Commit Graph

9347 Commits

Author SHA1 Message Date
David S. Miller
ec7146db15 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2019-01-29

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Teach verifier dead code removal, this also allows for optimizing /
   removing conditional branches around dead code and to shrink the
   resulting image. Code store constrained architectures like nfp would
   have hard time doing this at JIT level, from Jakub.

2) Add JMP32 instructions to BPF ISA in order to allow for optimizing
   code generation for 32-bit sub-registers. Evaluation shows that this
   can result in code reduction of ~5-20% compared to 64 bit-only code
   generation. Also add implementation for most JITs, from Jiong.

3) Add support for __int128 types in BTF which is also needed for
   vmlinux's BTF conversion to work, from Yonghong.

4) Add a new command to bpftool in order to dump a list of BPF-related
   parameters from the system or for a specific network device e.g. in
   terms of available prog/map types or helper functions, from Quentin.

5) Add AF_XDP sock_diag interface for querying sockets from user
   space which provides information about the RX/TX/fill/completion
   rings, umem, memory usage etc, from Björn.

6) Add skb context access for skb_shared_info->gso_segs field, from Eric.

7) Add support for testing flow dissector BPF programs by extending
   existing BPF_PROG_TEST_RUN infrastructure, from Stanislav.

8) Split BPF kselftest's test_verifier into various subgroups of tests
   in order better deal with merge conflicts in this area, from Jakub.

9) Add support for queue/stack manipulations in bpftool, from Stanislav.

10) Document BTF, from Yonghong.

11) Dump supported ELF section names in libbpf on program load
    failure, from Taeung.

12) Silence a false positive compiler warning in verifier's BTF
    handling, from Peter.

13) Fix help string in bpftool's feature probing, from Prashant.

14) Remove duplicate includes in BPF kselftests, from Yue.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-28 19:38:33 -08:00
Jiong Wang
654b65a048 arm64: bpf: implement jitting of JMP32
This patch implements code-gen for new JMP32 instructions on arm64.

Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Zi Shen Lim <zlim.lnx@gmail.com>

Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-01-26 13:33:02 -08:00
Christoph Hellwig
60d8cd572f arm64/xen: fix xen-swiotlb cache flushing
Xen-swiotlb hooks into the arm/arm64 arch code through a copy of the DMA
DMA mapping operations stored in the struct device arch data.

Switching arm64 to use the direct calls for the merged DMA direct /
swiotlb code broke this scheme.  Replace the indirect calls with
direct-calls in xen-swiotlb as well to fix this problem.

Fixes: 356da6d0cd ("dma-mapping: bypass indirect calls for dma-direct")
Reported-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2019-01-23 22:14:56 +01:00
Andrey Konovalov
7fa1e2e6af kasan, arm64: remove redundant ARCH_SLAB_MINALIGN define
Defining ARCH_SLAB_MINALIGN in arch/arm64/include/asm/cache.h when KASAN
is off is not needed, as it is defined in defined in include/linux/slab.h
as ifndef.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-16 12:09:11 +00:00
Ard Biesheuvel
1598ecda7b arm64: kaslr: ensure randomized quantities are clean to the PoC
kaslr_early_init() is called with the kernel mapped at its
link time offset, and if it returns with a non-zero offset,
the kernel is unmapped and remapped again at the randomized
offset.

During its execution, kaslr_early_init() also randomizes the
base of the module region and of the linear mapping of DRAM,
and sets two variables accordingly. However, since these
variables are assigned with the caches on, they may get lost
during the cache maintenance that occurs when unmapping and
remapping the kernel, so ensure that these values are cleaned
to the PoC.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Fixes: f80fb3a3d5 ("arm64: add support for kernel ASLR")
Cc: <stable@vger.kernel.org> # v4.6+
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-16 12:00:46 +00:00
James Morse
2f97967503 arm64: kpti: Update arm64_kernel_use_ng_mappings() when forced on
Since commit b89d82ef01 ("arm64: kpti: Avoid rewriting early page
tables when KASLR is enabled"), a kernel built with CONFIG_RANDOMIZE_BASE
can decide early whether to use non-global mappings by checking the
kaslr_offset().

A kernel built without CONFIG_RANDOMIZE_BASE, instead checks the
cpufeature static-key.

This leaves a gap where CONFIG_RANDOMIZE_BASE was enabled, no
kaslr seed was provided, but kpti was forced on using the cmdline
option.

When the decision is made late, kpti_install_ng_mappings() will re-write
the page tables, but arm64_kernel_use_ng_mappings()'s value does not
change as it only tests the cpufeature static-key if
CONFIG_RANDOMIZE_BASE is disabled.
This function influences PROT_DEFAULT via PTE_MAYBE_NG, and causes
pgattr_change_is_safe() to catch nG->G transitions when the unchanged
PROT_DEFAULT is used as part of PAGE_KERNEL_RO:
[    1.942255] alternatives: patching kernel code
[    1.998288] ------------[ cut here ]------------
[    2.000693] kernel BUG at arch/arm64/mm/mmu.c:165!
[    2.019215] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[    2.020257] Modules linked in:
[    2.020807] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.0.0-rc2 #51
[    2.021917] Hardware name: linux,dummy-virt (DT)
[    2.022790] pstate: 40000005 (nZcv daif -PAN -UAO)
[    2.023742] pc : __create_pgd_mapping+0x508/0x6d0
[    2.024671] lr : __create_pgd_mapping+0x500/0x6d0

[    2.058059] Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____))
[    2.059369] Call trace:
[    2.059845]  __create_pgd_mapping+0x508/0x6d0
[    2.060684]  update_mapping_prot+0x48/0xd0
[    2.061477]  mark_linear_text_alias_ro+0xdc/0xe4
[    2.070502]  smp_cpus_done+0x90/0x98
[    2.071216]  smp_init+0x100/0x114
[    2.071878]  kernel_init_freeable+0xd4/0x220
[    2.072750]  kernel_init+0x10/0x100
[    2.073455]  ret_from_fork+0x10/0x18

[    2.075414] ---[ end trace 3572f3a7782292de ]---
[    2.076389] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

If arm64_kernel_unmapped_at_el0() is true, arm64_kernel_use_ng_mappings()
should also be true.

Signed-off-by: James Morse <james.morse@arm.com>
CC: Ard Biesheuvel <ard.biesheuvel@linaro.org>
CC: John Garry <john.garry@huawei.com>
CC: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-16 11:55:11 +00:00
Linus Torvalds
dbc3c09b81 ARM: SoC fixes
A bigger batch than I anticipated this week, for two reasons:
 
  - Some fallout on Davinci from board file -> DTB conversion, that also
  includes a few longer-standing fixes (i.e. not recent regressions).
 
  - drivers/reset material that has been in linux-next for a while, but
  didn't get sent to us until now for a variety of reasons (maintainer out
  sick, holidays, etc). There's a functional dependency in there such that
  one platform (Altera's SoCFPGA) won't boot without one of the patches;
  instead of reverting the patch that got merged, I looked at this set
  and decided it was small enough that I'll pick it up anyway. If you
  disagree I can revisit with a smaller set.
 
 That being said, there's also a handful of the usual stuff:
 
  - Fix for a crash on Armada 7K/8K when the kernel touches PSCI-reserved
  memory
  - Fix for PCIe reset on Macchiatobin (Armada 8K development board, what
  this email is sent from in fact :)
  - Enable a few new-merged modules for Amlogic in arm64 defconfig
  - Error path fixes on Integrator
  - Build fix for Renesas and Qualcomm
  - Initialization fix for Renesas RZ/G2E
 
  + A few more fixlets.
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCAAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAlw7hv0PHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx3rrYP/ixwKcLu9mEW9pbTmQw9m/vAGRgah4b+prT2
 KNWfphwPEfFjzEE1zNwnELEJMip3Sq0s9vEbju6VHeaUeLBfGQl7160HtLK7isHX
 nnJOgz0r1jDJbXmbijbcQEYLagnxV6bwh30skCx/HjUGd/IgTAsFJ2zXtaQNob2u
 QAlCp7E21eVleNnoRkU+tGys+8+JooS6QXzi3hhvqnwQAuAMRAa05C36jtYPnNcg
 jpLtBcxgtngHprqxfNCNpsiAsacWL1K62B3atY77+wl0Fv25pH0q67e+YAtaXLDP
 iRd79pmZ803C8guAAUantxjRWoog4wCf1o97EEMpqfeY0Q4bdUAgn3+ZCG+rYTIW
 tQFm8KqYvdo29Aub6ytNnhC+VzYLCrApDkEhBKEq92J2weBvq0cnw3JmGsTeeiWX
 uS6ittI6VAQOXzgZ5uOrnLFlpqgGb9BZt8aCzXzwbffApNVj6CUtuYXTE4PJNLB1
 yeO7IIrCXupTnJklNUrveWjfNhs2bJ6RN2OgifDhxEZBDd8PH9JJKmRfi/mSo7u+
 5O1d2UoeL6NFKDlaqvEy5mzgD2z0dA5VEcnY663khu0UxRpp8Vm1z5D+Ay/23D6W
 BrF1GVafcrX374tgqKF78k+z++WRuqE7ThhHR0SQQpM9I+3CYdl6BlqghwqN2P5a
 bhm5RFIK
 =qjfZ
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A bigger batch than I anticipated this week, for two reasons:

   - Some fallout on Davinci from board file -> DTB conversion, that
     also includes a few longer-standing fixes (i.e. not recent
     regressions).

   - drivers/reset material that has been in linux-next for a while, but
     didn't get sent to us until now for a variety of reasons
     (maintainer out sick, holidays, etc). There's a functional
     dependency in there such that one platform (Altera's SoCFPGA) won't
     boot without one of the patches; instead of reverting the patch
     that got merged, I looked at this set and decided it was small
     enough that I'll pick it up anyway. If you disagree I can revisit
     with a smaller set.

  That being said, there's also a handful of the usual stuff:

   - Fix for a crash on Armada 7K/8K when the kernel touches
     PSCI-reserved memory

   - Fix for PCIe reset on Macchiatobin (Armada 8K development board,
     what this email is sent from in fact :)

   - Enable a few new-merged modules for Amlogic in arm64 defconfig

   - Error path fixes on Integrator

   - Build fix for Renesas and Qualcomm

   - Initialization fix for Renesas RZ/G2E

  .. plus a few more fixlets"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
  ARM: integrator: impd1: use struct_size() in devm_kzalloc()
  qcom-scm: Include <linux/err.h> header
  gpio: pl061: handle failed allocations
  ARM: dts: kirkwood: Fix polarity of GPIO fan lines
  arm64: dts: marvell: mcbin: fix PCIe reset signal
  arm64: dts: marvell: armada-ap806: reserve PSCI area
  ARM: dts: da850-lcdk: Correct the sound card name
  ARM: dts: da850-lcdk: Correct the audio codec regulators
  ARM: dts: da850-evm: Correct the sound card name
  ARM: dts: da850-evm: Correct the audio codec regulators
  ARM: davinci: omapl138-hawk: fix label names in GPIO lookup entries
  ARM: davinci: dm644x-evm: fix label names in GPIO lookup entries
  ARM: davinci: dm355-evm: fix label names in GPIO lookup entries
  ARM: davinci: da850-evm: fix label names in GPIO lookup entries
  ARM: davinci: da830-evm: fix label names in GPIO lookup entries
  arm64: defconfig: enable modules for amlogic s400 sound card
  reset: uniphier-glue: Add AHCI reset control support in glue layer
  dt-bindings: reset: uniphier: Add AHCI core reset description
  reset: uniphier-usb3: Rename to reset-uniphier-glue
  dt-bindings: reset: uniphier: Replace the expression of USB3 with generic peripherals
  ...
2019-01-14 10:34:14 +12:00
Olof Johansson
56acb3ef76 mvebu fixes for 5.0
They are all device tree fixes which also worth being in stable:
 
  - Reserve PSCI area on Armada 7K/8K preventing the kernel accessing
    this area and crashing while doing it.
 
