Commit Graph

2178 Commits

Author SHA1 Message Date
Linus Torvalds
f1f2f614d5 Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity updates from Mimi Zohar:
 "The major feature in this time is IMA support for measuring and
  appraising appended file signatures. In addition are a couple of bug
  fixes and code cleanup to use struct_size().

  In addition to the PE/COFF and IMA xattr signatures, the kexec kernel
  image may be signed with an appended signature, using the same
  scripts/sign-file tool that is used to sign kernel modules.

  Similarly, the initramfs may contain an appended signature.

  This contained a lot of refactoring of the existing appended signature
  verification code, so that IMA could retain the existing framework of
  calculating the file hash once, storing it in the IMA measurement list
  and extending the TPM, verifying the file's integrity based on a file
  hash or signature (eg. xattrs), and adding an audit record containing
  the file hash, all based on policy. (The IMA support for appended
  signatures patch set was posted and reviewed 11 times.)

  The support for appended signature paves the way for adding other
  signature verification methods, such as fs-verity, based on a single
  system-wide policy. The file hash used for verifying the signature and
  the signature, itself, can be included in the IMA measurement list"

* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  ima: ima_api: Use struct_size() in kzalloc()
  ima: use struct_size() in kzalloc()
  sefltest/ima: support appended signatures (modsig)
  ima: Fix use after free in ima_read_modsig()
  MODSIGN: make new include file self contained
  ima: fix freeing ongoing ahash_request
  ima: always return negative code for error
  ima: Store the measurement again when appraising a modsig
  ima: Define ima-modsig template
  ima: Collect modsig
  ima: Implement support for module-style appended signatures
  ima: Factor xattr_verify() out of ima_appraise_measurement()
  ima: Add modsig appraise_type option for module-style appended signatures
  integrity: Select CONFIG_KEYS instead of depending on it
  PKCS#7: Introduce pkcs7_get_digest()
  PKCS#7: Refactor verify_pkcs7_signature()
  MODSIGN: Export module signature definitions
  ima: initialize the "template" field with the default template
2019-09-27 19:37:27 -07:00
Linus Torvalds
7bccb9f10c linux-watchdog 5.4-rc1 tag
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Merge tag 'linux-watchdog-5.4-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - addition of AST2600, i.MX7ULP and F81803 watchdog support

 - removal of the w90x900 and ks8695 drivers

 - ziirave_wdt improvements

 - small fixes and improvements

* tag 'linux-watchdog-5.4-rc1' of git://www.linux-watchdog.org/linux-watchdog: (51 commits)
  watchdog: f71808e_wdt: Add F81803 support
  watchdog: qcom: remove unnecessary variable from private storage
  watchdog: qcom: support pre-timeout when the bark irq is available
  watchdog: imx_sc: this patch just fixes whitespaces
  watchdog: apseed: Add access_cs0 option for alt-boot
  watchdog: aspeed: add support for dual boot
  watchdog: orion_wdt: use timer1 as a pretimeout
  watchdog: Add i.MX7ULP watchdog support
  dt-bindings: watchdog: Add i.MX7ULP bindings
  dt-bindings: watchdog: sun4i: Add the watchdog clock
  dt-bindings: watchdog: sun4i: Add the watchdog interrupts
  dt-bindings: watchdog: Convert Allwinner watchdog to a schema
  dt-bindings: watchdog: Add YAML schemas for the generic watchdog bindings
  watchdog: aspeed: Add support for AST2600
  dt-bindings: watchdog: Add ast2600 compatible
  watchdog: ziirave_wdt: Update checked I2C functionality mask
  watchdog: ziirave_wdt: Drop ziirave_firm_write_block_data()
  watchdog: ziirave_wdt: Fix DOWNLOAD_START payload
  watchdog: ziirave_wdt: Drop status polling code
  watchdog: ziirave_wdt: Fix RESET_PROCESSOR payload
  ...
2019-09-27 11:17:38 -07:00
Linus Torvalds
9c9fa97a8e Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:

 - a few hot fixes

 - ocfs2 updates

 - almost all of -mm (slab-generic, slab, slub, kmemleak, kasan,
   cleanups, debug, pagecache, memcg, gup, pagemap, memory-hotplug,
   sparsemem, vmalloc, initialization, z3fold, compaction, mempolicy,
   oom-kill, hugetlb, migration, thp, mmap, madvise, shmem, zswap,
   zsmalloc)

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (132 commits)
  mm/zsmalloc.c: fix a -Wunused-function warning
  zswap: do not map same object twice
  zswap: use movable memory if zpool support allocate movable memory
  zpool: add malloc_support_movable to zpool_driver
  shmem: fix obsolete comment in shmem_getpage_gfp()
  mm/madvise: reduce code duplication in error handling paths
  mm: mmap: increase sockets maximum memory size pgoff for 32bits
  mm/mmap.c: refine find_vma_prev() with rb_last()
  riscv: make mmap allocation top-down by default
  mips: use generic mmap top-down layout and brk randomization
  mips: replace arch specific way to determine 32bit task with generic version
  mips: adjust brk randomization offset to fit generic version
  mips: use STACK_TOP when computing mmap base address
  mips: properly account for stack randomization and stack guard gap
  arm: use generic mmap top-down layout and brk randomization
  arm: use STACK_TOP when computing mmap base address
  arm: properly account for stack randomization and stack guard gap
  arm64, mm: make randomization selected by generic topdown mmap layout
  arm64, mm: move generic mmap layout functions to mm
  arm64: consider stack randomization for mmap base only when necessary
  ...
2019-09-24 16:10:23 -07:00
Waiman Long
04f768a39d mm, slab: extend slab/shrink to shrink all memcg caches
Currently, a value of '1" is written to /sys/kernel/slab/<slab>/shrink
file to shrink the slab by flushing out all the per-cpu slabs and free
slabs in partial lists.  This can be useful to squeeze out a bit more
memory under extreme condition as well as making the active object counts
in /proc/slabinfo more accurate.

This usually applies only to the root caches, as the SLUB_MEMCG_SYSFS_ON
option is usually not enabled and "slub_memcg_sysfs=1" not set.  Even if
memcg sysfs is turned on, it is too cumbersome and impractical to manage
all those per-memcg sysfs files in a real production system.

So there is no practical way to shrink memcg caches.  Fix this by enabling
a proper write to the shrink sysfs file of the root cache to scan all the
available memcg caches and shrink them as well.  For a non-root memcg
cache (when SLUB_MEMCG_SYSFS_ON or slub_memcg_sysfs is on), only that
cache will be shrunk when written.

On a 2-socket 64-core 256-thread arm64 system with 64k page after
a parallel kernel build, the the amount of memory occupied by slabs
before shrinking slabs were:

 # grep task_struct /proc/slabinfo
 task_struct        53137  53192   4288   61    4 : tunables    0    0
 0 : slabdata    872    872      0
 # grep "^S[lRU]" /proc/meminfo
 Slab:            3936832 kB
 SReclaimable:     399104 kB
 SUnreclaim:      3537728 kB

After shrinking slabs (by echoing "1" to all shrink files):

 # grep "^S[lRU]" /proc/meminfo
 Slab:            1356288 kB
 SReclaimable:     263296 kB
 SUnreclaim:      1092992 kB
 # grep task_struct /proc/slabinfo
 task_struct         2764   6832   4288   61    4 : tunables    0    0
 0 : slabdata    112    112      0

Link: http://lkml.kernel.org/r/20190723151445.7385-1-longman@redhat.com
Signed-off-by: Waiman Long <longman@redhat.com>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-24 15:54:07 -07:00
Linus Torvalds
d0b3cfee33 - Core Frameworks
- Obtain scale type through sysfs
 
  - New Functionality
    - Provide Device Tree functionality; rave-sp-backlight
    - Calculate if scale type is (non-)linear; pwm_bl
 
  - Fix-ups
    - Simplify code; lm3630a_bl
    - Trivial rename/whitespace/typo fixes; lms283gf05
    - Remove superfluous NULL check; tosa_lcd
    - Fix power state initialisation; gpio_backlight
    - List supported file; MAINTAINERS
 
  - Bug Fixes
    - Kconfig - default to not building unless requested; {LED,BACKLIGHT}_CLASS_DEVICE
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Merge tag 'backlight-next-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "Core Frameworks
   - Obtain scale type through sysfs

  New Functionality:
   - Provide Device Tree functionality in rave-sp-backlight
   - Calculate if scale type is (non-)linear in pwm_bl

  Fix-ups:
   - Simplify code in lm3630a_bl
   - Trivial rename/whitespace/typo fixes in lms283gf05
   - Remove superfluous NULL check in tosa_lcd
   - Fix power state initialisation in gpio_backlight
   - List supported file in MAINTAINERS

  Bug Fixes:
   - Kconfig - default to not building unless requested in
     {LED,BACKLIGHT}_CLASS_DEVICE"

* tag 'backlight-next-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: pwm_bl: Set scale type for brightness curves specified in the DT
  backlight: pwm_bl: Set scale type for CIE 1931 curves
  backlight: Expose brightness curve type through sysfs
  MAINTAINERS: Add entry for stable backlight sysfs ABI documentation
  backlight: gpio-backlight: Correct initial power state handling
  video: backlight: tosa_lcd: drop check because i2c_unregister_device() is NULL safe
  video: backlight: Drop default m for {LCD,BACKLIGHT_CLASS_DEVICE}
  backlight: lms283gf05: Fix a typo in the description passed to 'devm_gpio_request_one()'
  backlight: lm3630a: Switch to use fwnode_property_count_uXX()
  backlight: rave-sp: Leave initial state and register with correct device
2019-09-23 19:33:56 -07:00
Linus Torvalds
28de978ba3 remoteproc updates for v5.4
This exposes the remoteproc's name in sysfs, allows stm32 to enter
 platform standby and provides bug fixes for stm32 and Qualcomm's modem
 remoteproc drivers. Finally it updates MAINTAINERS to reflect the move
 to kernel.org.
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Merge tag 'rproc-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This exposes the remoteproc's name in sysfs, allows stm32 to enter
  platform standby and provides bug fixes for stm32 and Qualcomm's modem
  remoteproc drivers. Finally it updates MAINTAINERS to reflect the move
  to kernel.org"

* tag 'rproc-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
  MAINTAINERS: remoteproc: update git tree location
  remoteproc: Remove dev_err() usage after platform_get_irq()
  remoteproc: stm32: manage the get_irq probe defer case
  remoteproc: stm32: clear MCU PDDS at firmware start
  remoteproc: qcom: q6v5-mss: fixup q6v5_pds_enable error handling
  remoteproc: Add a sysfs interface for name
  remoteproc: qcom: Move glink_ssr notification after stop
2019-09-22 10:55:08 -07:00
Linus Torvalds
fbc246a12a f2fs-for-5.4-rc1
In this round, we introduced casefolding support in f2fs, and fixed various bugs
 in individual features such as IO alignment, checkpoint=disable, quota, and
 swapfile.
 
 Enhancement:
  - support casefolding w/ enhancement in ext4
  - support fiemap for directory
  - support FS_IO_GET|SET_FSLABEL
 
 Bug fix:
  - fix IO stuck during checkpoint=disable
  - avoid infinite GC loop
  - fix panic/overflow related to IO alignment feature
  - fix livelock in swap file
  - fix discard command leak
  - disallow dio for atomic_write
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Merge tag 'f2fs-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we introduced casefolding support in f2fs, and fixed
  various bugs in individual features such as IO alignment,
  checkpoint=disable, quota, and swapfile.

  Enhancement:
   - support casefolding w/ enhancement in ext4
   - support fiemap for directory
   - support FS_IO_GET|SET_FSLABEL

  Bug fix:
   - fix IO stuck during checkpoint=disable
   - avoid infinite GC loop
   - fix panic/overflow related to IO alignment feature
   - fix livelock in swap file
   - fix discard command leak
   - disallow dio for atomic_write"

* tag 'f2fs-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (51 commits)
  f2fs: add a condition to detect overflow in f2fs_ioc_gc_range()
  f2fs: fix to add missing F2FS_IO_ALIGNED() condition
  f2fs: fix to fallback to buffered IO in IO aligned mode
  f2fs: fix to handle error path correctly in f2fs_map_blocks
  f2fs: fix extent corrupotion during directIO in LFS mode
  f2fs: check all the data segments against all node ones
  f2fs: Add a small clarification to CONFIG_FS_F2FS_FS_SECURITY
  f2fs: fix inode rwsem regression
  f2fs: fix to avoid accessing uninitialized field of inode page in is_alive()
  f2fs: avoid infinite GC loop due to stale atomic files
  f2fs: Fix indefinite loop in f2fs_gc()
  f2fs: convert inline_data in prior to i_size_write
  f2fs: fix error path of f2fs_convert_inline_page()
  f2fs: add missing documents of reserve_root/resuid/resgid
  f2fs: fix flushing node pages when checkpoint is disabled
  f2fs: enhance f2fs_is_checkpoint_ready()'s readability
  f2fs: clean up __bio_alloc()'s parameter
  f2fs: fix wrong error injection path in inc_valid_block_count()
  f2fs: fix to writeout dirty inode during node flush
  f2fs: optimize case-insensitive lookups
  ...
2019-09-21 14:26:33 -07:00
Linus Torvalds
56c1e83434 Printk changes for 5.4
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Merge tag 'printk-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk

Pull printk updates from Petr Mladek:

 - Fix off-by-one error when calculating messages that might fit into
   kmsg buffer. It causes occasional omitting of the last message.

 - Add missing pointer check in %pD format modifier handling.

 - Some clean up

* tag 'printk-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
  ABI: Update dev-kmsg documentation to match current kernel behaviour
  printk: Replace strncmp() with str_has_prefix()
  lib/test_printf: Remove obvious comments from %pd and %pD tests
  lib/test_printf: Add test of null/invalid pointer dereference for dentry
  vsprintf: Prevent crash when dereferencing invalid pointers for %pD
  printk: Do not lose last line in kmsg buffer dump
2019-09-21 09:34:29 -07:00
Linus Torvalds
45824fc0da powerpc updates for 5.4
- Initial support for running on a system with an Ultravisor, which is software
    that runs below the hypervisor and protects guests against some attacks by
    the hypervisor.
 
  - Support for building the kernel to run as a "Secure Virtual Machine", ie. as
    a guest capable of running on a system with an Ultravisor.
 
  - Some changes to our DMA code on bare metal, to allow devices with medium
    sized DMA masks (> 32 && < 59 bits) to use more than 2GB of DMA space.
 
  - Support for firmware assisted crash dumps on bare metal (powernv).
 
  - Two series fixing bugs in and refactoring our PCI EEH code.
 
  - A large series refactoring our exception entry code to use gas macros, both
    to make it more readable and also enable some future optimisations.
 
 As well as many cleanups and other minor features & fixups.
 
 Thanks to:
   Adam Zerella, Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Aneesh
   Kumar K.V, Anju T Sudhakar, Anshuman Khandual, Balbir Singh, Benjamin
   Herrenschmidt, Cédric Le Goater, Christophe JAILLET, Christophe Leroy,
   Christopher M. Riedl, Christoph Hellwig, Claudio Carvalho, Daniel Axtens,
   David Gibson, David Hildenbrand, Desnes A. Nunes do Rosario, Ganesh Goudar,
   Gautham R. Shenoy, Greg Kurz, Guerney Hunt, Gustavo Romero, Halil Pasic, Hari
   Bathini, Joakim Tjernlund, Jonathan Neuschafer, Jordan Niethe, Leonardo Bras,
   Lianbo Jiang, Madhavan Srinivasan, Mahesh Salgaonkar, Mahesh Salgaonkar,
   Masahiro Yamada, Maxiwell S. Garcia, Michael Anderson, Nathan Chancellor,
   Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Qian Cai, Ram
   Pai, Ravi Bangoria, Reza Arbab, Ryan Grimm, Sam Bobroff, Santosh Sivaraj,
   Segher Boessenkool, Sukadev Bhattiprolu, Thiago Bauermann, Thiago Jung
   Bauermann, Thomas Gleixner, Tom Lendacky, Vasant Hegde.
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Merge tag 'powerpc-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "This is a bit late, partly due to me travelling, and partly due to a
  power outage knocking out some of my test systems *while* I was
  travelling.

   - Initial support for running on a system with an Ultravisor, which
     is software that runs below the hypervisor and protects guests
     against some attacks by the hypervisor.

   - Support for building the kernel to run as a "Secure Virtual
     Machine", ie. as a guest capable of running on a system with an
     Ultravisor.

   - Some changes to our DMA code on bare metal, to allow devices with
     medium sized DMA masks (> 32 && < 59 bits) to use more than 2GB of
     DMA space.

   - Support for firmware assisted crash dumps on bare metal (powernv).

   - Two series fixing bugs in and refactoring our PCI EEH code.

   - A large series refactoring our exception entry code to use gas
     macros, both to make it more readable and also enable some future
     optimisations.

  As well as many cleanups and other minor features & fixups.

  Thanks to: Adam Zerella, Alexey Kardashevskiy, Alistair Popple, Andrew
  Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Anshuman Khandual,
  Balbir Singh, Benjamin Herrenschmidt, Cédric Le Goater, Christophe
  JAILLET, Christophe Leroy, Christopher M. Riedl, Christoph Hellwig,
  Claudio Carvalho, Daniel Axtens, David Gibson, David Hildenbrand,
  Desnes A. Nunes do Rosario, Ganesh Goudar, Gautham R. Shenoy, Greg
  Kurz, Guerney Hunt, Gustavo Romero, Halil Pasic, Hari Bathini, Joakim
  Tjernlund, Jonathan Neuschafer, Jordan Niethe, Leonardo Bras, Lianbo
  Jiang, Madhavan Srinivasan, Mahesh Salgaonkar, Mahesh Salgaonkar,
  Masahiro Yamada, Maxiwell S. Garcia, Michael Anderson, Nathan
  Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Oliver
  O'Halloran, Qian Cai, Ram Pai, Ravi Bangoria, Reza Arbab, Ryan Grimm,
  Sam Bobroff, Santosh Sivaraj, Segher Boessenkool, Sukadev Bhattiprolu,
  Thiago Bauermann, Thiago Jung Bauermann, Thomas Gleixner, Tom
  Lendacky, Vasant Hegde"

* tag 'powerpc-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (264 commits)
  powerpc/mm/mce: Keep irqs disabled during lockless page table walk
  powerpc: Use ftrace_graph_ret_addr() when unwinding
  powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
  ftrace: Look up the address of return_to_handler() using helpers
  powerpc: dump kernel log before carrying out fadump or kdump
  docs: powerpc: Add missing documentation reference
  powerpc/xmon: Fix output of XIVE IPI
  powerpc/xmon: Improve output of XIVE interrupts
  powerpc/mm/radix: remove useless kernel messages
  powerpc/fadump: support holes in kernel boot memory area
  powerpc/fadump: remove RMA_START and RMA_END macros
  powerpc/fadump: update documentation about option to release opalcore
  powerpc/fadump: consider f/w load area
  powerpc/opalcore: provide an option to invalidate /sys/firmware/opal/core file
  powerpc/opalcore: export /sys/firmware/opal/core for analysing opal crashes
  powerpc/fadump: update documentation about CONFIG_PRESERVE_FA_DUMP
  powerpc/fadump: add support to preserve crash data on FADUMP disabled kernel
  powerpc/fadump: improve how crashed kernel's memory is reserved
  powerpc/fadump: consider reserved ranges while releasing memory
  powerpc/fadump: make crash memory ranges array allocation generic
  ...
2019-09-20 11:48:06 -07:00
Linus Torvalds
81160dda9a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:

 1) Support IPV6 RA Captive Portal Identifier, from Maciej Żenczykowski.

 2) Use bio_vec in the networking instead of custom skb_frag_t, from
    Matthew Wilcox.

 3) Make use of xmit_more in r8169 driver, from Heiner Kallweit.

 4) Add devmap_hash to xdp, from Toke Høiland-Jørgensen.

 5) Support all variants of 5750X bnxt_en chips, from Michael Chan.

 6) More RTNL avoidance work in the core and mlx5 driver, from Vlad
    Buslov.

 7) Add TCP syn cookies bpf helper, from Petar Penkov.

 8) Add 'nettest' to selftests and use it, from David Ahern.

 9) Add extack support to drop_monitor, add packet alert mode and
    support for HW drops, from Ido Schimmel.

10) Add VLAN offload to stmmac, from Jose Abreu.

11) Lots of devm_platform_ioremap_resource() conversions, from
    YueHaibing.

12) Add IONIC driver, from Shannon Nelson.

13) Several kTLS cleanups, from Jakub Kicinski.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1930 commits)
  mlxsw: spectrum_buffers: Add the ability to query the CPU port's shared buffer
  mlxsw: spectrum: Register CPU port with devlink
  mlxsw: spectrum_buffers: Prevent changing CPU port's configuration
  net: ena: fix incorrect update of intr_delay_resolution
  net: ena: fix retrieval of nonadaptive interrupt moderation intervals
  net: ena: fix update of interrupt moderation register
  net: ena: remove all old adaptive rx interrupt moderation code from ena_com
  net: ena: remove ena_restore_ethtool_params() and relevant fields
  net: ena: remove old adaptive interrupt moderation code from ena_netdev
  net: ena: remove code duplication in ena_com_update_nonadaptive_moderation_interval _*()
  net: ena: enable the interrupt_moderation in driver_supported_features
  net: ena: reimplement set/get_coalesce()
  net: ena: switch to dim algorithm for rx adaptive interrupt moderation
  net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
  net: phy: adin: implement Energy Detect Powerdown mode via phy-tunable
  ethtool: implement Energy Detect Powerdown support via phy-tunable
  xen-netfront: do not assume sk_buff_head list is empty in error handling
  s390/ctcm: Delete unnecessary checks before the macro call “dev_kfree_skb”
  net: ena: don't wake up tx queue when down
  drop_monitor: Better sanitize notified packets
  ...
2019-09-18 12:34:53 -07:00
Linus Torvalds
8b53c76533 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Add the ability to abort a skcipher walk.

  Algorithms:
   - Fix XTS to actually do the stealing.
   - Add library helpers for AES and DES for single-block users.
   - Add library helpers for SHA256.
   - Add new DES key verification helper.
   - Add surrounding bits for ESSIV generator.
   - Add accelerations for aegis128.
   - Add test vectors for lzo-rle.

  Drivers:
   - Add i.MX8MQ support to caam.
   - Add gcm/ccm/cfb/ofb aes support in inside-secure.
   - Add ofb/cfb aes support in media-tek.
   - Add HiSilicon ZIP accelerator support.

  Others:
   - Fix potential race condition in padata.
   - Use unbound workqueues in padata"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (311 commits)
  crypto: caam - Cast to long first before pointer conversion
  crypto: ccree - enable CTS support in AES-XTS
  crypto: inside-secure - Probe transform record cache RAM sizes
  crypto: inside-secure - Base RD fetchcount on actual RD FIFO size
  crypto: inside-secure - Base CD fetchcount on actual CD FIFO size
  crypto: inside-secure - Enable extended algorithms on newer HW
  crypto: inside-secure: Corrected configuration of EIP96_TOKEN_CTRL
  crypto: inside-secure - Add EIP97/EIP197 and endianness detection
  padata: remove cpu_index from the parallel_queue
  padata: unbind parallel jobs from specific CPUs
  padata: use separate workqueues for parallel and serial work
  padata, pcrypt: take CPU hotplug lock internally in padata_alloc_possible
  crypto: pcrypt - remove padata cpumask notifier
  padata: make padata_do_parallel find alternate callback CPU
  workqueue: require CPU hotplug read exclusion for apply_workqueue_attrs
  workqueue: unconfine alloc/apply/free_workqueue_attrs()
  padata: allocate workqueue internally
  arm64: dts: imx8mq: Add CAAM node
  random: Use wait_event_freezable() in add_hwgenerator_randomness()
  crypto: ux500 - Fix COMPILE_TEST warnings
  ...
2019-09-18 12:11:14 -07:00
Linus Torvalds
6cfae0c26b Char/Misc driver patches for 5.4-rc1
Here is the big char/misc driver pull request for 5.4-rc1.
 
 As has been happening in previous releases, more and more individual
 driver subsystem trees are ending up in here.  Now if that is good or
 bad I can't tell, but hopefully it makes your life easier as it's more
 of an aggregation of trees together to one merge point for you.
 
 Anyway, lots of stuff in here:
 	- habanalabs driver updates
 	- thunderbolt driver updates
 	- misc driver updates
 	- coresight and intel_th hwtracing driver updates
 	- fpga driver updates
 	- extcon driver updates
 	- some dma driver updates
 	- char driver updates
 	- android binder driver updates
 	- nvmem driver updates
 	- phy driver updates
 	- parport driver fixes
 	- pcmcia driver fix
 	- uio driver updates
 	- w1 driver updates
 	- configfs fixes
 	- other assorted driver updates
 
 All of these have been in linux-next for a long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver pull request for 5.4-rc1.

  As has been happening in previous releases, more and more individual
  driver subsystem trees are ending up in here. Now if that is good or
  bad I can't tell, but hopefully it makes your life easier as it's more
  of an aggregation of trees together to one merge point for you.

  Anyway, lots of stuff in here:
     - habanalabs driver updates
     - thunderbolt driver updates
     - misc driver updates
     - coresight and intel_th hwtracing driver updates
     - fpga driver updates
     - extcon driver updates
     - some dma driver updates
     - char driver updates
     - android binder driver updates
     - nvmem driver updates
     - phy driver updates
     - parport driver fixes
     - pcmcia driver fix
     - uio driver updates
     - w1 driver updates
     - configfs fixes
     - other assorted driver updates

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits)
  misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation
  habanalabs: correctly cast variable to __le32
  habanalabs: show correct id in error print
  habanalabs: stop using the acronym KMD
  habanalabs: display card name as sensors header
  habanalabs: add uapi to retrieve aggregate H/W events
  habanalabs: add uapi to retrieve device utilization
  habanalabs: Make the Coresight timestamp perpetual
  habanalabs: explicitly set the queue-id enumerated numbers
  habanalabs: print to kernel log when reset is finished
  habanalabs: replace __le32_to_cpu with le32_to_cpu
  habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64
  habanalabs: Handle HW_IP_INFO if device disabled or in reset
  habanalabs: Expose devices after initialization is done
  habanalabs: improve security in Debug IOCTL
  habanalabs: use default structure for user input in Debug IOCTL
  habanalabs: Add descriptive name to PSOC app status register
  habanalabs: Add descriptive names to PSOC scratch-pad registers
  habanalabs: create two char devices per ASIC
  habanalabs: change device_setup_cdev() to be more generic
  ...
2019-09-18 11:14:31 -07:00
Linus Torvalds
e6874fc294 Staging/IIO driver patches for 5.4-rc1
Here is the big staging/iio driver update for 5.4-rc1.
 
 Lots of churn here, with a few driver/filesystems moving out of staging
 finally:
 	- erofs moved out of staging
 	- greybus core code moved out of staging
 
 Along with that, a new filesytem has been added:
 	- extfat
 to provide support for those devices requiring that filesystem (i.e.
 transfer devices to/from windows systems or printers.)
 
