Commit Graph

311022 Commits

Author SHA1 Message Date
Rafael J. Wysocki
93bcfdc565 Merge branch 'renesas-r8a7740' into renesas-armadillo
* renesas-r8a7740:
  ARM: shmobile: r8a7740: add A4LC pm domain support
  ARM: shmobile: r8a7740: add A3SP pm domain support
  ARM: shmobile: r8a7740: add A4S pm domain support
  ARM: shmobile: r8a7740: fixup: MSEL1CR 7bit control
  ARM: shmobile: soc-core: add R-mobile PM domain common APIs
  ARM: mach-shmobile: Convert sh_clk_mstp32_register to sh_clk_mstp_register
2012-07-06 20:42:44 +02:00
Kuninori Morimoto
a330ce3cda ARM: shmobile: r8a7740: add A4LC pm domain support
This patch adds basic A4LC pm domain support.
Now, below devices can be controled by PM

MERAM, LCDC, VOU, ICBS, SDENC-Link

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-06 20:40:17 +02:00
Kuninori Morimoto
802a5639aa ARM: shmobile: r8a7740: add A3SP pm domain support
This patch adds basic A3SP pm domain support.
Now, below devices can be controled by PM

DMAC1/2/3, IPMMU, DDM, FLCTL, SYS-HPB, BBIF1, MSIOF1/2,
SCIFA,SCIFB, IIC1, IrDA, USBH, USBDMAC, SDHI0/1/2, TPU,
DREQPAK (Sys),  MMCIF, RSPI, SIM, USBF

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-06 20:40:17 +02:00
Kuninori Morimoto
8459293c27 ARM: shmobile: r8a7740: add A4S pm domain support
This patch adds basic A4S pm domain support.
Now, below devices can be controled by PM

Common-SHwy, Common-HPB, BSC, MFI, MMFROM, HS-SHwy,
SYS-HPB, INTCA, DBSC, DDRPHY (Logic),
ATAPI, GbEther, AXI-bus

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-06 20:40:17 +02:00
Kuninori Morimoto
444c5ed8d7 ARM: shmobile: r8a7740: fixup: MSEL1CR 7bit control
MSEL1CR 7bit selects IRQ7 source pin which was
VBUS pin or A21/MSIOF0_RSYNC/MSIOF1_TSYNC pin.
But current pfc-r8a7740 MSEL1CR 7bit setting was wrong.
This patch fix it up

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-06 20:40:16 +02:00
Rafael J. Wysocki
2f7d41217b Merge branch 'renesas-soc-core' into renesas-r8a7740
* renesas-soc-core:
  ARM: shmobile: soc-core: add R-mobile PM domain common APIs
  ARM: mach-shmobile: Convert sh_clk_mstp32_register to sh_clk_mstp_register

Conflicts:
	arch/arm/mach-shmobile/clock-r8a7740.c
2012-07-06 20:39:54 +02:00
Kuninori Morimoto
8f45b112fc ARM: shmobile: soc-core: add R-mobile PM domain common APIs
This patch adds Renesas R-mobile series common PM domain APIs.
R-mobile CPU can use/switch this API

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-06 20:33:57 +02:00
Nobuhiro Iwamatsu
64e9de2f85 ARM: mach-shmobile: Convert sh_clk_mstp32_register to sh_clk_mstp_register
sh_clk_mstp32_register is deprecated. This convert to sh_clk_mstp_register.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-02 23:41:34 +02:00
Guennadi Liakhovetski
f65ad7e36c ARM: mach-shmobile: add fixed voltage regulators to armadillo800eva
On armadillo800eva provide a 3.3V supply for its SD/MMC-card interfaces.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 22:44:45 +02:00
Rafael J. Wysocki
8c8fb1361a Merge branch 'renesas-board-common' into renesas-armadillo
* renesas-board-common:
  regulator: extend the fixed dummy voltage regulator to accept voltage
  regulator: support multiple dummy fixed regulators
2012-06-30 22:42:11 +02:00
Rafael J. Wysocki
21503a86db Merge tag 'topic/fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into renesas-board-common
Several following board changes depend on this branch.
2012-06-30 22:23:24 +02:00
Kuninori Morimoto
a01366b4b5 ARM: shmobile: use common extra gpio functions on armadillo800eva
This patch switch over to use common extra gpio method,
and reduced a waste of code on SH-ARM.

