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Pull ARM fixes from Russell King:
"Another round of ARM fixes, which include:
- Fixing a problem with LPAE mapping sections
- Reporting of some hwcaps on Krait CPUs
- Avoiding repetitive warnings in the breakpoint code
- Fixing a build error noticed on Dove platforms with PJ4 CPUs
- Fix masking of level 2 cache revision.
- Fixing timer-based udelay()
- A larger fix for an erratum causing people major grief with Cortex
A15 CPUs"
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7690/1: mm: fix CONFIG_LPAE typos
ARM: 7689/1: add unwind annotations to ftrace asm
ARM: 7685/1: delay: use private ticks_per_jiffy field for timer-based delay ops
ARM: 7684/1: errata: Workaround for Cortex-A15 erratum 798181 (TLBI/DSB operations)
ARM: 7682/1: cache-l2x0: fix masking of RTL revision numbering and set_debug init
ARM: iWMMXt: always enable iWMMXt support with PJ4 CPUs
ARM: 7681/1: hw_breakpoint: use warn_once to avoid spam from reset_ctrl_regs()
ARM: 7678/1: Work around faulty ISAR0 register in some Krait CPUs
ARM: 7680/1: Detect support for SDIV/UDIV from ISAR0 register
ARM: 7679/1: Clear IDIVT hwcap if CONFIG_ARM_THUMB=n
ARM: 7677/1: LPAE: Fix mapping in alloc_init_section for unaligned addresses
ARM: KVM: vgic: take distributor lock on sync_hwstate path
ARM: KVM: vgic: force EOIed LRs to the empty state
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"Just a bunch of bugfixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/mm: provide emtpy check_pgt_cache() function
s390/uaccess: fix page table walk
s390/3270: fix minor_start issue
s390/uaccess: fix clear_user_pt()
s390/scm_blk: fix error return code in scm_blk_init()
s390/scm_block: fix printk format string
drivers/Kconfig: add several missing GENERIC_HARDIRQS dependencies
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CONFIG_LPAE doesn't exist: the correct option is CONFIG_ARM_LPAE, so fix
up the two typos under arch/arm/.
The fix to head.S is slightly scary, but this is just for setting up
an early io-mapping for the serial port when running on a big-endian,
LPAE system. Since these systems don't exist in the wild (at least, I
have no access to one outside of kvmtool, which doesn't provide a serial
port suitable for earlyprintk), then we can revisit the code later if it
causes any problems.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Add unwind annotations to the ftrace assembly code so that the function
tracer's stacktracing options (func_stack_trace, etc.) work when
CONFIG_ARM_UNWIND is enabled.
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Commit 70264367a243 ("ARM: 7653/2: do not scale loops_per_jiffy when
using a constant delay clock") fixed a problem with our timer-based
delay loop, where loops_per_jiffy is scaled by cpufreq yet used directly
by the timer delay ops.
This patch fixes the problem in a more elegant way by keeping a private
ticks_per_jiffy field in the delay ops, independent of loops_per_jiffy
and therefore not subject to scaling. The loop-based delay continues to
use loops_per_jiffy directly, as it should.
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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operations)
On Cortex-A15 (r0p0..r3p2) the TLBI/DSB are not adequately shooting down
all use of the old entries. This patch implements the erratum workaround
which consists of:
1. Dummy TLBIMVAIS and DSB on the CPU doing the TLBI operation.
2. Send IPI to the CPUs that are running the same mm (and ASID) as the
one being invalidated (or all the online CPUs for global pages).
3. CPU receiving the IPI executes a DMB and CLREX (part of the exception
return code already).
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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init
Commit b8db6b8 (ARM: 7547/4: cache-l2x0: add support for Aurora L2 cache
ctrl) moved the masking of the part ID which caused the RTL version to be
lost. Commit 6248d06 (ARM: 7545/1: cache-l2x0: make outer_cache_fns a
field of l2x0_of_data) changed how .set_debug is initialized. Both commits
break commit 74ddcdb (ARM: 7608/1: l2x0: Only set .set_debug
on PL310 r3p0 and earlier) which uses the RTL version to conditionally set
.set_debug function pointer. Commit b8db6b8 also caused the printed cache
ID to be missing the version information.
