This patch is an arm64 version of ce73ec6db4 ("powerpc/vdso: Remove
redundant locking in update_vsyscall_tz()").
Timezone data is not protected, so the sequence counter is not required
to ensure consistency. Furthermore, having multiple paths updating the
counter leads to a race between update_vsyscall and update_vsyscall_tz,
so remove the timezone sequence counting from both the kernel and the
vdso.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Pull ARM fixes from Russell King.
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7616/1: cache-l2x0: aurora: Use writel_relaxed instead of writel
ARM: 7615/1: cache-l2x0: aurora: Invalidate during clean operation with WT enable
ARM: 7614/1: mm: fix wrong branch from Cortex-A9 to PJ4b
ARM: 7612/1: imx: Do not select some errata that depends on !ARCH_MULTIPLATFORM
ARM: 7611/1: VIC: fix bug in VIC irqdomain code
ARM: 7610/1: versatile: bump IRQ numbers
ARM: 7609/1: disable errata work-arounds which access secure registers
ARM: 7608/1: l2x0: Only set .set_debug on PL310 r3p0 and earlier
People are back from the holiday breaks, and it shows. Here are a bunch of
fixes for a number of platforms:
- A couple of small fixes for Nomadik
- A larger set of changes for kirkwood/mvebu
- uart driver selection, dt clocks, gpio-poweroff fixups,
a few __init annotation fixes and some error handling improvement
in their xor dma driver.
- i.MX had a couple of minor fixes (and a critical one for flexcan2
clock setup)
- MXS has a small board fix and a framebuffer bugfix
- A set of fixes for Samsung Exynos, fixing default bootargs and some
Exynos5440 clock issues
- A set of OMAP changes including PM fixes and a few sparse warning
fixups
All in all a bit more positive code delta than we'd ideally want to see
here, mostly from the OMAP PM changes, but nothing overly crazy.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"People are back from the holiday breaks, and it shows. Here are a
bunch of fixes for a number of platforms:
- A couple of small fixes for Nomadik
- A larger set of changes for kirkwood/mvebu
- uart driver selection, dt clocks, gpio-poweroff fixups, a few
__init annotation fixes and some error handling improvement in
their xor dma driver.
- i.MX had a couple of minor fixes (and a critical one for flexcan2
clock setup)
- MXS has a small board fix and a framebuffer bugfix
- A set of fixes for Samsung Exynos, fixing default bootargs and some
Exynos5440 clock issues
- A set of OMAP changes including PM fixes and a few sparse warning
fixups
All in all a bit more positive code delta than we'd ideally want to
see here, mostly from the OMAP PM changes, but nothing overly crazy."
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (44 commits)
ARM: clps711x: Fix bad merge of clockevents setup
ARM: highbank: save and restore L2 cache and GIC on suspend
ARM: highbank: add a power request clear
ARM: highbank: fix secondary boot and hotplug
ARM: highbank: fix typos with hignbank in power request functions
ARM: dts: fix highbank cpu mpidr values
ARM: dts: add device_type prop to cpu nodes on Calxeda platforms
ARM: mx5: Fix MX53 flexcan2 clock
ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array
pinctrl: mvebu: make pdma clock on dove mandatory
ARM: Dove: Add pinctrl clock to DT
dma: mv_xor: fix error handling for clocks
dma: mv_xor: fix error handling of mv_xor_channel_add()
arm: mvebu: Add missing ; for cpu node.
arm: mvebu: Armada XP MV78230 has only three Ethernet interfaces
arm: mvebu: Armada XP MV78230 has two cores, not one
clk: mvebu: Remove inappropriate __init tagging
ARM: Kirkwood: Use fixed-regulator instead of board gpio call
ARM: Kirkwood: Fix missing sdio clock
ARM: Kirkwood: Switch TWSI1 of 88f6282 to DT clock providers
...
on omap2 registers that causes issues trying to use common PM code.
Also fix few incorrect registers, and an issue for omap1 USB, and
few sparse fixes for issues that sneaked in with all the clean-up.
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Merge tag 'omap-for-v3.8-rc2/fixes-signed-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
The biggest change is a fix to deal with different power state
on omap2 registers that causes issues trying to use common PM code.
Also fix few incorrect registers, and an issue for omap1 USB, and
few sparse fixes for issues that sneaked in with all the clean-up.
* tag 'omap-for-v3.8-rc2/fixes-signed-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array
ARM: OMAP1: fix USB configuration use-after-release
ARM: OMAP2/3: PRM: fix bogus OMAP2xxx powerstate return values
ARM: OMAP3: clock data: Add missing enable/disable for EMU clock
ARM: OMAP4: PRM: Correct wrong instance usage for reading reset sources
ARM: OMAP4: PRM: fix RSTTIME and RSTST offsets
ARM: OMAP4: PRM: Correct reset source map
ARM: OMAP: SRAM: resolve sparse warnings
ARM: OMAP AM33xx: hwmod data: resolve sparse warnings
ARM: OMAP: 32k counter: resolve sparse warnings
Signed-off-by: Olof Johansson <olof@lixom.net>
From Kukjin Kim:
Most of them are EXYNOS5440 fixes which are for changing uart console,
cpu id (typo) and silent complaining gpio error in kernel boot.