 Other than that, there a number of new IIO drivers, and lots and lots
 and lots of staging driver cleanups and minor fixes as people continue
 to dig into those for easy changes.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver updates from Greg KH:
 "Here is the big staging/iio driver update for 5.4-rc1.

  Lots of churn here, with a few driver/filesystems moving out of
  staging finally:

     - erofs moved out of staging

     - greybus core code moved out of staging

  Along with that, a new filesytem has been added:

     - extfat

  to provide support for those devices requiring that filesystem (i.e.
  transfer devices to/from windows systems or printers)

  Other than that, there a number of new IIO drivers, and lots and lots
  and lots of staging driver cleanups and minor fixes as people continue
  to dig into those for easy changes.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (453 commits)
  Staging: gasket: Use temporaries to reduce line length.
  Staging: octeon: Avoid several usecases of strcpy
  staging: vhciq_core: replace snprintf with scnprintf
  staging: wilc1000: avoid twice IRQ handler execution for each single interrupt
  staging: wilc1000: remove unused interrupt status handling code
  staging: fbtft: make several arrays static const, makes object smaller
  staging: rtl8188eu: make two arrays static const, makes object smaller
  staging: rtl8723bs: core: Remove Macro "IS_MAC_ADDRESS_BROADCAST"
  dt-bindings: anybus-controller: move to staging/ tree
  staging: emxx_udc: remove local TRUE/FALSE definition
  staging: wilc1000: look for rtc_clk clock
  staging: dt-bindings: wilc1000: add optional rtc_clk property
  staging: nvec: make use of devm_platform_ioremap_resource
  staging: exfat: drop unused function parameter
  Staging: exfat: Avoid use of strcpy
  staging: exfat: use integer constants
  staging: exfat: cleanup spacing for casts
  staging: exfat: cleanup spacing for operators
  staging: rtl8723bs: hal: remove redundant variable n
  staging: pi433: Fix typo in documentation
  ...
2019-09-18 11:05:34 -07:00
Linus Torvalds
77dcfe2b9e Power management updates for 5.4-rc1
- Rework the main suspend-to-idle control flow to avoid repeating
    "noirq" device resume and suspend operations in case of spurious
    wakeups from the ACPI EC and decouple the ACPI EC wakeups support
    from the LPS0 _DSM support (Rafael Wysocki).
 
  - Extend the wakeup sources framework to expose wakeup sources as
    device objects in sysfs (Tri Vo, Stephen Boyd).
 
  - Expose system suspend statistics in sysfs (Kalesh Singh).
 
  - Introduce a new haltpoll cpuidle driver and a new matching
    governor for virtualized guests wanting to do guest-side polling
    in the idle loop (Marcelo Tosatti, Joao Martins, Wanpeng Li,
    Stephen Rothwell).
 
  - Fix the menu and teo cpuidle governors to allow the scheduler tick
    to be stopped if PM QoS is used to limit the CPU idle state exit
    latency in some cases (Rafael Wysocki).
 
  - Increase the resolution of the play_idle() argument to microseconds
    for more fine-grained injection of CPU idle cycles (Daniel Lezcano).
 
  - Switch over some users of cpuidle notifiers to the new QoS-based
    frequency limits and drop the CPUFREQ_ADJUST and CPUFREQ_NOTIFY
    policy notifier events (Viresh Kumar).
 
  - Add new cpufreq driver based on nvmem for sun50i (Yangtao Li).
 
  - Add support for MT8183 and MT8516 to the mediatek cpufreq driver
    (Andrew-sh.Cheng, Fabien Parent).
 
  - Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson
    Huang).
 
  - Add qcs404 to cpufreq-dt-platdev blacklist (Jorge Ramirez-Ortiz).
 
  - Update the qcom cpufreq driver (among other things, to make it
    easier to extend and to use kryo cpufreq for other nvmem-based
    SoCs) and add qcs404 support to it  (Niklas Cassel, Douglas
    RAILLARD, Sibi Sankar, Sricharan R).
 
  - Fix assorted issues and make assorted minor improvements in the
    cpufreq code (Colin Ian King, Douglas RAILLARD, Florian Fainelli,
    Gustavo Silva, Hariprasad Kelam).
 
  - Add new devfreq driver for NVidia Tegra20 (Dmitry Osipenko, Arnd
    Bergmann).
 
  - Add new Exynos PPMU events to devfreq events and extend that
    mechanism (Lukasz Luba).
 
  - Fix and clean up the exynos-bus devfreq driver (Kamil Konieczny).
 
  - Improve devfreq documentation and governor code, fix spelling
    typos in devfreq (Ezequiel Garcia, Krzysztof Kozlowski, Leonard
    Crestez, MyungJoo Ham, Gaël PORTAY).
 
  - Add regulators enable and disable to the OPP (operating performance
    points) framework (Kamil Konieczny).
 
  - Update the OPP framework to support multiple opp-suspend properties
    (Anson Huang).
 
  - Fix assorted issues and make assorted minor improvements in the OPP
    code (Niklas Cassel, Viresh Kumar, Yue Hu).
 
  - Clean up the generic power domains (genpd) framework (Ulf Hansson).
 
  - Clean up assorted pieces of power management code and documentation
    (Akinobu Mita, Amit Kucheria, Chuhong Yuan).
 
  - Update the pm-graph tool to version 5.5 including multiple fixes
    and improvements (Todd Brandt).
 
  - Update the cpupower utility (Benjamin Weis, Geert Uytterhoeven,
    Sébastien Szymanski).
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Merge tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These include a rework of the main suspend-to-idle code flow (related
  to the handling of spurious wakeups), a switch over of several users
  of cpufreq notifiers to QoS-based limits, a new devfreq driver for
  Tegra20, a new cpuidle driver and governor for virtualized guests, an
  extension of the wakeup sources framework to expose wakeup sources as
  device objects in sysfs, and more.

  Specifics:

   - Rework the main suspend-to-idle control flow to avoid repeating
     "noirq" device resume and suspend operations in case of spurious
     wakeups from the ACPI EC and decouple the ACPI EC wakeups support
     from the LPS0 _DSM support (Rafael Wysocki).

   - Extend the wakeup sources framework to expose wakeup sources as
     device objects in sysfs (Tri Vo, Stephen Boyd).

   - Expose system suspend statistics in sysfs (Kalesh Singh).

   - Introduce a new haltpoll cpuidle driver and a new matching governor
     for virtualized guests wanting to do guest-side polling in the idle
     loop (Marcelo Tosatti, Joao Martins, Wanpeng Li, Stephen Rothwell).

   - Fix the menu and teo cpuidle governors to allow the scheduler tick
     to be stopped if PM QoS is used to limit the CPU idle state exit
     latency in some cases (Rafael Wysocki).

   - Increase the resolution of the play_idle() argument to microseconds
     for more fine-grained injection of CPU idle cycles (Daniel
     Lezcano).

   - Switch over some users of cpuidle notifiers to the new QoS-based
     frequency limits and drop the CPUFREQ_ADJUST and CPUFREQ_NOTIFY
     policy notifier events (Viresh Kumar).

   - Add new cpufreq driver based on nvmem for sun50i (Yangtao Li).

   - Add support for MT8183 and MT8516 to the mediatek cpufreq driver
     (Andrew-sh.Cheng, Fabien Parent).

   - Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson
     Huang).

   - Add qcs404 to cpufreq-dt-platdev blacklist (Jorge Ramirez-Ortiz).

   - Update the qcom cpufreq driver (among other things, to make it
     easier to extend and to use kryo cpufreq for other nvmem-based
     SoCs) and add qcs404 support to it (Niklas Cassel, Douglas
     RAILLARD, Sibi Sankar, Sricharan R).

   - Fix assorted issues and make assorted minor improvements in the
     cpufreq code (Colin Ian King, Douglas RAILLARD, Florian Fainelli,
     Gustavo Silva, Hariprasad Kelam).

   - Add new devfreq driver for NVidia Tegra20 (Dmitry Osipenko, Arnd
     Bergmann).

   - Add new Exynos PPMU events to devfreq events and extend that
     mechanism (Lukasz Luba).

   - Fix and clean up the exynos-bus devfreq driver (Kamil Konieczny).

   - Improve devfreq documentation and governor code, fix spelling typos
     in devfreq (Ezequiel Garcia, Krzysztof Kozlowski, Leonard Crestez,
     MyungJoo Ham, Gaël PORTAY).

   - Add regulators enable and disable to the OPP (operating performance
     points) framework (Kamil Konieczny).

   - Update the OPP framework to support multiple opp-suspend properties
     (Anson Huang).

   - Fix assorted issues and make assorted minor improvements in the OPP
     code (Niklas Cassel, Viresh Kumar, Yue Hu).

   - Clean up the generic power domains (genpd) framework (Ulf Hansson).

   - Clean up assorted pieces of power management code and documentation
     (Akinobu Mita, Amit Kucheria, Chuhong Yuan).

   - Update the pm-graph tool to version 5.5 including multiple fixes
     and improvements (Todd Brandt).

   - Update the cpupower utility (Benjamin Weis, Geert Uytterhoeven,
     Sébastien Szymanski)"

* tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (126 commits)
  cpuidle-haltpoll: Enable kvm guest polling when dedicated physical CPUs are available
  cpuidle-haltpoll: do not set an owner to allow modunload
  cpuidle-haltpoll: return -ENODEV on modinit failure
  cpuidle-haltpoll: set haltpoll as preferred governor
  cpuidle: allow governor switch on cpuidle_register_driver()
  PM: runtime: Documentation: add runtime_status ABI document
  pm-graph: make setVal unbuffered again for python2 and python3
  powercap: idle_inject: Use higher resolution for idle injection
  cpuidle: play_idle: Increase the resolution to usec
  cpuidle-haltpoll: vcpu hotplug support
  cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist
  cpufreq: qcom: Add support for qcs404 on nvmem driver
  cpufreq: qcom: Refactor the driver to make it easier to extend
  cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs
  dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR
  dt-bindings: opp: qcom-nvmem: Support pstates provided by a power domain
  Documentation: cpufreq: Update policy notifier documentation
  cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events
  PM / Domains: Verify PM domain type in dev_pm_genpd_set_performance_state()
  PM / Domains: Simplify genpd_lookup_dev()
  ...
2019-09-17 19:15:14 -07:00
Linus Torvalds
7c672abc12 It's a somewhat calmer cycle for docs this time, as the churn of the mass
RST conversion is happily mostly behind us.
 
  - A new document on reproducible builds.
 
  - We finally got around to zapping the documentation for hardware support
    that was removed in 2004; one doesn't want to rush these things.
 
  - The usual assortment of fixes, typo corrections, etc.
 
 You'll still find a handful of annoying conflicts against other trees,
 mostly tied to the last RST conversions; resolutions are straightforward
 and the linux-next ones are good.
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Merge tag 'docs-5.4' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "It's a somewhat calmer cycle for docs this time, as the churn of the
  mass RST conversion is happily mostly behind us.

   - A new document on reproducible builds.

   - We finally got around to zapping the documentation for hardware
     support that was removed in 2004; one doesn't want to rush these
     things.

   - The usual assortment of fixes, typo corrections, etc"

* tag 'docs-5.4' of git://git.lwn.net/linux: (67 commits)
  Documentation: kbuild: Add document about reproducible builds
  docs: printk-formats: Stop encouraging use of unnecessary %h[xudi] and %hh[xudi]
  Documentation: Add "earlycon=sbi" to the admin guide
  doc🔒 remove reference to clever use of read-write lock
  devices.txt: improve entry for comedi (char major 98)
  docs: mtd: Update spi nor reference driver
  doc: arm64: fix grammar dtb placed in no attributes region
  Documentation: sysrq: don't recommend 'S' 'U' before 'B'
  mailmap: Update email address for Quentin Perret
  docs: ftrace: clarify when tracing is disabled by the trace file
  docs: process: fix broken link
  Documentation/arm/samsung-s3c24xx: Remove stray U+FEFF character to fix title
  Documentation/arm/sa1100/assabet: Fix 'make assabet_defconfig' command
  Documentation/arm/sa1100: Remove some obsolete documentation
  docs/zh_CN: update Chinese howto.rst for latexdocs making
  Documentation: virt: Fix broken reference to virt tree's index
  docs: Fix typo on pull requests guide
  kernel-doc: Allow anonymous enum
  Documentation: sphinx: Don't parse socket() as identifier reference
  Documentation: sphinx: Add missing comma to list of strings
  ...
2019-09-17 16:22:26 -07:00
Rafael J. Wysocki
d281706369 Merge branch 'pm-sleep'
* pm-sleep: (29 commits)
  ACPI: PM: s2idle: Always set up EC GPE for system wakeup
  ACPI: PM: s2idle: Avoid rearming SCI for wakeup unnecessarily
  PM / wakeup: Unexport wakeup_source_sysfs_{add,remove}()
  PM / wakeup: Register wakeup class kobj after device is added
  PM / wakeup: Fix sysfs registration error path
  PM / wakeup: Show wakeup sources stats in sysfs
  PM / wakeup: Use wakeup_source_register() in wakelock.c
  PM / wakeup: Drop wakeup_source_init(), wakeup_source_prepare()
  PM: sleep: Replace strncmp() with str_has_prefix()
  PM: suspend: Fix platform_suspend_prepare_noirq()
  intel-hid: Disable button array during suspend-to-idle
  intel-hid: intel-vbtn: Avoid leaking wakeup_mode set
  ACPI: PM: s2idle: Execute LPS0 _DSM functions with suspended devices
  ACPI: EC: PM: Make acpi_ec_dispatch_gpe() print debug message
  ACPI: EC: PM: Consolidate some code depending on PM_SLEEP
  ACPI: PM: s2idle: Eliminate acpi_sleep_no_ec_events()
  ACPI: PM: s2idle: Switch EC over to polling during "noirq" suspend
  ACPI: PM: s2idle: Add acpi.sleep_no_lps0 module parameter
  ACPI: PM: s2idle: Rearrange lps0_device_attach()
  PM/sleep: Expose suspend stats in sysfs
  ...
2019-09-17 09:36:34 +02:00
Ivan Mikhaylov
ebdc0f5817 watchdog: apseed: Add access_cs0 option for alt-boot
The option for the ast2400/2500 to get access to CS0 at runtime.

Signed-off-by: Ivan Mikhaylov <i.mikhaylov@yadro.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20190828102402.13155-5-i.mikhaylov@yadro.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-09-17 08:59:13 +02:00
Linus Torvalds
cc9b499a1f Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:

 - refactor the EFI config table handling across architectures

 - add support for the Dell EMC OEM config table

 - include AER diagnostic output to CPER handling of fatal PCIe errors

* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: cper: print AER info of PCIe fatal error
  efi: Export Runtime Configuration Interface table to sysfs
  efi: ia64: move SAL systab handling out of generic EFI code
  efi/x86: move UV_SYSTAB handling into arch/x86
  efi: x86: move efi_is_table_address() into arch/x86
2019-09-16 16:47:38 -07:00
Arnd Bergmann
3dc8dcb02f Qualcomm ARM Based Driver Updates for v5.4
* Add AOSS QMP support
 * Various fixups for Qualcomm SCM
 * Add socinfo driver
 * Add SoC serial number attribute and associated APIs
 * Add SM8150 and SC7180 support in Qualcomm SCM
 * Fixup max processor count in SMEM
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Merge tag 'qcom-drivers-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers

Qualcomm ARM Based Driver Updates for v5.4

* Add AOSS QMP support
* Various fixups for Qualcomm SCM
* Add socinfo driver
* Add SoC serial number attribute and associated APIs
* Add SM8150 and SC7180 support in Qualcomm SCM
* Fixup max processor count in SMEM

* tag 'qcom-drivers-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  soc: qcom: aoss: Add AOSS QMP support
  dt-bindings: soc: qcom: aoss: Add SM8150 and SC7180 support
  dt-bindings: firmware: scm: Add SM8150 and SC7180 support
  dt-bindings: firmware: scm: re-order compatible list
  soc: qcom: smem: Update max processor count
  soc: qcom: socinfo: Annotate switch cases with fall through
  soc: qcom: Extend AOSS QMP driver to support resources that are used to wake up the SoC.
  soc: qcom: socinfo: Expose image information
  soc: qcom: socinfo: Expose custom attributes
  soc: qcom: Add socinfo driver
  base: soc: Export soc_device_register/unregister APIs
  base: soc: Add serial_number attribute to soc
  firmware: qcom_scm: Cleanup code in qcom_scm_assign_mem()
  firmware: qcom_scm: Fix some typos in docs and printks
  firmware: qcom_scm: Use proper types for dma mappings
2019-09-12 13:46:20 +02:00
Mircea Caprioru
42776c14c6 staging: iio: adc: ad7192: Add system calibration support
This patch will add a system calibration attribute for each channel. Using
this option the user will have the ability to calibrate each channel for
zero scale and full scale. It uses the iio_chan_spec_ext_info and IIO_ENUM
to implement the functionality.

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-09-08 10:35:56 +01:00
Mircea Caprioru
b73b93a2af iio: adc: ad7192: Add sysfs ABI documentation
Add initial ABI documentation for ad7192 adc sysfs interfaces.

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-09-08 10:34:49 +01:00
James Byrne
085a3a8fdf ABI: Update dev-kmsg documentation to match current kernel behaviour
Commit 5aa068ea40 ("printk: remove games with previous record flags")
abolished the practice of setting the log flag to 'c' for the first
continuation line and '+' for subsequent lines. Now all continuation
lines are flagged with 'c' and '+' is never used.

Update the 'dev-kmsg' documentation to remove the reference to the
obsolete '+' flag. In addition, state explicitly that only 8 bits of the
<N> syslog prefix are used for the facility number when writing to
/dev/kmsg.

Link: http://lkml.kernel.org/r/0102016cf1b26630-8e9b337b-da49-43c6-b028-4250c2fac3ef-000000@eu-west-1.amazonses.com
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
2019-09-06 16:26:36 +02:00
Akinobu Mita
0760bb9ac9 PM: runtime: Documentation: add runtime_status ABI document
/sys/devices/.../power/runtime_status is introduced by commit c92445fadb
("PM / Runtime: Add sysfs debug files").  Then commit 0fcb4eef82 ("PM /
Runtime: Make runtime_status attribute not debug-only (v. 2)") made the
runtime_status attribute available without CONFIG_PM_ADVANCED_DEBUG.

This adds missing runtime_status ABI document.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-09-06 14:11:13 +02:00
Oded Gabbay
209257feab habanalabs: power management through sysfs is only for GOYA
The ability of setting power management properties by the system
administrator (through sysfs properties) is only relevant for the GOYA
ASIC. Therefore, move the relevant sysfs properties to the GOYA sysfs
specific file, to make the properties appear in sysfs only for GOYA cards.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
2019-09-05 14:55:26 +03:00
Oded Gabbay
68b8819daf habanalabs: remove write_open_cnt property
This property has attempted to show the number of open file descriptors on
the device. This was a stupid and futile attempt so remove this property
completely.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2019-09-05 14:55:25 +03:00
Marek Behún
7db93df1c8 firmware: turris-mox-rwtm: Add sysfs documentation
Add sysfs ABI documentation for the sysfs files created by the
turris-mox-rwtm driver.

Link: https://lore.kernel.org/r/20190822014318.19478-4-marek.behun@nic.cz
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04 17:32:28 +02:00
Richard Gong
feef87e911 firmware: rsu: document sysfs interface
Describe Intel Stratix10 Remote System Update (RSU) device attributes

Signed-off-by: Richard Gong <richard.gong@intel.com>
Reviewed-by: Alan Tull <atull@kernel.org>
Link: https://lore.kernel.org/r/1567516701-26026-4-git-send-email-richard.gong@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-04 13:31:28 +02:00
Wu Hao
cb3c2c47e3 fpga: dfl: fme: add global error reporting support
This patch adds support for global error reporting for FPGA
Management Engine (FME), it introduces sysfs interfaces to
report different error detected by the hardware, and allow
user to clear errors or inject error for testing purpose.

Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Ananda Ravuri <ananda.ravuri@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2019-09-03 19:35:41 -07:00
Wu Hao
44d247534f fpga: dfl: afu: add error reporting support.
Error reporting is one important private feature, it reports error
detected on port and accelerated function unit (AFU). It introduces
several sysfs interfaces to allow userspace to check and clear
errors detected by hardware.

Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2019-09-03 19:35:41 -07:00
Wu Hao
f09991adfb fpga: dfl: afu: add userclock sysfs interfaces.
This patch introduces userclock sysfs interfaces for AFU, user
could use these interfaces for clock setting to AFU.

Please note that, this is only working for port header feature
with revision 0, for later revisions, userclock setting is moved
to a separated private feature, so one revision sysfs interface
is exposed to userspace application for this purpose too.

Signed-off-by: Ananda Ravuri <ananda.ravuri@intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2019-09-03 19:35:41 -07:00
Matthias Kaehlcke
d55c028f8b backlight: Expose brightness curve type through sysfs
Backlight brightness curves can have different shapes. The two main
types are linear and non-linear curves. The human eye doesn't
perceive linearly increasing/decreasing brightness as linear (see
also 88ba95bedb "backlight: pwm_bl: Compute brightness of LED
linearly to human eye"), hence many backlights use non-linear (often
logarithmic) brightness curves. The type of curve currently is opaque
to userspace, so userspace often uses more or less reliable heuristics
(like the number of brightness levels) to decide whether to treat a
backlight device as linear or non-linear.

Export the type of the brightness curve via the new sysfs attribute
'scale'. The value of the attribute can be 'linear', 'non-linear' or
'unknown'. For devices that don't provide information about the scale
of their brightness curve the value of the 'scale' attribute is 'unknown'.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02 15:55:03 +01:00
Ryan Grimm
734560ac39 powerpc/pseries/svm: Export guest SVM status to user space via sysfs
User space might want to know it's running in a secure VM.  It can't do
a mfmsr because mfmsr is a privileged instruction.

The solution here is to create a cpu attribute:

/sys/devices/system/cpu/svm

which will read 0 or 1 based on the S bit of the current CPU.

Signed-off-by: Ryan Grimm <grimm@linux.vnet.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190820021326.6884-12-bauerman@linux.ibm.com
2019-08-30 09:55:41 +10:00
Suman Anna
6ed756aa01 remoteproc: Add a sysfs interface for name
This patch adds a sysfs interface that provides the name of the
remote processor to userspace. This allows the userspace to identify
a remote processor as the remoteproc devices themselves are created
based on probe order and can change from one boot to another or
at runtime.

The name is made available in debugfs originally, and is being
retained for now. This can be cleaned up after couple of releases
once users get familiar with the new interface.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-26 14:50:16 -07:00
Daniel Rosenberg
5aba54302a f2fs: include charset encoding information in the superblock
Add charset encoding to f2fs to support casefolding. It is modeled after
the same feature introduced in commit c83ad55eaa ("ext4: include charset
encoding information in the superblock")

Currently this is not compatible with encryption, similar to the current
ext4 imlpementation. This will change in the future.

>From the ext4 patch:
"""
The s_encoding field stores a magic number indicating the encoding
format and version used globally by file and directory names in the
filesystem.  The s_encoding_flags defines policies for using the charset
encoding, like how to handle invalid sequences.  The magic number is
mapped to the exact charset table, but the mapping is specific to ext4.
Since we don't have any commitment to support old encodings, the only
encoding I am supporting right now is utf8-12.1.0.

The current implementation prevents the user from enabling encoding and
per-directory encryption on the same filesystem at the same time.  The
incompatibility between these features lies in how we do efficient
directory searches when we cannot be sure the encryption of the user
provided fname will match the actual hash stored in the disk without
decrypting every directory entry, because of normalization cases.  My
quickest solution is to simply block the concurrent use of these
features for now, and enable it later, once we have a better solution.
"""

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-08-23 07:57:13 -07:00
Tri Vo
c8377adfa7 PM / wakeup: Show wakeup sources stats in sysfs
Add an ID and a device pointer to 'struct wakeup_source'. Use them to to
expose wakeup sources statistics in sysfs under
/sys/class/wakeup/wakeup<ID>/*.

Co-developed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Tri Vo <trong@android.com>
Tested-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21 00:20:40 +02:00
Marek Behún
2091b417aa bus: moxtet: Add sysfs and debugfs documentation
Add sysfs ABI documentation for the attribute files module_id and
module_name

Add debugfs ABI documentation for reading input from the shift registers
and reading last written output or write output to the shift registers.

Link: https://lore.kernel.org/r/20190812161118.21476-4-marek.behun@nic.cz
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-14 15:30:49 +02:00
Andrii Nakryiko
7fd785685e btf: rename /sys/kernel/btf/kernel into /sys/kernel/btf/vmlinux
Expose kernel's BTF under the name vmlinux to be more uniform with using
kernel module names as file names in the future.

Fixes: 341dfcf8d7 ("btf: expose BTF info through sysfs")
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-08-13 23:19:42 +02:00
Andrii Nakryiko
341dfcf8d7 btf: expose BTF info through sysfs
Make .BTF section allocated and expose its contents through sysfs.

/sys/kernel/btf directory is created to contain all the BTFs present
inside kernel. Currently there is only kernel's main BTF, represented as
/sys/kernel/btf/kernel file. Once kernel modules' BTFs are supported,
each module will expose its BTF as /sys/kernel/btf/<module-name> file.

Current approach relies on a few pieces coming together:
1. pahole is used to take almost final vmlinux image (modulo .BTF and
   kallsyms) and generate .BTF section by converting DWARF info into
   BTF. This section is not allocated and not mapped to any segment,
   though, so is not yet accessible from inside kernel at runtime.
2. objcopy dumps .BTF contents into binary file and subsequently
   convert binary file into linkable object file with automatically
   generated symbols _binary__btf_kernel_bin_start and
   _binary__btf_kernel_bin_end, pointing to start and end, respectively,
   of BTF raw data.
3. final vmlinux image is generated by linking this object file (and
   kallsyms, if necessary). sysfs_btf.c then creates
   /sys/kernel/btf/kernel file and exposes embedded BTF contents through
   it. This allows, e.g., libbpf and bpftool access BTF info at
   well-known location, without resorting to searching for vmlinux image
   on disk (location of which is not standardized and vmlinux image
   might not be even available in some scenarios, e.g., inside qemu
   during testing).

Alternative approach using .incbin assembler directive to embed BTF
contents directly was attempted but didn't work, because sysfs_proc.o is
not re-compiled during link-vmlinux.sh stage. This is required, though,
to update embedded BTF data (initially empty data is embedded, then
pahole generates BTF info and we need to regenerate sysfs_btf.o with
updated contents, but it's too late at that point).

