Commit Graph

804796 Commits

Author SHA1 Message Date
Linus Torvalds
e0c38a4d1f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) New ipset extensions for matching on destination MAC addresses, from
    Stefano Brivio.

 2) Add ipv4 ttl and tos, plus ipv6 flow label and hop limit offloads to
    nfp driver. From Stefano Brivio.

 3) Implement GRO for plain UDP sockets, from Paolo Abeni.

 4) Lots of work from Michał Mirosław to eliminate the VLAN_TAG_PRESENT
    bit so that we could support the entire vlan_tci value.

 5) Rework the IPSEC policy lookups to better optimize more usecases,
    from Florian Westphal.

 6) Infrastructure changes eliminating direct manipulation of SKB lists
    wherever possible, and to always use the appropriate SKB list
    helpers. This work is still ongoing...

 7) Lots of PHY driver and state machine improvements and
    simplifications, from Heiner Kallweit.

 8) Various TSO deferral refinements, from Eric Dumazet.

 9) Add ntuple filter support to aquantia driver, from Dmitry Bogdanov.

10) Batch dropping of XDP packets in tuntap, from Jason Wang.

11) Lots of cleanups and improvements to the r8169 driver from Heiner
    Kallweit, including support for ->xmit_more. This driver has been
    getting some much needed love since he started working on it.

12) Lots of new forwarding selftests from Petr Machata.

13) Enable VXLAN learning in mlxsw driver, from Ido Schimmel.

14) Packed ring support for virtio, from Tiwei Bie.

15) Add new Aquantia AQtion USB driver, from Dmitry Bezrukov.

16) Add XDP support to dpaa2-eth driver, from Ioana Ciocoi Radulescu.

17) Implement coalescing on TCP backlog queue, from Eric Dumazet.

18) Implement carrier change in tun driver, from Nicolas Dichtel.

19) Support msg_zerocopy in UDP, from Willem de Bruijn.

20) Significantly improve garbage collection of neighbor objects when
    the table has many PERMANENT entries, from David Ahern.

21) Remove egdev usage from nfp and mlx5, and remove the facility
    completely from the tree as it no longer has any users. From Oz
    Shlomo and others.

22) Add a NETDEV_PRE_CHANGEADDR so that drivers can veto the change and
    therefore abort the operation before the commit phase (which is the
    NETDEV_CHANGEADDR event). From Petr Machata.

23) Add indirect call wrappers to avoid retpoline overhead, and use them
    in the GRO code paths. From Paolo Abeni.

24) Add support for netlink FDB get operations, from Roopa Prabhu.

25) Support bloom filter in mlxsw driver, from Nir Dotan.

26) Add SKB extension infrastructure. This consolidates the handling of
    the auxiliary SKB data used by IPSEC and bridge netfilter, and is
    designed to support the needs to MPTCP which could be integrated in
    the future.

27) Lots of XDP TX optimizations in mlx5 from Tariq Toukan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1845 commits)
  net: dccp: fix kernel crash on module load
  drivers/net: appletalk/cops: remove redundant if statement and mask
  bnx2x: Fix NULL pointer dereference in bnx2x_del_all_vlans() on some hw
  net/net_namespace: Check the return value of register_pernet_subsys()
  net/netlink_compat: Fix a missing check of nla_parse_nested
  ieee802154: lowpan_header_create check must check daddr
  net/mlx4_core: drop useless LIST_HEAD
  mlxsw: spectrum: drop useless LIST_HEAD
  net/mlx5e: drop useless LIST_HEAD
  iptunnel: Set tun_flags in the iptunnel_metadata_reply from src
  net/mlx5e: fix semicolon.cocci warnings
  staging: octeon: fix build failure with XFRM enabled
  net: Revert recent Spectre-v1 patches.
  can: af_can: Fix Spectre v1 vulnerability
  packet: validate address length if non-zero
  nfc: af_nfc: Fix Spectre v1 vulnerability
  phonet: af_phonet: Fix Spectre v1 vulnerability
  net: core: Fix Spectre v1 vulnerability
  net: minor cleanup in skb_ext_add()
  net: drop the unused helper skb_ext_get()
  ...
2018-12-27 13:04:52 -08:00
Linus Torvalds
7f9f852c75 Modules updates for v4.21
Summary of modules changes for the 4.21 merge window:
 
 - Some modules-related kallsyms cleanups and a kallsyms fix for ARM.
 
 - Include keys from the secondary keyring in module signature
   verification.
 
 Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux

Pull modules updates from Jessica Yu:

 - Some modules-related kallsyms cleanups and a kallsyms fix for ARM.

 - Include keys from the secondary keyring in module signature
   verification.

* tag 'modules-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  ARM: module: Fix function kallsyms on Thumb-2
  module: Overwrite st_size instead of st_info
  module: make it clearer when we're handling kallsyms symbols vs exported symbols
  modsign: use all trusted keys to verify module signature
2018-12-27 12:08:33 -08:00
Linus Torvalds
3f03bf9394 Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull general security subsystem updates from James Morris:
 "The main changes here are Paul Gortmaker's removal of unneccesary
  module.h infrastructure"

* 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  security: integrity: partial revert of make ima_main explicitly non-modular
  security: fs: make inode explicitly non-modular
  security: audit and remove any unnecessary uses of module.h
  security: integrity: make evm_main explicitly non-modular
  keys: remove needless modular infrastructure from ecryptfs_format
  security: integrity: make ima_main explicitly non-modular
  tomoyo: fix small typo
2018-12-27 12:04:52 -08:00
Linus Torvalds
fb2a624d5f selinux/stable-4.21 PR 20181224
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Merge tag 'selinux-pr-20181224' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux patches from Paul Moore:
 "I already used my best holiday pull request lines in the audit pull
  request, so this one is going to be a bit more boring, sorry about
  that. To make up for this, we do have a birthday of sorts to
  celebrate: SELinux turns 18 years old this December. Perhaps not the
  most exciting thing in the world for most people, but I think it's
  safe to say that anyone reading this email doesn't exactly fall into
  the "most people" category.

  Back to business and the pull request itself:

  Ondrej has five patches in this pull request and I lump them into
  three categories: one patch to always allow submounts (using similar
  logic to elsewhere in the kernel), one to fix some issues with the
  SELinux policydb, and the others to cleanup and improve the SELinux
  sidtab.

  The other patches from Alexey and Petr and trivial fixes that are
  adequately described in their respective subject lines.

  With this last pull request of the year, I want to thank everyone who
  has contributed patches, testing, and reviews to the SELinux project
  this year, and the past 18 years. Like any good open source effort,
  SELinux is only as good as the community which supports it, and I'm
  very happy that we have the community we do - thank you all!"

* tag 'selinux-pr-20181224' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: overhaul sidtab to fix bug and improve performance
  selinux: use separate table for initial SID lookup
  selinux: make "selinux_policycap_names[]" const char *
  selinux: always allow mounting submounts
  selinux: refactor sidtab conversion
  Documentation: Update SELinux reference policy URL
  selinux: policydb - fix byte order and alignment issues
2018-12-27 12:01:58 -08:00
Linus Torvalds
047ce6d380 audit/stable-4.21 PR 20181224
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Merge tag 'audit-pr-20181224' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:
 "In the finest of holiday of traditions, I have a number of gifts to
  share today. While most of them are re-gifts from others, unlike the
  typical re-gift, these are things you will want in and around your
  tree; I promise.

  This pull request is perhaps a bit larger than our typical PR, but
  most of it comes from Jan's rework of audit's fanotify code; a very
  welcome improvement. We ran this through our normal regression tests,
  as well as some newly created stress tests and everything looks good.

  Richard added a few patches, mostly cleaning up a few things and and
  shortening some of the audit records that we send to userspace; a
  change the userspace folks are quite happy about.

  Finally YueHaibing and I kick in a few patches to simplify things a
  bit and make the code less prone to errors.

  Lastly, I want to say thanks one more time to everyone who has
  contributed patches, testing, and code reviews for the audit subsystem
  over the past year. The project is what it is due to your help and
  contributions - thank you"

* tag 'audit-pr-20181224' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: (22 commits)
  audit: remove duplicated include from audit.c
  audit: shorten PATH cap values when zero
  audit: use current whenever possible
  audit: minimize our use of audit_log_format()
  audit: remove WATCH and TREE config options
  audit: use session_info helper
  audit: localize audit_log_session_info prototype
  audit: Use 'mark' name for fsnotify_mark variables
  audit: Replace chunk attached to mark instead of replacing mark
  audit: Simplify locking around untag_chunk()
  audit: Drop all unused chunk nodes during deletion
  audit: Guarantee forward progress of chunk untagging
  audit: Allocate fsnotify mark independently of chunk
  audit: Provide helper for dropping mark's chunk reference
  audit: Remove pointless check in insert_hash()
  audit: Factor out chunk replacement code
  audit: Make hash table insertion safe against concurrent lookups
  audit: Embed key into chunk
  audit: Fix possible tagging failures
  audit: Fix possible spurious -ENOSPC error
  ...
2018-12-27 11:58:50 -08:00
Linus Torvalds
a3b5c1065f Printk changes for 4.21
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Merge tag 'printk-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk

Pull printk updates from Petr Mladek:

 - Keep spinlocks busted until the end of panic()

 - Fix races between calculating number of messages that would fit into
   user space buffers, filling the buffers, and switching printk.time
   parameter

 - Some code clean up

* tag 'printk-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
  printk: Remove print_prefix() calls with NULL buffer.
  printk: fix printk_time race.
  printk: Make printk_emit() local function.
  panic: avoid deadlocks in re-entrant console drivers
2018-12-27 11:24:43 -08:00
Linus Torvalds
c6f1b355d4 New gcc-plugin:
- Enable per-task stack protector for ARM (Ard Biesheuvel)
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Merge tag 'gcc-plugins-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull gcc-plugins update from Kees Cook:
 "Both arm and arm64 are gaining per-task stack canaries (to match x86),
  but arm is being done with a gcc plugin, hence it going through the
  gcc-plugins tree.

  New gcc-plugin:

   - Enable per-task stack protector for ARM (Ard Biesheuvel)"

* tag 'gcc-plugins-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  ARM: smp: add support for per-task stack canaries
2018-12-27 11:19:07 -08:00
Linus Torvalds
c06e9ef691 pstore improvements and refactorings
- Improve compression handling
 - Refactor argument handling during initialization
 - Avoid needless locking for saner EFI backend handling
 - Add more kern-doc and improve debugging output
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Merge tag 'pstore-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull pstore updates from Kees Cook:
 "Improvements and refactorings:

   - Improve compression handling

   - Refactor argument handling during initialization

   - Avoid needless locking for saner EFI backend handling

   - Add more kern-doc and improve debugging output"

* tag 'pstore-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore/ram: Avoid NULL deref in ftrace merging failure path
  pstore: Convert buf_lock to semaphore
  pstore: Fix bool initialization/comparison
  pstore/ram: Do not treat empty buffers as valid
  pstore/ram: Simplify ramoops_get_next_prz() arguments
  pstore: Map PSTORE_TYPE_* to strings
  pstore: Replace open-coded << with BIT()
  pstore: Improve and update some comments and status output
  pstore/ram: Add kern-doc for struct persistent_ram_zone
  pstore/ram: Report backend assignments with finer granularity
  pstore/ram: Standardize module name in ramoops
  pstore: Avoid duplicate call of persistent_ram_zap()
  pstore: Remove needless lock during console writes
  pstore: Do not use crash buffer for decompression
2018-12-27 11:15:21 -08:00
Linus Torvalds
8d6973327e powerpc updates for 4.21
Notable changes:
 
  - Mitigations for Spectre v2 on some Freescale (NXP) CPUs.
 
