Commit Graph

1492 Commits

Author SHA1 Message Date
Linus Torvalds
e9a83bd232 It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro.  These create more
    than the usual number of simple but annoying merge conflicts with other
    trees, unfortunately.  He has a lot more of these waiting on the wings
    that, I think, will go to you directly later on.
 
  - A new document on how to use merges and rebases in kernel repos, and one
    on Spectre vulnerabilities.
 
  - Various improvements to the build system, including automatic markup of
    function() references because some people, for reasons I will never
    understand, were of the opinion that :c:func:``function()`` is
    unattractive and not fun to type.
 
  - We now recommend using sphinx 1.7, but still support back to 1.4.
 
  - Lots of smaller improvements, warning fixes, typo fixes, etc.
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Merge tag 'docs-5.3' of git://git.lwn.net/linux

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

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

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

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

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

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

* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
  docs: automarkup.py: ignore exceptions when seeking for xrefs
  docs: Move binderfs to admin-guide
  Disable Sphinx SmartyPants in HTML output
  doc: RCU callback locks need only _bh, not necessarily _irq
  docs: format kernel-parameters -- as code
  Doc : doc-guide : Fix a typo
  platform: x86: get rid of a non-existent document
  Add the RCU docs to the core-api manual
  Documentation: RCU: Add TOC tree hooks
  Documentation: RCU: Rename txt files to rst
  Documentation: RCU: Convert RCU UP systems to reST
  Documentation: RCU: Convert RCU linked list to reST
  Documentation: RCU: Convert RCU basic concepts to reST
  docs: filesystems: Remove uneeded .rst extension on toctables
  scripts/sphinx-pre-install: fix out-of-tree build
  docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
  Documentation: PGP: update for newer HW devices
  Documentation: Add section about CPU vulnerabilities for Spectre
  Documentation: platform: Delete x86-laptop-drivers.txt
  docs: Note that :c:func: should no longer be used
  ...
2019-07-09 12:34:26 -07:00
Linus Torvalds
884922591e tpmdd updates for Linux v5.3
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Merge tag 'tpmdd-next-20190625' of git://git.infradead.org/users/jjs/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "This contains two critical bug fixes and support for obtaining TPM
  events triggered by ExitBootServices().

  For the latter I have to give a quite verbose explanation not least
  because I had to revisit all the details myself to remember what was
  going on in Matthew's patches.

  The preboot software stack maintains an event log that gets entries
  every time something gets hashed to any of the PCR registers. What
  gets hashed could be a component to be run or perhaps log of some
  actions taken just to give couple of coarse examples. In general,
  anything relevant for the boot process that the preboot software does
  gets hashed and a log entry with a specific event type [1].

  The main application for this is remote attestation and the reason why
  it is useful is nicely put in the very first section of [1]:

     "Attestation is used to provide information about the platform’s
      state to a challenger. However, PCR contents are difficult to
      interpret; therefore, attestation is typically more useful when
      the PCR contents are accompanied by a measurement log. While not
      trusted on their own, the measurement log contains a richer set of
      information than do the PCR contents. The PCR contents are used to
      provide the validation of the measurement log."

  Because EFI_TCG2_PROTOCOL.GetEventLog() is not available after calling
  ExitBootServices(), Linux EFI stub copies the event log to a custom
  configuration table. Unfortunately, ExitBootServices() also generates
  events and obviously these events do not get copied to that table.
  Luckily firmware does this for us by providing a configuration table
  identified by EFI_TCG2_FINAL_EVENTS_TABLE_GUID.

  This essentially contains necessary changes to provide the full event
  log for the use the user space that is concatenated from these two
  partial event logs [2]"

[1] https://trustedcomputinggroup.org/resource/pc-client-specific-platform-firmware-profile-specification/
[2] The final concatenation is done in drivers/char/tpm/eventlog/efi.c

* tag 'tpmdd-next-20190625' of git://git.infradead.org/users/jjs/linux-tpmdd:
  tpm: Don't duplicate events from the final event log in the TCG2 log
  Abstract out support for locating an EFI config table
  tpm: Fix TPM 1.2 Shutdown sequence to prevent future TPM operations
  efi: Attempt to get the TCG2 event log in the boot stub
  tpm: Append the final event log to the TPM event log
  tpm: Reserve the TPM final events table
  tpm: Abstract crypto agile event size calculations
  tpm: Actually fail on TPM errors during "get random"
2019-07-08 18:47:42 -07:00
Linus Torvalds
a7211bc9f3 Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
 "Four fixes:
   - fix a kexec crash on arm64
   - fix a reboot crash on some Android platforms
   - future-proof the code for upcoming ACPI 6.2 changes
   - fix a build warning on x86"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efibc: Replace variable set function in notifier call
  x86/efi: fix a -Wtype-limits compilation warning
  efi/bgrt: Drop BGRT status field reserved bits check
  efi/memreserve: deal with memreserve entries in unmapped memory
2019-06-29 19:32:09 +08:00
Matthew Garrett
166a2809d6 tpm: Don't duplicate events from the final event log in the TCG2 log
After the first call to GetEventLog() on UEFI systems using the TCG2
crypto agile log format, any further log events (other than those
triggered by ExitBootServices()) will be logged in both the main log and
also in the Final Events Log. While the kernel only calls GetEventLog()
immediately before ExitBootServices(), we can't control whether earlier
parts of the boot process have done so. This will result in log entries
that exist in both logs, and so the current approach of simply appending
the Final Event Log to the main log will result in events being
duplicated.

We can avoid this problem by looking at the size of the Final Event Log
just before we call ExitBootServices() and exporting this to the main
kernel. The kernel can then skip over all events that occured before
ExitBootServices() and only append events that were not also logged to
the main log.