Fix this by reverting how the part number is masked so the RTL version
info is maintained. The cache-id-part DT property does not set the RTL
bits so masking them should have no effect. Also, re-arrange the order
of the function pointer init so the .set_debug function can be overridden.
Reported-by: Paolo Pisati <paolo.pisati@canonical.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Yehuda Yitschak <yehuday@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Jason Cooper reports these build errors:
arch/arm/kernel/built-in.o: In function `iwmmxt_do':
/.../arch/arm/kernel/pj4-cp0.c:36: undefined reference to `iwmmxt_task_release'
/.../arch/arm/kernel/pj4-cp0.c:40: undefined reference to `iwmmxt_task_switch'
make: *** [vmlinux] Error 1
This is caused because the PJ4 code explicitly references the iWMMXt
code, but doesn't require it to be built. Fix this by ensuring that
iWMMXt is always enabled with PJ4.
Reported-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Pull MIPS fixes from Ralf Baechle:
"A collection of fixes pretty much across the MIPS code. Even the
change to include/linux/signal.h by David Howells' 2a1486981c13 ("Fix
breakage in MIPS siginfo handling") should be considered MIPS-specific
as it touches an ifdefed segment that is only relevant to MIPS and
which unfortunately can't be made to go away entirely."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
Fix breakage in MIPS siginfo handling
Revert "MIPS: BCM63XX: Call board_register_device from device_initcall()"
MIPS: BCM63XX: Make nvram checksum failure non fatal
MIPS: Fix code generation for non-DSP capable CPUs
MIPS: Fix inconsistent formatting inside /proc/cpuinfo
MIPS: SEAD3: Enable LL/SC.
MIPS: Get rid of CONFIG_CPU_HAS_LLSC again
MIPS: Add dependencies for HAVE_ARCH_TRANSPARENT_HUGEPAGE
MIPS: VR4133: Fix probe for LL/SC.
MIPS: Fix logic errors in bitops.c
MIPS: Use CONFIG_CPU_MIPSR2 in csum_partial.S
MIPS: compat: Return same error ENOSYS as native for invalid operation.
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Pull ARM SoC bug fixes from Arnd Bergmann:
"After a quiet set of fixes for 3.9-rc4, a lot of people woke up and
sent urgent fixes for 3.9. I pushed back on a number of them that got
deferred to 3.10, but these are the ones that seemed important.
Regression in 3.9:
- Multiple regressions in OMAP2+ clock cleanup
- SH-Mobile frame buffer bug fix that merged here because of
maintainer MIA
- ux500 prcmu changes broke DT booting
- MMCI duplicated regulator setup on ux500
- New ux500 clock driver broke ethernet on snowball
- Local interrupt driver for mvebu broke ethernet
- MVEBU GPIO driver did not get set up right on Orion DT
- incorrect interrupt number on Orion crypto for DT
Long-standing bugs, including candidates for stable:
- Kirkwood MMC needs to disable invalid card detect pins
- MV SDIO pinmux was wrong on Mirabox
- GoFlex Net board file needs to set NAND chip delay
- MSM timer restart race
- ep93xx early debug code broke in 3.7
- i.MX CPU hotplug race
- Incorrect clock setup for OMAP1 USB
- Workaround for bad clock setup by some old OMAP4 boot loaders
- Static I/O mappings on cns3xxx since 3.2"
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: cns3xxx: fix mapping of private memory region
arm: mvebu: Fix pinctrl for Armada 370 Mirabox SDIO port.
