On r8a7791, i2c6 (aka iic3) doesn't need pinmux, but the koelsch dts
refers to non-existent pinmux configuration data:
pinmux core: sh-pfc does not support function i2c6
sh-pfc e6060000.pfc: invalid function i2c6 in map table
Remove it to fix this.
Fixes: commit 1d41f36a68 ("ARM: shmobile:
koelsch dts: Add VDD MPU regulator for DVFS")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Olof Johansson <olof@lixom.net>
Working on Gigabit/PCIe support in U-Boot for Apalis T30 I realised
that the current device tree source includes for our modules only
happen to work due to referencing the on-carrier 5v0 supply from USB
which is not at all available on-module. The modules actually contain
TPS60150 charge pumps to generate the PMIC required 5 volts from the
one and only 3.3 volt module supply. This patch fixes this.
(Note: When back-porting this to v3.16 stable releases, simply drop the
change to tegra30-apalis.dtsi; that file was added in v3.17)
Cc: <stable@vger.kernel.org> #v3.16+
Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
dts files and addition of the new Rockchip list to MAINTAINERS.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABCAAGBQJT+hwkAAoJEPOmecmc0R2Bda4IAJ7rxypWxi8RtfxULHu1oGxZ
cdmAsaedAkjTn6tye/99lv1WkLzUD+Q3AxLX6Glu8PgTkocbwtkVTP+gMbv7zwfN
Z9bA6kazPL4Rskr6Am8BFKkGhXHCXChGP1J3z9Gyh07Vu2+3zsvRzyM7hySt3TqZ
EA2dL/uODlukw6EPzFaqGWZLn1OuJmkHXDfnZ3lBI/GFZD9qt5DnYswMBlDlIwr6
D08jmcleRA3wpnY1HXYR2cN1sJmcEP6xVE8ApXd71X0MtumEy49ZTR+4T5/Sh/XN
OPheoH3UUVtXVrAa5fsoUE2xsKs3PZgnIHk1kQklpbw+HArbN+aW0Jh6CySb65Q=
=aNJj
-----END PGP SIGNATURE-----
Merge tag 'v3.17-rockchip-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes
Merge "ARM: rockchip: fix for 3.17" from Heiko Stubner:
Pinctrl that got accidentially dropped when reorganizing the
dts files and addition of the new Rockchip list to MAINTAINERS.
* tag 'v3.17-rockchip-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
MAINTAINERS: add new Rockchip SoC list
ARM: dts: rockchip: readd missing mmc0 pinctrl settings
Signed-off-by: Olof Johansson <olof@lixom.net>
During the restructuring of the Rockchip Cortex-A9 dtsi files it seems
like the pinctrl settings vanished at some point from the mmc0 support.
This of course renders them unusable, so readd the necessary pinctrl
properties.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Only a single patch in here that fixes a DTC warning.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=PL45
-----END PGP SIGNATURE-----
Merge tag 'sunxi-dt-for-3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes
Merge "Allwinner DT changes, take 2" from Maxime Ripard:
Only a single patch in here that fixes a DTC warning.
* tag 'sunxi-dt-for-3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
ARM: dt: sun6i: Add #address-cells and #size-cells to i2c controller nodes
Signed-off-by: Olof Johansson <olof@lixom.net>
This small set of fixes addresses a few issues introduced during the
merge window, including:
- Fix typo in I-cache detection that was causing us to treat all
I-caches as aliasing
- Hook up memfd_create and getrandom syscalls for native and compat
- Revert a temporary hack for defconfig builds in -next (the audit
tree changes didn't make it in this merge window)
- A couple of UEFI fixes for TEXT_OFFSET fuzzing and /memreserve/
- A simple sparsemem fix for 48-bit physical addressing
- Small defconfig updates to get autotesters working with X-gene
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=BqdY
-----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 small set of fixes addresses a few issues introduced during the
merge window, including:
- fix typo in I-cache detection that was causing us to treat all
I-caches as aliasing
- hook up memfd_create and getrandom syscalls for native and compat
- revert a temporary hack for defconfig builds in -next (the audit
tree changes didn't make it in this merge window)
- a couple of UEFI fixes for TEXT_OFFSET fuzzing and /memreserve/
- a simple sparsemem fix for 48-bit physical addressing
- small defconfig updates to get autotesters working with X-gene"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
Revert "arm64: Do not invoke audit_syscall_* functions if !CONFIG_AUDIT_SYSCALL"
arm64: mm: update max pa bits to 48
arm64: ignore DT memreserve entries when booting in UEFI mode
arm64: configs: Enable X-Gene SATA and ethernet in defconfig
arm64: align randomized TEXT_OFFSET on 4 kB boundary
asm-generic: add memfd_create system call to unistd.h
arm64: compat: wire up memfd_create and getrandom syscalls for aarch32
arm64: fix typo in I-cache policy detection
Swap it for the more canonical lockdep_assert_held() which always
does the right thing - Guenter Roeck
* Assign the correct value to efi.runtime_version on arm64 so that all
the runtime services can be invoked - Semen Protsenko
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=IUiu
-----END PGP SIGNATURE-----
Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent
Pull EFI fixes from Matt Fleming:
* WARN_ON(!spin_is_locked()) always triggers on non-SMP machines.
Swap it for the more canonical lockdep_assert_held() which always
does the right thing - Guenter Roeck
* Assign the correct value to efi.runtime_version on arm64 so that all
the runtime services can be invoked - Semen Protsenko
Signed-off-by: Ingo Molnar <mingo@kernel.org>
"efi" global data structure contains "runtime_version" field which must
be assigned in order to use it later in Runtime Services virtual calls
(virt_efi_* functions).
Before this patch "runtime_version" was unassigned (0), so each
Runtime Service virtual call that checks revision would fail.