* 'v3.8-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: skip the clock initialization for exynos5440
ARM: EXYNOS: enable PINCTRL for EXYNOS5440
ARM: dts: use uart port1 for console on exynos4210-smdkv310
ARM: dts: use uart port0 for console on exynos5440-ssdk5440
ARM: SAMSUNG: fix the cpu id for EXYNOS5440
ARM: EXYNOS: Revise HDMI resource size
is unresponsive for quite a while. People start complaining the missing
of such an important fix.
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Merge tag 'mxs-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo:
I have to send one critical mxsfb fix through arm-soc, as FB maintainer
is unresponsive for quite a while. People start complaining the missing
of such an important fix.
* tag 'mxs-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6:
video: mxsfb: fix crash when unblanking the display
ARM: dts: imx23-olinuxino: Fix IOMUX settings
when the port gets brought up. The other two are non-critical fixes,
which are sent together here, since it's still early -rc stage.
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Merge tag 'imx-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo:
It includes one critical fix - wrong flexcan2 clock will hang system
when the port gets brought up. The other two are non-critical fixes,
which are sent together here, since it's still early -rc stage.
* tag 'imx-fixes-3.8' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: mx5: Fix MX53 flexcan2 clock
ARM: dts: imx31-bug: Fix manufacturer compatible string
clk: imx: Remove 'clock-output-names' from the examples
Use dynamic percpu allocations for the shared msrs structure,
to avoid using the limited reserved percpu space.
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This patch fixes some code that implements a work-around to a hardware bug in
the ac97 controller on the pxa27x. A bug in the controller's warm reset
functionality requires that the mfp used by the controller as the AC97_nRESET
line be temporarily reconfigured as a generic output gpio (AF0) and manually
held high for the duration of the warm reset cycle. This is what was done in
the original code, but it was broken long ago by commit fb1bf8cd
([ARM] pxa: introduce processor specific pxa27x_assert_ac97reset())
which changed the mfp to a GPIO input instead of a high output.
The fix requires the ac97 controller to obtain the gpio via gpio_request_one(),
with arguments that configure the gpio as an output initially driven high.
Tested on a palm treo 680 machine. Reportedly, this broken code only prevents a
warm reset on hardware that lacks a pull-up on the line, which appears to be the
case for me.
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
Just map the read*_relaxed() functions to their corresponding read*() functions.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Export cpu_topology symbol, so it's available for modules.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Export pm_power_off symbol. Needed by at least one of the new device
drivers that come with CONFIG_PCI.
And all other architectures export that symbol as well.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Define isa_dma_bridge_buggy. Needed to make pci quirks compile:
drivers/pci/quirks.c: In function ‘quirk_isa_dma_hangs’:
drivers/pci/quirks.c:88:7: error: ‘isa_dma_bridge_buggy’ undeclared (first use in this function)
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Count CPU Restart events and make them visible via /proc/interrupts.
Every CPU hotplug (online) event will increase the per cpu counter.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Now that irq sum accounting for /proc/stat's "intr" line works again we
have the oddity that the sum field (first field) contains only the sum
of the second (external irqs) and third field (I/O interrupts).
The reason for that is that these two fields are already sums of all other
fields. So if we would sum up everything we would count every interrupt
twice.
This is broken since the split interrupt accounting was merged two years
ago: 052ff461c8 "[S390] irq: have detailed
statistics for interrupt types".
To fix this remove the split interrupt fields from /proc/stat's "intr"
line again and only have them in /proc/interrupts.
This restores the old behaviour, seems to be the only sane fix and mimics
a behaviour from other architectures where /proc/interrupts also contains
more than /proc/stat's "intr" line does.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
For more than two years, since f2c66cd8ee
"/proc/stat: scalability of irq num per cpu" the output of /proc/stat is
broken.
The first field in the "intr" line should contain the sum of all interrupts,
however since the above mentioned change it is always zero.
The reason for that is that a per cpu irq sum variable had been introduced
which got incremented when calling kstat_incr_irqs_this_cpu(). However
on s390 we directly incremented only the per cpu per irq counter by accessing
the array element via kstat_cpu(smp_processor_id()).irqs[...].
So fix this and use the kstat_incr_irqs_this_cpu() wrapper which increments
both: the per cpu per irq counter and the per cpu irq sum counter.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Get rid of these:
arch/s390/pci/pci_dma.c:16:29: warning: ‘zpci_ioat_dt’ defined but not used [-Wunused-variable]
arch/s390/pci/pci.c:164:12: warning: ‘zpci_store_fib’ defined but not used [-Wunused-function]
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Fixes this section mismatch:
WARNING: vmlinux.o(.text+0x145e4): Section mismatch in reference from the function
smp_add_present_cpu() to the function .cpuinit.text:register_cpu()
The function smp_add_present_cpu() references
the function __cpuinit register_cpu().
This is often because smp_add_present_cpu lacks a __cpuinit
annotation or the annotation of register_cpu is wrong.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The debug_register/unregister_view() functions call debugfs_remove()
while holding the debug_info spinlock. Because debugfs_remove() takes
a mutex and therefore can sleep this is not allowed. To fix the problem
we give up the debug_info lock before calling debugfs_remove().
