| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull mfd updates from Lee Jones:
"Core Frameworks:
- Fix Software Node clean-up code
New Drivers:
- Add support for MediaTek MT6359 PMIC
- Add support for Qualcomm PM8008 PMIC
- Add support for Richtek RT4831
New Device Support:
- Add support for Audio CODECs to Rockchip RK817
- Add support for Alder Lake-M to Intel LPSS PCI
- Add support for Periph Device Charge to ChromeOS EC
New Functionality:
- Provide additional IRQs for wcd934x
- Add optional Reset functionality to lp87565
Fix-ups:
- Namespacing & visibility fixes to lp87565
- Differentiate between Power and Home key IRQs in mt6358
- Export I2C device tables in da9052-i2c, stmpe-i2c
- Adapt IRQ flags in max8907, rn5t61, max8907
- Make some functions/devices optional in axp20x, cros_ec_dev
- Explicitly include used header files in ioc3
- Remove superfluous lines in MAINTAINERS, sec-core, st,stm32-timers
- Resolve Kerneldoc issues in omap-usb-host, omap-usb-tll, si476x-cmd, si476x-i2c
- Convert arizona-core to a module
- Copyright changes in hi655x-pmic
- Drop support for board file initialisation in sec-core
- Trivial spelling, whitespace etc updates in lp87565, si476x-cmd,
mt6360-core, wm831x-core, twl-core, db8500-prcmu
- Simplify various implementations of wcd934x, mt6360-core, max8997,
max8998, da9052-i2c, da9062-core, sec-core,
- Device Tree binding changes in google,cros-ec,
richtek,rt4831-backlight, db8500-prcmu, qcom,pm8008, qcom,spmi-pmic
- Use provided APIs to simplify t7l66xb, as3722, da9055-core,
tps80031, 88pm800, 88pm805, asic3, sun6i-prcm, wm831x-core,
wm831x-otp, ucb1x00-assabet, timberdale, sm501, pcf50633-core,
kempld-core, janz-cmodio, intel_soc_pmic_bxtwc, ab8500-core
Bug Fixes:
- Fix unused variable warning in rk817_codec
- Fix regulator voltage configuration in rohm-bd71828
- Fix ongoing freeing of regmap_config 'name' issue in syscon
- Fix error handling path in da9063-i2c
- Fix Kconfig issues in MFD_MP2629
- Fix DMA mask warnings in motorola-cpcap"
* tag 'mfd-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (83 commits)
mfd: cros_ec: Add peripheral device charger
mfd: max8907: Remove IRQF_NO_AUTOEN flag
mfd: ab8500-core: Use DEVICE_ATTR_RO/RW macro
mfd: intel_soc_pmic_bxtwc: Use DEVICE_ATTR_ADMIN_RW macro
mfd: janz-cmodio: Use DEVICE_ATTR_RO macro
mfd: kempld-core: Use DEVICE_ATTR_RO macro
mfd: pcf50633: Use DEVICE_ATTR_ADMIN_RO macro
mfd: sm501: Use DEVICE_ATTR_RO macro
mfd: timberdale: Use DEVICE_ATTR_RO macro
mfd: ucb1x00-assabet: Use DEVICE_ATTR_RO macro
mfd: wm831x: Use DEVICE_ATTR_RO macro
mfd: wm831x: Use DEFINE_RES_IRQ_NAMED() and DEFINE_RES_IRQ() to simplify code
dt-bindings: mfd: stm32-timers: Remove #address/size cells from required properties
mfd: sun6i-prcm: Use DEFINE_RES_MEM() to simplify code
mfd: asic3: Use DEFINE_RES_MEM() and DEFINE_RES_IRQ() to simplify code
mfd: 88pm805: Use DEFINE_RES_IRQ_NAMED() to simplify code
mfd: 88pm800: Use DEFINE_RES_IRQ_NAMED() to simplify code
mfd: tps80031: Use DEFINE_RES_IRQ() to simplify code
mfd: da9055: Use DEFINE_RES_IRQ_NAMED() to simplify code
mfd: as3722: Use DEFINE_RES_IRQ_NAMED() to simplify code
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"This time around we have a smaller pull request than usual and this
includes code removal, so should be good!
New drivers/devices
- Support for QCOM SM8250 GPI DMA
- removal of shdma-of driver and binding
Updates:
- arm-pl08x yaml binding move
- altera-msgdma gained DT support
- removal of imx-sdma platform data support
- idxd and xilinx driver updates"
* tag 'dmaengine-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (22 commits)
dmaengine: imx-sdma: Remove platform data header
dmaengine: xilinx: dpdma: Fix spacing around addr[i-1]
dmaengine: xilinx: dpdma: Use kernel type u32 over uint32_t
dmaengine: altera-msgdma: add OF support
MAINTAINERS: add entry for Altera mSGDMA
dt-bindings: dma: add schema for altera-msgdma
dmaengine: xilinx: dpdma: fix kernel-doc
dmaengine: sf-pdma: apply proper spinlock flags in sf_pdma_prep_dma_memcpy()
dmaengine: sh: Remove unused shdma-of driver
dt-bindings: dmaengine: Remove SHDMA Device Tree bindings
dmaengine: qcom: gpi: Add SM8250 compatible
dt-bindings: dmaengine: qcom: gpi: add compatible for sm8250
dmaengine: sun4i: Use list_move_tail instead of list_del/list_add_tail
dmaengine: ti: omap-dma: Skip pointless cpu_pm context restore on errors
dmaengine: hsu: Account transferred bytes
dmaengine: Move kdoc description of struct dma_chan_percpu closer to it
dmaengine: xilinx: dpdma: Print debug message when losing vsync race
dmaengine: xilinx: dpdma: Print channel number in kernel log messages
dt-bindings: dma: convert arm-pl08x to yaml
dmaengine: idxd: remove devm allocation for idxd->int_handles
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson
"MMC core:
- Clear flags before allowing to retune
MMC host:
- sdhci: Clear unused bounce buffer at DMA mmap error path
- sdhci: Fix warning message when accessing RPMB in HS400 mode
- sdhci-of-arasan: Use clock-frequency property to update clk_xin
- mtk-sd: Fixup compatible string for MT8195"
* tag 'mmc-v5.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci: Fix warning message when accessing RPMB in HS400 mode
dt-bindings: mmc: change compatiable string for MT8195 mmc host IP
mmc: sdhci: Clear unused bounce buffer at DMA mmap error path
phy: intel: Fix for warnings due to EMMC clock 175Mhz change in FIP
mmc: sdhci-of-arasan: Use clock-frequency property to update clk_xin
mmc: core: clear flags before allowing to retune
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"One new driver, support for new models in existing ones, dt-bindings
conversions for several modules and improvements all over the place.