Signed-off-by: Semen Protsenko <semen.protsenko@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Currently the sh-intc driver is compiled on all SuperH and
non-multiplatform SH-Mobile platforms, while it's only used on a limited
number of platforms:
- SuperH: SH2(A), SH3(A), SH4(A)(L) (all but SH5)
- ARM: sh7372, sh73a0
Drop the "default y" on SH_INTC, make all CPU platforms that use it
select it, and protect all sub-options by "if SH_INTC" to fix this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
4bfb358b1d
(ARM: shmobile: Add r8a7791 legacy SDHI clocks)
added r8a7791 SDHI clock support.
But, it is missing
"0x0100: x 1/8" division ratio.
This patch fixes hidden bug.
It is based on R-Car H2 v0.7, R-Car M2 v0.9.
Reported-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
9f13ee6f83
(ARM: shmobile: r8a7790: add div4 clocks)
added r8a7790 DIV4 clock support.
But, it is missing
"0x0100: x 1/8" division ratio.
This patch fixes hidden bug.
It is based on R-Car H2 v0.7, R-Car M2 v0.9.
Reported-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(one has a CVE), and fixing some problems introduced during the merge window
(the CMA bug came in via Andrew, the x86 ones via yours truly).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=lhLd
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Reverting a 3.16 patch, fixing two bugs in device assignment (one has
a CVE), and fixing some problems introduced during the merge window
(the CMA bug came in via Andrew, the x86 ones via yours truly)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
virt/kvm/assigned-dev.c: Set 'dev->irq_source_id' to '-1' after free it
Revert "KVM: x86: Increase the number of fixed MTRR regs to 10"
KVM: x86: do not check CS.DPL against RPL during task switch
KVM: x86: Avoid emulating instructions on #UD mistakenly
PC, KVM, CMA: Fix regression caused by wrong get_order() use
kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)
Increase max i2c bus frequency beyond the default for faster
data transfers. According to the manual, these faster speeds are
only available when the board is wired up the right way. In this case,
the vendor kernel has run at this speed for a long time.
sda-delay is needed for talking to RTC on PMIC, otherwise the i2c
controller never sees an ACK. Strangely the other PMIC i2c slave (the
main one) works fine even without this delay. I Chose value 100 to
match the vendor kernel.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Tested-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The ODROID kernel shows that the PMIC interrupt line is hooked up
to pin GPX3-2.
This is needed for the max77686-irq driver to create the PMIC IRQ
domain, which is needed by max77686-rtc.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Tested-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
For some reason, the audit patches didn't make it out of -next this
merge window, so revert our temporary hack and let the audit guys deal
with fixing up -next.
This reverts commit 2a8f45b040.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Now that we support 48-bit physical addressing, update MAX_PHYSMEM_BITS
accordingly.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@caviumnetworks.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
UEFI provides its own method for marking regions to reserve, via the
memory map which is also used to initialise memblock. So when using the
UEFI memory map, ignore any memreserve entries present in the DT.
Reported-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Currently when run on an APM platform the ARMv8 defconfig has no viable
options for rootfs other than ramdisk which is rather limiting. Since
we already have both SATA and the bits needed for NFS root enabled we just
need to enable the relevant drivers so do that, helping enable direct
testing of upstream.
If the configuration ends up becoming too big we can consider modularising
some of the drivers and asking people to use an initramfs but for now this
is not an issue.
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
When booting via UEFI, the kernel Image is loaded at a 4 kB boundary and
the embedded EFI stub is executed in place. The EFI stub relocates the
Image to reside TEXT_OFFSET bytes above a 2 MB boundary, and jumps into
the kernel proper.
In AArch64, PC relative symbol references are emitted using adrp/add or
adrp/ldr pairs, where the offset into a 4 kB page is resolved using a
separate :lo12: relocation. This implicitly assumes that the code will
always be executed at the same relative offset with respect to a 4 kB
boundary, or the references will point to the wrong address.
This means we should link the kernel at a 4 kB aligned base address in
order to remain compatible with the base address the UEFI loader uses
when doing the initial load of Image. So update the code that generates
TEXT_OFFSET to choose a multiple of 4 kB.
At the same time, update the code so it chooses from the interval [0..2MB)
as the author originally intended.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
get_system_type() is not thread-safe on OCTEON. It uses static data,
also more dangerous issue is that it's calling cvmx_fuse_read_byte()
every time without any synchronization. Currently it's possible to get
processes stuck looping forever in kernel simply by launching multiple
readers of /proc/cpuinfo:
(while true; do cat /proc/cpuinfo > /dev/null; done) &
(while true; do cat /proc/cpuinfo > /dev/null; done) &
...
Fix by initializing the system type string only once during the early
boot.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com>
Cc: stable@vger.kernel.org
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7437/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
The CPS code is doing several memory loads when configuring the VPEs
from secondary cores, so the segmentation control registers must be
initialized in time otherwise the kernel will crash with strange
TLB exceptions.
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7424/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Rename 'eva_entry' to 'platform_eva_init' as required by the new
'eva_init' macro in the eva.h header. Since this macro is now used
in a platform dependent way, it must not depend on its caller so move
the t1 register initialization inside this macro. Also set the .reorder
assembler option in case the caller may have previously set .noreorder.
This may allow a few assembler optimizations. Finally include missing
headers and document the register usage for this macro.
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7423/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Generic code may need to perform certain operations when EVA is
enabled, for example, configure the segmentation registers during
boot. In order to avoid using more CONFIG_EVA ifdefs in the arch code,
such functions will be added in this header instead.
Initially this header contains a macro which will be used by generic
code later on during VPEs configuration on secondary cores.
All it does is to call the platform specific EVA init code in case
EVA is enabled.
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7422/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Commit 4c21b8fd8f (MIPS: seccomp: Handle indirect system calls (o32))
added indirect syscall detection for O32 processes running on MIPS64
but it did not work as expected. The reason is the the scall64-o32
implementation differs compared to scall32-o32. In the former, the v0
(syscall number) register contains the absolute syscall number
(4000 + X) whereas in the latter it contains the relative syscall
number (X). Fix the code to avoid doing an extra addition, and load
the v0 register directly to the first argument for syscall_trace_enter.
