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Commit Graph

70108 Commits

Author SHA1 Message Date
Arnd Bergmann
f66f9bdf6d Merge branch 'lpc32xx/drivers' into next/drivers 2012-03-15 14:48:42 +00:00
Arnd Bergmann
695d82fae9 Merge tag 'imx25-iomux-ds' of git://git.pengutronix.de/git/imx/linux-2.6 into next/fixes-non-critical
* tag 'imx25-iomux-ds' of git://git.pengutronix.de/git/imx/linux-2.6:
   iomux-mx25.h slew rate adjusted for LCD __LD pins

(update to v3.3-rc6)

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-03-15 13:49:42 +00:00
Marc Zyngier
218a280141 ARM: ux500: fix compilation after local timer rework
mach-ux500/timer.c lacked the inclusion of mach/irqs.h, and thus
failed to compile. Fix it and also remove an unused variable.

Test compiled only.

Reported-by: Lee Jones <lee.jones@linaro.org>
Cc: Arnd Bergman <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-03-15 11:05:39 +00:00
Dave Airlie
8229c885fe drm: Merge tag 'v3.3-rc7' into drm-core-next
Merge the fixes so far into core-next, needed to test
intel driver.

Conflicts:
	drivers/gpu/drm/i915/intel_ringbuffer.c
2012-03-15 10:24:32 +00:00
Takashi Iwai
828006de1b Merge tag 'asoc-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into topic/asoc
Linus decided to go for another week so here's a few more updates - a
mixed bag here, a few minor diagnostic tweaks, some driver enhancements
and the dmaengine conversion for ep93xx drivers which was tested a while
ago and just waiting for a signoff.
2012-03-15 07:37:22 +01:00
Julia Lawall
691c01c3f0 arch/sh/drivers/dma/{dma-g2,dmabrg}.c: ensure arguments to request_irq and free_irq are compatible
Convert calls to free_irq so that the second argument is the same as the
last argument of the corresponding call to request_irq.  Without this
property, free_irq does nothing.

In the case of dmabrg.c the change is merely cosmetic - changing 0 to NULL.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-15 15:14:43 +09:00
Kuninori Morimoto
e9dd7ed2a3 ARM: mach-shmobile: ap4evb: Reserve DMA memory for the frame buffer
ap4evb board needs the same fix as
1740d34480
(ARM: mach-shmobile: mackerel: Reserve DMA memory for the frame buffer)

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-15 15:13:05 +09:00
Tushar Behera
efd5af0dc9 ARM: EXYNOS: Fix compilation error with mach-exynos4-dt board
Commit 171c067 ("ARM: EXYNOS: add support uart for EXYNOS4 and
EXYNOS5") renames S5P_PA_UARTn to EXYNOS4_PA_UARTn. Hence we
need to do similar modification in mach-exynos4-dt.c to fix
compilation error.

arch/arm/mach-exynos/mach-exynos4-dt.c:40:2: error: 'S5P_PA_UART0'
undeclared here (not in a function)

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 22:22:13 -07:00
Kukjin Kim
b074abb719 ARM: dts: add initial dts file for EXYNOS5250, SMDK5250
This patch adds initial dts file for EXYNOS5250 SoC. This dts
file is including the SoC specific devices and properties. And
adds the dts file for SMDK5250 board which uses the EXYNOS5250
dts file. Its board specific properites will be added later.

Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 22:22:12 -07:00
Kukjin Kim
b3e68fb17a ARM: EXYNOS: add support device tree enabled board file for EXYNOS5
This patch adds a new EXYNOS5 compatible device tree enabled board
When using this, a corresponding device tree blob which describes the
board's properties should be supplied at boot time to the kernel.

Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 22:22:06 -07:00
Linus Torvalds
cc198126c5 Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile update to run "make minconfig" on the tile defconfigs
from Chris Metcalf.

This removes almost three thousand lines of inane defconfig chatter.

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile/configs: convert to minimal configs via "make savedefconfig"
2012-03-14 17:13:49 -07:00
H. Peter Anvin
31796ac4e8 x32: Fix alignment fail in struct compat_siginfo
Adding struct _sigchld_x32 caused a misalignment cascade in struct
siginfo, because union _sifields is located on an 4-byte boundary
(8-byte misaligned.)