The following shows the lockdep message:
[ INFO: possible circular locking dependency detected ]
-------------------------------------------------------
rmmod/4379 is trying to acquire lock:
(&sb->s_type->i_mutex_key#2){+.+.+.}, at: [<00000000003acae2>] debugfs_remove+0x5e/0xa
but task is already holding lock:
(&(&rc->lock)->rlock){-.-...}, at: [<000000000010a5ae>] debug_unregister_view+0x3a/0xd
which lock already depends on the new lock.
-> #0 (&sb->s_type->i_mutex_key#2){+.+.+.}:
[<00000000001b1644>] validate_chain+0x880/0x1154
[<00000000001b4d6c>] __lock_acquire+0x414/0xc44
[<00000000001b5c16>] lock_acquire+0xbe/0x178
[<0000000000614016>] mutex_lock_nested+0x66/0x36c
[<00000000003acae2>] debugfs_remove+0x5e/0xac
[<000000000010a620>] debug_unregister_view+0xac/0xd0
[<000003ff8002f140>] qeth_core_exit+0x48/0xf08 [qeth]
[<00000000001c35a4>] SyS_delete_module+0x1a4/0x260
[<0000000000618134>] sysc_noemu+0x22/0x28
[<000003fffd4704da>] 0x3fffd4704da
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
- use correct uart driver for mvebu boards
- add a missing DT clocks
- gpio-poweroff level vs. edge triggering, use gpio_is_valid()
- remove an inappropriate __init, modules need to access function.
- various DT fixes
- error handling in mv_xor
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Merge tag 'mvebu_fixes_for_v3.8' of git://git.infradead.org/users/jcooper/linux into fixes
From Jason Cooper:
fixes for mvebu/kirkwood v3.8
- use correct uart driver for mvebu boards
- add a missing DT clocks
- gpio-poweroff level vs. edge triggering, use gpio_is_valid()
- remove an inappropriate __init, modules need to access function.
- various DT fixes
- error handling in mv_xor
* tag 'mvebu_fixes_for_v3.8' of git://git.infradead.org/users/jcooper/linux:
pinctrl: mvebu: make pdma clock on dove mandatory
ARM: Dove: Add pinctrl clock to DT
dma: mv_xor: fix error handling for clocks
dma: mv_xor: fix error handling of mv_xor_channel_add()
arm: mvebu: Add missing ; for cpu node.
arm: mvebu: Armada XP MV78230 has only three Ethernet interfaces
arm: mvebu: Armada XP MV78230 has two cores, not one
clk: mvebu: Remove inappropriate __init tagging
ARM: Kirkwood: Use fixed-regulator instead of board gpio call
ARM: Kirkwood: Fix missing sdio clock
ARM: Kirkwood: Switch TWSI1 of 88f6282 to DT clock providers
Power: gpio-poweroff: Fix documentation and gpio_is_valid
ARM: Kirkwood: Fix missing clk for USB device.
arm: mvebu: Use dw-apb-uart instead of ns16650 as UART driver
Signed-off-by: Olof Johansson <olof@lixom.net>
I mismerged a previous branch from Alexander, and accidentally left
in ARCH_USES_GETTIMEOFFSET. Remove it.
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Alexander Shiyan <shc_work@mail.ru>
From Linus Walleij:
Two fixes to the Nomadik:
- Delete a dangling include
- Bump IRQ numbers to offset at 32
* tag 'nomadik-fixes-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
ARM: nomadik: bump the IRQ numbers again
ARM: nomadik: delete dangling include
This fixes suspend to RAM adding necessary save and restore of L2 and GIC.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
When we fail to power down, we need to clear out the power request.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
With commit 384a290 (ARM: gic: use a private mapping for CPU target
interfaces), wake-up IPIs now go to all cores as the gic cpu interface
numbering may not follow core numbering. This broke secondary boot on
highbank since the boot address was already set for all secondary cores,
this caused all cores to boot before the kernel was ready.
Fix this by moving the setting of the jump address to
highbank_boot_secondary instead of highbank_smp_prepare_cpus and
highbank_cpu_die. Also, clear the address when we boot. This prevents
cores from booting before they are actually triggered and is also necessary
to get suspend/resume to work.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
With the addition of commit a0ae0240 (ARM: kernel: add device tree init
map function), the cpu reg values must match the cpu mpidr register or we'll
get warnings. For some reason, the CLUSTERID on highbank is 9, so the reg
value needs to be 0x90n to quiet the warnings.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
While device_type is considered deprecated, it is still needed for tools
like lshw to identify cpu nodes.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The second FlexCAN port uses different clock than the first one, configure
correct clock to prevent hanging of the system during bringing up of the port.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
On 24-Nov-12, at 10:05 AM, John David Anglin wrote:
> In trying to build the debian libsigsegv2 package, I found that sigaltstack
> doesn't round ss.ss_sp. The tests intentionally pass an unaligned pointer.
> This results in the two stack overflow tests failing.
The attached patch fixes this issue.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Various GCC tests use gdb to simulate a multithreaded application. Many of
these tests have been failing on parisc linux.
GCC does this by using gdb to single-step the application, then gdb is used to
call other test specific code. Where this fails is when the application is
stepped into the delay slot of a taken branch. This sets the PSW B bit. When
the test specific code is executed, this usually clears the PSW B bit.
Currently, gdb is not allowed to set the B bit. So, the code falls through what
should be a taken branch.