arm: orion5x: correct IRQ used in dtsi for mv_cesa
arm: orion5x: fix orion5x.dtsi gpio parameters
ARM: Kirkwood: fix unused mvsdio gpio pins
arm: mvebu: Use local interrupt only for the timer 0
ARM: kirkwood: Fix chip-delay for GoFlex Net
ARM: ux500: Enable the clock controlling Ethernet on Snowball
ARM: ux500: Stop passing ios_handler() as an MMCI power controlling call-back
ARM: ux500: Apply the TCPM and TCDM locations and sizes to dbx5x0 DT
fbdev: sh_mobile_lcdc: fixup B side hsync adjust settings
ARM: OMAP: clocks: Delay clk inits atleast until slab is initialized
ARM: imx: fix sync issue between imx_cpu_die and imx_cpu_kill
ARM: msm: Stop counting before reprogramming clockevent
ARM: ep93xx: Fix wait for UART FIFO to be empty
ARM: OMAP4: PM: fix PM regression introduced by recent clock cleanup
ARM: OMAP3: hwmod data: keep MIDLEMODE in force-standby for musb
ARM: OMAP4: clock data: lock USB DPLL on boot
ARM: OMAP1: fix USB host on 1710
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git://git.infradead.org/users/cbou/linux-cns3xxx into fixes
From Anton Vorontsov <anton@enomsg.org>:
This tag includes Mac Lin's work to revive CNS3xxx booting:
"Since commit 0536bdf33faf (ARM: move iotable mappings within the vmalloc
region), [...] the pre-defined iotable mappings is not in the vmalloc
region. [...] move the iotable mappings into the vmalloc region, and
merge the MPCore private memory region (containing the SCU, the GIC and
the TWD) as a single region."
Plus there is a small cosmetic fix, also from Mac Lin.
* tag 'v3.9-rc1_cns3xxx_fixes' of git://git.infradead.org/users/cbou/linux-cns3xxx:
ARM: cns3xxx: fix mapping of private memory region
[arnd: dropped the cosmetic fix from the merge as it is not needed for 3.9]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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All architectures need to provide a check_pgt_cache() function. The s390 one
got lost somewhere.
So reintroduce it to prevent future compile errors e.g. if Thomas Gleixner's
idle loop rework patches get merged.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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When translating user space addresses to kernel addresses the follow_table()
function had two bugs:
- PROT_NONE mappings could be read accessed via the kernel mapping. That is
e.g. putting a filename into a user page, then protecting the page with
PROT_NONE and afterwards issuing the "open" syscall with a pointer to
the filename would incorrectly succeed.
- when walking the page tables it used the pgd/pud/pmd/pte primitives which
with dynamic page tables give no indication which real level of page tables
is being walked (region2, region3, segment or page table). So in case of an
exception the translation exception code passed to __handle_fault() is not
necessarily correct.
This is not really an issue since __handle_fault() doesn't evaluate the code.
Only in case of e.g. a SIGBUS this code gets passed to user space. If user
space can do something sane with the value is a different question though.
To fix these issues don't use any Linux primitives. Only walk the page tables
like the hardware would do it, however we leave quite some checks away since
we know that we only have full size page tables and each index is within bounds.
In theory this should fix all issues...
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile fix from Chris Metcalf:
"This change allows newer Tilera boot tools to work correctly with
current (and stable) kernels by using the right filename to get the
initramfs from the Tilera hypervisor filesystem."
* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
tile: expect new initramfs name from hypervisor file system
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Since commit 0536bdf33faf (ARM: move iotable mappings within the vmalloc
region), the Cavium CNS3xxx cannot boot anymore.
This is caused by the pre-defined iotable mappings is not in the vmalloc
region. This patch move the iotable mappings into the vmalloc region, and
merge the MPCore private memory region (containing the SCU, the GIC and
the TWD) as a single region.
Signed-off-by: Mac Lin <mkl0301@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
Cc: stable@vger.kernel.org [v3.3+]
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The current Tilera boot infrastructure now provides the initramfs
to Linux as a Tilera-hypervisor file named "initramfs", rather than
"initramfs.cpio.gz", as before. (This makes it reasonable to use
other compression techniques than gzip on the file without having to
worry about the name causing confusion.) Adapt to use the new name,
but also fall back to checking for the old name.
Cc'ing to stable so that older kernels will remain compatible with
newer Tilera boot infrastructure.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: stable@vger.kernel.org
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Commit 3e7fc708eb41 ("ia64 idle: delete pm_idle") in 3.9-rc1 didn't
finish the job, leaving an un-initialized reference to (*idle)().
