The IRQ signal from external devices on this board is connected to
the XIRQ4 pin of the SoC. The IRQ number should be 52, not 50.
Fixes: a5e921b477 ("ARM: dts: uniphier: add ProXstream2 and PH1-LD6b SoC/board support")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit enables standby support on Armada 385 DB-AP board, because
the PM initalization routine requires "marvell,armada380" compatible
string for all Armada 38x-based platforms.
Beside the compatible "marvell,armada38x" was wrong and should be fixed
in the stable kernels too.
[gregory.clement@free-electrons.com: add information, about the fixes]
Fixes: e5ee12817e ("ARM: mvebu: Add Armada 385 Access Point
Development Board support")
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: <stable@vger.kernel.org>
The DTS erronously uses the wrong reg mapping and IRQ numbers for some
UART, WDT and timer nodes. Fix this.
Reported-by: John Wehle <john@feith.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
fix SMM emulation on Nehalem processors. The others fix some cases
that became apparent as work progressed on the firmware side.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJWHms0AAoJEL/70l94x66DfQkIAIpya6c/1UAthxSTqJ1wFOf8
ZKp3GCMjUjtm9k88kk6JGOlPiAvWz7CG9BVbptpkJGpgoDzquvr6ZKGG2BV88F17
MnkZCid4IBW6VeKYy7R2otkKw7+Pw8DTHRQks+VI6BN/KkeaZLzh5J8+FAl4ZaWk
YX/VulRce6SfZPYuUTRkkK8aebsopZNVG8mwWIGuBYwyH54R3KH1k/euX2joUPwm
oopzmQLgEWW7e3RsO67T36rIRgEorJLZaiiexvj1djI+e0kEEudvhJ9nC6eB52qa
oZ9nR0nkkmBmrBF8gldKDZBC+Y/ci1cJLAaoi7tdsp0wVCebPxubwbPOXxKwD8g=
=ij8Q
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Bug fixes for system management mode emulation.
The first two patches fix SMM emulation on Nehalem processors. The
others fix some cases that became apparent as work progressed on the
firmware side"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: fix RSM into 64-bit protected mode
KVM: x86: fix previous commit for 32-bit
KVM: x86: fix SMI to halted VCPU
KVM: x86: clean up kvm_arch_vcpu_runnable
KVM: x86: map/unmap private slots in __x86_set_memory_region
KVM: x86: build kvm_userspace_memory_region in x86_set_memory_region
Some recently added code to avoid a bug introduced a build error
when CONFIG_PM is disabled and a macro is hidden:
arch/arm/mach-pxa/pxa3xx.c: In function 'pxa3xx_init':
arch/arm/mach-pxa/pxa3xx.c:439:3: error: 'NDCR' undeclared (first use in this function)
NDCR = (NDCR & ~NDCR_ND_ARB_EN) | NDCR_ND_ARB_CNTL;
^
This moves the macro outside of the #ifdef so it can be
referenced correctly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: adf3442cc8 ("ARM: pxa: fix DFI bus lockups on startup")
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
It includes a single fix for i.MX7D, which corrects the base address of
UART2 in device tree.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJWG7gvAAoJEFBXWFqHsHzOnysH/3g6f2HhjnyP627EgE8ipJJB
3S/rteN22cV0e8siM6oxa97gMjVGX9A6asGKkpE5v26SGKDbvhUhH5WCqKUioFCn
LDjcNUK1Yd830K/t7dyBM4bZlPp7nLCfLMzFG+8PvVWl5OvfR5eJ14KLAyS0mO9b
F/GoqV2VSrTw5AA3gOfBhckHtVZJJ01b4vu28G9NSc8eU4W5aJDQMDaZ40MLftuS
ZEt9o+us/YlJQzuIeKN2sk5Rb+w2jeZOXWEKOZfIFab3aE8BY+/NgedqMNwf1J1Z
EWGQ6oIOIe5vU6k9j0neQ4a5hVqW+layzgdXZaYhWzfkpM7DFuvVyeK08yiARts=
=h6oq
-----END PGP SIGNATURE-----
Merge tag 'imx-fixes-4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Pull "The i.MX fixes for 4.3, 2nd round:" from Shawn Guo:
It includes a single fix for i.MX7D, which corrects the base address of
UART2 in device tree.