  - Use correct PCIe reset signal on MACCHIATOBin  (Armada 8040 based)
 
  - Fix polarity of GPIO fan line D-Link DNS NASes(kikwood based)
 -----BEGIN PGP SIGNATURE-----
 
 iF0EABECAB0WIQQYqXDMF3cvSLY+g9cLBhiOFHI71QUCXDjK7AAKCRALBhiOFHI7
 1eZfAJ0X/MrjG/MB1NSlJ2kUGmBs5MnnswCdFZpNF4okkjtwyWoCoBsp9X3kUkw=
 =vYNz
 -----END PGP SIGNATURE-----

Merge tag 'mvebu-fixes-5.0-1' of git://git.infradead.org/linux-mvebu into fixes

mvebu fixes for 5.0

They are all device tree fixes which also worth being in stable:

 - Reserve PSCI area on Armada 7K/8K preventing the kernel accessing
   this area and crashing while doing it.

 - Use correct PCIe reset signal on MACCHIATOBin  (Armada 8040 based)

 - Fix polarity of GPIO fan line D-Link DNS NASes(kikwood based)

* tag 'mvebu-fixes-5.0-1' of git://git.infradead.org/linux-mvebu:
  ARM: dts: kirkwood: Fix polarity of GPIO fan lines
  arm64: dts: marvell: mcbin: fix PCIe reset signal
  arm64: dts: marvell: armada-ap806: reserve PSCI area

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-01-12 22:03:59 -08:00
Linus Torvalds
c3405d6899 arm64 fixes for -rc2
- Don't error in kexec_file_load if kaslr-seed is missing in device-tree
 
 - Fix incorrect argument type passed to iort_match_node_callback()
 
 - Fix IORT build failure when CONFIG_IOMMU_API=n
 
 - Fix kpti performance regression with new rodata default option
 
 - Typo fix
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAlw4mMwACgkQt6xw3ITB
 YzSPoAf8Ci2O+LAhPHKgbGRCPuM3TCl69zYKD0I3OHbLXOpGk0ykWvYxOPkCHipr
 DpilFzWXyr0bUjg8GtsUAFlfPuzSCj/UpreRIN6o0+AEHZ5t1RTqxfRaSah5V7Df
 mDMlvPw8qS05ieIPwz0AOrR/ZxODqWeu9GaiWRbSx2ZH9/e2YL1dnHfcZ+77CsWZ
 Wdb99aVT5UcLbPmAtj/0hs+o6NekjwGt70JCBytXP6lJM/Hh7SeNNjJPNnKvisag
 GYHg/Vn5uA37/80iLkXq5J/pu1mrDqEZO1/KfZcmQ1umnCm2CLJNKDoJc3kGLVhT
 wZYv8TLY0i42fJ2m03yp8v8lKf/29w==
 =9NUe
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Another handful of arm64 fixes here. Most of the complication comes
  from improving our kpti code to avoid lengthy pauses (30+ seconds)
  during boot when we rewrite the page tables. There are also a couple
  of IORT fixes that came in via Lorenzo.

  Summary:

   - Don't error in kexec_file_load if kaslr-seed is missing in
     device-tree

   - Fix incorrect argument type passed to iort_match_node_callback()

   - Fix IORT build failure when CONFIG_IOMMU_API=n

   - Fix kpti performance regression with new rodata default option

   - Typo fix"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: kexec_file: return successfully even if kaslr-seed doesn't exist
  ACPI/IORT: Fix rc_dma_get_range()
  arm64: kpti: Avoid rewriting early page tables when KASLR is enabled
  arm64: asm-prototypes: Fix fat-fingered typo in comment
  ACPI/IORT: Fix build when CONFIG_IOMMU_API=n
2019-01-11 12:25:40 -08:00
AKASHI Takahiro
279667212a arm64: kexec_file: return successfully even if kaslr-seed doesn't exist
In kexec_file_load, kaslr-seed property of the current dtb will be deleted
any way before setting a new value if possible. It doesn't matter whether
it exists in the current dtb.

So "ret" should be reset to 0 here.

Fixes: commit 884143f60c ("arm64: kexec_file: add kaslr support")
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-11 10:10:51 +00:00
Will Deacon
b89d82ef01 arm64: kpti: Avoid rewriting early page tables when KASLR is enabled
A side effect of commit c55191e96c ("arm64: mm: apply r/o permissions
of VM areas to its linear alias as well") is that the linear map is
created with page granularity, which means that transitioning the early
page table from global to non-global mappings when enabling kpti can
take a significant amount of time during boot.

Given that most CPU implementations do not require kpti, this mainly
impacts KASLR builds where kpti is forcefully enabled. However, in these
situations we know early on that non-global mappings are required and
can avoid the use of global mappings from the beginning. The only gotcha
is Cavium erratum #27456, which we must detect based on the MIDR value
of the boot CPU.

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reported-by: John Garry <john.garry@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-10 17:49:35 +00:00
Baruch Siach
59c4dccbc3 arm64: dts: marvell: mcbin: fix PCIe reset signal
The MPP52 signal is on the seconds GPIO instance of CP0, which
corresponds to the &cp0_gpio2 handle.

Rename the property name to the standard '-gpios' suffix while at it.

Fixes: b83e1669ad ("arm64: dts: marvell: mcbin: add support for PCIe")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2019-01-10 12:20:32 +01:00
Heinrich Schuchardt
132ac39cff arm64: dts: marvell: armada-ap806: reserve PSCI area
The memory area [0x4000000-0x4200000[ is occupied by the PSCI firmware. Any
attempt to access it from Linux leads to an immediate crash.

So let's make the same memory reservation as the vendor kernel.

[gregory: added as comment that this region matches the mainline U-boot]
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2019-01-10 12:16:33 +01:00
Will Deacon
d9ed41962e arm64: asm-prototypes: Fix fat-fingered typo in comment
Some of the right letters, not necessarily in the right order:

	CONFIG_MODEVERIONS -> CONFIG_MODVERSIONS

Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-10 11:11:46 +00:00
Andrey Konovalov
eb214f2dda kasan, arm64: use ARCH_SLAB_MINALIGN instead of manual aligning
Instead of changing cache->align to be aligned to KASAN_SHADOW_SCALE_SIZE
in kasan_cache_create() we can reuse the ARCH_SLAB_MINALIGN macro.

Link: http://lkml.kernel.org/r/52ddd881916bcc153a9924c154daacde78522227.1546540962.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Suggested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-08 17:15:11 -08:00
Jerome Brunet
19a220dd1e arm64: defconfig: enable modules for amlogic s400 sound card
Compile the necessary drivers as modules, including codecs, for the
s400 sound card.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-01-08 15:27:50 -08:00
Linus Torvalds
85e1ffbd42 Kbuild late updates for v4.21
- improve boolinit.cocci and use_after_iter.cocci semantic patches
 
 - fix alignment for kallsyms
 
 - move 'asm goto' compiler test to Kconfig and clean up jump_label
   CONFIG option
 
 - generate asm-generic wrappers automatically if arch does not implement
   mandatory UAPI headers
 
 - remove redundant generic-y defines
 
 - misc cleanups
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJcMV5GAAoJED2LAQed4NsGs9gQAI/oGg8wJgk9a7+dJCX245W5
 F4ReftnQd4AFptFCi9geJkr+sfViXNgwPLqlJxiXz8Qe8XP7z3LcArDw3FUzwvGn
 bMSBiN9ggwWkOFgF523XesYgUVtcLpkNch/Migzf1Ac0FHk0G9o7gjcdsvAWHkUu
 qFwtNcUB6PElRbhsHsh5qCY1/6HaAXgf/7O7wztnaKRe9myN6f2HzT4wANS9HHde
 1e1r0LcIQeGWfG+3va3fZl6SDxSI/ybl244OcDmDyYl6RA1skSDlHbIBIFgUPoS0
 cLyzoVj+GkfI1fRFEIfou+dj7lpukoAXHsggHo0M+ofqtbMF+VB2T3jvg4txanCP
 TXzDc+04QUguK5yVnBfcnyC64Htrhnbq0eGy43kd1VZWAEGApl+680P8CRsWU3ZV
 kOiFvZQ6RP/Ssw+a42yU3SHr31WD7feuQqHU65osQt4rdyL5wnrfU1vaUvJSkltF
 cyPr9Kz/Ism0kPodhpFkuKxwtlKOw6/uwdCQoQHtxAPkvkcydhYx93x3iE0nxObS
 CRMximiRyE12DOcv/3uv69n0JOPn6AsITcMNp8XryASYrR2/52txhGKGhvo3+Zoq
 5pwc063JsuxJ/5/dcOw/erQar5d1eBRaBJyEWnXroxUjbsLPAznE+UIN8tmvyVly
 SunlxNOXBdYeWN6t6S3H
 =I+r6
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-v4.21-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - improve boolinit.cocci and use_after_iter.cocci semantic patches

 - fix alignment for kallsyms

 - move 'asm goto' compiler test to Kconfig and clean up jump_label
   CONFIG option

 - generate asm-generic wrappers automatically if arch does not
   implement mandatory UAPI headers

 - remove redundant generic-y defines

 - misc cleanups

* tag 'kbuild-v4.21-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kconfig: rename generated .*conf-cfg to *conf-cfg
  kbuild: remove unnecessary stubs for archheader and archscripts
  kbuild: use assignment instead of define ... endef for filechk_* rules
  arch: remove redundant UAPI generic-y defines
  kbuild: generate asm-generic wrappers if mandatory headers are missing
  arch: remove stale comments "UAPI Header export list"
  riscv: remove redundant kernel-space generic-y
  kbuild: change filechk to surround the given command with { }
  kbuild: remove redundant target cleaning on failure
  kbuild: clean up rule_dtc_dt_yaml
  kbuild: remove UIMAGE_IN and UIMAGE_OUT
  jump_label: move 'asm goto' support test to Kconfig
  kallsyms: lower alignment on ARM
  scripts: coccinelle: boolinit: drop warnings on named constants
  scripts: coccinelle: check for redeclaration
  kconfig: remove unused "file" field of yylval union
  nds32: remove redundant kernel-space generic-y
  nios2: remove unneeded HAS_DMA define
2019-01-06 16:33:10 -08:00
Linus Torvalds
926b02d3eb pci-v4.21-changes
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAlwtMCIUHGJoZWxnYWFz
 QGdvb2dsZS5jb20ACgkQWYigwDrT+vwQUQ/+P5/VDpo4abjudGO2c7FU1bJOwvfN
 cfV5dvDCw0kpx0Em5SmnpAD7Punllxxvb/04K75lqarGyx/Txqaw+lbIF+qSj6my
 GsQ16Iy8T48x5hr+Pf6vTh1eE+NaAVZfOPDOt7CyTNAgwfzHeVNyfNvz7pfKTIIJ
 Mk/jRE4kkeWo60jsY5p3sFo3OVOxBOsRdN+2sruaQuWFXrKHLyNDR+7Z9ZPxubFk
 cCO/TYPhNXmmKhCAR4V/rGiqz9OL2wyFixGhGhmD3tnC9nAb/wTMzjARsyBopBPi
 b/KkR2eLFEyXN0HJrwqxiURo4J3nveAYEuNXH5KjRBQZnoBCGSCIlqFhlrp9vdBk
 B4KIdT8h/M6LsVGeVSEIxIEXCp67YE31kxraFrk4Vsggdh2TFQ0llh1sajj8IFJB
 XekutedAOlTSOaM1/jvVPUJYg04X90bp3uXn3IU45XlQ8nBOG3immFVITRLkvd3w
 ywH+SEdeZAhWl3RGy8SHhqdeCJ7nNQbcRaRJ5CoWJBDNJTBGF1X+zJD2Swi6H9vA
 nWGNRlb3CPPIMPF127nADnOE7Cj2FlpAEIEu52HpcpIrhEdrGvLkGeQfgdWBjbyU
 aHwC04bLWnvsA9SEFVnuMIBaFQmJ1RuaWAHdtscyyO2uoeCtN8Aa+BX6jXFbVZQN
 9eFzpiv0kUiXlAQ=
 =g1ia
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - Remove unused lists from ASPM pcie_link_state (Frederick Lawler)

 - Fix Broadcom CNB20LE host bridge unintended sign extension (Colin Ian
   King)

 - Expand Kconfig "PF" acronyms (Randy Dunlap)

 - Update MAINTAINERS for arch/x86/kernel/early-quirks.c (Bjorn Helgaas)

 - Add missing include to drivers/pci.h (Alexandru Gagniuc)

 - Override Synopsys USB 3.x HAPS device class so dwc3-haps can claim it
   instead of xhci (Thinh Nguyen)

