12-rc1
2021-02-23:
- rebased on top of linus/master (5.12 cycle)
- cleaned up compile errors
2021-02-20:
- fix an7688 compilation on 32-bit ARM
2021-02-19:
- added support for wake over wireless LAN (WoWLAN) - howto is in the
2021-02-18:
- added USB_QUIRK_RESET for EG25G modem (https://gitlab.com/mobian1/devices/eg25-manager/-/merge_requests/5)
2021-02-15:
- rebased on v5.11 final
- fixed anx7688 fw flashing timeout
- added Samuel's patches:
  - allow to use RTC wakeup when powered off
  - NVMEM driver for RTC data registers
- pulled in some fixes from linux-next into fixes-5.11
- disable MMC runtime PM again (causes issues on H5/H6 https://megous.com/dl/tmp/1eec9b1c7f03ad93.png)
- used nvmem reboot driver (suggested by Samuel in RFC patch) for rebooting to FEL,
  eMMC bootloader, various p-boot boot configs on either eMMC or SD card's bootfs filesystems,
  boot menu, etc. via reboot() syscall with extra arg (see LINUX_REBOOT_CMD_RESTART2)
  (p-boot is also updated to support this mechanism, as of 2021-02-15)
2021-02-08:
- rebased on 5.11-rc7
2021-02-04:
- rebased on linus/master
2021-01-30:
- rebased on linus/master
2021-01-27:
- tested on all my boards
- make HDMI audio sound card initializa again on H3/H5
- fix rebase regression in stmmac driver that broke ethernet on PC 2
2021-01-25:
- rebased on top of v5.11-rc5
- fix 8723cs bluetooth DT to load pinephone BT config file correctly (add -pinephone postfix)
- fix a bunch of ASoC debugfs/bt-soc errors
- remove some noisy logging
- move mmc# aliases to SoC DT files to cover more boards
- added gc2145 BGGR bayer mode patch (makes this kernel work with megapixels)
- update Samuel's patches for irq-wakeup to v5
2021-01-12:
- rebased on top of v5.11-rc3+
- update Samuel's patches (stmmac, i2c-pm, irq-wakeup)
2021-01-02:
- rebased on top of v5.11-rc1+
2020-12-14:
- rebased on top of v5.10
- added patch to chnage Vbus hold voltage to 4.5V on Pinephone (this makes PD charging more stable)
2020-12-11:
- rebased on top of linus/master
2020-12-07:
- rebased on top of 5.10-rc7
2020-12-05:
- modem power driver: add more powerup modes and change interface for dumb and fastboot powerup
  - you can now write 2, 3 or 4 to .../powered sysfs file to select differnt powerup mode from
    the normal one (1)
  - this is useful for selecting alternate userspace configurations early in boot to allow
    tracing the userspace processes from early on for reverse engineering, and in the near
    future, it will be used to switch between original and fully-FOSS userspace code
    running on the modem's APPS CPU on powerup
    - see https://xnux.eu/log/#028
2020-12-02:
- fix WiFi blocking suspend
- improve modem power driver interaction with kernel's autosleep
- shorten resume times from 1.2s to 400ms (wifi driver optimization)
2020-11-30:
- I improved the anx7688 driver to actually respect PD capabilities of the source,
  and don't overload it. This should make it more likely to work with the USB-C
  docks when docks are powered.
- Pine64 dock can provide either 500mA when powered from regular USB-A charger
  (regardless of what kind of charger it is, it can't use more current from it)
- With my 3A PD charger, Pine64 dock will advertise 2600mA and Pinephone will
  now respect this limit.
- rebase on linus/master (5.10-rc6 atm)
- increase I2C clock for sensors and touchscreen/anx7688 from 100kHz to 400kHz
- added patch from https://patchwork.kernel.org/project/dri-devel/cover/20200222024210.18697-1-yuq825@gmail.com/#23237865
  for easier GPU debugging (suggested by bshah)
2020-11-28:
- rebased on linus/master
- replaced my 60FPS fix with a more mainlineable and better working solution from Roman Beranek
- disable 8723cs CONCURRENT_MODE, enable wifi 802.11z TDLS
2020-11-25:
- enable wifi power saving mode (saves 350mW in idle, and doesn't seem to break the wifi so far)
2020-11-25:
- added a new 2020-10 wifi driver and cleaned up to work with PinePhone
- see wifi-5.10 branch
- rebased on linus/master
2020-11-23:
- rebased, added modem power blocking mode (p-boot privacy support)
2020-11-17:
- drop ov5640 AF patch
2020-11-17:
- rebase on linux/master
- fix camera probe
2020-11-15:
- rebase on linux/master
- add "retain LED state in sleep" patch
2020-11-13:
- fix boot failure on pocketbook (see https://www.mail-archive.com/linux-crypto@vger.kernel.org/msg46288.html)
2020-11-13:
- rebase on top of 5.10-rc3+
- update defconfigs
2020-11-10:
- rebase on top of 5.10-rc3
2020-11-01:
- added some musb suspend/resume fixes
- fixed regulator probe on a711
- fix mmc device numbering
- rebase on top of 5.10-rc2
2020-10-31:
- rebased on top of 5.10-rc1+
- added ov5640 autofocus support from Martijn Braam (you'll need /lib/firmware/ov5640_af.bin)
- added fix for DSI panel 36.6 FPS issue (myself)
- import upstreamed variant of audio patches from Samuel
2020-10-25:
- rebased on top of 5.10-rc1
2020-10-19:
- fix orange pi 3 ethernet
2020-10-12:
- fix issue with dsi clock described here: https://xnux.eu/log/#021
- rebase on v5.9 final
- integrate pinetab panel patches from (untested)
  https://gitlab.com/pine64-org/linux/-/commits/pine64-kernel-5.7.y-pinetabpanel/
2020-09-29:
- add a few more codec API fixes from Samuel
2020-09-28:
- rebase on top of 5.9-rc7
- integrated the newest audio patches from Samuel
2020-09-23:
- port battery thermal regulation fix from p-boot (completely untested, see https://xnux.eu/log/#018)
2020-09-18:
- cedrus panic fix
- rebase on linus/master
2020-09-17:
- further modem driver improvements (fix urc setting on old modem firmwares)
2020-09-13:
- rebase on top of 5.9-rc5
2020-09-12:
- rebase on top of 5.9-rc4+
2020-09-10:
- rebase on top of 5.9-rc4+
- further fixes for the modem driver poweron, support for fast poweroff feature
  present on new modem firmware
- added flash DT changes
- add mounting matrix and a kernel command line option to override it (ignore_mount_matrix)
- https://xff.cz/kernels also contains special kernel builds for my multi-dist image
  (see https://xnux.eu/log/)
- enabled opportunistic sleep
- enabled btrfs support
2020-09-01:
- rebase on top of 5.9-rc3
2020-08-19:
- rebase and port to 5.9-rc1
- fix various issues with 5.9-rc1
- fix sleeps in atomic context in anx7688 driver
- dropped panfrost dvfs patches for now (conflicts, stability issues)
- fix modem UART issues on powerup (sometimes not receiving RDY, etc.)
  - root cause was host UART locking up due to noise on RX, and the
    fix is to only open UART port when the modem is powered
2020-08-11:
- fix sun50i-codec-analog probe failure when built-in
2020-08-09:
- pull in codec changes from Samuel
- don't wait for RDY but poll with empty AT command for the modem's status
2020-08-06:
- added Samuel's patch for making recording from the codec work again
2020-08-05:
- modem driver fixes for BH
2020-08-03:
- fixed AC100 driver to make it work without mod clock
2020-08-02:
- integrated latest Samuel's audio patches + rebased my AC100 support on top
- finished the modem-power driver into a hopefully useable state
2020-07-25:
- rebased on top of 5.8-rc7+
- fixed modem driver issue with not shutting down the modem on poweroff/reset
  on PinePhone (introduced during modem driver rewrite around 5.8-rc5)
- worked around AXP reseting input current limit to 500mA regardless of
  BC detection being disabled (happened on boot with USB-C cable connected
  to USB-C PD charger) (and reverted again)
- improved modem driver
  - initialize the modem configuration for proper sleep
  - setup QDAI automatically from DTS
  - show modem firmware version in dmesg
  - added rfkill interface
  - handle URC caching during suspend
2020-07-16:
- added HP jack detection patches from A-wai
2020-07-14:
- added support for Pinebook Pro
- fix issue in my bl_pwm PinePhone patch that broke Pinebook Pro's backlight
2020-07-13:
- rebased on top of 5.8-rc5
- improved HW led trigger API
- more modem-power work (change to serdev, recv messages from the modem)
- support HDMI audio on PinePhone
- bump PD power requirement to 15W on PinePhone
2020-07-08:
- refactoring of the modem driver, moved to modem-5.8 branch (not finished
  yet, see TODO in the driver)
- update pinephone 1.0-1.2 dts to reflect the differences in modem setup
- enable orange pi 3 hdmi audio
2020-07-06:
- rebased on top of 5.8-rc4
2020-07-05:
- Added fixes for PinePhone panel initialization after resume from sleep
2020-07-04:
- Integrated Clément's HDMI audio series (20200704113902.336911-1-peron.clem@gmail.com)
- Integrated Clément's panfrost DVFS series (20200704102535.189647-1-peron.clem@gmail.com)