[ Haven't seen a crash from this - but seems like we are just being
lucky that "idle" is zero so it does get initialized before we jump to
randomland - Len ]
Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull arc architecture fixes from Vineet Gupta:
"This includes fix for a serious bug in DMA mapping API, make
allyesconfig wreckage, removal of bogus email-list placeholder in
MAINTAINERS, a typo in ptrace helper code and last remaining changes
for syscall ABI v3 which we are finally starting to transition-to
internally.
The request is late than I intended to - but I was held up with
debugging a timer link list corruption, for which a proposed fix to
generic timer code was sent out to lkml/tglx earlier today."
* 'for-curr' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: Fix the typo in event identifier flags used by ptrace
arc: fix dma_address assignment during dma_map_sg()
ARC: Remove SET_PERSONALITY (tracks cross-arch change)
ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI
ARC: ABIv3: Print the correct ABI ver
ARC: make allyesconfig build breakages
ARC: MAINTAINERS update for ARC
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git://git.infradead.org/users/jcooper/linux into fixes
From Jason Cooper <jason@lakedaemon.net>:
mvebu fixes for v3.9 (round 2)
- mvebu
- interrupt fix
- DT pinctrl definition for sdio
- kirkwood
- chip-delay for GoFlex Net (fix reading nand)
- set mvsdio unused pins to invalid value for legacy boards (0 is valid)
- orion5x
- fix typo in gpio parameters
- use correct irq in dtsi
* tag 'mvebu_fixes_for_v3.9_round2' of git://git.infradead.org/users/jcooper/linux:
arm: mvebu: Fix pinctrl for Armada 370 Mirabox SDIO port.
arm: orion5x: correct IRQ used in dtsi for mv_cesa
arm: orion5x: fix orion5x.dtsi gpio parameters
ARM: Kirkwood: fix unused mvsdio gpio pins
arm: mvebu: Use local interrupt only for the timer 0
ARM: kirkwood: Fix chip-delay for GoFlex Net
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael J Wysocki:
- Fix for a recent cpufreq regression related to acpi-cpufreq and
suspend/resume from Viresh Kumar.
- cpufreq stats reference counting fix from Viresh Kumar.
- intel_pstate driver fixes from Dirk Brandewie and Konrad Rzeszutek
Wilk.
- New ACPI suspend blacklist entry for Sony Vaio VGN-FW21M from Fabio
Valentini.
- ACPI Platform Error Interface (APEI) fix from Chen Gong.
- PCI root bridge hotplug locking fix from Yinghai Lu.
* tag 'pm+acpi-3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI / ACPI: hold acpi_scan_lock during root bus hotplug
ACPI / APEI: fix error status check condition for CPER
ACPI / PM: fix suspend and resume on Sony Vaio VGN-FW21M
cpufreq: acpi-cpufreq: Don't set policy->related_cpus from .init()
cpufreq: stats: do cpufreq_cpu_put() corresponding to cpufreq_cpu_get()
intel-pstate: Use #defines instead of hard-coded values.
cpufreq / intel_pstate: Fix calculation of current frequency
cpufreq / intel_pstate: Add function to check that all MSRs are valid
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git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
Pull arm64 fix from Catalin Marinas:
"Fix IS_ENABLED() usage typo (missing CONFIG_ prefix)."
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
ARM64: early_printk: Fix check for CONFIG_ARM64_64K_PAGES
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The previous configuration used the wrong "clk" pin. Without this
change mv_sdio worked because the bootloader would set the pin up, but
with a bootloader that does not set the pin, mv_sdio fails to detect any
card.
I have tested this change using a mwifiex_sdio wireless network adapter
over the SDIO interface.
Signed-off-by: Ryan Press <ryan@presslab.us>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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The crypto functionality in the orion5x dtsi uses the Ethernet IRQ and
so things do not work and there is much grumbling at boot time.
The IRQ for the crypto should be 28, and not 22, and that is what this
patch corrects.