But these functions should be replaced by correct
gpio function in the future.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:24:53 +02:00
Kuninori Morimoto
f7e566fa26 ARM: shmobile: armadillo800eva: enable DMAEngine on USB
It is possible to reduce CPU load if USB used DMAEngine.
This patch enabled it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:24:53 +02:00
Kuninori Morimoto
95798e350d ARM: shmobile: armadillo800eva: enable DMAEngine on SDHI
It is possible to reduce CPU load if SDHI used DMAEngine.
This patch enabled it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:24:53 +02:00
Kuninori Morimoto
dc7dd5841f ARM: shmobile: armadillo800eva: enable DMAEngine on FSI
It is possible to reduce CPU load if FSI playback used DMAEngine.
This patch enabled it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:24:52 +02:00
Kuninori Morimoto
0676c05e57 ARM: shmobile: armadillo800eva: enable FSI-HDMI sound
This patch enable HDMI sound support on CON3

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:24:52 +02:00
Kuninori Morimoto
5389bf719f ARM: shmobile: armadillo800eva: enable FSI-WM8978 sound
This patch enable sound support on CON11

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:24:51 +02:00
Rafael J. Wysocki
e01fa821b8 Merge branch 'renesas-r8a7740' into renesas-armadillo
* renesas-r8a7740:
  ARM: shmobile: use common DMAEngine definitions on r8a7740
  ARM: shmobile: r8a7740: add DMAEngine support for USB
  ARM: shmobile: r8a7740: add DMAEngine support for SDHI
  ARM: shmobile: r8a7740: add DMAEngine support for FSI
  ARM: shmobile: add common DMAEngine definitions
  ARM: shmobile: add common extra gpio functions
2012-06-30 15:24:35 +02:00
Kuninori Morimoto
d7de938f3d ARM: shmobile: use common DMAEngine definitions on r8a7740
This patch switch over to use common DMAEngine definitions,
and reduced a waste of code.

It is easy to understand if sh_dmae_pdata / sh_dmae_slave_config
settings are used defined value instead of direct value.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:07:31 +02:00
Kuninori Morimoto
dbf382e556 ARM: shmobile: r8a7740: add DMAEngine support for USB
Current shdmac can support USB DMAC on r8a7740.
This support reduce CPU duty when USB access.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:07:31 +02:00
Kuninori Morimoto
cb76eb812e ARM: shmobile: r8a7740: add DMAEngine support for SDHI
Current shdmac can support SDHI DMAC on r8a7740.
This support reduce CPU duty when SDHI access.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:07:30 +02:00
Kuninori Morimoto
643c3307bb ARM: shmobile: r8a7740: add DMAEngine support for FSI
Current shdmac can support FSI DMAC on r8a7740.
This support reduce CPU duty when sound was playback.

This patch is based on v1.0 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:07:30 +02:00
Rafael J. Wysocki
b379c48a31 Merge branch 'renesas-soc-core' into renesas-r8a7740
* renesas-soc-core:
  ARM: shmobile: add common DMAEngine definitions
  ARM: shmobile: add common extra gpio functions
2012-06-30 15:04:01 +02:00
Kuninori Morimoto
5ca1d44f6a ARM: shmobile: add common DMAEngine definitions
Current shmobile have DMAEngine specific settings on each CPU code,
but SH-ARM DMAC use same value.

This patch adds new dma-register.h header to share definitions
and reduce a waste of code on SH-ARM architecture.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:03:16 +02:00
Kuninori Morimoto
4f3d7f65e9 ARM: shmobile: add common extra gpio functions
Current gpio frame work doesn't have the method to control
just pull up/down/free, but some SH-ARM boards need such kind of operation.
This patch adds common extra gpio functions for SH-ARM.

But these functions should be replaced by correct
gpio function in the future.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-30 15:03:16 +02:00
Kuninori Morimoto
3760e79450 ARM: shmobile: armadillo800eva: enable camera
This patch enable camera support on CON1

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-21 11:59:43 +02:00
Kuninori Morimoto
910c14d0b8 ARM: shmobile: armadillo800eva: enable HDMI
This patch enable HDMI support on CON3.
And removed unnecessary CONFIG_SYSFS_DEPRECATED_xxx config.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 12:35:27 +02:00
Kuninori Morimoto
147d1ffdc2 ARM: shmobile: r8a7740: add FSI-B (for HDMI) GPIO support
In order to enable FSI-B selection from platform board,
this patch adds its interface to GPIO framework.

This patch is based on v1.0 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 12:27:50 +02:00
Kuninori Morimoto
69efac9a8b ARM: shmobile: r8a7740: add FSI parent clock support
r8a7740 FSI can select its parent clock,
and its selection is dependent on platform board.

In order to enable FSI parent selection from platform board,
this patch adds its interface to clock framework.