  - A large series adding support for pass-through of Nvidia V100 GPUs to guests
    on Power9.
 
  - Another large series to enable hardware assistance for TLB table walk on
    MPC8xx CPUs.
 
  - Some preparatory changes to our DMA code, to make way for further cleanups
    from Christoph.
 
  - Several fixes for our Transactional Memory handling discovered by fuzzing the
    signal return path.
 
  - Support for generating our system call table(s) from a text file like other
    architectures.
 
  - A fix to our page fault handler so that instead of generating a WARN_ON_ONCE,
    user accesses of kernel addresses instead print a ratelimited and
    appropriately scary warning.
 
  - A cosmetic change to make our unhandled page fault messages more similar to
    other arches and also more compact and informative.
 
  - Freescale updates from Scott:
    "Highlights include elimination of legacy clock bindings use from dts
     files, an 83xx watchdog handler, fixes to old dts interrupt errors, and
     some minor cleanup."
 
 And many clean-ups, reworks and minor fixes etc.
 
 Thanks to:
  Alexandre Belloni, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V,
  Arnd Bergmann, Benjamin Herrenschmidt, Breno Leitao, Christian Lamparter,
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  Gibson, Diana Craciun, Dmitry V. Levin, Firoz Khan, Geert Uytterhoeven, Greg
  Kurz, Gustavo Romero, Hari Bathini, Joel Stanley, Kees Cook, Madhavan
  Srinivasan, Mahesh Salgaonkar, Markus Elfring, Mathieu Malaterre, Michal
  Suchánek, Naveen N. Rao, Nick Desaulniers, Oliver O'Halloran, Paul Mackerras,
  Ram Pai, Ravi Bangoria, Rob Herring, Russell Currey, Sabyasachi Gupta, Sam
  Bobroff, Satheesh Rajendran, Scott Wood, Segher Boessenkool, Stephen Rothwell,
  Tang Yuantian, Thiago Jung Bauermann, Yangtao Li, Yuantian Tang, Yue Haibing.
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Merge tag 'powerpc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Notable changes:

   - Mitigations for Spectre v2 on some Freescale (NXP) CPUs.

   - A large series adding support for pass-through of Nvidia V100 GPUs
     to guests on Power9.

   - Another large series to enable hardware assistance for TLB table
     walk on MPC8xx CPUs.

   - Some preparatory changes to our DMA code, to make way for further
     cleanups from Christoph.

   - Several fixes for our Transactional Memory handling discovered by
     fuzzing the signal return path.

   - Support for generating our system call table(s) from a text file
     like other architectures.

   - A fix to our page fault handler so that instead of generating a
     WARN_ON_ONCE, user accesses of kernel addresses instead print a
     ratelimited and appropriately scary warning.

   - A cosmetic change to make our unhandled page fault messages more
     similar to other arches and also more compact and informative.

   - Freescale updates from Scott:
       "Highlights include elimination of legacy clock bindings use from
        dts files, an 83xx watchdog handler, fixes to old dts interrupt
        errors, and some minor cleanup."

  And many clean-ups, reworks and minor fixes etc.

  Thanks to: Alexandre Belloni, Alexey Kardashevskiy, Andrew Donnellan,
  Aneesh Kumar K.V, Arnd Bergmann, Benjamin Herrenschmidt, Breno Leitao,
  Christian Lamparter, Christophe Leroy, Christoph Hellwig, Daniel
  Axtens, Darren Stevens, David Gibson, Diana Craciun, Dmitry V. Levin,
  Firoz Khan, Geert Uytterhoeven, Greg Kurz, Gustavo Romero, Hari
  Bathini, Joel Stanley, Kees Cook, Madhavan Srinivasan, Mahesh
  Salgaonkar, Markus Elfring, Mathieu Malaterre, Michal Suchánek, Naveen
  N. Rao, Nick Desaulniers, Oliver O'Halloran, Paul Mackerras, Ram Pai,
  Ravi Bangoria, Rob Herring, Russell Currey, Sabyasachi Gupta, Sam
  Bobroff, Satheesh Rajendran, Scott Wood, Segher Boessenkool, Stephen
  Rothwell, Tang Yuantian, Thiago Jung Bauermann, Yangtao Li, Yuantian
  Tang, Yue Haibing"

* tag 'powerpc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (201 commits)
  Revert "powerpc/fsl_pci: simplify fsl_pci_dma_set_mask"
  powerpc/zImage: Also check for stdout-path
  powerpc: Fix HMIs on big-endian with CONFIG_RELOCATABLE=y
  macintosh: Use of_node_name_{eq, prefix} for node name comparisons
  ide: Use of_node_name_eq for node name comparisons
  powerpc: Use of_node_name_eq for node name comparisons
  powerpc/pseries/pmem: Convert to %pOFn instead of device_node.name
  powerpc/mm: Remove very old comment in hash-4k.h
  powerpc/pseries: Fix node leak in update_lmb_associativity_index()
  powerpc/configs/85xx: Enable CONFIG_DEBUG_KERNEL
  powerpc/dts/fsl: Fix dtc-flagged interrupt errors
  clk: qoriq: add more compatibles strings
  powerpc/fsl: Use new clockgen binding
  powerpc/83xx: handle machine check caused by watchdog timer
  powerpc/fsl-rio: fix spelling mistake "reserverd" -> "reserved"
  powerpc/fsl_pci: simplify fsl_pci_dma_set_mask
  arch/powerpc/fsl_rmu: Use dma_zalloc_coherent
  vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver
  vfio_pci: Allow regions to add own capabilities
  vfio_pci: Allow mapping extra regions
  ...
2018-12-27 10:43:24 -08:00
Olof Johansson
6d101ba6be sched/fair: Fix warning on non-SMP build
Caused by making the variable static:

  kernel/sched/fair.c:119:21: warning: 'capacity_margin' defined but not used [-Wunused-variable]

Seems easiest to just move it up under the existing ifdef CONFIG_SMP
that's a few lines above.

Fixes: ed8885a144 ('sched/fair: Make some variables static')
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-27 10:40:15 -08:00
Linus Torvalds
fc2fd5f0f1 Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform update from Ingo Molnar:
 "An OLPC platform support simplification patch"

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/olpc: Do not call of_platform_bus_probe()
2018-12-26 18:42:51 -08:00
Linus Torvalds
e57d9f638a Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Update and clean up x86 fault handling, by Andy Lutomirski.

   - Drop usage of __flush_tlb_all() in kernel_physical_mapping_init()
     and related fallout, by Dan Williams.

   - CPA cleanups and reorganization by Peter Zijlstra: simplify the
     flow and remove a few warts.

   - Other misc cleanups"

* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
  x86/mm/dump_pagetables: Use DEFINE_SHOW_ATTRIBUTE()
  x86/mm/cpa: Rename @addrinarray to @numpages
  x86/mm/cpa: Better use CLFLUSHOPT
  x86/mm/cpa: Fold cpa_flush_range() and cpa_flush_array() into a single cpa_flush() function
  x86/mm/cpa: Make cpa_data::numpages invariant
  x86/mm/cpa: Optimize cpa_flush_array() TLB invalidation
  x86/mm/cpa: Simplify the code after making cpa->vaddr invariant
  x86/mm/cpa: Make cpa_data::vaddr invariant
  x86/mm/cpa: Add __cpa_addr() helper
  x86/mm/cpa: Add ARRAY and PAGES_ARRAY selftests
  x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init()
  x86/mm: Validate kernel_physical_mapping_init() PTE population
  generic/pgtable: Introduce set_pte_safe()
  generic/pgtable: Introduce {p4d,pgd}_same()
  generic/pgtable: Make {pmd, pud}_same() unconditionally available
  x86/fault: Clean up the page fault oops decoder a bit
  x86/fault: Decode page fault OOPSes better
  x86/vsyscall/64: Use X86_PF constants in the simulated #PF error code
  x86/oops: Show the correct CS value in show_regs()
  x86/fault: Don't try to recover from an implicit supervisor access
  ...
2018-12-26 18:08:18 -08:00
Linus Torvalds
d6e867a6ae Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fpu updates from Ingo Molnar:
 "Misc preparatory changes for an upcoming FPU optimization that will
  delay the loading of FPU registers to return-to-userspace"

* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Don't export __kernel_fpu_{begin,end}()
  x86/fpu: Update comment for __raw_xsave_addr()
  x86/fpu: Add might_fault() to user_insn()
  x86/pkeys: Make init_pkru_value static
  x86/thread_info: Remove _TIF_ALLWORK_MASK
  x86/process/32: Remove asm/math_emu.h include
  x86/fpu: Use unsigned long long shift in xfeature_uncompacted_offset()
2018-12-26 17:37:51 -08:00
Linus Torvalds
db2ab474c4 Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu updates from Ingo Molnar:
 "Misc changes:

   - Fix nr_cpus= boot option interaction bug with logical package
     management

   - Clean up UMIP detection messages

   - Add WBNOINVD instruction detection

   - Remove the unused get_scattered_cpuid_leaf() function"

* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/topology: Use total_cpus for max logical packages calculation
  x86/umip: Make the UMIP activated message generic
  x86/umip: Print UMIP line only once
  x86/cpufeatures: Add WBNOINVD feature definition
  x86/cpufeatures: Remove get_scattered_cpuid_leaf()
2018-12-26 17:35:41 -08:00
Linus Torvalds
312a466155 Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
 "Misc cleanups"

* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/kprobes: Remove trampoline_handler() prototype
  x86/kernel: Fix more -Wmissing-prototypes warnings
  x86: Fix various typos in comments
  x86/headers: Fix -Wmissing-prototypes warning
  x86/process: Avoid unnecessary NULL check in get_wchan()
  x86/traps: Complete prototype declarations
  x86/mce: Fix -Wmissing-prototypes warnings
  x86/gart: Rewrite early_gart_iommu_check() comment
2018-12-26 17:03:51 -08:00
Linus Torvalds
6e54df001a Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 build updates from Ingo Molnar:

 - Resolve LLVM build bug by removing redundant GNU specific flag

 - Remove obsolete -funit-at-a-time and -fno-unit-at-a-time use from x86
   PowerPC and UM.

   The UML change was seen and acked by UML maintainer Richard
   Weinberger.

* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/um/vdso: Drop implicit common-page-size linker flag
  x86, powerpc: Remove -funit-at-a-time compiler option entirely
  x86/um: Remove -fno-unit-at-a-time workaround for pre-4.0 GCC
2018-12-26 16:57:27 -08:00
Linus Torvalds
9a126e788a Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 boot updates from Ingo Molnar:
 "Two cleanups"

* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Add missing va_end() to die()
  x86/boot: Simplify the detect_memory*() control flow
2018-12-26 16:56:00 -08:00
Linus Torvalds
38fabca18f Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Ingo Molnar:
 "Two changes:

   - Remove (some) remnants of the vDSO's fake section table mechanism
     that were left behind when the vDSO build process reverted to using
     "objdump -S" to strip the userspace image.

   - Remove hardcoded POPCNT mnemonics now that the minimum binutils
     version supports the symbolic form"

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/vdso: Remove a stale/misleading comment from the linker script
  x86/vdso: Remove obsolete "fake section table" reservation
  x86: Use POPCNT mnemonics in arch_hweight.h
2018-12-26 16:25:06 -08:00
Linus Torvalds
8465625ab4 Merge branch 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 AMD northbridge updates from Ingo Molnar:
 "Update DF/SMN access and k10temp for AMD F17h M30h, by Brian Woods:

   'Updates the data fabric/system management network code needed to get
    k10temp working for M30h. Since there are now processors which have
    multiple roots per DF/SMN interface, there needs to some logic which
    skips N-1 root complexes per DF/SMN interface. This is because the
    root complexes per interface are redundant (as far as DF/SMN goes).
    These changes shouldn't effect past processors and, for F17h M0Xh,
    the mappings stay the same.'