* tag 'imx-fixes-4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx7d: Fix UART2 base address
- BG2Q USB PHY compatible fix (also tagged for stable v4.2)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=BDI7
-----END PGP SIGNATURE-----
Merge tag 'berlin-fixes-for-4.3-1' of git://git.infradead.org/users/hesselba/linux-berlin into fixes
Merge "Marvell Berlin fixes for v4.3 take 1" from Sebastian Hesselbarth:
- BG2Q USB PHY compatible fix (also tagged for stable v4.2)
* tag 'berlin-fixes-for-4.3-1' of git://git.infradead.org/users/hesselba/linux-berlin:
ARM: dts: berlin: change BG2Q's USB PHY compatible
In order to get into 64-bit protected mode, you need to enable
paging while EFER.LMA=1. For this to work, CS.L must be 0.
Currently, we load the segments before CR0 and CR4, which means
that if RSM returns into 64-bit protected mode CS.L is already 1
and everything breaks.
Luckily, CS.L=0 is always the case when executing RSM, because it
is forbidden to execute RSM from 64-bit protected mode. Hence it
is enough to load CR0 and CR4 first, and only then the segments.
Fixes: 660a5d517a
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When multiple GOP devices exists, but none of them implements
ConOut, the code should just choose the first GOP (according to
the comments). But currently 'fb_base' will refer to the last GOP,
while other parameters to the first GOP, which will likely
result in a garbled display.
I can reliably reproduce this bug using my ASRock Z87M Extreme4
motherboard with CSM and integrated GPU disabled, and two PCIe
video cards (NVidia GT640 and GTX980), booting from efi-stub
(booting from grub works fine). On the primary display the
ASRock logo remains and on the secondary screen it is garbled
up completely.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Cc: <stable@vger.kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1444659236-24837-2-git-send-email-matt@codeblueprint.co.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Commit 208473c1f3 ("ARM: wire up new syscalls") hooked up the new
userfaultfd and membarrier syscalls for ARM, so do the same for our
compat syscall table in arm64.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- Fix AVX detection to prevent use of non-existent AESNI.
- Some SPARC ciphers did not set their IV size which may lead to
memory corruption"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: ahash - ensure statesize is non-zero
crypto: camellia_aesni_avx - Fix CPU feature checks
crypto: sparc - initialize blkcipher.ivsize
An SMI to a halted VCPU must wake it up, hence a VCPU with a pending
SMI must be considered runnable.
Fixes: 64d6067057
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Split the huge conditional in two functions.
Fixes: 64d6067057
Cc: stable@vger.kernel.org
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Otherwise, two copies (one of them never populated and thus bogus)
are allocated for the regular and SMM address spaces. This breaks
SMM with EPT but without unrestricted guest support, because the
SMM copy of the identity page map is all zeros.
By moving the allocation to the caller we also remove the last
vestiges of kernel-allocated memory regions (not accessible anymore
in userspace since commit b74a07beed, "KVM: Remove kernel-allocated
memory regions", 2010-06-21); that is a nice bonus.
Reported-by: Alexandre DERUMIER <aderumier@odiso.com>
Cc: stable@vger.kernel.org
Fixes: 9da0e4d5ac
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The next patch will make x86_set_memory_region fill the
userspace_addr. Since the struct is not used untouched
anymore, it makes sense to build it in x86_set_memory_region
directly; it also simplifies the callers.
Reported-by: Alexandre DERUMIER <aderumier@odiso.com>
Cc: stable@vger.kernel.org
Fixes: 9da0e4d5ac
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
LDO1 regulator (VDD_SD) is connected to SoC's vddshv8. vddshv8 needs to
be kept always powered (see commit 5a0f93c657 ("ARM: dts: Add
am57xx-beagle-x15"), but at the moment VDD_SD is enabled/disabled
depending on whether an SD card is inserted or not.
