Merge remote-tracking branch 'origin/master' into drm-misc-next-fixes

Backmerge 4.12-rc6 into -next-fixes. -next-fixes will contain find patches
for 4.13 merge window

Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-devfreq'

* pm-cpufreq:
cpufreq: conservative: Allow down_threshold to take values from 1 to 10
Revert "cpufreq: schedutil: Reduce frequencies sl

Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-devfreq'

* pm-cpufreq:
cpufreq: conservative: Allow down_threshold to take values from 1 to 10
Revert "cpufreq: schedutil: Reduce frequencies slower"

* pm-cpuidle:
cpuidle: dt: Add missing 'of_node_put()'

* pm-devfreq:
PM / devfreq: exynos-ppmu: Staticize event list
PM / devfreq: exynos-ppmu: Handle return value of clk_prepare_enable
PM / devfreq: exynos-nocp: Handle return value of clk_prepare_enable

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Merge tag 'v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next

Linux 4.12-rc5

Merge tag 'v4.12-rc3' into for-linus

Merge with mainline to get acpi_dev_present() needed by patches to
axp20x-pek driver.

Merge tag 'v4.12-rc3' into next

Sync with mainline to bring in changes in platform drovers dropping
calls to sparse_keymap_free() so that we can remove it for good.

Sync to mainline for security submaintainers to work against

Merge tag 'v4.12-rc1' into docs-next

Linux 4.12-rc1

Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next

Picking up drm-next @ 4.12-rc1 in order to apply Michal Hocko's vmalloc patch set

Signed-off-by: Sean Paul <seanpaul@chromium.org>

Merge 'v4.12-rc1' into MTD

Bring a few queued patches in sync for -next development.

Merge tag 'v4.12-rc1' into patchwork

Linux 4.12-rc1

* tag 'v4.12-rc1': (13212 commits)
Linux 4.12-rc1
mm, docs: update memory.stat description with workingset* entries
mm: vmscan: scan until

Merge tag 'v4.12-rc1' into patchwork

Linux 4.12-rc1

* tag 'v4.12-rc1': (13212 commits)
Linux 4.12-rc1
mm, docs: update memory.stat description with workingset* entries
mm: vmscan: scan until it finds eligible pages
mm, thp: copying user pages must schedule on collapse
dax: fix PMD data corruption when fault races with write
dax: fix data corruption when fault races with write
ext4: return to starting transaction in ext4_dax_huge_fault()
mm: fix data corruption due to stale mmap reads
dax: prevent invalidation of mapped DAX entries
Tigran has moved
mm, vmalloc: fix vmalloc users tracking properly
mm/khugepaged: add missed tracepoint for collapse_huge_page_swapin
gcov: support GCC 7.1
mm, vmstat: Remove spurious WARN() during zoneinfo print
time: delete current_fs_time()
hwpoison, memcg: forcibly uncharge LRU pages
sound: Disable the build of OSS drivers
drm/i915: Make vblank evade warnings optional
Input: cros_ec_keyb - remove extraneous 'const'
drm/nouveau/therm: remove ineffective workarounds for alarm bugs
...

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Merge branch 'tee/initial-merge' into fixes

This is a dependency for the following fix

* tee/initial-merge:
arm64: dt: hikey: Add optee node
Documentation: tee subsystem and op-tee driver
tee

Merge branch 'tee/initial-merge' into fixes

This is a dependency for the following fix

* tee/initial-merge:
arm64: dt: hikey: Add optee node
Documentation: tee subsystem and op-tee driver
tee: add OP-TEE driver
tee: generic TEE subsystem
dt/bindings: add bindings for optee

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

Pull TEE driver infrastructure and OP-TEE drivers from Arnd Bergmann:
"This introduces a generic TEE framework in

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

Pull TEE driver infrastructure and OP-TEE drivers from Arnd Bergmann:
"This introduces a generic TEE framework in the kernel, to handle
trusted environemtns (security coprocessor or software implementations
such as OP-TEE/TrustZone). I'm sending it separately from the other
arm-soc driver changes to give it a little more visibility, once the
subsystem is merged, we will likely keep this in the arm₋soc drivers
branch or have the maintainers submit pull requests directly,
depending on the patch volume.

I have reviewed earlier versions in the past, and have reviewed the
latest version in person during Linaro Connect BUD17.

Here is my overall assessment of the subsystem:

- There is clearly demand for this, both for the generic
infrastructure and the specific OP-TEE implementation.

- The code has gone through a large number of reviews, and the review
comments have all been addressed, but the reviews were not coming
up with serious issues any more and nobody volunteered to vouch for
the quality.

- The user space ioctl interface is sufficient to work with the
OP-TEE driver, and it should in principle work with other TEE
implementations that follow the GlobalPlatform[1] standards, but it
might need to be extended in minor ways depending on specific
requirements of future TEE implementations

- The main downside of the API to me is how the user space is tied to
the TEE implementation in hardware or firmware, but uses a generic
way to communicate with it. This seems to be an inherent problem
with what it is trying to do, and I could not come up with any
better solution than what is implemented here.

For a detailed history of the patch series, see

https://lkml.org/lkml/2017/3/10/1277"

* tag 'armsoc-tee' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: dt: hikey: Add optee node
Documentation: tee subsystem and op-tee driver
tee: add OP-TEE driver
tee: generic TEE subsystem
dt/bindings: add bindings for optee

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Merge tag 'tee-drv-for-4.12' of git://git.linaro.org:/people/jens.wiklander/linux-tee into next/tee

Pull "generic TEE subsystem for v4.12"

Introduce generic TEE subsystem:
- the TEE subsystem itsel

Merge tag 'tee-drv-for-4.12' of git://git.linaro.org:/people/jens.wiklander/linux-tee into next/tee

Pull "generic TEE subsystem for v4.12"

Introduce generic TEE subsystem:
- the TEE subsystem itself
- an OP-TEE driver using the subsystem
- optee bindings
- optee node for hi6220-hikey.dts

* tag 'tee-drv-for-4.12' of git://git.linaro.org:/people/jens.wiklander/linux-tee:
arm64: dt: hikey: Add optee node
Documentation: tee subsystem and op-tee driver
tee: add OP-TEE driver
tee: generic TEE subsystem
dt/bindings: add bindings for optee

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tee: add OP-TEE driver

Adds a OP-TEE driver which also can be compiled as a loadable module.

* Targets ARM and ARM64
* Supports using reserved memory from OP-TEE as shared memory
* Probes OP-TEE ve

tee: add OP-TEE driver

Adds a OP-TEE driver which also can be compiled as a loadable module.

* Targets ARM and ARM64
* Supports using reserved memory from OP-TEE as shared memory
* Probes OP-TEE version using SMCs
* Accepts requests on privileged and unprivileged device
* Uses OPTEE message protocol version 2 to communicate with secure world

Acked-by: Andreas Dannenberg <dannenberg@ti.com>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey)
Tested-by: Volodymyr Babchuk <vlad.babchuk@gmail.com> (RCAR H3)
Tested-by: Scott Branden <scott.branden@broadcom.com>
Reviewed-by: Javier González <javier@javigon.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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