 - Clean up P2PDMA documentation (Randy Dunlap)

 - Allow runtime PM even if driver doesn't supply callbacks (Jarkko
   Nikula)

 - Remove status check after submitting Switchtec MRPC Firmware Download
   commands to avoid Completion Timeouts (Kelvin Cao)

 - Set Switchtec coherent DMA mask to allow 64-bit DMA (Boris Glimcher)

 - Fix Switchtec SWITCHTEC_IOCTL_EVENT_IDX_ALL flag overwrite issue
   (Joey Zhang)

 - Enable write combining for Switchtec MRPC Input buffers (Kelvin Cao)

 - Add Switchtec MRPC DMA mode support (Wesley Sheng)

 - Skip VF scanning on powerpc, which does this in firmware (Sebastian
   Ott)

 - Add Amlogic Meson PCIe controller driver and DT bindings (Yue Wang)

 - Constify histb dw_pcie_host_ops structure (Julia Lawall)

 - Support multiple power domains for imx6 (Leonard Crestez)

 - Constify layerscape driver data (Stefan Agner)

 - Update imx6 Kconfig to allow imx6 PCIe in imx7 kernel (Trent Piepho)

 - Support armada8k GPIO reset (Baruch Siach)

 - Support suspend/resume support on imx6 (Leonard Crestez)

 - Don't hard-code DesignWare DBI/ATU offst (Stephen Warren)

 - Skip i.MX6 PHY setup on i.MX7D (Andrey Smirnov)

 - Remove Jianguo Sun from HiSilicon STB maintainers (Lorenzo Pieralisi)

 - Mask DesignWare interrupts instead of disabling them to avoid lost
   interrupts (Marc Zyngier)

 - Add locking when acking DesignWare interrupts (Marc Zyngier)

 - Ack DesignWare interrupts in the proper callbacks (Marc Zyngier)

 - Use devm resource parser in mediatek (Honghui Zhang)

 - Remove unused mediatek "num-lanes" DT property (Honghui Zhang)

 - Add UniPhier PCIe controller driver and DT bindings (Kunihiko
   Hayashi)

 - Enable MSI for imx6 downstream components (Richard Zhu)

* tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (40 commits)
  PCI: imx: Enable MSI from downstream components
  s390/pci: skip VF scanning
  PCI/IOV: Add flag so platforms can skip VF scanning
  PCI/IOV: Factor out sriov_add_vfs()
  PCI: uniphier: Add UniPhier PCIe host controller support
  dt-bindings: PCI: Add UniPhier PCIe host controller description
  PCI: amlogic: Add the Amlogic Meson PCIe controller driver
  dt-bindings: PCI: meson: add DT bindings for Amlogic Meson PCIe controller
  arm64: dts: mt7622: Remove un-used property for PCIe
  arm: dts: mt7623: Remove un-used property for PCIe
  dt-bindings: PCI: MediaTek: Remove un-used property
  PCI: mediatek: Remove un-used variant in struct mtk_pcie_port
  MAINTAINERS: Remove Jianguo Sun from HiSilicon STB DWC entry
  PCI: dwc: Don't hard-code DBI/ATU offset
  PCI: imx: Add imx6sx suspend/resume support
  PCI: armada8k: Add support for gpio controlled reset signal
  PCI: dwc: Adjust Kconfig to allow IMX6 PCIe host on IMX7
  PCI: dwc: layerscape: Constify driver data
  PCI: imx: Add multi-pd support
  PCI: Override Synopsys USB 3.x HAPS device class
  ...
2019-01-05 17:57:34 -08:00
Masahiro Yamada
d6e4b3e326 arch: remove redundant UAPI generic-y defines
Now that Kbuild automatically creates asm-generic wrappers for missing
mandatory headers, it is redundant to list the same headers in
generic-y and mandatory-y.

Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
2019-01-06 10:22:15 +09:00
Masahiro Yamada
d4ce5458ea arch: remove stale comments "UAPI Header export list"
These comments are leftovers of commit fcc8487d47 ("uapi: export all
headers under uapi directories").

Prior to that commit, exported headers must be explicitly added to
header-y. Now, all headers under the uapi/ directories are exported.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-01-06 09:46:51 +09:00
Masahiro Yamada
e9666d10a5 jump_label: move 'asm goto' support test to Kconfig
Currently, CONFIG_JUMP_LABEL just means "I _want_ to use jump label".

The jump label is controlled by HAVE_JUMP_LABEL, which is defined
like this:

  #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
  # define HAVE_JUMP_LABEL
  #endif

We can improve this by testing 'asm goto' support in Kconfig, then
make JUMP_LABEL depend on CC_HAS_ASM_GOTO.

Ugly #ifdef HAVE_JUMP_LABEL will go away, and CONFIG_JUMP_LABEL will
match to the real kernel capability.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
2019-01-06 09:46:51 +09:00
Linus Torvalds
b23b0ea370 ARM: SoC: late updates
A few updates that we merged late but are low risk for regressions for
 other platforms (and a few other straggling patches):
 
  - I mis-tagged the 'drivers' branch, and missed 3 patches. Merged in
    here. They're for a driver for the PL353 SRAM controller and a build
    fix for the qualcomm scm driver.
  - A new platform, RDA Micro RDA8810PL (Cortex-A5 w/ integrated Vivante
    GPU, 256MB RAM, Wifi). This includes some acked platform-specific
    drivers (serial, etc). This also include DTs for two boards with this
    SoC, OrangePi 2G and OrangePi i86.
  - i.MX8 is another new platform (NXP, 4x Cortex-A53 + Cortex-M4, 4K
    video playback offload). This is the first i.MX 64-bit SoC.
  - Some minor updates to Samsung boards (adding a few peripherals in
    DTs).
  - Small rework for SMP bootup on STi platforms.
  - A couple of TEE driver fixes.
  - A couple of new config options (bcm2835 thermal, Uniphier MDMAC)
    enabled in defconfigs.
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCAAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAlwv4lAPHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx3JQsQAIcvwnI8rKPEskd20kNaj5bCUlG2hcIN/VoT
 scq1iCXpICOF53jBQvDoe48n+Ji4mI2VD7AIZD8XVppR+aHgpy8fkjX+uz8Ap0dG
 8B2y9vJ6nomrxKslnFEUk6LxpsaadpzTQDlcHAQvPdJxkvmMuA2b8LMGZhoAQ+dB
 lCw/qbjmoMEAV+dKXqRu62wwjZ10j4B7ex1XB1gnfjJYy+Splnd5fkdFCvd3wk+7
 BOH2iGROyLC0TC6ggqv45NNm6EykO9XqI5nq/3VHq9aBVJVWtFUQhDScjNf6qyYM
 mvUg6ZxmiTyIjhN+erttFXtxSKCH0BIdlBLZzaQ9W2XbTKMgzUlgK5GjQGqKCG6A
 QZHs9oe/TQuaHZ2ghMRbxcTWZC8Zdi1hYYa8fB7yNCZKnPNLRaA5P7O/3/s796B6
 DXpIHlU4lpyRdg26Zxh+FXYIXLsUYk9WNcwhjFbUQ/WXP3L9qf7FUU1EeSQeGDHU
 yRCE+kuKFs5FJnAZYXQ+0BCv0v8GFLMKTXDTbYtVFt0QDWVeeWwRt6gCOcHv1vBI
 IbZ0QLn1fzW2efgsXXB9i9VXO5AiP3EMx2A9Lqvrv+ufRXzQlBPbYZhN/Lp+BuDC
 moWdT5Cmye00uu35wY6H7Ycd+CO29dJ/B+hKbgqjyzFkZJiwWnPoeVQH2M1IkjOj
 IydIEbEo
 =qgZw
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull more ARM SoC updates from Olof Johansson:
 "A few updates that we merged late but are low risk for regressions for
  other platforms (and a few other straggling patches):

   - I mis-tagged the 'drivers' branch, and missed 3 patches. Merged in
     here. They're for a driver for the PL353 SRAM controller and a
     build fix for the qualcomm scm driver.

   - A new platform, RDA Micro RDA8810PL (Cortex-A5 w/ integrated
     Vivante GPU, 256MB RAM, Wifi). This includes some acked
     platform-specific drivers (serial, etc). This also include DTs for
     two boards with this SoC, OrangePi 2G and OrangePi i86.

   - i.MX8 is another new platform (NXP, 4x Cortex-A53 + Cortex-M4, 4K
     video playback offload). This is the first i.MX 64-bit SoC.

   - Some minor updates to Samsung boards (adding a few peripherals in
     DTs).

   - Small rework for SMP bootup on STi platforms.

   - A couple of TEE driver fixes.

   - A couple of new config options (bcm2835 thermal, Uniphier MDMAC)
     enabled in defconfigs"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (27 commits)
  ARM: multi_v7_defconfig: enable CONFIG_UNIPHIER_MDMAC
  arm64: defconfig: Re-enable bcm2835-thermal driver
  MAINTAINERS: Add entry for RDA Micro SoC architecture
  tty: serial: Add RDA8810PL UART driver
  ARM: dts: rda8810pl: Add interrupt support for UART
  dt-bindings: serial: Document RDA Micro UART
  ARM: dts: rda8810pl: Add timer support
  ARM: dts: Add devicetree for OrangePi i96 board
  ARM: dts: Add devicetree for OrangePi 2G IoT board
  ARM: dts: Add devicetree for RDA8810PL SoC
  ARM: Prepare RDA8810PL SoC
  dt-bindings: arm: Document RDA8810PL and reference boards
  dt-bindings: Add RDA Micro vendor prefix
  ARM: sti: remove pen_release and boot_lock
  arm64: dts: exynos: Add Bluetooth chip to TM2(e) boards
  arm64: dts: imx8mq-evk: enable watchdog
  arm64: dts: imx8mq: add watchdog devices
  MAINTAINERS: add i.MX8 DT path to i.MX architecture
  arm64: add support for i.MX8M EVK board
  arm64: add basic DTS for i.MX8MQ
  ...
2019-01-05 11:30:37 -08:00
Linus Torvalds
078a5a4faf arm64 fixes for -rc1
- Prevent KASLR from mapping the top page of the virtual address space
 
 - Fix device-tree probing of SDEI driver
 
 - Fix incorrect register offset definition in Hisilicon DDRC PMU driver
 
 - Fix compilation issue with older binutils not liking unsigned immediates
 
 - Fix uapi headers so that libc can provide its own sigcontext definition
 
 - Fix handling of private compat syscalls
 
 - Hook up compat io_pgetevents() syscall for 32-bit tasks
 
 - Cleanup to arm64 Makefile (including now to avoid silly conflicts)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABCgAGBQJcL3d+AAoJELescNyEwWM0PNcIAIdjWQeBQYMBc8C/A2dBqL2s
 tWBI+ormmZO72eAOVuGr1ZBqPhIpqXPQQquchnPDEzL+vZiq5Y6HP6ND8a+ISN2c
 0NmWH2aURR+SZG5Mfpa9PffUlDu1LVbssbzt3Vk89BmOEFwBbr5w9FEO96c8drJC
 MJ5NICtHnTvuI9jRs9zQoJOk+LKAL1Ei3v7EEyJGKVlRahtaYGZIkfx9t1BmFXzB
 SFCA7Zf8kHQItKAwfGWsocd7CP7hQZcmpFcn/GfjXML2FQ+sa9Slys+u+8mvSziQ
 EiU5os5krKPUpXXmyOeWXzEukZSJMRm2f9FBR2YquYm5RJ7Y0xQH1pB4aLsCR0g=
 =LvTk
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "I'm safely chained back up to my desk, so please pull these arm64
  fixes for -rc1 that address some issues that cropped up during the
  merge window:

   - Prevent KASLR from mapping the top page of the virtual address
     space

   - Fix device-tree probing of SDEI driver

   - Fix incorrect register offset definition in Hisilicon DDRC PMU
     driver

   - Fix compilation issue with older binutils not liking unsigned
     immediates

   - Fix uapi headers so that libc can provide its own sigcontext
     definition

   - Fix handling of private compat syscalls

   - Hook up compat io_pgetevents() syscall for 32-bit tasks

   - Cleanup to arm64 Makefile (including now to avoid silly conflicts)"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: compat: Hook up io_pgetevents() for 32-bit tasks
  arm64: compat: Don't pull syscall number from regs in arm_compat_syscall
  arm64: compat: Avoid sending SIGILL for unallocated syscall numbers
  arm64/sve: Disentangle <uapi/asm/ptrace.h> from <uapi/asm/sigcontext.h>
  arm64/sve: ptrace: Fix SVE_PT_REGS_OFFSET definition
  drivers/perf: hisi: Fixup one DDRC PMU register offset
  arm64: replace arm64-obj-* in Makefile with obj-*
  arm64: kaslr: Reserve size of ARM64_MEMSTART_ALIGN in linear region
  firmware: arm_sdei: Fix DT platform device creation
  firmware: arm_sdei: fix wrong of_node_put() in init function
  arm64: entry: remove unused register aliases
  arm64: smp: Fix compilation error
2019-01-05 11:28:39 -08:00
Linus Torvalds
a65981109f Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:

 - procfs updates

 - various misc bits

 - lib/ updates

 - epoll updates

 - autofs

 - fatfs

 - a few more MM bits

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (58 commits)
  mm/page_io.c: fix polled swap page in
  checkpatch: add Co-developed-by to signature tags
  docs: fix Co-Developed-by docs
  drivers/base/platform.c: kmemleak ignore a known leak
  fs: don't open code lru_to_page()
  fs/: remove caller signal_pending branch predictions
  mm/: remove caller signal_pending branch predictions
  arch/arc/mm/fault.c: remove caller signal_pending_branch predictions
  kernel/sched/: remove caller signal_pending branch predictions
  kernel/locking/mutex.c: remove caller signal_pending branch predictions
  mm: select HAVE_MOVE_PMD on x86 for faster mremap
  mm: speed up mremap by 20x on large regions
  mm: treewide: remove unused address argument from pte_alloc functions
  initramfs: cleanup incomplete rootfs
  scripts/gdb: fix lx-version string output
  kernel/kcov.c: mark write_comp_data() as notrace
  kernel/sysctl: add panic_print into sysctl
  panic: add options to print system info when panic happens
  bfs: extra sanity checking and static inode bitmap
  exec: separate MM_ANONPAGES and RLIMIT_STACK accounting
  ...
2019-01-05 09:16:18 -08:00
Joel Fernandes (Google)
4cf5892495 mm: treewide: remove unused address argument from pte_alloc functions
Patch series "Add support for fast mremap".

This series speeds up the mremap(2) syscall by copying page tables at
the PMD level even for non-THP systems.  There is concern that the extra
'address' argument that mremap passes to pte_alloc may do something
subtle architecture related in the future that may make the scheme not
work.  Also we find that there is no point in passing the 'address' to
pte_alloc since its unused.  This patch therefore removes this argument
tree-wide resulting in a nice negative diff as well.  Also ensuring
along the way that the enabled architectures do not do anything funky
with the 'address' argument that goes unnoticed by the optimization.

Build and boot tested on x86-64.  Build tested on arm64.  The config
enablement patch for arm64 will be posted in the future after more
testing.

The changes were obtained by applying the following Coccinelle script.
(thanks Julia for answering all Coccinelle questions!).
Following fix ups were done manually:
* Removal of address argument from  pte_fragment_alloc
* Removal of pte_alloc_one_fast definitions from m68k and microblaze.

// Options: --include-headers --no-includes
// Note: I split the 'identifier fn' line, so if you are manually
// running it, please unsplit it so it runs for you.

virtual patch

@pte_alloc_func_def depends on patch exists@
identifier E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
type T2;
@@

 fn(...
- , T2 E2
 )
 { ... }

@pte_alloc_func_proto_noarg depends on patch exists@
type T1, T2, T3, T4;
identifier fn =~ "^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1, T2);
+ T3 fn(T1);
|
- T3 fn(T1, T2, T4);
+ T3 fn(T1, T2);
)

@pte_alloc_func_proto depends on patch exists@
identifier E1, E2, E4;
type T1, T2, T3, T4;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

(
- T3 fn(T1 E1, T2 E2);
+ T3 fn(T1 E1);
|
- T3 fn(T1 E1, T2 E2, T4 E4);
+ T3 fn(T1 E1, T2 E2);
)

@pte_alloc_func_call depends on patch exists@
expression E2;
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
@@

 fn(...
-,  E2
 )

@pte_alloc_macro depends on patch exists@
identifier fn =~
"^(__pte_alloc|pte_alloc_one|pte_alloc|__pte_alloc_kernel|pte_alloc_one_kernel)$";
identifier a, b, c;
expression e;
position p;
@@

(
- #define fn(a, b, c) e
+ #define fn(a, b) e
|
- #define fn(a, b) e
+ #define fn(a) e
)

Link: http://lkml.kernel.org/r/20181108181201.88826-2-joelaf@google.com
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Suggested-by: Kirill A. Shutemov <kirill@shutemov.name>
Acked-by: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-04 13:13:47 -08:00
Will Deacon
7e0b44e870 arm64: compat: Hook up io_pgetevents() for 32-bit tasks
Commit 73aeb2cbcd ("ARM: 8787/1: wire up io_pgetevents syscall")
hooked up the io_pgetevents() system call for 32-bit ARM, so we can
do the same for the compat wrapper on arm64.

Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-04 14:18:01 +00:00
Will Deacon
5329043214 arm64: compat: Don't pull syscall number from regs in arm_compat_syscall
The syscall number may have been changed by a tracer, so we should pass
the actual number in from the caller instead of pulling it from the
saved r7 value directly.

Cc: <stable@vger.kernel.org>
Cc: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-04 14:18:01 +00:00
Will Deacon
169113ece0 arm64: compat: Avoid sending SIGILL for unallocated syscall numbers
The ARM Linux kernel handles the EABI syscall numbers as follows:

  0           - NR_SYSCALLS-1	: Invoke syscall via syscall table
  NR_SYSCALLS - 0xeffff		: -ENOSYS (to be allocated in future)
  0xf0000     - 0xf07ff		: Private syscall or -ENOSYS if not allocated
  > 0xf07ff			: SIGILL

Our compat code gets this wrong and ends up sending SIGILL in response
to all syscalls greater than NR_SYSCALLS which have a value greater
than 0x7ff in the bottom 16 bits.

Fix this by defining the end of the ARM private syscall region and
checking the syscall number against that directly. Update the comment
while we're at it.

Cc: <stable@vger.kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Reported-by: Pi-Hsun Shih <pihsun@chromium.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-04 14:18:01 +00:00
Dave Martin
9966a05c7b arm64/sve: Disentangle <uapi/asm/ptrace.h> from <uapi/asm/sigcontext.h>
Currently, <uapi/asm/sigcontext.h> provides common definitions for
describing SVE context structures that are also used by the ptrace
definitions in <uapi/asm/ptrace.h>.

For this reason, a #include of <asm/sigcontext.h> was added in
ptrace.h, but it this turns out that this can interact badly with
userspace code that tries to include ptrace.h on top of the libc
headers (which may provide their own shadow definitions for
sigcontext.h).

To make the headers easier for userspace to consume, this patch
bounces the common definitions into an __SVE_* namespace and moves
them to a backend header <uapi/asm/sve_context.h> that can be
included by the other headers as appropriate.  This should allow
ptrace.h to be used alongside libc's sigcontext.h (if any) without
ill effects.

This should make the situation unambiguous: <asm/sigcontext.h> is
the header to include for the sigframe-specific definitions, while
<asm/ptrace.h> is the header to include for ptrace-specific
definitions.

To avoid conflicting with existing usage, <asm/sigcontext.h>
remains the canonical way to get the common definitions for
SVE_VQ_MIN, sve_vq_from_vl() etc., both in userspace and in the
kernel: relying on these being defined as a side effect of
including just <asm/ptrace.h> was never intended to be safe.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-04 13:31:45 +00:00
Dave Martin
ee1b465b30 arm64/sve: ptrace: Fix SVE_PT_REGS_OFFSET definition
SVE_PT_REGS_OFFSET is supposed to indicate the offset for skipping
over the ptrace NT_ARM_SVE header (struct user_sve_header) to the
start of the SVE register data proper.

However, currently SVE_PT_REGS_OFFSET is defined in terms of struct
sve_context, which is wrong: that structure describes the SVE
header in the signal frame, not in the ptrace regset.

This patch fixes the definition to use the ptrace header structure
struct user_sve_header instead.

By good fortune, the two structures are the same size anyway, so
there is no functional or ABI change.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-04 13:31:45 +00:00
Masahiro Yamada
2f328fea47 arm64: replace arm64-obj-* in Makefile with obj-*
Use the standard obj-$(CONFIG_...) syntex. The behavior is still the
same.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-04 10:09:21 +00:00
Linus Torvalds
96d4f267e4 Remove 'type' argument from access_ok() function
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.

It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access.  But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.

A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model.  And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.

This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.

There were a couple of notable cases:

 - csky still had the old "verify_area()" name as an alias.

 - the iter_iov code had magical hardcoded knowledge of the actual
   values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
   really used it)

 - microblaze used the type argument for a debug printout

but other than those oddities this should be a total no-op patch.

I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something.  Any missed conversion should be trivially fixable, though.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-03 18:57:57 -08:00
Yueyi Li
c8a43c18a9 arm64: kaslr: Reserve size of ARM64_MEMSTART_ALIGN in linear region
When KASLR is enabled (CONFIG_RANDOMIZE_BASE=y), the top 4K of kernel
virtual address space may be mapped to physical addresses despite being
reserved for ERR_PTR values.

Fix the randomization of the linear region so that we avoid mapping the
last page of the virtual address space.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: liyueyi <liyueyi@live.com>
[will: rewrote commit message; merged in suggestion from Ard]
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-03 18:03:54 +00:00
Mark Rutland
8c2c596f8f arm64: entry: remove unused register aliases
In commit:

  3b7142752e ("arm64: convert native/compat syscall entry to C")

... we moved the syscall invocation code from assembly to C, but left
behind a number of register aliases which are now unused.

Let's remove them before they confuse someone.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-03 18:03:41 +00:00
Shaokun Zhang
1236cd2bad arm64: smp: Fix compilation error
For arm64: updates for 4.21, there is a compilation error:
arch/arm64/kernel/head.S: Assembler messages:
arch/arm64/kernel/head.S:824: Error: missing ')'
arch/arm64/kernel/head.S:824: Error: missing ')'
arch/arm64/kernel/head.S:824: Error: missing ')'
arch/arm64/kernel/head.S:824: Error: unexpected characters following instruction at operand 2 -- `mov x2,#(2)|(2U<<(8))'
scripts/Makefile.build:391: recipe for target 'arch/arm64/kernel/head.o' failed
make[1]: *** [arch/arm64/kernel/head.o] Error 1
GCC version is gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609

Let's fix it using the UL() macro.

Fixes: 66f16a2451 ("arm64: smp: Rework early feature mismatched detection")
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
[will: consistent use of UL() for all shifts in asm constants]
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-01-03 15:14:32 +00:00
Linus Torvalds
fcf010449e kgdb patches for 4.20-rc1
Mostly clean ups although whilst Doug's was chasing down a odd
 lockdep warning he also did some work to improved debugger resilience
 when some CPUs fail to respond to the round up request.
 
 The main changes are:
 
  * Fixing a lockdep warning on architectures that cannot use an NMI for
    the round up plus related changes to make CPU round up and all CPU
    backtrace more resilient.
 
  * Constify the arch ops tables
 
  * A couple of other small clean ups
 
 Two of the three patchsets here include changes that spill over into
 arch/.  Changes in the arch space are relatively narrow in scope
 (and directly related to kgdb). Didn't get comprehensive acks but
 all impacted maintainers were Cc:ed in good time.
 
 Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJPBAABCAA5FiEELzVBU1D3lWq6cKzwfOMlXTn3iKEFAlwonoUbHGRhbmllbC50
 aG9tcHNvbkBsaW5hcm8ub3JnAAoJEHzjJV0594ihmooP/1uzSMGQIoQMB8XeU/jT
 Da2iILybi6hGp7ILA27d0yN3tsJBxWGWs8wzNdzMo3NQ3J0o4foAUnS/R0Vjkg9w
 uphe5EA4HDsIrH05OouNb984BeEgNaC9HSqtyr9fXuh024NboULFKIm7REYm+QHT
 C5SrBtmonL1xE7FmAhudLWjl7ZlvxM6DJeoVViH4kKq0raTiILt6VJaGl9JfcAdL
 m9GEf9r/nh0sCq3GNgyc0y4BvHed+Kxzy1fsIi3jE6t8elaYYR72gNRQ5LaFxcnQ
 F04/UtH75qB4rqYsqqV1q0rFi+tj+p9wYTmxixaGWsVDX4Gb5KXuLWJhaRb5IvwC
 bdq/0IAXRr4vUL3y0tFWfCj7pHGaVc/gfXi8aieRXLGAZG+tdfuu99NCiulIZTfc
 QqZz12Z+99/qi6dK7dBQtaN8SyPeB1QXKWefeGo2Bt5QqiBmcKHxsQYMUo3nkf3J
 UXHpj4LG6Ldsi/w8VZfvXmM0/vbO/jrus9m+X2v+4tJyisjrsyv0FRnREI4avfbC
 l09P1ajv7RrAaxtab0smV9krqWZ/mSn0zcgcaD6RdKe0+SwsiP/CEx1z1Wb1MH9c
 wjEiClXjdVB39YVT0YVfG2Ho7qH8WRErxVyNb/f4QKHMXL1Mu91hFWhBBpUOGUj2
 7Jrq2zK1uWramtt7GBDpHYYH
 =Aqlc
 -----END PGP SIGNATURE-----

Merge tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

Pull kgdb updates from Daniel Thompson:
 "Mostly clean ups although while Doug's was chasing down a odd lockdep
  warning he also did some work to improved debugger resilience when
  some CPUs fail to respond to the round up request.

  The main changes are:

   - Fixing a lockdep warning on architectures that cannot use an NMI
     for the round up plus related changes to make CPU round up and all
     CPU backtrace more resilient.

   - Constify the arch ops tables

   - A couple of other small clean ups

  Two of the three patchsets here include changes that spill over into
  arch/. Changes in the arch space are relatively narrow in scope (and
  directly related to kgdb). Didn't get comprehensive acks but all
  impacted maintainers were Cc:ed in good time"

* tag 'kgdb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
  kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops
  mips/kgdb: prepare arch_kgdb_ops for constness
  kdb: use bool for binary state indicators
  kdb: Don't back trace on a cpu that didn't round up
  kgdb: Don't round up a CPU that failed rounding up before
  kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function()
  kgdb: Remove irq flags from roundup
2019-01-01 15:38:14 -08:00
Linus Torvalds
e1ef035d27 ARM: SoC defconfig updates
Most changes here are to enable new drivers and platforms in the various
 configs that affect them. Most of these have been covered and described
 in the other branches, we mostly keep defconfig separate to avoid
 conflicts between SoC/dt/driver updates that they otherwise would be
 grouped with.
 
 One thing worth mentioning here is that OMAP changes from using their
 own UART driver, to 8250, for the multi_v7_defconfig shared config on
 32-bit. This means that the console is now named ttyS* instead of ttyO*.
 This change was already done for omap2_defconfig a while back, so most
 users of these configs have either already updated, or can easily follow
 the same patterns as they did at that time. This makes platform support
 slightly easier for distros, since they no longer need to keep track of
 a separate console prefix for these platforms.
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCAAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAlwqg+4PHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx3nHcQAKrzSPsi3NWZHAIyP9Gcsu/mqebeB7ATnUVB
 EfsYl+0ZLwZjex2pI7YmDih4QgOui3caOYU3rlqcu+zTSXYp03GnzA/fuW/aOBr3
 Y4UYQcUIJULJyYzE14y5MhYxMfedF5U4yfayQj/6Xn4dojSICb19/CxD7lEtxUBQ
 DqYizTnR5ABRVDnRXmgo0TcHCSa05xP5Hn48DL02fJUc1oHzv3RoH2MrC4j4a2QO
 k0INYeq9cRFv9kcuz4S0VRXDvpA6cLsa9RZ8I3eJ+tpDFK8HmNyrij98CQLBwb/S
 UzuC+DvD5MdJsf6Tp15enXIKtLKBtEQiXVncX5dCFLGW+lfZb0FyMa6Q4herGEL3
 NLifwcxDwiATKJkGuQKJHhCnMVGanUz+fn+7nXbHtloOsR/2ttofaTFCCURN0Pr+
 oIa79JSd58SES+Rqz7V17r08SuK5iMjF8XENDMuim095WIt2ysoKW7P11eq/CjNf
 qheaiBK/ANHeYaVLb6OG7V5SMjsxWYcUfvwONiA5Qs1HbjiOXamUBOAiBF8zMBZc
 rd21X2kqVpfU/IDgqhWTEawtl76gh9+1uCbbL5l+qiwyFfRw0b/9pakMs3szgD+v
 2w49p/WwOQQoxzV5jCBlo36ZzKISrKGnTEQhRadtxCPPnrg/8emUNU6S/aHB2OmH
 x1Vehuja
 =65qL
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC defconfig updates from Olof Johansson:
 "Most changes here are to enable new drivers and platforms in the
  various configs that affect them. Most of these have been covered and
  described in the other branches, we mostly keep defconfig separate to
  avoid conflicts between SoC/dt/driver updates that they otherwise
  would be grouped with.

  One thing worth mentioning here is that OMAP changes from using their
  own UART driver, to 8250, for the multi_v7_defconfig shared config on
  32-bit. This means that the console is now named ttyS* instead of
  ttyO*. This change was already done for omap2_defconfig a while back,
  so most users of these configs have either already updated, or can
  easily follow the same patterns as they did at that time. This makes
  platform support slightly easier for distros, since they no longer
  need to keep track of a separate console prefix for these platforms"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  Revert "arm64: defconfig: Enable FSL_MC_BUS and FSL_MC_DPIO"
  arm64: defconfig: Enable FSL_MC_BUS and FSL_MC_DPIO
  arm64: defconfig: Replace PINCTRL_MT7622 with PINCTRL_MTK_MOORE
  arm64: defconfig: Regenerate for v4.20
  ARM: multi_v7_defconfig: Add TOSHIBA TC358764 bridge driver
  ARM: multi_v7_defconfig: Add MAX8952 regulator driver
  ARM: exynos_defconfig: Add TOSHIBA TC358764 bridge driver
  ARM: exynos_defconfig: Add MAX8952 regulator driver
  ARM: exynos_defconfig: Add MAX8998 RTC and charger drivers
  ARM: imx_v6_v7_defconfig: add imx7ulp support
  ARM: imx_v6_v7_defconfig: Select TOUCHSCREEN_GOODIX
  ARM: multi_v7_defconfig: enable STM32 analog & timer drivers
  arm64: defconfig: Enable GCC and PINCTRL for MSM8998
  arm64: defconfig: Enable core Qualcomm SDM845 options
  ARM: defconfig: Enable the PL111 DRM driver on vexpress
  ARM: defconfig: Update the vexpress defconfig
  arm64: defconfig: Enable some qcom remoteproc configs
  arm64: defconfig: Enable QCS404 configs
  ARM: imx_v6_v7_defconfig: Enable USB_ANNOUNCE_NEW_DEVICES
  ARM: imx_v6_v7_defconfig: Enable BT_BNEP
  ...
2018-12-31 17:40:14 -08:00
Linus Torvalds
b7badd1d7a ARM: Device-tree updates
As usual, this is where the bulk of our changes end up landing each
 merge window.
 
 The individual updates are too many to enumerate, many many platforms
 have seen additions of device descriptions such that they are
 functionally more complete (in fact, this is often the bulk of updates
 we see).
 
 Instead I've mostly focused on highlighting the new platforms below as
 they are introduced. Sometimes the introduction is of mostly a fragment,
 that later gets filled in on later releases, and in some cases it's
 near-complete platform support. The latter is more common for derivative
 platforms that already has similar support in-tree.
 
 Two SoCs are slight outliers from the usual range of additions. Allwinner
 support for F1C100s, a quite old SoC (ARMv5-based) shipping in the
 Lychee Pi Nano platform. At the other end is NXP Layerscape LX2160A,
 a 16-core 2.2GHz Cortex-A72 SoC with a large amount of I/O aimed at
 infrastructure/networking.
 
 TI updates stick out in the diff stats too, in particular because they
 have moved the description of their L4 on-chip interconnect to devicetree,
 which opens up for removal of even more of their platform-specific
 'hwmod' description tables over the next few releases.
 
 SoCs:
  - Qualcomm QCS404 (4x Cortex-A53)
  - Allwinner T3 (rebranded R40) and f1c100s (armv5)
  - NXP i.MX7ULP (1x Cortex-A7 + 1x Cortex-M4)
  - NXP LS1028A (2x Cortex-A72), LX2160A (16x Cortex-A72)
 
 New platforms:
  - Rockchip: Gru Scarlet (RK3188 Tablet)
  - Amlogic: Phicomm N1 (S905D), Libretech S805-AC
  - Broadcom: Linksys EA6500 v2 Wi-Fi router (BCM4708)
  - Qualcomm: QCS404 base platform and EVB
  - Qualcomm: Remove of Arrow SD600
  - PXA: First PXA3xx DT board: Raumfeld
  - Aspeed: Facebook Backpack-CMM BMC
  - Renesas iWave G20D-Q7 (RZ/G1N)
  - Allwinner t3-cqa3t-bv3 (T3/R40) and Lichee Pi Nano (F1C100s)
  - Allwinner Emlid Neutis N5, Mapleboard MP130
  - Marvell Macchiatobin Single Shot (Armada 8040, no 10GbE)
  - i.MX: mtrion emCON-MX6, imx6ul-pico-pi, imx7d-sdb-reva
  - VF610: Liebherr's BK4 device, ZII SCU4 AIB board
  - i.MX7D PICO Hobbit baseboard
  - i.MX7ULP EVK board
  - NXP LX2160AQDS and LX2160ARDB boards
 
 Other:
  - Coresight binding updates across the board
  - CPU cooling maps updates across the board
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCAAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAlwqgVYPHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx3ybAQAKAhd7XI5oY/wgdZZmxwcX+p7sU6LXeIlpWU
 XsPN1c14KU0siQv/znVA5OpF+fgn9eRqfWnMoDPlvdScTq07FM2NBmOJfVJYDPJa
 uvsll5m+84FCYanIR//YybS0tCM0b0BHoHo2DoyIxWeAwmw7BBVslddBdNg6R7hG
 S9rU9rUeqfCj7HbcPLqVn0DecMtEe7R8zmDtG1CSMqrhncifmoV4gtUnbYAg0GGT
 cSvj/zT8A1j0oJcU2Upl/Fr+7WJ7XB9pnku91nUOSXLv5VkyctLGomKq5F7O2/Xs
 2DhpH2yKwQt7S7TDiDd0jy64Of6+Xup35wEHevCeKrzGXcVRqqHwCkanLz9FdjVt
 yg4UrI/P1nY7h4ifZPplgigv+kA+IjRGiMrTRIEgSE5YK9U5AYkgembTWksRDikd
 5EpeJcMj2tBv4SDellNNtzh6GGTPBf3GJw3P9uRuxnQY/T31N2eX0XGeRikL+Lzf
 9nbQdJealmql3rCa5oFEJwSxrSaAv/ub7/294kPdEmXj8+3qUuH3hZAZOI9LSXGW
 GCuxsgccB2GF1M48x48/QpHgxb93okyXmndONZnU8uN8ba0zS4b8QLwvIY5rqv5Z
 kqD1VPBQf9kGVyzDyABRjFmGCDJcoOJf4QrzvNk9+xo8fXVk1xNtxu4MUsHvc2lS
 cU2RYWm/
 =sFVi
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM Device-tree updates from Olof Johansson:
 "As usual, this is where the bulk of our changes end up landing each
  merge window.

  The individual updates are too many to enumerate, many many platforms
  have seen additions of device descriptions such that they are
  functionally more complete (in fact, this is often the bulk of updates
  we see).

  Instead I've mostly focused on highlighting the new platforms below as
  they are introduced. Sometimes the introduction is of mostly a
  fragment, that later gets filled in on later releases, and in some
  cases it's near-complete platform support. The latter is more common
  for derivative platforms that already has similar support in-tree.