Moreover, set the .reorder assembler option in order to have better
control on this part of the assembly code.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7481/
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: James Hogan <james.hogan@imgtec.com>
On MIPS64, O32 processes set both TIF_32BIT_ADDR and
TIF_32BIT_REGS so the previous condition treated O32 applications
as N32 when evaluating seccomp filters. Fix the condition to check
both TIF_32BIT_{REGS, ADDR} for the N32 AUDIT flag.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7480/
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: James Hogan <james.hogan@imgtec.com>
In preemptible kernel, only TIF_USEDFPU flag is reliable to distinguish
whether _init_fpu()/_restore_fp() is needed. Because the value of the
CP0_Status.CU1 isn't changed during preemption.
V2: Fix coding style.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7515/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The nlm_xlp_defconfig build fails with
./arch/mips/include/asm/mach-netlogic/topology.h:15:0:
error: "topology_core_id" redefined [-Werror]
In file included from include/linux/smp.h:59:0,
[ ...]
from arch/mips/mm/dma-default.c:12:
./arch/mips/include/asm/smp.h:41:0:
note: this is the location of the previous definition
and similar errors.
This is caused by commit bda4584cd9 ("MIPS: Support CPU topology files
in sysfs") which adds the defines to arch/mips/include/asm/smp.h.
Remove the defines from arch/mips/include/asm/mach-netlogic/topology.h
as no longer necessary.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7513/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This reverts commit 682367c494,
which causes 32-bit SMP Windows 7 guests to panic.
SeaBIOS has a limit on the number of MTRRs that it can handle,
and this patch exceeded the limit. Better revert it.
Thanks to Nadav Amit for debugging the cause.
Cc: stable@nongnu.org
Reported-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This reverts the check added by commit 5045b46803 (KVM: x86: check CS.DPL
against RPL during task switch, 2014-05-15). Although the CS.DPL=CS.RPL
check is mentioned in table 7-1 of the SDM as causing a #TSS exception,
it is not mentioned in table 6-6 that lists "invalid TSS conditions"
which cause #TSS exceptions. In fact it causes some tests to fail, which
pass on bare-metal.
Keep the rest of the commit, since we will find new uses for it in 3.18.
Reported-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit d40a6898e5 mistakenly caused instructions which are not marked as
EmulateOnUD to be emulated upon #UD exception. The commit caused the check of
whether the instruction flags include EmulateOnUD to never be evaluated. As a
result instructions whose emulation is broken may be emulated. This fix moves
the evaluation of EmulateOnUD so it would be evaluated.
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
[Tweak operand order in &&, remove EmulateOnUD where it's now superfluous.
- Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
fc95ca7284 claims that there is no
functional change but this is not true as it calls get_order() (which
takes bytes) where it should have called order_base_2() and the kernel
stops on VM_BUG_ON().
This replaces get_order() with order_base_2() (round-up version of ilog2).
Suggested-by: Paul Mackerras <paulus@samba.org>
Cc: Alexander Graf <agraf@suse.de>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The current pinfunc define all uart CTS_B IO port for DCE uart 'CTS_B'
IP port. Since uart IP port 'CTS_B' is output, and it don't need to
set 'SELECT_INPUT' bit.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Multicore MIPSes without I/D hardware coherency suffered from a race
condition in the page fault handler. The page table entry was
published before any pending lazy D-cache flush was committed, hence
it allowed execution of stale page cache data by other VPEs in the
system.
To make the cache handling safe we need to perform flushing already in
the set_pte_at function. MIPSes without coherent I-caches can get a
small increase in flushes due to the unavailability of the execute
flag in set_pte_at.
[ralf@linux-mips.org: outlining set_pte_at() saves a good k in a test
build, so I moved its definition from pgtable.h to cache.c.]
Signed-off-by: Lars Persson <larper@axis.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7511/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Using kstrtol to parse the "{e,}memsize" variables was wrong because this
parses signed long numbers. In case of '{e,}memsize' >= 2G, the top bit
is set, resulting to -ERANGE errors and possibly random system memory
boundaries. We fix this by replacing "kstrtol" with "kstrtoul".
We also improve the code to check the kstrtoul return value and
print a warning if an error was returned.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: <stable@vger.kernel.org> # v3.15+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7543/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This adds some code based on code from the Broadcom GPL tar to fix the
reboot problems on BCM4705/BCM4785. I tried rebooting my device for ~10
times and have never seen a problem. This reverts the changes in the
previous commit and adds the real fix as suggested by Rafał.
Setting bit 22 in Reg 22, sel 4 puts the BIU (Bus Interface Unit) into
async mode.
The previous commit was 316cad5c1d [MIPS:
BCM47XX: make reboot more relaiable]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: jogo@openwrt.org
Cc: zajec5@gmail.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7545/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Add common declaration to get rid of following sparse warning: "symbol
'plat_irq_dispatch' was not declared. Should it be static?"
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7539/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Remove unused argument to make the plat_irq_dispatch() function
declaration similar to the realization of other platforms.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7538/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
- support highmem on cores with aliasing data cache. Enable highmem on kc705
by default;
- simplify addition of new core variants (no need to modify Kconfig /
Makefiles);
- improve robustness of unaligned access handler and its interaction with
window overflow/underflow exception handlers;
- deprecate atomic and spill registers syscalls;
- clean up Kconfig: remove orphan MATH_EMULATION, sort 'select' statements;
- wire up renameat2 syscall.
Various fixes:
- fix address checks in dma_{alloc,free}_coherent (runtime BUG);
- fix access to THREAD_RA/THREAD_SP/THREAD_DS (debug build breakage);
- fix TLBTEMP_BASE_2 region handling in fast_second_level_miss (runtime
unrecoverable exception);
- fix a6 and a7 handling in fast_syscall_xtensa (runtime userspace register
clobbering);
- fix kernel/user jump out of fast_unaligned (potential runtime unrecoverable
exception);
- replace termios IOCTL code definitions with constants (userspace build
breakage).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=q9be
-----END PGP SIGNATURE-----
Merge tag 'xtensa-for-next-20140815' into for_next
Xtensa improvements for 3.17:
- support highmem on cores with aliasing data cache. Enable highmem on kc705
by default;
- simplify addition of new core variants (no need to modify Kconfig /
Makefiles);
- improve robustness of unaligned access handler and its interaction with
window overflow/underflow exception handlers;
- deprecate atomic and spill registers syscalls;
- clean up Kconfig: remove orphan MATH_EMULATION, sort 'select' statements;
- wire up renameat2 syscall.