This patch is based on v1.0 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 12:27:49 +02:00
Kuninori Morimoto
ad9f1721c1 ARM: shmobile: r8a7740: add CEU clock support
It is required from sh_mobile_ceu_camera driver.
This patch is based on v1.0 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 12:27:49 +02:00
Kuninori Morimoto
d49679e592 ARM: shmobile: r8a7740: add MERAM work-around
r8a7740 chip has lasting errata on MERAM buffer, and this patch adds
its work-around on setup-r8a7740.c
It solved CEU/VIO6C/2D-DMAC/VCP1/VPU5F/JPU/DISP memroy access error.

But MERAM driver can't control this issue,
since this work-around requires access to non-MERAM register address.
So, This it will be called as board specific code at this point.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 12:27:48 +02:00
Kuninori Morimoto
e2dcd461a7 ARM: shmobile: r8a7740: add HDMI GPIO support
In order to enable HDMI GPIO selection from platform board,
this patch adds its interface to GPIO framework.

This patch is based on v1.0 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 12:27:48 +02:00
Kuninori Morimoto
c6750acb3b ARM: shmobile: r8a7740: add HDMI clock support
It is required from sh_mobile_hdmi driver.
This patch is based on v1.0 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 12:27:47 +02:00
Kuninori Morimoto
7d7136cabc ARM: shmobile: r8a7740: add HDMI interrupt support
It is required from sh_mobile_hdmi driver.
This patch is based on v1.0 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 12:27:47 +02:00
Guennadi Liakhovetski
56fb523f12 ARM: mach-shmobile: add missing GPIO IRQ configuration on mackerel
SDHI0 card-detect GPIO IRQ on mackarel currently works, because it is the
default configuration of IRQ26. However, we should not rely on this and
should configure the function explicitly.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 12:15:59 +02:00
Nobuhiro Iwamatsu
6ae42bb22b ARM: mach-shmobile: Fix build when SMP is enabled and EMEV2 is not enabled
Build failed, when SMP is enabled and EMEV2 is not enabled.

arch/arm/mach-shmobile/built-in.o: In function `shmobile_platform_cpu_kill':
/home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:62: undefined reference to `emev2_platform_cpu_kill'
arch/arm/mach-shmobile/built-in.o: In function `shmobile_smp_get_core_count':
/home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:39: undefined reference to `emev2_get_core_count'
arch/arm/mach-shmobile/built-in.o: In function `shmobile_smp_prepare_cpus':
/home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:53: undefined reference to `emev2_smp_prepare_cpus'
arch/arm/mach-shmobile/built-in.o: In function `platform_secondary_init':
/home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:78: undefined reference to `emev2_secondary_init'
arch/arm/mach-shmobile/built-in.o: In function `boot_secondary':
/home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:90: undefined reference to `emev2_boot_secondary

This is the cause by when EMEV2 is disabled, that the check by OF of EMEV2 is
performed in platsmp.c.
This patch revise what the function about EMEV2 may not be used in this file,
when EMEV2 is not enabled.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 11:30:41 +02:00
Kuninori Morimoto
4d6344f3c9 ARM: shmobile: sh7372: bugfix: chclr_offset base
chclr_write() will use (chan_reg + chclr_offset).
In sh7372 case, DMA1CHCLR is started from 0xfe008220,
and chan_reg is started from 0xfe008020 (= sh7372_dmae0_resources).
Thus, chclr_offset should be (0x220 - 0x20) instead of 0x220.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 11:30:32 +02:00
Kuninori Morimoto
32103c7ba7 ARM: shmobile: sh73a0: bugfix: SY-DMAC number
681e1b3eeb
(ARM: mach-shmobile: sh73a0 DMA Engine support for SY-DMAC)
adds SY-DMAC, but it is 218, not 318

This patch is based on v2.0 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-06-20 11:30:25 +02:00
Guennadi Liakhovetski
15719ccc27 regulator: extend the fixed dummy voltage regulator to accept voltage
Trivially extend the regulator_register_always_on() helper function to be
even more useful by adding a voltage parameter to it.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-19 23:22:30 +01:00
Guennadi Liakhovetski
dfad84aeab regulator: support multiple dummy fixed regulators
Currently regulator_register_fixed() uses a constant name to register a
fixed dummy regulator. This is sufficient in principle, since there is no
reason to register multiple such regulators. The user can simply supply all
consumers in one array and use it to initialise such a regulator. However,
in some cases it can be convenient to register multiple such regulators.
This is also a prerequisite for the upcoming patch, that will add a voltage
parameter to this function. The original function is provided as a wrapper
macro.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-19 23:22:30 +01:00
Linus Torvalds
485802a6c5 Linux 3.5-rc3 2012-06-16 17:25:17 -07:00
Linus Torvalds
d865983292 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs compile warning fixes from Chris Mason.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: cast devid to unsigned long long for printk %llu
  Btrfs: init old_generation in get_old_root
2012-06-16 17:01:41 -07:00
Linus Torvalds
c458175eb6 Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile update from Chris Metcalf:
 "This one-line bug fix unbreaks glibc robust mutexes (among other
  things no doubt), from code merged in during the 3.5 merge window but
  which we had been running internally at Tilera for almost a year."