If BTF couldn't be generated due to missing or too old pahole,
sysfs_btf.c handles that gracefully by detecting that
_binary__btf_kernel_bin_start (weak symbol) is 0 and not creating
/sys/kernel/btf at all.

v2->v3:
- added Documentation/ABI/testing/sysfs-kernel-btf (Greg K-H);
- created proper kobject (btf_kobj) for btf directory (Greg K-H);
- undo v2 change of reusing vmlinux, as it causes extra kallsyms pass
  due to initially missing  __binary__btf_kernel_bin_{start/end} symbols;

v1->v2:
- allow kallsyms stage to re-use vmlinux generated by gen_btf();

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-08-13 16:14:15 +02:00
Zhou Wang
8201fdf49f Documentation: Add debugfs doc for hisi_zip
Add debugfs descriptions for HiSilicon ZIP and QM driver.

Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-08-09 15:11:56 +10:00
Narendra K
1c5fecb612 efi: Export Runtime Configuration Interface table to sysfs
System firmware advertises the address of the 'Runtime
Configuration Interface table version 2 (RCI2)' via
an EFI Configuration Table entry. This code retrieves the RCI2
table from the address and exports it to sysfs as a binary
attribute 'rci2' under /sys/firmware/efi/tables directory.
The approach adopted is similar to the attribute 'DMI' under
/sys/firmware/dmi/tables.

RCI2 table contains BIOS HII in XML format and is used to populate
BIOS setup page in Dell EMC OpenManage Server Administrator tool.
The BIOS setup page contains BIOS tokens which can be configured.

Signed-off-by: Narendra K <Narendra.K@dell.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-08-08 11:10:25 +03:00
Thiago Jung Bauermann
9044d627fd ima: Add modsig appraise_type option for module-style appended signatures
Introduce the modsig keyword to the IMA policy syntax to specify that
a given hook should expect the file to have the IMA signature appended
to it. Here is how it can be used in a rule:

appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig|modsig

With this rule, IMA will accept either a signature stored in the extended
attribute or an appended signature.

For now, the rule above will behave exactly the same as if
appraise_type=imasig was specified. The actual modsig implementation
will be introduced separately.

Suggested-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2019-08-05 18:40:21 -04:00
Bjorn Andersson
9aebf4de22 base: soc: Add serial_number attribute to soc
Add new attribute named "serial_number" as a standard interface for
user space to acquire the serial number of the device.

For ST-Ericsson SoCs this is exposed by the cryptically named "soc_id"
attribute, but this provides a human readable standardized name for this
property.

Tested-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vaishali Thakkar <vaishali.thakkar@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-05 14:56:30 -07:00
Wu Hao
52eb6d31a1 fpga: dfl: fme: add capability sysfs interfaces
This patch adds 3 read-only sysfs interfaces for FPGA Management Engine
(FME) block for capabilities including cache_size, fabric_version and
socket_id.

Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/1564914022-3710-11-git-send-email-hao.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-05 18:03:20 +02:00
Wu Hao
d2ad5ac1cd fpga: dfl: afu: add AFU state related sysfs interfaces
This patch introduces more sysfs interfaces for Accelerated
Function Unit (AFU). These interfaces allow users to read
current AFU Power State (APx), read / clear AFU Power (APx)
events which are sticky to identify transient APx state,
and manage AFU's LTR (latency tolerance reporting).

Signed-off-by: Ananda Ravuri <ananda.ravuri@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/1564914022-3710-4-git-send-email-hao.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-05 17:56:47 +02:00
Kalesh Singh
2c8db5bef9 PM/sleep: Expose suspend stats in sysfs
Userspace can get suspend stats from the suspend stats debugfs node.
Since debugfs doesn't have stable ABI, expose suspend stats in
sysfs under /sys/power/suspend_stats.

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-05 12:03:18 +02:00
Mauro Carvalho Chehab
e9bb627561 docs: w1: convert to ReST and add to the kAPI group of docs
The 1wire documentation was written with w1 developers in
mind, so, it makes sense to add it together with the driver-api
set.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-07-31 14:16:17 -06:00
Benjamin Gaignard
b299d00420 IIO: stm32: Remove quadrature related functions from trigger driver
Quadrature feature is now hosted on it own framework.
Remove quadrature related code from stm32-trigger driver to avoid
code duplication and simplify the ABI.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27 20:11:18 +01:00
Geert Uytterhoeven
daa2b5c622 Documentation: ABI: iio: Add missing newline at end of file
"git diff" says:

    \ No newline at end of file

after modifying the files.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27 20:11:16 +01:00
Mauro Carvalho Chehab
0854d589aa docs: ABI: remove extension from sysfs-class-mic.txt
Files under ABI doesn't end with a .txt extension.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Link: https://lore.kernel.org/r/5113d1ae9d2dd3bc685bbb65655abd67e26f48c4.1562668471.git.mchehab+samsung@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-25 14:38:38 +02:00
Alexander Shishkin
615c164da0 intel_th: msu: Introduce buffer interface
Introduces a concept of external buffers, which is a mechanism for creating
trace sinks that would receive trace data from MSC buffers and transfer it
elsewhere.

A external buffer can implement its own window allocation/deallocation if
it has to. It must provide a callback that's used to notify it when a
window fills up, so that it can then start a DMA transaction from that
window 'elsewhere'. This window remains in a 'locked' state and won't be
used for storing new trace data until the buffer 'unlocks' it with a
provided API call, at which point the window can be used again for storing
trace data.

This relies on a functional "last block" interrupt, so not all versions of
Trace Hub can use this feature, which does not reflect on existing users.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190705141425.19894-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-25 13:03:18 +02:00
Daniel Drake
9af93db9e1 platform/x86: asus: Rename "fan mode" to "fan boost mode"
The Asus WMI spec indicates that the function being controlled here
is called "Fan Boost Mode". The user-facing documentation also calls it
this.

The spec uses the term "fan mode" is used to refer to other things,
including functionality expected to appear on future products.
We missed this before as we are not dealing with the most readable of
specs, and didn't forsee any confusion around shortening the name.

Rename "fan mode" to "fan boost mode" to improve consistency with the
spec and to avoid a future naming conflict.

There is no interface breakage here since this has yet to be included
in an official kernel release. I also updated the kernel version listed
under ABI accordingly.

Signed-off-by: Daniel Drake <drake@endlessm.com>
Acked-by: Yurii Pavlovskyi <yurii.pavlovskyi@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-07-17 19:07:58 +03:00
Linus Torvalds
c309b6f242 docs conversion for v5.3-rc1
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Merge tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull rst conversion of docs from Mauro Carvalho Chehab:
 "As agreed with Jon, I'm sending this big series directly to you, c/c
  him, as this series required a special care, in order to avoid
  conflicts with other trees"

* tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (77 commits)
  docs: kbuild: fix build with pdf and fix some minor issues
  docs: block: fix pdf output
  docs: arm: fix a breakage with pdf output
  docs: don't use nested tables
  docs: gpio: add sysfs interface to the admin-guide
  docs: locking: add it to the main index
  docs: add some directories to the main documentation index
  docs: add SPDX tags to new index files
  docs: add a memory-devices subdir to driver-api
  docs: phy: place documentation under driver-api
  docs: serial: move it to the driver-api
  docs: driver-api: add remaining converted dirs to it
  docs: driver-api: add xilinx driver API documentation
  docs: driver-api: add a series of orphaned documents
  docs: admin-guide: add a series of orphaned documents
  docs: cgroup-v1: add it to the admin-guide book
  docs: aoe: add it to the driver-api book
  docs: add some documentation dirs to the driver-api book
  docs: driver-model: move it to the driver-api book
  docs: lp855x-driver.rst: add it to the driver-api book
  ...
2019-07-16 12:21:41 -07:00
Linus Torvalds
273cbf61c3 Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "New stuff from the I2C world:

   - in the core, getting irqs from ACPI is now similar to OF

   - new driver for MediaTek MT7621/7628/7688 SoCs

   - bcm2835, i801, and tegra drivers got some more attention

   - GPIO API cleanups

   - cleanups in the core headers

   - lots of usual driver updates"

* 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (74 commits)
  i2c: mt7621: Fix platform_no_drv_owner.cocci warnings
  i2c: cpm: remove casting dma_alloc
  dt-bindings: i2c: sun6i-p2wi: Fix the binding example
  dt-bindings: i2c: mv64xxx: Fix the example compatible
  i2c: i801: Documentation update
  i2c: i801: Add support for Intel Tiger Lake
  i2c: i801: Fix PCI ID sorting
  dt-bindings: i2c-stm32: document optional dmas
  i2c: i2c-stm32f7: Add I2C_SMBUS_I2C_BLOCK_DATA support
  i2c: core: Tidy up handling of init_irq
  i2c: core: Move ACPI gpio IRQ handling into i2c_acpi_get_irq
  i2c: core: Move ACPI IRQ handling to probe time
  i2c: acpi: Factor out getting the IRQ from ACPI
  i2c: acpi: Use available IRQ helper functions
  i2c: core: Allow whole core to use i2c_dev_irq_from_resources
  eeprom: at24: modify a comment referring to platform data
  dt-bindings: i2c: omap: Add new compatible for J721E SoCs
  dt-bindings: i2c: mv64xxx: Add YAML schemas
  dt-bindings: i2c: sun6i-p2wi: Add YAML schemas
  i2c: mt7621: Add MediaTek MT7621/7628/7688 I2C driver
  ...
2019-07-15 21:10:39 -07:00
Linus Torvalds
5fe7b600a1 power supply and reset changes for the v5.3 series
Core:
  * Add HWMON compat layer
  * New properties
   - input power limit
   - input voltage limit
 
 Drivers:
  * qcom-pon: add gen2 support
  * New driver for storing reboot move in NVMEM
  * New driver for Wilco EC charger configuration
  * simplify getting the adapter of a client
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Merge tag 'for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Core:
   - add HWMON compat layer
   - new properties:
       - input power limit
       - input voltage limit

  Drivers:
   - qcom-pon: add gen2 support
   - new driver for storing reboot move in NVMEM
   - new driver for Wilco EC charger configuration
   - simplify getting the adapter of a client"

* tag 'for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  power: reset: nvmem-reboot-mode: add CONFIG_OF dependency
  power_supply: wilco_ec: Add charging config driver
  power: supply: cros: allow to set input voltage and current limit
  power: supply: add input power and voltage limit properties
  power: supply: fix semicolon.cocci warnings
  power: reset: nvmem-reboot-mode: use NVMEM as reboot mode write interface
  dt-bindings: power: reset: add document for NVMEM based reboot-mode
  reset: qcom-pon: Add support for gen2 pon
  dt-bindings: power: reset: qcom: Add qcom,pm8998-pon compatibility line
  power: supply: Add HWMON compatibility layer
  power: supply: sbs-manager: simplify getting the adapter of a client
  power: supply: rt9455_charger: simplify getting the adapter of a client
  power: supply: rt5033_battery: simplify getting the adapter of a client
  power: supply: max17042_battery: simplify getting the adapter of a client
  power: supply: max17040_battery: simplify getting the adapter of a client
  power: supply: max14656_charger_detector: simplify getting the adapter of a client
  power: supply: bq25890_charger: simplify getting the adapter of a client
  power: supply: bq24257_charger: simplify getting the adapter of a client
  power: supply: bq24190_charger: simplify getting the adapter of a client
2019-07-15 21:06:15 -07:00
Linus Torvalds
fb4da215ed pci-v5.3-changes
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Merge tag 'pci-v5.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration changes:

   - Evaluate PCI Boot Configuration _DSM to learn if firmware wants us
     to preserve its resource assignments (Benjamin Herrenschmidt)

   - Simplify resource distribution (Nicholas Johnson)

   - Decode 32 GT/s link speed (Gustavo Pimentel)

  Virtualization:

   - Fix incorrect caching of VF config space size (Alex Williamson)

   - Fix VF driver probing sysfs knobs (Alex Williamson)

  Peer-to-peer DMA:

   - Fix dma_virt_ops check (Logan Gunthorpe)

  Altera host bridge driver:

   - Allow building as module (Ley Foon Tan)

  Armada 8K host bridge driver:

   - add PHYs support (Miquel Raynal)

  DesignWare host bridge driver:

   - Export APIs to support removable loadable module (Vidya Sagar)

   - Enable Relaxed Ordering erratum workaround only on Tegra20 &
     Tegra30 (Vidya Sagar)

  Hyper-V host bridge driver:

   - Fix use-after-free in eject (Dexuan Cui)

  Mobiveil host bridge driver:

   - Clean up and fix many issues, including non-identify mapped
     windows, 64-bit windows, multi-MSI, class code, INTx clearing (Hou
     Zhiqiang)

  Qualcomm host bridge driver:

   - Use clk bulk API for 2.4.0 controllers (Bjorn Andersson)

   - Add QCS404 support (Bjorn Andersson)

   - Assert PERST for at least 100ms (Niklas Cassel)

  R-Car host bridge driver:

   - Add r8a774a1 DT support (Biju Das)

  Tegra host bridge driver:

   - Add support for Gen2, opportunistic UpdateFC and ACK (PCIe protocol
     details) AER, GPIO-based PERST# (Manikanta Maddireddy)

   - Fix many issues, including power-on failure cases, interrupt
     masking in suspend, UPHY settings, AFI dynamic clock gating,
     pending DLL transactions (Manikanta Maddireddy)

  Xilinx host bridge driver:

   - Fix NWL Multi-MSI programming (Bharat Kumar Gogada)

  Endpoint support:

   - Fix 64bit BAR support (Alan Mikhak)

   - Fix pcitest build issues (Alan Mikhak, Andy Shevchenko)

  Bug fixes:

   - Fix NVIDIA GPU multi-function power dependencies (Abhishek Sahu)

   - Fix NVIDIA GPU HDA enablement issue (Lukas Wunner)

   - Ignore lockdep for sysfs "remove" (Marek Vasut)

  Misc:

   - Convert docs to reST (Changbin Du, Mauro Carvalho Chehab)"

* tag 'pci-v5.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (107 commits)
  PCI: Enable NVIDIA HDA controllers
  tools: PCI: Fix installation when `make tools/pci_install`
  PCI: dwc: pci-dra7xx: Fix compilation when !CONFIG_GPIOLIB
  PCI: Fix typos and whitespace errors
  PCI: mobiveil: Fix INTx interrupt clearing in mobiveil_pcie_isr()
  PCI: mobiveil: Fix infinite-loop in the INTx handling function
  PCI: mobiveil: Move PCIe PIO enablement out of inbound window routine
  PCI: mobiveil: Add upper 32-bit PCI base address setup in inbound window
  PCI: mobiveil: Add upper 32-bit CPU base address setup in outbound window
  PCI: mobiveil: Mask out hardcoded bits in inbound/outbound windows setup
  PCI: mobiveil: Clear the control fields before updating it
  PCI: mobiveil: Add configured inbound windows counter
  PCI: mobiveil: Fix the valid check for inbound and outbound windows
  PCI: mobiveil: Clean-up program_{ib/ob}_windows()
  PCI: mobiveil: Remove an unnecessary return value check
  PCI: mobiveil: Fix error return values
  PCI: mobiveil: Refactor the MEM/IO outbound window initialization
  PCI: mobiveil: Make some register updates more readable
  PCI: mobiveil: Reformat the code for readability
  dt-bindings: PCI: mobiveil: Change gpio_slave and apb_csr to optional
  ...
2019-07-15 20:44:49 -07:00
Linus Torvalds
2a3c389a0f 5.3 Merge window RDMA pull request
A smaller cycle this time. Notably we see another new driver, 'Soft
 iWarp', and the deletion of an ancient unused driver for nes.
 
 - Revise and simplify the signature offload RDMA MR APIs
 
 - More progress on hoisting object allocation boiler plate code out of the
   drivers
 
 - Driver bug fixes and revisions for hns, hfi1, efa, cxgb4, qib, i40iw
 
 - Tree wide cleanups: struct_size, put_user_page, xarray, rst doc conversion
 
 - Removal of obsolete ib_ucm chardev and nes driver
 
 - netlink based discovery of chardevs and autoloading of the modules
   providing them
 
 - Move more of the rdamvt/hfi1 uapi to include/uapi/rdma
 
 - New driver 'siw' for software based iWarp running on top of netdev,
   much like rxe's software RoCE.
 
 - mlx5 feature to report events in their raw devx format to userspace
 
 - Expose per-object counters through rdma tool
 
 - Adaptive interrupt moderation for RDMA (DIM), sharing the DIM core
   from netdev
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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:
 "A smaller cycle this time. Notably we see another new driver, 'Soft
  iWarp', and the deletion of an ancient unused driver for nes.

   - Revise and simplify the signature offload RDMA MR APIs

   - More progress on hoisting object allocation boiler plate code out
     of the drivers

   - Driver bug fixes and revisions for hns, hfi1, efa, cxgb4, qib,
     i40iw

   - Tree wide cleanups: struct_size, put_user_page, xarray, rst doc
     conversion

   - Removal of obsolete ib_ucm chardev and nes driver

   - netlink based discovery of chardevs and autoloading of the modules
     providing them

   - Move more of the rdamvt/hfi1 uapi to include/uapi/rdma

   - New driver 'siw' for software based iWarp running on top of netdev,
     much like rxe's software RoCE.

   - mlx5 feature to report events in their raw devx format to userspace

   - Expose per-object counters through rdma tool

   - Adaptive interrupt moderation for RDMA (DIM), sharing the DIM core
     from netdev"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (194 commits)
  RMDA/siw: Require a 64 bit arch
  RDMA/siw: Mark expected switch fall-throughs
  RDMA/core: Fix -Wunused-const-variable warnings
  rdma/siw: Remove set but not used variable 's'
  rdma/siw: Add missing dependencies on LIBCRC32C and DMA_VIRT_OPS
  RDMA/siw: Add missing rtnl_lock around access to ifa
  rdma/siw: Use proper enumerated type in map_cqe_status
  RDMA/siw: Remove unnecessary kthread create/destroy printouts
  IB/rdmavt: Fix variable shadowing issue in rvt_create_cq
  RDMA/core: Fix race when resolving IP address
  RDMA/core: Make rdma_counter.h compile stand alone
  IB/core: Work on the caller socket net namespace in nldev_newlink()
  RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM
  RDMA/mlx5: Set RDMA DIM to be enabled by default
  RDMA/nldev: Added configuration of RDMA dynamic interrupt moderation to netlink
  RDMA/core: Provide RDMA DIM support for ULPs
  linux/dim: Implement RDMA adaptive moderation (DIM)
  IB/mlx5: Report correctly tag matching rendezvous capability
  docs: infiniband: add it to the driver-api bookset
  IB/mlx5: Implement VHCA tunnel mechanism in DEVX
  ...
2019-07-15 20:38:15 -07:00
Mauro Carvalho Chehab
c2746a1eb7 docs: gpio: add sysfs interface to the admin-guide
While this is stated as obsoleted, the sysfs interface described
there is still valid, and belongs to the admin-guide.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
2019-07-15 11:03:03 -03:00
Mauro Carvalho Chehab
baa293e954 docs: driver-api: add a series of orphaned documents
There are lots of documents under Documentation/*.txt and a few other
orphan documents elsehwere that belong to the driver-API book.

Move them to their right place.

Reviewed-by: Cornelia Huck <cohuck@redhat.com> # vfio-related parts
Acked-by: Logan Gunthorpe <logang@deltatee.com> # switchtec
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-07-15 11:03:02 -03:00
Mauro Carvalho Chehab
4f4cfa6c56 docs: admin-guide: add a series of orphaned documents
There are lots of documents that belong to the admin-guide but
are on random places (most under Documentation root dir).

Move them to the admin guide.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-07-15 11:03:02 -03:00
Mauro Carvalho Chehab
9e1cbede26 docs: admin-guide: add laptops documentation
The docs under Documentation/laptops contain users specific
information.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2019-07-15 11:03:01 -03:00
Mauro Carvalho Chehab
b02f1651ff docs: laptops: convert to ReST
Rename the laptops documentation files to ReST, add an
index for them and adjust in order to produce a nice html
output via the Sphinx build system.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2019-07-15 09:20:25 -03:00
Linus Torvalds
5516745311 platform-drivers-x86 for v5.3-1
ASUS WMI driver got a big refactoring in order to support the TUF Gaming
 laptops. Besides that, the regression with backlight being permanently off
 on various EeePC laptops has been fixed.
 
 Accelerometer on HP ProBook 450 G0 shows wrong measurements due to
 X axis being inverted. This has been fixed.
 
 Intel PMC core driver has been extended to be ACPI enumerated
 if the DSDT provides device with _HID "INT33A1". This allows
 to convert the driver to be pure platform and support new hardware
 purely based on ACPI DSDT.
 
 From now on the Intel Speed Select Technology is supported thru
 a corresponding driver. This driver provides an access to the features
 of the ISST, such as Performance Profile, Core Power, Base frequency and
 Turbo Frequency.
 
 Mellanox platform drivers has been refactored and now extended
 to support more systems, including new coming ones.
 
 The OLPC XO-1.75 platform is now supported.
 
 CB4063 Beckhoff Automation board is using PMC clocks,
 provided via pmc_atom driver, for ethernet controllers in a way
 that they can't be managed by the clock driver. The quirk
 has been extended to cover this case.
 
 Touchscreen on Chuwi Hi10 Plus tablet has been enabled. Meanwhile
 the information of Chuwi Hi10 Air has been fixed to cover more models
 based on the same platform.
 
 Xiaomi notebooks have WMI interface enabled. Thus, the driver to support it
 has been provided. It required some extension of the generic WMI library,
 which allows to propagate opaque context to the ->probe() of the
 individual drivers.
 
 This release includes debugfs clean up from Greg KH for several drivers
 that drop return code check and make debugfs absence or failure non-fatal.
 
 Miscellaneous fixes here and there, mostly for Acer WMI and
 various Intel drivers.
 
 The listed below commits are duplicated due to previously pushed fixes in v5.2 cycle:
 - 1dd93f873d platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
 - 89ae3a0736 platform/x86: intel-vbtn: Report switch events when event wakes device
 - fa882fc80d platform/x86: mlx-platform: Fix parent device in i2c-mux-reg device registration
 - 0bfcd24b39 platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow
 
 The following is an automated git shortlog grouped by driver:
 
 acer-wmi:
  -  Mark expected switch fall-throughs
  -  no need to check return value of debugfs_create functions
 
 asus-nb-wmi:
  -  Add microphone mute key code
 
 asus-wmi:
  -  Use dev_get_drvdata()
  -  Do not disable keyboard backlight on unloading
  -  Switch fan boost mode
  -  Enhance detection of thermal data
  -  Organize code into sections
  -  Refactor error handling
  -  Support WMI event queue
  -  Refactor WMI event handling
  -  Improve DSTS WMI method ID detection
  -  Increase input buffer size of WMI methods
  -  Fix preserving keyboard backlight intensity on load
  -  Fix hwmon device cleanup
  -  no need to check return value of debugfs_create functions
  -  Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
 
 dell-laptop:
  -  no need to check return value of debugfs_create functions
 
 hp_accel:
  -  Add support for HP ProBook 450 G0
 
 ideapad-laptop:
  -  no need to check return value of debugfs_create functions
 
 intel_int0002_vgpio:
  -  Get rid of custom ICPU() macro
 
 intel_menlow:
  -  avoid null pointer deference error
 
 intel_pmc:
  -  no need to check return value of debugfs_create functions
 
 intel_pmc_core:
  -  Attach using APCI HID "INT33A1"
  -  transform Pkg C-state residency from TSC ticks into microseconds
 
 intel_telemetry:
  -  no need to check return value of debugfs_create functions
 
 intel-vbtn:
  -  Report switch events when event wakes device
 
 ISST:
  -  Restore state on resume
  -  Add Intel Speed Select PUNIT MSR interface
  -  Add Intel Speed Select mailbox interface via MSRs
  -  Add Intel Speed Select mailbox interface via PCI
  -  Add Intel Speed Select mmio interface
  -  Add IOCTL to Translate Linux logical CPU to PUNIT CPU number
  -  Store per CPU information
  -  Add common API to register and handle ioctls
  -  Update ioctl-number.txt for Intel Speed Select interface
  -  A tool to validate Intel Speed Select commands
  -  Add .gitignore file
 
 MAINTAINERS:
  -  Update for Intel Speed Select Technology
 
 mlx-platform:
  -  Fix error handling in mlxplat_init()
  -  Add more reset cause attributes
  -  Modify DMI matching order
  -  Add regmap structure for the next generation systems
  -  Change API for i2c-mlxcpld driver activation
  -  Move regmap initialization before all drivers activation
  -  Fix parent device in i2c-mux-reg device registration
  -  Add new attribute for mlxreg-io sysfs interfaces
 
 pcengines-apuv2:
  -  Make two symbols static
  -  Fix PCENGINES_APU2 Kconfig warning
 
 OLPC:
  -  Add a config menu category for XO 1.75
  -  Require CONFIG_POWER_SUPPLY for XO-1.75 EC
  -  Fix olpc_xo175_ec_cmd() return value
  -  Make olpc_dt_compatible_match() static __init
  -  Add INPUT dependencies
  -  Fix build error without CONFIG_SPI
  -  Add a regulator for the DCON
  -  Add XO-1.75 EC driver
  -  Use BIT() and GENMASK() for event masks
  -  Avoid a warning if the EC didn't register yet
  -  Move EC-specific functionality out from x86
  -  Remove an unused include
  -  Add OLPC XO-1.75 EC bindings
 
 platform/mellanox:
  -  mlxreg-hotplug: Add devm_free_irq call to remove flow
 
 pmc_atom:
  -  Add CB4063 Beckhoff Automation board to critclk_systems DMI table
  -  no need to check return value of debugfs_create functions
 
 Kconfig:
  - Remove left-over BACKLIGHT_LCD_SUPPORT
 
 samsung-laptop:
  -  no need to check return value of debugfs_create functions
 
 touchscreen_dmi:
  -  Update Hi10 Air filter
  -  Add info for the CHUWI Hi10 Plus tablet.
 
 wmi:
  -  add Xiaomi WMI key driver
  -  add context argument to the probe function
  -  add context pointer field to struct wmi_device_id
  -  Add function to get _UID of WMI device
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Merge tag 'platform-drivers-x86-v5.3-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Andy Shevchenko:
 "Gathered a bunch of x86 platform driver changes. It's rather big,
  since includes two big refactors and completely new driver:

   - ASUS WMI driver got a big refactoring in order to support the TUF
     Gaming laptops. Besides that, the regression with backlight being
     permanently off on various EeePC laptops has been fixed.

   - Accelerometer on HP ProBook 450 G0 shows wrong measurements due to
     X axis being inverted. This has been fixed.

   - Intel PMC core driver has been extended to be ACPI enumerated if
     the DSDT provides device with _HID "INT33A1". This allows to
     convert the driver to be pure platform and support new hardware
     purely based on ACPI DSDT.

   - From now on the Intel Speed Select Technology is supported thru a
     corresponding driver. This driver provides an access to the
     features of the ISST, such as Performance Profile, Core Power, Base
     frequency and Turbo Frequency.

   - Mellanox platform drivers has been refactored and now extended to
     support more systems, including new coming ones.

   - The OLPC XO-1.75 platform is now supported.