Summary:
- new driver for the IDT 79RC3243x GPIO controller
- device tree bindings coversion to YAML for the following drivers:
gpio-rk3328-grf, gpio-omap, gpio-davinci, gpio-zynq, gpio-stp,
gpio-pcf857x
- cleanup of probe functions in many drivers from Alexandru Ardelean,
mostly dropping unnecessary calls to platform_set_drvdata() and
removing error messages where none are needed (handled by the
subsystem already)
- several improvements to the core gpiolib and the sysfs interface
code from Andy Shevchenko
- conversion of the gpio-xilinx driver to using the bitmap API +
improvements of suspend/resume handling + minor tweaks
- convert the gpio-stmpe to using devres helpers exclusively in probe
for improved robustness
- updates for the generic gpio-regmap driver
- updates for the gpio-dwapb driver
- support for a new model in gpio-pca953x
- cleanups in gpio-tegra186, gpio-104-idio-16, gpio-mxs & gpio-xgene
- slight code refactoring of the gpio-zynq driver
- documentation fixes from Mauro Carvalho Chehab
- a bunch of minor tweaks and improvements all over the place"
* tag 'gpio-updates-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (57 commits)
docs: driver-api: gpio: using-gpio.rst: avoid using ReST :doc:`foo` markup
dt-bindings: gpio: pcf857x: Convert to json-schema
gpio: mxs: Prefer unsigned int to bare use of unsigned
dt-bindings: gpio: stp: convert to json-schema
dt-bindings: gpio: zynq: convert bindings to YAML
dt-bindings: gpio: gpio-davinci: Convert to json-schema
gpio: pca953x: Add support for the On Semi pca9655
gpio: gpio-xilinx: update on suspend and resume calls
gpio: zynq: Check return value of irq_get_irq_data
gpio: zynq: Check return value of pm_runtime_get_sync
gpio: zynq: use module_platform_driver to simplify the code
gpio: idt3243x: Fix return value check in idt_gpio_probe()
MAINTAINERS: update ti,omap-gpio.yaml reference
dt-bindings: gpio: Add devicetree binding for IDT 79RC32434 GPIO controller
gpio: Add support for IDT 79RC3243x GPIO controller
gpio: regmap: move drvdata to config data
gpio-dwapb: Drop unused headers and sort the rest
gpio: gpio-regmap: Use devm_add_action_or_reset()
gpio: dwapb: Switch to use fwnode_irq_get()
gpio: dwapb: Drop redundant check in dwapb_irq_set_type()
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for SparkFun Qwiic Joystick
- pm8941-pwrkey driver now supports PMK8350
- a bunch of assorted driver fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (44 commits)
Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
Input: hideep - fix the uninitialized use in hideep_nvm_unlock()
Input: trackpoint - use kobj_to_dev()
Input: atkbd - use kobj_to_dev()
Input: tsc200x-core - use kobj_to_dev()
Input: ims-pcu - use kobj_to_dev()
Input: cros_ec_keyb - use kobj_to_dev() API
dt-bindings: input: touchscreen: st1232: Convert to json-schema
Input: i8042 - fix typos in comments
Input: add SparkFun Qwiic Joystick driver
dt-bindings: Add vendor prefix and bindings for Qwiic Joystick
Input: cy8ctmg110_ts - switch to using gpiod API
Input: cy8ctmg110_ts - switch to using managed resources
Input: cy8ctmg110_ts - use endian helpers when converting data on wire
Input: cy8ctmg110_ts - let I2C core configure wake interrupt
Input: cy8ctmg110_ts - do not hardcode as wakeup source
Input: cy8ctmg110_ts - do not hard code interrupt trigger
Input: cy8ctmg110_ts - rely on platform code to supply interrupt
Input: resistive-adc-touch - fix uninitialized variable 'press'
Input: pm8941-pwrkey - add support for PMK8350 PON_HLOS PMIC peripheral
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Richard Weinberger:
"MTD core changes:
- Convert list_for_each to entry variant
- Use MTD_DEVICE_ATTR_RO/RW() helper macros
- Remove unnecessary OOM messages
- Potential NULL dereference in mtd_otp_size()
- Fix freeing of otp_info buffer
- Create partname and partid debug files for child MTDs
- tests:
- Remove redundant assignment to err
- Fix error return code in mtd_oobtest_init()
- Add OTP NVMEM provider support
- Allow specifying of_node
- Convert sysfs sprintf/snprintf family to sysfs_emit
Bindings changes:
- Convert ti,am654-hbmc.txt to YAML schema
- spi-nor: add otp property
- Add OTP bindings
- add YAML schema for the generic MTD bindings
- Add brcm,trx-magic
MTD device drivers changes:
- Add support for microchip 48l640 EERAM
- Remove superfluous "break"
- sm_ftl:
- Fix alignment of block comment
- nftl:
- Return -ENOMEM when kmalloc failed
- nftlcore:
- Remove set but rewrite variables
- phram:
- Fix error return code in phram_setup()
- plat-ram:
- Remove redundant dev_err call in platram_probe()
MTD parsers changes:
- Qcom:
- Fix leaking of partition name
- Redboot:
- Fix style issues
- Seek fis-index-block in the right node
- trx:
- Allow to use TRX parser on Mediatek SoCs
- Allow to specify brcm, trx-magic in DT
Raw NAND core:
- Allow SDR timings to be nacked
- Bring support for NV-DDR timings which involved a number of small
preparation changes to bring new helpers, properly introduce NV-DDR
structures, fill them, differenciate them and pick the best timing
set.
- Add the necessary infrastructure to parse the new gpio-cs property
which aims at enlarging the number of available CS when a hardware
controller is too constrained.
- Update dead URL
- Silence static checker warning in nand_setup_interface()
- BBT:
- Fix corner case in bad block table handling
- onfi:
- Use more recent ONFI specification wording
- Use the BIT() macro when possible
Raw NAND controller drivers:
- Atmel:
- Ensure the data interface is supported.