  The hwmon changes were seen and acked by hwmon maintainer Guenter Roeck"

* 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  hwmon/k10temp: Add support for AMD family 17h, model 30h CPUs
  x86/amd_nb: Add PCI device IDs for family 17h, model 30h
  x86/amd_nb: Add support for newer PCI topologies
  hwmon/k10temp, x86/amd_nb: Consolidate shared device IDs
2018-12-26 16:12:50 -08:00
Linus Torvalds
17bf423a1f Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Introduce "Energy Aware Scheduling" - by Quentin Perret.

     This is a coherent topology description of CPUs in cooperation with
     the PM subsystem, with the goal to schedule more energy-efficiently
     on asymetric SMP platform - such as waking up tasks to the more
     energy-efficient CPUs first, as long as the system isn't
     oversubscribed.

     For details of the design, see:

        https://lore.kernel.org/lkml/20180724122521.22109-1-quentin.perret@arm.com/

   - Misc cleanups and smaller enhancements"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  sched/fair: Select an energy-efficient CPU on task wake-up
  sched/fair: Introduce an energy estimation helper function
  sched/fair: Add over-utilization/tipping point indicator
  sched/fair: Clean-up update_sg_lb_stats parameters
  sched/toplogy: Introduce the 'sched_energy_present' static key
  sched/topology: Make Energy Aware Scheduling depend on schedutil
  sched/topology: Disable EAS on inappropriate platforms
  sched/topology: Add lowest CPU asymmetry sched_domain level pointer
  sched/topology: Reference the Energy Model of CPUs when available
  PM: Introduce an Energy Model management framework
  sched/cpufreq: Prepare schedutil for Energy Aware Scheduling
  sched/topology: Relocate arch_scale_cpu_capacity() to the internal header
  sched/core: Remove unnecessary unlikely() in push_*_task()
  sched/topology: Remove the ::smt_gain field from 'struct sched_domain'
  sched: Fix various typos in comments
  sched/core: Clean up the #ifdef block in add_nr_running()
  sched/fair: Make some variables static
  sched/core: Create task_has_idle_policy() helper
  sched/fair: Add lsub_positive() and use it consistently
  sched/fair: Mask UTIL_AVG_UNCHANGED usages
  ...
2018-12-26 14:56:10 -08:00
Linus Torvalds
116b081c28 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
 "The main changes in this cycle on the kernel side:

   - rework kprobes blacklist handling (Masami Hiramatsu)

   - misc cleanups

  on the tooling side these areas were the main focus:

   - 'perf trace'     enhancements (Arnaldo Carvalho de Melo)

   - 'perf bench'     enhancements (Davidlohr Bueso)

   - 'perf record'    enhancements (Alexey Budankov)

   - 'perf annotate'  enhancements (Jin Yao)

   - 'perf top'       enhancements (Jiri Olsa)

   - Intel hw tracing enhancements (Adrian Hunter)

   - ARM hw tracing   enhancements (Leo Yan, Mathieu Poirier)

   - ... plus lots of other enhancements, cleanups and fixes"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (171 commits)
  tools uapi asm: Update asm-generic/unistd.h copy
  perf symbols: Relax checks on perf-PID.map ownership
  perf trace: Wire up the fadvise 'advice' table generator
  perf beauty: Add generator for fadvise64's 'advice' arg constants
  tools headers uapi: Grab a copy of fadvise.h
  perf beauty mmap: Print mmap's 'offset' arg in hexadecimal
  perf beauty mmap: Print PROT_READ before PROT_EXEC to match strace output
  perf trace beauty: Beautify arch_prctl()'s arguments
  perf trace: When showing string prefixes show prefix + ??? for unknown entries
  perf trace: Move strarrays to beauty.h for further reuse
  perf beauty: Wire up the x86_arch prctl code table generator
  perf beauty: Add a string table generator for x86's 'arch_prctl' codes
  tools include arch: Grab a copy of x86's prctl.h
  perf trace: Show NULL when syscall pointer args are 0
  perf trace: Enclose the errno strings with ()
  perf augmented_raw_syscalls: Copy 'access' arg as well
  perf trace: Add alignment spaces after the closing parens
  perf trace beauty: Print O_RDONLY when (flags & O_ACCMODE) == 0
  perf trace: Allow asking for not suppressing common string prefixes
  perf trace: Add a prefix member to the strarray class
  ...
2018-12-26 14:45:18 -08:00
Linus Torvalds
1eefdec18e Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
 "The main change in this cycle are initial preparatory bits of dynamic
  lockdep keys support from Bart Van Assche.

  There are also misc changes, a comment cleanup and a data structure
  cleanup"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Clean up comment in nohz_idle_balance()
  locking/lockdep: Stop using RCU primitives to access 'all_lock_classes'
  locking/lockdep: Make concurrent lockdep_reset_lock() calls safe
  locking/lockdep: Remove a superfluous INIT_LIST_HEAD() statement
  locking/lockdep: Introduce lock_class_cache_is_registered()
  locking/lockdep: Inline __lockdep_init_map()
  locking/lockdep: Declare local symbols static
  tools/lib/lockdep/tests: Test the lockdep_reset_lock() implementation
  tools/lib/lockdep: Add dummy print_irqtrace_events() implementation
  tools/lib/lockdep: Rename "trywlock" into "trywrlock"
  tools/lib/lockdep/tests: Run lockdep tests a second time under Valgrind
  tools/lib/lockdep/tests: Improve testing accuracy
  tools/lib/lockdep/tests: Fix shellcheck warnings
  tools/lib/lockdep/tests: Display compiler warning and error messages
  locking/lockdep: Remove ::version from lock_class structure
2018-12-26 14:25:52 -08:00
Linus Torvalds
684019dd1f Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Allocate the E820 buffer before doing the
     GetMemoryMap/ExitBootServices dance so we don't run out of space

   - Clear EFI boot services mappings when freeing the memory

   - Harden efivars against callers that invoke it on non-EFI boots

   - Reduce the number of memblock reservations resulting from extensive
     use of the new efi_mem_reserve_persistent() API

   - Other assorted fixes and cleanups"

* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/efi: Don't unmap EFI boot services code/data regions for EFI_OLD_MEMMAP and EFI_MIXED_MODE
  efi: Reduce the amount of memblock reservations for persistent allocations
  efi: Permit multiple entries in persistent memreserve data structure
  efi/libstub: Disable some warnings for x86{,_64}
  x86/efi: Move efi_<reserve/free>_boot_services() to arch/x86
  x86/efi: Unmap EFI boot services code/data regions from efi_pgd
  x86/mm/pageattr: Introduce helper function to unmap EFI boot services
  efi/fdt: Simplify the get_fdt() flow
  efi/fdt: Indentation fix
  firmware/efi: Add NULL pointer checks in efivars API functions
2018-12-26 13:38:38 -08:00
Linus Torvalds
792bf4d871 Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
 "The biggest RCU changes in this cycle were:

   - Convert RCU's BUG_ON() and similar calls to WARN_ON() and similar.

   - Replace calls of RCU-bh and RCU-sched update-side functions to
     their vanilla RCU counterparts. This series is a step towards
     complete removal of the RCU-bh and RCU-sched update-side functions.

     ( Note that some of these conversions are going upstream via their
       respective maintainers. )

   - Documentation updates, including a number of flavor-consolidation
     updates from Joel Fernandes.

   - Miscellaneous fixes.

   - Automate generation of the initrd filesystem used for rcutorture
     testing.

   - Convert spin_is_locked() assertions to instead use lockdep.

     ( Note that some of these conversions are going upstream via their
       respective maintainers. )

   - SRCU updates, especially including a fix from Dennis Krein for a
     bag-on-head-class bug.

   - RCU torture-test updates"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (112 commits)
  rcutorture: Don't do busted forward-progress testing
  rcutorture: Use 100ms buckets for forward-progress callback histograms
  rcutorture: Recover from OOM during forward-progress tests
  rcutorture: Print forward-progress test age upon failure
  rcutorture: Print time since GP end upon forward-progress failure
  rcutorture: Print histogram of CB invocation at OOM time
  rcutorture: Print GP age upon forward-progress failure
  rcu: Print per-CPU callback counts for forward-progress failures
  rcu: Account for nocb-CPU callback counts in RCU CPU stall warnings
  rcutorture: Dump grace-period diagnostics upon forward-progress OOM
  rcutorture: Prepare for asynchronous access to rcu_fwd_startat
  torture: Remove unnecessary "ret" variables
  rcutorture: Affinity forward-progress test to avoid housekeeping CPUs
  rcutorture: Break up too-long rcu_torture_fwd_prog() function
  rcutorture: Remove cbflood facility
  torture: Bring any extra CPUs online during kernel startup
  rcutorture: Add call_rcu() flooding forward-progress tests
  rcutorture/formal: Replace synchronize_sched() with synchronize_rcu()
  tools/kernel.h: Replace synchronize_sched() with synchronize_rcu()
  net/decnet: Replace rcu_barrier_bh() with rcu_barrier()
  ...
2018-12-26 13:07:19 -08:00
Linus Torvalds
eed9688f85 Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS updates from Borislav Petkov:
 "This time around we have a subsystem reorganization to offer, with the
  new directory being

    arch/x86/kernel/cpu/mce/

  and all compilation units' names streamlined under it"

* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Restore MCE injector's module name
  x86/mce: Unify pr_* prefix
  x86/mce: Streamline MCE subsystem's naming
2018-12-26 13:03:47 -08:00
Linus Torvalds
72af84151f Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode loading updates from Borislav Petkov:
 "This update contains work started by Maciej to make the microcode
  container verification more robust against all kinds of corruption and
  also unify verification paths between early and late loading.

  The result is a set of verification routines which validate the
  microcode blobs before loading it on the CPU. In addition, the code is
  a lot more streamlined and unified.

  In the process, some of the aspects of patch handling and loading were
  simplified.

  All provided by Maciej S. Szmigiero and Borislav Petkov"

* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/AMD: Update copyright
  x86/microcode/AMD: Check the equivalence table size when scanning it
  x86/microcode/AMD: Convert CPU equivalence table variable into a struct
  x86/microcode/AMD: Check microcode container data in the late loader
  x86/microcode/AMD: Fix container size's type
  x86/microcode/AMD: Convert early parser to the new verification routines
  x86/microcode/AMD: Change verify_patch()'s return value
  x86/microcode/AMD: Move chipset-specific check into verify_patch()
  x86/microcode/AMD: Move patch family check to verify_patch()
  x86/microcode/AMD: Simplify patch family detection
  x86/microcode/AMD: Concentrate patch verification
  x86/microcode/AMD: Cleanup verify_patch_size() more
  x86/microcode/AMD: Clean up per-family patch size checks
  x86/microcode/AMD: Move verify_patch_size() up in the file
  x86/microcode/AMD: Add microcode container verification
  x86/microcode/AMD: Subtract SECTION_HDR_SIZE from file leftover length
2018-12-26 12:55:57 -08:00
Linus Torvalds
a52fb43a5f Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cache control updates from Borislav Petkov:

 - The generalization of the RDT code to accommodate the addition of
   AMD's very similar implementation of the cache monitoring feature.

   This entails a subsystem move into a separate and generic
   arch/x86/kernel/cpu/resctrl/ directory along with adding
   vendor-specific initialization and feature detection helpers.

