Merge branch 'topic/ppc-kvm' into next

Merge in some commits we're sharing with the KVM tree.

I manually propagated the change from commit d3d4ffaae439
("powerpc/powernv/ioda2: Reduce upper limit f

Merge branch 'topic/ppc-kvm' into next

Merge in some commits we're sharing with the KVM tree.

I manually propagated the change from commit d3d4ffaae439
("powerpc/powernv/ioda2: Reduce upper limit for DMA window size") into
pci-ioda-tce.c.

Conflicts:
arch/powerpc/include/asm/cputable.h
arch/powerpc/platforms/powernv/pci-ioda.c
arch/powerpc/platforms/powernv/pci.h

show more ...

powerpc/64s: Remove POWER9 DD1 support

POWER9 DD1 was never a product. It is no longer supported by upstream
firmware, and it is not effectively supported in Linux due to lack of
testing.

Signed-of

powerpc/64s: Remove POWER9 DD1 support

POWER9 DD1 was never a product. It is no longer supported by upstream
firmware, and it is not effectively supported in Linux due to lack of
testing.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au>
[mpe: Remove arch_make_huge_pte() entirely]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

show more ...

powerpc: Remove Power8 DD1 from cputable

This was added to support an early version of Power8 that did not have
working doorbells. These machines were not publicly available, and all of
the internal

powerpc: Remove Power8 DD1 from cputable

This was added to support an early version of Power8 that did not have
working doorbells. These machines were not publicly available, and all of
the internal users have long since upgraded.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

show more ...

Merge tag 'v4.18-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next

Linux 4.18-rc2

Merge tag 'v4.18-rc2' into next-general

Merge to Linux 4.18-rc2 for security subsystem developers.

Merge branch 'linus' into x86/urgent

Required to queue a dependent fix.

Merge branch 'for-4.18/alps' into for-linus

hid-alps driver cleanups wrt. t4_read_write_register() handling
from Christophe Jaillet

Merge tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
"Notable changes:

- Support for split PMD page table lock o

Merge tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
"Notable changes:

- Support for split PMD page table lock on 64-bit Book3S (Power8/9).

- Add support for HAVE_RELIABLE_STACKTRACE, so we properly support
live patching again.

- Add support for patching barrier_nospec in copy_from_user() and
syscall entry.

- A couple of fixes for our data breakpoints on Book3S.

- A series from Nick optimising TLB/mm handling with the Radix MMU.

- Numerous small cleanups to squash sparse/gcc warnings from Mathieu
Malaterre.

- Several series optimising various parts of the 32-bit code from
Christophe Leroy.

- Removal of support for two old machines, "SBC834xE" and "C2K"
("GEFanuc,C2K"), which is why the diffstat has so many deletions.

And many other small improvements & fixes.

There's a few out-of-area changes. Some minor ftrace changes OK'ed by
Steve, and a fix to our powernv cpuidle driver. Then there's a series
touching mm, x86 and fs/proc/task_mmu.c, which cleans up some details
around pkey support. It was ack'ed/reviewed by Ingo & Dave and has
been in next for several weeks.

Thanks to: Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Al
Viro, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Arnd
Bergmann, Balbir Singh, Cédric Le Goater, Christophe Leroy, Christophe
Lombard, Colin Ian King, Dave Hansen, Fabio Estevam, Finn Thain,
Frederic Barrat, Gautham R. Shenoy, Haren Myneni, Hari Bathini, Ingo
Molnar, Jonathan Neuschäfer, Josh Poimboeuf, Kamalesh Babulal,
Madhavan Srinivasan, Mahesh Salgaonkar, Mark Greer, Mathieu Malaterre,
Matthew Wilcox, Michael Neuling, Michal Suchanek, Naveen N. Rao,
Nicholas Piggin, Nicolai Stange, Olof Johansson, Paul Gortmaker, Paul
Mackerras, Peter Rosin, Pridhiviraj Paidipeddi, Ram Pai, Rashmica
Gupta, Ravi Bangoria, Russell Currey, Sam Bobroff, Samuel
Mendoza-Jonas, Segher Boessenkool, Shilpasri G Bhat, Simon Guo,
Souptick Joarder, Stewart Smith, Thiago Jung Bauermann, Torsten Duwe,
Vaibhav Jain, Wei Yongjun, Wolfram Sang, Yisheng Xie, YueHaibing"

* tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (251 commits)
powerpc/64s/radix: Fix missing ptesync in flush_cache_vmap
cpuidle: powernv: Fix promotion from snooze if next state disabled
powerpc: fix build failure by disabling attribute-alias warning in pci_32
ocxl: Fix missing unlock on error in afu_ioctl_enable_p9_wait()
powerpc-opal: fix spelling mistake "Uniterrupted" -> "Uninterrupted"
powerpc: fix spelling mistake: "Usupported" -> "Unsupported"
powerpc/pkeys: Detach execute_only key on !PROT_EXEC
powerpc/powernv: copy/paste - Mask SO bit in CR
powerpc: Remove core support for Marvell mv64x60 hostbridges
powerpc/boot: Remove core support for Marvell mv64x60 hostbridges
powerpc/boot: Remove support for Marvell mv64x60 i2c controller
powerpc/boot: Remove support for Marvell MPSC serial controller
powerpc/embedded6xx: Remove C2K board support
powerpc/lib: optimise PPC32 memcmp
powerpc/lib: optimise 32 bits __clear_user()
powerpc/time: inline arch_vtime_task_switch()
powerpc/Makefile: set -mcpu=860 flag for the 8xx
powerpc: Implement csum_ipv6_magic in assembly
powerpc/32: Optimise __csum_partial()
powerpc/lib: Adjust .balign inside string functions for PPC32
...

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 4.18 merge window.

Merge branches 'clk-warn', 'clk-core', 'clk-spear' and 'clk-qcom-msm8998' into clk-next

* clk-warn:
clk: Print the clock name and warning cause

* clk-core:
clk: Remove clk_init_cb typedef

* cl

Merge branches 'clk-warn', 'clk-core', 'clk-spear' and 'clk-qcom-msm8998' into clk-next

* clk-warn:
clk: Print the clock name and warning cause

* clk-core:
clk: Remove clk_init_cb typedef

* clk-spear:
clk: spear: fix WDT clock definition on SPEAr600

* clk-qcom-msm8998:
clk: qcom: Add MSM8998 Global Clock Control (GCC) driver

show more ...

powerpc: Add TIDR CPU feature for POWER9

This patch adds a CPU feature bit to show whether the CPU has
the TIDR register available, enabling as_notify/wait in userspace.

Signed-off-by: Alastair D'S

powerpc: Add TIDR CPU feature for POWER9

This patch adds a CPU feature bit to show whether the CPU has
the TIDR register available, enabling as_notify/wait in userspace.

Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

show more ...

Merge tag 'v4.17-rc6' into next

Sync up with mainline to bring in Atmel controller changes for Caroline.

Merge remote-tracking branch 'net-next/master' into mac80211-next

Bring in net-next which had pulled in net, so I have the changes
from mac80211 and can apply a patch that would otherwise conflict.

Merge remote-tracking branch 'net-next/master' into mac80211-next

Bring in net-next which had pulled in net, so I have the changes
from mac80211 and can apply a patch that would otherwise conflict.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

show more ...

Merge branch 'drm-intel-next-queued' into gvt-next

Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>

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

drm-misc-next is still based on v4.16-rc7, and was getting a bit stale.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.inte

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

drm-misc-next is still based on v4.16-rc7, and was getting a bit stale.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

show more ...

Merge drm/drm-next into drm-intel-next-queued

Need d224985a5e31 ("sched/wait, drivers/drm: Convert wait_on_atomic_t()
usage to the new wait_var_event() API") in dinq to be able to fix
https://bugs.f

Merge drm/drm-next into drm-intel-next-queued

Need d224985a5e31 ("sched/wait, drivers/drm: Convert wait_on_atomic_t()
usage to the new wait_var_event() API") in dinq to be able to fix
https://bugs.freedesktop.org/show_bug.cgi?id=106085.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

show more ...

Merge tag 'v4.17-rc3' into apparmor-next

Linux v4.17-rc3

Merge in v4.17 for LSM updates

Signed-off-by: John Johansen <john.johansen@canonical.com>

Merge tag 'v4.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next

Linux 4.17-rc2

Merge tag 'v4.17-rc2' into next-general

Sync to Linux 4.17-rc2 for developers.