- Arasan:
- Finer grain NV-DDR configuration
- Rename the data interface register
- Use the right DMA mask
- Leverage additional GPIO CS
- Ensure proper configuration for the asserted target
- Add support for the NV-DDR interface
- Fix a macro parameter
- brcmnand:
- Convert bindings to json-schema
- OMAP:
- Various fixes and style improvements
- Add larger page NAND chips support
- PL35X:
- New driver
- QCOM:
- Avoid writing to obsolete register
- Delete an unneeded bool conversion
- Allow override of partition parser
- Marvell:
- Minor documentation correction
- Add missing clk_disable_unprepare() on error in
marvell_nfc_resume()
- R852:
- Use DEVICE_ATTR_RO() helper macro
- MTK:
- Remove redundant dev_err call in mtk_ecc_probe()
- HISI504:
- Remove redundant dev_err call in probe
SPI-NAND core:
- Light reorganisation for the introduction of a core resume handler
- Fix double counting of ECC stats
SPI-NAND manufacturer drivers:
- Macronix:
- Add support for serial NAND flash
SPI NOR core changes:
- Ability to dump SFDP tables via sysfs
- Support for erasing OTP regions on Winbond and similar flashes
- Few API doc updates and fixes
- Locking support for MX25L12805D
SPI NOR controller drivers changes:
- Use SPI_MODE_X_MASK in nxp-spifi
- Intel Alder Lake-M SPI serial flash support"
* tag 'mtd/for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (125 commits)
mtd: spi-nor: remove redundant continue statement
mtd: rawnand: omap: Add larger page NAND chips support
mtd: rawnand: omap: Various style fixes
mtd: rawnand: omap: Check return values
mtd: rawnand: omap: Rename a macro
mtd: rawnand: omap: Aggregate the HW configuration of the ELM
mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller
dt-bindings: mtd: pl353-nand: Describe this hardware controller
MAINTAINERS: Add PL353 NAND controller entry
mtd: rawnand: qcom: avoid writing to obsolete register
mtd: rawnand: marvell: Minor documentation correction
mtd: rawnand: r852: use DEVICE_ATTR_RO() helper macro
mtd: spinand: add SPI-NAND MTD resume handler
mtd: spinand: Add spinand_init_flash() helper
mtd: spinand: add spinand_read_cfg() helper
mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
mtd: rawnand: arasan: Finer grain NV-DDR configuration
mtd: rawnand: arasan: Rename the data interface register
mtd: rawnand: onfi: Fix endianness when reading NV-DDR values
mtd: rawnand: arasan: Use the right DMA mask
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu update from Greg Ungerer:
"Fix fix missing LCD splash screen data initializer"
* tag 'm68knommu-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: fix missing LCD splash screen data initializer
|
|
To pick the changes in these csets:
64c2c2c62f92339b ("quota: Change quotactl_path() systcall to an fd-based one")
65ffb3d69ed3da28 ("quota: Wire up quotactl_fd syscall")
That silences these perf build warnings and add support for those new
syscalls in tools such as 'perf trace'.
For instance, this is now possible:
# perf trace -v -e quota*
event qualifier tracepoint filter: (common_pid != 158365 && common_pid != 2512) && (id == 179 || id == 443)
^C#
That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.
$ grep quota tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
179 common quotactl sys_quotactl
443 common quotactl_fd sys_quotactl_fd
$
This addresses these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
Warning: Kernel ABI header at 'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl
Cc: Jan Kara <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Fix some spelling mistakes as follows:
sensitivies ==> sensitivities
pararameters ==> parameters
approxmimation ==> approximation
silet ==> silent
Signed-off-by: gushengxian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
|
|
Fix some spelling mistakes as follows:
altenate ==> alternate
compatbile ==> compatible
perfoms ==> performs
dont'register ==> don't register
periodicaly ==> periodically
arount ==> around
Signed-off-by: gushengxian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
|
|
ALSA bebob driver has duplicated entries for modalias of
'ieee1394:ven00000AACmo00000002sp0000A02Dver00010001' since entries for
two devices below have the same parameters:
* Acoustic Reality eAR Master One, Eroica, Figaro, and Ciaccona
* TerraTec Aureon 7.1 FireWire
I relied on FFADO revision 737 to add the former entry, on the other hand,
the latter is based on message posted by actual user with information of
sysfs node:
* https://sourceforge.net/p/ffado/mailman/ffado-user/thread/5743F969.2080204%40marcobaldo.ch/
It appears that they have OUI of Terratec Electronic GmbH (0x000aac) and
the same model ID, thus suffice to say that they have something common
in their internals.
Although it's not going to make a big difference, this commit arranges
the entries.
Signed-off-by: Takashi Sakamoto <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
|
|
To pick the changes from:
Fixes: 4ca9b3859dac14bb ("mm/madvise: introduce MADV_POPULATE_(READ|WRITE) to prefault page tables")
That result in these changes in the tools:
$ tools/perf/trace/beauty/madvise_behavior.sh > before
$ cp include/uapi/asm-generic/mman-common.h tools/include/uapi/asm-generic/mman-common.h
$ tools/perf/trace/beauty/madvise_behavior.sh > after
$ diff -u before after
--- before 2021-07-05 14:30:15.167212621 -0300
+++ after 2021-07-05 14:30:26.638462594 -0300
@@ -18,6 +18,8 @@
[19] = "KEEPONFORK",
[20] = "COLD",
[21] = "PAGEOUT",
+ [22] = "POPULATE_READ",
+ [23] = "POPULATE_WRITE",
[100] = "HWPOISON",
[101] = "SOFT_OFFLINE",
};
$
I.e. now when madvise gets those behaviours as args, it will be able to
translate from the number to a human readable string.
This addresses the following perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h'
diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h
Cc: David Hildenbrand <[email protected]>
Cc: Linus Torvalds <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Fix some spelling mistakes as follows:
wroong ==> wrong
evrything ==> everything
Signed-off-by: gushengxian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
|
|
Fix some spelling mistakes as follows:
regiter ==> register
confgiuration ==> configuration
playabck ==> playback
platoform ==> platform
Signed-off-by: gushengxian <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
|
|
The HP Pavilion 15-eh1xxx series uses the HP mainboard 88D0 with ALC287 and needs
the ALC287_FIXUP_HP_GPIO_LED quirk to make the mute led working.
Tested with a HP Pavilion 15-eh1557ng.
Signed-off-by: Frank Schäfer <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
|
|
Picking the changes from:
2e290c8d8d29278b ("drm: document minimum kernel version for DRM_CLIENT_CAP_*")
bbf4627ba6415711 ("drm: clarify and linkify DRM_CLIENT_CAP_WRITEBACK_CONNECTORS docs")
88938bf343efbc4d ("drm: reference mode flags in DRM_CLIENT_CAP_* docs")
Silencing these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h'
diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h
No changes in tooling as these are just C comment documentation changes.