Various fixes:
- fix address checks in dma_{alloc,free}_coherent (runtime BUG);
- fix access to THREAD_RA/THREAD_SP/THREAD_DS (debug build breakage);
- fix TLBTEMP_BASE_2 region handling in fast_second_level_miss (runtime
unrecoverable exception);
- fix a6 and a7 handling in fast_syscall_xtensa (runtime userspace register
clobbering);
- fix kernel/user jump out of fast_unaligned (potential runtime unrecoverable
exception);
- replace termios IOCTL code definitions with constants (userspace build
breakage).
Signed-off-by: Chris Zankel <chris@zankel.net>
In RT kernel, I ran into the following calltrace, so PMU interrupts cannot
be threaded
in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: swapper/0
INFO: lockdep is turned off.
Call Trace:
[<ffffffff8088595c>] dump_stack+0x1c/0x50
[<ffffffff801a958c>] __might_sleep+0x13c/0x148
[<ffffffff80891c54>] rt_spin_lock+0x3c/0xb0
[<ffffffff801ad29c>] __wake_up+0x3c/0x80
[<ffffffff80243ba4>] perf_event_wakeup+0x8c/0xf8
[<ffffffff80243c50>] perf_pending_event+0x40/0x78
[<ffffffff8023d88c>] irq_work_run+0x74/0xc0
[<ffffffff80152640>] mipsxx_pmu_handle_shared_irq+0x110/0x228
[<ffffffff8015276c>] mipsxx_pmu_handle_irq+0x14/0x30
[<ffffffff801ffda4>] handle_irq_event_percpu+0xbc/0x470
[<ffffffff80204478>] handle_percpu_irq+0x98/0xc8
[<ffffffff801ff284>] generic_handle_irq+0x4c/0x68
[<ffffffff8089748c>] do_IRQ+0x2c/0x48
[<ffffffff80105864>] plat_irq_dispatch+0x64/0xd0
[ralf@linux-mips.org: I don't see why based on this register dump the
handler should be marked IRQF_NO_THREAD - but the handler is manipulating
per-CPU resources so we don't want it to be rescheduled to another CPU.]
Signed-off-by: Yang Wei <Wei.Yang@windriver.com>
Cc: a.p.zijlstra@chello.nl
Cc: paulus@samba.org
Cc: mingo@redhat.com
Cc: acme@kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7506/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/arm/ just grew support for the new memfd_create and getrandom
syscalls, so add them to our compat layer too.
Signed-off-by: Will Deacon <will.deacon@arm.com>
This removes an unfortunately placed semi-colon resulting in all instruction
caches being classified as AIVIVT.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
On i.MX6Q, gpu2d_axi and gpu3d_axi are either from AXI or
AHB clock, but on i.MX6DL, gpu2d_axi and gpu3d_axi are
from mmdc_ch0_axi_podf, and they can NOT be gated by mmdc_ch0_axi
's clock gate, the mux option register field(CCM_CBCMR)
is marked as "Reserved" now on i.MX6DL RM, so correct these
two clks setting.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Previous version had an extra 'fsl' which made the pins not match
any entry. The console message,
vf610-pinctrl 40048000.iomuxc: no fsl,pins property in node \
/soc/aips-bus@40000000/iomuxc@40048000/vf610-twr/esdhc1grp
is displayed without the fix. The prior version would generally
work as u-boot sets the pins properly for sdhc. This change allows
Linux sdhc use even if u-boot is built without sdhc support.
Signed-off-by: Bill Pringlemeir <bpringlemeir@nbsps.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Fixes: 0517fe6aa8 ("ARM: dts: vf610-twr: Add support for sdhc1")
Cc: <stable@vger.kernel.org>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Since ARCH_MXC already selects ARCH_HAS_OPP, it's really unnecessary for
SOC_IMX27 and SOC_IMX5 to select it again.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
After the suspend routine running in OCRAM puts DDR into self-refresh,
it will access IOMUXC block to float DDR IO for power saving. A TLB
missing of IOMUXC base address may happen in this case, and triggers an
access to DDR, and thus hangs the system.
The failure is discovered by running suspend/resume on a Cubox-i board.
Though the issue is not Cubox-i specific, it can be hit the on the board
quite easily with the 3.15 or 3.16 kernel.
Fix the issue with a dummy access to IOMUXC block at the beginning of
suspend routine, so that the address translation can be filled into TLB
before DDR is put into self-refresh.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Cc: <stable@vger.kernel.org>
Acked-by: Anson Huang <Anson.Huang@freescale.com>
My earlier patch 1fc593feaf ("ARM: imx: build i.MX6 functions
only when needed") fixed a problem with building an i.MX5 kernel,
but now the problem has returned for the case where we allow
ARMv6K SMP builds in multiplatform. With CONFIG_CPU_V7 disabled,
but i.MX3 and SMP enabled, we get this build error:
arch/arm/mach-imx/built-in.o: In function `v7_secondary_startup':
:(.text+0x5124): undefined reference to `v7_invalidate_l1'
This puts the code inside of an "ifdef CONFIG_SOC_IMX6" to hopefully
do the right thing in all configurations.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Pull idle update from Len Brown:
"Two Intel-platform-specific updates to intel_idle, and a cosmetic
tweak to the turbostat utility"
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: tweak whitespace in output format
intel_idle: Broadwell support
intel_idle: Disable Baytrail Core and Module C6 auto-demotion
Power efficiency improves on Baytrail (Intel Atom Processor E3000)
when Linux disables C6 auto-demotion.