Signed-off-by: Alexander Clouter <alex@digriz.org.uk>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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orion5x.dtsi is missing the gpio alias as well as including a typo
('ngpio' instead of 'ngpios') that prevented the orion-gpio driver
from loading. Also missing were the interrupt-controller properties.
This patches resolves those glitches.
Signed-off-by: Alexander Clouter <alex@digriz.org.uk>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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mvsdio_platform_data allows to pass card detect and write protect gpio
numbers to the driver. Some kirkwood boards don't use both pins as they
are not connected, and don't set the corresponding value in platform_data.
This will leave the unset values in platform_data initialized as 0, which
is in fact a valid gpio pin. mvsdio will grab that pin and configure it as
gpio, which in turn breaks nand controller as mpp0 also carries nand_io2.
This patch fixes the above by initializing unused gpio functions in the
platform_data with an invalid (-1) value.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reported-by: Soeren Moch <smoch@web.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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The commit 3a6f08a37 "arm: mvebu: Add support for local interrupt",
managed the 28th first interrupts as local interrupt to match the
hardware specification. Among these interrupts there are the Gigabits
Ethernet ones used by the mvneta driver. Unfortunately the state of
the percpu_irq API prevents the driver to use it.
Indeed the interrupts have to be freed when the .stop() function is
called. As the free_percpu_irq() function don't disable the interrupt
line, we have to do it on each CPU before calling this. The function
disable_percpu_irq() only disable the percpu on the current CPU and
there is no function which allows to disable a percpu irq on a given
CPU. Waiting for the extension of the percpu_irq API, this fix allows
to use again the mvneta driver.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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This fixes "Too few good blocks within range" issues on GoFlex Net by setting
chip-delay to 40.
The basic problem was discussed at http://forum.doozan.com/read.php?2,7451
Signed-off-by: Eric Hutter <hutter.eric@gmail.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Cc: <stable@vger.kernel.org> # v3.6.x
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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git://github.com/RyanMallon/linux-ep93xx into fixes
From Ryan Mallon <rmallon@gmail.com>:
It is a regression fix for some ep93xx boards which are failing to boot
on current mainline. The patch has been tested in next over the last
few days.
* tag 'ep93xx-fixes-for-3.9-rc5' of git://github.com/RyanMallon/linux-ep93xx:
ARM: ep93xx: Fix wait for UART FIFO to be empty
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo <shawn.guo@linaro.org>:
The imx fixes for 3.9, take 4:
Running suspend/resume without no_console_suspend setting on kernel
cmdline will likely makes system hang. It causesd by the sync issue
between imx_cpu_die() and imx_cpu_kill() call. Fix the issue by
synchronizing the calls using cpu jumping argument register which is
free to use in kernel.
* tag 'imx-fixes-3.9-4' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: imx: fix sync issue between imx_cpu_die and imx_cpu_kill
ARM: imx: add dependency check for DEBUG_IMX_UART_PORT
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/sfr/next-fixes
Pull powerpc build fixes from Stephen Rothwell:
"Just a couple of build fixes for powerpc all{mod,yes}config.
Submitted by me since BenH is on vacation."
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/next-fixes:
powerpc: define the conditions where the ePAPR idle hcall can be supported
powerpc: make additional room in exception vector area
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into fixes
From Linus Walleij <linus.walleij@stericsson.com>:
Fixes boot regressions on Device Tree:
- Get TCPM and TCDM locations from the device tree
- Skip passing the ios_handler for the MMCI
- Enable the ethernet clock for Snowball
* tag 'ux500-fixes-for-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: ux500: Enable the clock controlling Ethernet on Snowball
ARM: ux500: Stop passing ios_handler() as an MMCI power controlling call-back
ARM: ux500: Apply the TCPM and TCDM locations and sizes to dbx5x0 DT
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
"This is mostly just the last stragglers of the regression bugs that
this merge window had. There are also two bug-fixes: one that adds an
extra layer of security, and a regression fix for a change that was
added in v3.7 (the v1 was faulty, the v2 works).
- Regression fixes for C-and-P states not being parsed properly.
- Fix possible security issue with guests triggering DoS via
non-assigned MSI-Xs.