Cc: Simon Ser <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
To pick the changes in:
2459e56fd8af0b47 ("drm/i915/uapi: implement object placement extension")
ebcb40298947bdb0 ("drm/i915/uapi: introduce drm_i915_gem_create_ext")
710217292a61110a ("drm/i915/query: Expose memory regions through the query uAPI")
e3bdccafb5bcfab2 ("drm/i915/uapi: convert i915_query and friend to kernel doc")
19d053d477a14506 ("drm/i915/uapi: convert i915_user_extension to kernel doc")
2ef6a01fb636997b ("drm/i915/uapi: fix kernel doc warnings")
That picks a new ioctl:
$ tools/perf/trace/beauty/drm_ioctl.sh > before
$ cp include/uapi/drm/i915_drm.h tools/include/uapi/drm/i915_drm.h
$ tools/perf/trace/beauty/drm_ioctl.sh > after
$ diff -u before after
--- before 2021-07-05 14:25:13.247680316 -0300
+++ after 2021-07-05 14:25:22.454874111 -0300
@@ -166,4 +166,5 @@
[DRM_COMMAND_BASE + 0x39] = "I915_QUERY",
[DRM_COMMAND_BASE + 0x3a] = "I915_GEM_VM_CREATE",
[DRM_COMMAND_BASE + 0x3b] = "I915_GEM_VM_DESTROY",
+ [DRM_COMMAND_BASE + 0x3c] = "I915_GEM_CREATE_EXT",
};
$
Addressing this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Cc: Abdiel Janulgue <[email protected]>
Cc: Matthew Auld <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Picking the changes from:
08fdced60ca08e34 ("ALSA: rawmidi: Add framing mode")
Which entails no changes in the tooling side as it doesn't introduce new
ioctls.
To silence this perf tools build warning:
Warning: Kernel ABI header at 'tools/include/uapi/sound/asound.h' differs from latest version at 'include/uapi/sound/asound.h'
diff -u tools/include/uapi/sound/asound.h include/uapi/sound/asound.h
Cc: David Henningsson <[email protected]>
Cc: Takashi Iwai <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Recently bperf was added to use BPF to count perf events for various
purposes. This is an extension for the approach and targetting to
cgroup usages.
Unlike the other bperf, it doesn't share the events with other
processes but it'd reduce unnecessary events (and the overhead of
multiplexing) for each monitored cgroup within the perf session.
When --for-each-cgroup is used with --bpf-counters, it will open
cgroup-switches event per cpu internally and attach the new BPF
program to read given perf_events and to aggregate the results for
cgroups. It's only called when task is switched to a task in a
different cgroup.
Signed-off-by: Namhyung Kim <[email protected]>
Acked-by: Song Liu <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
Current 'perf report' fails to process a pipe input when --task or
--stat options are used. This is because they reset all the tool
callbacks and fails to find a matching event for a sample.
When pipe input is used, the event info is passed via ATTR records so it
needs to handle that operation. Otherwise the following error occurs.
Note, -14 (= -EFAULT) comes from evlist__parse_sample():
# perf record -a -o- sleep 1 | perf report -i- --stat
Can't parse sample, err = -14
0x271044 [0x38]: failed to process type: 9
Error:
failed to process sample
#
Committer testing:
Before:
$ perf record -o- sleep 1 | perf report -i- --stat
Can't parse sample, err = -14
[ perf record: Woken up 1 times to write data ]
0x1350 [0x30]: failed to process type: 9
Error:
failed to process sample
[ perf record: Captured and wrote 0.000 MB - ]
$
After:
$ perf record -o- sleep 1 | perf report -i- --stat
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.000 MB - ]
Aggregated stats:
TOTAL events: 41
COMM events: 2 ( 4.9%)
EXIT events: 1 ( 2.4%)
SAMPLE events: 9 (22.0%)
MMAP2 events: 4 ( 9.8%)
ATTR events: 1 ( 2.4%)
FINISHED_ROUND events: 1 ( 2.4%)
THREAD_MAP events: 1 ( 2.4%)
CPU_MAP events: 1 ( 2.4%)
EVENT_UPDATE events: 1 ( 2.4%)
TIME_CONV events: 1 ( 2.4%)
FEATURE events: 19 (46.3%)
cycles:uhH stats:
SAMPLE events: 9
$
Fixes: a4a4d0a7a2b20f78 ("perf report: Add --stats option to display quick data statistics")
Signed-off-by: Namhyung Kim <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
|
|
On trogdor devices I see the following lockdep splat when stopping
youtube with lockdep enabled in the kernel.
======================================================
WARNING: possible circular locking dependency detected
5.13.0-rc2 #71 Not tainted
------------------------------------------------------
ThreadPoolSingl/3969 is trying to acquire lock:
ffffff80d4d5c080 (&inst->lock#3){+.+.}-{3:3}, at: vdec_buf_cleanup+0x3c/0x17c [venus_dec]
but task is already holding lock:
ffffff80d3c3c4f8 (&q->mmap_lock){+.+.}-{3:3}, at: vb2_core_reqbufs+0xe4/0x390 [videobuf2_common]
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #5 (&q->mmap_lock){+.+.}-{3:3}:
__mutex_lock_common+0xcc/0xb88
mutex_lock_nested+0x5c/0x68
vb2_mmap+0xf4/0x290 [videobuf2_common]
v4l2_m2m_fop_mmap+0x44/0x50 [v4l2_mem2mem]
v4l2_mmap+0x5c/0xa4
mmap_region+0x310/0x5a4
do_mmap+0x348/0x43c
vm_mmap_pgoff+0xfc/0x178
ksys_mmap_pgoff+0x84/0xfc
__arm64_compat_sys_aarch32_mmap2+0x2c/0x38
invoke_syscall+0x54/0x110
el0_svc_common+0x88/0xf0
do_el0_svc_compat+0x28/0x34
el0_svc_compat+0x24/0x34
el0_sync_compat_handler+0xc0/0xf0
el0_sync_compat+0x19c/0x1c0
-> #4 (&mm->mmap_lock){++++}-{3:3}:
__might_fault+0x60/0x88
filldir64+0x124/0x3a0
dcache_readdir+0x7c/0x1ec
iterate_dir+0xc4/0x184
__arm64_sys_getdents64+0x78/0x170
invoke_syscall+0x54/0x110
el0_svc_common+0xa8/0xf0
do_el0_svc_compat+0x28/0x34
el0_svc_compat+0x24/0x34
el0_sync_compat_handler+0xc0/0xf0
el0_sync_compat+0x19c/0x1c0
-> #3 (&sb->s_type->i_mutex_key#3){++++}-{3:3}:
down_write+0x94/0x1f4
start_creating+0xb0/0x174
debugfs_create_dir+0x28/0x138
opp_debug_register+0x88/0xc0
_add_opp_dev+0x84/0x9c
_add_opp_table_indexed+0x16c/0x310
_of_add_table_indexed+0x70/0xb5c
dev_pm_opp_of_add_table_indexed+0x20/0x2c
of_genpd_add_provider_onecell+0xc4/0x1c8
rpmhpd_probe+0x21c/0x278