   Ontop of that is the unification of user-visible strings, both in the
   resctrl filesystem error handling and Kconfig.

   Provided by Babu Moger and Sherry Hurwitz.

 - Code simplifications and error handling improvements by Reinette
   Chatre.

* 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/resctrl: Fix rdt_find_domain() return value and checks
  x86/resctrl: Remove unnecessary check for cbm_validate()
  x86/resctrl: Use rdt_last_cmd_puts() where possible
  MAINTAINERS: Update resctrl filename patterns
  Documentation: Rename and update intel_rdt_ui.txt to resctrl_ui.txt
  x86/resctrl: Introduce AMD QOS feature
  x86/resctrl: Fixup the user-visible strings
  x86/resctrl: Add AMD's X86_FEATURE_MBA to the scattered CPUID features
  x86/resctrl: Rename the config option INTEL_RDT to RESCTRL
  x86/resctrl: Add vendor check for the MBA software controller
  x86/resctrl: Bring cbm_validate() into the resource structure
  x86/resctrl: Initialize the vendor-specific resource functions
  x86/resctrl: Move all the macros to resctrl/internal.h
  x86/resctrl: Re-arrange the RDT init code
  x86/resctrl: Rename the RDT functions and definitions
  x86/resctrl: Rename and move rdt files to a separate directory
2018-12-26 12:17:43 -08:00
Linus Torvalds
42b00f122c * ARM: selftests improvements, large PUD support for HugeTLB,
single-stepping fixes, improved tracing, various timer and vGIC
 fixes
 
 * x86: Processor Tracing virtualization, STIBP support, some correctness fixes,
 refactorings and splitting of vmx.c, use the Hyper-V range TLB flush hypercall,
 reduce order of vcpu struct, WBNOINVD support, do not use -ftrace for __noclone
 functions, nested guest support for PAUSE filtering on AMD, more Hyper-V
 enlightenments (direct mode for synthetic timers)
 
 * PPC: nested VFIO
 
 * s390: bugfixes only this time
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "ARM:
   - selftests improvements
   - large PUD support for HugeTLB
   - single-stepping fixes
   - improved tracing
   - various timer and vGIC fixes

  x86:
   - Processor Tracing virtualization
   - STIBP support
   - some correctness fixes
   - refactorings and splitting of vmx.c
   - use the Hyper-V range TLB flush hypercall
   - reduce order of vcpu struct
   - WBNOINVD support
   - do not use -ftrace for __noclone functions
   - nested guest support for PAUSE filtering on AMD
   - more Hyper-V enlightenments (direct mode for synthetic timers)

  PPC:
   -  nested VFIO

  s390:
   - bugfixes only this time"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits)
  KVM: x86: Add CPUID support for new instruction WBNOINVD
  kvm: selftests: ucall: fix exit mmio address guessing
  Revert "compiler-gcc: disable -ftracer for __noclone functions"
  KVM: VMX: Move VM-Enter + VM-Exit handling to non-inline sub-routines
  KVM: VMX: Explicitly reference RCX as the vmx_vcpu pointer in asm blobs
  KVM: x86: Use jmp to invoke kvm_spurious_fault() from .fixup
  MAINTAINERS: Add arch/x86/kvm sub-directories to existing KVM/x86 entry
  KVM/x86: Use SVM assembly instruction mnemonics instead of .byte streams
  KVM/MMU: Flush tlb directly in the kvm_zap_gfn_range()
  KVM/MMU: Flush tlb directly in kvm_set_pte_rmapp()
  KVM/MMU: Move tlb flush in kvm_set_pte_rmapp() to kvm_mmu_notifier_change_pte()
  KVM: Make kvm_set_spte_hva() return int
  KVM: Replace old tlb flush function with new one to flush a specified range.
  KVM/MMU: Add tlb flush with range helper function
  KVM/VMX: Add hv tlb range flush support
  x86/hyper-v: Add HvFlushGuestAddressList hypercall support
  KVM: Add tlb_remote_flush_with_range callback in kvm_x86_ops
  KVM: x86: Disable Intel PT when VMXON in L1 guest
  KVM: x86: Set intercept for Intel PT MSRs read/write
  KVM: x86: Implement Intel PT MSRs read/write emulation
  ...
2018-12-26 11:46:28 -08:00
Linus Torvalds
460023a5d1 xen: features and fixes for 4.21
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Merge tag 'for-linus-4.21-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:
 "Xen features and fixes:

   - a series to enable KVM guests to be booted by qemu via the Xen PVH
     boot entry for speeding up KVM guest tests

   - a series for a common driver to be used by Xen PV frontends (right
     now drm and sound)

   - two other fixes in Xen related code"

* tag 'for-linus-4.21-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  ALSA: xen-front: Use Xen common shared buffer implementation
  drm/xen-front: Use Xen common shared buffer implementation
  xen: Introduce shared buffer helpers for page directory...
  xen/pciback: Check dev_data before using it
  kprobes/x86/xen: blacklist non-attachable xen interrupt functions
  KVM: x86: Allow Qemu/KVM to use PVH entry point
  xen/pvh: Add memory map pointer to hvm_start_info struct
  xen/pvh: Move Xen code for getting mem map via hcall out of common file
  xen/pvh: Move Xen specific PVH VM initialization out of common file
  xen/pvh: Create a new file for Xen specific PVH code
  xen/pvh: Move PVH entry code out of Xen specific tree
  xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and CONFIG_XEN_PVH
2018-12-26 11:35:07 -08:00
Linus Torvalds
a5f2bd479f Merge branch 'parisc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:
 "The major change in this patchset is the new system call table
  generation support from Firoz Khan"

* 'parisc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: syscalls: ignore nfsservctl for other architectures
  parisc: generate uapi header and system call table files
  parisc: add system call table generation support
  parisc: remove __NR_Linux from uapi header file.
  parisc: add __NR_syscalls along with __NR_Linux_syscalls
  parisc: move __IGNORE* entries to non uapi header
  parisc: Fix HP SDC hpa address output
  parisc: Fix serio address output
  parisc: Split out alternative live patching code
2018-12-26 11:14:52 -08:00
Linus Torvalds
89261c5702 Here's the main MIPS pull for Linux 4.21. Core architecture changes
include:
 
  - Syscall tables & definitions for unistd.h are now generated by
    scripts, providing greater consistency with other architectures &
    making it easier to add new syscalls.
 
  - Support for building kernels with no floating point support, upon
    which any userland attempting to use floating point instructions will
    receive a SIGILL. Mostly useful to shrink the kernel & as preparation
    for nanoMIPS support which does not yet include FP.
 
  - MIPS SIMD Architecture (MSA) vector register context is now exposed
    by ptrace via a new NT_MIPS_MSA regset.
 
  - ASIDs are now stored as 64b values even for MIPS32 kernels, expanding
    the ASID version field sufficiently that we don't need to worry about
    overflow & avoiding rare issues with reused ASIDs that have been
    observed in the wild.
 
  - The branch delay slot "emulation" page is now mapped without write
    permission for the user, preventing its use as a nice location for
    attacks to execute malicious code from.
 
  - Support for ioremap_prot(), primarily to allow gdb or other
    ptrace users the ability to view their tracee's memory using the same
    cache coherency attribute.
 
  - Optimizations to more cpu_has_* macros, allowing more to be
    compile-time constant where possible.
 
  - Enable building the whole kernel with UBSAN instrumentation.
 
  - Enable building the kernel with link-time dead code & data
    elimination.
 
 Platform specific changes include:
 
  - The Boston board gains a workaround for DMA prefetching issues with
    the EG20T Platform Controller Hub that it uses.
 
  - Cleanups to Cavium Octeon code removing about 20k lines of redundant
    code, mostly unused or duplicate register definitions in headers.
 
  - defconfig updates for the DECstation machines, including new
    defconfigs for r4k & 64b machines.
 
  - Further work on Loongson 3 support.
 
  - DMA fixes for SiByte machines.
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Merge tag 'mips_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Paul Burton:
 "Here's the main MIPS pull for Linux 4.21. Core architecture changes
  include:

   - Syscall tables & definitions for unistd.h are now generated by
     scripts, providing greater consistency with other architectures &
     making it easier to add new syscalls.

   - Support for building kernels with no floating point support, upon
     which any userland attempting to use floating point instructions
     will receive a SIGILL. Mostly useful to shrink the kernel & as
     preparation for nanoMIPS support which does not yet include FP.

   - MIPS SIMD Architecture (MSA) vector register context is now exposed
     by ptrace via a new NT_MIPS_MSA regset.

   - ASIDs are now stored as 64b values even for MIPS32 kernels,
     expanding the ASID version field sufficiently that we don't need to
     worry about overflow & avoiding rare issues with reused ASIDs that
     have been observed in the wild.

   - The branch delay slot "emulation" page is now mapped without write
     permission for the user, preventing its use as a nice location for
     attacks to execute malicious code from.

   - Support for ioremap_prot(), primarily to allow gdb or other ptrace
     users the ability to view their tracee's memory using the same
     cache coherency attribute.

   - Optimizations to more cpu_has_* macros, allowing more to be
     compile-time constant where possible.

   - Enable building the whole kernel with UBSAN instrumentation.

   - Enable building the kernel with link-time dead code & data
     elimination.

  Platform specific changes include:

   - The Boston board gains a workaround for DMA prefetching issues with
     the EG20T Platform Controller Hub that it uses.

   - Cleanups to Cavium Octeon code removing about 20k lines of
     redundant code, mostly unused or duplicate register definitions in
     headers.

   - defconfig updates for the DECstation machines, including new
     defconfigs for r4k & 64b machines.

   - Further work on Loongson 3 support.

   - DMA fixes for SiByte machines"

* tag 'mips_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (95 commits)
  MIPS: math-emu: Write-protect delay slot emulation pages
  MIPS: Remove struct mm_context_t fp_mode_switching field
  mips: generate uapi header and system call table files
  mips: add system call table generation support
  mips: remove syscall table entries
  mips: add +1 to __NR_syscalls in uapi header
  mips: rename scall64-64.S to scall64-n64.S
  mips: remove unused macros
  mips: add __NR_syscalls along with __NR_Linux_syscalls
  MIPS: Expand MIPS32 ASIDs to 64 bits
  MIPS: OCTEON: delete redundant register definitions
  MIPS: OCTEON: cvmx_gmxx_inf_mode: use oldest forward compatible definition
  MIPS: OCTEON: cvmx_mio_fus_dat3: use oldest forward compatible definition
  MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition
  MIPS: OCTEON: octeon-usb: use common gpio_bit definition
  MIPS: OCTEON: enable all OCTEON drivers in defconfig
  mips: annotate implicit fall throughs
  MIPS: Hardcode cpu_has_mips* where target ISA allows
  MIPS: MT: Remove norps command line parameter
  MIPS: Only include mmzone.h when CONFIG_NEED_MULTIPLE_NODES=y
  ...
2018-12-26 10:45:33 -08:00
Linus Torvalds
c2f1f3e0e1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller:

 - Automatic system call table generation, from Firoz Khan.