   - CB4063 Beckhoff Automation board is using PMC clocks, provided via
     pmc_atom driver, for ethernet controllers in a way that they can't
     be managed by the clock driver. The quirk has been extended to
     cover this case.

   - Touchscreen on Chuwi Hi10 Plus tablet has been enabled. Meanwhile
     the information of Chuwi Hi10 Air has been fixed to cover more
     models based on the same platform.

   - Xiaomi notebooks have WMI interface enabled. Thus, the driver to
     support it has been provided. It required some extension of the
     generic WMI library, which allows to propagate opaque context to
     the ->probe() of the individual drivers.

  This release includes debugfs clean up from Greg KH for several
  drivers that drop return code check and make debugfs absence or
  failure non-fatal.

  Also miscellaneous fixes here and there, mostly for Acer WMI and
  various Intel drivers"

* tag 'platform-drivers-x86-v5.3-1' of git://git.infradead.org/linux-platform-drivers-x86: (74 commits)
  platform/x86: Fix PCENGINES_APU2 Kconfig warning
  tools/power/x86/intel-speed-select: Add .gitignore file
  platform/x86: mlx-platform: Fix error handling in mlxplat_init()
  platform/x86: intel_pmc_core: Attach using APCI HID "INT33A1"
  platform/x86: intel_pmc_core: transform Pkg C-state residency from TSC ticks into microseconds
  platform/x86: asus-wmi: Use dev_get_drvdata()
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform/x86: mlx-platform: Add more reset cause attributes
  platform/x86: mlx-platform: Modify DMI matching order
  platform/x86: mlx-platform: Add regmap structure for the next generation systems
  platform/x86: mlx-platform: Change API for i2c-mlxcpld driver activation
  platform/x86: mlx-platform: Move regmap initialization before all drivers activation
  MAINTAINERS: Update for Intel Speed Select Technology
  tools/power/x86: A tool to validate Intel Speed Select commands
  platform/x86: ISST: Restore state on resume
  platform/x86: ISST: Add Intel Speed Select PUNIT MSR interface
  platform/x86: ISST: Add Intel Speed Select mailbox interface via MSRs
  platform/x86: ISST: Add Intel Speed Select mailbox interface via PCI
  platform/x86: ISST: Add Intel Speed Select mmio interface
  platform/x86: ISST: Add IOCTL to Translate Linux logical CPU to PUNIT CPU number
  ...
2019-07-14 16:51:47 -07:00
Linus Torvalds
a641a88e5d f2fs-for-5.3-rc1
In this round, we've introduced native swap file support which can exploit DIO,
 enhanced existing checkpoint=disable feature with additional mount option to
 tune the triggering condition, and allowed user to preallocate physical blocks
 in a pinned file which will be useful to avoid f2fs fragmentation in append-only
 workloads. In addition, we've fixed subtle quota corruption issue.
 
 Enhancement:
  - add swap file support which uses DIO
  - allocate blocks for pinned file
  - allow SSR and mount option to enhance checkpoint=disable
  - enhance IPU IOs
  - add more sanity checks such as memory boundary access
 
 Bug fix:
  - quota corruption in very corner case of error-injected SPO case
  - fix root_reserved on remount and some wrong counts
  - add missing fsck flag
 
 Some patches were also introduced to clean up ambiguous i_flags and debugging
 messages codes.
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Merge tag 'f2fs-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've introduced native swap file support which can
  exploit DIO, enhanced existing checkpoint=disable feature with
  additional mount option to tune the triggering condition, and allowed
  user to preallocate physical blocks in a pinned file which will be
  useful to avoid f2fs fragmentation in append-only workloads. In
  addition, we've fixed subtle quota corruption issue.

  Enhancements:
   - add swap file support which uses DIO
   - allocate blocks for pinned file
   - allow SSR and mount option to enhance checkpoint=disable
   - enhance IPU IOs
   - add more sanity checks such as memory boundary access

  Bug fixes:
   - quota corruption in very corner case of error-injected SPO case
   - fix root_reserved on remount and some wrong counts
   - add missing fsck flag

  Some patches were also introduced to clean up ambiguous i_flags and
  debugging messages codes"

* tag 'f2fs-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (33 commits)
  f2fs: improve print log in f2fs_sanity_check_ckpt()
  f2fs: avoid out-of-range memory access
  f2fs: fix to avoid long latency during umount
  f2fs: allow all the users to pin a file
  f2fs: support swap file w/ DIO
  f2fs: allocate blocks for pinned file
  f2fs: fix is_idle() check for discard type
  f2fs: add a rw_sem to cover quota flag changes
  f2fs: set SBI_NEED_FSCK for xattr corruption case
  f2fs: use generic EFSBADCRC/EFSCORRUPTED
  f2fs: Use DIV_ROUND_UP() instead of open-coding
  f2fs: print kernel message if filesystem is inconsistent
  f2fs: introduce f2fs_<level> macros to wrap f2fs_printk()
  f2fs: avoid get_valid_blocks() for cleanup
  f2fs: ioctl for removing a range from F2FS
  f2fs: only set project inherit bit for directory
  f2fs: separate f2fs i_flags from fs_flags and ext4 i_flags
  f2fs: replace ktype default_attrs with default_groups
  f2fs: Add option to limit required GC for checkpoint=disable
  f2fs: Fix accounting for unusable blocks
  ...
2019-07-12 17:28:24 -07:00
Linus Torvalds
f632a8170a Driver Core and debugfs changes for 5.3-rc1
Here is the "big" driver core and debugfs changes for 5.3-rc1
 
 It's a lot of different patches, all across the tree due to some api
 changes and lots of debugfs cleanups.  Because of this, there is going
 to be some merge issues with your tree at the moment, I'll follow up
 with the expected resolutions to make it easier for you.
 
 Other than the debugfs cleanups, in this set of changes we have:
 	- bus iteration function cleanups (will cause build warnings
 	  with s390 and coresight drivers in your tree)
 	- scripts/get_abi.pl tool to display and parse Documentation/ABI
 	  entries in a simple way
 	- cleanups to Documenatation/ABI/ entries to make them parse
 	  easier due to typos and other minor things
 	- default_attrs use for some ktype users
 	- driver model documentation file conversions to .rst
 	- compressed firmware file loading
 	- deferred probe fixes
 
 All of these have been in linux-next for a while, with a bunch of merge
 issues that Stephen has been patient with me for.  Other than the merge
 issues, functionality is working properly in linux-next :)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core and debugfs updates from Greg KH:
 "Here is the "big" driver core and debugfs changes for 5.3-rc1

  It's a lot of different patches, all across the tree due to some api
  changes and lots of debugfs cleanups.

  Other than the debugfs cleanups, in this set of changes we have:

   - bus iteration function cleanups

   - scripts/get_abi.pl tool to display and parse Documentation/ABI
     entries in a simple way

   - cleanups to Documenatation/ABI/ entries to make them parse easier
     due to typos and other minor things

   - default_attrs use for some ktype users

   - driver model documentation file conversions to .rst

   - compressed firmware file loading

   - deferred probe fixes

  All of these have been in linux-next for a while, with a bunch of
  merge issues that Stephen has been patient with me for"

* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
  debugfs: make error message a bit more verbose
  orangefs: fix build warning from debugfs cleanup patch
  ubifs: fix build warning after debugfs cleanup patch
  driver: core: Allow subsystems to continue deferring probe
  drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
  arch_topology: Remove error messages on out-of-memory conditions
  lib: notifier-error-inject: no need to check return value of debugfs_create functions
  swiotlb: no need to check return value of debugfs_create functions
  ceph: no need to check return value of debugfs_create functions
  sunrpc: no need to check return value of debugfs_create functions
  ubifs: no need to check return value of debugfs_create functions
  orangefs: no need to check return value of debugfs_create functions
  nfsd: no need to check return value of debugfs_create functions
  lib: 842: no need to check return value of debugfs_create functions
  debugfs: provide pr_fmt() macro
  debugfs: log errors when something goes wrong
  drivers: s390/cio: Fix compilation warning about const qualifiers
  drivers: Add generic helper to match by of_node
  driver_find_device: Unify the match function with class_find_device()
  bus_find_device: Unify the match callback with class_find_device
  ...
2019-07-12 12:24:03 -07:00
Linus Torvalds
ef8f3d48af Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:
 "Am experimenting with splitting MM up into identifiable subsystems
  perhaps with a view to gitifying it in complex ways. Also with more
  verbose "incoming" emails.

  Most of MM is here and a few other trees.

  Subsystems affected by this patch series:
   - hotfixes
   - iommu
   - scripts
   - arch/sh
   - ocfs2
   - mm:slab-generic
   - mm:slub
   - mm:kmemleak
   - mm:kasan
   - mm:cleanups
   - mm:debug
   - mm:pagecache
   - mm:swap
   - mm:memcg
   - mm:gup
   - mm:pagemap
   - mm:infrastructure
   - mm:vmalloc
   - mm:initialization
   - mm:pagealloc
   - mm:vmscan
   - mm:tools
   - mm:proc
   - mm:ras
   - mm:oom-kill

  hotfixes:
      mm: vmscan: scan anonymous pages on file refaults
      mm/nvdimm: add is_ioremap_addr and use that to check ioremap address
      mm/memcontrol: fix wrong statistics in memory.stat
      mm/z3fold.c: lock z3fold page before  __SetPageMovable()
      nilfs2: do not use unexported cpu_to_le32()/le32_to_cpu() in uapi header
      MAINTAINERS: nilfs2: update email address

  iommu:
      include/linux/dmar.h: replace single-char identifiers in macros

  scripts:
      scripts/decode_stacktrace: match basepath using shell prefix operator, not regex
      scripts/decode_stacktrace: look for modules with .ko.debug extension
      scripts/spelling.txt: drop "sepc" from the misspelling list
      scripts/spelling.txt: add spelling fix for prohibited
      scripts/decode_stacktrace: Accept dash/underscore in modules
      scripts/spelling.txt: add more spellings to spelling.txt

  arch/sh:
      arch/sh/configs/sdk7786_defconfig: remove CONFIG_LOGFS
      sh: config: remove left-over BACKLIGHT_LCD_SUPPORT
      sh: prevent warnings when using iounmap

  ocfs2:
      fs: ocfs: fix spelling mistake "hearbeating" -> "heartbeat"
      ocfs2/dlm: use struct_size() helper
      ocfs2: add last unlock times in locking_state
      ocfs2: add locking filter debugfs file
      ocfs2: add first lock wait time in locking_state
      ocfs: no need to check return value of debugfs_create functions
      fs/ocfs2/dlmglue.c: unneeded variable: "status"
      ocfs2: use kmemdup rather than duplicating its implementation

  mm:slab-generic:
    Patch series "mm/slab: Improved sanity checking":
      mm/slab: validate cache membership under freelist hardening
      mm/slab: sanity-check page type when looking up cache
      lkdtm/heap: add tests for freelist hardening

  mm:slub:
      mm/slub.c: avoid double string traverse in kmem_cache_flags()
      slub: don't panic for memcg kmem cache creation failure

  mm:kmemleak:
      mm/kmemleak.c: fix check for softirq context
      mm/kmemleak.c: change error at _write when kmemleak is disabled
      docs: kmemleak: add more documentation details

  mm:kasan:
      mm/kasan: print frame description for stack bugs
      Patch series "Bitops instrumentation for KASAN", v5:
        lib/test_kasan: add bitops tests
        x86: use static_cpu_has in uaccess region to avoid instrumentation
        asm-generic, x86: add bitops instrumentation for KASAN
      Patch series "mm/kasan: Add object validation in ksize()", v3:
        mm/kasan: introduce __kasan_check_{read,write}
        mm/kasan: change kasan_check_{read,write} to return boolean
        lib/test_kasan: Add test for double-kzfree detection
        mm/slab: refactor common ksize KASAN logic into slab_common.c
        mm/kasan: add object validation in ksize()

  mm:cleanups:
      include/linux/pfn_t.h: remove pfn_t_to_virt()
      Patch series "remove ARCH_SELECT_MEMORY_MODEL where it has no effect":
        arm: remove ARCH_SELECT_MEMORY_MODEL
        s390: remove ARCH_SELECT_MEMORY_MODEL
        sparc: remove ARCH_SELECT_MEMORY_MODEL
      mm/gup.c: make follow_page_mask() static
      mm/memory.c: trivial clean up in insert_page()
      mm: make !CONFIG_HUGE_PAGE wrappers into static inlines
      include/linux/mm_types.h: ifdef struct vm_area_struct::swap_readahead_info
      mm: remove the account_page_dirtied export
      mm/page_isolation.c: change the prototype of undo_isolate_page_range()
      include/linux/vmpressure.h: use spinlock_t instead of struct spinlock
      mm: remove the exporting of totalram_pages
      include/linux/pagemap.h: document trylock_page() return value

  mm:debug:
      mm/failslab.c: by default, do not fail allocations with direct reclaim only
      Patch series "debug_pagealloc improvements":
        mm, debug_pagelloc: use static keys to enable debugging
        mm, page_alloc: more extensive free page checking with debug_pagealloc
        mm, debug_pagealloc: use a page type instead of page_ext flag

  mm:pagecache:
      Patch series "fix filler_t callback type mismatches", v2:
        mm/filemap.c: fix an overly long line in read_cache_page
        mm/filemap: don't cast ->readpage to filler_t for do_read_cache_page
        jffs2: pass the correct prototype to read_cache_page
        9p: pass the correct prototype to read_cache_page
      mm/filemap.c: correct the comment about VM_FAULT_RETRY

  mm:swap:
      mm, swap: fix race between swapoff and some swap operations
      mm/swap_state.c: simplify total_swapcache_pages() with get_swap_device()
      mm, swap: use rbtree for swap_extent
      mm/mincore.c: fix race between swapoff and mincore

  mm:memcg:
      memcg, oom: no oom-kill for __GFP_RETRY_MAYFAIL
      memcg, fsnotify: no oom-kill for remote memcg charging
      mm, memcg: introduce memory.events.local
      mm: memcontrol: dump memory.stat during cgroup OOM
      Patch series "mm: reparent slab memory on cgroup removal", v7:
        mm: memcg/slab: postpone kmem_cache memcg pointer initialization to memcg_link_cache()
        mm: memcg/slab: rename slab delayed deactivation functions and fields
        mm: memcg/slab: generalize postponed non-root kmem_cache deactivation
        mm: memcg/slab: introduce __memcg_kmem_uncharge_memcg()
        mm: memcg/slab: unify SLAB and SLUB page accounting
        mm: memcg/slab: don't check the dying flag on kmem_cache creation
        mm: memcg/slab: synchronize access to kmem_cache dying flag using a spinlock
        mm: memcg/slab: rework non-root kmem_cache lifecycle management
        mm: memcg/slab: stop setting page->mem_cgroup pointer for slab pages
        mm: memcg/slab: reparent memcg kmem_caches on cgroup removal
      mm, memcg: add a memcg_slabinfo debugfs file

  mm:gup:
      Patch series "switch the remaining architectures to use generic GUP", v4:
        mm: use untagged_addr() for get_user_pages_fast addresses
        mm: simplify gup_fast_permitted
        mm: lift the x86_32 PAE version of gup_get_pte to common code
        MIPS: use the generic get_user_pages_fast code
        sh: add the missing pud_page definition
        sh: use the generic get_user_pages_fast code
        sparc64: add the missing pgd_page definition
        sparc64: define untagged_addr()
        sparc64: use the generic get_user_pages_fast code
        mm: rename CONFIG_HAVE_GENERIC_GUP to CONFIG_HAVE_FAST_GUP
        mm: reorder code blocks in gup.c
        mm: consolidate the get_user_pages* implementations
        mm: validate get_user_pages_fast flags
        mm: move the powerpc hugepd code to mm/gup.c
        mm: switch gup_hugepte to use try_get_compound_head
        mm: mark the page referenced in gup_hugepte
      mm/gup: speed up check_and_migrate_cma_pages() on huge page
      mm/gup.c: remove some BUG_ONs from get_gate_page()
      mm/gup.c: mark undo_dev_pagemap as __maybe_unused

  mm:pagemap:
      asm-generic, x86: introduce generic pte_{alloc,free}_one[_kernel]
      alpha: switch to generic version of pte allocation
      arm: switch to generic version of pte allocation
      arm64: switch to generic version of pte allocation
      csky: switch to generic version of pte allocation
      m68k: sun3: switch to generic version of pte allocation
      mips: switch to generic version of pte allocation
      nds32: switch to generic version of pte allocation
      nios2: switch to generic version of pte allocation
      parisc: switch to generic version of pte allocation
      riscv: switch to generic version of pte allocation
      um: switch to generic version of pte allocation
      unicore32: switch to generic version of pte allocation
      mm/pgtable: drop pgtable_t variable from pte_fn_t functions
      mm/memory.c: fail when offset == num in first check of __vm_map_pages()

  mm:infrastructure:
      mm/mmu_notifier: use hlist_add_head_rcu()

  mm:vmalloc:
      Patch series "Some cleanups for the KVA/vmalloc", v5:
        mm/vmalloc.c: remove "node" argument
        mm/vmalloc.c: preload a CPU with one object for split purpose
        mm/vmalloc.c: get rid of one single unlink_va() when merge
        mm/vmalloc.c: switch to WARN_ON() and move it under unlink_va()
      mm/vmalloc.c: spelling> s/informaion/information/

  mm:initialization:
      mm/large system hash: use vmalloc for size > MAX_ORDER when !hashdist
      mm/large system hash: clear hashdist when only one node with memory is booted

  mm:pagealloc:
      arm64: move jump_label_init() before parse_early_param()
      Patch series "add init_on_alloc/init_on_free boot options", v10:
        mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options
        mm: init: report memory auto-initialization features at boot time

  mm:vmscan:
      mm: vmscan: remove double slab pressure by inc'ing sc->nr_scanned
      mm: vmscan: correct some vmscan counters for THP swapout

  mm:tools:
      tools/vm/slabinfo: order command line options
      tools/vm/slabinfo: add partial slab listing to -X
      tools/vm/slabinfo: add option to sort by partial slabs
      tools/vm/slabinfo: add sorting info to help menu

  mm:proc:
      proc: use down_read_killable mmap_sem for /proc/pid/maps
      proc: use down_read_killable mmap_sem for /proc/pid/smaps_rollup
      proc: use down_read_killable mmap_sem for /proc/pid/pagemap
      proc: use down_read_killable mmap_sem for /proc/pid/clear_refs
      proc: use down_read_killable mmap_sem for /proc/pid/map_files
      mm: use down_read_killable for locking mmap_sem in access_remote_vm
      mm: smaps: split PSS into components
      mm: vmalloc: show number of vmalloc pages in /proc/meminfo

  mm:ras:
      mm/memory-failure.c: clarify error message

  mm:oom-kill:
      mm: memcontrol: use CSS_TASK_ITER_PROCS at mem_cgroup_scan_tasks()
      mm, oom: refactor dump_tasks for memcg OOMs
      mm, oom: remove redundant task_in_mem_cgroup() check
      oom: decouple mems_allowed from oom_unkillable_task
      mm/oom_kill.c: remove redundant OOM score normalization in select_bad_process()"

* akpm: (147 commits)
  mm/oom_kill.c: remove redundant OOM score normalization in select_bad_process()
  oom: decouple mems_allowed from oom_unkillable_task
  mm, oom: remove redundant task_in_mem_cgroup() check
  mm, oom: refactor dump_tasks for memcg OOMs
  mm: memcontrol: use CSS_TASK_ITER_PROCS at mem_cgroup_scan_tasks()
  mm/memory-failure.c: clarify error message
  mm: vmalloc: show number of vmalloc pages in /proc/meminfo
  mm: smaps: split PSS into components
  mm: use down_read_killable for locking mmap_sem in access_remote_vm
  proc: use down_read_killable mmap_sem for /proc/pid/map_files
  proc: use down_read_killable mmap_sem for /proc/pid/clear_refs
  proc: use down_read_killable mmap_sem for /proc/pid/pagemap
  proc: use down_read_killable mmap_sem for /proc/pid/smaps_rollup
  proc: use down_read_killable mmap_sem for /proc/pid/maps
  tools/vm/slabinfo: add sorting info to help menu
  tools/vm/slabinfo: add option to sort by partial slabs
  tools/vm/slabinfo: add partial slab listing to -X
  tools/vm/slabinfo: order command line options
  mm: vmscan: correct some vmscan counters for THP swapout
  mm: vmscan: remove double slab pressure by inc'ing sc->nr_scanned
  ...
2019-07-12 11:40:28 -07:00
Luigi Semenzato
ee2ad71b07 mm: smaps: split PSS into components
Report separate components (anon, file, and shmem) for PSS in
smaps_rollup.

This helps understand and tune the memory manager behavior in consumer
devices, particularly mobile devices.  Many of them (e.g.  chromebooks and
Android-based devices) use zram for anon memory, and perform disk reads
for discarded file pages.  The difference in latency is large (e.g.
reading a single page from SSD is 30 times slower than decompressing a
zram page on one popular device), thus it is useful to know how much of
the PSS is anon vs.  file.

All the information is already present in /proc/pid/smaps, but much more
expensive to obtain because of the large size of that procfs entry.

This patch also removes a small code duplication in smaps_account, which
would have gotten worse otherwise.

Also updated Documentation/filesystems/proc.txt (the smaps section was a
bit stale, and I added a smaps_rollup section) and
Documentation/ABI/testing/procfs-smaps_rollup.

[semenzato@chromium.org: v5]
  Link: http://lkml.kernel.org/r/20190626234333.44608-1-semenzato@chromium.org
Link: http://lkml.kernel.org/r/20190626180429.174569-1-semenzato@chromium.org
Signed-off-by: Luigi Semenzato <semenzato@chromium.org>
Acked-by: Yu Zhao <yuzhao@chromium.org>
Cc: Sonny Rao <sonnyrao@chromium.org>
Cc: Yu Zhao <yuzhao@chromium.org>
Cc: Brian Geffon <bgeffon@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-12 11:05:47 -07:00
Linus Torvalds
d7d170a8e3 chrome platform changes for v5.3
* CrOS EC:
 
 - Add new CrOS ISHTP transport protocol
 - Add proper documentation for debugfs entries and expose resume and uptime files
 - Select LPC transport protocol variant at runtime.
 - Add lid angle sensor driver
 - Fix oops on suspend/resume for lightbar driver
 - Set CrOS SPI transport protol in realtime
 
 * Wilco EC:
 
 - Add telemetry char device interface
 - Add support for event handling
 - Add new sysfs attributes
 
 * Misc:
 - Contains ib-mfd-cros-v5.3 immutable branch from mfd, with cros_ec_commands.h
   header freshly synced with Chrome OS's EC project.
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Merge tag 'tag-chrome-platform-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung
 "CrOS EC:
   - Add new CrOS ISHTP transport protocol
   - Add proper documentation for debugfs entries and expose resume and
     uptime files
   - Select LPC transport protocol variant at runtime.
   - Add lid angle sensor driver
   - Fix oops on suspend/resume for lightbar driver
   - Set CrOS SPI transport protol in realtime

  Wilco EC:
   - Add telemetry char device interface
   - Add support for event handling
   - Add new sysfs attributes

  Misc:
   - Contains ib-mfd-cros-v5.3 immutable branch from mfd, with
     cros_ec_commands.h header freshly synced with Chrome OS's EC
     project"

* tag 'tag-chrome-platform-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: (54 commits)
  mfd / platform: cros_ec_debugfs: Expose resume result via debugfs
  platform/chrome: lightbar: Get drvdata from parent in suspend/resume
  iio: cros_ec: Add lid angle driver
  platform/chrome: wilco_ec: Add circular buffer as event queue
  platform/chrome: cros_ec_lpc_mec: Fix kernel-doc comment first line
  platform/chrome: cros_ec_lpc: Choose Microchip EC at runtime
  platform/chrome: cros_ec_lpc: Merge cros_ec_lpc and cros_ec_lpc_reg
  Input: cros_ec_keyb: mask out extra flags in event_type
  platform/chrome: wilco_ec: Fix unreleased lock in event_read()
  platform/chrome: cros_ec_debugfs: cros_ec_uptime_fops can be static
  platform/chrome: cros_ec_debugfs: Add debugfs ABI documentation
  platform/chrome: cros_ec_debugfs: Fix kernel-doc comment first line
  platform/chrome: cros_ec_debugfs: Add debugfs entry to retrieve EC uptime
  mfd: cros_ec: Update I2S API
  mfd: cros_ec: Add Management API entry points
  mfd: cros_ec: Add SKU ID and Secure storage API
  mfd: cros_ec: Add API for rwsig
  mfd: cros_ec: Add API for Fingerprint support
  mfd: cros_ec: Add API for Touchpad support
  mfd: cros_ec: Add API for EC-EC communication
  ...
2019-07-11 18:45:29 -07:00
Linus Torvalds
e786741ff1 Staging / IIO driver update for 5.3-rc1
Here is the big Staging and IIO driver update for 5.3-rc1.
 
 Lots of new IIO drivers are in here, along with loads of tiny staging
 driver cleanups and fixes.  Overall we almost break even with the same
 lines added as removed.
 
 Full details are in the shortlog, they are too large to list here.
 
 All of these changes have been in linux-next for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver updates from Greg KH:
 "Here is the big Staging and IIO driver update for 5.3-rc1.

  Lots of new IIO drivers are in here, along with loads of tiny staging
  driver cleanups and fixes. Overall we almost break even with the same
  lines added as removed.

  Full details are in the shortlog, they are too large to list here.

  All of these changes have been in linux-next for a while with no
  reported issues"

* tag 'staging-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (608 commits)
  staging: kpc2000: simplify comparison to NULL in fileops.c
  staging: kpc2000: simplify comparison to NULL in dma.c
  staging: kpc2000: simplify comparison to NULL in kpc2000_spi.c
  staging: rtl8723bs: hal: remove redundant assignment to packetType
  staging: rtl8723bs: Change return type of hal_btcoex_IsBtDisabled()
  staging: rtl8723bs: Remove rtw_btcoex_DisplayBtCoexInfo()
  staging: rtl8723bs: Remove function rtw_btcoex_GetDBG()
  staging: rtl8723bs: Remove function rtw_btcoex_SetDBG()
  staging: rtl8723bs: Remove rtw_btcoex_IsBTCoexCtrlAMPDUSize()
  staging: rtl8723bs: Remove rtw_btcoex_BtInfoNotify()
  staging: rtl8723bs: Remove rtw_btcoex_ScanNotify()
  staging: rtl8723bs: Remove rtw_btcoex_SetSingleAntPath()
  staging: rtl8723bs: Remove rtw_btcoex_SetPGAntNum()
  staging: rtl8192e: remove redundant initialization of rtstatus
  staging: rtl8723bs: Remove rtw_btcoex_GetRaMask()
  staging: rtl8723bs: Remove rtw_btcoex_SetChipType()
  staging: rtl8723bs: Remove rtw_btcoex_ConnectNotify()
  staging: rtl8723bs: Remove rtw_btcoex_SetBTCoexist()
  staging: rtl8723bs: Remove rtw_btcoex_IsBtDisabled()
  staging: rtl8723bs: Remove rtw_btcoex_IsBtControlLps()
  ...
2019-07-11 15:36:02 -07:00
Linus Torvalds
97ff4ca46d Char / Misc driver patches for 5.3-rc1
Here is the "large" pull request for char and misc and other assorted
 smaller driver subsystems for 5.3-rc1.
 