Adding new fields that are 8-byte aligned caused the intermediate
structures to also be aligned to 8 bytes, thereby adding padding in
unexpected places.

Thus, change s64 to compat_s64 here, which makes it "misaligned on
paper".  In reality these fields *are* actually aligned (there are 3
preceeding ints outside the union and 3 inside struct _sigchld_x32),
but because of the intervening union and struct it is not possible for
gcc to avoid padding without breaking the ABI.

Reported-and-tested-by: H. J. Lu <hjl.tools@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Link: http://lkml.kernel.org/r/1329696488-16970-1-git-send-email-hpa@zytor.com
2012-03-14 14:27:52 -07:00
Rajendra Nayak
b3431f5ba4 arm/dts: OMAP3: Add mmc controller nodes and board data
Add OMAP mmc related device tree data for OMAP3.
Currenly limited to only omap3-beagle board.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
2012-03-14 21:54:57 +01:00
Rajendra Nayak
7498176803 arm/dts: OMAP4: Add mmc controller nodes and board data
Add OMAP mmc related device tree data for OMAP4.
Currenly limited to only omap4-panda and omap4-sdp
boards.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
2012-03-14 21:48:51 +01:00
Liu Jiang
0577bb661e [IA64] Fix ISA IRQ trigger model and polarity setting
When handling Interrupt Source Override in MADT table, the default
ISA IRQ trigger model and polarity should be edge-rising.
Current IA64 implmentation doesn't follow the specification and
set default ISA IRQ trigger model as level-low. With that wrong
configuration and when system runs out of interrupt vectors,
it will cause vector sharing among edge triggered ISA IRQ and
level triggered PCI IRQ, then interrupt storm. So change the code
to follow the specification.

Signed-off-by: Liu Jiang <jiang.liu@huawei.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-03-14 13:35:47 -07:00
Alex Gershgorin
25af2d9f85 i.MX35-PDK: Add Camera support
In i.MX35-PDK, OV2640  camera is populated on the
personality board. This camera is registered as a subdevice via soc-camera interface.

Signed-off-by: Alex Gershgorin <alexg@meprolight.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-03-14 20:16:09 +01:00
wu guoxing
881e09f8c6 ARM : mx35: 3ds-board: add framebuffer device
This patch adds framebuffer support for freescale mx35 3ds board

Signed-off-by: Wu Guoxing <b39297@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-03-14 20:07:58 +01:00
Jaecheol Lee
562a6cbe1c EXYNOS5250: Add support cpufreq for EXYNOS5250
This patch adds support cpufreq for EXYNOS5250 SoC. Basically,
the exynos-cpufreq.c is used commonly and exynos5250-cpufreq.c
is used for EXYNOS5250(two Cortex-A15 cores) SoC.

Signed-off-by: Jaecheol Lee <jc.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Dave Jones <davej@redhat.com>
2012-03-14 14:39:50 -04:00
Jaecheol Lee
a35c50510d EXYNOS4X12: Add support cpufreq for EXYNOS4X12
This patch adds support cpufreq for EXYNOS4X12 SoCs. Basically,
the exynos-cpufreq.c is used commonly and exynos4x12-cpufreq.c
is used for EXYNOS4212(two Cortex-A9 cores) and EXYNOS4412(four
Cortex-A9 cores) SoCs.

Signed-off-by: Jaecheol Lee <jc.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Dave Jones <davej@redhat.com>
2012-03-14 14:39:47 -04:00
Chris Metcalf
ce06b0f550 arch/tile/configs: convert to minimal configs via "make savedefconfig"
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-03-14 14:33:16 -04:00
Sangsu Park
d39c815278 gpio/samsung: use ioremap() for EXYNOS4 GPIOlib
This patch changes to use ioremap() for EXYNOS4210
so that we can drop the static mapping for EXYNOS
SoCs.

Note: Will be updated for all of Samsung GPIOlibs
to use ioremap() next time.

Signed-off-by: Sangsu Park <sangsu4u.park@samsung.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 06:51:35 -07:00
Sangsu Park
bcdc87b594 ARM: EXYNOS: add support GPIO for EXYNOS5250
This patch adds support regarding GPIO definitions for
EXYNOS5250 and change the macro of GPIO numbering to use
EXYNOS4 and EXYNOS5 SoCs.