My kernel's main integration branch is 'orange-pi-$VER' (this one).
No other branch is supposed to work alone. My defconfigs are tested
and work on the boards I support. Read the README.md for more info.

Only my branches based on the current mainline kernel branch are
maintained (those are usually the -rc# kernels!). You can find the
current mainline version here https://www.kernel.org/ (mainline: ...)

My prebuilt kernels can be found at https://xff.cz/kernels/ You can
use them to test that your board works, or just run them without
bothering with building everything yourself. I run them on all my
boards.

My website is https://xnux.eu and may contain useful advice.

Good luck!

     ~megi

  • xfs-5.13-merge-4

    d4f74e16 · xfs: fix xfs_reflink_unshare usage of filemap_write_and_wait_range · 
    More new code for 5.13:
- Rename the log timestamp struct.
- Remove broken transaction counter debugging that wasn't working
  correctly on very old filesystems.
- Various fixes to make pre-lazysbcount filesystems work properly again.
- Fix a free space accounting problem where we neglected to consider
  free space btree blocks that track metadata reservation space when
  deciding whether or not to allow caller to reserve space for
  a metadata update.
- Fix incorrect pagecache clearing behavior during FUNSHARE ops.

  • x86-mm-2021-04-29

    a500fc91 · Merge branch 'locking/core' into x86/mm, to resolve conflict · 
    The x86 MM changes in this cycle were:

 - Implement concurrent TLB flushes, which overlaps the local TLB flush with the
   remote TLB flush. In testing this improved sysbench performance measurably by
   a couple of percentage points, especially if TLB-heavy security mitigations
   are active.

 - Further micro-optimizations to improve the performance of TLB flushes.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

  • v5.11.17

    feaeae9a · Linux 5.11.17 · 
    This is the 5.11.17 stable release

  • v5.10.33

    8bd8301c · Linux 5.10.33 · 
    This is the 5.10.33 stable release

  • v5.4.115

    19bfeb47 · Linux 5.4.115 · 
    This is the 5.4.115 stable release

  • v4.19.189

    97a8651c · Linux 4.19.189 · 
    This is the 4.19.189 stable release

  • v4.14.232

    7d7d1c0a · Linux 4.14.232 · 
    This is the 4.14.232 stable release

  • v4.9.268

    7eafd3bf · Linux 4.9.268 · 
    This is the 4.9.268 stable release

  • v4.4.268

    47127fcd · Linux 4.4.268 · 
    This is the 4.4.268 stable release

  • sched-core-2021-04-28

    2ea46c6f · cpumask/hotplug: Fix cpu_dying() state tracking · 
    Scheduler updates for this cycle are:

 - Clean up SCHED_DEBUG: move the decades old mess of sysctl, procfs and debugfs interfaces
   to a unified debugfs interface.

 - Signals: Allow caching one sigqueue object per task, to improve performance & latencies.

 - Improve newidle_balance() irq-off latencies on systems with a large number of CPU cgroups.

 - Improve energy-aware scheduling

 - Improve the PELT metrics for certain workloads

 - Reintroduce select_idle_smt() to improve load-balancing locality - but without the previous
   regressions

 - Add 'scheduler latency debugging': warn after long periods of pending need_resched. This
   is an opt-in feature that requires the enabling of the LATENCY_WARN scheduler feature,
   or the use of the resched_latency_warn_ms=xx boot parameter.