This patch sets LDO1 regulator to always-on.
This patch has a side effect of fixing another issue, HDMI DDC not
working when SD card is not inserted:
Why this happens is that the tpd12s015 (HDMI level shifter/ESD
protection chip) has LS_OE GPIO input, which needs to be enabled for the
HDMI DDC to work. LS_OE comes from gpio6_28. The pin that provides
gpio6_28 is powered by vddshv8, and vddshv8 comes from VDD_SD.
So when SD card is not inserted, VDD_SD is disabled, and LS_OE stays
off.
The proper fix for the HDMI DDC issue would be to maybe have the pinctrl
framework manage the pin specific power.
Apparently this fixes also a third issue (copy paste from Kishon's
patch):
ldo1_reg in addition to being connected to the io lines is also
connected to the card detect line. On card removal, omap_hsmmc
driver does a regulator_disable causing card detect line to be
pulled down. This raises a card insertion interrupt and once the
MMC core detects there is no card inserted, it does a
regulator disable which again raises a card insertion interrupt.
This happens in a loop causing infinite MMC interrupts.
Fixes: 5a0f93c657 ("ARM: dts: Add am57xx-beagle-x15")
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Louis McCarthy <compeoree@gmail.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
On each next iteration of for_each_compatible_node() the reference
counter for current device node is already decreased by the loop
iterator. The manual call to of_node_get() is required only on loop
break which is not happening here.
The double of_node_get() (with enabled CONFIG_OF_DYNAMIC) lead to
decreasing the counter below expected, initial value.
Fixes: fe4034a3fa ("ARM: EXYNOS: Add missing of_node_put() when parsing power domains")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
MINSIGSTKSZ and SIGSTKSZ for ARM64 are not correctly set in latest kernel.
This patch fixes this issue.
This issue is reported in LTP (testcase: sigaltstack02.c).
Testcase failed when sigaltstack() called with stack size "MINSIGSTKSZ - 1"
Since in Glibc-2.22, MINSIGSTKSZ is set to 5120 but in kernel
it is set to 2048 so testcase gets failed.
Testcase Output:
sigaltstack02 1 TPASS : stgaltstack() fails, Invalid Flag value,errno:22
sigaltstack02 2 TFAIL : sigaltstack() returned 0, expected -1,errno:12
Reported Issue in Glibc Bugzilla:
Bugfix in Glibc-2.22: [Bug 16850]
https://sourceware.org/bugzilla/show_bug.cgi?id=16850
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Akhilesh Kumar <akhilesh.k@samsung.com>
Signed-off-by: Manjeet Pawar <manjeet.p@samsung.com>
Signed-off-by: Rohit Thapliyal <r.thapliyal@samsung.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Commit df057cc7b4 ("arm64: errata: add module build workaround for
erratum #843419") sets CFLAGS_MODULE to ensure that the large memory
model is used by the compiler when building kernel modules.
However, CFLAGS_MODULE is an environment variable and intended to be
overridden on the command line, which appears to be the case with the
Ubuntu kernel packaging system, so use KBUILD_CFLAGS_MODULE instead.
Cc: <stable@vger.kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes: df057cc7b4 ("arm64: errata: add module build workaround for erratum #843419")
Reported-by: Dann Frazier <dann.frazier@canonical.com>
Tested-by: Dann Frazier <dann.frazier@canonical.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Pull MIPS fixes from Ralf Baechle:
- MIPS didn't define the new ioremap_uc. Defined it as an alias for
ioremap_uncached.
- Replace workaround for MIPS16 build issue with a correct one.
* git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Define ioremap_uc
MIPS: UAPI: Ignore __arch_swab{16,32,64} when using MIPS16
Revert "MIPS: UAPI: Fix unrecognized opcode WSBH/DSBH/DSHD when using MIPS16."
Pull swiotlb fixlet from Konrad Rzeszutek Wilk:
"Enable the SWIOTLB under 32-bit PAE kernels.