- Fix regression (introduced in v3.7) with raising an event (v2).
- Fix hastily introduced band-aid during c0 for the CR3 blowup."
* tag 'stable/for-linus-3.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/events: avoid race with raising an event in unmask_evtchn()
xen/mmu: Move the setting of pvops.write_cr3 to later phase in bootup.
xen/acpi-stub: Disable it b/c the acpi_processor_add is no longer called.
xen-pciback: notify hypervisor about devices intended to be assigned to guests
xen/acpi-processor: Don't dereference struct acpi_processor on all CPUs.
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This fixes a regression introduced by common clk enablement.
On some u8500 based boards, the FMSC clock which is usually used
for flash, is wired up to the SMSC911x Ethernet driver. However,
the SMSC911x doesn't have common clk support yet, rendering it
unusable. Prior to the introduction of common clk the FMSC clock
was default on; however, common clk disables all clocks by default
and insists drivers take responsibility to enable theirs.
This fix enables the FMSC clock on Snowball, subsequently turning
on the SMSC911x Ethernet chip. It will be removed when the driver
is compatible with common clk.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This fixes a regression introduced during the v3.9 merge window.
Now MMCI on/off functionality is using the regulator framework
from the MMCI driver, if we provide the ios_handler call-back we
essentially duplicate functionality, which causes a large mess
and lots of booting issues.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This fixes a regression introduced by commit:
05ec260 mfd:db8500-prcmu: update resource passing
All DBx5x0 based SoCs have access to two Tightly Coupled Memory
(TCM) locations based on the PRCMU itself. One area from program
memory (TCPM) and one for data memory (TCDM). The PRCMU needs to
know where these are in order to function correctly. However,
these are currently passed though platform device resources, which
can only be obtained if Device Tree booting isn't in use. Thus we
must also support them in DT by supplying them through the PRCMU
node.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren <tony@atomide.com>:
A clock regression fix that happened with the common clock
conversion, and few USB regression fixes.
* tag 'omap-for-v3.9-rc3/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: clocks: Delay clk inits atleast until slab is initialized
ARM: OMAP4: PM: fix PM regression introduced by recent clock cleanup
ARM: OMAP3: hwmod data: keep MIDLEMODE in force-standby for musb
ARM: OMAP4: clock data: lock USB DPLL on boot
ARM: OMAP1: fix USB host on 1710
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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We move the setting of write_cr3 from the early bootup variant
(see git commit 0cc9129d75ef8993702d97ab0e49542c15ac6ab9
"x86-64, xen, mmu: Provide an early version of write_cr3.")
to a more appropiate location.
This new location sets all of the other non-early variants
of pvops calls - and most importantly is before the
alternative_asm mechanism kicks in.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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clk inits on OMAP happen quite early, even before slab is available.
The dependency comes from the fact that the timer init code starts to
use clocks and hwmod and we need clocks to be initialized by then.
There are various problems doing clk inits this early, one is,
not being able to do dynamic clk registrations and hence the
dependency on clk-private.h. The other is, inability to debug
early kernel crashes without enabling DEBUG_LL and earlyprintk.
Doing early clk init also exposed another instance of a kernel
panic due to a BUG() when CONFIG_DEBUG_SLAB is enabled.