platform_probe+0xb4/0xd4
really_probe+0x140/0x35c
driver_probe_device+0x90/0xcc
__device_attach_driver+0xa4/0xc0
bus_for_each_drv+0x8c/0xd8
__device_attach+0xc4/0x150
device_initial_probe+0x20/0x2c
bus_probe_device+0x40/0xa4
device_add+0x22c/0x3fc
of_device_add+0x44/0x54
of_platform_device_create_pdata+0xb0/0xf4
of_platform_bus_create+0x1d0/0x350
of_platform_populate+0x80/0xd4
devm_of_platform_populate+0x64/0xb0
rpmh_rsc_probe+0x378/0x3dc
platform_probe+0xb4/0xd4
really_probe+0x140/0x35c
driver_probe_device+0x90/0xcc
__device_attach_driver+0xa4/0xc0
bus_for_each_drv+0x8c/0xd8
__device_attach+0xc4/0x150
device_initial_probe+0x20/0x2c
bus_probe_device+0x40/0xa4
device_add+0x22c/0x3fc
of_device_add+0x44/0x54
of_platform_device_create_pdata+0xb0/0xf4
of_platform_bus_create+0x1d0/0x350
of_platform_bus_create+0x21c/0x350
of_platform_populate+0x80/0xd4
of_platform_default_populate_init+0xb8/0xd4
do_one_initcall+0x1b4/0x400
do_initcall_level+0xa8/0xc8
do_initcalls+0x5c/0x9c
do_basic_setup+0x2c/0x38
kernel_init_freeable+0x1a4/0x1ec
kernel_init+0x20/0x118
ret_from_fork+0x10/0x30
-> #2 (gpd_list_lock){+.+.}-{3:3}:
__mutex_lock_common+0xcc/0xb88
mutex_lock_nested+0x5c/0x68
__genpd_dev_pm_attach+0x70/0x18c
genpd_dev_pm_attach_by_id+0xe4/0x158
genpd_dev_pm_attach_by_name+0x48/0x60
dev_pm_domain_attach_by_name+0x2c/0x38
dev_pm_opp_attach_genpd+0xac/0x160
vcodec_domains_get+0x94/0x14c [venus_core]
core_get_v4+0x150/0x188 [venus_core]
venus_probe+0x138/0x444 [venus_core]
platform_probe+0xb4/0xd4
really_probe+0x140/0x35c
driver_probe_device+0x90/0xcc
device_driver_attach+0x58/0x7c
__driver_attach+0xc8/0xe0
bus_for_each_dev+0x88/0xd4
driver_attach+0x30/0x3c
bus_add_driver+0x10c/0x1e0
driver_register+0x70/0x108
__platform_driver_register+0x30/0x3c
0xffffffde113e1044
do_one_initcall+0x1b4/0x400
do_init_module+0x64/0x1fc
load_module+0x17f4/0x1958
__arm64_sys_finit_module+0xb4/0xf0
invoke_syscall+0x54/0x110
el0_svc_common+0x88/0xf0
do_el0_svc_compat+0x28/0x34
el0_svc_compat+0x24/0x34
el0_sync_compat_handler+0xc0/0xf0
el0_sync_compat+0x19c/0x1c0
-> #1 (&opp_table->genpd_virt_dev_lock){+.+.}-{3:3}:
__mutex_lock_common+0xcc/0xb88
mutex_lock_nested+0x5c/0x68
_set_required_opps+0x74/0x120
_set_opp+0x94/0x37c
dev_pm_opp_set_rate+0xa0/0x194
core_clks_set_rate+0x28/0x58 [venus_core]
load_scale_v4+0x228/0x2b4 [venus_core]
session_process_buf+0x160/0x198 [venus_core]
venus_helper_vb2_buf_queue+0xcc/0x130 [venus_core]
vdec_vb2_buf_queue+0xc4/0x140 [venus_dec]
__enqueue_in_driver+0x164/0x188 [videobuf2_common]
vb2_core_qbuf+0x13c/0x47c [videobuf2_common]
vb2_qbuf+0x88/0xec [videobuf2_v4l2]
v4l2_m2m_qbuf+0x84/0x15c [v4l2_mem2mem]
v4l2_m2m_ioctl_qbuf+0x24/0x30 [v4l2_mem2mem]
v4l_qbuf+0x54/0x68
__video_do_ioctl+0x2bc/0x3bc
video_usercopy+0x558/0xb04
video_ioctl2+0x24/0x30
v4l2_ioctl+0x58/0x68
v4l2_compat_ioctl32+0x84/0xa0
__arm64_compat_sys_ioctl+0x12c/0x140
invoke_syscall+0x54/0x110
el0_svc_common+0x88/0xf0
do_el0_svc_compat+0x28/0x34
el0_svc_compat+0x24/0x34
el0_sync_compat_handler+0xc0/0xf0
el0_sync_compat+0x19c/0x1c0
-> #0 (&inst->lock#3){+.+.}-{3:3}:
__lock_acquire+0x248c/0x2d6c
lock_acquire+0x240/0x314
__mutex_lock_common+0xcc/0xb88
mutex_lock_nested+0x5c/0x68
vdec_buf_cleanup+0x3c/0x17c [venus_dec]
__vb2_queue_free+0x98/0x204 [videobuf2_common]
vb2_core_reqbufs+0x14c/0x390 [videobuf2_common]
vb2_reqbufs+0x58/0x74 [videobuf2_v4l2]
v4l2_m2m_reqbufs+0x58/0x90 [v4l2_mem2mem]
v4l2_m2m_ioctl_reqbufs+0x24/0x30 [v4l2_mem2mem]
v4l_reqbufs+0x58/0x6c
__video_do_ioctl+0x2bc/0x3bc
video_usercopy+0x558/0xb04
video_ioctl2+0x24/0x30
v4l2_ioctl+0x58/0x68
v4l2_compat_ioctl32+0x84/0xa0
__arm64_compat_sys_ioctl+0x12c/0x140
invoke_syscall+0x54/0x110
el0_svc_common+0x88/0xf0
do_el0_svc_compat+0x28/0x34
el0_svc_compat+0x24/0x34
el0_sync_compat_handler+0xc0/0xf0
el0_sync_compat+0x19c/0x1c0
other info that might help us debug this:
Chain exists of:
&inst->lock#3 --> &mm->mmap_lock --> &q->mmap_lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&q->mmap_lock);
lock(&mm->mmap_lock);
lock(&q->mmap_lock);
lock(&inst->lock#3);
*** DEADLOCK ***
1 lock held by ThreadPoolSingl/3969:
#0: ffffff80d3c3c4f8 (&q->mmap_lock){+.+.}-{3:3}, at: vb2_core_reqbufs+0xe4/0x390 [videobuf2_common]
stack backtrace:
CPU: 2 PID: 3969 Comm: ThreadPoolSingl Not tainted 5.13.0-rc2 #71
Hardware name: Google Lazor (rev3+) with KB Backlight (DT)
Call trace:
dump_backtrace+0x0/0x1b4
show_stack+0x24/0x30
dump_stack+0xe0/0x15c
print_circular_bug+0x32c/0x388
check_noncircular+0x138/0x140
__lock_acquire+0x248c/0x2d6c
lock_acquire+0x240/0x314
__mutex_lock_common+0xcc/0xb88
mutex_lock_nested+0x5c/0x68
vdec_buf_cleanup+0x3c/0x17c [venus_dec]
__vb2_queue_free+0x98/0x204 [videobuf2_common]
vb2_core_reqbufs+0x14c/0x390 [videobuf2_common]
vb2_reqbufs+0x58/0x74 [videobuf2_v4l2]
v4l2_m2m_reqbufs+0x58/0x90 [v4l2_mem2mem]
v4l2_m2m_ioctl_reqbufs+0x24/0x30 [v4l2_mem2mem]
v4l_reqbufs+0x58/0x6c
__video_do_ioctl+0x2bc/0x3bc
video_usercopy+0x558/0xb04
video_ioctl2+0x24/0x30
v4l2_ioctl+0x58/0x68
v4l2_compat_ioctl32+0x84/0xa0
__arm64_compat_sys_ioctl+0x12c/0x140
invoke_syscall+0x54/0x110
el0_svc_common+0x88/0xf0
do_el0_svc_compat+0x28/0x34
el0_svc_compat+0x24/0x34
el0_sync_compat_handler+0xc0/0xf0
el0_sync_compat+0x19c/0x1c0
The 'gpd_list_lock' is nominally named as such to protect the 'gpd_list'
from concurrent access and mutation. Unfortunately, holding that mutex
around various OPP framework calls leads to lockdep splats because now
we're doing various operations in OPP core such as registering with
debugfs while holding the list lock. We don't need to hold any list
mutex while we're calling into OPP, so let's shrink the locking area of
the 'gpd_list_lock' so that lockdep isn't triggered. This also helps
reduce contention on this lock, which probably doesn't matter much but
at least is nice to have.