Signed-off-by: Sangsu Park <sangsu4u.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 06:51:20 -07:00
Kukjin Kim
23f16c7b7c ARM: EXYNOS: add support ARCH_EXYNOS5 for EXYNOS5 SoCs
This patch adds CONFIG_ARCH_EXYNOS5 and CONFIG_SOC_EXYNOS5250
for supporting EXYNOS5250 SoC and allows supporting EXYNOS4
and EXYNOS5 together.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:35:15 -07:00
Kukjin Kim
e9bba61522 ARM: EXYNOS: add support get_core_count() for EXYNOS5250
The EXYNOS5250 has two Cortex-A15 cores and there's no
need to call scu_enable() in platform_smp_prepare_cpus()
because Cortex-A15 has no regarding scu register which
can be used for getting number of cores.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:35:15 -07:00
Eunki Kim
330c90a54c ARM: EXYNOS: support EINT for EXYNOS4 and EXYNOS5
The GPIOs of EXYNOS4 and EXYNOS5 are changed to use
ioremap instead of static mapping. It alse causes the
change of external interrupt IO mapping. This patch
changes EXYNOS4 to EXYNOS for common use and changes
EINT_x macros for supporting dynamic IO mapping.

Signed-off-by: Eunki Kim <eunki_kim@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:35:14 -07:00
Kukjin Kim
bb19a7513d ARM: EXYNOS: add interrupt definitions for EXYNOS5250
This patch adds the interrupt definitions for EXYNOS5250 at
<mach/irqs.h> file and it is needed for EXYNOS5250 SoC.
As a note, for single zImage of EXYNOS4 and EXYNOS5, prefix
of EXYNOS4_ and EXYNOS5_ has been added.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:35:04 -07:00
Jussi Kivilinna
0b95ec56ae crypto: camellia - add assembler implementation for x86_64
Patch adds x86_64 assembler implementation of Camellia block cipher. Two set of
functions are provided. First set is regular 'one-block at time' encrypt/decrypt
functions. Second is 'two-block at time' functions that gain performance increase
on out-of-order CPUs. Performance of 2-way functions should be equal to 1-way
functions with in-order CPUs.

Patch has been tested with tcrypt and automated filesystem tests.

Tcrypt benchmark results:

AMD Phenom II 1055T (fam:16, model:10):

camellia-asm vs camellia_generic:
128bit key:                                             (lrw:256bit)    (xts:256bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.27x   1.22x   1.30x   1.42x   1.30x   1.34x   1.19x   1.05x   1.23x   1.24x
64B     1.74x   1.79x   1.43x   1.87x   1.81x   1.87x   1.48x   1.38x   1.55x   1.62x
256B    1.90x   1.87x   1.43x   1.94x   1.94x   1.95x   1.63x   1.62x   1.67x   1.70x
1024B   1.96x   1.93x   1.43x   1.95x   1.98x   2.01x   1.67x   1.69x   1.74x   1.80x
8192B   1.96x   1.96x   1.39x   1.93x   2.01x   2.03x   1.72x   1.64x   1.71x   1.76x

256bit key:                                             (lrw:384bit)    (xts:512bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.23x   1.23x   1.33x   1.39x   1.34x   1.38x   1.04x   1.18x   1.21x   1.29x
64B     1.72x   1.69x   1.42x   1.78x   1.81x   1.89x   1.57x   1.52x   1.56x   1.65x
256B    1.85x   1.88x   1.42x   1.86x   1.93x   1.96x   1.69x   1.65x   1.70x   1.75x
1024B   1.88x   1.86x   1.45x   1.95x   1.96x   1.95x   1.77x   1.71x   1.77x   1.78x
8192B   1.91x   1.86x   1.42x   1.91x   2.03x   1.98x   1.73x   1.71x   1.78x   1.76x

camellia-asm vs aes-asm (8kB block):
         128bit  256bit
ecb-enc  1.15x   1.22x
ecb-dec  1.16x   1.16x
cbc-enc  0.85x   0.90x
cbc-dec  1.20x   1.23x
ctr-enc  1.28x   1.30x
ctr-dec  1.27x   1.28x
lrw-enc  1.12x   1.16x
lrw-dec  1.08x   1.10x
xts-enc  1.11x   1.15x
xts-dec  1.14x   1.15x