  Two SoCs are slight outliers from the usual range of additions.
  Allwinner support for F1C100s, a quite old SoC (ARMv5-based) shipping
  in the Lychee Pi Nano platform. At the other end is NXP Layerscape
  LX2160A, a 16-core 2.2GHz Cortex-A72 SoC with a large amount of I/O
  aimed at infrastructure/networking.

  TI updates stick out in the diff stats too, in particular because they
  have moved the description of their L4 on-chip interconnect to
  devicetree, which opens up for removal of even more of their
  platform-specific 'hwmod' description tables over the next few
  releases.

  SoCs:
   - Qualcomm QCS404 (4x Cortex-A53)
   - Allwinner T3 (rebranded R40) and f1c100s (armv5)
   - NXP i.MX7ULP (1x Cortex-A7 + 1x Cortex-M4)
   - NXP LS1028A (2x Cortex-A72), LX2160A (16x Cortex-A72)

  New platforms:
   - Rockchip: Gru Scarlet (RK3188 Tablet)
   - Amlogic: Phicomm N1 (S905D), Libretech S805-AC
   - Broadcom: Linksys EA6500 v2 Wi-Fi router (BCM4708)
   - Qualcomm: QCS404 base platform and EVB
   - Qualcomm: Remove of Arrow SD600
   - PXA: First PXA3xx DT board: Raumfeld
   - Aspeed: Facebook Backpack-CMM BMC
   - Renesas iWave G20D-Q7 (RZ/G1N)
   - Allwinner t3-cqa3t-bv3 (T3/R40) and Lichee Pi Nano (F1C100s)
   - Allwinner Emlid Neutis N5, Mapleboard MP130
   - Marvell Macchiatobin Single Shot (Armada 8040, no 10GbE)
   - i.MX: mtrion emCON-MX6, imx6ul-pico-pi, imx7d-sdb-reva
   - VF610: Liebherr's BK4 device, ZII SCU4 AIB board
   - i.MX7D PICO Hobbit baseboard
   - i.MX7ULP EVK board
   - NXP LX2160AQDS and LX2160ARDB boards

  Other:
   - Coresight binding updates across the board
   - CPU cooling maps updates across the board"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (648 commits)
  ARM: dts: suniv: Fix improper bindings include patch
  ARM: dts: sunxi: Enable Broadcom-based Bluetooth for multiple boards
  arm64: dts: allwinner: a64: bananapi-m64: Add Bluetooth device node
  ARM: dts: suniv: Fix improper bindings include patch
  arm64: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller
  arm64: dts: Remove unused properties from FSL QSPI driver nodes
  ARM: dts: Add spi-[tx/rx]-bus-width for the FSL QSPI controller
  ARM: dts: imx6sx-sdb: Fix the reg properties for the FSL QSPI nodes
  ARM: dts: Remove unused properties from FSL QSPI driver nodes
  arm64: dts: ti: k3-am654: Enable main domain McSPI0
  arm64: dts: ti: k3-am654: Add McSPI DT nodes
  arm64: dts: ti: k3-am654: Populate power-domain property for UART nodes
  arm64: dts: ti: k3-am654-base-board: Enable ECAP PWM
  arm64: dts: ti: k3-am65-main: Add ECAP PWM node
  arm64: dts: ti: k3-am654-base-board: Add I2C nodes
  arm64: dts: ti: am654-base-board: Add pinmux for main uart0
  arm64: dts: ti: k3-am65: Add pinctrl regions
  dt-bindings: pinctrl: k3: Introduce pinmux definitions
  ARM: dts: exynos: Specify I2S assigned clocks in proper node
  ARM: dts: exynos: Add missing CPUs in cooling maps for Odroid X2
  ...
2018-12-31 17:36:02 -08:00
Linus Torvalds
0922275ef1 ARM: SoC platform updates
SoC updates, mostly refactorings and cleanups of old legacy platforms,
 but also a few more things:
 
 New SoC support this release:
  - NXP/Freescale i.MX7ULP (1x Cortex-A7, Cortex-M4, graphics, etc)
  - Allwinner F1C100, older platform with an ARM926-EJS (ARMv5) core
 
 Cleanups of various platforms:
  - OMAP1 ams-delta does some GPIO cleanups
  - Davinci removes of at24 platform data
  - Samsung cleans up old wakeup, PM debug and secondary core boot code
  - Renesas moves around config options and PM code to drivers/soc for
    sharing with 64-bit and more consistency
  - i.MX, Broadcom and SoCFPGA all have tweaks to lowlevel debug console setups
  - SoCFPGA adds explicit selection of ARM errata and removes some unused code
 
 This tag also contains a few patches that I had queued up as fixes for
 4.20 but didn't send in before the release.
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCAAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAlwqdD8PHG9sb2ZAbGl4
 b20ubmV0AAoJEIwa5zzehBx3NQQP+gNhDCR01wy8EqmCuUn1nmoatnF9ViYER9yw
 tlWysax29ba5DGuSKkBCRooTDUNlVIMPdb7vE74CWoDVubexab67qFVJz+uRsXC5
 Gt/10STcU/i/Ga4bpkJxz47PfLHpVw1IwKUV1eoFWtLF7QQwfxiH8mr7vZj7XQo2
 3K95Adf13E6iIfbHcfBgEF0CjImUiZVq2E0DWMsE0Yti0ygVkNZeRXGHAUfQm/kD
 bBYOaHuuuiCXKp7dF9vzAC+iAqerudWYvxuHKPY0pU8T8hpj5P+UjGgCSeRdsLJz
 30MRr3t9WhPKvUYDVdIwsE5o1y1S2ZzO1FrTeRiJ8pem8PTliljXE3bIeTvu7uct
 n9lNquwvcjVutX7uYOesUmfGLGKQlCwwgg0l997OLe7/o9hzAdnptVvTciCVoanI
 r0ACjazbgIHGdb5rFLb5/Kkb+IqOc0d57CHiQacri1MN5zSQ9wLCZpXH8YEdibcI
 zY0DBlH2ga7Qh7rtlPi4I0gLNUG8jYclUwRbQYUKGlh0Bsv/J4abR49UC4byn2Vj
 kdEO1ASaNIwMJgBgSNAIoop/JhEnO+/ECJoB/pYCvNts6W/LckbMtPVhAofTIVTz
 B0pAexDPT4HW//vQ7iOmXraIeUi/HDTaT/64gWsoMnF6LntgcF79NDx4KJDXNRId
 Jra+EkHq
 =m7me
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm SoC platform updates from Olof Johansson:
 "SoC updates, mostly refactorings and cleanups of old legacy platforms,
  but also a few more things:

  New SoC support this release:
   - NXP/Freescale i.MX7ULP (1x Cortex-A7, Cortex-M4, graphics, etc)
   - Allwinner F1C100, older platform with an ARM926-EJS (ARMv5) core

  Cleanups of various platforms:
   - OMAP1 ams-delta does some GPIO cleanups
   - Davinci removes of at24 platform data
   - Samsung cleans up old wakeup, PM debug and secondary core boot code
   - Renesas moves around config options and PM code to drivers/soc for
     sharing with 64-bit and more consistency
   - i.MX, Broadcom and SoCFPGA all have tweaks to lowlevel debug
     console setups
   - SoCFPGA adds explicit selection of ARM errata and removes some
     unused code

  This also contains a few patches that I had queued up as fixes for
  4.20 but didn't send in before the release"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (68 commits)
  arm64: dts: renesas: draak: Fix CVBS input
  ARM: omap2: avoid section mismatch warning
  ARM: tegra: avoid section mismatch warning
  ARM: ks8695: fix section mismatch warning
  ARM: pxa: avoid section mismatch warning
  ARM: mmp: fix pxa168_device_usb_phy use on aspenite
  ARM: mmp: fix timer_init calls
  ARM: OMAP1: fix USB configuration for device-only setups
  ARM: OMAP1: add MMC configuration for Palm Tungsten E
  ARM: imx: fix dependencies on imx7ulp
  ARM: meson: select HAVE_ARM_TWD and ARM_GLOBAL_TIMER
  MAINTAINERS: add drivers/soc/amlogic/ to amlogic list
  ARM: imx: add initial support for imx7ulp
  ARM: debug-imx: only define DEBUG_IMX_UART_PORT if needed
  ARM: dts: Fix OMAP4430 SDP Ethernet startup
  ARM: dts: am335x-pdu001: Fix polarity of card detection input
  ARM: OMAP1: ams-delta: Fix audio permanently muted
  ARM: dts: omap5: Fix dual-role mode on Super-Speed port
  arm64: dts: rockchip: fix rk3399-rockpro64 regulator gpios
  ARM: davinci: da850-evm: remove unnecessary include
  ...
2018-12-31 17:27:54 -08:00
Stefan Wahren
4d9226fd9a arm64: defconfig: Re-enable bcm2835-thermal driver
The bcm2835-thermal driver was added with commit ac178e4280
("ARM64: bcm2835: add thermal driver to default config"). Unfortunately
this was accidentally dropped by commit eb1e6716cc
("arm64: defconfig: sync with savedefconfig"). So enable the driver again.

Fixes: eb1e6716cc ("arm64: defconfig: sync with savedefconfig")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-31 13:16:40 -08:00
Olof Johansson
8a66c20e66 Samsung DTS ARM64 changes for v4.21, part 2
Add IMEM clock controller (for Security SubSystem) and Bluetooth chip to
 Exynos5433 TM2(e) boards.
 -----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCgAuFiEE3dJiKD0RGyM7briowTdm5oaLg9cFAlwZUDoQHGtyemtAa2Vy
 bmVsLm9yZwAKCRDBN2bmhouD1w6DD/0Uew7/eRS16gt6EChKidNjbMsAeMoe790n
 +CxlMEcopK4Eab1q0gftu1D++nTNHD0k6jxYLNQgKqg+zovDg/csYZiLX4F6W1Re
 jSWNXUQvoTXKc85MvCJW2tpo5if9rEJLm+OBDSL4ih524SMzPvySp9eRFNKP7jy3
 PPgdkwkXiCtRhzIIGa/fWxYhbkJ//k6poKFRPgVwQbcqKhbRLsHZCXRe7NRzTejU
 o8hGonjoekrou9JRR0jC82qNOan3vrAH//aAZJNlYdpjRC+tW/iGMLXK9wfPMQGO
 I1SaMETdfEES+uORqaVhcz778rCoBtj9jk9S2QnKLUhpLV6d+RcLHUMkXBQ3A9ZX
 EgtuzGcedcQHQiHvn0OBwOJYfY2cmQ+cQMWgL2jiETqlJD7bpAl8Zsv5rjZ/+vdI
 WGPC/4NSukbS8Va8gqqkLs6UElSJlV18NUayBqSPDvH2UMMSwn/ILV39fSxVpG/0
 y1Tu2cpsMMwapHv3zC6RigvWZkOMx5DwD0TJg43iyCvvVhmo+9JV/GWhe7wM0ymX
 29GL2F6PmIzpzAa3HdNeS7iAqYWmMvZ5e2c+6gvc0LGoP+QO2a2eRH8sy+iVF5JU
 uk8BZbXFfVeKU+K71Z83fm0zpQZY2GD9GJZYwEKVfQ0wGoXtjeJ5iQhWPohCC15V
 coWHMUKp2A==
 =JVh0
 -----END PGP SIGNATURE-----

Merge tag 'samsung-dt64-4.21-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/late

Samsung DTS ARM64 changes for v4.21, part 2

Add IMEM clock controller (for Security SubSystem) and Bluetooth chip to
Exynos5433 TM2(e) boards.