The attached patch adds the PSW B bit to the set of bits that gdb is allowed to
set. In order to set the B bit, the trace system call must return using an
interrupt restore. The patch also modifies this code to use the saved IAOQ
values when they are saved by a ptrace syscall or interruption.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
The CPU irqs (timer and IPI) are not shared and only need to be claimed once.
A mismatch error occurs if they are claimed more than once.
Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Signed-off-by: Helge Deller <deller@gmx.de>
The attached change fixes a float conversion problem found running the
GCC testsuite with GCC configured with --with-arch=2.0.
The actual problem occurs for an exponent value of 63. This is the
maximum exponent value that can be passed. This causes a left shift by
32 in the else hunk of the macro. This causes undefined behavior and the
wrong value is returned for dresultB. The fix is the check "exponent <=
62". If the exponent is 63, dresultB is set to 0. The patch also
optimizes the operation a bit by copying "Sall(sgl_value) <<
SGL_EXP_LENGTH" to val, so that sgl_value is not modified.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
The IRQ array must be terminated by -1 and not by -1+OMAP_INTC_START
This led to having a resource list of 100s of IRQs.
Looks like this was caused by commit a2cfc509 (ARM: OMAP3+: hwmod: Add
AM33XX HWMOD data) that probably had some search and replace updates
done for the patch for sparse irq support.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
[tony@atomide.com: updated wit information about the breaking commit]
Signed-off-by: Tony Lindgren <tony@atomide.com>
During merge of the mvebu patches a clock gate for pinctrl was
lost. This patch just readds the clock gate.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Pull MIPS fixes from Ralf Baechle:
"Various fixes across the tree. The modpost error due to
virt_addr_valid() not being usable from modules required a number of
preparatory cleanups so a clean fix was possible."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: 64-bit: Fix build if !CONFIG_MODULES
MIPS: Wire up finit_module syscall.
MIPS: Fix modpost error in modules attepting to use virt_addr_valid().
MIPS: page.h: Remove now unnecessary #ifndef __ASSEMBLY__ wrapper.
MIPS: Switch remaining assembler PAGE_SIZE users to <asm/asm-offsets.h>.
MIPS: Include PAGE_S{IZE,HIFT} in <asm/offset.h>.
MIPS: Don't include <asm/page.h> unnecessarily.
MIPS: Fix comment.
Revert "MIPS: Optimise TLB handlers for MIPS32/64 R2 cores."
MIPS: perf: Fix build failure in XLP perf support.
MIPS: Alchemy: Make 32kHz and r4k timer coexist peacefully
Pull microblaze update from Michal Simek:
"This fixes noMMU kernel and I have also added defconfig updates which
fix issue with one external dependency and enable all xilinx device
drivers for 0-day testing system.
Additionally wire up finit_module system call, and do highmem fixup
and pci warnings reported by the 0-day testing system"
* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Update microblaze defconfigs
microblaze: Fix pci compilation and sparse warnings
microblaze: Add finit_module syscall
microblaze: Kill __kmap_atomic()
microblaze: Change section flags for noMMU
microblaze: Microblaze wants sys_fork for noMMU too
The use of writel instead of writel_relaxed lead to deadlock in some
situation (SMP on Armada 370 for instance). The use of writel_relaxed
as it was done in the rest of this driver fixes this bug.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch fixes a bug for Aurora L2 cache controller when the
write-through mode is enable. For the clean operation even if we don't
have to flush the lines we still need to invalidate them.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Compiling 3.8-rc1 fails for some m68k targets (the non-mmu ones) with:
CC arch/m68k/mm/init.o
arch/m68k/mm/init.c: In function ‘mem_init’:
arch/m68k/mm/init.c:191:2: error: implicit declaration of function ‘init_pointer_table’
arch/m68k/mm/init.c:191:36: error: ‘kernel_pg_dir’ undeclared (first use in this function)
arch/m68k/mm/init.c:191:36: note: each undeclared identifier is reported only once for each function it appears in
arch/m68k/mm/init.c:192:18: error: ‘PTRS_PER_PGD’ undeclared (first use in this function)
arch/m68k/mm/init.c:194:4: error: implicit declaration of function ‘__pgd_page’
arch/m68k/mm/init.c:198:6: error: ‘zero_pgtable’ undeclared (first use in this function)
make[2]: *** [arch/m68k/mm/init.o] Error 1
make[1]: *** [arch/m68k/mm] Error 2
make[1]: Leaving directory `/home/gerg/new-wave.git/linux-3.x'
make: *** [linux] Error 1
Change the conditions that define init_pointer_table so that it matches what
actually uses it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
To be consistent with the set of MMU definitions we should define KMAP_START
and KMAP_END. Future common m68k code will use their values.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
If CONFIG_ARCH_MULTIPLATFORM & CONFIG_ARCH_MVEBU are both enabled,
__v7_pj4b_setup is added between __v7_ca9mp_setup and __v7_setup.
But there's no jump instruction added. If the chip is Cortex A5/A9,
it goes through __v7_pj4b_setup also. It results in system hang.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Since commit 62e4d357a (ARM: 7609/1: disable errata work-arounds which access
secure registers) ARM_ERRATA_743622/751472 depends on !ARCH_MULTIPLATFORM.