 - Clean up accesses to the OF device names by using full_name instead
   of path_component_name.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next:
  ALSA: sparc: Use of_node_name_eq for node name comparisons
  sbus: Use of_node_name_eq for node name comparisons
  sparc: generate uapi header and system call table files
  sparc: add system call table generation support
  sparc: add __NR_syscalls along with NR_syscalls
  sparc: move __IGNORE* entries to non uapi header
  sparc: Use DT node full_name instead of name for resources
  sparc: Remove unused leon_trans_init
  sparc: Use device_type helpers to access the node type
  sparc: Use of_node_name_eq for node name comparisons
  sparc: Convert to using %pOFn instead of device_node.name
  sparc: prom: use property "name" directly to construct node names
  of: Drop full path from full_name for PDT systems
  sparc: Convert to using %pOF instead of full_name
  fs/openpromfs: Use of_node_name_eq for node name comparisons
  fs/openpromfs: use full_name instead of path_component_name
2018-12-26 10:32:18 -08:00
Linus Torvalds
9830afca92 RISC-V Updates for the 4.21 Merge Window, Part 1
We don't have many patches for this merge window, probably because
 everything has been a bit busy with the holidays and conferences.  The
 only big user-visible change is to move over to an SBI-based earlycon
 instead of our arch-specific early printk support.
 
 The only outstanding patch set I know of is the audit patch set, which
 I've managed to make a mess of and will attempt to clean up.
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Merge tag 'riscv-for-linus-4.21-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

Pull RISC-V updates from Palmer Dabbelt:
 "We don't have many patches for this merge window, probably because
  everything has been a bit busy with the holidays and conferences. The
  only big user-visible change is to move over to an SBI-based earlycon
  instead of our arch-specific early printk support.

  The only outstanding patch set I know of is the audit patch set, which
  I've managed to make a mess of and will attempt to clean up"

* tag 'riscv-for-linus-4.21-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
  RISC-V: Select GENERIC_SCHED_CLOCK for clocksource drivers
  RISC-V: lib: minor asm cleanup
  RISC-V: Update Kconfig to better handle CMDLINE
  riscv: remove unused variable in ftrace
  RISC-V: add of_node_put()
  RISC-V: Fix of_node_* refcount
  riscv, atomic: Add #define's for the atomic_{cmp,}xchg_*() variants
  RISC-V: Remove EARLY_PRINTK support
  RISC-V: defconfig: Enable RISC-V SBI earlycon support
2018-12-26 10:29:47 -08:00
Linus Torvalds
30807ef2b7 Microblaze patches for 5.0-rc1
- Fix multiple Kbuild/Makefile issues
 - Start to use system call table generation
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Merge tag 'microblaze-v5.0-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull arch/microblaze updates from Michal Simek:

 - Fix multiple Kbuild/Makefile issues

 - Start to use system call table generation

* tag 'microblaze-v5.0-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: remove the explicit removal of system.dtb
  microblaze: fix race condition in building boot images
  microblaze: add linux.bin* and simpleImage.* to PHONY
  microblaze: fix multiple bugs in arch/microblaze/boot/Makefile
  microblaze: move "... is ready" messages to arch/microblaze/Makefile
  microblaze: adjust the help to the real behavior
  microblaze: generate uapi header and system call table files
  microblaze: add system call table generation support
  microblaze: move __NR_syscalls macro from asm/unistd.h
  microblaze: Typo s/use use/use/
2018-12-26 10:28:09 -08:00
Linus Torvalds
507413a5f8 asm-generic: syscall table script for arch/sh
I worked with Firoz Khan to change all architectures to have their system
 call tables (syscall.S and asm/unistd.h) generated by a script from a more
 readable input file the same way that we already had on x86, s390 and arm.
 
 I offered to take those conversions through the asm-generic tree that
 did not get picked up by the architecture maintainers, and fortunately
 all but one have now been accepted into arch maintainer trees, so this
 branch only contains the conversion for arch/sh/, with permission from
 Rich.
 
 The conversion does not include the old 64-bit sh5 architecture, which
 has never shipped and not even compiled in a long time. The table
 in include/uapi/asm/unistd.h is also not included here, as Firoz is
 still working on that one, it will have to wait for the next following
 merge window, hopefully together with the addition of the 64-bit
 time_t system calls for the y2038 work that led to the system call
 table rework.
 
 Acked-by: Rich Felker <dalias@libc.org>
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'asm-generic-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull arch/sh syscall table scripting from Arnd Bergmann:
 "I worked with Firoz Khan to change all architectures to have their
  system call tables (syscall.S and asm/unistd.h) generated by a script
  from a more readable input file the same way that we already had on
  x86, s390 and arm.

  I offered to take those conversions through the asm-generic tree that
  did not get picked up by the architecture maintainers, and fortunately
  all but one have now been accepted into arch maintainer trees, so this
  branch only contains the conversion for arch/sh/, with permission from
  Rich.

  The conversion does not include the old 64-bit sh5 architecture, which
  has never shipped and not even compiled in a long time. The table in
  include/uapi/asm/unistd.h is also not included here, as Firoz is still
  working on that one, it will have to wait for the next following merge
  window, hopefully together with the addition of the 64-bit time_t
  system calls for the y2038 work that led to the system call table
  rework"

* tag 'asm-generic-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  sh: generate uapi header and syscall table header files
  sh: add system call table generation support
  sh: add __NR_syscalls along with NR_syscalls
2018-12-26 10:23:12 -08:00
Linus Torvalds
9947ab7bc3 Change ia64 to make it easier to update system call tables
(in line with some other architectures). This is in preparation
 for y2038 changes which are forecasted to add several new system
 calls.
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Merge tag 'please-pull-y2038prep' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull ia64 updates from Tony Luck:
 "Change ia64 to make it easier to update system call tables (in line
  with some other architectures).

  This is in preparation for y2038 changes which are forecasted to add
  several new system calls"

* tag 'please-pull-y2038prep' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  ia64: generate uapi header and system call table files
  ia64: add system call table generation support
  ia64: add an offset for system call number
  ia64: add __NR_syscalls along with NR_syscalls
  ia64: add __NR_old_getpagesize in uapi header file
2018-12-26 10:21:11 -08:00
Linus Torvalds
e0783bb424 m68k updates for v4.21
- Generate syscall headers,
   - Small improvements and cleanups,
   - Defconfig updates.
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Merge tag 'm68k-for-v4.21-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - Generate syscall headers

 - Small improvements and cleanups

 - defconfig updates

* tag 'm68k-for-v4.21-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Generate uapi header and syscall table header files
  m68k: Add system call table generation support
  m68k: Add __NR_syscalls along with NR_syscalls
  m68k/defconfig: Update defconfigs for v4.20-rc1
  m68k: Remove redundant 'default n' from Kconfig
  m68k: Unroll raw_outsb() loop
2018-12-26 10:16:55 -08:00
Linus Torvalds
5694cecdb0 arm64 festive updates for 4.21
In the end, we ended up with quite a lot more than I expected:
 
 - Support for ARMv8.3 Pointer Authentication in userspace (CRIU and
   kernel-side support to come later)
 
 - Support for per-thread stack canaries, pending an update to GCC that
   is currently undergoing review
 
 - Support for kexec_file_load(), which permits secure boot of a kexec
   payload but also happens to improve the performance of kexec
   dramatically because we can avoid the sucky purgatory code from
   userspace. Kdump will come later (requires updates to libfdt).
 
 - Optimisation of our dynamic CPU feature framework, so that all
   detected features are enabled via a single stop_machine() invocation
 
 - KPTI whitelisting of Cortex-A CPUs unaffected by Meltdown, so that
   they can benefit from global TLB entries when KASLR is not in use
 
 - 52-bit virtual addressing for userspace (kernel remains 48-bit)
 
 - Patch in LSE atomics for per-cpu atomic operations
 
 - Custom preempt.h implementation to avoid unconditional calls to
   preempt_schedule() from preempt_enable()
 
 - Support for the new 'SB' Speculation Barrier instruction
 
 - Vectorised implementation of XOR checksumming and CRC32 optimisations
 
 - Workaround for Cortex-A76 erratum #1165522
 
 - Improved compatibility with Clang/LLD
 
 - Support for TX2 system PMUS for profiling the L3 cache and DMC
 
 - Reflect read-only permissions in the linear map by default
 
 - Ensure MMIO reads are ordered with subsequent calls to Xdelay()
 
 - Initial support for memory hotplug
 
 - Tweak the threshold when we invalidate the TLB by-ASID, so that
   mremap() performance is improved for ranges spanning multiple PMDs.
 
 - Minor refactoring and cleanups
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 festive updates from Will Deacon:
 "In the end, we ended up with quite a lot more than I expected:

   - Support for ARMv8.3 Pointer Authentication in userspace (CRIU and
     kernel-side support to come later)

   - Support for per-thread stack canaries, pending an update to GCC
     that is currently undergoing review

   - Support for kexec_file_load(), which permits secure boot of a kexec
     payload but also happens to improve the performance of kexec
     dramatically because we can avoid the sucky purgatory code from
     userspace. Kdump will come later (requires updates to libfdt).

   - Optimisation of our dynamic CPU feature framework, so that all
     detected features are enabled via a single stop_machine()
     invocation

   - KPTI whitelisting of Cortex-A CPUs unaffected by Meltdown, so that
     they can benefit from global TLB entries when KASLR is not in use

   - 52-bit virtual addressing for userspace (kernel remains 48-bit)

   - Patch in LSE atomics for per-cpu atomic operations

   - Custom preempt.h implementation to avoid unconditional calls to
     preempt_schedule() from preempt_enable()

   - Support for the new 'SB' Speculation Barrier instruction

   - Vectorised implementation of XOR checksumming and CRC32
     optimisations

   - Workaround for Cortex-A76 erratum #1165522

   - Improved compatibility with Clang/LLD

   - Support for TX2 system PMUS for profiling the L3 cache and DMC

   - Reflect read-only permissions in the linear map by default

   - Ensure MMIO reads are ordered with subsequent calls to Xdelay()

   - Initial support for memory hotplug

   - Tweak the threshold when we invalidate the TLB by-ASID, so that
     mremap() performance is improved for ranges spanning multiple PMDs.

   - Minor refactoring and cleanups"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (125 commits)
  arm64: kaslr: print PHYS_OFFSET in dump_kernel_offset()
  arm64: sysreg: Use _BITUL() when defining register bits
  arm64: cpufeature: Rework ptr auth hwcaps using multi_entry_cap_matches
  arm64: cpufeature: Reduce number of pointer auth CPU caps from 6 to 4
  arm64: docs: document pointer authentication
  arm64: ptr auth: Move per-thread keys from thread_info to thread_struct
  arm64: enable pointer authentication
  arm64: add prctl control for resetting ptrauth keys
  arm64: perf: strip PAC when unwinding userspace
  arm64: expose user PAC bit positions via ptrace
  arm64: add basic pointer authentication support
  arm64/cpufeature: detect pointer authentication
  arm64: Don't trap host pointer auth use to EL2
  arm64/kvm: hide ptrauth from guests
  arm64/kvm: consistently handle host HCR_EL2 flags
  arm64: add pointer authentication register bits
  arm64: add comments about EC exception levels
  arm64: perf: Treat EXCLUDE_EL* bit definitions as unsigned
  arm64: kpti: Whitelist Cortex-A CPUs that don't implement the CSV3 field
  arm64: enable per-task stack canaries
  ...
2018-12-25 17:41:56 -08:00
Linus Torvalds
13e1ad2be3 Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 pti updates from Thomas Gleixner:
 "No point in speculating what's in this parcel:

   - Drop the swap storage limit when L1TF is disabled so the full space
     is available

   - Add support for the new AMD STIBP always on mitigation mode

   - Fix a bunch of STIPB typos"

* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/speculation: Add support for STIBP always-on preferred mode
  x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off
  x86/speculation: Change misspelled STIPB to STIBP
2018-12-25 16:26:42 -08:00
Linus Torvalds
9f687dddc4 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "The timer department delivers the following christmas presents:

  Core code:

   - Use proper seqcount initializer to make lockdep happy

   - SPDX annotations and cleanup of license boilerplates

   - Use DEFINE_SHOW_ATTRIBUTE() instead of open coding it

   - Minor cleanups

  Driver code:

   - Add the sched_clock for the arc timer (Alexey Brodkin)

   - Change the file timer names for riscv, rockchip, tegra20, sun4i and
     meson6 (Daniel Lezcano)

   - Add the DT bindings for r8a7796, r8a77470 and r8a774a1 (Biju Das)

   - Remove the early platform driver registration for timer-ti-dm
     (Bartosz Golaszewski)

   - Provide the sched_clock for the riscv timer (Anup Patel)

   - Add support for ARM64 for the imx-gpt and convert the imx-tpm to
     the timer-of API (Anson Huang)

   - Remove useless irq protection for the imx-gpt (Clément Péron)

   - Remove a duplicate function name for the vt8500 (Dan Carpenter)

   - Remove obsolete inclusion of <asm/smp_twd.h> for the tegra20 (Geert
     Uytterhoeven)

   - Demote the prcmu and the custom sched_clock for the dbx500 and the
     ux500 (Linus Walleij)

   - Add a new timer clock for the RDA8810PL (Manivannan Sadhasivam)

   - Rename the macro to stick to the register name and add the delay
     timer (Martin Blumenstingl)

   - Switch the bcm2835 to the SPDX identifier (Stefan Wahren)

   - Fix the interrupt register access on the fttmr010 (Tao Ren)

   - Add missing of_node_put in the initialization path on the
     integrator-ap (Yangtao Li)"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
  dt-bindings: timer: Document RDA8810PL SoC timer
  clocksource/drivers/rda: Add clock driver for RDA8810PL SoC
  clocksource/drivers/meson6: Change name meson6_timer timer-meson6
  clocksource/drivers/sun4i: Change name sun4i_timer to timer-sun4i
  clocksource/drivers/tegra20: Change name tegra20_timer to timer-tegra20
  clocksource/drivers/rockchip: Change name rockchip_timer to timer-rockchip
  clocksource/drivers/riscv: Change name riscv_timer to timer-riscv
  clocksource/drivers/riscv_timer: Provide the sched_clock
  clocksource/drivers/timer-imx-tpm: Specify clock name for timer-of
  clocksource/drivers/fttmr010: Fix invalid interrupt register access
  clocksource/drivers/integrator-ap: Add missing of_node_put()
  clocksource/drivers/bcm2835: Switch to SPDX identifier
  dt-bindings: timer: renesas, cmt: Document r8a774a1 CMT support
  clocksource/drivers/timer-imx-tpm: Convert the driver to timer-of
  clocksource/drivers/arc_timer: Utilize generic sched_clock
  dt-bindings: timer: renesas, cmt: Document r8a77470 CMT support
  dt-bindings: timer: renesas, cmt: Document r8a7796 CMT support
  clocksource/drivers/imx-gpt: Remove unnecessary irq protection
  clocksource/drivers/imx-gpt: Add support for ARM64
  clocksource/drivers/meson6_timer: Implement the ARM delay timer
  ...
2018-12-25 15:44:08 -08:00
Linus Torvalds
e4b99d415c Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "The interrupt department provides:

  Core updates:

   - Better spreading to NUMA nodes in the affinity management

   - Support for more than one set of interrupts to spread out to allow
     separate queues for separate functionality of a single device.

   - Decouple the non queue interrupts from being managed. Those are
     usually general interrupts for error handling etc. and those should
     never be shut down. This also a preparation to utilize the
     spreading mechanism for initial spreading of non-managed interrupts
     later.

   - Make the single CPU target selection in the matrix allocator more
     balanced so interrupts won't accumulate on single CPUs in certain
     situations.

   - A large spell checking patch so we don't end up fixing single typos
     over and over.

  Driver updates:

   - A bunch of new irqchip drivers (RDA8810PL, Madera, imx-irqsteer)

   - Updates for the 8MQ, F1C100s platform drivers

   - A number of SPDX cleanups

   - A workaround for a very broken GICv3 implementation on msm8996
     which sports a botched register set.

   - A platform-msi fix to prevent memory leakage

   - Various cleanups"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
  genirq/affinity: Add is_managed to struct irq_affinity_desc
  genirq/core: Introduce struct irq_affinity_desc
  genirq/affinity: Remove excess indentation
  irqchip/stm32: protect configuration registers with hwspinlock
  dt-bindings: interrupt-controller: stm32: Document hwlock properties
  irqchip: Add driver for imx-irqsteer controller
  dt-bindings/irq: Add binding for Freescale IRQSTEER multiplexer
  irqchip: Add driver for Cirrus Logic Madera codecs
  genirq: Fix various typos in comments
  irqchip/irq-imx-gpcv2: Add IRQCHIP_DECLARE for i.MX8MQ compatible
  irqchip/irq-rda-intc: Fix return value check in rda8810_intc_init()
  irqchip/irq-imx-gpcv2: Silence "fall through" warning
  irqchip/gic-v3: Add quirk for msm8996 broken registers
  irqchip/gic: Add support to device tree based quirks
  dt-bindings/gic-v3: Add msm8996 compatible string
  irqchip/sun4i: Add support for Allwinner ARMv5 F1C100s
  irqchip/sun4i: Move IC specific register offsets to struct
  irqchip/sun4i: Add a struct to hold global variables
  dt-bindings: interrupt-controller: Add suniv interrupt-controller
  irqchip: Add RDA8810PL interrupt driver
  ...
2018-12-25 15:17:51 -08:00
Linus Torvalds
d8924c0d76 Device properties framework updates for 4.21-rc1
- Introduce "software nodes", analogous to the DT and ACPI firmware
    nodes except that they can be created by kernel code, in order to
    complement fwnodes representing real firmware nodes when they are
    incomplete (for example missing device properties) and to supply
    the primary fwnode when the firmware lacks hardware description
    for a device completely, and replace the "property_set" struct
    fwnode_handle type with software nodes (Heikki Krogerus).
 
  - Clean up the just introduced software nodes support and fix a commet
    in the graph-handling code (Colin Ian King, Marco Felsch).
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Merge tag 'devprop-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties framework updates from Rafael Wysocki:
 "This introduces 'software nodes' that are analogous to the DT and ACPI
  firmware nodes except that they can be created by drivers themselves
  and do a couple of assorted cleanups.

  Specifics:

   - Introduce "software nodes", analogous to the DT and ACPI firmware
     nodes except that they can be created by kernel code, in order to
     complement fwnodes representing real firmware nodes when they are
     incomplete (for example missing device properties) and to supply
     the primary fwnode when the firmware lacks hardware description for
     a device completely, and replace the "property_set" struct
     fwnode_handle type with software nodes (Heikki Krogerus).

   - Clean up the just introduced software nodes support and fix a
     commet in the graph-handling code (Colin Ian King, Marco Felsch)"

* tag 'devprop-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  device property: fix fwnode_graph_get_next_endpoint() documentation
  drivers: base: swnode: remove need for a temporary string for the node name
  device property: Remove struct property_set
  device property: Move device_add_properties() to swnode.c
  drivers: base: Introducing software nodes to the firmware node framework
  ACPI / glue: Add acpi_platform_notify() function
  drivers core: Prepare support for multiple platform notifications
  driver core: platform: Remove duplicated device_remove_properties() call
2018-12-25 15:01:46 -08:00
Linus Torvalds
1fbb2dc6f0 This round is dominated by NXP's i.MX clk drivers. We gained support for two or
three i.MX SoCs in here and that mostly means a lot of driver code and data.
 Beyond that platform, there are some new Mediatek, Amlogic, and Qualcomm clk
 drivers added in here, and then we get to the long tail of driver updates and
 non-critical fixes all around, including code for vendors such as Renesas,
 Rockchip, Nvidia, and Allwinner. Overall, the driver updates look normal.
 
 Beyond the usual driver updates we have an update to make registering OF based
 clk providers a little simpler when they're devices created as a child of a
 device backed by a node in DT. Drivers don't have to jump through hoops to
 unregister the provider upon driver removal anymore because the API does the
 right thing and uses the parent device DT node.
 
 Core:
  - Make devm_of_clk_add_hw_provider() use parent dt node if necessary
  - Various SPDX taggings
  - Mark clk_ops const when possible
 
 New Drivers:
  - NXP i.MX7ULP SoC clock support
  - NXP i.MX8QXP SoC clock support
  - NXP i.MX8MQ SoC clock support
  - NXP QorIQ T1023 SoC support
  - Qualcomm SDM845 audio subsystem clks
  - Qualcomm SDM845 GPU clck controllers
  - Qualcomm QCS404 RPM clk support
  - Mediatek MT7629 SoC clk controllers
  - Allwinner F1c100s SoC clocks
  - Allwinner H6 display engine clocks
  - Amlogic GX video clocks
  - Support for Amlogic meson8b CPU frequency scaling
  - Amlogic Meson8b CPU post-divider clocks
 
 Updates:
  - Proper suspend/resume on VersaClock5
  - Shrink code some with DEFINE_SHOW_ATTRIBUTE()
  - Register fixes for Rockchip rk3188 and rk3328
  - One new critical clock for Rockchip rk3188 and a fixed clock id (double used number)
  - New clock id for Rockchip rk3328
  - Amlogic Meson8/Meson8b video clock support
  - Amlogic got a clk-input helper and used it for the axg-audio clock driver
  - Sigma Delta modulation for the Allwinner A33 audio clocks
  - Support for CPEX (timer) clocks on various Renesas R-Car Gen3 and RZ/G2 SoCs
  - Support for SDHI HS400 clocks on early revisions of Renesas R-Car H3 and M3-W
  - Support for SDHI and USB clocks on Renesas RZ/A2
  - Support for RPC (SPI Multi I/O Bus Controller) clocks on Renesas R-Car V3M
  - Qualcomm MSM8998 GCC driver improvements (resets, drop unused clks, etc.)
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This round is dominated by NXP's i.MX clk drivers. We gained support
  for two or three i.MX SoCs in here and that mostly means a lot of
  driver code and data.

  Beyond that platform, there are some new Mediatek, Amlogic, and
  Qualcomm clk drivers added in here, and then we get to the long tail
  of driver updates and non-critical fixes all around, including code
  for vendors such as Renesas, Rockchip, Nvidia, and Allwinner. Overall,
  the driver updates look normal.

  Apart from the usual driver updates we have an update to make
  registering OF based clk providers a little simpler when they're
  devices created as a child of a device backed by a node in DT. Drivers
  don't have to jump through hoops to unregister the provider upon
  driver removal anymore because the API does the right thing and uses
  the parent device DT node.