 - CPU hotplug fixes for HP-rollback, and for the 'fail' interface. Fix remaining
   balance_push() vs. hotplug holes/races

 - PSI fixes, plus allow /proc/pressure/ files to be written by CAP_SYS_RESOURCE tasks as well

 - Fix/improve various load-balancing corner cases vs. capacity margins

 - Fix sched topology on systems with NUMA diameter of 3 or above

 - Fix PF_KTHREAD vs to_kthread() race

 - Minor rseq optimizations

 - Misc cleanups, optimizations, fixes and smaller updates

Signed-off-by: Ingo Molnar <mingo@kernel.org>

  • perf-core-2021-04-28

    ed8e5080 · signal, perf: Add missing TRAP_PERF case in siginfo_layout() · 
    Perf events changes in this cycle were:

 - Improve Intel uncore PMU support:

     - Parse uncore 'discovery tables' - a new hardware capability enumeration method
       introduced on the latest Intel platforms. This table is in a well-defined PCI
       namespace location and is read via MMIO. It is organized in an rbtree.

       These uncore tables will allow the discovery of standard counter blocks, but
       fancier counters still need to be enumerated explicitly.

     - Add Alder Lake support

     - Improve IIO stacks to PMON mapping support on Skylake servers

 - Add Intel Alder Lake PMU support - which requires the introduction of 'hybrid' CPUs
   and PMUs. Alder Lake is a mix of Golden Cove ('big') and Gracemont ('small' - Atom derived)
   cores.

   The CPU-side feature set is entirely symmetrical - but on the PMU side there's
   core type dependent PMU functionality.

 - Reduce data loss with CPU level hardware tracing on Intel PT / AUX profiling, by
   fixing the AUX allocation watermark logic.

 - Improve ring buffer allocation on NUMA systems

 - Put 'struct perf_event' into their separate kmem_cache pool

 - Add support for synchronous signals for select perf events. The immediate motivation
   is to support low-overhead sampling-based race detection for user-space code. The
   feature consists of the following main changes:

    - Add thread-only event inheritance via perf_event_attr::inherit_thread, which limits
      inheritance of events to CLONE_THREAD.

    - Add the ability for events to not leak through exec(), via perf_event_attr::remove_on_exec.

    - Allow the generation of SIGTRAP via perf_event_attr::sigtrap, extend siginfo with an u64
      ::si_perf, and add the breakpoint information to ::si_addr and ::si_perf if the event is
      PERF_TYPE_BREAKPOINT.

   The siginfo support is adequate for breakpoints right now - but the new field can be used
   to introduce support for other types of metadata passed over siginfo as well.

 - Misc fixes, cleanups and smaller updates.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

  • objtool-core-2021-04-28

    7d3d10e0 · x86/crypto: Enable objtool in crypto code · 
    Objtool updates in this cycle were:

 - Standardize the crypto asm code so that it looks like compiler-generated
   code to objtool - so that it can understand it. This enables unwinding
   from crypto asm code - and also fixes the last known remaining objtool
   warnings for LTO and more.

 - x86 decoder fixes: clean up and fix the decoder, and also extend it a bit

 - Misc fixes and cleanups

Signed-off-by: Ingo Molnar <mingo@kernel.org>

  • locking-core-2021-04-28

    f4abe996 · kcsan: Fix printk format string · 
    Locking changes for this cycle were:

 - rtmutex cleanup & spring cleaning pass that removes ~400 lines of code
 - Futex simplifications & cleanups
 - Add debugging to the CSD code, to help track down a tenacious race (or hw problem)
 - Add lockdep_assert_not_held(), to allow code to require a lock to not be held,
   and propagate this into the ath10k driver
 - Misc LKMM documentation updates
 - Misc KCSAN updates: cleanups & documentation updates
 - Misc fixes and cleanups
 - Fix locktorture bugs with ww_mutexes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

  • core-rcu-2021-04-28

    120b566d · Merge branch 'for-mingo-rcu' of... · 
    RCU changes for this cycle were:

 - Bitmap support for "N" as alias for last bit
 - kvfree_rcu updates
 - mm_dump_obj() updates.  (One of these is to mm, but was suggested by Andrew Morton.)
 - RCU callback offloading update
 - Polling RCU grace-period interfaces
 - Realtime-related RCU updates
 - Tasks-RCU updates
 - Torture-test updates
 - Torture-test scripting updates
 - Miscellaneous fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

  • for-5.13/io_uring-2021-04-27

    7b289c38 · io_uring: maintain drain logic for multishot poll requests · 
    for-5.13/io_uring-2021-04-27

  • for-5.13/libata-2021-04-27

    e06abcc6 · libata: Fix fall-through warnings for Clang · 
    for-5.13/libata-2021-04-27

  • for-5.13/drivers-2021-04-27

    8324fbae · Merge branch 'md-next' of... · 
    for-5.13/drivers-2021-04-27