Signed-off-by: Matthew Garrett <mjg59@google.com>
Reported-by: Joe Richey <joerichey@google.com>
Suggested-by: Joe Richey <joerichey@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-06-24 23:57:50 +03:00
Matthew Garrett
82d736ac56 Abstract out support for locating an EFI config table
We want to grab a pointer to the TPM final events table, so abstract out
the existing code for finding an FDT table and make it generic.

Signed-off-by: Matthew Garrett <mjg59@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-06-24 23:57:49 +03:00
Matthew Garrett
6b03261902 efi: Attempt to get the TCG2 event log in the boot stub
Right now we only attempt to obtain the SHA1-only event log. The
protocol also supports a crypto agile log format, which contains digests
for all algorithms in use. Attempt to obtain this first, and fall back
to obtaining the older format if the system doesn't support it. This is
lightly complicated by the event sizes being variable (as we don't know
in advance which algorithms are in use), and the interface giving us
back a pointer to the start of the final entry rather than a pointer to
the end of the log - as a result, we need to parse the final entry to
figure out its length in order to know how much data to copy up to the
OS.

Signed-off-by: Matthew Garrett <mjg59@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Bartosz Szczepanek <bsz@semihalf.com>
Tested-by: Bartosz Szczepanek <bsz@semihalf.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-06-24 23:57:49 +03:00
Matthew Garrett
c46f340569 tpm: Reserve the TPM final events table
UEFI systems provide a boot services protocol for obtaining the TPM
event log, but this is unusable after ExitBootServices() is called.
Unfortunately ExitBootServices() itself triggers additional TPM events
that then can't be obtained using this protocol. The platform provides a
mechanism for the OS to obtain these events by recording them to a
separate UEFI configuration table which the OS can then map.

Unfortunately this table isn't self describing in terms of providing its
length, so we need to parse the events inside it to figure out how long
it is. Since the table isn't mapped at this point, we need to extend the
length calculation function to be able to map the event as it goes
along.

(Fixes by Bartosz Szczepanek <bsz@semihalf.com>)

Signed-off-by: Matthew Garrett <mjg59@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Bartosz Szczepanek <bsz@semihalf.com>
Tested-by: Bartosz Szczepanek <bsz@semihalf.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-06-24 23:57:49 +03:00
Tian Baofeng
975a6166a8 efibc: Replace variable set function in notifier call
Replace the variable set function from "efivar_entry_set" to
"efivar_entry_set_safe" in efibc panic notifier.
In safe function parameter "block" will set to false
and will call "efivar_entry_set_nonblocking"to set efi variables.
efivar_entry_set_nonblocking is guaranteed to
not block and is suitable for calling from crash/panic handlers.
In UEFI android platform, when warm reset happens,
with this change, efibc will not block the reboot process.
Otherwise, set variable will call queue work and send to other offlined
cpus then cause another panic, finally will cause reboot failure.

Signed-off-by: Tian Baofeng <baofeng.tian@intel.com>
Signed-off-by: Luo XinanX <xinanx.luo@intel.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-06-22 10:24:57 +02:00
Linus Torvalds
c884d8ac7f SPDX update for 5.2-rc6
Another round of SPDX updates for 5.2-rc6
 
 Here is what I am guessing is going to be the last "big" SPDX update for
 5.2.  It contains all of the remaining GPLv2 and GPLv2+ updates that
 were "easy" to determine by pattern matching.  The ones after this are
 going to be a bit more difficult and the people on the spdx list will be
 discussing them on a case-by-case basis now.
 
 Another 5000+ files are fixed up, so our overall totals are:
 	Files checked:            64545
 	Files with SPDX:          45529
 
 Compared to the 5.1 kernel which was:
 	Files checked:            63848
 	Files with SPDX:          22576
 This is a huge improvement.
 
 Also, we deleted another 20000 lines of boilerplate license crud, always
 nice to see in a diffstat.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull still more SPDX updates from Greg KH:
 "Another round of SPDX updates for 5.2-rc6

  Here is what I am guessing is going to be the last "big" SPDX update
  for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates
  that were "easy" to determine by pattern matching. The ones after this
  are going to be a bit more difficult and the people on the spdx list
  will be discussing them on a case-by-case basis now.

  Another 5000+ files are fixed up, so our overall totals are:
	Files checked:            64545
	Files with SPDX:          45529

  Compared to the 5.1 kernel which was:
	Files checked:            63848
	Files with SPDX:          22576

  This is a huge improvement.

  Also, we deleted another 20000 lines of boilerplate license crud,
  always nice to see in a diffstat"

* tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits)
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485
  ...
2019-06-21 09:58:42 -07:00
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Thomas Gleixner
97873a3daf treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497
Based on 1 normalized pattern(s):

  this file is part of the linux kernel and is made available under
  the terms of the gnu general public license version 2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 28 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.534229504@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:53 +02:00
Arnd Bergmann
cad47b322d firmware: trusted_foundations: add ARMv7 dependency
The "+sec" extension is invalid for older ARM architectures, but
the code can now be built on any ARM configuration:

/tmp/trusted_foundations-2d0882.s: Assembler messages:
/tmp/trusted_foundations-2d0882.s:194: Error: architectural extension `sec' is not allowed for the current base architecture
/tmp/trusted_foundations-2d0882.s:201: Error: selected processor does not support `smc #0' in ARM mode
/tmp/trusted_foundations-2d0882.s:213: Error: architectural extension `sec' is not allowed for the current base architecture
/tmp/trusted_foundations-2d0882.s:220: Error: selected processor does not support `smc #0' in ARM mode

Add a dependency on ARMv7 for the build.