* tag 'samsung-dt64-4.21-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: dts: exynos: Add Bluetooth chip to TM2(e) boards
  arm64: dts: exynos: Add IMEM clock controller to Exynos5433
  arm64: dts: exynos: Add all CPUs in cooling maps
  arm64: dts: exynos: Update DWC3 modules on Exynos5433 SoCs

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-31 13:11:04 -08:00
Olof Johansson
a2edaf7893 i.MX8MQ device tree support for 4.21:
- It contains the initial device tree support for i.MX8MQ - the first
    ARM64 i.MX processor.  It features a quad Cortex-A53 core that
    operates at speeds of up to 1.3 GHz, a Cortex-M4 core for
    low-power processing, a DRAM controller that supports 32-bit/16-bit
    LPDDR4/DDR4/DDR3L memory, and hardware acceleration for 4K video
    playback.
  - A couple of patches from Baruch that add watchdog device for i.MX8MQ
    enable it for imx8mq-evk board.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJcFjGjAAoJEFBXWFqHsHzOqtcIAJqypaN00zz50FHWeZG3Z6qK
 lcaseee6AMTxBZRpQdU1sZoONQ3Q4azlV4KJk/XZqCso6pqYkCc3yLrTb4y1YlBu
 usH9Ap66KkqUXjT6239bysxOAxL73wV8ekn+al52PAcjEuYAWzmKoIbnRWijyZaE
 BaLXpEInQxh8GhM7CddCZV6xbNem+d9zOm0YE46YltgZdfJGgxrTxdnWyC/8uGrX
 FK+mnjaxjWa6gsnYf4PpYXZowpzsq1MOY1Hwk8snfSJPTA3wxus9VRIyEL2KalS+
 mQ5pWwL1naRloQAa3/VLmp69+7B4MXnh0ws7WZmh/BB1JxZIes4RSE1jp1hWMJI=
 =OAS0
 -----END PGP SIGNATURE-----

Merge tag 'imx8mq-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/late

i.MX8MQ device tree support for 4.21:
 - It contains the initial device tree support for i.MX8MQ - the first
   ARM64 i.MX processor.  It features a quad Cortex-A53 core that
   operates at speeds of up to 1.3 GHz, a Cortex-M4 core for
   low-power processing, a DRAM controller that supports 32-bit/16-bit
   LPDDR4/DDR4/DDR3L memory, and hardware acceleration for 4K video
   playback.
 - A couple of patches from Baruch that add watchdog device for i.MX8MQ
   enable it for imx8mq-evk board.

* tag 'imx8mq-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  arm64: dts: imx8mq-evk: enable watchdog
  arm64: dts: imx8mq: add watchdog devices
  MAINTAINERS: add i.MX8 DT path to i.MX architecture
  arm64: add support for i.MX8M EVK board
  arm64: add basic DTS for i.MX8MQ
  arm64: add basic Kconfig symbols for i.MX8
  arm64: dts: ls1046a: add qdma device tree nodes
  arm64: dts: ls1043a: add qdma device tree nodes
  arm64: dts: ls1088a: Add missing dma-ranges property
  arm64: dts: ls1088a: Move fsl-mc node
  arm64: dts: fsl: Add all CPUs in cooling maps
  arm64: dts: Add support for NXP LS1028A SoC
  arm64: dts: layerscape: removed compatible string "snps,dw-pcie"
  arm64: dts: fsl: Add the status property disable PCIe
  arm64: dts: ls1012a: Add FRWY-LS1012A board support
  dt-bindings: Add binding for i.MX8MQ CCM
  arm64: dts: add LX2160AQDS board support
  arm64: dts: add LX2160ARDB board support
  arm64: dts: add QorIQ LX2160A SoC support

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-31 13:07:31 -08:00
Olof Johansson
cac1fc8fb5 Merge branch 'fixes' into next/soc
Merge in fixes here, since the last batch didn't make it in before the
release of 4.20, and we might as well group them with this set of
patches.

* fixes: (822 commits)
  arm64: dts: renesas: draak: Fix CVBS input
  ARM: dts: Fix OMAP4430 SDP Ethernet startup
  ARM: dts: am335x-pdu001: Fix polarity of card detection input
  ARM: OMAP1: ams-delta: Fix audio permanently muted
  ARM: dts: omap5: Fix dual-role mode on Super-Speed port
  arm64: dts: rockchip: fix rk3399-rockpro64 regulator gpios
  ARM: dts: imx7d-nitrogen7: Fix the description of the Wifi clock
  ARM: imx: update the cpu power up timing setting on i.mx6sx
  Revert "arm64: dts: marvell: add CPU Idle power state support on Armada 7K/8K"
  ARM: dts: imx7d-pico: Describe the Wifi clock
  ARM: dts: realview: Fix some more duplicate regulator nodes
  MAINTAINERS: update entry for MMP platform
  ARM: mmp/mmp2: fix cpu_is_mmp2() on mmp2-dt
  MAINTAINERS: mediatek: Update SoC entry
  ARM: dts: bcm2837: Fix polarity of wifi reset GPIOs
  + Linux 4.20-rc5

Signed-off-by: Olof Johansson <olof@lixom.net>
2018-12-31 11:54:03 -08:00
Linus Torvalds
495d714ad1 Tracing changes for v4.21:
- Rework of the kprobe/uprobe and synthetic events to consolidate all
    the dynamic event code. This will make changes in the future easier.
 
  - Partial rewrite of the function graph tracing infrastructure.
    This will allow for multiple users of hooking onto functions
    to get the callback (return) of the function. This is the ground
    work for having kprobes and function graph tracer using one code base.
 
  - Clean up of the histogram code that will facilitate adding more
    features to the histograms in the future.
 
  - Addition of str_has_prefix() and a few use cases. There currently
    is a similar function strstart() that is used in a few places, but
    only returns a bool and not a length. These instances will be
    removed in the future to use str_has_prefix() instead.
 
  - A few other various clean ups as well.
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCXCawlBQccm9zdGVkdEBn
 b29kbWlzLm9yZwAKCRAp5XQQmuv6qhbcAQCFeT0fWWTUxofBQz5jqsHaRnVg21+9
 X4sTldYRYEn4YgEAmWOyiwq7zvrsAu4ZwkNBMeqxn3tVymYHiGOGe3Y4BAw=
 =u96o
 -----END PGP SIGNATURE-----

Merge tag 'trace-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:

 - Rework of the kprobe/uprobe and synthetic events to consolidate all
   the dynamic event code. This will make changes in the future easier.

 - Partial rewrite of the function graph tracing infrastructure. This
   will allow for multiple users of hooking onto functions to get the
   callback (return) of the function. This is the ground work for having
   kprobes and function graph tracer using one code base.

 - Clean up of the histogram code that will facilitate adding more
   features to the histograms in the future.

 - Addition of str_has_prefix() and a few use cases. There currently is
   a similar function strstart() that is used in a few places, but only
   returns a bool and not a length. These instances will be removed in
   the future to use str_has_prefix() instead.

 - A few other various clean ups as well.

* tag 'trace-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (57 commits)
  tracing: Use the return of str_has_prefix() to remove open coded numbers
  tracing: Have the historgram use the result of str_has_prefix() for len of prefix
  tracing: Use str_has_prefix() instead of using fixed sizes
  tracing: Use str_has_prefix() helper for histogram code
  string.h: Add str_has_prefix() helper function
  tracing: Make function ‘ftrace_exports’ static
  tracing: Simplify printf'ing in seq_print_sym
  tracing: Avoid -Wformat-nonliteral warning
  tracing: Merge seq_print_sym_short() and seq_print_sym_offset()
  tracing: Add hist trigger comments for variable-related fields
  tracing: Remove hist trigger synth_var_refs
  tracing: Use hist trigger's var_ref array to destroy var_refs
  tracing: Remove open-coding of hist trigger var_ref management
  tracing: Use var_refs[] for hist trigger reference checking
  tracing: Change strlen to sizeof for hist trigger static strings
  tracing: Remove unnecessary hist trigger struct field
  tracing: Fix ftrace_graph_get_ret_stack() to use task and not current
  seq_buf: Use size_t for len in seq_buf_puts()
  seq_buf: Make seq_buf_puts() null-terminate the buffer
  arm64: Use ftrace_graph_get_ret_stack() instead of curr_ret_stack
  ...
2018-12-31 11:46:59 -08:00
Christophe Leroy
cc0282975b kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops
checkpatch.pl reports the following:

  WARNING: struct kgdb_arch should normally be const
  #28: FILE: arch/mips/kernel/kgdb.c:397:
  +struct kgdb_arch arch_kgdb_ops = {

This report makes sense, as all other ops struct, this
one should also be const. This patch does the change.

Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: x86@kernel.org
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:33:06 +00:00
Douglas Anderson
3cd99ac355 kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function()
When I had lockdep turned on and dropped into kgdb I got a nice splat
on my system.  Specifically it hit:
  DEBUG_LOCKS_WARN_ON(current->hardirq_context)

Specifically it looked like this:
  sysrq: SysRq : DEBUG
  ------------[ cut here ]------------
  DEBUG_LOCKS_WARN_ON(current->hardirq_context)
  WARNING: CPU: 0 PID: 0 at .../kernel/locking/lockdep.c:2875 lockdep_hardirqs_on+0xf0/0x160
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.0 #27
  pstate: 604003c9 (nZCv DAIF +PAN -UAO)
  pc : lockdep_hardirqs_on+0xf0/0x160
  ...
  Call trace:
   lockdep_hardirqs_on+0xf0/0x160
   trace_hardirqs_on+0x188/0x1ac
   kgdb_roundup_cpus+0x14/0x3c
   kgdb_cpu_enter+0x53c/0x5cc
   kgdb_handle_exception+0x180/0x1d4
   kgdb_compiled_brk_fn+0x30/0x3c
   brk_handler+0x134/0x178
   do_debug_exception+0xfc/0x178
   el1_dbg+0x18/0x78
   kgdb_breakpoint+0x34/0x58
   sysrq_handle_dbg+0x54/0x5c
   __handle_sysrq+0x114/0x21c
   handle_sysrq+0x30/0x3c
   qcom_geni_serial_isr+0x2dc/0x30c
  ...
  ...
  irq event stamp: ...45
  hardirqs last  enabled at (...44): [...] __do_softirq+0xd8/0x4e4
  hardirqs last disabled at (...45): [...] el1_irq+0x74/0x130
  softirqs last  enabled at (...42): [...] _local_bh_enable+0x2c/0x34
  softirqs last disabled at (...43): [...] irq_exit+0xa8/0x100
  ---[ end trace adf21f830c46e638 ]---

Looking closely at it, it seems like a really bad idea to be calling
local_irq_enable() in kgdb_roundup_cpus().  If nothing else that seems
like it could violate spinlock semantics and cause a deadlock.

Instead, let's use a private csd alongside
smp_call_function_single_async() to round up the other CPUs.  Using
smp_call_function_single_async() doesn't require interrupts to be
enabled so we can remove the offending bit of code.

In order to avoid duplicating this across all the architectures that
use the default kgdb_roundup_cpus(), we'll add a "weak" implementation
to debug_core.c.

Looking at all the people who previously had copies of this code,
there were a few variants.  I've attempted to keep the variants
working like they used to.  Specifically:
* For arch/arc we passed NULL to kgdb_nmicallback() instead of
  get_irq_regs().
* For arch/mips there was a bit of extra code around
  kgdb_nmicallback()

NOTE: In this patch we will still get into trouble if we try to round
up a CPU that failed to round up before.  We'll try to round it up
again and potentially hang when we try to grab the csd lock.  That's
not new behavior but we'll still try to do better in a future patch.

Suggested-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:28:02 +00:00
Douglas Anderson
9ef7fa507d kgdb: Remove irq flags from roundup
The function kgdb_roundup_cpus() was passed a parameter that was
documented as:

> the flags that will be used when restoring the interrupts. There is
> local_irq_save() call before kgdb_roundup_cpus().

Nobody used those flags.  Anyone who wanted to temporarily turn on
interrupts just did local_irq_enable() and local_irq_disable() without
looking at them.  So we can definitely remove the flags.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2018-12-30 08:24:21 +00:00
Linus Torvalds
195303136f Kconfig file consolidation for v4.21
Consolidation of bus (PCI, PCMCIA, EISA, RapidIO) config entries
 by Christoph Hellwig.
 