Intel Core2 T8100 (fam:6, model:23, step:6):

camellia-asm vs camellia_generic:
128bit key:                                             (lrw:256bit)    (xts:256bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.10x   1.12x   1.14x   1.16x   1.16x   1.15x   1.02x   1.02x   1.08x   1.08x
64B     1.61x   1.60x   1.17x   1.68x   1.67x   1.66x   1.43x   1.42x   1.44x   1.42x
256B    1.65x   1.73x   1.17x   1.77x   1.81x   1.80x   1.54x   1.53x   1.58x   1.54x
1024B   1.76x   1.74x   1.18x   1.80x   1.85x   1.85x   1.60x   1.59x   1.65x   1.60x
8192B   1.77x   1.75x   1.19x   1.81x   1.85x   1.86x   1.63x   1.61x   1.66x   1.62x

256bit key:                                             (lrw:384bit)    (xts:512bit)
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
16B     1.10x   1.07x   1.13x   1.16x   1.11x   1.16x   1.03x   1.02x   1.08x   1.07x
64B     1.61x   1.62x   1.15x   1.66x   1.63x   1.68x   1.47x   1.46x   1.47x   1.44x
256B    1.71x   1.70x   1.16x   1.75x   1.69x   1.79x   1.58x   1.57x   1.59x   1.55x
1024B   1.78x   1.72x   1.17x   1.75x   1.80x   1.80x   1.63x   1.62x   1.65x   1.62x
8192B   1.76x   1.73x   1.17x   1.78x   1.80x   1.81x   1.64x   1.62x   1.68x   1.64x

camellia-asm vs aes-asm (8kB block):
         128bit  256bit
ecb-enc  1.17x   1.21x
ecb-dec  1.17x   1.20x
cbc-enc  0.80x   0.82x
cbc-dec  1.22x   1.24x
ctr-enc  1.25x   1.26x
ctr-dec  1.25x   1.26x
lrw-enc  1.14x   1.18x
lrw-dec  1.13x   1.17x
xts-enc  1.14x   1.18x
xts-dec  1.14x   1.17x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-03-14 17:25:56 +08:00
Kukjin Kim
94c7ca71c4 ARM: EXYNOS: add support for EXYNOS5250 SoC
This patch add support for EXYNOS5250 SoC has two Cortex-A15 cores.
Since actually, most codes in mach-exynos/ are used commonly for
EXYNOS4 and EXYNOS5 the EXYNOS5/EXYNOS5250 has been implemented
in mach-exynos/.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:13:06 -07:00
Kukjin Kim
171c067c1a ARM: EXYNOS: add support uart for EXYNOS4 and EXYNOS5
Actually, the base address of uart is different between EXYNOS4
and EXYNOS5 and this patch enables to support uart for EXYNOS4
and EXYNOS5 SoCs at runtime.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:13:05 -07:00
Kukjin Kim
b67545fd9b ARM: EXYNOS: add initial setup-i2c0 for EXYNOS5
In all of Samsung platform, the setup-i2c0.c file for I2C channel 0
is always compiled. So when supporting new SoC,it should be updated
for it. Since EXYNOS5 GPIO will be supported after this, there is no
setup gpio in there now. It will be implemented with that, of course.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:13:04 -07:00
Kukjin Kim
87b3c6ef1d ARM: EXYNOS: add clock part for EXYNOS5250 SoC
This patch adds clock-exynos5.c for EXYNOS5250 now
and that can be used for other EXYNOS5 SoCs later.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:13:03 -07:00
Kukjin Kim
920f488016 ARM: EXYNOS: use exynos_init_uarts() instead of exynos4_init_uarts()
Since exynos4_init_uarts() can be used for EXYNOS5 SoCs,
this patch changes the name of function to exynos_init_uarts().