Fixes: 4cb5d9eca1 ("firmware: Move Trusted Foundations support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-18 03:20:35 -07:00
Olof Johansson
4bded29983 i.MX fixes for 5.2:
- A build fix for soc-imx8 driver which needs SOC_BUS support.  To
    avoid dealing with the dependency for every single i.MX SoC bus
    driver, we selects at from architecture level.
  - A fix on i.MX SCU firmware driver to ensure SCU irq is enabled only
    after IPC is ready.
  - A regression fix on cpuidle-imx6sx driver, which causes some
    characters loss on serial communication.
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Merge tag 'imx-fixes-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 5.2:
 - A build fix for soc-imx8 driver which needs SOC_BUS support.  To
   avoid dealing with the dependency for every single i.MX SoC bus
   driver, we selects at from architecture level.
 - A fix on i.MX SCU firmware driver to ensure SCU irq is enabled only
   after IPC is ready.
 - A regression fix on cpuidle-imx6sx driver, which causes some
   characters loss on serial communication.

* tag 'imx-fixes-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: cpuidle-imx6sx: Restrict the SW2ISO increase to i.MX6SX
  firmware: imx: SCU irq should ONLY be enabled after SCU IPC is ready
  arm64: imx: Fix build error without CONFIG_SOC_BUS

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-16 13:26:55 -07:00
Mauro Carvalho Chehab
cd238effef docs: kbuild: convert docs to ReST and rename to *.rst
The kbuild documentation clearly shows that the documents
there are written at different times: some use markdown,
some use their own peculiar logic to split sections.

Convert everything to ReST without affecting too much
the author's style and avoiding adding uneeded markups.

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

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

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-14 14:21:21 -06:00
Hans de Goede
a483fcab38 efi/bgrt: Drop BGRT status field reserved bits check
Starting with ACPI 6.2 bits 1 and 2 of the BGRT status field are no longer
reserved. These bits are now used to indicate if the image needs to be
rotated before being displayed.

The first device using these bits has now shown up (the GPD MicroPC) and
the reserved bits check causes us to reject the valid BGRT table on this
device.

Rather then changing the reserved bits check, allowing only the 2 new bits,
instead just completely remove it so that we do not end up with a similar
problem when more bits are added in the future.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-06-11 16:13:05 +02:00
Ard Biesheuvel
18df7577ad efi/memreserve: deal with memreserve entries in unmapped memory
Ensure that the EFI memreserve entries can be accessed, even if they
are located in memory that the kernel (e.g., a crashkernel) omits from
the linear map.

Fixes: 80424b02d4 ("efi: Reduce the amount of memblock reservations ...")
Cc: <stable@vger.kernel.org> # 5.0+
Reported-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Reviewed-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Tested-by: Jonathan Richardson <jonathan.richardson@broadcom.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-06-11 16:07:19 +02:00
Thomas Gleixner
3c910ecbdd treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation you should have received a
  copy of the gnu general public license along with this program if
  not see http www gnu org licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 30 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.962665879@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:18 +02:00
Thomas Gleixner
55716d2643 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
Based on 1 normalized pattern(s):

  this file is released under the gplv2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 68 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190114.292346262@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:16 +02:00
Thomas Gleixner
2025cf9e19 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms and conditions of the gnu general public license
  version 2 as published by the free software foundation this program
  is distributed in the hope it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 263 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00
Thomas Gleixner
d95236782b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 287
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license v2 0 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 23 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.115786599@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00
Thomas Gleixner
97fb5e8d9b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 and
  only version 2 as published by the free software foundation this
  program is distributed in the hope that it will be useful but
  without any warranty without even the implied warranty of
  merchantability or fitness for a particular purpose see the gnu
  general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 294 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00
Thomas Gleixner
08dbd0f8ef treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 and
  only version 2 as published by the free software foundation this
  program is distributed in the hope that it will be useful but
  without any warranty without even the implied warranty of
  merchantability or fitness for a particular purpose see the gnu
  general public license for more details you should have received a
  copy of the gnu general public license along with this program if
  not write to the free software foundation inc 51 franklin street
  fifth floor boston ma 02110 1301 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 94 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141334.043630402@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:30:29 +02:00
Linus Torvalds
af0424522d Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
 "Two EFI fixes: a quirk for weird systabs, plus add more robust error
  handling in the old 1:1 mapping code"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: Allow the number of EFI configuration tables entries to be zero
  efi/x86/Add missing error handling to old_memmap 1:1 mapping code
2019-06-02 11:06:13 -07:00
Thomas Gleixner
9952f6918d treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms and conditions of the gnu general public license
  version 2 as published by the free software foundation this program
  is distributed in the hope it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not see http www gnu org
  licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 228 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:29:52 -07:00
Thomas Gleixner
f50a7f3d92 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191
Based on 1 normalized pattern(s):

  licensed under gplv2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 99 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170027.163048684@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:29:21 -07:00
Thomas Gleixner
1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:41 -07:00
Thomas Gleixner
c942fddf87 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
Based on 3 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [kishon] [vijay] [abraham]
  [i] [kishon]@[ti] [com] this program is distributed in the hope that
  it will be useful but without any warranty without even the implied
  warranty of merchantability or fitness for a particular purpose see
  the gnu general public license for more details

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version [author] [graeme] [gregory]
  [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
  [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
  [hk] [hemahk]@[ti] [com] this program is distributed in the hope
  that it will be useful but without any warranty without even the
  implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1105 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:37 -07:00
Thomas Gleixner
2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00
Rob Bradford
88447c5b93 efi: Allow the number of EFI configuration tables entries to be zero
Only try and access the EFI configuration tables if there there are any
reported. This allows EFI to be continued to used on systems where there
are no configuration table entries.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Gen Zhang <blackgod016574@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20190525112559.7917-3-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-25 13:48:17 +02:00
Thomas Gleixner
ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Thomas Gleixner
09c434b8a0 treewide: Add SPDX license identifier for more missed files
Add SPDX license identifiers to all files which:

 - Have no license information of any form

 - Have MODULE_LICENCE("GPL*") inside which was used in the initial
   scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:45 +02:00
Thomas Gleixner
457c899653 treewide: Add SPDX license identifier for missed files
Add SPDX license identifiers to all files which:

 - Have no license information of any form

 - Have EXPORT_.*_SYMBOL_GPL inside which was used in the
   initial scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:45 +02:00
Anson Huang
a0b14e6585 firmware: imx: SCU irq should ONLY be enabled after SCU IPC is ready
The imx_scu_irq_group_enable() is normally called during module driver
probe phase to enable SCU group irq, if SCU IPC is NOT ready, below
dump will show out:

[    0.933001] Hardware name: Freescale i.MX8QXP MEK (DT)
[    0.938129] pstate: 60000005 (nZCv daif -PAN -UAO)
[    0.942907] pc : imx_scu_call_rpc+0x114/0x158
[    0.947251] lr : imx_scu_irq_group_enable+0x74/0xc4
[    0.952113] sp : ffff00001005bae0
[    0.955415] x29: ffff00001005bae0 x28: ffff0000111bb0a0
[    0.960712] x27: ffff00001140b000 x26: ffff00001111068c
[    0.966011] x25: ffff0000111bb100 x24: 0000000000000000
[    0.971311] x23: ffff0000113d9cd8 x22: 0000000000000001
[    0.976610] x21: 0000000000000001 x20: ffff80083b51a410
[    0.981909] x19: ffff000011259000 x18: 0000000000000480
[    0.987209] x17: 000000000023ffb8 x16: 0000000000000010
[    0.992508] x15: 000000000000023f x14: ffffffffffffffff
[    0.997807] x13: 0000000000000018 x12: 0000000000000030
[    1.003107] x11: 0000000000000003 x10: 0101010101010101
[    1.008406] x9 : ffffffffffffffff x8 : 7f7f7f7f7f7f7f7f
[    1.013706] x7 : fefefeff646c606d x6 : 0000000000000000
[    1.019005] x5 : ffff0000112596c8 x4 : 0000000000000008
[    1.024304] x3 : 0000000000000003 x2 : 0000000000000001
[    1.029604] x1 : ffff00001005bb58 x0 : 0000000000000000
[    1.034905] Call trace:
[    1.037341]  imx_scu_call_rpc+0x114/0x158
[    1.041334]  imx_scu_irq_group_enable+0x74/0xc4
[    1.045856]  imx_sc_wdt_probe+0x24/0x150
[    1.049766]  platform_drv_probe+0x4c/0xb0
[    1.053762]  really_probe+0x1f8/0x2c8
[    1.057407]  driver_probe_device+0x58/0xfc
[    1.061490]  device_driver_attach+0x68/0x70
[    1.065660]  __driver_attach+0x94/0xdc
[    1.069397]  bus_for_each_dev+0x64/0xc0
[    1.073220]  driver_attach+0x20/0x28
[    1.076782]  bus_add_driver+0x148/0x1fc
[    1.080601]  driver_register+0x68/0x120
[    1.084424]  __platform_driver_register+0x4c/0x54
[    1.089120]  imx_sc_wdt_driver_init+0x18/0x20
[    1.093463]  do_one_initcall+0x58/0x1b8
[    1.097287]  kernel_init_freeable+0x1cc/0x288
[    1.101630]  kernel_init+0x10/0x100
[    1.105101]  ret_from_fork+0x10/0x18
[    1.108669] ---[ end trace 9e03302114457de9 ]---
[    1.113296] enable irq failed, group 1, mask 1, ret -22

To avoid such scenario, return -EPROBE_DEFER in imx_scu_irq_group_enable()
API if SCU IPC is NOT ready, then module driver which calls this API
in probe phase will defer probe after SCU IPC ready.

Fixes: 851826c756 ("firmware: imx: enable imx scu general irq function")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-05-20 09:12:20 +08:00
Linus Torvalds
d9351ea14d Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull IRQ chip updates from Ingo Molnar:
 "A late irqchips update:

   - New TI INTR/INTA set of drivers

   - Rewrite of the stm32mp1-exti driver as a platform driver

   - Update the IOMMU MSI mapping API to be RT friendly

   - A number of cleanups and other low impact fixes"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
  iommu/dma-iommu: Remove iommu_dma_map_msi_msg()
  irqchip/gic-v3-mbi: Don't map the MSI page in mbi_compose_m{b, s}i_msg()
  irqchip/ls-scfg-msi: Don't map the MSI page in ls_scfg_msi_compose_msg()
  irqchip/gic-v3-its: Don't map the MSI page in its_irq_compose_msi_msg()
  irqchip/gicv2m: Don't map the MSI page in gicv2m_compose_msi_msg()
  iommu/dma-iommu: Split iommu_dma_map_msi_msg() in two parts
  genirq/msi: Add a new field in msi_desc to store an IOMMU cookie
  arm64: arch_k3: Enable interrupt controller drivers
  irqchip/ti-sci-inta: Add msi domain support
  soc: ti: Add MSI domain bus support for Interrupt Aggregator
  irqchip/ti-sci-inta: Add support for Interrupt Aggregator driver
  dt-bindings: irqchip: Introduce TISCI Interrupt Aggregator bindings
  irqchip/ti-sci-intr: Add support for Interrupt Router driver
  dt-bindings: irqchip: Introduce TISCI Interrupt router bindings
  gpio: thunderx: Use the default parent apis for {request,release}_resources
  genirq: Introduce irq_chip_{request,release}_resource_parent() apis
  firmware: ti_sci: Add helper apis to manage resources
  firmware: ti_sci: Add RM mapping table for am654
  firmware: ti_sci: Add support for IRQ management
  firmware: ti_sci: Add support for RM core ops
  ...
2019-05-19 10:58:45 -07:00
Linus Torvalds
dc413a90ed ARM: SoC-related driver updates
Various driver updates for platforms and a couple of the small driver
 subsystems we merge through our tree:
 