[ 0.000000] Kernel BUG at c01174f8 [verbose debug info unavailable]
[ 0.000000] Internal error: Oops - BUG: 0 [#1] SMP ARM
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 Not tainted (3.9.0-rc1-12179-g72d48f9 #6)
[ 0.000000] PC is at __kmalloc+0x1d4/0x248
[ 0.000000] LR is at __clk_init+0x2e0/0x364
[ 0.000000] pc : [<c01174f8>] lr : [<c0441f54>] psr: 600001d3
[ 0.000000] sp : c076ff28 ip : c065cefc fp : c0441f54
[ 0.000000] r10: 0000001c r9 : 000080d0 r8 : c076ffd4
[ 0.000000] r7 : c074b578 r6 : c0794d88 r5 : 00000040 r4 : 00000000
[ 0.000000] r3 : 00000000 r2 : c07cac70 r1 : 000080d0 r0 : 0000001c
[ 0.000000] Flags: nZCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel
[ 0.000000] Control: 10c53c7d Table: 8000404a DAC: 00000017
[ 0.000000] Process swapper (pid: 0, stack limit = 0xc076e240)
[ 0.000000] Stack: (0xc076ff28 to 0xc0770000)
[ 0.000000] ff20: 22222222 c0794ec8 c06546e8 00000000 00000040 c0794d88
[ 0.000000] ff40: c074b578 c076ffd4 c07951c8 c076e000 00000000 c0441f54 c074b578 c076ffd4
[ 0.000000] ff60: c0793828 00000040 c0794d88 c074b578 c076ffd4 c0776900 c076e000 c07272ac
[ 0.000000] ff80: 2f800000 c074c968 c07f93d0 c0719780 c076ffa0 c076ff98 00000000 00000000
[ 0.000000] ffa0: 00000000 00000000 00000000 00000001 c074cd6c c077b1ec 8000406a c0715724
[ 0.000000] ffc0: 00000000 00000000 00000000 00000000 00000000 c074c968 10c53c7d c0776974
[ 0.000000] ffe0: c074cd6c c077b1ec 8000406a 411fc092 00000000 80008074 00000000 00000000
[ 0.000000] [<c01174f8>] (__kmalloc+0x1d4/0x248) from [<c0441f54>] (__clk_init+0x2e0/0x364)
[ 0.000000] [<c0441f54>] (__clk_init+0x2e0/0x364) from [<c07272ac>] (omap4xxx_clk_init+0xbc/0x140)
[ 0.000000] [<c07272ac>] (omap4xxx_clk_init+0xbc/0x140) from [<c0719780>] (setup_arch+0x15c/0x284)
[ 0.000000] [<c0719780>] (setup_arch+0x15c/0x284) from [<c0715724>] (start_kernel+0x7c/0x334)
[ 0.000000] [<c0715724>] (start_kernel+0x7c/0x334) from [<80008074>] (0x80008074)
[ 0.000000] Code: e5883004 e1a00006 e28dd00c e8bd8ff0 (e7f001f2)
[ 0.000000] ---[ end trace 1b75b31a2719ed1c ]---
[ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
It was a know issue, that slab allocations would fail when common
clock core tries to cache parent pointers for mux clocks on OMAP,
and hence a patch 'clk: Allow late cache allocation for clk->parents,
commit 7975059d' was added to work this problem around.
A BUG() within kmalloc() with CONFIG_DEBUG_SLAB enabled was completely
overlooked causing this regression.
More details on the issue reported can be found here,
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg85932.html
With all these issues around clk inits happening way too early, it
makes sense to at least move them to a point where dynamic memory
allocations are possible. So move them to a point just before the
timer code starts using clocks and hwmod.
This should at least pave way for clk inits on OMAP moving to dynamic
clock registrations instead of using the static macros defined in
clk-private.h.
The issue with kernel panic while CONFIG_DEBUG_SLAB is enabled
was reported by Piotr Haber and Tony Lindgren and this patch
fixes the reported issue as well.
Reported-by: Piotr Haber <phaber@broadcom.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Paul Walmsley <paul@pwsan.com>
Cc: stable@vger.kernel.org # v3.8
Signed-off-by: Tony Lindgren <tony@atomide.com>
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There is a sync issue with hotplug operation. It's possible that when
imx_cpu_kill gets running on primary core, the imx_cpu_die execution
on the core which is to be killed hasn't been finished yet. The problem
will very likely be hit when running suspend without no_console_suspend
setting on kernel cmdline.
It uses cpu jumping argument register to sync imx_cpu_die and
imx_cpu_kill. The register will be set in imx_cpu_die and imx_cpu_kill
will wait for the register being cleared to actually kill the cpu.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: <stable@vger.kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into fixes
From David Brown <davidb@codeaurora.org>:
This fix is intended for v3.9. It fixes a timer bug on MSM targets
that cause system hangs.