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Conflicts were simple overlapping changes in microchip
driver.

Signed-off-by: David S. Miller <davem@davemloft.net>

Back merge 'drm-intel-fixes' into gvt-fixes

Need for 4.17-rc1

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

Merge tag 'powerpc-4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

- Fix crashes when loading modules built with a different
CON

Merge tag 'powerpc-4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

- Fix crashes when loading modules built with a different
CONFIG_RELOCATABLE value by adding CONFIG_RELOCATABLE to vermagic.

- Fix busy loops in the OPAL NVRAM driver if we get certain error
conditions from firmware.

- Remove tlbie trace points from KVM code that's called in real mode,
because it causes crashes.

- Fix checkstops caused by invalid tlbiel on Power9 Radix.

- Ensure the set of CPU features we "know" are always enabled is
actually the minimal set when we build with support for firmware
supplied CPU features.

Thanks to: Aneesh Kumar K.V, Anshuman Khandual, Nicholas Piggin.

* tag 'powerpc-4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: Fix CPU_FTRS_ALWAYS vs DT CPU features
powerpc/mm/radix: Fix checkstops caused by invalid tlbiel
KVM: PPC: Book3S HV: trace_tlbie must not be called in realmode
powerpc/8xx: Fix build with hugetlbfs enabled
powerpc/powernv: Fix OPAL NVRAM driver OPAL_BUSY loops
powerpc/powernv: define a standard delay for OPAL_BUSY type retry loops
powerpc/fscr: Enable interrupts earlier before calling get_user()
powerpc/64s: Fix section mismatch warnings from setup_rfi_flush()
powerpc/modules: Fix crashes by adding CONFIG_RELOCATABLE to vermagic

show more ...

powerpc/64s: Fix CPU_FTRS_ALWAYS vs DT CPU features

The cpu_has_feature() mechanism has an optimisation where at build
time we construct a mask of the CPU feature bits that will always be
true for t

powerpc/64s: Fix CPU_FTRS_ALWAYS vs DT CPU features

The cpu_has_feature() mechanism has an optimisation where at build
time we construct a mask of the CPU feature bits that will always be
true for the given .config, based on the platform/bitness/etc. that we
are building for.

That is incompatible with DT CPU features, where the set of CPU
features is dependent on feature flags that are given to us by
firmware.

The result is that some feature bits can not be *disabled* by DT CPU
features. Or more accurately, they can be disabled but they will still
appear in the ALWAYS mask, meaning cpu_has_feature() will always
return true for them.

In the past this hasn't really been a problem because on Book3S
64 (where we support DT CPU features), the set of ALWAYS bits has been
very small. That was because we always built for POWER4 and later,
meaning the set of common bits was small.

The only bit that could be cleared by DT CPU features that was also in
the ALWAYS mask was CPU_FTR_NODSISRALIGN, and that was only used in
the alignment handler to create a fake DSISR. That code was itself
deleted in 31bfdb036f12 ("powerpc: Use instruction emulation
infrastructure to handle alignment faults") (Sep 2017).

However the set of ALWAYS features changed with the recent commit
db5ae1c155af ("powerpc/64s: Refine feature sets for little endian
builds") which restricted the set of feature flags when building
little endian to Power7 or later. That caused the ALWAYS mask to
become much larger for little endian builds.

The result is that the following feature bits can currently not
be *disabled* by DT CPU features:

CPU_FTR_REAL_LE, CPU_FTR_MMCRA, CPU_FTR_CTRL, CPU_FTR_SMT,
CPU_FTR_PURR, CPU_FTR_SPURR, CPU_FTR_DSCR, CPU_FTR_PKEY,
CPU_FTR_VMX_COPY, CPU_FTR_CFAR, CPU_FTR_HAS_PPR.

To fix it we need to mask the set of ALWAYS features with the base set
of DT CPU features, ie. the features that are always enabled by DT CPU
features. That way there are no bits in the ALWAYS mask that are not
also always set by DT CPU features.

Fixes: db5ae1c155af ("powerpc/64s: Refine feature sets for little endian builds")
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

show more ...

Merge branch 'WIP.x86/asm' into x86/urgent, because the topic is ready

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge branch 'linus' into x86/pti to pick up upstream changes

Signed-off-by: Ingo Molnar <mingo@kernel.org>