 It seems that this tree is becoming the funnel point of lots of smaller
 driver subsystems, which is fine for me, but that's why it is getting
 larger over time and does not just contain stuff under drivers/char/ and
 drivers/misc.
 
 Lots of small updates all over the place here from different driver
 subsystems:
   - habana driver updates
   - coresight driver updates
   - documentation file movements and updates
   - Android binder fixes and updates
   - extcon driver updates
   - google firmware driver updates
   - fsi driver updates
   - smaller misc and char driver updates
   - soundwire driver updates
   - nvmem driver updates
   - w1 driver fixes
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc driver updates from Greg KH:
 "Here is the "large" pull request for char and misc and other assorted
  smaller driver subsystems for 5.3-rc1.

  It seems that this tree is becoming the funnel point of lots of
  smaller driver subsystems, which is fine for me, but that's why it is
  getting larger over time and does not just contain stuff under
  drivers/char/ and drivers/misc.

  Lots of small updates all over the place here from different driver
  subsystems:
   - habana driver updates
   - coresight driver updates
   - documentation file movements and updates
   - Android binder fixes and updates
   - extcon driver updates
   - google firmware driver updates
   - fsi driver updates
   - smaller misc and char driver updates
   - soundwire driver updates
   - nvmem driver updates
   - w1 driver fixes

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (188 commits)
  coresight: Do not default to CPU0 for missing CPU phandle
  dt-bindings: coresight: Change CPU phandle to required property
  ocxl: Allow contexts to be attached with a NULL mm
  fsi: sbefifo: Don't fail operations when in SBE IPL state
  coresight: tmc: Smatch: Fix potential NULL pointer dereference
  coresight: etm3x: Smatch: Fix potential NULL pointer dereference
  coresight: Potential uninitialized variable in probe()
  coresight: etb10: Do not call smp_processor_id from preemptible
  coresight: tmc-etf: Do not call smp_processor_id from preemptible
  coresight: tmc-etr: alloc_perf_buf: Do not call smp_processor_id from preemptible
  coresight: tmc-etr: Do not call smp_processor_id() from preemptible
  docs: misc-devices: convert files without extension to ReST
  fpga: dfl: fme: align PR buffer size per PR datawidth
  fpga: dfl: fme: remove copy_to_user() in ioctl for PR
  fpga: dfl-fme-mgr: fix FME_PR_INTFC_ID register address.
  intel_th: msu: Start read iterator from a non-empty window
  intel_th: msu: Split sgt array and pointer in multiwindow mode
  intel_th: msu: Support multipage blocks
  intel_th: pci: Add Ice Lake NNPI support
  intel_th: msu: Fix single mode with disabled IOMMU
  ...
2019-07-11 15:34:05 -07:00
Linus Torvalds
237f83dfbe Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Some highlights from this development cycle:

   1) Big refactoring of ipv6 route and neigh handling to support
      nexthop objects configurable as units from userspace. From David
      Ahern.

   2) Convert explored_states in BPF verifier into a hash table,
      significantly decreased state held for programs with bpf2bpf
      calls, from Alexei Starovoitov.

   3) Implement bpf_send_signal() helper, from Yonghong Song.

   4) Various classifier enhancements to mvpp2 driver, from Maxime
      Chevallier.

   5) Add aRFS support to hns3 driver, from Jian Shen.

   6) Fix use after free in inet frags by allocating fqdirs dynamically
      and reworking how rhashtable dismantle occurs, from Eric Dumazet.

   7) Add act_ctinfo packet classifier action, from Kevin
      Darbyshire-Bryant.

   8) Add TFO key backup infrastructure, from Jason Baron.

   9) Remove several old and unused ISDN drivers, from Arnd Bergmann.

  10) Add devlink notifications for flash update status to mlxsw driver,
      from Jiri Pirko.

  11) Lots of kTLS offload infrastructure fixes, from Jakub Kicinski.

  12) Add support for mv88e6250 DSA chips, from Rasmus Villemoes.

  13) Various enhancements to ipv6 flow label handling, from Eric
      Dumazet and Willem de Bruijn.

  14) Support TLS offload in nfp driver, from Jakub Kicinski, Dirk van
      der Merwe, and others.

  15) Various improvements to axienet driver including converting it to
      phylink, from Robert Hancock.

  16) Add PTP support to sja1105 DSA driver, from Vladimir Oltean.

  17) Add mqprio qdisc offload support to dpaa2-eth, from Ioana
      Radulescu.

  18) Add devlink health reporting to mlx5, from Moshe Shemesh.

  19) Convert stmmac over to phylink, from Jose Abreu.

  20) Add PTP PHC (Physical Hardware Clock) support to mlxsw, from
      Shalom Toledo.

  21) Add nftables SYNPROXY support, from Fernando Fernandez Mancera.

  22) Convert tcp_fastopen over to use SipHash, from Ard Biesheuvel.

  23) Track spill/fill of constants in BPF verifier, from Alexei
      Starovoitov.

  24) Support bounded loops in BPF, from Alexei Starovoitov.

  25) Various page_pool API fixes and improvements, from Jesper Dangaard
      Brouer.

  26) Just like ipv4, support ref-countless ipv6 route handling. From
      Wei Wang.

  27) Support VLAN offloading in aquantia driver, from Igor Russkikh.

  28) Add AF_XDP zero-copy support to mlx5, from Maxim Mikityanskiy.

  29) Add flower GRE encap/decap support to nfp driver, from Pieter
      Jansen van Vuuren.

  30) Protect against stack overflow when using act_mirred, from John
      Hurley.

  31) Allow devmap map lookups from eBPF, from Toke Høiland-Jørgensen.

  32) Use page_pool API in netsec driver, Ilias Apalodimas.

  33) Add Google gve network driver, from Catherine Sullivan.

  34) More indirect call avoidance, from Paolo Abeni.

  35) Add kTLS TX HW offload support to mlx5, from Tariq Toukan.

  36) Add XDP_REDIRECT support to bnxt_en, from Andy Gospodarek.

  37) Add MPLS manipulation actions to TC, from John Hurley.

  38) Add sending a packet to connection tracking from TC actions, and
      then allow flower classifier matching on conntrack state. From
      Paul Blakey.

  39) Netfilter hw offload support, from Pablo Neira Ayuso"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2080 commits)
  net/mlx5e: Return in default case statement in tx_post_resync_params
  mlx5: Return -EINVAL when WARN_ON_ONCE triggers in mlx5e_tls_resync().
  net: dsa: add support for BRIDGE_MROUTER attribute
  pkt_sched: Include const.h
  net: netsec: remove static declaration for netsec_set_tx_de()
  net: netsec: remove superfluous if statement
  netfilter: nf_tables: add hardware offload support
  net: flow_offload: rename tc_cls_flower_offload to flow_cls_offload
  net: flow_offload: add flow_block_cb_is_busy() and use it
  net: sched: remove tcf block API
  drivers: net: use flow block API
  net: sched: use flow block API
  net: flow_offload: add flow_block_cb_{priv, incref, decref}()
  net: flow_offload: add list handling functions
  net: flow_offload: add flow_block_cb_alloc() and flow_block_cb_free()
  net: flow_offload: rename TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_*
  net: flow_offload: rename TC_BLOCK_{UN}BIND to FLOW_BLOCK_{UN}BIND
  net: flow_offload: add flow_block_cb_setup_simple()
  net: hisilicon: Add an tx_desc to adapt HI13X1_GMAC
  net: hisilicon: Add an rx_desc to adapt HI13X1_GMAC
  ...
2019-07-11 10:55:49 -07:00
Linus Torvalds
e9a83bd232 It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro.  These create more
    than the usual number of simple but annoying merge conflicts with other
    trees, unfortunately.  He has a lot more of these waiting on the wings
    that, I think, will go to you directly later on.
 
  - A new document on how to use merges and rebases in kernel repos, and one
    on Spectre vulnerabilities.
 
  - Various improvements to the build system, including automatic markup of
    function() references because some people, for reasons I will never
    understand, were of the opinion that :c:func:``function()`` is
    unattractive and not fun to type.
 
  - We now recommend using sphinx 1.7, but still support back to 1.4.
 
  - Lots of smaller improvements, warning fixes, typo fixes, etc.
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Merge tag 'docs-5.3' of git://git.lwn.net/linux

Pull Documentation updates from Jonathan Corbet:
 "It's been a relatively busy cycle for docs:

   - A fair pile of RST conversions, many from Mauro. These create more
     than the usual number of simple but annoying merge conflicts with
     other trees, unfortunately. He has a lot more of these waiting on
     the wings that, I think, will go to you directly later on.

   - A new document on how to use merges and rebases in kernel repos,
     and one on Spectre vulnerabilities.

   - Various improvements to the build system, including automatic
     markup of function() references because some people, for reasons I
     will never understand, were of the opinion that
     :c:func:``function()`` is unattractive and not fun to type.

   - We now recommend using sphinx 1.7, but still support back to 1.4.

   - Lots of smaller improvements, warning fixes, typo fixes, etc"

* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
  docs: automarkup.py: ignore exceptions when seeking for xrefs
  docs: Move binderfs to admin-guide
  Disable Sphinx SmartyPants in HTML output
  doc: RCU callback locks need only _bh, not necessarily _irq
  docs: format kernel-parameters -- as code
  Doc : doc-guide : Fix a typo
  platform: x86: get rid of a non-existent document
  Add the RCU docs to the core-api manual
  Documentation: RCU: Add TOC tree hooks
  Documentation: RCU: Rename txt files to rst
  Documentation: RCU: Convert RCU UP systems to reST
  Documentation: RCU: Convert RCU linked list to reST
  Documentation: RCU: Convert RCU basic concepts to reST
  docs: filesystems: Remove uneeded .rst extension on toctables
  scripts/sphinx-pre-install: fix out-of-tree build
  docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
  Documentation: PGP: update for newer HW devices
  Documentation: Add section about CPU vulnerabilities for Spectre
  Documentation: platform: Delete x86-laptop-drivers.txt
  docs: Note that :c:func: should no longer be used
  ...
2019-07-09 12:34:26 -07:00
Linus Torvalds
cf2d213e49 Power management updates for 5.3-rc1
- Improve the handling of shared ACPI power resources in the PCI
    bus type layer (Mika Westerberg).
 
  - Make the PCI layer take link delays required by the PCIe spec
    into account as appropriate and avoid polling devices in D3cold
    for PME (Mika Westerberg).
 
  - Fix some corner case issues in ACPI device power management and
    in the PCI bus type layer, optimiza and clean up the handling of
    runtime-suspended PCI devices during system-wide transitions to
    sleep states (Rafael Wysocki).
 
  - Rework hibernation handling in the ACPI core and the PCI bus type
    to resume runtime-suspended devices before hibernation (which
    allows some functional problems to be avoided) and fix some ACPI
    power management issues related to hiberation (Rafael Wysocki).
 
  - Extend the operating performance points (OPP) framework to support
    a wider range of devices (Rajendra Nayak, Stehpen Boyd).
 
  - Fix issues related to genpd_virt_devs and issues with platforms
    using the set_opp() callback in the OPP framework (Viresh Kumar,
    Dmitry Osipenko).
 
  - Add new cpufreq driver for Raspberry Pi (Nicolas Saenz Julienne).
 
  - Add new cpufreq driver for imx8m and imx7d chips (Leonard Crestez).
 
  - Fix and clean up the pcc-cpufreq, brcmstb-avs-cpufreq, s5pv210,
    and armada-37xx cpufreq drivers (David Arcari, Florian Fainelli,
    Paweł Chmiel, YueHaibing).
 
  - Clean up and fix the cpufreq core (Viresh Kumar, Daniel Lezcano).
 
  - Fix minor issue in the ACPI system sleep support code and export
    one function from it (Lenny Szubowicz, Dexuan Cui).
 
  - Clean up assorted pieces of PM code and documentation (Kefeng Wang,
    Andy Shevchenko, Bart Van Assche, Greg Kroah-Hartman, Fuqian Huang,
    Geert Uytterhoeven, Mathieu Malaterre, Rafael Wysocki).
 
  - Update the pm-graph utility to v5.4 (Todd Brandt).
 
  - Fix and clean up the cpupower utility (Abhishek Goel, Nick Black).
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Merge tag 'pm-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These update PCI and ACPI power management (improved handling of ACPI
  power resources and PCIe link delays, fixes related to corner cases,
  hibernation handling rework), fix and extend the operating performance
  points (OPP) framework, add new cpufreq drivers for Raspberry Pi and
  imx8m chips, update some other cpufreq drivers, clean up assorted
  pieces of PM code and documentation and update tools.

  Specifics:

   - Improve the handling of shared ACPI power resources in the PCI bus
     type layer (Mika Westerberg).

   - Make the PCI layer take link delays required by the PCIe spec into
     account as appropriate and avoid polling devices in D3cold for PME
     (Mika Westerberg).

   - Fix some corner case issues in ACPI device power management and in
     the PCI bus type layer, optimiza and clean up the handling of
     runtime-suspended PCI devices during system-wide transitions to
     sleep states (Rafael Wysocki).

   - Rework hibernation handling in the ACPI core and the PCI bus type
     to resume runtime-suspended devices before hibernation (which
     allows some functional problems to be avoided) and fix some ACPI
     power management issues related to hiberation (Rafael Wysocki).

   - Extend the operating performance points (OPP) framework to support
     a wider range of devices (Rajendra Nayak, Stehpen Boyd).

   - Fix issues related to genpd_virt_devs and issues with platforms
     using the set_opp() callback in the OPP framework (Viresh Kumar,
     Dmitry Osipenko).

   - Add new cpufreq driver for Raspberry Pi (Nicolas Saenz Julienne).

   - Add new cpufreq driver for imx8m and imx7d chips (Leonard Crestez).

   - Fix and clean up the pcc-cpufreq, brcmstb-avs-cpufreq, s5pv210, and
     armada-37xx cpufreq drivers (David Arcari, Florian Fainelli, Paweł
     Chmiel, YueHaibing).

   - Clean up and fix the cpufreq core (Viresh Kumar, Daniel Lezcano).

   - Fix minor issue in the ACPI system sleep support code and export
     one function from it (Lenny Szubowicz, Dexuan Cui).

   - Clean up assorted pieces of PM code and documentation (Kefeng Wang,
     Andy Shevchenko, Bart Van Assche, Greg Kroah-Hartman, Fuqian Huang,
     Geert Uytterhoeven, Mathieu Malaterre, Rafael Wysocki).

   - Update the pm-graph utility to v5.4 (Todd Brandt).

   - Fix and clean up the cpupower utility (Abhishek Goel, Nick Black)"

* tag 'pm-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (57 commits)
  ACPI: PM: Make acpi_sleep_state_supported() non-static
  PM: sleep: Drop dev_pm_skip_next_resume_phases()
  ACPI: PM: Unexport acpi_device_get_power()
  Documentation: ABI: power: Add missing newline at end of file
  ACPI: PM: Drop unused function and function header
  ACPI: PM: Introduce "poweroff" callbacks for ACPI PM domain and LPSS
  ACPI: PM: Simplify and fix PM domain hibernation callbacks
  PCI: PM: Simplify bus-level hibernation callbacks
  PM: ACPI/PCI: Resume all devices during hibernation
  cpufreq: Avoid calling cpufreq_verify_current_freq() from handle_update()
  cpufreq: Consolidate cpufreq_update_current_freq() and __cpufreq_get()
  kernel: power: swap: use kzalloc() instead of kmalloc() followed by memset()
  cpufreq: Don't skip frequency validation for has_target() drivers
  PCI: PM/ACPI: Refresh all stale power state data in pci_pm_complete()
  PCI / ACPI: Add _PR0 dependent devices
  ACPI / PM: Introduce concept of a _PR0 dependent device
  PCI / ACPI: Use cached ACPI device state to get PCI device power state
  ACPI: PM: Allow transitions to D0 to occur in special cases
  ACPI: PM: Avoid evaluating _PS3 on transitions from D3hot to D3cold
  cpufreq: Use has_target() instead of !setpolicy
  ...
2019-07-09 10:05:22 -07:00
Linus Torvalds
ed63b9c873 media updates for v5.3-rc1
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Merge tag 'media/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - new Atmel microship ISC driver

 - coda has gained support for mpeg2 and mpeg4

 - cxusb gained support for analog TV

 - rockchip staging driver was split into two separate staging drivers

 - added a new staging driver for Allegro DVT video IP core

 - added a new staging driver for Amlogic Meson video decoder

 - lots of improvements and cleanups

* tag 'media/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (398 commits)
  media: allegro: use new v4l2_m2m_ioctl_try_encoder_cmd funcs
  media: doc-rst: Fix typos
  media: radio-raremono: change devm_k*alloc to k*alloc
  media: stv0297: fix frequency range limit
  media: rc: Prefer KEY_NUMERIC_* for number buttons on remotes
  media: dvb_frontend: split dvb_frontend_handle_ioctl function
  media: mceusb: disable "nonsensical irdata" messages
  media: rc: remove redundant dev_err message
  media: cec-notifier: add new notifier functions
  media: cec: add struct cec_connector_info support
  media: cec-notifier: rename variables, check kstrdup and n->conn_name
  media: MAINTAINERS: Add maintainers for Media Controller
  media: staging: media: tegra-vde: Defer dmabuf's unmapping
  media: staging: media: tegra-vde: Add IOMMU support
  media: hdpvr: fix locking and a missing msleep
  media: v4l2: Test type instead of cfg->type in v4l2_ctrl_new_custom()
  media: atmel: atmel-isc: fix i386 build error
  media: v4l2-ctrl: Move compound control initialization
  media: hantro: Use vb2_get_buffer
  media: pci: cx88: Change the type of 'missed' to u64
  ...
2019-07-09 09:47:22 -07:00
Linus Torvalds
6b04014f3f IOMMU Updates for Linux v5.3
Including:
 
 	- Patches to make the dma-iommu code more generic so that it can
 	  be used outside of the ARM context with other IOMMU drivers.
 	  Goal is to make use of it on x86 too.
 
 	- Generic IOMMU domain support for the Intel VT-d driver. This
 	  driver now makes more use of common IOMMU code to allocate
 	  default domains for the devices it handles.
 
 	- An IOMMU fault reporting API to userspace. With that the IOMMU
 	  fault handling can be done in user-space, for example to
 	  forward the faults to a VM.
 
 	- Better handling for reserved regions requested by the
 	  firmware. These can be 'relaxed' now, meaning that those don't
 	  prevent a device being attached to a VM.
 
 	- Suspend/Resume support for the Renesas IOMMU driver.
 
 	- Added support for dumping SVA related fields of the DMAR table
 	  in the Intel VT-d driver via debugfs.
 
 	- A pile of smaller fixes and cleanups.
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Merge tag 'iommu-updates-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:

 - Make the dma-iommu code more generic so that it can be used outside
   of the ARM context with other IOMMU drivers. Goal is to make use of
   it on x86 too.

 - Generic IOMMU domain support for the Intel VT-d driver. This driver
   now makes more use of common IOMMU code to allocate default domains
   for the devices it handles.

 - An IOMMU fault reporting API to userspace. With that the IOMMU fault
   handling can be done in user-space, for example to forward the faults
   to a VM.

 - Better handling for reserved regions requested by the firmware. These
   can be 'relaxed' now, meaning that those don't prevent a device being
   attached to a VM.

 - Suspend/Resume support for the Renesas IOMMU driver.

 - Added support for dumping SVA related fields of the DMAR table in the
   Intel VT-d driver via debugfs.

 - A pile of smaller fixes and cleanups.

* tag 'iommu-updates-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (90 commits)
  iommu/omap: No need to check return value of debugfs_create functions
  iommu/arm-smmu-v3: Invalidate ATC when detaching a device
  iommu/arm-smmu-v3: Fix compilation when CONFIG_CMA=n
  iommu/vt-d: Cleanup unused variable
  iommu/amd: Flush not present cache in iommu_map_page
  iommu/amd: Only free resources once on init error
  iommu/amd: Move gart fallback to amd_iommu_init
  iommu/amd: Make iommu_disable safer
  iommu/io-pgtable: Support non-coherent page tables
  iommu/io-pgtable: Replace IO_PGTABLE_QUIRK_NO_DMA with specific flag
  iommu/io-pgtable-arm: Add support to use system cache
  iommu/arm-smmu-v3: Increase maximum size of queues
  iommu/vt-d: Silence a variable set but not used
  iommu/vt-d: Remove an unused variable "length"
  iommu: Fix integer truncation
  iommu: Add padding to struct iommu_fault
  iommu/vt-d: Consolidate domain_init() to avoid duplication
  iommu/vt-d: Cleanup after delegating DMA domain to generic iommu
  iommu/vt-d: Fix suspicious RCU usage in probe_acpi_namespace_devices()
  iommu/vt-d: Allow DMA domain attaching to rmrr locked device
  ...
2019-07-09 09:21:02 -07:00
Linus Torvalds
8b68150883 Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity updates from Mimi Zohar:
 "Bug fixes, code clean up, and new features:

   - IMA policy rules can be defined in terms of LSM labels, making the
     IMA policy dependent on LSM policy label changes, in particular LSM
     label deletions. The new environment, in which IMA-appraisal is
     being used, frequently updates the LSM policy and permits LSM label
     deletions.

   - Prevent an mmap'ed shared file opened for write from also being
     mmap'ed execute. In the long term, making this and other similar
     changes at the VFS layer would be preferable.

   - The IMA per policy rule template format support is needed for a
     couple of new/proposed features (eg. kexec boot command line
     measurement, appended signatures, and VFS provided file hashes).

   - Other than the "boot-aggregate" record in the IMA measuremeent
     list, all other measurements are of file data. Measuring and
     storing the kexec boot command line in the IMA measurement list is
     the first buffer based measurement included in the measurement
     list"

* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  integrity: Introduce struct evm_xattr
  ima: Update MAX_TEMPLATE_NAME_LEN to fit largest reasonable definition
  KEXEC: Call ima_kexec_cmdline to measure the boot command line args
  IMA: Define a new template field buf
  IMA: Define a new hook to measure the kexec boot command line arguments
  IMA: support for per policy rule template formats
  integrity: Fix __integrity_init_keyring() section mismatch
  ima: Use designated initializers for struct ima_event_data
  ima: use the lsm policy update notifier
  LSM: switch to blocking policy update notifiers
  x86/ima: fix the Kconfig dependency for IMA_ARCH_POLICY
  ima: Make arch_policy_entry static
  ima: prevent a file already mmap'ed write to be mmap'ed execute
  x86/ima: check EFI SetupMode too
2019-07-08 20:28:59 -07:00
Linus Torvalds
13324c42c1 Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 CPU feature updates from Thomas Gleixner:
 "Updates for x86 CPU features:

   - Support for UMWAIT/UMONITOR, which allows to use MWAIT and MONITOR
     instructions in user space to save power e.g. in HPC workloads
     which spin wait on synchronization points.

     The maximum time a MWAIT can halt in userspace is controlled by the
     kernel and can be adjusted by the sysadmin.

   - Speed up the MTRR handling code on CPUs which support cache
     self-snooping correctly.

     On those CPUs the wbinvd() invocations can be omitted which speeds
     up the MTRR setup by a factor of 50.

   - Support for the new x86 vendor Zhaoxin who develops processors
     based on the VIA Centaur technology.

   - Prevent 'cat /proc/cpuinfo' from affecting isolated NOHZ_FULL CPUs
     by sending IPIs to retrieve the CPU frequency and use the cached
     values instead.

   - The addition and late revert of the FSGSBASE support. The revert
     was required as it turned out that the code still has hard to
     diagnose issues. Yet another engineering trainwreck...

   - Small fixes, cleanups, improvements and the usual new Intel CPU
     family/model addons"

* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
  x86/fsgsbase: Revert FSGSBASE support
  selftests/x86/fsgsbase: Fix some test case bugs
  x86/entry/64: Fix and clean up paranoid_exit
  x86/entry/64: Don't compile ignore_sysret if 32-bit emulation is enabled
  selftests/x86: Test SYSCALL and SYSENTER manually with TF set
  x86/mtrr: Skip cache flushes on CPUs with cache self-snooping
  x86/cpu/intel: Clear cache self-snoop capability in CPUs with known errata
  Documentation/ABI: Document umwait control sysfs interfaces
  x86/umwait: Add sysfs interface to control umwait maximum time
  x86/umwait: Add sysfs interface to control umwait C0.2 state
  x86/umwait: Initialize umwait control values
  x86/cpufeatures: Enumerate user wait instructions
  x86/cpu: Disable frequency requests via aperfmperf IPI for nohz_full CPUs
  x86/acpi/cstate: Add Zhaoxin processors support for cache flush policy in C3
  ACPI, x86: Add Zhaoxin processors support for NONSTOP TSC
  x86/cpu: Create Zhaoxin processors architecture support file
  x86/cpu: Split Tremont based Atoms from the rest
  Documentation/x86/64: Add documentation for GS/FS addressing mode
  x86/elf: Enumerate kernel FSGSBASE capability in AT_HWCAP2
  x86/cpu: Enable FSGSBASE on 64bit by default and add a chicken bit
  ...
2019-07-08 11:59:59 -07:00
Linus Torvalds
1758feddb0 s390 updates for the 5.3 merge window
- Improve stop_machine wait logic: replace cpu_relax_yield call in generic
    stop_machine function with a weak stop_machine_yield function. This is
    overridden on s390, which yields the current cpu to the neighbouring cpu
    after a couple of retries, instead of blindly giving up the cpu to the
    hipervisor. This significantly improves stop_machine performance on s390 in
    overcommitted scenarios.
    This includes common code changes which have been Acked by Peter Zijlstra
    and Thomas Gleixner.
 
  - Improve jump label transformation speed: transform jump labels without
    using stop_machine.
 
  - Refactoring of the vfio-ccw cp handling, simplifying the code and
    avoiding unneeded allocating/copying.
 
  - Various vfio-ccw fixes (ccw translation, state machine).
 
  - Add support for vfio-ap queue interrupt control in the guest.
    This includes s390 kvm changes which have been Acked by Christian
    Borntraeger.
 
  - Add protected virtualization support for virtio-ccw.
 
  - Enforce both CONFIG_SMP and CONFIG_HOTPLUG_CPU, which allows to remove some
    code which most likely isn't working at all, besides that s390 didn't even
    compile for !CONFIG_SMP.
 
  - Support for special flagged EP11 CPRBs for zcrypt.
 
  - Handle PCI devices with no support for new MIO instructions.
 
  - Avoid KASAN false positives in reworked stack unwinder.
 
  - Couple of fixes for the QDIO layer.
 
  - Convert s390 specific documentation to ReST format.
 
  - Let s390 crypto modules return -ENODEV instead of -EOPNOTSUPP if hardware is
    missing. This way our modules behave like most other modules and which is
    also what systemd's systemd-modules-load.service expects.
 