* tag 'msm-fix-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
ARM: msm: Stop counting before reprogramming clockevent
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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For 32-bit, CONFIG_EPAPR_PARAVIRT pulls in both epapr_paravirt.c
and epapr_hcalls.c which contains the 32-bit paravirt idle loop.
For 64-bit, the paravirt idle loop is in idle_book3e.S and that
source file is included only if CONFIG_PPC_BOOK3E_64 defined.
This patch makes that dependency for 64-bit explicit.
Fixes these build errors:
arch/powerpc/kernel/built-in.o: In function `restore_pblist_ptr':
ftrace.c:(.toc+0xdc0): undefined reference to `epapr_ev_idle_start'
ftrace.c:(.toc+0xdd0): undefined reference to `epapr_ev_idle'
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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The 'CONFIG_' prefix is not implicit in IS_ENABLED().
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Pull ARM SoC bug fixes from Arnd Bergmann:
"Four patches for arm-soc this week:
- Kevin Hilman is no longer reachable under his previous email
address. He submitted the patch earlier, but nobody felt
responsible to pick it up.
- One Tegra fix for an incorect register address in device tree.
- IMX multiplatform support exposes a configuration option that leads
to unbootable kernels on all other machines and that needs to
depend on that platform.
- A nontrivial bug fix for the setup of the mxs video output."
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
MAINTAINERS: update email address for Kevin Hilman
ARM: tegra: fix register address of slink controller
ARM: imx: add dependency check for DEBUG_IMX_UART_PORT
ARM: video: mxs: Fix mxsfb misconfiguring VDCTRL0
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They are defined in coreboot (MSR_PLATFORM) and the other
one is already defined in msr-index.h.
Let's use those.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The FWNMI region is fixed at 0x7000 and the vector are now overflowing
that with allmodconfig. Fix that by moving slb_miss_realmode code out
of that region as it doesn't need to be that close to the call sites
(it is a _GLOBAL function)
Fixes this build error:
arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:1304: Error: attempt to move .org backwards
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
"A collection of minor fixes, more EFI variables paranoia
(anti-bricking) plus the ability to disable the pstore either as a
runtime default or completely, due to bricking concerns."
* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efivars: Fix check for CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE
x86, microcode_intel_early: Mark apply_microcode_early() as cpuinit
efivars: Handle duplicate names from get_next_variable()
efivars: explicitly calculate length of VariableName
efivars: Add module parameter to disable use as a pstore backend
efivars: Allow disabling use as a pstore backend
x86-32, microcode_intel_early: Fix crash with CONFIG_DEBUG_VIRTUAL
x86-64: Fix the failure case in copy_user_handle_tail()
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Pull md fixes from NeilBrown:
"A few bugfixes for md
- recent regressions in raid5
- recent regressions in dmraid
- a few instances of CONFIG_MULTICORE_RAID456 linger
Several tagged for -stable"
* tag 'md-3.9-fixes' of git://neil.brown.name/md:
md: remove CONFIG_MULTICORE_RAID456 entirely
md/raid5: ensure sync and DISCARD don't happen at the same time.
MD: Prevent sysfs operations on uninitialized kobjects
MD RAID5: Avoid accessing gendisk or queue structs when not available
md/raid5: schedule_construction should abort if nothing to do.
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Fix typo on register address of slink3 controller where register
address is wrongly set as 0x7000d480 but it is 0x7000d800.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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If the clockevent is forcibly reprogrammed to have a different
match value we mistakenly assume the timer is not ticking and
program a new match value while the timer is running. Although we
clear the timer before programming a new match, it's better to
stop the timer before clearing it so that we're sure the proper
amount of ticks are counted. Failure to do so can lead to missed
ticks and system hangs.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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CPU debug features like hardware break, watchpoints can be used only
when the debug mode is enabled and available. Unfortunately on OMAP4
based devices, after a CPU power cycle, the debug feature gets disabled
which leads to a flood of messages coming from reset_ctrl_regs() which
gets called on every CPU_PM_EXIT with CPUidle enabled.
So make use of warn_once() so that system is usable.
Thanks to Will for pointers and Lokesh for the analysis of the issue.
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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