Cc: Len Brown <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: <[email protected]>
Cc: Viresh Kumar <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
Reviewed-by: Ulf Hansson <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
|
|
Although it compiles, the test robot correctly noted:
'cifsacl.h' file not found with <angled> include; use "quotes" instead
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Use DISABLE_BRANCH_PROFILING for arch/mips/boot/compressed/decompress.o
to prevent linkage errors.
mips64-linux-ld: arch/mips/boot/compressed/decompress.o: in function `LZ4_decompress_fast_extDict':
decompress.c:(.text+0x8c): undefined reference to `ftrace_likely_update'
mips64-linux-ld: decompress.c:(.text+0xf4): undefined reference to `ftrace_likely_update'
mips64-linux-ld: decompress.c:(.text+0x200): undefined reference to `ftrace_likely_update'
mips64-linux-ld: decompress.c:(.text+0x230): undefined reference to `ftrace_likely_update'
mips64-linux-ld: decompress.c:(.text+0x320): undefined reference to `ftrace_likely_update'
mips64-linux-ld: arch/mips/boot/compressed/decompress.o:decompress.c:(.text+0x3f4): more undefined references to `ftrace_likely_update' follow
Fixes: e76e1fdfa8f8 ("lib: add support for LZ4-compressed kernel")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: [email protected]
Cc: Kyungsik Lee <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
|
|
My series to clean up the unaligned access implementation
across architectures caused some mips randconfig builds to
fail with:
mips64-linux-ld: arch/mips/boot/compressed/decompress.o: in function `decompress_kernel':
decompress.c:(.text.decompress_kernel+0x54): undefined reference to `__bswapsi2'
It turns out that this problem has already been fixed for the XZ
decompressor but now it also shows up in (at least) LZO and LZ4. From my
analysis I concluded that the compiler could always have emitted those
calls, but the different implementation allowed it to make otherwise
better decisions about not inlining the byteswap, which results in the
link error when the out-of-line code is missing.
While it could be addressed by adding it to the two decompressor
implementations that are known to be affected, but as this only adds
112 bytes to the kernel, the safer choice is to always add them.
Fixes: c50ec6787536 ("MIPS: zboot: Fix the build with XZ compression on older GCC versions")
Fixes: 0652035a5794 ("asm-generic: unaligned: remove byteshift helpers")
Link: https://lore.kernel.org/linux-mm/[email protected]/
Link: https://lore.kernel.org/linux-mm/[email protected]/
Link: https://lore.kernel.org/linux-mm/[email protected]/
Link: https://lore.kernel.org/linux-mm/[email protected]/
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
|
|
This is a smatch warning:
arch/powerpc/sysdev/xive/common.c:1161 xive_request_ipi() warn: unsigned 'xid->irq' is never less than zero.
Fixes: fd6db2892eba ("powerpc/xive: Modernize XIVE-IPI domain with an 'alloc' handler")
Cc: [email protected] # v5.13
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Cédric Le Goater <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
Commit 91c960b0056672 ("bpf: Rename BPF_XADD and prepare to encode other
atomics in .imm") converted BPF_XADD to BPF_ATOMIC and updated all JIT
implementations to reject JIT'ing instructions with an immediate value
different from BPF_ADD. However, ppc32 BPF JIT was implemented around
the same time and didn't include the same change. Update the ppc32 JIT
accordingly.
Fixes: 51c66ad849a7 ("powerpc/bpf: Implement extended BPF on PPC32")
Cc: [email protected] # v5.13+
Signed-off-by: Naveen N. Rao <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/426699046d89fe50f66ecf74bd31c01eda976ba5.1625145429.git.naveen.n.rao@linux.vnet.ibm.com
|
|
Commit 91c960b0056672 ("bpf: Rename BPF_XADD and prepare to encode other
atomics in .imm") converted BPF_XADD to BPF_ATOMIC and added a way to
distinguish instructions based on the immediate field. Existing JIT
implementations were updated to check for the immediate field and to
reject programs utilizing anything more than BPF_ADD (such as BPF_FETCH)
in the immediate field.
However, the check added to powerpc64 JIT did not look at the correct
BPF instruction. Due to this, such programs would be accepted and
incorrectly JIT'ed resulting in soft lockups, as seen with the atomic
bounds test. Fix this by looking at the correct immediate value.
Fixes: 91c960b0056672 ("bpf: Rename BPF_XADD and prepare to encode other atomics in .imm")
Reported-by: Jiri Olsa <[email protected]>
Signed-off-by: Naveen N. Rao <[email protected]>
Tested-by: Jiri Olsa <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/4117b430ffaa8cd7af042496f87fd7539e4f17fd.1625145429.git.naveen.n.rao@linux.vnet.ibm.com
|
|
The powerpc kernel is not prepared to handle exec faults from kernel.
Especially, the function is_exec_fault() will return 'false' when an
exec fault is taken by kernel, because the check is based on reading
current->thread.regs->trap which contains the trap from user.