  - Replace defconfig with performance_defconfig, so there is one config file
    less to maintain.
 
  - Remove the SCLP call home device driver, which was never useful.
 
  - Cleanups all over the place.
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Merge tag 's390-5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Improve stop_machine wait logic: replace cpu_relax_yield call in
   generic stop_machine function with a weak stop_machine_yield
   function. This is overridden on s390, which yields the current cpu to
   the neighbouring cpu after a couple of retries, instead of blindly
   giving up the cpu to the hipervisor. This significantly improves
   stop_machine performance on s390 in overcommitted scenarios.

   This includes common code changes which have been Acked by Peter
   Zijlstra and Thomas Gleixner.

 - Improve jump label transformation speed: transform jump labels
   without using stop_machine.

 - Refactoring of the vfio-ccw cp handling, simplifying the code and
   avoiding unneeded allocating/copying.

 - Various vfio-ccw fixes (ccw translation, state machine).

 - Add support for vfio-ap queue interrupt control in the guest. This
   includes s390 kvm changes which have been Acked by Christian
   Borntraeger.

 - Add protected virtualization support for virtio-ccw.

 - Enforce both CONFIG_SMP and CONFIG_HOTPLUG_CPU, which allows to
   remove some code which most likely isn't working at all, besides that
   s390 didn't even compile for !CONFIG_SMP.

 - Support for special flagged EP11 CPRBs for zcrypt.

 - Handle PCI devices with no support for new MIO instructions.

 - Avoid KASAN false positives in reworked stack unwinder.

 - Couple of fixes for the QDIO layer.

 - Convert s390 specific documentation to ReST format.

 - Let s390 crypto modules return -ENODEV instead of -EOPNOTSUPP if
   hardware is missing. This way our modules behave like most other
   modules and which is also what systemd's systemd-modules-load.service
   expects.

 - Replace defconfig with performance_defconfig, so there is one config
   file less to maintain.

 - Remove the SCLP call home device driver, which was never useful.

 - Cleanups all over the place.

* tag 's390-5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (83 commits)
  docs: s390: s390dbf: typos and formatting, update crash command
  docs: s390: unify and update s390dbf kdocs at debug.c
  docs: s390: restore important non-kdoc parts of s390dbf.rst
  vfio-ccw: Fix the conversion of Format-0 CCWs to Format-1
  s390/pci: correctly handle MIO opt-out
  s390/pci: deal with devices that have no support for MIO instructions
  s390: ap: kvm: Enable PQAP/AQIC facility for the guest
  s390: ap: implement PAPQ AQIC interception in kernel
  vfio: ap: register IOMMU VFIO notifier
  s390: ap: kvm: add PQAP interception for AQIC
  s390/unwind: cleanup unused READ_ONCE_TASK_STACK
  s390/kasan: avoid false positives during stack unwind
  s390/qdio: don't touch the dsci in tiqdio_add_input_queues()
  s390/qdio: (re-)initialize tiqdio list entries
  s390/dasd: Fix a precision vs width bug in dasd_feature_list()
  s390/cio: introduce driver_override on the css bus
  vfio-ccw: make convert_ccw0_to_ccw1 static
  vfio-ccw: Remove copy_ccw_from_iova()
  vfio-ccw: Factor out the ccw0-to-ccw1 transition
  vfio-ccw: Copy CCW data outside length calculation
  ...
2019-07-08 10:06:12 -07:00
Nick Crews
3f57fe28f8 power_supply: wilco_ec: Add charging config driver
Add a driver to control the charging algorithm used on Wilco
devices. See Documentation/ABI/testing/sysfs-class-power-wilco
for the userspace interface and other info.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-07-05 00:54:36 +02:00
Joerg Roedel
d95c388586 Merge branches 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/omap', 'generic-dma-ops' and 'core' into next 2019-07-04 17:26:48 +02:00
Vadim Pasternak
ba07e3aacc Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
Add documentation for the new attributes for exposing reset causes for
the next type of resets: caused by different watchdog, BIOS reload,
ASIC reset request.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-07-03 15:37:33 +03:00
Geert Uytterhoeven
5004efbb36 Documentation: ABI: power: Add missing newline at end of file
"git diff" says:

    \ No newline at end of file

after modifying the files.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-03 13:21:32 +02:00
Cornelia Huck
ebc3d17915 s390/cio: introduce driver_override on the css bus
Sometimes, we want to control which of the matching drivers
binds to a subchannel device (e.g. for subchannels we want to
handle via vfio-ccw).

For pci devices, a mechanism to do so has been introduced in
782a985d7a ("PCI: Introduce new device binding path using
pci_dev.driver_override"). It makes sense to introduce the
driver_override attribute for subchannel devices as well, so
that we can easily extend the 'driverctl' tool (which makes
use of the driver_override attribute for pci).

Note that unlike pci we still require a driver override to
match the subchannel type; matching more than one subchannel
type is probably not useful anyway.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-07-02 16:00:26 +02:00
Tomer Tayar
06deb86a74 habanalabs: Add debugfs node for engines status
Command submissions sent to the device are composed of command buffers
which are targeted to different device engines, like DMA and compute
entities. When a command submission gets stuck, knowing in which engine
the stuck is, is crucial for debugging.
This patch adds a debugfs node that exports this information, by
displaying the engines' various registers that assemble their idle/busy
status.
The information retrieval is based on the is_device_idle ASIC function.
The printout in this function, of the first detected busy engine, is
removed because it becomes redundant in the presence of the more
elaborated info of the new debugfs node.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2019-07-01 13:59:45 +00:00
Evan Green
8c3166e17c mfd / platform: cros_ec_debugfs: Expose resume result via debugfs
For ECs that support it, the EC returns the number of slp_s0
transitions and whether or not there was a timeout in the resume
response. Expose the last resume result to usermode via debugfs so
that usermode can detect and report S0ix timeouts.

Signed-off-by: Evan Green <evgreen@chromium.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-07-01 15:39:11 +02:00
Greg Kroah-Hartman
c55cc97a25 Second set of IIO device support, features, cleanups and minor fixes for 5.3.
A few bits for the counters subsystem mixed in here as well.
 There are some late breaking fixes as well, which aren't so urgent
 they can't wait for the merge window.
 
 New Device Support
 * adf4371
   - New driver + bindings.
   - Support the adf4372 PLL. Mostly ID and bindings.
 * ad8366 (note includes rework of driver needed to allow support for these).
   - Support the ADL5240 variable gain amplifier (VGA).
   - Support the ADA4961 digital gain amplifier (DGA).
 * dps310
   - New driver, in several parts from different authors for this temp
     and pressure sensor.
   - Includes errata workaround for a temperature reading issue.
 * stk3310
   - Support the stk3335, mostly ID.
 
 Features and cleanups
 * core
   - drop error handling on debugfs registration.
   - harden by making sure we don't overrun iio_chan_info_postfix.
 * docs
   - convert remaining docs to rst. At somepoint we'll fit these few
     into the main IIO docs.
   - improve sampling_frequency_available docs but explaining the
     range form.
 * ad_sigma_delta
   - Drop a pointless goto.
 * ad2s1210
   - Drop pointless platform data null check seeing as we don't actually
     use platform data anymore.
 * ad7124
   - Relax limitation on channel numbers to allow pseudo different channels.
   - Support control of whether the input is buffered via DT.
   - Use dynamic allocation for channel configuration to make it easier
     to support new devices.
   - YAML binding conversion.
 * ad7150
   - Comment tidy up.
   - Consistent and simple if (ret) handling of i2c errors.
   - FIELD_GET and GENMASK.
   - Ternary rather than !!(condition) for readability.
   - Use macros to avoid repetition of channel definitions.
 * ad7606
   - Add software channel config (rather that pin controlled)
   - Refactor to simplify addition of new part in future.
 * ad7746
   - of_deivce_id table.
 * ad7780
   - MAINTAINERS entry
   - YAML DT bindings.
 * ad8366
   - Stop using core mlock in favour of well scoped local lock.
   - SPDX + copyright date update.
 * ad9834
   - of_device_id table
 * adf4371
   - Add support for output stage muting before lock on has occured.
 * adis library
   - MAINTAINERS entry to reflect that this now Alexandru's problem ;)
 * adis162xx:
   - Fix a slightly incorrect set of comments and print statements on
     minimum supported voltage.
 * adis16203
   - of_device_id table.
 * adis16240
   - Add of_device_id table (in two parts as first patch only used it for
     MODULE_DEVICE_TABLE.)
 * adt7316-spi
   - of_device_id table
 * adxl372
   - YAML DT binding conversion.
   - Cleanup use of buffer callback functions (precursor to core rework).
 * bh1710
   - Simplify getting the i2c adapter from the client.
 * dht11
   - Mote to newer GPIO consumer interface.
 * kxcjk-1013.c
   - Add binding for sensor in display of some ultrabooks after userspace
     tools updated for it not be a problem to report two similar sensors.
 * imx7d
   - drop unused variables.
   - white space
   - define instead of variable for clock frequency that is fixed.
   - drop pointless error message.
 * messon_saradc
   - SPDX
 * sps30
   - MAINTAINERS entry
   - YAML binding conversion.
 * st_accel
   - Tidy up ordering in various buffer related callbacks. This is
     part of a long running effort to simplify the core code.
 * stm32-dfsdm:
   - Manage the resolution cleanly in triggerd modes.
   - Add fast mode support which allows more flexible filter choices.
   - Add a comment on the reason for a 16 bit record when technically
     not 'required'.
 * st_lsm6dsx
   - Embed device name in the sensor_settings struct as i3c doesn't
     have a convenient name field to use for this.
 * xilinx-adc
   - Relax constraints on supported platforms to reflect that this
     can used with FPGAs on PCIe cards and hence many architectures.
 * counters/ftm-quaddec
   - Fix some formatting io MODULE_AUTHOR
   - MAINTAINERS entry
 
 Fixes
 * tools
   - fix incorrect handling of 32 bit channels.
 * sca3000
   - Potential endian bug that is unlikely to bite anyone (be64 host
     seems unlikely for this old part).
 * stm32-adc
   - Add vdda-supply. On some boards it needs to be turned on to supply
     the ADC.  DT bindings included.
 * stm32-dfsdm
   - Fix output resolution to work with filter orders other than 3.
   - Fix output datatype as it's signed and previously claimed not to be.
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Merge tag 'iio-for-5.3b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of IIO device support, features, cleanups and minor fixes for 5.3.

A few bits for the counters subsystem mixed in here as well.
There are some late breaking fixes as well, which aren't so urgent
they can't wait for the merge window.

New Device Support
* adf4371
  - New driver + bindings.
  - Support the adf4372 PLL. Mostly ID and bindings.
* ad8366 (note includes rework of driver needed to allow support for these).
  - Support the ADL5240 variable gain amplifier (VGA).
  - Support the ADA4961 digital gain amplifier (DGA).
* dps310
  - New driver, in several parts from different authors for this temp
    and pressure sensor.
  - Includes errata workaround for a temperature reading issue.
* stk3310
  - Support the stk3335, mostly ID.

Features and cleanups
* core
  - drop error handling on debugfs registration.
  - harden by making sure we don't overrun iio_chan_info_postfix.
* docs
  - convert remaining docs to rst. At somepoint we'll fit these few
    into the main IIO docs.
  - improve sampling_frequency_available docs but explaining the
    range form.
* ad_sigma_delta
  - Drop a pointless goto.
* ad2s1210
  - Drop pointless platform data null check seeing as we don't actually
    use platform data anymore.
* ad7124
  - Relax limitation on channel numbers to allow pseudo different channels.
  - Support control of whether the input is buffered via DT.
  - Use dynamic allocation for channel configuration to make it easier
    to support new devices.
  - YAML binding conversion.
* ad7150
  - Comment tidy up.
  - Consistent and simple if (ret) handling of i2c errors.
  - FIELD_GET and GENMASK.
  - Ternary rather than !!(condition) for readability.
  - Use macros to avoid repetition of channel definitions.
* ad7606
  - Add software channel config (rather that pin controlled)
  - Refactor to simplify addition of new part in future.
* ad7746
  - of_deivce_id table.
* ad7780
  - MAINTAINERS entry
  - YAML DT bindings.
* ad8366
  - Stop using core mlock in favour of well scoped local lock.
  - SPDX + copyright date update.
* ad9834
  - of_device_id table
* adf4371
  - Add support for output stage muting before lock on has occured.
* adis library
  - MAINTAINERS entry to reflect that this now Alexandru's problem ;)
* adis162xx:
  - Fix a slightly incorrect set of comments and print statements on
    minimum supported voltage.
* adis16203
  - of_device_id table.
* adis16240
  - Add of_device_id table (in two parts as first patch only used it for
    MODULE_DEVICE_TABLE.)
* adt7316-spi
  - of_device_id table
* adxl372
  - YAML DT binding conversion.
  - Cleanup use of buffer callback functions (precursor to core rework).
* bh1710
  - Simplify getting the i2c adapter from the client.
* dht11
  - Mote to newer GPIO consumer interface.
* kxcjk-1013.c
  - Add binding for sensor in display of some ultrabooks after userspace
    tools updated for it not be a problem to report two similar sensors.
* imx7d
  - drop unused variables.
  - white space
  - define instead of variable for clock frequency that is fixed.
  - drop pointless error message.
* messon_saradc
  - SPDX
* sps30
  - MAINTAINERS entry
  - YAML binding conversion.
* st_accel
  - Tidy up ordering in various buffer related callbacks. This is
    part of a long running effort to simplify the core code.
* stm32-dfsdm:
  - Manage the resolution cleanly in triggerd modes.
  - Add fast mode support which allows more flexible filter choices.
  - Add a comment on the reason for a 16 bit record when technically
    not 'required'.
* st_lsm6dsx
  - Embed device name in the sensor_settings struct as i3c doesn't
    have a convenient name field to use for this.
* xilinx-adc
  - Relax constraints on supported platforms to reflect that this
    can used with FPGAs on PCIe cards and hence many architectures.
* counters/ftm-quaddec
  - Fix some formatting io MODULE_AUTHOR
  - MAINTAINERS entry

Fixes
* tools
  - fix incorrect handling of 32 bit channels.
* sca3000
  - Potential endian bug that is unlikely to bite anyone (be64 host
    seems unlikely for this old part).
* stm32-adc
  - Add vdda-supply. On some boards it needs to be turned on to supply
    the ADC.  DT bindings included.
* stm32-dfsdm
  - Fix output resolution to work with filter orders other than 3.
  - Fix output datatype as it's signed and previously claimed not to be.

* tag 'iio-for-5.3b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (68 commits)
  iio: iio-utils: Fix possible incorrect mask calculation
  iio: frequency: adf4371: Add support for output stage mute
  dt-bindings: iio: frequency: Add ADF4372 PLL documentation
  iio: frequency: adf4371: Add support for ADF4372 PLL
  dt-bindings: iio: adc: Add buffered input property
  Convert AD7124 bindings documentation to YAML format.
  iio: adc: ad7124: Shift to dynamic allocation for channel configuration
  iio: adc: ad7124: Add buffered input support
  iio: adc: ad7124: Remove input number limitation
  MAINTAINERS: add ADIS IMU driver library entry
  iio: adis162xx: fix low-power docs & reports
  counter/ftm-quaddec: Add missing '>' in MODULE_AUTHOR
  iio: core: no need to check return value of debugfs_create functions
  docs: iio: convert to ReST
  iio: adc: stm32-adc: add missing vdda-supply
  dt-bindings: iio: adc: stm32: add missing vdda supply
  iio: adc: stm32-dfsdm: add comment for 16 bits record
  iio: adc: stm32-dfsdm: add fast mode support
  iio: adc: stm32-dfsdm: manage data resolution in trigger mode
  iio: adc: stm32-dfsdm: fix data type
  ...
2019-07-01 10:58:13 +02:00
Jason Gunthorpe
371bb62158 Linux 5.2-rc6
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Merge tag 'v5.2-rc6' into rdma.git for-next

For dependencies in next patches.

Resolve conflicts:
- Use uverbs_get_cleared_udata() with new cq allocation flow
- Continue to delete nes despite SPDX conflict
- Resolve list appends in mlx5_command_str()
- Use u16 for vport_rule stuff
- Resolve list appends in struct ib_client

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-28 21:18:23 -03:00
Enric Balletbo i Serra
a4496d52b3 power: supply: add input power and voltage limit properties
For thermal management strategy you might be interested on limit the
input power for a power supply. We already have current limit but
basically what we probably want is to limit power. So, introduce the
input_power_limit property.

Although the common use case is limit the input power, in some
specific cases it is the voltage that is problematic (i.e some regulators
have different efficiencies at higher voltage resulting in more heat).
So introduce also the input_voltage_limit property.

This happens in one Chromebook and is used on the Pixel C's thermal
management strategy to effectively limit the input power to 5V 3A when
the screen is on. When the screen is on, the display, the CPU, and the GPU
all contribute more heat to the system than while the screen is off, and
we made a tradeoff to throttle the charger in order to give more of the
thermal budget to those other components.

So there's nothing fundamentally broken about the hardware that would
cause the Pixel C to malfunction if we were charging at 9V or 12V instead
of 5V when the screen is on, i.e. if userspace doesn't change this.

What would happen is that you wouldn't meet Google's skin temperature
targets on the system if the charger was allowed to run at 9V or 12V with
the screen on.

For folks hacking on Pixel Cs (which is now outside of Google's official
support window for Android) and customizing their own kernel and userspace
this would be acceptable, but we wanted to expose this feature in the
power supply properties because the feature does exist in the Emedded
Controller firmware of the Pixel C and all of Google's Chromebooks with
USB-C made since 2015 in case someone running an up to date kernel wanted
to limit the charging power for thermal or other reasons.

This patch exposes a new property, similar to input current limit, to
re-configure the maximum voltage from the external supply at runtime
based on system-level knowledge or user input.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-06-28 17:28:27 +02:00
Prakhar Srivastava
b0935123a1 IMA: Define a new hook to measure the kexec boot command line arguments
Currently during soft reboot(kexec_file_load) boot command line
arguments are not measured. Define hooks needed to measure kexec
command line arguments during soft reboot(kexec_file_load).

- A new ima hook ima_kexec_cmdline is defined to be called by the
kexec code.
- A new function process_buffer_measurement is defined to measure
the buffer hash into the IMA measurement list.
- A new func policy KEXEC_CMDLINE is defined to control the
 measurement.

Signed-off-by: Prakhar Srivastava <prsriva02@gmail.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2019-06-24 08:29:57 -04:00
Fenghua Yu
203dffacf5 Documentation/ABI: Document umwait control sysfs interfaces
Since two new sysfs interface files are created for umwait control, add
an ABI document entry for the files:

   /sys/devices/system/cpu/umwait_control/enable_c02
   /sys/devices/system/cpu/umwait_control/max_time

[ tglx: Made the write value instructions readable ]

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ashok Raj <ashok.raj@intel.com>
Cc: "Borislav Petkov" <bp@alien8.de>
Cc: "H Peter Anvin" <hpa@zytor.com>
Cc: "Andy Lutomirski" <luto@kernel.org>
Cc: "Peter Zijlstra" <peterz@infradead.org>
Cc: "Tony Luck" <tony.luck@intel.com>
Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com>
Link: https://lkml.kernel.org/r/1560994438-235698-6-git-send-email-fenghua.yu@intel.com
2019-06-24 01:44:35 +02:00
Greg Kroah-Hartman
90b45399b4 Merge 5.2-rc6 into staging-next
We want the fixes and this resolves a merge issue as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-23 13:29:03 +02:00
David S. Miller
92ad6325cb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor SPDX change conflict.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-22 08:59:24 -04:00
Wolfram Sang
05af076570 i2c: mux: demux-pinctrl: use proper email address for ABI requests
Use my commercial address, not my community one.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
[Removed a misplaced newline. /Peter]
Signed-off-by: Peter Rosin <peda@axentia.se>
2019-06-22 07:35:24 +02:00
Linus Torvalds
b7b8a44f3a Char/Misc driver fixes for 5.2-rc6
Here are a number of small driver fixes for 5.2-rc6
 
 Nothing major, just fixes for reported issues:
   - soundwire fixes
   - thunderbolt fixes
   - MAINTAINERS update for fpga maintainer change
   - binder bugfix
   - habanalabs 64bit pointer fix
   - documentation updates
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are a number of small driver fixes for 5.2-rc6

  Nothing major, just fixes for reported issues:
   - soundwire fixes
   - thunderbolt fixes
   - MAINTAINERS update for fpga maintainer change
   - binder bugfix
   - habanalabs 64bit pointer fix
   - documentation updates

  All of these have been in linux-next with no reported issues"

* tag 'char-misc-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  habanalabs: use u64_to_user_ptr() for reading user pointers
  doc: fix documentation about UIO_MEM_LOGICAL using
  MAINTAINERS / Documentation: Thorsten Scherer is the successor of Gavin Schenk
  docs: fb: Add TER16x32 to the available font names
  MAINTAINERS: fpga: hand off maintainership to Moritz
  thunderbolt: Implement CIO reset correctly for Titan Ridge
  binder: fix possible UAF when freeing buffer
  thunderbolt: Make sure device runtime resume completes before taking domain lock
  soundwire: intel: set dai min and max channels correctly
  soundwire: stream: fix bad unlock balance
  soundwire: stream: fix out of boundary access on port properties
2019-06-21 10:18:16 -07:00
Mauro Carvalho Chehab
4056e79faa ABI: sysfs-driver-mlxreg-io: fix the what fields
The author of this file should be given an award for creativity:
the What: fields on this file technically fulfills the description
at README. Yet, the way it is, it can't be parsed on a script,
and if someone would try to do something like:

	grep hwmon*/jtag_enable

It wouldn't find anything.

Fix the What fields in a way that it can be parseable by a
script and other search tools.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-21 17:06:35 +02:00
Matthew Garrett
19453ce0bc IMA: support for per policy rule template formats
Admins may wish to log different measurements using different IMA
templates. Add support for overriding the default template on a per-rule
basis.

Inspired-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Matthew Garrett <mjg59@google.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2019-06-19 18:51:01 -04:00
Gavin Schenk
75d7627f49 MAINTAINERS / Documentation: Thorsten Scherer is the successor of Gavin Schenk
Due to new challenges in my life I can no longer take care of SIOX.
Thorsten takes over my SIOX tasks.

Signed-off-by: Gavin Schenk <g.schenk@eckelmann.de>
Acked-by: Thorsten Scherer <t.scherer@eckelmann.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 19:31:21 +02:00
Enric Balletbo i Serra
1fbc6ec2f3 platform/chrome: cros_ec_debugfs: Add debugfs ABI documentation
Add the missing ABI documentation for the already available debugfs
entries: console_log, panicinfo and pdinfo.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-18 10:07:54 +02:00
Tim Wawrzynczak
e90716a661 platform/chrome: cros_ec_debugfs: Add debugfs entry to retrieve EC uptime
The new debugfs entry 'uptime' is being made available to userspace so that
a userspace daemon can synchronize EC logs with host time.

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
[rework based on Tim's first approach]
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2019-06-18 10:07:13 +02:00
David S. Miller
13091aa305 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Honestly all the conflicts were simple overlapping changes,
nothing really interesting to report.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-17 20:20:36 -07:00
Stefan Popa
7f699bd149 iio: frequency: adf4371: Add support for ADF4371 PLL
The ADF4371 is a frequency synthesizer with an integrated voltage
controlled oscillator (VCO) for phase-locked loops (PLLs). The ADF4371
has an integrated VCO with a fundamental output frequency ranging from
4000 MHz to 8000 MHz. In addition, the VCO frequency is connected to
divide by 1, 2, 4, 8, 16, 32, or 64 circuits that allows the user to
generate radio frequency (RF) output frequencies as low as 62.5 MHz at
RF8x. A frequency multiplier at RF16x generates from 8 GHz to 16 GHz. A
frequency quadrupler generates frequencies from 16 GHz to 32 GHz at RF32x.
RFAUX8x duplicates the frequency range of RF8x or permits direct access to
the VCO output.

The driver takes the reference input frequency from the device tree and
uses it to calculate and maximize the PFD frequency (frequency of the phase
frequency detector). The PFD frequency is further used to calculate the
timeouts: synthesizer lock, VCO band selection, automatic level
calibration (ALC) and PLL settling time.

This initial driver exposes the attributes for setting the frequency and
enabling/disabling the different adf4371 channels.

Datasheet:
Link: https://www.analog.com/media/en/technical-documentation/data-sheets/adf4371.pdf

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17 21:06:45 +01:00
Yurii Pavlovskyi
b096f626a6 platform/x86: asus-wmi: Switch fan boost mode
The WMI exposes a write-only device ID where up to three fan modes can be
switched on some laptops (TUF Gaming FX505GM). There is a hotkey
combination Fn-F5 that does have a fan icon, which is designed to toggle
between fan modes. The DSTS of the device ID returns information about the
presence of this capability and the presence of each of the two additional
fan modes as a bitmask (0x01 - overboost present, 0x02 - silent present)
[1].

Add a SysFS entry that reads the last written value and updates value in
WMI on write and a hotkey handler that toggles the modes taking into
account their availability according to DSTS.

Modes:
* 0x00 - normal or balanced,
* 0x01 - overboost, increased fan RPM,
* 0x02 - silent, decreased fan RPM

[1] Link: https://lkml.org/lkml/2019/4/12/110

Signed-off-by: Yurii Pavlovskyi <yurii.pavlovskyi@gmail.com>
Suggested-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-06-17 15:22:47 +03:00
Tomer Tayar
4a0ce7764b habanalabs: Allow accessing host mapped addresses via debugfs
Allows using the addr/data32 debugfs nodes to access a device VA of a
host mapped memory when the IOMMU is disabled.

Due to the possible large amount of a user host mapped memory, the
driver doesn't maintain a database with the host addresses per device VA.
When the IOMMU is disabled, this missing info is being overcome by
simply using phys_to_virt(). However, this is not useful when the IOMMU
is enabled, and thus the enforced limitation.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2019-06-16 13:48:29 +00:00
Mauro Carvalho Chehab
129fb4cb3b ABI: Fix KernelVersion tags
It is "KernelVersion:" and not "Kernel Version:".

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-15 08:12:45 +02:00
Mauro Carvalho Chehab
abf313b5a8 ABI: sysfs-bus-pci-devices-aer_stats uses an invalid tag
According with Documentation/ABI/, the right tag to describe
an ABI symbol is "What:", and not "Where:".

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-15 08:12:45 +02:00
Reinhard Speyerer
36815b416f qmi_wwan: extend permitted QMAP mux_id value range
Permit mux_id values up to 254 to be used in qmimux_register_device()
for compatibility with ip(8) and the rmnet driver.

Fixes: c6adf77953 ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-14 19:05:58 -07:00
Mauro Carvalho Chehab
151f4e2bdc docs: power: convert docs to ReST and rename to *.rst
Convert the PM documents to ReST, in order to allow them to
build with Sphinx.