Since imx has been converted to multiplatform, the following warning happens:
$ make imx_v6_v7_defconfig
warning: (SOC_IMX6Q && ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects
ARM_ERRATA_751472 which has unmet direct dependencies (CPU_V7 &&
!ARCH_MULTIPLATFORM)
warning: (SOC_IMX6Q && ARCH_TEGRA_3x_SOC) selects ARM_ERRATA_743622
which has unmet direct dependencies (CPU_V7 && !ARCH_MULTIPLATFORM)
warning: (SOC_IMX6Q && ARCH_TEGRA_3x_SOC) selects ARM_ERRATA_743622
which has unmet direct dependencies (CPU_V7 && !ARCH_MULTIPLATFORM)
warning: (SOC_IMX6Q && ARCH_TEGRA_2x_SOC && ARCH_TEGRA_3x_SOC) selects
ARM_ERRATA_751472 which has unmet direct dependencies (CPU_V7 &&
!ARCH_MULTIPLATFORM)
Recommended approach is to remove ARM_ERRATA_743622/751472 from being selected
by SOC_IMX6Q and apply such workarounds into the bootloader.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The Armada XP MV78230 DT include file is missing a ; at the
end of the cpu node.
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
We originally thought that the MV78230 variant of the Armada XP had
four Ethernet interfaces, like the other variants MV78260 and
MV78460. In fact, this is not true, and the MV78230 has only three
Ethernet interfaces.
So, the definitions of the Ethernet interfaces is now done as follows:
* armada-370-xp.dtsi: definitions of the first two interfaces, that
are common to Armada 370 and Armada XP
* armada-xp.dtsi: definition of the third interface, common to all
Armada XP variants.
* armada-xp-mv78260.dtsi and armada-xp-mv78460.dtsi: definition of
the fourth interface.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Contrary to our understanding at the time armada-xp-mv78230.dtsi was
written, the MV78230 variant of the Armada XP SoC has two cores and
not one. This patch updates the .dtsi file to take into account this
reality.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
With the change to a DT based pinctrl/gpio driver, using gpio API
calls in board-*.c files no longer works, a dereferenced NULL pointer
exception occurs instead. By converting the GPIO code into a
fixed-regulator which gets probed later once pinctrl/gpio is
available, we avoid the exception.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Stefan Peter <s.peter@mplch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
We moved to declaring clk gates in DT. However, device which do not
yet have a DT binding need to have a clkdev alias. This was missing
for SDIO.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Stefan Peter <s.peter@mplch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Clock Management of kirkwood has moved to DT clock providers.
However, TWSI1 has not yet been done.
This switches TWSI1 of 88f6282 to DT clock providers.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Without the clock being held by a driver, it gets turned off at a bad
time causing the SoC to lockup. This is often during reboot.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Stefan Peter <s.peter@mpl.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
The UART controller used in the Armada 370 and Armada XP SoCs is the
Synopsys DesignWare 8250 (aka Synopsys DesignWare ABP UART). The
improper use of the ns16550 can lead to a kernel oops during boot if
a character is sent to the UART before the initialization of the
driver. The DW APB has an extra interrupt that gets raised when
writing to the LCR when busy. This explains why we need to use
dw-apb-uart driver to handle this.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Fixes this build breakage:
arch/powerpc/kvm/book3s_hv_ras.c: In function ‘kvmppc_realmode_mc_power7’:
arch/powerpc/kvm/book3s_hv_ras.c:126:23: error: ‘struct paca_struct’ has no member named ‘opal_mc_evt’
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Since exynos5440 can support only common clk stuff, so this
patch skips legacy exynos5 clock initialization.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
The main reason is 0-day testing system which can directly
use these defconfigs for testing.
Enable support for all xilinx drivers which Microblaze
can use and disable dependency on external rootfs.cpio.
There is only one exception which is axi ethernet driver
which still uses NO_IRQ which is not defined for Microblaze.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Warning log:
CHECK arch/microblaze/pci/pci-common.c
arch/microblaze/pci/pci-common.c:290:14: warning: Using plain integer as NULL pointer
arch/microblaze/pci/pci-common.c:1127:6: warning: symbol
'pcibios_allocate_bus_resources' was not declared. Should it be static?
arch/microblaze/pci/pci-common.c:1436:61: warning: incorrect type in argument 3 (different base types)
arch/microblaze/pci/pci-common.c:1436:61: expected unsigned int [unsigned] [usertype] offset
arch/microblaze/pci/pci-common.c:1436:61: got void [noderef] <asn:2>*
CC arch/microblaze/pci/pci-common.o
arch/microblaze/pci/pci-common.c: In function 'pci_proc_domain':
arch/microblaze/pci/pci-common.c:825:25: warning: unused variable 'hose' [-Wunused-variable]
arch/microblaze/pci/pci-common.c: In function 'pcibios_allocate_bus_resources':
arch/microblaze/pci/pci-common.c:1182:1: warning: label 'clear_resource' defined but not used [-Wunused-label]
arch/microblaze/pci/pci-common.c: In function 'pcibios_setup_phb_resources':
arch/microblaze/pci/pci-common.c:1436:2: warning: passing argument 3 of
'pci_add_resource_offset' makes integer from pointer without a cast [enabled by default]
include/linux/pci.h:999:6: note: expected 'resource_size_t' but argument is of type 'void *'
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
In the compatible field we should point the manufacturer of the board, which
in this case is Buglabs.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Here are the remaining __dev* removal patches against the 3.8-rc2 tree.