 Among the larger pieces:
 
  - Power management improvements for TI am335x and am437x (RTC suspend/wake)
  - Misc new additions for Amlogic (socinfo updates)
  - ZynqMP FPGA manager
  - Nvidia improvements for reset/powergate handling
  - PMIC wrapper for Mediatek MT8516
  - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms and a couple of the small driver
  subsystems we merge through our tree:

  Among the larger pieces:

   - Power management improvements for TI am335x and am437x (RTC
     suspend/wake)

   - Misc new additions for Amlogic (socinfo updates)

   - ZynqMP FPGA manager

   - Nvidia improvements for reset/powergate handling

   - PMIC wrapper for Mediatek MT8516

   - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits)
  soc: aspeed: fix Kconfig
  soc: add aspeed folder and misc drivers
  spi: zynqmp: Fix build break
  soc: imx: Add generic i.MX8 SoC driver
  MAINTAINERS: Update email for Qualcomm SoC maintainer
  memory: tegra: Fix a typos for "fdcdwr2" mc client
  Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
  memory: tegra: Replace readl-writel with mc_readl-mc_writel
  memory: tegra: Fix integer overflow on tick value calculation
  memory: tegra: Fix missed registers values latching
  ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30
  optee: allow to work without static shared memory
  soc/tegra: pmc: Move powergate initialisation to probe
  soc/tegra: pmc: Remove reset sysfs entries on error
  soc/tegra: pmc: Fix reset sources and levels
  soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A
  soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask
  fpga manager: Adding FPGA Manager support for Xilinx zynqmp
  dt-bindings: fpga: Add bindings for ZynqMP fpga driver
  firmware: xilinx: Add fpga API's
  ...
2019-05-16 09:19:14 -07:00
Linus Torvalds
22c58fd70c ARM: SoC platform updates
SoC updates, mostly refactorings and cleanups of old legacy platforms.
 Major themes this release:
 
  - Conversion of ixp4xx to a modern platform (drivers, DT, bindings)
  - Moving some of the ep93xx headers around to get it closer to multiplatform enabled.
  - Cleanups of Davinci
 
 This tag also contains a few patches that were queued up as fixes before
 5.1 but I didn't get sent in before release.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC platform updates from Olof Johansson:
 "SoC updates, mostly refactorings and cleanups of old legacy platforms.

  Major themes this release:

   - Conversion of ixp4xx to a modern platform (drivers, DT, bindings)

   - Moving some of the ep93xx headers around to get it closer to
     multiplatform enabled.

   - Cleanups of Davinci

  This also contains a few patches that were queued up as fixes before
  5.1 but I didn't get sent in before release"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits)
  ARM: debug-ll: add default address for digicolor
  ARM: u300: regulator: add MODULE_LICENSE()
  ARM: ep93xx: move private headers out of mach/*
  ARM: ep93xx: move pinctrl interfaces into include/linux/soc
  ARM: ep93xx: keypad: stop using mach/platform.h
  ARM: ep93xx: move network platform data to separate header
  ARM: stm32: add AMBA support for stm32 family
  MAINTAINERS: update arch/arm/mach-davinci
  ARM: rockchip: add missing of_node_put in rockchip_smp_prepare_pmu
  ARM: dts: Add queue manager and NPE to the IXP4xx DTSI
  soc: ixp4xx: qmgr: Add DT probe code
  soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr
  soc: ixp4xx: npe: Add DT probe code
  soc: ixp4xx: Add DT bindings for IXP4xx NPE
  soc: ixp4xx: qmgr: Pass resources
  soc: ixp4xx: Remove unused functions
  soc: ixp4xx: Uninline several functions
  soc: ixp4xx: npe: Pass addresses as resources
  ARM: ixp4xx: Turn the QMGR into a platform device
  ARM: ixp4xx: Turn the NPE into a platform device
  ...
2019-05-16 08:31:32 -07:00
Linus Torvalds
f678d6da74 Char/Misc patches for 5.2-rc1 - part 2
Here is the "real" big set of char/misc driver patches for 5.2-rc1
 
 Loads of different driver subsystem stuff in here, all over the places:
   - thunderbolt driver updates
   - habanalabs driver updates
   - nvmem driver updates
   - extcon driver updates
   - intel_th driver updates
   - mei driver updates
   - coresight driver updates
   - soundwire driver cleanups and updates
   - fastrpc driver updates
   - other minor driver updates
   - chardev minor fixups
 
 Feels like this tree is getting to be a dumping ground of "small driver
 subsystems" these days.  Which is fine with me, if it makes things
 easier for those subsystem maintainers.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.2-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

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

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

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

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

* tag 'char-misc-5.2-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
  intel_th: msu: Add current window tracking
  intel_th: msu: Add a sysfs attribute to trigger window switch
  intel_th: msu: Correct the block wrap detection
  intel_th: Add switch triggering support
  intel_th: gth: Factor out trace start/stop
  intel_th: msu: Factor out pipeline draining
  intel_th: msu: Switch over to scatterlist
  intel_th: msu: Replace open-coded list_{first,last,next}_entry variants
  intel_th: Only report useful IRQs to subdevices
  intel_th: msu: Start handling IRQs
  intel_th: pci: Use MSI interrupt signalling
  intel_th: Communicate IRQ via resource
  intel_th: Add "rtit" source device
  intel_th: Skip subdevices if their MMIO is missing
  intel_th: Rework resource passing between glue layers and core
  intel_th: SPDX-ify the documentation
  intel_th: msu: Fix single mode with IOMMU
  coresight: funnel: Support static funnel
  dt-bindings: arm: coresight: Unify funnel DT binding
  coresight: replicator: Add new device id for static replicator
  ...
2019-05-07 13:39:22 -07:00
Linus Torvalds
8f5e823f91 Power management updates for 5.2-rc1
- Fix the handling of Performance and Energy Bias Hint (EPB) on
    Intel processors and expose it to user space via sysfs to avoid
    having to access it through the generic MSR I/F (Rafael Wysocki).
 