Nowadays most distros enable this due to CONFIG_HYPERVISOR|XEN=y which
select SWIOTLB. But for those that are not interested in
virtualization and wanting to use 32-bit PAE kernels and wanting to
have working DMA operations - this configures it for them"
* 'stable/for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
swiotlb: Enable it under x86 PAE
Pull strscpy powerpc fix from Chris Metcalf.
Fix powerpc big-endian build.
* 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/powerpc: provide zero_bytemask() for big-endian
The fixes for this week include one small patch that was years in the
making and that finally fixes using all eight CPUs on exynos542x.
The rest are lots of minor changes for sunxi, imx, exynos and shmobile
* fixing the minimum voltage for Allwinner A20
* thermal boot issue on SMDK5250.
* invalid clock used for FIMD IOMMU.
* audio on Renesas r8a7790/r8a7791
* invalid clock used for FIMD IOMMU
* LEDs on exynos5422-odroidxu3-common
* usb pin control for imx-rex
* imx53: fix PMIC interrupt level
* a Makefile typo
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=IsHY
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"The fixes for this week include one small patch that was years in the
making and that finally fixes using all eight CPUs on exynos542x.
The rest are lots of minor changes for sunxi, imx, exynos and shmobile
- fixing the minimum voltage for Allwinner A20
- thermal boot issue on SMDK5250.
- invalid clock used for FIMD IOMMU.
- audio on Renesas r8a7790/r8a7791
- invalid clock used for FIMD IOMMU
- LEDs on exynos5422-odroidxu3-common
- usb pin control for imx-rex
- imx53: fix PMIC interrupt level
- a Makefile typo"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420
ARM: dts: Fix bootup thermal issue on smdk5250
ARM: shmobile: r8a7791 dtsi: Add CPG/MSTP Clock Domain for sound
ARM: shmobile: r8a7790 dtsi: Add CPG/MSTP Clock Domain for sound
arm-cci500: Don't enable PMU driver by default
ARM: dts: fix usb pin control for imx-rex dts
ARM: imx53: qsrb: fix PMIC interrupt level
ARM: imx53: include IRQ dt-bindings header
ARM: dts: add suspend opp to exynos4412
ARM: dts: Fix LEDs on exynos5422-odroidxu3
ARM: EXYNOS: reset Little cores when cpu is up
ARM: dts: Fix Makefile target for sun4i-a10-itead-iteaduino-plus
ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to meet SoC specifications
All unrecovered machine check errors on PowerNV should cause an
immediate panic. There are 2 reasons that this is the right policy:
it's not safe to continue, and we're already trying to reboot.
Firstly, if we go through the recovery process and do not successfully
recover, we can't be sure about the state of the machine, and it is
not safe to recover and proceed.
Linux knows about the following sources of Machine Check Errors:
- Uncorrectable Errors (UE)
- Effective - Real Address Translation (ERAT)
- Segment Lookaside Buffer (SLB)
- Translation Lookaside Buffer (TLB)
- Unknown/Unrecognised
In the SLB, TLB and ERAT cases, we can further categorise these as
parity errors, multihit errors or unknown/unrecognised.
We can handle SLB errors by flushing and reloading the SLB. We can
handle TLB and ERAT multihit errors by flushing the TLB. (It appears
we may not handle TLB and ERAT parity errors: I will investigate
further and send a followup patch if appropriate.)
This leaves us with uncorrectable errors. Uncorrectable errors are
usually the result of ECC memory detecting an error that it cannot
correct, but they also crop up in the context of PCI cards failing
during DMA writes, and during CAPI error events.
There are several types of UE, and there are 3 places a UE can occur:
Skiboot, the kernel, and userspace. For Skiboot errors, we have the
facility to make some recoverable. For userspace, we can simply kill
(SIGBUS) the affected process. We have no meaningful way to deal with
UEs in kernel space or in unrecoverable sections of Skiboot.