All of these patches were previously sent to the subsystem maintainers,
most of them were picked up and pushed to you, but there were a number
that fell through the cracks, and new drivers were added during the
merge window, so this series cleans up the rest of the instances of
these markings.
Third time's the charm...
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core __dev* removal patches - take 3 - from Greg Kroah-Hartman:
"Here are the remaining __dev* removal patches against the 3.8-rc2
tree. All of these patches were previously sent to the subsystem
maintainers, most of them were picked up and pushed to you, but there
were a number that fell through the cracks, and new drivers were added
during the merge window, so this series cleans up the rest of the
instances of these markings.
Third time's the charm...
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fixed up trivial conflict with the pinctrl pull in pinctrl-sirf.c.
* tag 'driver-core-3.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (54 commits)
misc: remove __dev* attributes.
include: remove __dev* attributes.
Documentation: remove __dev* attributes.
Drivers: misc: remove __dev* attributes.
Drivers: block: remove __dev* attributes.
Drivers: bcma: remove __dev* attributes.
Drivers: char: remove __dev* attributes.
Drivers: clocksource: remove __dev* attributes.
Drivers: ssb: remove __dev* attributes.
Drivers: dma: remove __dev* attributes.
Drivers: gpu: remove __dev* attributes.
Drivers: infinband: remove __dev* attributes.
Drivers: memory: remove __dev* attributes.
Drivers: mmc: remove __dev* attributes.
Drivers: iommu: remove __dev* attributes.
Drivers: power: remove __dev* attributes.
Drivers: message: remove __dev* attributes.
Drivers: macintosh: remove __dev* attributes.
Drivers: mfd: remove __dev* attributes.
pstore: remove __dev* attributes.
...
This fixes up all of the smaller arches that had __dev* markings for
their platform-specific drivers.
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Bob Liu <lliubbo@gmail.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Myron Stowe <myron.stowe@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Yong Zhang <yong.zhang0@gmail.com>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Jan Glauber <jang@linux.vnet.ibm.com>
Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitconst,
and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Daniel Drake <dsd@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bump the IRQ numbers from offset at 1 (right above NO_IRQ)
to 32. This is the painful way to learn that if you're using
SPARSE_IRQ and avoid to define .nr_irqs in your machine,
the first 16 IRQs will be pre-allocated, and the IRQdomain
code (as the VIC core code before it) will then assume
that all IRQ descriptors are pre-allocated, and 16 of them
are - by somebody else. So mapping the IRQs will fail in
irq_create_mapping(). Moving the offset upward rids us of
this problem.
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This reference to the old include header for the FSMC NAND
MTD driver was somehow left in place, get rid of it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- i.MX5 register configuration
- Swap a kfree to devm_kfree() to avoid memory
corruption in the at91 driver
- Add the missing device tree binding doc for the
SIRF pin controller
- Enable the SIRF GPIO pull up/down configuration
from the device tree, it was previously retired
from the hard-coded approach.
- NULL check for the prcm_base in the Nomadik pin
controller.
- Provide the prcm_base from the device tree in the
DT boot path for the Nomadik pin controller.
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Merge tag 'pinctrl-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
"A first round of pinctrl fixes for v3.8:
- i.MX5 register configuration
- Swap a kfree to devm_kfree() to avoid memory corruption in the at91
driver
- Add the missing device tree binding doc for the SIRF pin controller
- Enable the SIRF GPIO pull up/down configuration from the device
tree, it was previously retired from the hard-coded approach.
- NULL check for the prcm_base in the Nomadik pin controller.
- Provide the prcm_base from the device tree in the DT boot path for
the Nomadik pin controller."
* tag 'pinctrl-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
ARM: ux500: add pinctrl address resources
pinctrl: nomadik: return if prcm_base is NULL
pinctrl: sirf: enable GPIO pullup/down configuration from dts
pinctrl: sirf: add missing DT-binding document
pinctrl: fix comment mistake
drivers/pinctrl/pinctrl-at91.c: convert kfree to devm_kfree
pinctrl: imx5: fix GPIO_8 pad CAN1_RXCAN configuration
Pull powerpc fixes from Ben Herrenschmidt:
"Here are a couple of small powerpc fixes. They aren't new bugs (and
they are both CCed to stable) but I didn't see the point of sitting on
the fixes any longer."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Add missing NULL terminator to avoid boot panic on PPC40x
powerpc/vdso: Remove redundant locking in update_vsyscall_tz()
logs are available here:
http://www.pwsan.com/omap/testlogs/prcm_fixes_b_3.8-rc/20130102120724/
The 3730 Beagle XM here has an intermittent failure mounting SD root,
but the suspicion right now is that this is due to a failing SD card,
rather than any change introduced by these patches.
This second version includes a few changes requested by Tony Lindgren.
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Merge tag 'omap-fixes-a2-for-v3.8-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.8-rc2/fixes
Some OMAP PRCM and sparse fixes against v3.8-rc1. A basic set of test
logs are available here:
http://www.pwsan.com/omap/testlogs/prcm_fixes_b_3.8-rc/20130102120724/
The 3730 Beagle XM here has an intermittent failure mounting SD root,
but the suspicion right now is that this is due to a failing SD card,
rather than any change introduced by these patches.
This second version includes a few changes requested by Tony Lindgren.