For instance, when provoking a LKDTM EXEC_USERSPACE test,
current->thread.regs->trap is set to SYSCALL trap (0xc00), and
the fault taken by the kernel is not seen as an exec fault by
set_access_flags_filter().
Commit d7df2443cd5f ("powerpc/mm: Fix spurious segfaults on radix
with autonuma") made it clear and handled it properly. But later on
commit d3ca587404b3 ("powerpc/mm: Fix reporting of kernel execute
faults") removed that handling, introducing test based on error_code.
And here is the problem, because on the 603 all upper bits of SRR1
get cleared when the TLB instruction miss handler bails out to ISI.
Until commit cbd7e6ca0210 ("powerpc/fault: Avoid heavy
search_exception_tables() verification"), an exec fault from kernel
at a userspace address was indirectly caught by the lack of entry for
that address in the exception tables. But after that commit the
kernel mainly relies on KUAP or on core mm handling to catch wrong
user accesses. Here the access is not wrong, so mm handles it.
It is a minor fault because PAGE_EXEC is not set,
set_access_flags_filter() should set PAGE_EXEC and voila.
But as is_exec_fault() returns false as explained in the beginning,
set_access_flags_filter() bails out without setting PAGE_EXEC flag,
which leads to a forever minor exec fault.
As the kernel is not prepared to handle such exec faults, the thing to
do is to fire in bad_kernel_fault() for any exec fault taken by the
kernel, as it was prior to commit d3ca587404b3.
Fixes: d3ca587404b3 ("powerpc/mm: Fix reporting of kernel execute faults")
Cc: [email protected] # v4.14+
Signed-off-by: Christophe Leroy <[email protected]>
Acked-by: Nicholas Piggin <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/024bb05105050f704743a0083fe3548702be5706.1625138205.git.christophe.leroy@csgroup.eu
|
|
FTRACE_ADDR is only defined when CONFIG_DYNAMIC_FTRACE is defined, the
latter is even stronger requirement than CONFIG_FUNCTION_TRACER (which is
enough for MCOUNT_ADDR).
Link: https://lists.01.org/hyperkitty/list/[email protected]/thread/ZUVCQBHDMFVR7CCB7JPESLJEWERZDJ3T/
Fixes: 1f12fb25c5c5d22f ("ARM: 9079/1: ftrace: Add MODULE_PLTS support")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Alexander Sverdlin <[email protected]>
Signed-off-by: Russell King <[email protected]>
|
|
This patch provides support for new dynamic AP bus message limit
with the existing zcrypt device driver and AP bus core code.
There is support for a new field 'ml' from TAPQ query. The field
gives if != 0 the AP bus limit for this card in 4k chunk units.
The actual message size limit per card is shown as a new read-only
sysfs attribute. The sysfs attribute
/sys/devices/ap/cardxx/max_msg_size
shows the upper limit in bytes used by the AP bus and zcrypt device
driver for requests and replies send to and received from this card.
Currently up to CEX7 support only max 12kB msg size and thus the field
shows 12288 meaning the upper limit of a valid msg for this card is
12kB. Please note that the usable payload is somewhat lower and
depends on the msg type and thus the header struct which is to be
prepended by the zcrypt dd.
The dispatcher responsible for choosing the right card and queue is
aware of the individual card AP bus message limit. So a request is
only assigned to a queue of a card which is able to handle the size of
the request (e.g. a 14kB request will never go to a max 12kB card).
If no such card is found the ioctl will fail with ENODEV.
The reply buffer held by the device driver is determined by the ml
field of the TAPQ for this card. If a response from the card exceeds
this limit however, the response is not truncated but the ioctl for
this request will fail with errno EMSGSIZE to indicate that the device
driver has dropped the response because it would overflow the buffer
limit.
If the request size does not indicate to the dispatcher that an
adapter with extended limit is to be used, a random card will be
chosen when no specific card is addressed (ANY addressing). This may
result in an ioctl failure when the reply size needs an adapter with
extended limit but the randomly chosen one is not capable of handling
the broader reply size. The user space application needs to use
dedicated addressing to forward such a request only to suitable cards
to get requests like this processed properly.
Signed-off-by: Harald Freudenberger <[email protected]>
Reviewed-by: Ingo Tuchscherer <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
"dummy" is not only used as output but also as input. Therefore use
the correct "+" constraint modifier.
Fixes: 8cf23c8e1fec ("s390/lib,string: get rid of register asm")
Reported-by: Sven Schnelle <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
Commit cf6acb8bdb1d ("s390/cpumf: Add support for complete counter set extraction")
allows access to the CPU Measurement Counter Facility via character
device /dev/hwctr. The access was exclusive via this device or
via perf_event_open() system call. Only one path at a time was
permitted. The CPU Measurement Counter Facility device driver blocked
access to other processes.
This patch removes this restriction and allows concurrent access to
the CPU Measurement Counter Facility from multiple processes at the same
time via perf_event_open() SVC and via /dev/hwctr device. The access
via /dev/hwctr device is still exclusive, only one process is allowed to
access this device.
This patch
- moves the /dev/hwctr device access from file perf_cpum_cf_diag.c.
to file perf_cpum_cf.c.
- use only one trace buffer .../s390dbf/cpum_cf.
- remove cfset_csd structure and includes its members it into the
structure cpu_cf_events. This results in one data structure and
simplifies the access.
- rework function familiy ctr_set_enable, ctr_set_disable, ctr_set_start
and ctr_set_stop which operate on a counter set number.
Now they operate on a counter set bit mask.
- move CF_DIAG event functionality to file perf_cpum_cf.c. It now
contains the complete functionality of the CPU Measurement Counter
Facility:
- Performance measurement support for counters using perf stat.
- Support for complete counter set extraction with device /dev/hwctr.
- Support for counter set extraction event CF_DIAG attached to
samples using perf record.
- removes file perf_cpum_cf_diag.c
Signed-off-by: Thomas Richter <[email protected]>
Reviewed-by: Sumanth Korikkar <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
This update partially reverts commit 3037a52f9846 ("s390/nmi:
do register validation as early as possible").
Storage error checks and control registers validation are left
in the assembler code, since correct ASCEs and page tables are
required to enable DAT - which is done before the C handler is
entered.
System damage, kernel instruction address and PSW MWP checks
are left in the assembler code as well, since there is no way
to proceed if one of these checks is failed.
The getcpu vdso syscall reads CPU number from the programmable
field of the TOD clock. Disregard the TOD programmable register
validity bit and load the CPU number into the TOD programmable
field unconditionally.
Signed-off-by: Alexander Gordeev <[email protected]>
Reviewed-by: Heiko Carstens <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
The magic string "S390EP" at offset 0x10008 indicated to the decompressed
kernel that it was booted by the decompressor. Introduce a new bootdata
flag instead which conveys the same information in an explicit and
a cleaner way. But keep the magic string because it is a kernel ABI.