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:13:03 -07:00
Kukjin Kim
906c789c64 ARM: EXYNOS: to declare static for mach-exynos/common.c
According to commit cc511b8d84 ("ARM: 7257/1: EXYNOS: introduce
arch/arm/mach-exynos/common.[ch]"), we don't need to declare extern
for exynos4_map_io(), exynos4_init_clocks(), exynos4_init_uarts(),
and exynos_init(). And the exynos4210_register_clocks() and
exynos4212_register_clocks depend on each SoC not ARCH_EXYNOS4.
So this patch fixed above.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:13:02 -07:00
Tushar Behera
7902546652 ARM: EXYNOS: Add clkdev lookup entry for lcd clock
The framebuffer driver needs the clock named 'lcd' as its bus
clock but the equivalent clock on Exynos4 is named as 'fimd'.
Hence, create a clkdev lookup entry with the name 'lcd' that
references the 'fimd' clock.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
[kgene.kim@samsung.com: rebased on top of latest samsung tree]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-14 02:13:01 -07:00
Paul Parsons
63ecf0a9b5 pxa/hx4700: Remove pcmcia platform_device structure
The existing pcmcia platform_device structure is not used and is not needed by
the pending hx4700 PCMCIA/CF support. So let's remove it.

Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Acked-by: Philipp Zabel <philipp.zabel@gmail.com>
signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-03-14 16:54:11 +08:00
Daniel J Blueman
fa63030e9c x86/platform: Move APIC ID validity check into platform APIC code
Move APIC ID validity check into platform APIC code, so it can
be overridden when needed. For NumaChip systems, always trust
MADT, as it's constructed with high APIC IDs.

Behaviour verifies on standard x86 systems and on NumaChip
systems with this, and compile-tested with allyesconfig.

Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Reviewed-by: Steffen Persvold <sp@numascale.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1331709454-27966-1-git-send-email-daniel@numascale-asia.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-14 09:49:48 +01:00
Ingo Molnar
c96a987669 Merge tag 'v3.3-rc7' into x86/platform
Merge reason: Update to the almost-final v3.3 kernel.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-14 09:48:16 +01:00
Paul Parsons
cd419cf922 ARM: pxa/hx4700: Reduce sleep mode battery discharge by 35%
Drive the two Bluetooth UART output GPIOs (GPIO43_BTUART_TXD, GPIO45_BTUART_RTS)
LOW during sleep mode instead of HIGH. This reduces sleep mode battery discharge
from approximately 46 mA to approximately 30 mA.

Signed-off-by: Oliver Winker <oliver@oli1170.net>
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-03-14 16:46:13 +08:00
Paul Parsons
95a50cab1d ARM: pxa/hx4700: Remove unwanted request for GPIO105
GPIO105 (nIR_ON) is requested twice: first in gpio_request_array(), then in
pxa_irda_probe(). Consequently the second request fails with EBUSY:

pxa2xx-ir: probe of pxa2xx-ir failed with error -16

This patch removes the first request, allowing pxa_irda_probe() to succeed.

Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-03-14 16:45:24 +08:00
Ingo Molnar
ea281a9eba Merge tag 'mce-for-tip' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/mce
Apply two miscellaneous MCE fixes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-14 07:44:48 +01:00
Ingo Molnar
cd593accdc Merge tag 'v3.3-rc7' into x86/mce
Merge reason: Update from an ancient -rc1 base to an almost-final stable kernel.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-14 07:44:11 +01:00
Srikar Dronamraju
0326f5a94d uprobes/core: Handle breakpoint and singlestep exceptions
Uprobes uses exception notifiers to get to know if a thread hit
a breakpoint or a singlestep exception.

When a thread hits a uprobe or is singlestepping post a uprobe
hit, the uprobe exception notifier sets its TIF_UPROBE bit,
which will then be checked on its return to userspace path
(do_notify_resume() ->uprobe_notify_resume()), where the
consumers handlers are run (in task context) based on the
defined filters.

Uprobe hits are thread specific and hence we need to maintain
information about if a task hit a uprobe, what uprobe was hit,
the slot where the original instruction was copied for xol so
that it can be singlestepped with appropriate fixups.

In some cases, special care is needed for instructions that are
executed out of line (xol). These are architecture specific
artefacts, such as handling RIP relative instructions on x86_64.

Since the instruction at which the uprobe was inserted is
executed out of line, architecture specific fixups are added so
that the thread continues normal execution in the presence of a
uprobe.