  - Improve the handling of global turbo changes made by the platform
    firmware in the intel_pstate driver (Rafael Wysocki).
 
  - Convert some slow-path static_cpu_has() callers to boot_cpu_has()
    in cpufreq (Borislav Petkov).
 
  - Fix the frequency calculation loop in the armada-37xx cpufreq
    driver (Gregory CLEMENT).
 
  - Fix possible object reference leaks in multuple cpufreq drivers
    (Wen Yang).
 
  - Fix kerneldoc comment in the centrino cpufreq driver (dongjian).
 
  - Clean up the ACPI and maple cpufreq drivers (Viresh Kumar, Mohan
    Kumar).
 
  - Add support for lx2160a and ls1028a to the qoriq cpufreq driver
    (Vabhav Sharma, Yuantian Tang).
 
  - Fix kobject memory leak in the cpufreq core (Viresh Kumar).
 
  - Simplify the IOwait boosting in the schedutil cpufreq governor
    and rework the TSC cpufreq notifier on x86 (Rafael Wysocki).
 
  - Clean up the cpufreq core and statistics code (Yue Hu, Kyle Lin).
 
  - Improve the cpufreq documentation, add SPDX license tags to
    some PM documentation files and unify copyright notices in
    them (Rafael Wysocki).
 
  - Add support for "CPU" domains to the generic power domains (genpd)
    framework and provide low-level PSCI firmware support for that
    feature (Ulf Hansson).
 
  - Rearrange the PSCI firmware support code and add support for
    SYSTEM_RESET2 to it (Ulf Hansson, Sudeep Holla).
 
  - Improve genpd support for devices in multiple power domains (Ulf
    Hansson).
 
  - Unify target residency for the AFTR and coupled AFTR states in the
    exynos cpuidle driver (Marek Szyprowski).
 
  - Introduce new helper routine in the operating performance points
    (OPP) framework (Andrew-sh.Cheng).
 
  - Add support for passing on-die termination (ODT) and auto power
    down parameters from the kernel to Trusted Firmware-A (TF-A) to
    the rk3399_dmc devfreq driver (Enric Balletbo i Serra).
 
  - Add tracing to devfreq (Lukasz Luba).
 
  - Make the exynos-bus devfreq driver suspend all devices on system
    shutdown (Marek Szyprowski).
 
  - Fix a few minor issues in the devfreq subsystem and clean it up
    somewhat (Enric Balletbo i Serra, MyungJoo Ham, Rob Herring,
    Saravana Kannan, Yangtao Li).
 
  - Improve system wakeup diagnostics (Stephen Boyd).
 
  - Rework filesystem sync messages emitted during system suspend and
    hibernation (Harry Pan).
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Merge tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

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

  Specifics:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   - Add tracing to devfreq (Lukasz Luba).

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

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

   - Improve system wakeup diagnostics (Stephen Boyd).

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

* tag 'pm-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (72 commits)
  cpufreq: Fix kobject memleak
  cpufreq: armada-37xx: fix frequency calculation for opp
  cpufreq: centrino: Fix centrino_setpolicy() kerneldoc comment
  cpufreq: qoriq: add support for lx2160a
  x86: tsc: Rework time_cpufreq_notifier()
  PM / Domains: Allow to attach a CPU via genpd_dev_pm_attach_by_id|name()
  PM / Domains: Search for the CPU device outside the genpd lock
  PM / Domains: Drop unused in-parameter to some genpd functions
  PM / Domains: Use the base device for driver_deferred_probe_check_state()
  cpufreq: qoriq: Add ls1028a chip support
  PM / Domains: Enable genpd_dev_pm_attach_by_id|name() for single PM domain
  PM / Domains: Allow OF lookup for multi PM domain case from ->attach_dev()
  PM / Domains: Don't kfree() the virtual device in the error path
  cpufreq: Move ->get callback check outside of __cpufreq_get()
  PM / Domains: remove unnecessary unlikely()
  cpufreq: Remove needless bios_limit check in show_bios_limit()
  drivers/cpufreq/acpi-cpufreq.c: This fixes the following checkpatch warning
  firmware/psci: add support for SYSTEM_RESET2
  PM / devfreq: add tracing for scheduling work
  trace: events: add devfreq trace event file
  ...
2019-05-06 19:40:31 -07:00
Linus Torvalds
59df1c2bde ACPI updates for 5.2-rc1
- Convert the ACPI documentation in the kernel source tree to the
    .rst format and split it into the admin guide, driver API and
    firmware guide parts (Changbin Du).
 
  - Add a PRP0001 usage example to the ACPI documentation (Thomas
    Preston).
 
  - Switch over the users of the acpi_dev_get_first_match_name()
    library function which turned out to be problematic to a new,
    better one called acpi_dev_get_first_match_dev() (Andy Shevchenko,
    YueHaibing).
 
  - Update the ACPICA code in the kernel to upstream release 20190405
    including:
    * Null pointer dereference check in acpi_ns_delete_node() (Erik
      Schmauss).
    * Multiple macro and function name changes (Bob Moore).
    * Predefined operation region name fix (Erik Schmauss).
 
  - Fix hibernation issue on systems using the Baytrail and
    Cherrytrail Intel SoCs introduced during the 4.20 development
    cycle (Hans de Goede).
 
  - Add Sony VPCEH3U1E to the backlight quirk list (Zhang Rui).
 