Signed-off-by: Alexander Egorenkov <[email protected]>
Reviewed-by: Vasily Gorbik <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
This update puts in order MCCK_CODE_CPU_TIMER_VALID code definition.
Signed-off-by: Alexander Gordeev <[email protected]>
Reviewed-by: Heiko Carstens <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
The current storage errors tackling is wrong - the DAT is
enabled in assembler code before the actual storage checks
in C half are executed. In case the page tables themselves
are damaged such approach is not going to work.
With this update unrecoverable storage errors are not
passed to C code for handling, but rather the machine
is stopped right away. The only exception to this flow
is when a machine check occurred in KVM guest - in this
case the errors are reinjected by the handler.
Signed-off-by: Alexander Gordeev <[email protected]>
Reviewed-by: Heiko Carstens <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
The machine check handler must be entered with DAT disabled
in case control registers are corrupted or a storage error
happened and we can not tell if such error corresponds to a
page table.
Both of described conditions end up in stopping all CPUs and
entering the disabled wait in C half of the handler. However,
the storage errors are still checked after the DAT is enabled
and C code is entered. In case a page table is damaged such
flow is not expected to work.
This update paves the way for moving the storage error checks
from C to assembler half. All fatal errors that can only be
handled with DAT disabled are handled in assembler half also.
As result, the C half is only entered if the DAT is secured.
Signed-off-by: Alexander Gordeev <[email protected]>
Reviewed-by: Heiko Carstens <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
In case of the !CONFIG_KVM use "jz" instead of "jnz" when
detecting user mode and get rid of unnecessary jump as result.
Signed-off-by: Alexander Gordeev <[email protected]>
Reviewed-by: Christia Borntraeger <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
Factor out SIEEXIT macro and use it instead of cleanup_sie
routine. As a side effect %r13 and %r14 are spared.
Signed-off-by: Alexander Gordeev <[email protected]>
Reviewed-by: Christia Borntraeger <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
General register 0 is clobbered within the inline assembly and
therefore must be listed in the clobber list.
Fixes: d1e18efa8fa9 ("s390/lib,uaccess: get rid of register asm")
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
Turns out that the bit 61 in the TEID is not always 1 and if that's
the case the address space ID and the address are
unpredictable. Without an address and its address space ID we can't
export memory and hence we can only send a SIGSEGV to the process or
panic the kernel depending on who caused the exception.
Unfortunately bit 61 is only reliable if we have the "misc" UV feature
bit.
Signed-off-by: Janosch Frank <[email protected]>
Reviewed-by: Christian Borntraeger <[email protected]>
Fixes: 084ea4d611a3d ("s390/mm: add (non)secure page access exceptions handlers")
Cc: [email protected]
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
Use is_kernel() helper instead of is_kernel_addr().
[[email protected]: add missing unsigned long cast]
Cc: Vasily Gorbik <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Signed-off-by: Kefeng Wang <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
|
|
Restore two hunks from commit:
6333e8f73b83 ("static_call: Avoid kprobes on inline static_call()s")
that went walkabout in a Git merge commit.
Fixes: 76d4acf22b48 ("Merge tag 'perf-kprobes-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip")
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
|
|
It turns out that static_call_text_reserved() was reporting __init
text as being reserved past the time when the __init text was freed
and re-used.
This is mostly harmless and will at worst result in refusing a kprobe.
Fixes: 6333e8f73b83 ("static_call: Avoid kprobes on inline static_call()s")
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Reviewed-by: Masami Hiramatsu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
It turns out that jump_label_text_reserved() was reporting __init text
as being reserved past the time when the __init text was freed and
re-used.
For a long time, this resulted in, at worst, not being able to kprobe
text that happened to land at the re-used address. However a recent
commit e7bf1ba97afd ("jump_label, x86: Emit short JMP") made it a
fatal mistake because it now needs to read the instruction in order to
determine the conflict -- an instruction that's no longer there.
Fixes: 4c3ef6d79328 ("jump label: Add jump_label_text_reserved() to reserve jump points")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Reviewed-by: Masami Hiramatsu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
!CONFIG_PROVE_LOCKING
When enabling CONFIG_LOCK_STAT=y, then CONFIG_LOCKDEP=y is forcedly enabled,
but CONFIG_PROVE_LOCKING is disabled.
We can get output from /proc/lockdep, which currently includes usages of
lock classes. But the usages are meaningless, see the output below:
/ # cat /proc/lockdep
all lock classes:
ffffffff9af63350 ....: cgroup_mutex
ffffffff9af54eb8 ....: (console_sem).lock
ffffffff9af54e60 ....: console_lock
ffffffff9ae74c38 ....: console_owner_lock
ffffffff9ae74c80 ....: console_owner
ffffffff9ae66e60 ....: cpu_hotplug_lock
Only one usage context for each lock, this is because each usage is only
changed in mark_lock() that is in the CONFIG_PROVE_LOCKING=y section,
however in the test situation, it's not.
The fix is to move the usages reading and seq_print from the
!CONFIG_PROVE_LOCKING section to its defined section.
Also, locks_after list of lock_class is empty when !CONFIG_PROVE_LOCKING,
so do the same thing as what have done for usages of lock classes.
With this patch with !CONFIG_PROVE_LOCKING we can get the results below:
/ # cat /proc/lockdep
all lock classes:
ffffffff85163290: cgroup_mutex
ffffffff85154dd8: (console_sem).lock
ffffffff85154d80: console_lock
ffffffff85074b58: console_owner_lock
ffffffff85074ba0: console_owner
ffffffff85066d60: cpu_hotplug_lock
... a class key and the relevant class name each line.
Signed-off-by: Xiongwei Song <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Acked-by: Waiman Long <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
|
|
The sk_user_data pointer is supposed to be modified only while
holding the write_lock "sk_callback_lock", otherwise
we could race with other threads and crash the kernel.
we can't take the write_lock in nvmet_tcp_state_change()
because it would cause a deadlock, but the release_work queue
will set the pointer to NULL later so we can simply remove
the assignment.
Fixes: b5332a9f3f3d ("nvmet-tcp: fix incorrect locking in state_change sk callback")
Signed-off-by: Maurizio Lombardi <[email protected]>
Reviewed-by: Sagi Grimberg <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
|
|
Sync include/xen/interface/io/ring.h with Xen's newest version in
order to get the RING_COPY_RESPONSE() and RING_RESPONSE_PROD_OVERFLOW()
macros.
Note that this will correct the wrong license info by adding the
missing original copyright notice.
Signed-off-by: Juergen Gross <[email protected]>
|
|
Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.
Signed-off-by: YueHaibing <[email protected]>
Reviewed-by: Boris Ostrovsky <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
|
|
Prepare input updates for 5.14 merge window.
|