Linux was granted a new system call to load modules by file descriptor
in commit 34e1169d99 ("module: add syscall to load module from fd").
Wire it up for ia64 (ready for the Chrome port :-)
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
All files which uses user unified macros from uaccess.h
(get_user/put_user/clear_user/copy_tofrom_user/
strnlen_user and strncpy_user) generate this
warning messages:
Assembler messages:
Warning: ignoring changed section attributes for .discard
Setting up discard executable section flang for __EX_TABLE_SECTION
macro removed all these warnings.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The patch "generic sys_fork / sys_vfork / sys_clone"
(sha1: d2125043ae)
introduced generic sys_fork with implementation for noMMU
which returns EINVAL for noMMU.
and the patch "microblaze: switch to generic fork/vfork/clone"
(sha1: f3268edbe6)
enable sys_fork only for MMU which is causing compilation
failure on noMMU system.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The locking in update_vsyscall_tz() is not only unnecessary because the vdso
code copies the data unproteced in __kernel_gettimeofday() but also
introduces a hard to reproduce race condition between update_vsyscall()
and update_vsyscall_tz(), which causes user space process to loop
forever in vdso code.
The following patch removes the locking from update_vsyscall_tz().
Locking is not only unnecessary because the vdso code copies the data
unprotected in __kernel_gettimeofday() but also erroneous because updating
the tb_update_count is not atomic and introduces a hard to reproduce race
condition between update_vsyscall() and update_vsyscall_tz(), which further
causes user space process to loop forever in vdso code.
The below scenario describes the race condition,
x==0 Boot CPU other CPU
proc_P: x==0
timer interrupt
update_vsyscall
x==1 x++;sync settimeofday
update_vsyscall_tz
x==2 x++;sync
x==3 sync;x++
sync;x++
proc_P: x==3 (loops until x becomes even)
Because the ++ operator would be implemented as three instructions and not
atomic on powerpc.
A similar change was made for x86 in commit 6c260d5863
("x86: vdso: Remove bogus locking in update_vsyscall_tz")
Signed-off-by: Shan Hai <shan.hai@windriver.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Pull watchdog fixes from Wim Van Sebroeck:
"This fixes some small errors in the new da9055 driver, eliminates a
compiler warning and adds DT support for the twl4030_wdt driver (so
that we can have multiple watchdogs with DT on the omap platforms)."
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: twl4030_wdt: add DT support
watchdog: omap_wdt: eliminate unused variable and a compiler warning
watchdog: da9055: Don't update wdt_dev->timeout in da9055_wdt_set_timeout error path
watchdog: da9055: Fix invalid free of devm_ allocated data
PCI: Reduce Ricoh 0xe822 SD card reader base clock frequency to 50MHz
PCI: Remove spurious error for sriov_numvfs store and simplify flow
PCI: Add PCIe Link Capability link speed and width names
PCI/PM: Do not suspend port if any subordinate device needs PME polling
PCI: Work around Stratus ftServer broken PCIe hierarchy (fix DMI check)
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Merge tag '3.8-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Some fixes for v3.8. They include a fix for the new SR-IOV sysfs
management support, an expanded quirk for Ricoh SD card readers, a
Stratus DMI quirk fix, and a PME polling fix."
* tag '3.8-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Reduce Ricoh 0xe822 SD card reader base clock frequency to 50MHz
PCI/PM: Do not suspend port if any subordinate device needs PME polling
PCI: Add PCIe Link Capability link speed and width names
PCI: Work around Stratus ftServer broken PCIe hierarchy (fix DMI check)
PCI: Remove spurious error for sriov_numvfs store and simplify flow
Fix build failure if building a monolithic kernel due to
arch/mips/kernel/Kconfig selecting MODULES_USE_ELF_REL[A] without checking
to see if MODULES is set or not. This leads to 'struct module' not
existing, which triggers a compile failure in arch/mips/kernel/module-rela.c
when the compiler attempts to dereference me->name:
CC arch/mips/kernel/module-rela.o
arch/mips/kernel/module-rela.c: In function ‘apply_r_mips_26_rela’:
arch/mips/kernel/module-rela.c:38:74: error: dereferencing pointer to incomplete type
arch/mips/kernel/module-rela.c:46:12: error: dereferencing pointer to incomplete type
arch/mips/kernel/module-rela.c: In function ‘apply_relocate_add’:
arch/mips/kernel/module-rela.c:133:13: error: dereferencing pointer to incomplete type
make[2]: *** [arch/mips/kernel/module-rela.o] Error 1
Signed-off-by: Joshua Kinard <kumba@gentoo.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4749/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
On OMAP2xxx chips, the register bitfields for the
PM_PWSTCTRL_*.POWERSTATE and PM_PWSTST_*.LASTSTATEENTERED are
different than those used on OMAP3/4. The order is reversed. So, for
example, on OMAP2xxx, 0x0 indicates 'ON'; but on OMAP3/4, 0x0
indicates 'OFF'. Similarly, on OMAP2xxx, 0x3 indicates 'OFF', but on
OMAP3/4, 0x3 indicates 'ON'.
To fix this, we treat the OMAP3/4 values as the powerdomain API
values, and create new low-level powerdomain functions for the
OMAP2xxx chips which translate between the OMAP2xxx values and the
OMAP3/4 values.