  - Fix button handling during system resume (Zhang Rui).
 
  - Add a device PM diagnostic message (Rafael Wysocki).
 
  - Clean up the code, comments and white space in multiple places
    (Bjorn Helgaas, Gustavo Silva, Kefeng Wang).
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Merge tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These rearrange the ACPI documentation by converting it to the .rst
  format and splitting it into clear categories (admin guide, driver
  API, firmware guide), switch over multiple users of a problematic
  library function to a new better one, update the ACPICA code in the
  kernel to a new upstream release, fix a few issues, improve power
  device management diagnostics and do some cleanups.

  Specifics:

   - Convert the ACPI documentation in the kernel source tree to the
     .rst format and split it into the admin guide, driver API and
     firmware guide parts (Changbin Du).

   - Add a PRP0001 usage example to the ACPI documentation (Thomas
     Preston).

   - Switch over the users of the acpi_dev_get_first_match_name()
     library function which turned out to be problematic to a new,
     better one called acpi_dev_get_first_match_dev() (Andy Shevchenko,
     YueHaibing).

   - Update the ACPICA code in the kernel to upstream release 20190405
     including:
       * Null pointer dereference check in acpi_ns_delete_node() (Erik
         Schmauss).
       * Multiple macro and function name changes (Bob Moore).
       * Predefined operation region name fix (Erik Schmauss).

   - Fix hibernation issue on systems using the Baytrail and Cherrytrail
     Intel SoCs introduced during the 4.20 development cycle (Hans de
     Goede).

   - Add Sony VPCEH3U1E to the backlight quirk list (Zhang Rui).

   - Fix button handling during system resume (Zhang Rui).

   - Add a device PM diagnostic message (Rafael Wysocki).

   - Clean up the code, comments and white space in multiple places
     (Bjorn Helgaas, Gustavo Silva, Kefeng Wang)"

* tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
  Documentation: ACPI: move video_extension.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move ssdt-overlays.txt to admin-guide/acpi and convert to reST
  Documentation: ACPI: move lpit.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move cppc_sysfs.txt to admin-guide/acpi and convert to reST
  Documentation: ACPI: move apei/einj.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move apei/output_format.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move aml-debugger.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move method-tracing.txt to firmware-guide/acpi and convert to rsST
  Documentation: ACPI: move debug.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move dsd/data-node-references.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move dsd/graph.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move acpi-lid.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move i2c-muxes.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move dsdt-override.txt to admin-guide/acpi and convert to reST
  Documentation: ACPI: move initrd_table_override.txt to admin-guide/acpi and convert to reST
  Documentation: ACPI: move method-customizing.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move gpio-properties.txt to firmware-guide/acpi and convert to reST
  Documentation: ACPI: move DSD-properties-rules.txt to firmware-guide/acpi and covert to reST
  Documentation: ACPI: move scan_handlers.txt to driver-api/acpi and convert to reST
  Documentation: ACPI: move linuxized-acpica.txt to driver-api/acpi and convert to reST
  ...
2019-05-06 19:35:13 -07:00
Linus Torvalds
c620f7bd0b arm64 updates for 5.2
Mostly just incremental improvements here:
 
 - Introduce AT_HWCAP2 for advertising CPU features to userspace
 
 - Expose SVE2 availability to userspace
 
 - Support for "data cache clean to point of deep persistence" (DC PODP)
 
 - Honour "mitigations=off" on the cmdline and advertise status via sysfs
 
 - CPU timer erratum workaround (Neoverse-N1 #1188873)
 
 - Introduce perf PMU driver for the SMMUv3 performance counters
 
 - Add config option to disable the kuser helpers page for AArch32 tasks
 
 - Futex modifications to ensure liveness under contention
 
 - Rework debug exception handling to seperate kernel and user handlers
 
 - Non-critical fixes and cleanup
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "Mostly just incremental improvements here:

   - Introduce AT_HWCAP2 for advertising CPU features to userspace

   - Expose SVE2 availability to userspace

   - Support for "data cache clean to point of deep persistence" (DC PODP)

   - Honour "mitigations=off" on the cmdline and advertise status via
     sysfs

   - CPU timer erratum workaround (Neoverse-N1 #1188873)

   - Introduce perf PMU driver for the SMMUv3 performance counters

   - Add config option to disable the kuser helpers page for AArch32 tasks

   - Futex modifications to ensure liveness under contention

   - Rework debug exception handling to seperate kernel and user
     handlers

   - Non-critical fixes and cleanup"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits)
  Documentation: Add ARM64 to kernel-parameters.rst
  arm64/speculation: Support 'mitigations=' cmdline option
  arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB
  arm64: enable generic CPU vulnerabilites support
  arm64: add sysfs vulnerability show for speculative store bypass
  arm64: Fix size of __early_cpu_boot_status
  clocksource/arm_arch_timer: Use arch_timer_read_counter to access stable counters
  clocksource/arm_arch_timer: Remove use of workaround static key
  clocksource/arm_arch_timer: Drop use of static key in arch_timer_reg_read_stable
  clocksource/arm_arch_timer: Direcly assign set_next_event workaround
  arm64: Use arch_timer_read_counter instead of arch_counter_get_cntvct
  watchdog/sbsa: Use arch_timer_read_counter instead of arch_counter_get_cntvct
  ARM: vdso: Remove dependency with the arch_timer driver internals
  arm64: Apply ARM64_ERRATUM_1188873 to Neoverse-N1
  arm64: Add part number for Neoverse N1
  arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT
  arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32
  arm64: mm: Remove pte_unmap_nested()
  arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable
  arm64: compat: Reduce address limit for 64K pages
  ...
2019-05-06 17:54:22 -07:00
Lokesh Vutla
032a1ec549 firmware: ti_sci: Add helper apis to manage resources
Each resource with in the device can be uniquely identified as defined
by TISCI. Since this is generic across the devices, resource allocation
also can be made generic instead of each client driver handling the
resource. So add helper apis to manage the resource.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-01 10:41:33 +01:00
Peter Ujfalusi
754c9477ae firmware: ti_sci: Add RM mapping table for am654
Add the resource mapping table for AM654 SoC as defined in
http://downloads.ti.com/tisci/esd/latest/5_soc_doc/am6x/resasg_types.html
Introduce a new compatible for AM654 "ti,am654-sci" for using
this resource map table.

Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-01 10:41:08 +01:00
Lokesh Vutla
997b001f6b firmware: ti_sci: Add support for IRQ management
TISCI abstracts the handling of IRQ routes where interrupt sources
are not directly connected to host interrupt controller. Add support
for the set of TISCI commands for requesting and releasing IRQs.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-01 10:41:02 +01:00
Lokesh Vutla
9c19fb6895 firmware: ti_sci: Add support for RM core ops
TISCI provides support for getting the resources(IRQ, RING etc..)
assigned to a specific device. These resources can be handled by
the client and in turn sends TISCI cmd to configure the resources.

It is very important that client should keep track on usage of these
resources.

Add support for TISCI commands to get resource ranges.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-01 10:40:24 +01:00
Grygorii Strashko
905c30477f firmware: ti_sci: Add support to get TISCI handle using of_phandle
TISCI has been updated to have support for Resource management(like
interrupts etc..). And there can be multiple device instances of a
resource type in a SoC. So every driver corresponding to a resource type
should get a TISCI handle so that it can make TISCI calls. And each
DT node corresponding to a device should exist under its corresponding
bus node as per the SoC architecture.

But existing apis in TISCI library assumes that all TISCI users are
child nodes of TISCI. Which is not true in the above case. So introduce
(devm_)ti_sci_get_by_phandle() apis that can be used by TISCI users
to get TISCI handle using of phandle property.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-01 10:40:08 +01:00
Olof Johansson
f99552d9eb i.MX drivers change for 5.2:
- A series from Aisheng to generalize the SCU powerdomain driver
    for easier adding new SCU based platforms like imx8qm.
  - Add a generic i.MX8 SoC driver for reporting SoC and platform
    information.
  - Replace explicit polling loop with a call to regmap_read_poll_timeout()
    for gpcv2 driver to avoid code repetition.
  - Use devm_platform_ioremap_resource() to simplify gpc/gpcv2 driver
    code a bit.
  - Add general IRQ support for imx-scu driver, so that interrupt of
    device like RTC, thermal and watchdog can be handled.
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Merge tag 'imx-drivers-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers

i.MX drivers change for 5.2:
 - A series from Aisheng to generalize the SCU powerdomain driver
   for easier adding new SCU based platforms like imx8qm.
 - Add a generic i.MX8 SoC driver for reporting SoC and platform
   information.
 - Replace explicit polling loop with a call to regmap_read_poll_timeout()
   for gpcv2 driver to avoid code repetition.
 - Use devm_platform_ioremap_resource() to simplify gpc/gpcv2 driver
   code a bit.
 - Add general IRQ support for imx-scu driver, so that interrupt of
   device like RTC, thermal and watchdog can be handled.

* tag 'imx-drivers-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: Add generic i.MX8 SoC driver
  firmware: imx: enable imx scu general irq function
  soc: imx: gpcv2: use devm_platform_ioremap_resource() to simplify code
  soc: imx: gpc: use devm_platform_ioremap_resource() to simplify code
  firmware: imx: scu-pd: decouple the SS information from domain names
  firmware: imx: scu-pd: add specifying the base of domain name index support
  firmware: imx: scu-pd: use bool to set postfix
  soc: imx: gpcv2: Make use of regmap_read_poll_timeout()

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-29 09:25:21 -07:00
Xiongfeng Wang
2f1d4e24d9 firmware: arm_sdei: Prohibit probing in '_sdei_handler'
Functions called in '_sdei_handler' are needed to be marked as
'nokprobe'. Because these functions are called in NMI context and
neither the arch-code's debug infrastructure nor kprobes core supports
this.

Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-04-29 16:50:48 +01:00
Olof Johansson
7f26bb130a ARM SCMI fixes/cleanup for v5.2
1. Fix for of_node reference leak in scmi_mailbox_check by passing
    NULL argument to of_parse_phandle_with_args instead of dummy argument
 
 2. Cleanup of_match_device->data NULL pointer handling using
    of_device_get_match_data() helper
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Merge tag 'scmi-fixes-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers

ARM SCMI fixes/cleanup for v5.2

1. Fix for of_node reference leak in scmi_mailbox_check by passing
   NULL argument to of_parse_phandle_with_args instead of dummy argument

2. Cleanup of_match_device->data NULL pointer handling using
   of_device_get_match_data() helper

* tag 'scmi-fixes-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_scmi: replace of_match_device->data with of_device_get_match_data()
  firmware: arm_scmi: fix of_node leak in scmi_mailbox_check

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-28 23:11:24 -07:00
Thierry Reding
4cb5d9eca1 firmware: Move Trusted Foundations support
Move the Trusted Foundations support out of arch/arm/firmware and into
drivers/firmware where most other firmware support implementations are
located.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-04-17 16:43:03 +02:00
Sudeep Holla
4302e381a8 firmware/psci: add support for SYSTEM_RESET2
PSCI v1.1 introduced SYSTEM_RESET2 to allow both architectural resets
where the semantics are described by the PSCI specification itself as
well as vendor-specific resets. Currently only system warm reset
semantics is defined as part of architectural resets by the specification.

This patch implements support for SYSTEM_RESET2 by making using of
reboot_mode passed by the reboot infrastructure in the kernel.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-16 23:05:21 +02:00