The conversion is actually:
  - add blank lines and indentation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Srivatsa S. Bhat (VMware) <srivatsa@csail.mit.edu>
2019-06-14 16:08:36 -05:00
Mauro Carvalho Chehab
d6a3b24762 docs: scheduler: convert docs to ReST and rename to *.rst
In order to prepare to add them to the Kernel API book,
convert the files to ReST format.

The conversion is actually:
  - add blank lines and identation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-14 14:32:18 -06:00
Jonathan Corbet
8afecfb0ec Linux 5.2-rc4
-----BEGIN PGP SIGNATURE-----
 
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Merge tag 'v5.2-rc4' into mauro

We need to pick up post-rc1 changes to various document files so they don't
get lost in Mauro's massive RST conversion push.
2019-06-14 14:18:53 -06:00
Mauro Carvalho Chehab
1107049034 ABI: better identificate tables
When parsing via script, it is important to know if the script
should consider a description as a literal block that should
be displayed as-is, or if the description can be considered
as a normal text.

Change descriptions to ensure that the preceding line of a table
ends with a colon. That makes easy to identify the need of a
literal block.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-14 18:17:12 +02:00
Mauro Carvalho Chehab
d59f0ec715 ABI: sysfs-class-uwb_rc: remove a duplicated incomplete entry
There are two entries for /sys/class/uwb_rc/uwbN/<EUI-48>/BPST.
The second one has a missing description.

Get rid of it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-14 18:17:12 +02:00
Mauro Carvalho Chehab
745b2888a2 ABI: sysfs-driver-hid: the "What" field doesn't parse fine
The What: field on this ABI description use a different
syntax than expected, causing it to not be properly parsed
by script.

Fix it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-14 18:17:11 +02:00
Mauro Carvalho Chehab
ed66bcd067 ABI: fix some syntax issues at the ABI database
On those three files, the ABI representation described at
README are violated.

- at sysfs-bus-iio-proximity-as3935:
	a ':' character is missing after "What"

- at sysfs-class-devfreq:
	there's a typo at Description

- at sysfs-class-cxl, it is using the ":" character at a
	file preamble, causing it to be misinterpreted as a
	tag.

- On the other files, instead of "What", they use "Where".

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Andrew Donnellan <ajd@linux.ibm.com>  # cxl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-14 18:17:11 +02:00
Jason Gunthorpe
2d3c72ed50 rdma: Remove nes
This driver was first merged over 10 years ago and has not seen major
activity by the authors in the last 7 years. However, in that time it has
been patched 150 times to adapt it to changing kernel APIs.

Further, the hardware has several issues, like not supporting 64 bit DMA,
that make it rather uninteresting for use with modern systems and RDMA.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-13 09:59:49 -04:00
Eric Auger
adfd373820 iommu: Introduce IOMMU_RESV_DIRECT_RELAXABLE reserved memory regions
Introduce a new type for reserved region. This corresponds
to directly mapped regions which are known to be relaxable
in some specific conditions, such as device assignment use
case. Well known examples are those used by USB controllers
providing PS/2 keyboard emulation for pre-boot BIOS and
early BOOT or RMRRs associated to IGD working in legacy mode.

Since commit c875d2c1b8 ("iommu/vt-d: Exclude devices using RMRRs
from IOMMU API domains") and commit 18436afdc1 ("iommu/vt-d: Allow
RMRR on graphics devices too"), those regions are currently
considered "safe" with respect to device assignment use case
which requires a non direct mapping at IOMMU physical level
(RAM GPA -> HPA mapping).

Those RMRRs currently exist and sometimes the device is
attempting to access it but this has not been considered
an issue until now.

However at the moment, iommu_get_group_resv_regions() is
not able to make any difference between directly mapped
regions: those which must be absolutely enforced and those
like above ones which are known as relaxable.

This is a blocker for reporting severe conflicts between
non relaxable RMRRs (like MSI doorbells) and guest GPA space.

With this new reserved region type we will be able to use
iommu_get_group_resv_regions() to enumerate the IOVA space
that is usable through the IOMMU API without introducing
regressions with respect to existing device assignment
use cases (USB and IGD).

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-06-12 10:32:59 +02:00
Mauro Carvalho Chehab
5800571960 Linux 5.2-rc4
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Merge tag 'v5.2-rc4' into media/master

There are some conflicts due to SPDX changes. We also have more
patches being merged via media tree touching them.

So, let's merge back from upstream and address those.

Linux 5.2-rc4

* tag 'v5.2-rc4': (767 commits)
  Linux 5.2-rc4
  MAINTAINERS: Karthikeyan Ramasubramanian is MIA
  i2c: xiic: Add max_read_len quirk
  lockref: Limit number of cmpxchg loop retries
  uaccess: add noop untagged_addr definition
  x86/insn-eval: Fix use-after-free access to LDT entry
  kbuild: use more portable 'command -v' for cc-cross-prefix
  s390/unwind: correct stack switching during unwind
  block, bfq: add weight symlink to the bfq.weight cgroup parameter
  cgroup: let a symlink too be created with a cftype file
  drm/nouveau/secboot/gp10[2467]: support newer FW to fix SEC2 failures on some boards
  drm/nouveau/secboot: enable loading of versioned LS PMU/SEC2 ACR msgqueue FW
  drm/nouveau/secboot: split out FW version-specific LS function pointers
  drm/nouveau/secboot: pass max supported FW version to LS load funcs
  drm/nouveau/core: support versioned firmware loading
  drm/nouveau/core: pass subdev into nvkm_firmware_get, rather than device
  block: free sched's request pool in blk_cleanup_queue
  pktgen: do not sleep with the thread lock held.
  net: mvpp2: Use strscpy to handle stat strings
  net: rds: fix memory leak in rds_ib_flush_mr_pool
  ...

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-11 12:09:28 -04:00
Mauro Carvalho Chehab
671c30957e ABI: sysfs-devices-system-cpu: point to the right docs
The cpuidle doc was split on two, one at the admin guide
and another one at the driver API guide. Instead of pointing
to a non-existent file, point to both (admin guide being
the first one).

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-08 13:42:10 -06:00
Fabien Lahoudere
26207c7e78 docs: iio: add precision about sampling_frequency_available
The documentation give some exemple on what format can be expected
from sampling_frequency_available sysfs attribute

Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-08 12:33:36 +01:00
Hans Verkuil
6aace2f89f media: Documentation: update email address
Use hverkuil-cisco@xs4all.nl instead of hans.verkuil@cisco.com.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-05 15:58:09 -04:00
Raul E Rangel
79e3f1d3db platform/chrome: wilco_ec: Add version sysfs entries
Add the ability to extract version information from the EC.

Example Output:
$ cd /sys/bus/platform/devices/GOOG000C:00
$ tail build_date build_revision version model_number
==> build_date <==
04/25/19

==> build_revision <==
d2592cae0

==> version <==
00.00.14

==> model_number <==
08B6

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-06-05 17:28:42 +02:00
Daniel Rosenberg
4d3aed7090 f2fs: Add option to limit required GC for checkpoint=disable
This extends the checkpoint option to allow checkpoint=disable:%u[%]
This allows you to specify what how much of the disk you are willing
to lose access to while mounting with checkpoint=disable. If the amount
lost would be higher, the mount will return -EAGAIN. This can be given
as a percent of total space, or in blocks.

Currently, we need to run garbage collection until the amount of holes
is smaller than the OVP space. With the new option, f2fs can mark
space as unusable up front instead of requiring garbage collection until
the number of holes is small enough.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-06-03 13:27:48 -07:00
Greg Kroah-Hartman
23004ec330 Merge 5.2-rc3 into staging-next
We need the staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-03 07:27:16 +02:00
David S. Miller
b4b12b0d2f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The phylink conflict was between a bug fix by Russell King
to make sure we have a consistent PHY interface mode, and
a change in net-next to pull some code in phylink_resolve()
into the helper functions phylink_mac_link_{up,down}()

On the dp83867 side it's mostly overlapping changes, with
the 'net' side removing a condition that was supposed to
trigger for RGMII but because of how it was coded never
actually could trigger.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-31 10:49:43 -07:00
Ioana Ciornei
c920f745f4 net: phy: Add phy_standalone sysfs entry
Export a phy_standalone device attribute that is meant to give the
indication that this PHY lacks an attached_dev and its corresponding
sysfs link. The attribute will be created only when the
phy_attach_direct() function will be called with a NULL net_device.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-29 21:48:53 -07:00
Oded Gabbay
97a1aa00c1 docs/habanalabs: update text for some entries in sysfs
This patch updates the description of some entries in sysfs for the
habanalabs driver.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2019-06-06 15:13:10 +03:00
Florian Fainelli
a6cd0d2d49 Documentation: net-sysfs: Remove duplicate PHY device documentation
Both sysfs-bus-mdio and sysfs-class-net-phydev contain the same
duplication information. There is not currently any MDIO bus specific
attribute, but there are PHY device (struct phy_device) specific
attributes. Use the more precise description from sysfs-bus-mdio and
carry that over to sysfs-class-net-phydev.

Fixes: 86f22d04df ("net: sysfs: Document PHY device sysfs attributes")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-28 17:26:44 -07:00
Nick Crews
2ad1f7a914 platform/chrome: wilco_ec: Remove 256 byte transfers
The 0xF6 command, intended to send and receive 256 byte payloads to
and from the EC, is not needed. The 0xF5 command for 32 byte
payloads is sufficient. This patch removes support for the 0xF6
command and 256 byte payloads.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-05-20 10:18:10 +02:00
Nick Crews
4c1ca625c6 platform/chrome: wilco_ec: Add Boot on AC support
Boot on AC is a policy which makes the device boot from S5 when AC
power is connected. This is useful for users who want to run their
device headless or with a dock.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-05-20 10:18:09 +02:00
Greg Kroah-Hartman
c8b741e10b First set of new device support, features and cleanups for IIO in the 5.3 cycle
New device support
 * mt6577
   - add supprot for the mt6765 which requires a few minor additional
     new features in the driver.
 
 Yaml binding conversions
 * adxl345
 * isl29018
 * tsl2583
 * tsl2772
 
 Minor features and improvements
 * ad5758
   - declare an of_device_id table rather than just relying on the spi
     fallback which doesn't use the manufacturer id.
   - drop a set but not used variable left from previous refactor.
 * ad7816
   - Add a bit more description to kconfig text.
 * ad9523
   - change calculation order to improve frequency accuracy.
 * adxl372
   - declare an of_device_id table
 * adt7316
   - white space.
 * at91_adc
   - Use dev_get_drvdata directly rather than boucing to the platform device
     and back again.
 * cros_ec
   - add an id sysfs entry to bring in line with the other implementations.
 * ds5522
   - drop a check on the of_node existing as we don't actually use it for
     anything.
 * kxsd9
   - declare an of_device_id table.
 * maxim_thermocouple
   - declare an of_device_id table.
 * mt6577
   - add dt binding entry for mt8183 which is also supported.
 * rcar-gyroadc
   - tidy up unnecessary error messages.
 * stm32-dfsdm
   - improved error handling.
 * stmpe-adc
   - drop an unnecessary variable assignment.
   - add an of_device_id table.
   - reinit completion on begin converstion to avoid a path in which
     previous round had been interrupted, also switch to non interruptible
     wait to avoid an issue with a user program using -pg
   - simplify interrupt handling by just having them always enabled.
   - reset all interrupts on startup and in the timeout handler to
     avoid getting stuck.
 * sun4i-gpadc
   - SPDX
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Merge tag 'iio-for-5.3a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of new device support, features and cleanups for IIO in the 5.3 cycle

New device support
* mt6577
  - add supprot for the mt6765 which requires a few minor additional
    new features in the driver.

Yaml binding conversions
* adxl345
* isl29018
* tsl2583
* tsl2772

Minor features and improvements
* ad5758
  - declare an of_device_id table rather than just relying on the spi
    fallback which doesn't use the manufacturer id.
  - drop a set but not used variable left from previous refactor.
* ad7816
  - Add a bit more description to kconfig text.
* ad9523
  - change calculation order to improve frequency accuracy.
* adxl372
  - declare an of_device_id table
* adt7316
  - white space.
* at91_adc
  - Use dev_get_drvdata directly rather than boucing to the platform device
    and back again.
* cros_ec
  - add an id sysfs entry to bring in line with the other implementations.
* ds5522
  - drop a check on the of_node existing as we don't actually use it for
    anything.
* kxsd9
  - declare an of_device_id table.
* maxim_thermocouple
  - declare an of_device_id table.
* mt6577
  - add dt binding entry for mt8183 which is also supported.
* rcar-gyroadc
  - tidy up unnecessary error messages.
* stm32-dfsdm
  - improved error handling.
* stmpe-adc
  - drop an unnecessary variable assignment.
  - add an of_device_id table.
  - reinit completion on begin converstion to avoid a path in which
    previous round had been interrupted, also switch to non interruptible
    wait to avoid an issue with a user program using -pg
  - simplify interrupt handling by just having them always enabled.
  - reset all interrupts on startup and in the timeout handler to
    avoid getting stuck.
* sun4i-gpadc
  - SPDX

* tag 'iio-for-5.3a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (28 commits)
  iio: adc: mediatek: mt6577-auxadc, add mt6765 support
  dt-bindings: iio: adc: mediatek: Add document for mt6765
  dt-bindings: iio: accel: adxl345: switch to YAML bindings
  iio: adc: sun4i-gpadc-iio convert to SPDX license tags
  iio: ad9523-1: Improve reported VCO frequency accuracy
  iio: dac: ds4422/ds4424 drop of_node check
  iio: stmpe-adc: Reset possible interrupts
  iio: stmpe-adc: Use wait_for_completion_timeout
  iio: stmpe-adc: Enable all stmpe-adc interrupts just once
  iio: stmpe-adc: Reinit completion struct on begin conversion
  iio: stmpe-adc: Add compatible name
  iio: stmpe-adc: Remove unnecessary assignment
  staging: iio: adc: Add paragraph to describe Kconfig symbol
  staging: iio: adt7316: match parenthesis alignment
  iio: adc: rcar-gyroadc: Remove devm_iio_device_alloc() error printing
  dt-bindings: iio: isl29018: convert bindings to YAML format
  dt-bindings: adc: mt8183: add binding document
  iio: dac: ad5758: remove set but not used variable 'dc_dc_mode'
  iio: cros_ec: add 'id' sysfs entry
  iio: adc: stm32-dfsdm: missing error case during probe
  ...
2019-05-20 09:13:53 +02:00
Linus Torvalds
8649efb2f8 power supply and reset changes for the v5.2 series
Core:
  * Add over-current health state
  * Add standard, adaptive and custom charge types
  * Add new properties for start/end charge threshold
 
 New Drivers / Hardware:
  * UCS1002 Programmable USB Port Power Controller
  * Ingenic JZ47xx Battery Fuel Gauge
  * AXP20x USB Power: Add AXP813 support
  * AT91 poweroff: Add SAM9X60 support
  * OLPC battery: Add XO-1.5 and XO-1.75 support
 
 Misc. Changes:
  * syscon-reboot: support mask property
  * AXP288 fuel gauge: Blacklist ACEPC T8/T11
   - Looks like some vendor thought it's a good idea to
     build a desktop system with a fuel gauge, that slowly
     "discharges"...
  * cpcap-battery: Fix calculation errors
  * misc. fixes
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Merge tag 'for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Core:
   - Add over-current health state
   - Add standard, adaptive and custom charge types
   - Add new properties for start/end charge threshold

  New Drivers / Hardware:
   - UCS1002 Programmable USB Port Power Controller
   - Ingenic JZ47xx Battery Fuel Gauge
   - AXP20x USB Power: Add AXP813 support
   - AT91 poweroff: Add SAM9X60 support
   - OLPC battery: Add XO-1.5 and XO-1.75 support

  Misc Changes:
   - syscon-reboot: support mask property
   - AXP288 fuel gauge: Blacklist ACEPC T8/T11. Looks like some vendor
     thought it's a good idea to build a desktop system with a fuel
     gauge, that slowly "discharges"...
   - cpcap-battery: Fix calculation errors
   - misc fixes"

* tag 'for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (54 commits)
  power: supply: olpc_battery: force the le/be casts
  power: supply: ucs1002: Fix build error without CONFIG_REGULATOR
  power: supply: ucs1002: Fix wrong return value checking
  power: supply: Add driver for Microchip UCS1002
  dt-bindings: power: supply: Add bindings for Microchip UCS1002
  power: supply: core: Add POWER_SUPPLY_HEALTH_OVERCURRENT constant
  power: supply: core: fix clang -Wunsequenced
  power: supply: core: Add missing documentation for CHARGE_CONTROL_* properties
  power: supply: core: Add CHARGE_CONTROL_{START_THRESHOLD,END_THRESHOLD} properties
  power: supply: core: Add Standard, Adaptive, and Custom charge types
  power: supply: axp288_fuel_gauge: Add ACEPC T8 and T11 mini PCs to the blacklist
  power: supply: bq27xxx_battery: Notify also about status changes
  power: supply: olpc_battery: Have the framework register sysfs files for us
  power: supply: olpc_battery: Add OLPC XO 1.75 support
  power: supply: olpc_battery: Avoid using platform_info
  power: supply: olpc_battery: Use devm_power_supply_register()
  power: supply: olpc_battery: Move priv data to a struct
  power: supply: olpc_battery: Use DT to get battery version
  x86/platform/olpc: Use a correct version when making up a battery node
  x86/platform/olpc: Trivial code move in DT fixup
  ...
2019-05-15 18:50:40 -07:00
Linus Torvalds
fa4bff1650 Merge branch 'x86-mds-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 MDS mitigations from Thomas Gleixner:
 "Microarchitectural Data Sampling (MDS) is a hardware vulnerability
  which allows unprivileged speculative access to data which is
  available in various CPU internal buffers. This new set of misfeatures
  has the following CVEs assigned:

     CVE-2018-12126  MSBDS  Microarchitectural Store Buffer Data Sampling
     CVE-2018-12130  MFBDS  Microarchitectural Fill Buffer Data Sampling
     CVE-2018-12127  MLPDS  Microarchitectural Load Port Data Sampling
     CVE-2019-11091  MDSUM  Microarchitectural Data Sampling Uncacheable Memory

  MDS attacks target microarchitectural buffers which speculatively
  forward data under certain conditions. Disclosure gadgets can expose
  this data via cache side channels.

  Contrary to other speculation based vulnerabilities the MDS
  vulnerability does not allow the attacker to control the memory target
  address. As a consequence the attacks are purely sampling based, but
  as demonstrated with the TLBleed attack samples can be postprocessed
  successfully.

  The mitigation is to flush the microarchitectural buffers on return to
  user space and before entering a VM. It's bolted on the VERW
  instruction and requires a microcode update. As some of the attacks
  exploit data structures shared between hyperthreads, full protection
  requires to disable hyperthreading. The kernel does not do that by
  default to avoid breaking unattended updates.

  The mitigation set comes with documentation for administrators and a
  deeper technical view"

* 'x86-mds-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  x86/speculation/mds: Fix documentation typo
  Documentation: Correct the possible MDS sysfs values
  x86/mds: Add MDSUM variant to the MDS documentation
  x86/speculation/mds: Add 'mitigations=' support for MDS
  x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
  x86/speculation/mds: Fix comment
  x86/speculation/mds: Add SMT warning message
  x86/speculation: Move arch_smt_update() call to after mitigation decisions
  x86/speculation/mds: Add mds=full,nosmt cmdline option
  Documentation: Add MDS vulnerability documentation
  Documentation: Move L1TF to separate directory
  x86/speculation/mds: Add mitigation mode VMWERV
  x86/speculation/mds: Add sysfs reporting for MDS
  x86/speculation/mds: Add mitigation control for MDS
  x86/speculation/mds: Conditionally clear CPU buffers on idle entry
  x86/kvm/vmx: Add MDS protection when L1D Flush is not active
  x86/speculation/mds: Clear CPU buffers on exit to user
  x86/speculation/mds: Add mds_clear_cpu_buffers()
  x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
  x86/speculation/mds: Add BUG_MSBDS_ONLY
  ...
2019-05-14 07:57:29 -07:00
Linus Torvalds
47782361ac chrome platform changes for v5.2
CrOS EC:
 
 - Add EC host command support using rpmsg
 - Add new CrOS USB PD logging driver
 - Transfer spi messages at high priority
 - Add support to trace CrOS EC commands
 - Minor fixes and cleanups in protocol and debugfs
 
 Wilco EC:
 
 - Standardize Wilco EC mailbox interface
 - Add h1_gpio status to debugfs
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Merge tag 'tag-chrome-platform-for-v5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung:
 "CrOS EC:
   - Add EC host command support using rpmsg
   - Add new CrOS USB PD logging driver
   - Transfer spi messages at high priority
   - Add support to trace CrOS EC commands
   - Minor fixes and cleanups in protocol and debugfs

  Wilco EC:
   - Standardize Wilco EC mailbox interface
   - Add h1_gpio status to debugfs"

* tag 'tag-chrome-platform-for-v5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_ec_proto: Add trace event to trace EC commands
  platform/chrome: cros_ec_debugfs: Use cros_ec_cmd_xfer_status helper
  platform/chrome: cros_ec: Add EC host command support using rpmsg
  platform/chrome: wilco_ec: Add h1_gpio status to debugfs
  platform/chrome: wilco_ec: Standardize mailbox interface
  platform/chrome: cros_ec_proto: check for NULL transfer function
  platform/chrome: Add CrOS USB PD logging driver
  platform/chrome: cros_ec_spi: Transfer messages at high priority
  platform/chrome: cros_ec_debugfs: no need to check return value of debugfs_create functions
  platform/chrome: cros_ec_debugfs: Remove dev_warn when console log is not supported
2019-05-12 07:00:21 -04:00
Linus Torvalds
45182e4e1f Merge branch 'i2c/for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:

 - API for late atomic transfers (e.g. to shut down via PMIC). We have a
   seperate callback now which is called under clearly defined
   conditions. In-kernel users are converted, too.

 - new driver for the AMD PCIe MP2 I2C controller

 - large refactoring for at91 and bcm-iproc (both gain slave support due
   to this)

 - and a good share of various driver improvements anf fixes

* 'i2c/for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (57 commits)
  dt-bindings: i2c: riic: document r7s9210 support
  i2c: imx-lpi2c: Use __maybe_unused instead of #if CONFIG_PM_SLEEP
  i2c-piix4: Add Hygon Dhyana SMBus support
  i2c: core: apply 'is_suspended' check for SMBus, too
  i2c: core: ratelimit 'transfer when suspended' errors
  i2c: iproc: Change driver to use 'BIT' macro
  i2c: riic: Add Runtime PM support
  i2c: mux: demux-pinctrl: use struct_size() in devm_kzalloc()
  i2c: mux: pca954x: allow management of device idle state via sysfs
  i2c: mux: pca9541: remove support for unused platform data
  i2c: mux: pca954x: remove support for unused platform data
  dt-bindings: i2c: i2c-mtk: add support for MT8516
  i2c: axxia: use auto cmd for last message
  i2c: gpio: flag atomic capability if possible
  i2c: algo: bit: add flag to whitelist atomic transfers
  i2c: stu300: use xfer_atomic callback to bail out early
  i2c: ocores: enable atomic xfers
  i2c: ocores: refactor setup for polling
  i2c: tegra-bpmp: convert to use new atomic callbacks
  i2c: omap: Add the master_xfer_atomic hook
  ...
2019-05-09 14:41:55 -07:00
Linus Torvalds
8c79f4cd44 A reasonably busy cycle for docs, including:
- Lots of work on the Chinese and Italian translations
  - Some license-rules clarifications from Christoph
  - Various build-script fixes
  - A new document on memory models
  - RST conversion of the live-patching docs
  - The usual collection of typo fixes and corrections.
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Merge tag 'docs-5.2' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "A reasonably busy cycle for docs, including:

   - Lots of work on the Chinese and Italian translations

   - Some license-rules clarifications from Christoph

   - Various build-script fixes

   - A new document on memory models

   - RST conversion of the live-patching docs

   - The usual collection of typo fixes and corrections"

* tag 'docs-5.2' of git://git.lwn.net/linux: (140 commits)
  docs/livepatch: Unify style of livepatch documentation in the ReST format
  docs: livepatch: convert docs to ReST and rename to *.rst
  scripts/documentation-file-ref-check: detect broken :doc:`foo`
  scripts/documentation-file-ref-check: don't parse Next/ dir
  LICENSES: Rename other to deprecated
  LICENSES: Clearly mark dual license only licenses
  docs: Don't reference the ZLib license in license-rules.rst
  docs/vm: Minor editorial changes in the THP and hugetlbfs
  docs/vm: add documentation of memory models
  doc:it_IT: translation alignment
  doc: fix typo in PGP guide
  dontdiff: update with Kconfig build artifacts
  docs/zh_CN: fix typos in 1.Intro.rst file
  docs/zh_CN: redirect CoC docs to Chinese version
  doc: mm: migration doesn't use FOLL_SPLIT anymore
  docs: doc-guide: remove the extension from .rst files
  doc: kselftest: Fix KBUILD_OUTPUT usage instructions
  docs: trace: fix some Sphinx warnings
  docs: speculation.txt: mark example blocks as such
  docs: ntb.txt: add blank lines to clean up some Sphinx warnings
  ...
2019-05-08 12:42:50 -07:00
Linus Torvalds
85c1a25494 Some minor cleanups for the IPMI driver.
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Merge tag 'for-linus-5.2' of git://github.com/cminyard/linux-ipmi

Pull IPMI updates from Corey Minyard:
 "Some minor cleanups for the IPMI driver"

* tag 'for-linus-5.2' of git://github.com/cminyard/linux-ipmi:
  ipmi: Remove warning if no slave address is present
  ipmi:ssif: Only unregister the platform driver if it was registered
  ipmi:ssif: compare block number correctly for multi-part return messages
  ipmi: Add the i2c-addr property for SSIF interfaces
  char/ipmi: fix spelling mistake "receieved_messages" -> "received_messages"
  ipmi: avoid atomic_inc in exit function
  ipmi: Remove file from ipmi_file_private
  ipmi_si: remove an unused variable in try_smi_init()
  ipmi: Make ipmi_interfaces_srcu variable static
2019-05-08 10:34:17 -07:00
Linus Torvalds
132d68d37d USB/PHY patches for 5.2-rc1
Here is the big set of USB and PHY driver patches for 5.2-rc1
 
 There is the usual set of:
 	- USB gadget updates
 	- PHY driver updates and additions
 	- USB serial driver updates and fixes
 	- typec updates and new chips supported
 	- mtu3 driver updates
 	- xhci driver updates
 	- other tiny driver updates
 
 Nothing really interesting, just constant forward progress.
 
 All of these have been in linux-next for a while with no reported
 issues.  The usb-gadget and usb-serial trees were merged a bit "late",
 but both of them had been in linux-next before they got merged here last
 Friday.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big set of USB and PHY driver patches for 5.2-rc1

  There is the usual set of:

   - USB gadget updates

   - PHY driver updates and additions

   - USB serial driver updates and fixes

   - typec updates and new chips supported

   - mtu3 driver updates

   - xhci driver updates

   - other tiny driver updates

  Nothing really interesting, just constant forward progress.