Without this patch, the conversion of the OMAP2xxx PM code to the
functional powerstate code results in a non-booting kernel.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
The ETM/ETB drivers for OMAP3, enable the emu_src_ck clock in order
to access the ETM/ETB hardware. The emu_src_ck should enable the EMU
clock domain so that the ETM/ETB hardware is accessible. However,
currently when enabling the emu_src_ck the EMU clock domain is not
being enabled and so the ETM/ETB drivers are failing. Add enable/disable
clock functions to enable the EMU clock domain when enabling the
emu_src_ck.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
To read reset sources registers we have to use PRM_DEVICE_INST
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
RSTTIME is offset 0x8 and RSTST is offset 0x04 for OMAP4430 and
OMAP4460.
Signed-off-by: Nishanth Menon <nm@ti.com>
[ivan.khoronzhuk@ti.com: ported from k3.4]
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
In the map for reset sources register we use defines intended for
using with PRM_RSTCTRL register. So fix it.
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Commit 9b064fc3f9 (new helper:
compat_user_stack_pointer()) introduces a call to current_pt_regs()
which is defined in linux/ptrace.h, not currently included asm/compat.h.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Add DT support for twl4030_wdt. This is needed to get twl4030_wdt to
probe when booting with DT.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The VIC irqdomain code added in commit
07c9249f1f
"ARM: 7554/1: VIC: use irq_domain_add_simple()"
Had two bugs:
1) It didn't call irq_create_mapping() once on each
valid irq source in the slowpath when registering
the controller.
2) It passed a -1 as IRQ offset for the DT case, whereas
0 should be passed as invalid IRQ instead.
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The Versatile starts to register Linux IRQ numbers from offset 0
which is illegal, since this is NO_IRQ. Bump all hard-coded IRQs
by 32 to get rid of the problem.
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
In order to support secure and non-secure platforms in multi-platform
kernels, errata work-arounds that access secure only registers need to
be disabled. Make all the errata options that fit in this category
depend on !CONFIG_ARCH_MULTIPLATFORM.
This will effectively remove the errata options as platforms are
converted over to multi-platform.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
PL310 errata work-arounds using .set_debug function are only needed on
r3p0 and earlier, so check the rev and only set .set_debug on older revs.
Avoiding debug register accesses fixes aborts on non-secure platforms
like highbank. It is assumed that non-secure platforms needing these
work-arounds have already implemented .set_debug with secure monitor
calls.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Commit bb77209432 ("ARM: OMAP: Move
omap2+ specific parts of sram.c to mach-omap2") adds some new sparse
warnings:
arch/arm/plat-omap/sram.c:43:6: warning: symbol 'omap_sram_push_address' was not declared. Should it be static?
arch/arm/plat-omap/sram.c:65:6: warning: symbol 'omap_sram_reset' was not declared. Should it be static?
arch/arm/plat-omap/sram.c:73:13: warning: symbol 'omap_map_sram' was not declared. Should it be static?
This second version fixes the warnings by including <plat/sram.h>, at
Tony's request.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Commit 70384a6af0 ("ARM: OMAP3+:
hwmod: Add AM33XX HWMOD data for davinci_mdio module") adds two
new sparse warnings:
arch/arm/mach-omap2/omap_hwmod_33xx_data.c:2518:30: warning: symbol 'am33xx_mdio_addr_space' was not declared. Should it be static?
arch/arm/mach-omap2/omap_hwmod_33xx_data.c:2526:26: warning: symbol 'am33xx_cpgmac0__mdio' was not declared. Should it be static?
Fix by marking the two new records as static.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
From Tony Lindgren:
Here are few more patches to finish the omap changes for
multiplatform conversion that are not strictly fixes, but
were too complex to do with the dependencies during the
merge window. Those are to move of serial-omap.h to
platform_data, and the removal of remaining cpu_is_omap
macro usage outside mach-omap2.
Then there are several trivial fixes for typos and few
minimal omap2plus_defconfig updates.
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Merge tag 'omap-late-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull late ARM cleanups for omap from Olof Johansson:
"From Tony Lindgren:
Here are few more patches to finish the omap changes for multiplatform
conversion that are not strictly fixes, but were too complex to do
with the dependencies during the merge window. Those are to move of
serial-omap.h to platform_data, and the removal of remaining
cpu_is_omap macro usage outside mach-omap2.
Then there are several trivial fixes for typos and few minimal
omap2plus_defconfig updates."
* tag 'omap-late-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arch/arm/mach-omap2/dpll3xxx.c: drop if around WARN_ON
OMAP2: Fix a typo - replace regist with register.
ARM/omap: use module_platform_driver macro
ARM: OMAP2+: PMU: Remove unused header
ARM: OMAP4: remove duplicated include from omap_hwmod_44xx_data.c
ARM: OMAP2+: omap2plus_defconfig: enable twl4030 SoC audio
ARM: OMAP2+: omap2plus_defconfig: Add tps65217 support
ARM: OMAP2+: enable devtmpfs and devtmpfs automount
ARM: OMAP2+: omap_twl: Change TWL4030_MODULE_PM_RECEIVER to TWL_MODULE_PM_RECEIVER
ARM: OMAP2+: Drop plat/cpu.h for omap2plus
ARM: OMAP: Split fb.c to remove last remaining cpu_is_omap usage
MAINTAINERS: Add an entry for omap related .dts files