Based on work by Srinidhi Kasagar <srinidhi.kasagar@intel.com>.
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: x86@kernel.org
commit 554086d85e "x86_32, entry: Do syscall exit work on badsys
(CVE-2014-4508)" introduced a new jump label (sysenter_badsys) but
somehow the END statements seem to have gone wrong (at least it
feels that way to me).
This does not seem to be a fatal problem, but just for the sake
of symmetry, change the second syscall_badsys to sysenter_badsys.
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Link: http://lkml.kernel.org/r/1408093066-31021-1-git-send-email-stefan.bader@canonical.com
Acked-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Miscellaneous
- Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=jJGu
-----END PGP SIGNATURE-----
Merge tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull DEFINE_PCI_DEVICE_TABLE removal from Bjorn Helgaas:
"Part two of the PCI changes for v3.17:
- Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)
It's a mechanical change that removes uses of the
DEFINE_PCI_DEVICE_TABLE macro. I waited until later in the merge
window to reduce conflicts, but it's possible you'll still see a few"
* tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
Pull Sparc fixes from David Miller:
"Hook up the memfd syscall, and properly claim all PCI resources
discovered when building the PCI device tree"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Hook up memfd_create system call.
sparc64: Properly claim resources as each PCI bus is probed.
sparc64: Skip bogus PCI bridge ranges.
sparc64: Expand PCI bridge probing debug logging.
Pull kbuild updates from Michal Marek:
- make clean also considers $(extra-m) and $(extra-) to be consistent
- cleanup and fixes in scripts/Makefile.host
- allow to override the name of the Python 2 executable with make
PYTHON=... (only needed for ia64 in practice)
- option to split debugingo into *.dwo files to save disk space if the
compiler supports it (CONFIG_DEBUG_INFO_SPLIT)
- option to use dwarf4 debuginfo if the compiler supports it
(CONFIG_DEBUG_INFO_DWARF4)
- fix for disabling certain warnings with clang
- fix for unneeded rebuild with dash when a command contains
backslashes
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Fix handling of backslashes in *.cmd files
kbuild, LLVMLinux: Supress warnings unless W=1-3
Kbuild: Add a option to enable dwarf4 v2
kbuild: Support split debug info v4
kbuild: allow to override Python command name
kbuild: clean-up and bug fix of scripts/Makefile.host
kbuild: clean up scripts/Makefile.host
kbuild: drop shared library support from Makefile.host
kbuild: fix a bug of C++ host program handling
kbuild: fix a typo in scripts/Makefile.host
scripts/Makefile.clean: clean also $(extra-m) and $(extra-)
Pull more powerpc updates from Ben Herrenschmidt:
"Here are some more powerpc bits for 3.17, essentially fixes.
The biggest series, also aimed at -stable, is from Aneesh and is the
result of weeks and weeks of debugging to find out why the heck or THP
implementation was occasionally triggering multi-hit errors in our
level 1 TLB. It ended up being a combination of issues including
subtleties as to how we should invalidate those special 'MPSS' pages
we use to allow the use of 16M pages inside 4K/64K "base page size"
segments (you really have to love our MMU !)
Another interesting one in the "OMG" category is the series from
Michael adding memory barriers to spin_is_locked(). That's also the
result of many days of debugging to figure out why the semaphore code
would occasionally crash in ways that made no sense. It ended up
being some creative lock stacking that was defeated by the fact that
our locks allow a load inside the locked section to be re-ordered with
the load of the lock value itself (I'm still of two mind about whether
to kill that once and for all by putting a heavier barrier back into
our lock implementation...). The fixes come with a long explanation
in the cset comments, feel free to read it if you feel like having a
headache today"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (25 commits)
powerpc/thp: Add tracepoints to track hugepage invalidate
powerpc/mm: Use read barrier when creating real_pte
powerpc/thp: Use ACCESS_ONCE when loading pmdp
powerpc/thp: Invalidate with vpn in loop
powerpc/thp: Handle combo pages in invalidate
powerpc/thp: Invalidate old 64K based hash page mapping before insert of 4k pte
powerpc/thp: Don't recompute vsid and ssize in loop on invalidate
powerpc/thp: Add write barrier after updating the valid bit
powerpc: reorder per-cpu NUMA information's initialization
powerpc/perf/hv-24x7: Use kmem_cache_free
powerpc/pseries/hvcserver: Fix endian issue in hvcs_get_partner_info
powerpc: Hard disable interrupts in xmon
powerpc: remove duplicate definition of TEXASR_FS
powerpc/pseries: Avoid deadlock on removing ddw
powerpc/pseries: Failure on removing device node
powerpc/boot: Use correct zlib types for comparison
powerpc/powernv: Interface to register/unregister opal dump region
printk: Add function to return log buffer address and size
powerpc: Add POWER8 features to CPU_FTRS_POSSIBLE/ALWAYS
powerpc/ppc476: Disable BTAC
...
window:
Group changes to the device tree. In preparation for adding device tree
overlay support, OF_DYNAMIC is reworked so that a set of device tree
changes can be prepared and applied to the tree all at once. OF_RECONFIG
notifiers see the most significant change here so that users always get
a consistent view of the tree. Notifiers generation is moved from before
a change to after it, and notifiers for a group of changes are emitted
after the entire block of changes have been applied
Automatic console selection from DT. Console drivers can now use
of_console_check() to see if the device node is specified as a console
device. If so then it gets added as a preferred console. UART devices
get this support automatically when uart_add_one_port() is called.
DT unit tests no longer depend on pre-loaded data in the device tree.
Data is loaded dynamically at the start of unit tests, and then unloaded
again when the tests have completed.
Also contains a few bugfixes for reserved regions and early memory setup.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=8IFz
-----END PGP SIGNATURE-----
Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull device tree updates from Grant Likely:
"The branch contains the following device tree changes the v3.17 merge
window:
Group changes to the device tree. In preparation for adding device
tree overlay support, OF_DYNAMIC is reworked so that a set of device
tree changes can be prepared and applied to the tree all at once.