Currently, these unrecovered UEs fall through to
machine_check_expection() in traps.c, which calls die(), which OOPSes
and sends SIGBUS to the process. This sometimes allows us to stumble
onwards. For example we've seen UEs kill the kernel eehd and
khugepaged. However, the process killed could have held a lock, or it
could have been a more important process, etc: we can no longer make
any assertions about the state of the machine. Similarly if we see a
UE in skiboot (and again we've seen this happen), we're not in a
position where we can make any assertions about the state of the
machine.
Likewise, for unknown or unrecognised errors, we're not able to say
anything about the state of the machine.
Therefore, if we have an unrecovered MCE, the most appropriate thing
to do is to panic.
The second reason is that since e784b6499d ("powerpc/powernv: Invoke
opal_cec_reboot2() on unrecoverable machine check errors."), we
attempt a special OPAL reboot on an unhandled MCE. This is so the
hardware can record error data for later debugging.
The comments in that commit assert that we are heading down the panic
path anyway. At the moment this is not always true. With UEs in kernel
space, for instance, they are marked as recoverable by the hardware,
so if the attempt to reboot failed (e.g. old Skiboot), we wouldn't
panic() but would simply die() and OOPS. It doesn't make sense to be
staggering on if we've just tried to reboot: we should panic().
Explicitly panic() on unrecovered MCEs on PowerNV.
Update the comments appropriately.
This fixes some hangs following EEH events on cxlflash setups.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Reviewed-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
native_hpte_clear() is called in real mode from two places:
- Early in boot during htab initialisation if firmware assisted dump is
active.
- Late in the kexec path.
In both contexts there is no need to disable interrupts are they are
already disabled. Furthermore, locking around the tlbie() is only required
for pre POWER5 hardware.
On POWER5 or newer hardware concurrent tlbie()s work as expected and on pre
POWER5 hardware concurrent tlbie()s could result in deadlock. This code
would only be executed at crashdump time, during which all bets are off,
concurrent tlbie()s are unlikely and taking locks is unsafe therefore the
best course of action is to simply do nothing. Concurrent tlbie()s are not
possible in the first case as secondary CPUs have not come up yet.
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
For some reason, only the little-endian flavor of
powerpc provided the zero_bytemask() implementation.
Reported-by: Michal Sojka <sojkam1@fel.cvut.cz>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
We need to explicitly check the AVX and AES CPU features, as we can't
infer them from the related XSAVE feature flags. For example, the
Core i3 2310M passes the XSAVE feature test but does not implement
AES-NI.
Reported-and-tested-by: Stéphane Glondu <glondu@debian.org>
References: https://bugs.debian.org/800934
Fixes: ce4f5f9b65 ("x86/fpu, crypto x86/camellia_aesni_avx: Simplify...")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable <stable@vger.kernel.org> # 4.2
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Some of the crypto algorithms write to the initialization vector,
but no space has been allocated for it. This clobbers adjacent memory.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Most distributions end up enabling SWIOTLB already with 32-bit
kernels due to the combination of CONFIG_HYPERVISOR_GUEST|CONFIG_XEN=y
as those end up requiring the SWIOTLB.
However for those that are not interested in virtualization and
run in 32-bit they will discover that: "32-bit PAE 4.2.0 kernel
(no IOMMU code) would hang when writing to my USB disk. The kernel
spews million(-ish messages per sec) to syslog, effectively
"hanging" userspace with my kernel.
Oct 2 14:33:06 voodoochild kernel: [ 223.287447] nommu_map_sg:
overflow 25dcac000+1024 of device mask ffffffff
Oct 2 14:33:06 voodoochild kernel: [ 223.287448] nommu_map_sg:
overflow 25dcac000+1024 of device mask ffffffff
Oct 2 14:33:06 voodoochild kernel: [ 223.287449] nommu_map_sg:
overflow 25dcac000+1024 of device mask ffffffff
... etc ..."
Enabling it makes the problem go away.
N.B. With a6dfa128ce
"config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected"
we also have the important part of the SG macros enabled to make this
work properly - in case anybody wants to backport this patch.