  Summary:

  Core:
   - Make devm_of_clk_add_hw_provider() use parent dt node if necessary
   - Various SPDX taggings
   - Mark clk_ops const when possible

  New Drivers:
   - NXP i.MX7ULP SoC clock support
   - NXP i.MX8QXP SoC clock support
   - NXP i.MX8MQ SoC clock support
   - NXP QorIQ T1023 SoC support
   - Qualcomm SDM845 audio subsystem clks
   - Qualcomm SDM845 GPU clck controllers
   - Qualcomm QCS404 RPM clk support
   - Mediatek MT7629 SoC clk controllers
   - Allwinner F1c100s SoC clocks
   - Allwinner H6 display engine clocks
   - Amlogic GX video clocks
   - Support for Amlogic meson8b CPU frequency scaling
   - Amlogic Meson8b CPU post-divider clocks

  Updates:
   - Proper suspend/resume on VersaClock5
   - Shrink code some with DEFINE_SHOW_ATTRIBUTE()
   - Register fixes for Rockchip rk3188 and rk3328
   - One new critical clock for Rockchip rk3188 and a fixed clock id
     (double used number)
   - New clock id for Rockchip rk3328
   - Amlogic Meson8/Meson8b video clock support
   - Amlogic got a clk-input helper and used it for the axg-audio clock
     driver
   - Sigma Delta modulation for the Allwinner A33 audio clocks
   - Support for CPEX (timer) clocks on various Renesas R-Car Gen3 and
     RZ/G2 SoCs
   - Support for SDHI HS400 clocks on early revisions of Renesas R-Car
     H3 and M3-W
   - Support for SDHI and USB clocks on Renesas RZ/A2
   - Support for RPC (SPI Multi I/O Bus Controller) clocks on Renesas
     R-Car V3M
   - Qualcomm MSM8998 GCC driver improvements (resets, drop unused clks,
     etc)"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (172 commits)
  clk: imx: imx7ulp: add arm hsrun mode clocks support
  dt-bindings: clock: imx7ulp: add HSRUN mode related clocks
  clk: Use of_node_name_eq for node name comparisons
  clk: vc5: Add suspend/resume support
  clk: qcom: Drop unused 8998 clock
  clk: qcom: Leave mmss noc on for 8998
  clk: tegra: Return the exact clock rate from clk_round_rate
  clk: tegra30: Use Tegra CPU powergate helper function
  soc/tegra: pmc: Drop SMP dependency from CPU APIs
  clk: tegra: Fix maximum audio sync clock for Tegra124/210
  clk: tegra: get rid of duplicate defines
  clk: imx: add imx8qxp lpcg driver
  clk: imx: add lpcg clock support
  clk: imx: add imx8qxp clk driver
  clk: imx: Make the i.MX8MQ CCM clock driver CLK_IMX8MQ dependant
  clk: imx: add scu clock common part
  clk: imx: add configuration option for mmio clks
  dt-bindings: clock: add imx8qxp lpcg clock binding
  dt-bindings: clock: imx8qxp: add SCU clock IDs
  clk: qcom: Add missing msm8998 resets
  ...
2018-12-25 14:57:37 -08:00
Linus Torvalds
4e4390ad06 LEDs for 4.21-rc1
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 -----END PGP SIGNATURE-----

Merge tag 'leds-for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED updates from Jacek Anaszewski:
 "There are several few-liners, where most of them are fixes and
  improvments. One thing standing out is ground preparation for
  inititializing trigger parameters via Device Tree.

  We introduce LED_INIT_DEFAULT_TRIGGER flag for that purpose and set it
  when default trigger is matched. It indicates that trigger should
  parse DT properties to retrieve the initialization data when set as
  default one"

* tag 'leds-for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
  led: triggers: Initialize LED_INIT_DEFAULT_TRIGGER if trigger is brought after class
  led: triggers: Add LED_INIT_DEFAULT_TRIGGER flag
  led: triggers: Break the for loop after default trigger is found
  leds: pwm: Use OF variant of LED registering function
  leds: pwm: Simplify with resource-managed devm_led_classdev_register()
  leds: gpio: Drop unneeded manual of_node assignment
  leds: 88pm860x: Use of_node_name_eq for node name comparisons
  leds: powernv: add of_node_put()
2018-12-25 14:52:50 -08:00
Linus Torvalds
b1669432b3 regmap: Updates for v4.21
This has been a busy release for the regmap-irq code, there's several
 new features been added, including an API cleanup for how we specify
 types that affected one existing driver (gpio-max77620):
 
  - Support for hardware that flags rising and falling edges on separate
    status bits from Bartosz Golaszewski.
  - Support for explicitly clearing interrupts before unmasking from
    Bartosz Golaszewski.
  - Support for level triggered IRQs from Matti Vaittinen.
 -----BEGIN PGP SIGNATURE-----
 
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Merge tag 'regmap-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "This has been a busy release for the regmap-irq code, there's several
  new features been added, including an API cleanup for how we specify
  types that affected one existing driver (gpio-max77620):

   - Support for hardware that flags rising and falling edges on
     separate status bits from Bartosz Golaszewski.

   - Support for explicitly clearing interrupts before unmasking from
     Bartosz Golaszewski.

   - Support for level triggered IRQs from Matti Vaittinen"

* tag 'regmap-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: irq: add an option to clear status registers on unmask
  regmap: regmap-irq/gpio-max77620: add level-irq support
  regmap: regmap-irq: Remove default irq type setting from core
  regmap: debugfs: convert to DEFINE_SHOW_ATTRIBUTE
  regmap: rbtree: convert to DEFINE_SHOW_ATTRIBUTE
  regmap: irq: handle HW using separate rising/falling edge interrupts
  regmap: add a new macro:REGMAP_IRQ_REG_LINE(_id, _reg_bits)
2018-12-25 14:48:06 -08:00
Linus Torvalds
0051db8218 spi: Updates for v4.21
The main thing this release has been a lot of work on the integration
 with SPI NOR flashes, there's been some specific support for a while for
 controller features designed to make them perform better but it's not
 worked out as well as hoped so the interface has been redesigned in a
 way that will hopefully do better - it's already been adopted by a
 number of additional controllers so things are looking good.  Otherwise
 most of the work has been driver specific:
 
  - Support for better integration with NOR flashes from Boris Brezillon
    and Yogesh Narayan Gaur plus usage of it in several drivers.
  - A big cleanup of the Rockchip driver from Emil Renner Berthing.
  - Lots of performance improvements for bcm2835 from Lukas Wunner.
  - Slave mode support for pxa2xx from Lubomir Rintel.
  - Support for Macronix MXIC, Mediatek MT7629 and MT8183, NPCM PSPI,
    and Renesas r8a77470.
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Merge tag 'spi-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "The main thing this release has been a lot of work on the integration
  with SPI NOR flashes, there's been some specific support for a while
  for controller features designed to make them perform better but it's
  not worked out as well as hoped so the interface has been redesigned
  in a way that will hopefully do better - it's already been adopted by
  a number of additional controllers so things are looking good.

  Otherwise most of the work has been driver specific:

   - Support for better integration with NOR flashes from Boris
     Brezillon and Yogesh Narayan Gaur plus usage of it in several
     drivers.

   - A big cleanup of the Rockchip driver from Emil Renner Berthing.

   - Lots of performance improvements for bcm2835 from Lukas Wunner.

   - Slave mode support for pxa2xx from Lubomir Rintel.

   - Support for Macronix MXIC, Mediatek MT7629 and MT8183, NPCM PSPI,
     and Renesas r8a77470"

* tag 'spi-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (90 commits)
  spi: sh-msiof: Reduce the number of times write to and perform the transmission from FIFO
  spi: sh-msiof: Add r8a774c0 support
  doc: lpspi: Document DT bindings for LPSPI slave mode
  spi: lpspi: Let watermark change with send data length
  spi: lpspi: Add slave mode support
  spi: lpspi: Replace all "master" with "controller"
  spi: imx: drop useless member speed_hz from driver data struct
  spi: imx: rename config callback and add useful parameters
  spi: imx: style fixes
  spi: imx: mx51-ecspi: Move some initialisation to prepare_message hook.
  spi: imx: add a device specific prepare_message callback
  mtd: atmel-quadspi: disallow building on ebsa110
  spi: Update NPCM PSPI controller documentation
  spi: npcm: Modify pspi send function
  spi: Use of_node_name_eq for node name comparisons
  spi: dw-mmio: add ACPI support
  spi: bcm2835: Synchronize with callback on DMA termination
  spi: bcm2835: Speed up FIFO access if fill level is known
  spi: bcm2835: Polish transfer of DMA prologue
  spi: spi-mem: add support for octal mode I/O data transfer
  ...
2018-12-25 14:43:54 -08:00
Linus Torvalds
79f20778fb regulator: Updates for v4.20
This has been a very busy release for the core, some fixes, one large new
 feature and a big bit of refactoring to update the GPIO API:
 
  - Support for coupled regulators from Dmitry Osipenko based on a prior
    attempt by Maciej Purski, allowing us to handle situations where the
    voltages on two regulators can't be too far apart from each other.
  - Conversion of the GPIO support in both drivers and the core to use
    GPIO descriptors rather than numbers, part of the overall project to
    remove GPIO numbers.
  - Support for standby mode suspend states from Andrei Stefanescu.
  - New drivers for Allwinner AXP209, Cirrus Logic Lochnagar and
    Microchip MPC16502.
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Merge tag 'regulator-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This has been a very busy release for the core, some fixes, one large
  new feature and a big bit of refactoring to update the GPIO API:

   - Support for coupled regulators from Dmitry Osipenko based on a
     prior attempt by Maciej Purski, allowing us to handle situations
     where the voltages on two regulators can't be too far apart from
     each other.

   - Conversion of the GPIO support in both drivers and the core to use
     GPIO descriptors rather than numbers, part of the overall project
     to remove GPIO numbers.

   - Support for standby mode suspend states from Andrei Stefanescu.

   - New drivers for Allwinner AXP209, Cirrus Logic Lochnagar and
     Microchip MPC16502"

* tag 'regulator-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (90 commits)
  regulator: tps65910: fix a missing check of return value
  regulator: mcp16502: Select REGMAP_I2C to fix build error
  regulator: convert to DEFINE_SHOW_ATTRIBUTE
  regulator: mcp16502: Fix missing n_voltages setting
  regulator: mcp16502: Use #ifdef CONFIG_PM_SLEEP around mcp16502_suspend/resume_noirq
  regulator: mcp16502: code cleanup
  regulator: act8945a-regulator: make symbol act8945a_pm static
  drivers/regulator: fix a missing check of return value
  regulator: act8945a-regulator: fix 'defined but not used' compiler warning
  regulator: axp20x: fix set_ramp_delay for AXP209/dcdc2
  regulator: mcp16502: add support for suspend
  mfd: axp20x: use explicit bit defines
  mfd: axp20x: Clean up included headers
  regulator: dts: enable soft-start and ramp delay for the OLinuXino Lime2
  dt-bindings: mfd: axp20x: Add software based soft_start for AXP209 LDO3
  regulator: axp20x: add software based soft_start for AXP209 LDO3
  dt-bindings: mfd: axp20x: add support for regulator-ramp-delay for AXP209
  regulator: axp20x: add support for set_ramp_delay for AXP209
  mfd: axp20x: name voltage ramping define properly
  regulator: mcp16502: add regulator driver for MCP16502
  ...
2018-12-25 14:38:31 -08:00
Linus Torvalds
d923fd6dc1 pwm: Changes for v4.21-rc1
Not a lot going on this cycle. There's some more cleanup going on and
 new driver support that was not quite ready in time for v4.21-rc1, but
 here are a few fixes and improvements that are good to go. The Kona PWM
 driver can now be built on the Cygnus architecture and the i.MX driver
 gained support for hardware readback. Some small fixes are provided for
 the clks711x and lpc18xx-sct drivers. Finally, to round things off some
 drivers are switched to SPDX license identifiers.
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Merge tag 'pwm/for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "Not a lot going on this cycle.

  There's some more cleanup going on and new driver support that was not
  quite ready in time for v4.21-rc1, but here are a few fixes and
  improvements that are good to go.

  The Kona PWM driver can now be built on the Cygnus architecture and
  the i.MX driver gained support for hardware readback. Some small fixes
  are provided for the clks711x and lpc18xx-sct drivers.