Postpone the signals until we execute the probed insn.
post_xol() path does a recalc_sigpending() before return to
user-mode, this ensures the signal can't be lost.

Uprobes relies on DIE_DEBUG notification to notify if a
singlestep is complete.

Adds x86 specific uprobe exception notifiers and appropriate
hooks needed to determine a uprobe hit and subsequent post
processing.

Add requisite x86 fixups for xol for uprobes. Specific cases
needing fixups include relative jumps (x86_64), calls, etc.

Where possible, we check and skip singlestepping the
breakpointed instructions. For now we skip single byte as well
as few multibyte nop instructions. However this can be extended
to other instructions too.

Credits to Oleg Nesterov for suggestions/patches related to
signal, breakpoint, singlestep handling code.

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@linux.vnet.ibm.com>
Cc: Linux-mm <linux-mm@kvack.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20120313180011.29771.89027.sendpatchset@srdronam.in.ibm.com
[ Performed various cleanliness edits ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-14 07:41:36 +01:00
H. Peter Anvin
bb6fa8b275 x32: Fix stupid ia32/x32 inversion in the siginfo format
Fix a stray ! which flipped the sense if we were generating a signal
frame for ia32 vs. x32.

Introduced in:

e7084fd5 x32: Switch to a 64-bit clock_t

Reported-by: H. J. Lu <hjl.tools@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Gregory M. Lueck <gregory.m.lueck@intel.com>
Link: http://lkml.kernel.org/r/1329696488-16970-1-git-send-email-hpa@zytor.com
2012-03-13 22:44:41 -07:00
Rob Herring
a2a47ca366 ARM: __io abuse cleanup
Several platforms incorrectly use __io() for casting to 'void __iomem *'.
This converts all of those uses to use the common IOMEM macro.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-sh@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-03-13 21:25:21 -05:00
Rob Herring
6f6f6a7029 ARM: create a common IOMEM definition
Several platforms create IOMEM defines for casting to 'void __iomem *',
and other platforms are incorrectly using __io() macro for the same
purpose. This creates a common definition and removes all the platform
specific versions. Rather than try to make linux/io.h and asm/io.h
assembly safe, the assembly version of IOMEM is moved into
asm/assembler.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Cc: Colin Cross <ccross@android.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-03-13 21:22:09 -05:00
David S. Miller
e0adb9902f sparc32: Add -Av8 to assembler command line.
Newer version of binutils are more strict about specifying the
correct options to enable certain classes of instructions.

The sparc32 build is done for v7 in order to support sun4c systems
which lack hardware integer multiply and divide instructions.

So we have to pass -Av8 when building the assembler routines that
use these instructions and get patched into the kernel when we find
out that we have a v8 capable cpu.

Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-13 18:19:51 -07:00
Ryan Mallon
a6de3df4f1 ep93xx: Remove unnecessary includes of ep93xx-regs.h
Remove the include of ep93xx-regs.h from files which no longer need
it, notably include/mach/hardware.h.

Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Hartley Sweeten <hsweeten@visionengravers.com>
2012-03-14 11:43:13 +11:00
Ryan Mallon
9aeec63e04 ep93xx: Move EP93XX_SYSCON defines to SoC private header
The EP93XX_SYSCON defines are now no longer needed outside of the
EP93xx SoC core code, so they can be moved to a private header.

Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Hartley Sweeten <hsweeten@visionengravers.com>
2012-03-14 11:43:11 +11:00
Ryan Mallon
c444dc0765 ep93xx: Move crunch code to mach-ep93xx directory
The crunch code in arch/arm/kernel is specific to the EP93xx. Move it
to the mach-ep93xx directory. This removes the need for the
EP93XX_SYSCON defines to be exported to arch/arm/kernel.

Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Hartley Sweeten <hsweeten@visionengravers.com>
2012-03-14 11:43:10 +11:00
Ryan Mallon
999c53fb22 ep93xx: Make syscon access functions private to SoC
The syscon access functions are no longer used outside of the core
EP93xx code. Move their definitions into the SoC code.

Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Hartley Sweeten <hsweeten@visionengravers.com>
2012-03-14 11:43:06 +11:00