Reported-and-Tested-by: Christian Melki <christian.melki@t2data.com>
Signed-off-by: Christian Melki <christian.melki@t2data.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
- A couple of locking fixes for RT kernels
- Avoid printing bogus initrd warnings when initrd isn't present
- Performance fix for random mmap file readahead
- Typo fix
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABCgAGBQJWFO+aAAoJELescNyEwWM0z14IALpleyenZXl+xqxMjNyOXouG
/2SbTZH7iD/vnfCL6G7/Poq00I2ghtBSRFGXajfg7V0mjH1HTfVXVN19IXaUUwjW
IfAMqSyC43dDBdsGn3A1ZqPRNk+chxjwz7zimGqPowuM87C4aj/sqetBSnuybZtB
lSYfCFGpDj8cpsJ0xwYYhuq8xUgixQMslTj+rVAFtfsLkDHUu175l+vP7t2xOv5v
bmyPlz15O/v9febnLYFVFPWZB2IWfvaFkR30qUGsMe6BGWdGDe/RGUPksZDLlPdL
Yj4AKq+9Bx0lPvO+vNEqfvScKdVjMpttVEMfi2cQ8kUbD1rRPZ7ZTHsfcEOuB1w=
=Zi+I
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"This addresses a couple of issues found with RT, a broken initrd
message in the console log and a simple performance fix for some MMC
workloads.
Summary:
- A couple of locking fixes for RT kernels
- Avoid printing bogus initrd warnings when initrd isn't present
- Performance fix for random mmap file readahead
- Typo fix"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: replace read_lock to rcu lock in call_break_hook
arm64: Don't relocate non-existent initrd
arm64: convert patch_lock to raw lock
arm64: readahead: fault retry breaks mmap file read random detection
arm64: debug: Fix typo in debug-monitors.c
Pull strscpy fixes from Chris Metcalf :
"This patch series fixes up a couple of architecture issues where
strscpy wasn't configured correctly (missing on h8300, duplicating
local and asm-generic copies on powerpc and tile).
It also adds a use of zero_bytemask() to the final store for strscpy
to avoid writing uninitialized data to the destination. However, to
make this work we had to add support for zero_bytemask() to the two
architectures that didn't have it (alpha and tile), because they were
providing their own local copies, but didn't provide the
zero_bytemask() that was previously only required when building with
CONFIG_DCACHE_WORD_ACCESS"
[ Side note: there is still no actual users of strscpy except for the
one preexisting use in arch/tile that predates the generic version.
So this is all about fixing the infrastructure so that we eventually
can start using it. - Linus ]
* 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
strscpy: zero any trailing garbage bytes in the destination
word-at-a-time.h: support zero_bytemask() on alpha and tile
word-at-a-time.h: fix some Kbuild files
arch/tile added word-at-a-time.h after the patch that added generic-y
entries; the generic-y entry is now stale.
arch/h8300 is newer than the generic-y patch for word-at-a-time.h,
and needs a generic-y entry.
arch/powerpc seems to have gotten a generic-y entry by mistake in
the first patch; this change removes it.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
When booting a kernel without an initrd, the kernel reports that it
moves -1 bytes worth, having gone through the motions with initrd_start
equal to initrd_end:
Moving initrd from [4080000000-407fffffff] to [9fff49000-9fff48fff]
Prevent this by bailing out early when the initrd size is zero (i.e. we
have no initrd), avoiding the confusing message and other associated
work.
Fixes: 1570f0d7ab ("arm64: support initrd outside kernel linear map")
Cc: Mark Salter <msalter@redhat.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
DSA expects the host_dev pointer to be the device structure associated
with the MDIO bus controller driver. First commit breaking that was
c3a07134e6 ("mv643xx_eth: convert to use the Marvell Orion MDIO
driver"), and then, it got completely under the radar for a while.