  Finally, to round things off some drivers are switched to SPDX license
  identifiers"

* tag 'pwm/for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  dt-bindings: pwm: rcar: Add r8a774c0 support
  pwm: imx: Add ipg clock operation
  pwm: clps711x: Switch to SPDX identifier
  pwm: clps711x: Fix period calculation
  pwm: bcm2835: Switch to SPDX identifier
  pwm: Enable Kona PWM to be built for the Cygnus architecture
  pwm: Drop legacy wrapper for changing polarity
  pwm: imx: Implement get_state() function for hardware readout
  pwm: imx: Use bitops and bitfield macros to define register values
  pwm: imx: Sort include files
  pwm: lpc18xx-sct: Don't reconfigure PWM in .request and .free
2018-12-25 14:34:48 -08:00
Linus Torvalds
e6d1315006 ACPI updates for 4.21-rc1
- Update the ACPICA code in the kernel to the 20181213 upstream
    revision including:
    * New Windows _OSI strings (Bob Moore, Jung-uk Kim).
    * Buffers-to-string conversions update (Bob Moore).
    * Removal of support for expressions in package elements (Bob
      Moore).
    * New option to display method/object evaluation in debug output
      (Bob Moore).
    * Compiler improvements (Bob Moore, Erik Schmauss).
    * Minor debugger fix (Erik Schmauss).
    * Disassembler improvement (Erik Schmauss).
    * Assorted cleanups (Bob Moore, Colin Ian King, Erik Schmauss).
 
  - Add support for a new OEM _OSI string to indicate special handling
    of secondary graphics adapters on some systems (Alex Hung).
 
  - Make it possible to build the ACPI subystem without PCI support
    (Sinan Kaya).
 
  - Make the SPCR table handling regard baud rate 0 in accordance with
    the specification of it and make the DSDT override code support
    DSDT code names generated by recent ACPICA (Andy Shevchenko, Wang
    Dongsheng, Nathan Chancellor).
 
  - Add clock frequency for Hisilicon Hip08 SPI controller to the ACPI
    driver for AMD SoCs (APD) (Jay Fang).
 
  - Fix the PM handling during device init in the ACPI driver for
    Intel SoCs (LPSS) (Hans de Goede).
 
  - Avoid double panic()s by clearing the APEI GHES block_status
    before panic() (Lenny Szubowicz).
 
  - Clean up a function invocation in the ACPI core and get rid of
    some code duplication by using the DEFINE_SHOW_ATTRIBUTE macro
    in the APEI support code (Alexey Dobriyan, Yangtao Li).
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Merge tag 'acpi-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to the 20181213 upstream
  revision, make it possible to build the ACPI subsystem without PCI
  support, and a new OEM _OSI string, add a new device support to the
  ACPI driver for AMD SoCs and fix PM handling in the ACPI driver for
  Intel SoCs, fix the SPCR table handling and do some assorted fixes and
  cleanups.

  Specifics:

   - Update the ACPICA code in the kernel to the 20181213 upstream
     revision including:
      * New Windows _OSI strings (Bob Moore, Jung-uk Kim).
      * Buffers-to-string conversions update (Bob Moore).
      * Removal of support for expressions in package elements (Bob
        Moore).
      * New option to display method/object evaluation in debug output
        (Bob Moore).
      * Compiler improvements (Bob Moore, Erik Schmauss).
      * Minor debugger fix (Erik Schmauss).
      * Disassembler improvement (Erik Schmauss).
      * Assorted cleanups (Bob Moore, Colin Ian King, Erik Schmauss).

   - Add support for a new OEM _OSI string to indicate special handling
     of secondary graphics adapters on some systems (Alex Hung).

   - Make it possible to build the ACPI subystem without PCI support
     (Sinan Kaya).

   - Make the SPCR table handling regard baud rate 0 in accordance with
     the specification of it and make the DSDT override code support
     DSDT code names generated by recent ACPICA (Andy Shevchenko, Wang
     Dongsheng, Nathan Chancellor).

   - Add clock frequency for Hisilicon Hip08 SPI controller to the ACPI
     driver for AMD SoCs (APD) (Jay Fang).

   - Fix the PM handling during device init in the ACPI driver for Intel
     SoCs (LPSS) (Hans de Goede).

   - Avoid double panic()s by clearing the APEI GHES block_status before
     panic() (Lenny Szubowicz).

   - Clean up a function invocation in the ACPI core and get rid of some
     code duplication by using the DEFINE_SHOW_ATTRIBUTE macro in the
     APEI support code (Alexey Dobriyan, Yangtao Li)"

* tag 'acpi-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (31 commits)
  ACPI / tables: Add an ifdef around amlcode and dsdt_amlcode
  ACPI/APEI: Clear GHES block_status before panic()
  ACPI: Make PCI slot detection driver depend on PCI
  ACPI/IORT: Stub out ACS functions when CONFIG_PCI is not set
  arm64: select ACPI PCI code only when both features are enabled
  PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set
  ACPICA: Remove PCI bits from ACPICA when CONFIG_PCI is unset
  ACPI: Allow CONFIG_PCI to be unset for reboot
  ACPI: Move PCI reset to a separate function
  ACPI / OSI: Add OEM _OSI string to enable dGPU direct output
  ACPI / tables: add DSDT AmlCode new declaration name support
  ACPICA: Update version to 20181213
  ACPICA: change coding style to match ACPICA, no functional change
  ACPICA: Debug output: Add option to display method/object evaluation
  ACPICA: disassembler: disassemble OEMx tables as AML
  ACPICA: Add "Windows 2018.2" string in the _OSI support
  ACPICA: Expressions in package elements are not supported
  ACPICA: Update buffer-to-string conversions
  ACPICA: add comments, no functional change
  ACPICA: Remove defines that use deprecated flag
  ...
2018-12-25 14:21:18 -08:00
Linus Torvalds
1e2af254ef Power management updates for 4.21-rc1
- Add sysadmin documentation for cpuidle (Rafael Wysocki).
 
  - Make it possible to specify a cpuidle governor from kernel
    command line, add new cpuidle state sysfs attributes for
    governor evaluation, and improve the "polling" idle state
    handling (Rafael Wysocki).
 
  - Fix the handling of the "required-opps" DT property in the
    operating performance points (OPP) framework, improve the
    integration of it with the generic power domains (genpd)
    framework, improve the handling of performance states in
    them and clean up the idle states vs performance states
    separation in genpd (Viresh Kumar, Ulf Hansson).
 
  - Add a cpufreq driver called "qcom-hw" for Qualcomm SoCs using
    a hardware engine to control CPU frequency transitions along
    with DT bindings for it (Taniya Das).
 
  - Fix an intel_pstate driver issue related to CPU offline and
    update the documentation of it (Srinivas Pandruvada).
 
  - Clean up the imx6q cpufreq driver (Anson Huang).
 
  - Add SPDX license IDs to cpufreq schedutil governor files (Daniel
    Lezcano).
 
  - Switch over the runtime PM framework to using high-res timers
    for device autosuspend to allow the control of it to be more
    precise (Vincent Guittot).
 
  - Disable non-wakeup ACPI GPEs during suspend-to-idle so that they
    don't prevent the system from reaching the target low-power state
    and simplify the suspend-to-idle handling on ACPI platforms
    without full Low-Power S0 Idle (LPS0) support (Rafael Wysocki).
 
  - Add system-wide suspend and resume support to the devfreq
    framework (Lukasz Luba).
 
  - Clean up the SmartReflex adaptive voltage scaling (AVS) driver and
    add an SPDX license ID to it (Nishanth Menon, Uwe Kleine-König,
    Thomas Meyer).
 
  - Get rid of code duplication by using the DEFINE_SHOW_ATTRIBUTE
    macro in some places, fix some DT node refcount leaks, and do
    some other janitorial cleanups (Yangtao Li).
 
  - Update the cpupower, intel_pstate_tracer and turbosat utilities
    (Abhishek Goel, Doug Smythies, Len Brown).
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Merge tag 'pm-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These add sysadmin documentation for cpuidle, extend the cpuidle
  subsystem somewhat, improve the handling of performance states in the
  generic power domains (genpd) and operating performance points (OPP)
  frameworks, add a new cpufreq driver for Qualcomm SoCs, update some
  other cpufreq drivers, switch over the runtime PM framework to using
  high-res timers for device autosuspend, fix a problem with
  suspend-to-idle on ACPI-based platforms, add system-wide suspend and
  resume handling to the devfreq framework, do some janitorial cleanups
  all over and update some utilities.

  Specifics:

   - Add sysadmin documentation for cpuidle (Rafael Wysocki).

   - Make it possible to specify a cpuidle governor from kernel command
     line, add new cpuidle state sysfs attributes for governor
     evaluation, and improve the "polling" idle state handling (Rafael
     Wysocki).

   - Fix the handling of the "required-opps" DT property in the
     operating performance points (OPP) framework, improve the
     integration of it with the generic power domains (genpd) framework,
     improve the handling of performance states in them and clean up the
     idle states vs performance states separation in genpd (Viresh
     Kumar, Ulf Hansson).

   - Add a cpufreq driver called "qcom-hw" for Qualcomm SoCs using a
     hardware engine to control CPU frequency transitions along with DT
     bindings for it (Taniya Das).

   - Fix an intel_pstate driver issue related to CPU offline and update
     the documentation of it (Srinivas Pandruvada).

   - Clean up the imx6q cpufreq driver (Anson Huang).

   - Add SPDX license IDs to cpufreq schedutil governor files (Daniel
     Lezcano).

   - Switch over the runtime PM framework to using high-res timers for
     device autosuspend to allow the control of it to be more precise
     (Vincent Guittot).

   - Disable non-wakeup ACPI GPEs during suspend-to-idle so that they
     don't prevent the system from reaching the target low-power state
     and simplify the suspend-to-idle handling on ACPI platforms without
     full Low-Power S0 Idle (LPS0) support (Rafael Wysocki).

   - Add system-wide suspend and resume support to the devfreq framework
     (Lukasz Luba).

   - Clean up the SmartReflex adaptive voltage scaling (AVS) driver and
     add an SPDX license ID to it (Nishanth Menon, Uwe Kleine-König,
     Thomas Meyer).

   - Get rid of code duplication by using the DEFINE_SHOW_ATTRIBUTE
     macro in some places, fix some DT node refcount leaks, and do some
     other janitorial cleanups (Yangtao Li).

   - Update the cpupower, intel_pstate_tracer and turbosat utilities
     (Abhishek Goel, Doug Smythies, Len Brown)"

* tag 'pm-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (54 commits)
  PM / Domains: remove define_genpd_open_function() and define_genpd_debugfs_fops()
  PM-runtime: Switch autosuspend over to using hrtimers
  cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver
  dt-bindings: cpufreq: Introduce QCOM cpufreq firmware bindings
  ACPI: PM: Loop in full LPS0 mode only
  ACPI: EC / PM: Disable non-wakeup GPEs for suspend-to-idle
  tools/power/x86/intel_pstate_tracer: Fix non root execution for post processing a trace file
  tools/power turbostat: consolidate duplicate model numbers
  tools/power turbostat: fix goldmont C-state limit decoding
  PM / Domains: Propagate performance state updates
  PM / Domains: Factorize dev_pm_genpd_set_performance_state()
  PM / Domains: Save OPP table pointer in genpd
  OPP: Don't return 0 on error from of_get_required_opp_performance_state()
  OPP: Add dev_pm_opp_xlate_performance_state() helper
  OPP: Improve _find_table_of_opp_np()
  PM / Domains: Make genpd performance states orthogonal to the idlestates
  PM / sleep: convert to DEFINE_SHOW_ATTRIBUTE
  cpuidle: Add 'above' and 'below' idle state metrics
  PM / AVS: SmartReflex: Switch to SPDX Licence ID
  PM / AVS: SmartReflex: NULL check before some freeing functions is not needed
  ...
2018-12-25 13:47:41 -08:00