OF_RECONFIG notifiers see the most significant change here so that
users always get a consistent view of the tree. Notifiers generation
is moved from before a change to after it, and notifiers for a group
of changes are emitted after the entire block of changes have been
applied
Automatic console selection from DT. Console drivers can now use
of_console_check() to see if the device node is specified as a console
device. If so then it gets added as a preferred console. UART
devices get this support automatically when uart_add_one_port() is
called.
DT unit tests no longer depend on pre-loaded data in the device tree.
Data is loaded dynamically at the start of unit tests, and then
unloaded again when the tests have completed.
Also contains a few bugfixes for reserved regions and early memory
setup"
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux: (21 commits)
of: Fixing OF Selftest build error
drivers: of: add automated assignment of reserved regions to client devices
of: Use proper types for checking memory overflow
of: typo fix in __of_prop_dup()
Adding selftest testdata dynamically into live tree
of: Add todo tasklist for Devicetree
of: Transactional DT support.
of: Reorder device tree changes and notifiers
of: Move dynamic node fixups out of powerpc and into common code
of: Make sure attached nodes don't carry along extra children
of: Make devicetree sysfs update functions consistent.
of: Create unlocked versions of node and property add/remove functions
OF: Utility helper functions for dynamic nodes
of: Move CONFIG_OF_DYNAMIC code into a separate file
of: rename of_aliases_mutex to just of_mutex
of/platform: Fix of_platform_device_destroy iteration of devices
of: Migrate of_find_node_by_name() users to for_each_node_by_name()
tty: Update hypervisor tty drivers to use core stdout parsing code.
arm/versatile: Add the uart as the stdout device.
of: Enable console on serial ports specified by /chosen/stdout-path
...
- Fix ARM build.
- Fix boot crash with PVH guests.
- Improve reliability of resume/migration.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQEcBAABAgAGBQJT6y4zAAoJEFxbo/MsZsTRqI4H/3c+TXRjeB5787wkm3Lya1JO
5+DsbbtlM13PT+Oi0Zop7xUYMPya7Xkwix0FvFvJ/q0/NFMf6RDJREtRy7atRkkp
IRKccsGA/OH0ETcmQJOGHErnK51cAjMrm+ilJHIIYd6btEVCuP212G9f8CVGMyIK
r0U6sVUxTJ5TPOLjvv5e8Rz+iTtP+OXvxaf2+rcqAf1QAJJ6S6+ipJZjZemX8OR/
IoUPiee5Ou/ogQekt0f473vJrxX5nP7wLdJ2F7YA/A6F/HQHNbYDgQXf2IXrqFmb
DpkpXxaowZGKXwnwqHUr3pVDdeMpvYJKZDPZmTQq2htrXufHIiY/E3qr9wGjqxk=
=iVy1
-----END PGP SIGNATURE-----
Merge tag 'stable/for-linus-3.17-b-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen bugfixes from David Vrabel:
- fix ARM build
- fix boot crash with PVH guests
- improve reliability of resume/migration
* tag 'stable/for-linus-3.17-b-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: use vmap() to map grant table pages in PVH guests
x86/xen: resume timer irqs early
arm/xen: remove duplicate arch_gnttab_init() function
These syscalls are not used by userspace tools for some time now, and
they have issues when called with invalid arguments. It's not worth
changing signal delivery mechanism as we don't expect any new users for
these syscalls. Let's keep them for backwards compatibility under #ifdef,
disabled by default.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Double exceptions that happen during register window overflow/underflow
are handled in the topmost stack frame, as if it was the only exception
that occured. However unaligned access exception handler is special
because it needs to analyze instruction that caused the exception, but
the userspace instruction that triggered window exception is completely
irrelevant. Unaligned data access is rather normal in the generic
userspace code, but stack pointer manipulation must always be done by
architecture-aware code and thus unaligned stack means a serious problem
anyway.
Use the default unaligned access handler that raises SIGBUS in case
of unaligned access in window overflow/underflow handler.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Remove restoring a6 on some return paths and instead modify and restore
it in a single place, using symbolic name.
Correctly restore a7 from PT_AREG7 in case of illegal a6 value.
Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Update icount when icountlevel is non-zero but not greater than EXCM level
when load/store instruction is successfully emulated. This allows
single-stepping over such instruction in userspace debugger.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
With this change a threaded jump from .Linvalid_instruction_load to
.Linvalid_instruction can be removed and more code may be added to
common load/store exit path.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
fast_unaligned may encounter DTLB miss or SEGFAULT during the store
emulation. Don't update epc1 and lcount until after the store emulation
is complete, so that the faulting store instruction could be replayed.
Remove duplicate code handling zero overhead loops and calculate new
epc1 and lcount in one place.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
fast_unaligned_fixup restores user registers and runs normal exception
handler in the current stack frame. Unaligned load/store is retried
after that.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Enable all memory available on KC705 (1G - 128M) by default. Update memory
node in DTS and also limit usable memory in bootargs in case memmap is
passed from the bootloader.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Use __flush_invalidate_dcache_page_alias with alias set to color of the
page physical address instead of __flush_invalidate_dcache_page: this
works for high memory pages and mapping/unmapping to the TLBTEMP area is
virtually free.
Allow building configurations with aliasing cache and highmem enabled.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Define ARCH_PKMAP_COLORING and provide corresponding macro definitions
on cores with aliasing data cache.
Instead of single last_pkmap_nr maintain an array last_pkmap_nr_arr of
pkmap counters for each page color. Make sure that kmap maps physical
page at virtual address with color matching its physical address.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Map high memory pages at virtual addresses with color that match color
of their physical address. Existing cache alias management mechanisms
may be used with such pages.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Existing clear_user_page and copy_user_page cannot be used with highmem
because they calculate physical page address from its virtual address
and do it incorrectly in case of high memory page mapped with
kmap_atomic. Also kmap is not needed, as most likely userspace mapping
color would be different from the kmapped color.