Reported-by: Frans van de Wiel <fvdw@fvdw.eu>
Fixes: c3a07134e6 ("mv643xx_eth: convert to use the Marvell Orion MDIO driver")
CC: stable@vger.kernel.org
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
- Fix VM save performance regression with x86 PV guests.
- Make kexec work in x86 PVHVM guests (if Xen has the soft-reset ABI).
- Other minor fixes.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJWE8wQAAoJEFxbo/MsZsTRVTMH/0eqSg2M78wv4sBl234Y3FE9
AN8KFUdlkK7VN9v0uuLMDSKIWNUuFJIvo/2rElWGRiX2Q+/pfnQg3ZSFhub9S8uL
T4LCvmG9viRFb2oUz792ewqncSw3X98Jpto4smA820gJRjndBSWm5HUKUtPAkv1M
l5DFMEgOeHbu+wCbKD/ZPEt5K9GsIaNviSNoWtYHirZwrd00oLmNbWp+g8lIGQiT
3vLW0SaZzjL6akKxihb/p3WZ9eNmyz8yk0V7dItUEVUB9qoaDDLJ5qIRSHHWTWQD
Jza/GE32VallZLuEXGG5/D86MsnyVYHC+lZtwo2IptOGm8v7WuZRv094wI1ev5c=
=aiDw
-----END PGP SIGNATURE-----
Merge tag 'for-linus-4.3b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen bug fixes from David Vrabel:
- Fix VM save performance regression with x86 PV guests
- Make kexec work in x86 PVHVM guests (if Xen has the soft-reset ABI)
- Other minor fixes.
* tag 'for-linus-4.3b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen/p2m: hint at the last populated P2M entry
x86/xen: Do not clip xen_e820_map to xen_e820_map_entries when sanitizing map
x86/xen: Support kexec/kdump in HVM guests by doing a soft reset
xen/x86: Don't try to write syscall-related MSRs for PV guests
xen: use correct type for HYPERVISOR_memory_op()
Pull s390 fixes from Martin Schwidefsky:
"Three bug fixes and an update to the default configuration"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/defconfig: set SCSI_DH=y
s390/vtime: correct scaled cputime of partially idle CPUs
s390/boot/decompression: disable floating point in decompressor
s390/numa: use correct type for node_to_cpumask_map
With commit 633d6f17cd (x86/xen: prepare
p2m list for memory hotplug) the P2M may be sized to accomdate a much
larger amount of memory than the domain currently has.
When saving a domain, the toolstack must scan all the P2M looking for
populated pages. This results in a performance regression due to the
unnecessary scanning.
Instead of reporting (via shared_info) the maximum possible size of
the P2M, hint at the last PFN which might be populated. This hint is
increased as new leaves are added to the P2M (in the expectation that
they will be used for populated entries).
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Cc: <stable@vger.kernel.org> # 4.0+
* Add Add CPG/MSTP Clock Domain for sound on r8a779[01] SoCs.
This allows sound to work once again.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=0wuy
-----END PGP SIGNATURE-----
Merge tag 'renesas-fixes-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Merge "Renesas ARM Based SoC Fixes for v4.3" from Simon Horman
* Add Add CPG/MSTP Clock Domain for sound on r8a779[01] SoCs.
This allows sound to work once again.