 Currently, every architecture that wants to provide common peripheral
 busses needs to add some boilerplate code and include the right Kconfig
 files. This series instead just selects the presence (when needed) and
 then handles everything in the bus-specific Kconfig file under drivers/.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJcJilwAAoJED2LAQed4NsGt1YP/RMTEUqbCSwS/CnTLrE+aVTC
 O2aWwB80ZlVwpeBbHLW5/M88OvOev0UaCr+gyzgpFRl5ITzS7Jevb8VbpGzblbH7
 bFxIEyZFGQiy9oEWw3Lfu9JRSsLm3jNo7hkmdBSn2Rw3KkEd/YF7K3q9GuA7BpCS
 ZxAirebvEpr4KYEzkuc57NqCYx2Tc8G+JWr5D7pZCFaq9vxYt3TddGqw/c7iQVSQ
 1Og1809IdhGyCSlA/ExfaqaBMaJHMRAOHX5GgkqZw1EbFcizUFhAAsKCrGL5nBtX
 NiWF9jhgHR1M+L69jfctOstrmGQD2KicNgWQf1aS5RQkPfjuqIKGT/i9g6J1pVyX
 TaW1J36Hcl8PpsKoPBnnrixd1T41O3/PuqtEJRm7LCBYOQiwS9sEmLO09RDRjER8
 SPAAyvkhE8oq+0RHiTYN4tm8dyJc1djZ5wzgLnwFPAnU6SR+mbN02RzBMsYZXD+x
 RNbBSGBRJFQDBw6Rn+ktcIQvcKYmUqe1k1YNHMy6kG3QqvhBaDy+8PA/YjIKPQYQ
 B/NNUAMEJMys1OQrRL2UDXb2ysaCpzwMmlrBW2IwYsQrX5OwbPkNuQ5Mbe1Lr+mc
 4NXR+HubvojsHaAby+OhFbrUX2Jcz3wqYj7aannb9sMRmw0VJXV5dPYUqje3ZhPS
 P2AovKT8O9nWsEttqER5
 =WxId
 -----END PGP SIGNATURE-----

Merge tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kconfig file consolidation from Masahiro Yamada:
 "Consolidation of bus (PCI, PCMCIA, EISA, RapidIO) config entries by
  Christoph Hellwig.

  Currently, every architecture that wants to provide common peripheral
  busses needs to add some boilerplate code and include the right
  Kconfig files. This series instead just selects the presence (when
  needed) and then handles everything in the bus-specific Kconfig file
  under drivers/"

* tag 'kconfig-v4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  pcmcia: remove per-arch PCMCIA config entry
  eisa: consolidate EISA Kconfig entry in drivers/eisa
  rapidio: consolidate RAPIDIO config entry in drivers/rapidio
  pcmcia: allow PCMCIA support independent of the architecture
  PCI: consolidate the PCI_SYSCALL symbol
  PCI: consolidate the PCI_DOMAINS and PCI_DOMAINS_GENERIC config options
  PCI: consolidate PCI config entry in drivers/pci
  MIPS: remove the HT_PCI config option
2018-12-29 13:40:29 -08:00
Linus Torvalds
769e47094d Kconfig updates for v4.21
- support -y option for merge_config.sh to avoid downgrading =y to =m
 
  - remove S_OTHER symbol type, and touch include/config/*.h files correctly
 
  - fix file name and line number in lexer warnings
 
  - fix memory leak when EOF is encountered in quotation
 
  - resolve all shift/reduce conflicts of the parser
 
  - warn no new line at end of file
 
  - make 'source' statement more strict to take only string literal
 
  - rewrite the lexer and remove the keyword lookup table
 
  - convert to SPDX License Identifier
 
  - compile C files independently instead of including them from zconf.y
 
  - fix various warnings of gconfig
 
  - misc cleanups
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJcJieuAAoJED2LAQed4NsGHlIP/1s0fQ86XD9dIMyHzAO0gh2f
 7rylfe2kEXJgIzJ0DyZdLu4iZtwbkEUqTQrRS1abriNGVemPkfBAnZdM5d92lOQX
 3iREa700AJ2xo7V7gYZ6AbhZoG3p0S9U9Q2qE5S+tFTe8c2Gy4xtjnODF+Vel85r
 S0P8tF5sE1/d00lm+yfMI/CJVfDjyNaMm+aVEnL0kZTPiRkaktjWgo6Fc2p4z1L5
 HFmMMP6/iaXmRZ+tHJGPQ2AT70GFVZw5ePxPcl50EotUP25KHbuUdzs8wDpYm3U/
 rcESVsIFpgqHWmTsdBk6dZk0q8yFZNkMlkaP/aYukVZpUn/N6oAXgTFckYl8dmQL
 fQBkQi6DTfr9EBPVbj18BKm7xI3Y4DdQ2fzTfYkJ2XwNRGFA5r9N3sjd7ZTVGjxC
 aeeMHCwvGdSx1x8PeZAhZfsUHW8xVDMSQiT713+ljBY+6cwzA+2NF0kP7B6OAqwr
 ETFzd4Xu2/lZcL7gQRH8WU3L2S5iedmDG6RnZgJMXI0/9V4qAA+nlsWaCgnl1TgA
 mpxYlLUMrd6AUJevE34FlnyFdk8IMn9iKRFsvF0f3doO5C7QzTVGqFdJu5a0CuWO
 4NBJvZjFT8/4amoWLfnDlfApWXzTfwLbKG+r6V2F30fLuXpYg5LxWhBoGRPYLZSq
 oi4xN1Mpx3TvXz6WcKVZ
 =r3Fl
 -----END PGP SIGNATURE-----

Merge tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kconfig updates from Masahiro Yamada:

 - support -y option for merge_config.sh to avoid downgrading =y to =m

 - remove S_OTHER symbol type, and touch include/config/*.h files correctly

 - fix file name and line number in lexer warnings

 - fix memory leak when EOF is encountered in quotation

 - resolve all shift/reduce conflicts of the parser

 - warn no new line at end of file

 - make 'source' statement more strict to take only string literal

 - rewrite the lexer and remove the keyword lookup table

 - convert to SPDX License Identifier

 - compile C files independently instead of including them from zconf.y

 - fix various warnings of gconfig

 - misc cleanups

* tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits)
  kconfig: surround dbg_sym_flags with #ifdef DEBUG to fix gconf warning
  kconfig: split images.c out of qconf.cc/gconf.c to fix gconf warnings
  kconfig: add static qualifiers to fix gconf warnings
  kconfig: split the lexer out of zconf.y
  kconfig: split some C files out of zconf.y
  kconfig: convert to SPDX License Identifier
  kconfig: remove keyword lookup table entirely
  kconfig: update current_pos in the second lexer
  kconfig: switch to ASSIGN_VAL state in the second lexer
  kconfig: stop associating kconf_id with yylval
  kconfig: refactor end token rules
  kconfig: stop supporting '.' and '/' in unquoted words
  treewide: surround Kconfig file paths with double quotes
  microblaze: surround string default in Kconfig with double quotes
  kconfig: use T_WORD instead of T_VARIABLE for variables
  kconfig: use specific tokens instead of T_ASSIGN for assignments
  kconfig: refactor scanning and parsing "option" properties
  kconfig: use distinct tokens for type and default properties
  kconfig: remove redundant token defines
  kconfig: rename depends_list to comment_option_list
  ...
2018-12-29 13:03:29 -08:00
Linus Torvalds
668c35f69c Kbuild updates for v4.21
Kbuild core:
  - remove unneeded $(call cc-option,...) switches
  - consolidate Clang compiler flags into CLANG_FLAGS
  - announce the deprecation of SUBDIRS
  - fix single target build for external module
  - simplify the dependencies of 'prepare' stage targets
  - allow fixdep to directly write to .*.cmd files
  - simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS
  - change if_changed_rule to accept multi-line recipe
  - move .SECONDARY special target to scripts/Kbuild.include
  - remove redundant 'set -e'
  - improve parallel execution for CONFIG_HEADERS_CHECK
  - misc cleanups
 
 Treewide fixes and cleanups
  - set Clang flags correctly for PowerPC boot images
  - fix UML build error with CONFIG_GCC_PLUGINS
  - remove unneeded patterns from .gitignore files
  - refactor firmware/Makefile
  - remove unneeded rules for *offsets.s
  - avoid unneeded regeneration of intermediate .s files
  - clean up ./Kbuild
 
 Modpost:
  - remove unused -M, -K options
  - fix false positive warnings about section mismatch
  - use simple devtable lookup instead of linker magic
  - misc cleanups
 
 Coccinelle:
  - relax boolinit.cocci checks for overall consistency
  - fix warning messages of boolinit.cocci
 
 Other tools:
  - improve -dirty check of scripts/setlocalversion
  - add a tool to generate compile_commands.json from .*.cmd files
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJcJiVeAAoJED2LAQed4NsGXEMP/1fdkBfZGxYlxp4w1tEBeRKZ
 GInxxMfHiHZlu7nFPQ3k1mncczZjeLbnKcLaybnPmqBSfQe1F7tN0ux1sHtWkVfI
 DvqoKaHObZ3lEMEVxCHXQ2bKrN/j9nB2xSxzr4dvc9DscW8dwKElZuKVE7nHKdhl
 z70xsalxHGEGY6hptJrucbv8KTBOSleZ8Gaat79sEDkDSLCTjxXB3WcVMWqDT0M/
 IqN5QCwiPjZC3UCwuqq6+vnG1gyvDUORcbrVgHrBIKxLYAABYzugB5IlLpi8B31C
 ZUDmijSTandHd4SG5gw5uZoyYuK4YhZeI7g4yNyXSqnPurmcJxrGdpiuwRcE7xet
 5yB2uaNbAFO6Fbz4gUdDEvryA9IZEPPn1Z0Btfpp7UOxiWEqE61oHReCNdkiad94
 Oonl+ROZw5UOT3AZD3xCZTf9bTnQoCFccHTmnbaKqqSiDWxxLUXum7sNfnJ6GXEb
 fNQDuwuxtsPStaWoU93QNrGyl5e8jYTKFdphUCnZZ2/hE8ygoQ06PYmeBAk+UKfN
 UI2IqR8PHgmA97XJg+fHhbw6X4nQcPsg/usLqxGItAZNO2O4uXgaN24dOcHG74Bu
 2Dk/gQQB2sVB/Dxfmlaxvvj98MVg7IMtpusAT2bQ7miiSS3EqPFT8KQMZYLICWuZ
 u7QQe20yCho3ZULmsRwH
 =0PCt
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:
 "Kbuild core:
   - remove unneeded $(call cc-option,...) switches
   - consolidate Clang compiler flags into CLANG_FLAGS
   - announce the deprecation of SUBDIRS
   - fix single target build for external module
   - simplify the dependencies of 'prepare' stage targets
   - allow fixdep to directly write to .*.cmd files
   - simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS
   - change if_changed_rule to accept multi-line recipe
   - move .SECONDARY special target to scripts/Kbuild.include
   - remove redundant 'set -e'
   - improve parallel execution for CONFIG_HEADERS_CHECK
   - misc cleanups

  Treewide fixes and cleanups
   - set Clang flags correctly for PowerPC boot images
   - fix UML build error with CONFIG_GCC_PLUGINS
   - remove unneeded patterns from .gitignore files
   - refactor firmware/Makefile
   - remove unneeded rules for *offsets.s
   - avoid unneeded regeneration of intermediate .s files
   - clean up ./Kbuild

  Modpost:
   - remove unused -M, -K options
   - fix false positive warnings about section mismatch
   - use simple devtable lookup instead of linker magic
   - misc cleanups

  Coccinelle:
   - relax boolinit.cocci checks for overall consistency
   - fix warning messages of boolinit.cocci

  Other tools:
   - improve -dirty check of scripts/setlocalversion
   - add a tool to generate compile_commands.json from .*.cmd files"

* tag 'kbuild-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (51 commits)
  kbuild: remove unused cmd_gentimeconst
  kbuild: remove $(obj)/ prefixes in ./Kbuild
  treewide: add intermediate .s files to targets
  treewide: remove explicit rules for *offsets.s
  firmware: refactor firmware/Makefile
  firmware: remove unnecessary patterns from .gitignore
  scripts: remove unnecessary ihex2fw and check-lc_ctypes from .gitignore
  um: remove unused filechk_gen_header in Makefile
  scripts: add a tool to produce a compile_commands.json file
  kbuild: add -Werror=implicit-int flag unconditionally
  kbuild: add -Werror=strict-prototypes flag unconditionally
  kbuild: add -fno-PIE flag unconditionally
  scripts: coccinelle: Correct warning message
  scripts: coccinelle: only suggest true/false in files that already use them
  kbuild: handle part-of-module correctly for *.ll and *.symtypes
  kbuild: refactor part-of-module
  kbuild: refactor quiet_modtag
  kbuild: remove redundant quiet_modtag for $(obj-m)
  kbuild: refactor Makefile.asm-generic
  user/Makefile: Fix typo and capitalization in comment section
  ...
2018-12-29 12:03:17 -08:00