Provide clear_user_highpage and copy_user_highpage functions that
determine if temporary mapping is needed for the pages. Move most of the
logic of the former clear_user_page and copy_user_page to
xtensa/mm/cache.c only leaving temporary mapping setup, invalidation and
clearing/copying in the xtensa/mm/misc.S. Rename these functions to
clear_page_alias and copy_page_alias.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Current definition of TLBTEMP_BASE_2 is always 32K above the
TLBTEMP_BASE_1, whereas fast_second_level_miss handler for the TLBTEMP
region analyzes virtual address bit (PAGE_SHIFT + DCACHE_ALIAS_ORDER)
to determine TLBTEMP region where the fault happened. The size of the
TLBTEMP region is also checked incorrectly: not 64K, but twice data
cache way size (whicht may as well be less than the instruction cache
way size).
Fix TLBTEMP_BASE_2 to be TLBTEMP_BASE_1 + data cache way size.
Provide TLBTEMP_SIZE that is a greater of doubled data cache way size or
the instruction cache way size, and use it to determine if the second
level TLB miss occured in the TLBTEMP region.
Practical occurence of page faults in the TLBTEMP area is extremely
rare, this code can be tested by deletion of all w[di]tlb instructions
in the tlbtemp_mapping region.
Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
To support aliasing cache both kmap region sizes are multiplied by the
number of data cache colors. After that expansion page tables that cover
kmap regions may become larger than one page. Correctly allocate and
initialize page tables in this case.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
It's much easier to reason about alignment and coloring of regions
located in the fixmap when fixmap index is just a PFN within the fixmap
region. Change fixmap addressing so that index 0 corresponds to
FIXADDR_START instead of the FIXADDR_TOP.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
With SMP and a lot of debug options enabled task_struct::thread gets out
of reach of s32i/l32i instructions with base pointing at task_struct,
breaking build with the following messages:
arch/xtensa/kernel/entry.S: Assembler messages:
arch/xtensa/kernel/entry.S:1002: Error: operand 3 of 'l32i.n' has invalid value '1048'
arch/xtensa/kernel/entry.S:1831: Error: operand 3 of 's32i.n' has invalid value '1040'
arch/xtensa/kernel/entry.S:1832: Error: operand 3 of 's32i.n' has invalid value '1044'
Change base to point to task_struct::thread in such cases.
Don't use a10 in _switch_to to save/restore prev pointer as a2 is not
clobbered.
Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Virtual address is translated to the XCHAL_KSEG_CACHED region in the
dma_free_coherent, but is checked to be in the 0...XCHAL_KSEG_SIZE
range.
Change check for end of the range from 'addr >= X' to 'addr > X - 1' to
handle the case of X == 0.
Replace 'if (C) BUG();' construct with 'BUG_ON(C);'.
Cc: stable@vger.kernel.org
Signed-off-by: Alan Douglas <adouglas@cadence.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This fixes userspace code that builds on other architectures but fails
on xtensa due to references to structures that other architectures don't
refer to. E.g. this fixes the following issue with python-2.7.8:
python-2.7.8/Modules/termios.c:861:25: error: invalid application
of 'sizeof' to incomplete type 'struct serial_multiport_struct'
{"TIOCSERGETMULTI", TIOCSERGETMULTI},
python-2.7.8/Modules/termios.c:870:25: error: invalid application
of 'sizeof' to incomplete type 'struct serial_multiport_struct'
{"TIOCSERSETMULTI", TIOCSERSETMULTI},
python-2.7.8/Modules/termios.c:900:24: error: invalid application
of 'sizeof' to incomplete type 'struct tty_struct'
{"TIOCTTYGSTRUCT", TIOCTTYGSTRUCT},
Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Instead of adding new Kconfig options and Makefile rules for each new
core variant provide XTENSA_VARIANT_CUSTOM variant and record variant
name in the XTENSA_VARIANT_NAME variable. Adding new core variant now
means providing directory structure under arch/xtensa/variant and
specifying correct name in kernel configuration.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Perform a pci_claim_resource() on all valid resources discovered
during the OF device tree scan.
Based almost entirely upon the PCI OF bus probing code which does
the same thing there.
Signed-off-by: David S. Miller <davem@davemloft.net>
It seems that when a PCI Express bridge is not in use and has no devices
behind it, the ranges property is bogus. Specifically the size property
is of the form [0xffffffff:...], and if you add this size to the resource
start address the 64-bit calculation will overflow.
Just check specifically for this size value signature and skip them.
Signed-off-by: David S. Miller <davem@davemloft.net>
Dump the various aspects of the PCI bridge probed at boot time, most
importantly the bridge number ranges, and the ranges property.
This helps diagnose PCI resource issues and other problems by giving
ofpci_debug=1 on the boot command line.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
"Several networking final fixes and tidies for the merge window:
1) Changes during the merge window unintentionally took away the
ability to build bluetooth modular, fix from Geert Uytterhoeven.
2) Several phy_node reference count bug fixes from Uwe Kleine-König.
3) Fix ucc_geth build failures, also from Uwe Kleine-König.
4) Fix klog false positivies when netlink messages go to network
taps, by properly resetting the network header. Fix from Daniel
Borkmann.
5) Sizing estimate of VF netlink messages is too small, from Jiri
Benc.
6) New APM X-Gene SoC ethernet driver, from Iyappan Subramanian.
7) VLAN untagging is erroneously dependent upon whether the VLAN
module is loaded or not, but there are generic dependencies that
matter wrt what can be expected as the SKB enters the stack.
Make the basic untagging generic code, and do it unconditionally.
From Vlad Yasevich.
8) xen-netfront only has so many slots in it's transmit queue so
linearize packets that have too many frags. From Zoltan Kiss.