* tag 'renesas-fixes-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7791 dtsi: Add CPG/MSTP Clock Domain for sound
ARM: shmobile: r8a7790 dtsi: Add CPG/MSTP Clock Domain for sound
Two patches, one that fixes one of the DT build, and the other raising the
voltage of the lowest OPP of the A20 to remain within the SoC operating
boundaries
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=4XBA
-----END PGP SIGNATURE-----
Merge tag 'sunxi-fixes-for-4.3' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes
Merge "Allwinner fixes for 4.3" from Maxime Ripard:
Two patches, one that fixes one of the DT build, and the other raising the
voltage of the lowest OPP of the A20 to remain within the SoC operating
boundaries
* tag 'sunxi-fixes-for-4.3' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
ARM: dts: Fix Makefile target for sun4i-a10-itead-iteaduino-plus
ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to meet SoC specifications
- fix invalid clock used for FIMD IOMMU
- fix thermal boot issue smdk5250-smdk5250
- fix S2R on exynos4412 trats2 boards
- fix LEDs on exynos5422-odroidxu3-common
- fix booting of all 8 cores on exynos542x
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=lpRb
-----END PGP SIGNATURE-----
Merge tag 'samsung-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
Merge "Samsung fixes for v4.3" from Kukjin Kim:
- fix invalid clock used for FIMD IOMMU
- fix thermal boot issue smdk5250-smdk5250
- fix S2R on exynos4412 trats2 boards
- fix LEDs on exynos5422-odroidxu3-common
- fix booting of all 8 cores on exynos542x
* tag 'samsung-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420
ARM: dts: Fix bootup thermal issue on smdk5250
ARM: dts: add suspend opp to exynos4412
ARM: dts: Fix LEDs on exynos5422-odroidxu3
ARM: EXYNOS: reset Little cores when cpu is up
All architectures must now define ioremap_uc(), but MIPS currently
only has ioremap_nocache().
Fixes: 4c73e89266 ("arch/*/io.h: Add ioremap_uc() to all architectures")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11263/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
When running kprobe test on arm64 rt kernel, it reports the below warning:
root@qemu7:~# modprobe kprobe_example
BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:917
in_atomic(): 0, irqs_disabled(): 128, pid: 484, name: modprobe
CPU: 0 PID: 484 Comm: modprobe Not tainted 4.1.6-rt5 #2
Hardware name: linux,dummy-virt (DT)
Call trace:
[<ffffffc0000891b8>] dump_backtrace+0x0/0x128
[<ffffffc000089300>] show_stack+0x20/0x30
[<ffffffc00061dae8>] dump_stack+0x1c/0x28
[<ffffffc0000bbad0>] ___might_sleep+0x120/0x198
[<ffffffc0006223e8>] rt_spin_lock+0x28/0x40
[<ffffffc000622b30>] __aarch64_insn_write+0x28/0x78
[<ffffffc000622e48>] aarch64_insn_patch_text_nosync+0x18/0x48
[<ffffffc000622ee8>] aarch64_insn_patch_text_cb+0x70/0xa0
[<ffffffc000622f40>] aarch64_insn_patch_text_sync+0x28/0x48
[<ffffffc0006236e0>] arch_arm_kprobe+0x38/0x48
[<ffffffc00010e6f4>] arm_kprobe+0x34/0x50
[<ffffffc000110374>] register_kprobe+0x4cc/0x5b8
[<ffffffbffc002038>] kprobe_init+0x38/0x7c [kprobe_example]
[<ffffffc000084240>] do_one_initcall+0x90/0x1b0
[<ffffffc00061c498>] do_init_module+0x6c/0x1cc
[<ffffffc0000fd0c0>] load_module+0x17f8/0x1db0
[<ffffffc0000fd8cc>] SyS_finit_module+0xb4/0xc8
Convert patch_lock to raw loc kto avoid this issue.
Although the problem is found on rt kernel, the fix should be applicable to
mainline kernel too.
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Yang Shi <yang.shi@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This is the arm64 portion of commit 45cac65b0f ("readahead: fault
retry breaks mmap file read random detection"), which was absent from
the initial port and has since gone unnoticed. The original commit says:
> .fault now can retry. The retry can break state machine of .fault. In
> filemap_fault, if page is miss, ra->mmap_miss is increased. In the second
> try, since the page is in page cache now, ra->mmap_miss is decreased. And
> these are done in one fault, so we can't detect random mmap file access.
>
> Add a new flag to indicate .fault is tried once. In the second try, skip
> ra->mmap_miss decreasing. The filemap_fault state machine is ok with it.
With this change, Mark reports that:
> Random read improves by 250%, sequential read improves by 40%, and
> random write by 400% to an eMMC device with dm crypto wrapped around it.
Cc: Shaohua Li <shli@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Signed-off-by: Riley Andrews <riandrews@android.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