  All of these have been in linux-next for a while with no reported
  issues. The usb-gadget and usb-serial trees were merged a bit "late",
  but both of them had been in linux-next before they got merged here
  last Friday"

* tag 'usb-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (206 commits)
  USB: serial: f81232: implement break control
  USB: serial: f81232: add high baud rate support
  USB: serial: f81232: clear overrun flag
  USB: serial: f81232: fix interrupt worker not stop
  usb: dwc3: Rename DWC3_DCTL_LPM_ERRATA
  usb: dwc3: Fix default lpm_nyet_threshold value
  usb: dwc3: debug: Print GET_STATUS(device) tracepoint
  usb: dwc3: Do core validation early on probe
  usb: dwc3: gadget: Set lpm_capable
  usb: gadget: atmel: tie wake lock to running clock
  usb: gadget: atmel: support USB suspend
  usb: gadget: atmel_usba_udc: simplify setting of interrupt-enabled mask
  dwc2: gadget: Fix completed transfer size calculation in DDMA
  usb: dwc2: Set lpm mode parameters depend on HW configuration
  usb: dwc2: Fix channel disable flow
  usb: dwc2: Set actual frame number for completed ISOC transfer
  usb: gadget: do not use __constant_cpu_to_le16
  usb: dwc2: gadget: Increase descriptors count for ISOC's
  usb: introduce usb_ep_type_string() function
  usb: dwc3: move synchronize_irq() out of the spinlock protected block
  ...
2019-05-08 10:03:52 -07:00
Linus Torvalds
80f232121b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Highlights:

   1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.

   2) Add fib_sync_mem to control the amount of dirty memory we allow to
      queue up between synchronize RCU calls, from David Ahern.

   3) Make flow classifier more lockless, from Vlad Buslov.

   4) Add PHY downshift support to aquantia driver, from Heiner
      Kallweit.

   5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
      contention on SLAB spinlocks in heavy RPC workloads.

   6) Partial GSO offload support in XFRM, from Boris Pismenny.

   7) Add fast link down support to ethtool, from Heiner Kallweit.

   8) Use siphash for IP ID generator, from Eric Dumazet.

   9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
      entries, from David Ahern.

  10) Move skb->xmit_more into a per-cpu variable, from Florian
      Westphal.

  11) Improve eBPF verifier speed and increase maximum program size,
      from Alexei Starovoitov.

  12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
      spinlocks. From Neil Brown.

  13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.

  14) Improve link partner cap detection in generic PHY code, from
      Heiner Kallweit.

  15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
      Maguire.

  16) Remove SKB list implementation assumptions in SCTP, your's truly.

  17) Various cleanups, optimizations, and simplifications in r8169
      driver. From Heiner Kallweit.

  18) Add memory accounting on TX and RX path of SCTP, from Xin Long.

  19) Switch PHY drivers over to use dynamic featue detection, from
      Heiner Kallweit.

  20) Support flow steering without masking in dpaa2-eth, from Ioana
      Ciocoi.

  21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
      Pirko.

  22) Increase the strict parsing of current and future netlink
      attributes, also export such policies to userspace. From Johannes
      Berg.

  23) Allow DSA tag drivers to be modular, from Andrew Lunn.

  24) Remove legacy DSA probing support, also from Andrew Lunn.

  25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
      Haabendal.

  26) Add a generic tracepoint for TX queue timeouts to ease debugging,
      from Cong Wang.

  27) More indirect call optimizations, from Paolo Abeni"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
  cxgb4: Fix error path in cxgb4_init_module
  net: phy: improve pause mode reporting in phy_print_status
  dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
  net: macb: Change interrupt and napi enable order in open
  net: ll_temac: Improve error message on error IRQ
  net/sched: remove block pointer from common offload structure
  net: ethernet: support of_get_mac_address new ERR_PTR error
  net: usb: smsc: fix warning reported by kbuild test robot
  staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
  net: dsa: support of_get_mac_address new ERR_PTR error
  net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
  vrf: sit mtu should not be updated when vrf netdev is the link
  net: dsa: Fix error cleanup path in dsa_init_module
  l2tp: Fix possible NULL pointer dereference
  taprio: add null check on sched_nest to avoid potential null pointer dereference
  net: mvpp2: cls: fix less than zero check on a u32 variable
  net_sched: sch_fq: handle non connected flows
  net_sched: sch_fq: do not assume EDT packets are ordered
  net: hns3: use devm_kcalloc when allocating desc_cb
  net: hns3: some cleanup for struct hns3_enet_ring
  ...
2019-05-07 22:03:58 -07:00
Mauro Carvalho Chehab
89e33ea732 docs: livepatch: convert docs to ReST and rename to *.rst
Convert livepatch documentation to ReST format. The changes
are mostly trivial, as the documents are already on a good
shape. Just a few markup changes are needed for Sphinx to
properly parse the docs.

The conversion is actually:
  - add blank lines and identation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - The in-file TOC becomes a comment, in order to skip it from the
    output, as Sphinx already generates an index there.
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-07 16:05:49 -06:00
Linus Torvalds
f678d6da74 Char/Misc patches for 5.2-rc1 - part 2
Here is the "real" big set of char/misc driver patches for 5.2-rc1
 
 Loads of different driver subsystem stuff in here, all over the places:
   - thunderbolt driver updates
   - habanalabs driver updates
   - nvmem driver updates
   - extcon driver updates
   - intel_th driver updates
   - mei driver updates
   - coresight driver updates
   - soundwire driver cleanups and updates
   - fastrpc driver updates
   - other minor driver updates
   - chardev minor fixups
 
 Feels like this tree is getting to be a dumping ground of "small driver
 subsystems" these days.  Which is fine with me, if it makes things
 easier for those subsystem maintainers.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.2-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc update part 2 from Greg KH:
 "Here is the "real" big set of char/misc driver patches for 5.2-rc1

  Loads of different driver subsystem stuff in here, all over the places:
   - thunderbolt driver updates
   - habanalabs driver updates
   - nvmem driver updates
   - extcon driver updates
   - intel_th driver updates
   - mei driver updates
   - coresight driver updates
   - soundwire driver cleanups and updates
   - fastrpc driver updates
   - other minor driver updates
   - chardev minor fixups

  Feels like this tree is getting to be a dumping ground of "small
  driver subsystems" these days. Which is fine with me, if it makes
  things easier for those subsystem maintainers.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.2-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
  intel_th: msu: Add current window tracking
  intel_th: msu: Add a sysfs attribute to trigger window switch
  intel_th: msu: Correct the block wrap detection
  intel_th: Add switch triggering support
  intel_th: gth: Factor out trace start/stop
  intel_th: msu: Factor out pipeline draining
  intel_th: msu: Switch over to scatterlist
  intel_th: msu: Replace open-coded list_{first,last,next}_entry variants
  intel_th: Only report useful IRQs to subdevices
  intel_th: msu: Start handling IRQs
  intel_th: pci: Use MSI interrupt signalling
  intel_th: Communicate IRQ via resource
  intel_th: Add "rtit" source device
  intel_th: Skip subdevices if their MMIO is missing
  intel_th: Rework resource passing between glue layers and core
  intel_th: SPDX-ify the documentation
  intel_th: msu: Fix single mode with IOMMU
  coresight: funnel: Support static funnel
  dt-bindings: arm: coresight: Unify funnel DT binding
  coresight: replicator: Add new device id for static replicator
  ...
2019-05-07 13:39:22 -07:00
Linus Torvalds
2310673c3c Char/Misc patches for 5.2-rc1 - part 1
This is the first pull request for the char/misc driver tree for 5.2-rc1
 
 This contains only a small number of bugfixes that would have gone to
 you for 5.1-rc8 if that had happened, but instead I let them sit in
 linux-next for an extra week just "to be sure".
 
 The "big" patch here is for hyper-v, fixing a bug in their sysfs files
 that could cause big problems.  The others are all small fixes,
 resolving reported issues that showed up in 5.1-rcs, plus some odd
 'static' cleanups for the phy drivers that really should have waited for
 -rc1.  Most of these are tagged for the stable trees, so 5.1 will pick
 them up.
 
 All of these have been in linux-next for a while, with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.2-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc update part 1 from Greg KH:
 "This contains only a small number of bugfixes that would have gone to
  you for 5.1-rc8 if that had happened, but instead I let them sit in
  linux-next for an extra week just "to be sure".

  The "big" patch here is for hyper-v, fixing a bug in their sysfs files
  that could cause big problems. The others are all small fixes,
  resolving reported issues that showed up in 5.1-rcs, plus some odd
  'static' cleanups for the phy drivers that really should have waited
  for -rc1. Most of these are tagged for the stable trees, so 5.1 will
  pick them up.

  All of these have been in linux-next for a while, with no reported
  issues"

* tag 'char-misc-5.2-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc: rtsx: Fixed rts5260 power saving parameter and sd glitch
  binder: take read mode of mmap_sem in binder_alloc_free_page()
  intel_th: pci: Add Comet Lake support
  stm class: Fix channel bitmap on 32-bit systems
  stm class: Fix channel free in stm output free path
  phy: sun4i-usb: Make sure to disable PHY0 passby for peripheral mode
  phy: fix platform_no_drv_owner.cocci warnings
  phy: mapphone-mdm6600: add gpiolib dependency
  phy: ti: usb2: fix OMAP_CONTROL_PHY dependency
  phy: allwinner: allow compile testing
  phy: qcom-ufs: Make ufs_qcom_phy_disable_iface_clk static
  phy: rockchip-typec: Make usb3_pll_cfg and dp_pll_cfg static
  phy: phy-twl4030-usb: Fix cable state handling
  Drivers: hv: vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup()
  Drivers: hv: vmbus: Fix race condition with new ring_buffer_info mutex
  Drivers: hv: vmbus: Set ring_info field to 0 and remove memset
  Drivers: hv: vmbus: Refactor chan->state if statement
  Drivers: hv: vmbus: Expose monitor data only when monitor pages are used
2019-05-07 13:33:31 -07:00
Linus Torvalds
e0dccbdf5a Staging / IIO driver patches for 5.2-rc1
Here is the big staging and iio driver update for 5.2-rc1.
 
 Lots of tiny fixes all over the staging and IIO driver trees here, along
 with some new IIO drivers.
 
 Also we ended up deleting two drivers, making this pull request remove a
 few hundred thousand lines of code, always a nice thing to see.  Both of
 the drivers removed have been replaced with "real" drivers in their
 various subsystem directories, and they will be coming to you from those
 locations during this merge window.
 
 There are some core vt/selection changes in here, that was due to some
 cleanups needed for the speakup fixes.  Those have all been acked by the
 various subsystem maintainers (i.e. me), so those are ok.
 
 We also added a few new drivers, for some odd hardware, giving new
 developers plenty to work on with basic coding style cleanups to come in
 the near future.
 
 Other than that, nothing unusual here.
 
 All of these have been in linux-next for a while with no reported
 issues, other than an odd gcc warning for one of the new drivers that
 should be fixed up soon.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / IIO driver updates from Greg KH:
 "Here is the big staging and iio driver update for 5.2-rc1.

  Lots of tiny fixes all over the staging and IIO driver trees here,
  along with some new IIO drivers.

  The "counter" subsystem was added in here as well, as it is needed by
  the IIO drivers and subsystem.

  Also we ended up deleting two drivers, making this pull request remove
  a few hundred thousand lines of code, always a nice thing to see. Both
  of the drivers removed have been replaced with "real" drivers in their
  various subsystem directories, and they will be coming to you from
  those locations during this merge window.

  There are some core vt/selection changes in here, that was due to some
  cleanups needed for the speakup fixes. Those have all been acked by
  the various subsystem maintainers (i.e. me), so those are ok.

  We also added a few new drivers, for some odd hardware, giving new
  developers plenty to work on with basic coding style cleanups to come
  in the near future.

  Other than that, nothing unusual here.

  All of these have been in linux-next for a while with no reported
  issues, other than an odd gcc warning for one of the new drivers that
  should be fixed up soon"

[ I fixed up the warning myself  - Linus ]

* tag 'staging-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (663 commits)
  staging: kpc2000: kpc_spi: Fix build error for {read,write}q
  Staging: rtl8192e: Remove extra space before break statement
  Staging: rtl8192u: ieee80211: Fix if-else indentation warning
  Staging: rtl8192u: ieee80211: Fix indentation errors by removing extra spaces
  staging: most: cdev: fix chrdev_region leak in mod_exit
  staging: wlan-ng: Fix improper SPDX comment style
  staging: rtl8192u: ieee80211: Resolve ERROR reported by checkpatch
  staging: vc04_services: bcm2835-camera: Compress two lines into one line
  staging: rtl8723bs: core: Use !x in place of NULL comparison.
  staging: rtl8723bs: core: Prefer using the BIT Macro.
  staging: fieldbus: anybus-s: fix wait_for_completion_timeout return handling
  staging: kpc2000: fix up build problems with readq()
  staging: rtlwifi: move remaining phydm .h files
  staging: rtlwifi: strip down phydm .h files
  staging: rtlwifi: delete the staging driver
  staging: fieldbus: anybus-s: rename bus id field to avoid confusion
  staging: fieldbus: anybus-s: keep device bus id in bus endianness
  Staging: sm750fb: Change *array into *const array
  staging: rtl8192u: ieee80211: Fix spelling mistake
  staging: rtl8192u: ieee80211: Replace bit shifting with BIT macro
  ...
2019-05-07 13:31:29 -07:00
Linus Torvalds
cf482a49af Driver core/kobject patches for 5.2-rc1
Here is the "big" set of driver core patches for 5.2-rc1
 
 There are a number of ACPI patches in here as well, as Rafael said they
 should go through this tree due to the driver core changes they
 required.  They have all been acked by the ACPI developers.
 
 There are also a number of small subsystem-specific changes in here, due
 to some changes to the kobject core code.  Those too have all been acked
 by the various subsystem maintainers.
 
 As for content, it's pretty boring outside of the ACPI changes:
   - spdx cleanups
   - kobject documentation updates
   - default attribute groups for kobjects
   - other minor kobject/driver core fixes
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core/kobject updates from Greg KH:
 "Here is the "big" set of driver core patches for 5.2-rc1

  There are a number of ACPI patches in here as well, as Rafael said
  they should go through this tree due to the driver core changes they
  required. They have all been acked by the ACPI developers.

  There are also a number of small subsystem-specific changes in here,
  due to some changes to the kobject core code. Those too have all been
  acked by the various subsystem maintainers.

  As for content, it's pretty boring outside of the ACPI changes:
   - spdx cleanups
   - kobject documentation updates
   - default attribute groups for kobjects
   - other minor kobject/driver core fixes

  All have been in linux-next for a while with no reported issues"

* tag 'driver-core-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (47 commits)
  kobject: clean up the kobject add documentation a bit more
  kobject: Fix kernel-doc comment first line
  kobject: Remove docstring reference to kset
  firmware_loader: Fix a typo ("syfs" -> "sysfs")
  kobject: fix dereference before null check on kobj
  Revert "driver core: platform: Fix the usage of platform device name(pdev->name)"
  init/config: Do not select BUILD_BIN2C for IKCONFIG
  Provide in-kernel headers to make extending kernel easier
  kobject: Improve doc clarity kobject_init_and_add()
  kobject: Improve docs for kobject_add/del
  driver core: platform: Fix the usage of platform device name(pdev->name)
  livepatch: Replace klp_ktype_patch's default_attrs with groups
  cpufreq: schedutil: Replace default_attrs field with groups
  padata: Replace padata_attr_type default_attrs field with groups
  irqdesc: Replace irq_kobj_type's default_attrs field with groups
  net-sysfs: Replace ktype default_attrs field with groups
  block: Replace all ktype default_attrs with groups
  samples/kobject: Replace foo_ktype's default_attrs field with groups
  kobject: Add support for default attribute groups to kobj_type
  driver core: Postpone DMA tear-down until after devres release for probe failure
  ...
2019-05-07 13:01:40 -07:00
Linus Torvalds
8f5e823f91 Power management updates for 5.2-rc1
- Fix the handling of Performance and Energy Bias Hint (EPB) on
    Intel processors and expose it to user space via sysfs to avoid
    having to access it through the generic MSR I/F (Rafael Wysocki).
 
  - Improve the handling of global turbo changes made by the platform
    firmware in the intel_pstate driver (Rafael Wysocki).
 
  - Convert some slow-path static_cpu_has() callers to boot_cpu_has()
    in cpufreq (Borislav Petkov).
 
  - Fix the frequency calculation loop in the armada-37xx cpufreq
    driver (Gregory CLEMENT).
 
  - Fix possible object reference leaks in multuple cpufreq drivers
    (Wen Yang).
 
  - Fix kerneldoc comment in the centrino cpufreq driver (dongjian).
 
  - Clean up the ACPI and maple cpufreq drivers (Viresh Kumar, Mohan
    Kumar).
 
  - Add support for lx2160a and ls1028a to the qoriq cpufreq driver
    (Vabhav Sharma, Yuantian Tang).
 
  - Fix kobject memory leak in the cpufreq core (Viresh Kumar).
 
  - Simplify the IOwait boosting in the schedutil cpufreq governor
    and rework the TSC cpufreq notifier on x86 (Rafael Wysocki).
 
  - Clean up the cpufreq core and statistics code (Yue Hu, Kyle Lin).
 
  - Improve the cpufreq documentation, add SPDX license tags to
    some PM documentation files and unify copyright notices in
    them (Rafael Wysocki).
 
  - Add support for "CPU" domains to the generic power domains (genpd)
    framework and provide low-level PSCI firmware support for that
    feature (Ulf Hansson).
 
  - Rearrange the PSCI firmware support code and add support for
    SYSTEM_RESET2 to it (Ulf Hansson, Sudeep Holla).
 
  - Improve genpd support for devices in multiple power domains (Ulf
    Hansson).
 
  - Unify target residency for the AFTR and coupled AFTR states in the
    exynos cpuidle driver (Marek Szyprowski).
 
  - Introduce new helper routine in the operating performance points
    (OPP) framework (Andrew-sh.Cheng).
 
  - Add support for passing on-die termination (ODT) and auto power
    down parameters from the kernel to Trusted Firmware-A (TF-A) to
    the rk3399_dmc devfreq driver (Enric Balletbo i Serra).
 
  - Add tracing to devfreq (Lukasz Luba).
 
  - Make the exynos-bus devfreq driver suspend all devices on system
    shutdown (Marek Szyprowski).
 
  - Fix a few minor issues in the devfreq subsystem and clean it up
    somewhat (Enric Balletbo i Serra, MyungJoo Ham, Rob Herring,
    Saravana Kannan, Yangtao Li).
 
  - Improve system wakeup diagnostics (Stephen Boyd).
 
  - Rework filesystem sync messages emitted during system suspend and
    hibernation (Harry Pan).
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Merge tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These fix the (Intel-specific) Performance and Energy Bias Hint (EPB)
  handling and expose it to user space via sysfs, fix and clean up
  several cpufreq drivers, add support for two new chips to the qoriq
  cpufreq driver, fix, simplify and clean up the cpufreq core and the
  schedutil governor, add support for "CPU" domains to the generic power
  domains (genpd) framework and provide low-level PSCI firmware support
  for that feature, fix the exynos cpuidle driver and fix a couple of
  issues in the devfreq subsystem and clean it up.

  Specifics:

   - Fix the handling of Performance and Energy Bias Hint (EPB) on Intel
     processors and expose it to user space via sysfs to avoid having to
     access it through the generic MSR I/F (Rafael Wysocki).

   - Improve the handling of global turbo changes made by the platform
     firmware in the intel_pstate driver (Rafael Wysocki).

   - Convert some slow-path static_cpu_has() callers to boot_cpu_has()
     in cpufreq (Borislav Petkov).

   - Fix the frequency calculation loop in the armada-37xx cpufreq
     driver (Gregory CLEMENT).

   - Fix possible object reference leaks in multuple cpufreq drivers
     (Wen Yang).

   - Fix kerneldoc comment in the centrino cpufreq driver (dongjian).

   - Clean up the ACPI and maple cpufreq drivers (Viresh Kumar, Mohan
     Kumar).

   - Add support for lx2160a and ls1028a to the qoriq cpufreq driver
     (Vabhav Sharma, Yuantian Tang).

   - Fix kobject memory leak in the cpufreq core (Viresh Kumar).

   - Simplify the IOwait boosting in the schedutil cpufreq governor and
     rework the TSC cpufreq notifier on x86 (Rafael Wysocki).

   - Clean up the cpufreq core and statistics code (Yue Hu, Kyle Lin).

   - Improve the cpufreq documentation, add SPDX license tags to some PM
     documentation files and unify copyright notices in them (Rafael
     Wysocki).

   - Add support for "CPU" domains to the generic power domains (genpd)
     framework and provide low-level PSCI firmware support for that
     feature (Ulf Hansson).

   - Rearrange the PSCI firmware support code and add support for
     SYSTEM_RESET2 to it (Ulf Hansson, Sudeep Holla).

   - Improve genpd support for devices in multiple power domains (Ulf
     Hansson).

   - Unify target residency for the AFTR and coupled AFTR states in the
     exynos cpuidle driver (Marek Szyprowski).

   - Introduce new helper routine in the operating performance points
     (OPP) framework (Andrew-sh.Cheng).

   - Add support for passing on-die termination (ODT) and auto power
     down parameters from the kernel to Trusted Firmware-A (TF-A) to the
     rk3399_dmc devfreq driver (Enric Balletbo i Serra).

   - Add tracing to devfreq (Lukasz Luba).

   - Make the exynos-bus devfreq driver suspend all devices on system
     shutdown (Marek Szyprowski).

   - Fix a few minor issues in the devfreq subsystem and clean it up
     somewhat (Enric Balletbo i Serra, MyungJoo Ham, Rob Herring,
     Saravana Kannan, Yangtao Li).

   - Improve system wakeup diagnostics (Stephen Boyd).

   - Rework filesystem sync messages emitted during system suspend and
     hibernation (Harry Pan)"

* tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (72 commits)
  cpufreq: Fix kobject memleak
  cpufreq: armada-37xx: fix frequency calculation for opp
  cpufreq: centrino: Fix centrino_setpolicy() kerneldoc comment
  cpufreq: qoriq: add support for lx2160a
  x86: tsc: Rework time_cpufreq_notifier()
  PM / Domains: Allow to attach a CPU via genpd_dev_pm_attach_by_id|name()
  PM / Domains: Search for the CPU device outside the genpd lock
  PM / Domains: Drop unused in-parameter to some genpd functions
  PM / Domains: Use the base device for driver_deferred_probe_check_state()
  cpufreq: qoriq: Add ls1028a chip support
  PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain
  PM / Domains: Allow OF lookup for multi PM domain case from ->attach_dev()
  PM / Domains: Don't kfree() the virtual device in the error path
  cpufreq: Move ->get callback check outside of __cpufreq_get()
  PM / Domains: remove unnecessary unlikely()
  cpufreq: Remove needless bios_limit check in show_bios_limit()
  drivers/cpufreq/acpi-cpufreq.c: This fixes the following checkpatch warning
  firmware/psci: add support for SYSTEM_RESET2
  PM / devfreq: add tracing for scheduling work
  trace: events: add devfreq trace event file
  ...
2019-05-06 19:40:31 -07:00
Alexander Shishkin
6cac7866c2 intel_th: msu: Add a sysfs attribute to trigger window switch
Now that we have the means to trigger a window switch for the MSU trace
store, add a sysfs file to allow triggering it from userspace.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-03 18:17:40 +02:00
Nick Crews
61e93655fc power: supply: core: Add missing documentation for CHARGE_CONTROL_* properties
The existing POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT and
POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX properties
don't have documentation. I add that documentation here.

v5 changes:
- Split this commit out from the previous two commits.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-05-02 01:11:40 +02:00
Nick Crews
813cab8f39 power: supply: core: Add CHARGE_CONTROL_{START_THRESHOLD,END_THRESHOLD} properties
Add POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD
and POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties, to expand
the existing CHARGE_CONTROL_* properties. I am adding them in order
to support a new Chrome OS device, but these properties should be
general enough that they can be used on other devices.

When the charge_type is "Custom", the charge controller uses the
POWER_SUPPLY_PROP_CHARGE_CONTROL_* properties as configuration for some
other algorithm. For example, in the use case that I am supporting,
this means the battery begins charging when the percentage
level drops below POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and
charging ceases when the percentage level goes above
POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD.

v5 changes:
- Add the other missing CHARGE_CONTROL_* properties documentation in
  a separate commit
- Split up adding the charge types and adding the
  POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and
  POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties into
  two different commits.
v4 changes:
- Add documentation for the new properties, and add documentation for
  the the previously missing charge_control_limit and
  charge_control_limit_max properties.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-05-02 01:11:32 +02:00
Nick Crews
ba6cc85084 power: supply: core: Add Standard, Adaptive, and Custom charge types
Add "Standard", "Adaptive", and "Custom" modes to the charge_type
property, to expand the existing "Trickle" and "Fast" modes.
I am adding them in order to support a new Chrome OS device,
but these properties should be general enough that they can be
used on other devices.

The meaning of "Standard" is obvious, but "Adaptive" and "Custom" are
more tricky: "Adaptive" means that the charge controller uses some
custom algorithm to change the charge type automatically, with no
configuration needed. "Custom" means that the charge controller uses the
POWER_SUPPLY_PROP_CHARGE_CONTROL_* properties as configuration for some
other algorithm.

v5 changes:
- Split up adding the charge types and adding the
  POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and
  POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties into
  two different commits.
v4 changes:
- Add documentation for the new properties, and add documentation for
  the the previously missing charge_control_limit and
  charge_control_limit_max properties.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-05-02 01:11:25 +02:00
Gwendal Grignou
8b7a6a3574 iio: cros_ec: add 'id' sysfs entry
This new sysfs entry is used to interpret ring buffer information,
mainly by Android sensor HAL.
It expand to all sensors, the documentation about 'id' we can found
in Documentation/ABI/testing/sysfs-bus-iio-cros-ec.

Also fix typo in docs, I replace 'Septembre' by 'September'.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-27 14:11:59 +01:00
Patrick Havelange
d8ea4ccfae counter: ftm-quaddec: Documentation: Add specific counter sysfs documentation
This adds documentation for the specific prescaler entry.

Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 21:33:42 +02:00
William Breathitt Gray
4bb00e934d iio: counter: Add deprecation markings for IIO Counter attributes
The IIO counter subdirectory is now superceded by the Counter subsystem.
This patch adds deprecation warnings to the documentation of the
relevant IIO Counter sysfs attributes.

Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 21:33:41 +02:00
William Breathitt Gray
7e798ef90c counter: 104-quad-8: Documentation: Add Generic Counter sysfs documentation
This patch adds standard documentation for the Generic Counter interface
userspace sysfs attributes of the 104-QUAD-8 driver.

Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 21:33:39 +02:00