9) Fix suspend/resume PHY handling in bcmgenet driver, from Florian
Fainelli"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (55 commits)
net: bcmgenet: correctly resume adapter from Wake-on-LAN
net: bcmgenet: update UMAC_CMD only when link is detected
net: bcmgenet: correctly suspend and resume PHY device
net: bcmgenet: request and enable main clock earlier
net: ethernet: myricom: myri10ge: myri10ge.c: Cleaning up missing null-terminate after strncpy call
xen-netfront: Fix handling packets on compound pages with skb_linearize
net: fec: Support phys probed from devicetree and fixed-link
smsc: replace WARN_ON() with WARN_ON_SMP()
xen-netback: Don't deschedule NAPI when carrier off
net: ethernet: qlogic: qlcnic: Remove duplicate object file from Makefile
wan: wanxl: Remove typedefs from struct names
m68k/atari: EtherNEC - ethernet support (ne)
net: ethernet: ti: cpmac.c: Cleaning up missing null-terminate after strncpy call
hdlc: Remove typedefs from struct names
airo_cs: Remove typedef local_info_t
atmel: Remove typedef atmel_priv_ioctl
com20020_cs: Remove typedef com20020_dev_t
ethernet: amd: Remove typedef local_info_t
net: Always untag vlan-tagged traffic on input.
drivers: net: Add APM X-Gene SoC ethernet driver support.
...
Pull Sparc fixes from David Miller:
"Sparc bug fixes, one of which was preventing successful SMP boots with
mainline"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix pcr_ops initialization and usage bugs.
sparc64: Do not disable interrupts in nmi_cpu_busy()
sparc: Hook up seccomp and getrandom system calls.
sparc: fix decimal printf format specifiers prefixed with 0x
Pull x86/apic updates from Thomas Gleixner:
"This is a major overhaul to the x86 apic subsystem consisting of the
following parts:
- Remove obsolete APIC driver abstractions (David Rientjes)
- Use the irqdomain facilities to dynamically allocate IRQs for
IOAPICs. This is a prerequisite to enable IOAPIC hotplug support,
and it also frees up wasted vectors (Jiang Liu)
- Misc fixlets.
Despite the hickup in Ingos previous pull request - caused by the
missing fixup for the suspend/resume issue reported by Borislav - I
strongly recommend that this update finds its way into 3.17. Some
history for you:
This is preparatory work for physical IOAPIC hotplug. The first
attempt to support this was done by Yinghai and I shot it down because
it just added another layer of obscurity and complexity to the already
existing mess without tackling the underlying shortcomings of the
current implementation.
After quite some on- and offlist discussions, I requested that the
design of this functionality must use generic infrastructure, i.e.
irq domains, which provide all the mechanisms to dynamically map linux
interrupt numbers to physical interrupts.
Jiang picked up the idea and did a great job of consolidating the
existing interfaces to manage the x86 (IOAPIC) interrupt system by
utilizing irq domains.
The testing in tip, Linux-next and inside of Intel on various machines
did not unearth any oddities until Borislav exposed it to one of his
oddball machines. The issue was resolved quickly, but unfortunately
the fix fell through the cracks and did not hit the tip tree before
Ingo sent the pull request. Not entirely Ingos fault, I also assumed
that the fix was already merged when Ingo asked me whether he could
send it.
Nevertheless this work has a proper design, has undergone several
rounds of review and the final fallout after applying it to tip and
integrating it into Linux-next has been more than moderate. It's the
ground work not only for IOAPIC hotplug, it will also allow us to move
the lowlevel vector allocation into the irqdomain hierarchy, which
will benefit other architectures as well. Patches are posted already,
but they are on hold for two weeks, see below.
I really appreciate the competence and responsiveness Jiang has shown
in course of this endavour. So I'm sure that any fallout of this will
be addressed in a timely manner.
FYI, I'm vanishing for 2 weeks into my annual kids summer camp kitchen
duty^Wvacation, while you folks are drooling at KS/LinuxCon :) But HPA
will have a look at the hopefully zero fallout until I'm back"
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
x86, irq, PCI: Keep IRQ assignment for PCI devices during suspend/hibernation
x86/apic/vsmp: Make is_vsmp_box() static
x86, apic: Remove enable_apic_mode callback
x86, apic: Remove setup_portio_remap callback
x86, apic: Remove multi_timer_check callback
x86, apic: Replace noop_check_apicid_used
x86, apic: Remove check_apicid_present callback
x86, apic: Remove mps_oem_check callback
x86, apic: Remove smp_callin_clear_local_apic callback
x86, apic: Replace trampoline physical addresses with defaults
x86, apic: Remove x86_32_numa_cpu_node callback
x86: intel-mid: Use the new io_apic interfaces
x86, vsmp: Remove is_vsmp_box() from apic_is_clustered_box()
x86, irq: Clean up irqdomain transition code
x86, irq, devicetree: Release IOAPIC pin when PCI device is disabled
x86, irq, SFI: Release IOAPIC pin when PCI device is disabled
x86, irq, mpparse: Release IOAPIC pin when PCI device is disabled
x86, irq, ACPI: Release IOAPIC pin when PCI device is disabled
x86, irq: Introduce helper functions to release IOAPIC pin
x86, irq: Simplify the way to handle ISA IRQ
...
Geert Uytterhoeven
Marcel Ziswiler
Olof Johansson
Heiko Stuebner
Linus Torvalds
Ingo Molnar
Semen Protsenko
Kuninori Morimoto
Michal Simek
Daniel Drake
Will Deacon
Ganapatrao Kulkarni
Leif Lindholm
Mark Brown
Ard Biesheuvel
Aaro Koskinen
Markos Chandras
Huacai Chen
Guenter Roeck
Davidlohr Bueso
Fabio Estevam
Paolo Bonzini
Nadav Amit
Alexey Kardashevskiy
Fugang Duan
Lars Persson
Manuel Lauss
Hauke Mehrtens
Wei Yongjun
Sergey Ryazanov
Chris Zankel
Ralf Baechle
Yang Wei
Tony Luck
Lothar Waßmann
Anson Huang
Silvio Fricke
Bill Pringlemeir
Shawn Guo
Arnd Bergmann
Len Brown
Stefan Bader
Max Filippov
Miklos Szeredi
Alan Douglas
David S. Miller