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  tile: fix bug in get_user() for 4-byte values
2012-06-16 17:00:15 -07:00
Linus Torvalds
88c144b12a fbdev fixes for 3.5
- two fixes for s3c-fb by Jingoo Han
   (including a fix for a potential division by zero)
 - a couple of randconfig fixes by Arnd Bergmann
 - a cleanup for bfin_adv7393fb by Emil Goode
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Merge tag 'fbdev-fixes-for-3.5-1' of git://github.com/schandinat/linux-2.6

Pull fbdev fixes from Florian Tobias Schandinat:

 - two fixes for s3c-fb by Jingoo Han (including a fix for a potential
   division by zero)

 - a couple of randconfig fixes by Arnd Bergmann

 - a cleanup for bfin_adv7393fb by Emil Goode

* tag 'fbdev-fixes-for-3.5-1' of git://github.com/schandinat/linux-2.6:
  video: s3c-fb: fix possible division by zero in s3c_fb_calc_pixclk
  video: s3c-fb: clear SHADOWCON register when clearing hardware window registers
  drivers/tosa: driver needs I2C and SPI to compile
  drivers/savagefb: use mdelay instead of udelay
  video/console: automatically select a font
  video/ili9320: do not mark exported functions __devexit
  drivers/video: use correct __devexit_p annotation
  video: bfin_adv7393fb: Convert to kstrtouint_from_user
2012-06-16 16:59:05 -07:00
Chris Metcalf
6699c8cda3 tile: fix bug in get_user() for 4-byte values
The definition of 32-bit values in the 64-bit tilegx architecture is that
they should be sign-extended regardless of whether they are considered
signed or unsigned by the compiler.  Accordingly, we need to use an
"ld4s" rather than "ld4u" to load and sign-extend for get_user().

This fixes glibc bug 14238 (see http://sourceware.org/bugzilla),
introduced during the 3.5 merge window.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-06-16 16:56:13 -04:00
Hugh Dickins
9b15b817f3 swap: fix shmem swapping when more than 8 areas
Minchan Kim reports that when a system has many swap areas, and tmpfs
swaps out to the ninth or more, shmem_getpage_gfp()'s attempts to read
back the page cannot locate it, and the read fails with -ENOMEM.

Whoops.  Yes, I blindly followed read_swap_header()'s pte_to_swp_entry(
swp_entry_to_pte()) technique for determining maximum usable swap
offset, without stopping to realize that that actually depends upon the
pte swap encoding shifting swap offset to the higher bits and truncating
it there.  Whereas our radix_tree swap encoding leaves offset in the
lower bits: it's swap "type" (that is, index of swap area) that was
truncated.

Fix it by reducing the SWP_TYPE_SHIFT() in swapops.h, and removing the
broken radix_to_swp_entry(swp_to_radix_entry()) from read_swap_header().

This does not reduce the usable size of a swap area any further, it
leaves it as claimed when making the original commit: no change from 3.0
on x86_64, nor on i386 without PAE; but 3.0's 512GB is reduced to 128GB
per swapfile on i386 with PAE.  It's not a change I would have risked
five years ago, but with x86_64 supported for ten years, I believe it's
appropriate now.

Hmm, and what if some architecture implements its swap pte with offset
encoded below type? That would equally break the maximum usable swap
offset check.  Happily, they all follow the same tradition of encoding
offset above type, but I'll prepare a check on that for next.

Reported-and-Reviewed-and-Tested-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@vger.kernel.org [3.1, 3.2, 3.3, 3.4]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-06-15 21:48:14 -07:00
Linus Torvalds
a2c2df8672 SCSI fixes on 20120614
This is a couple of minor fixes, one for a preempt warning in the mpt2sas
 driver and one is a config failure with the new sd async domain.
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a couple of minor fixes, one for a preempt warning in the
  mpt2sas driver and one is a config failure with the new sd async
  domain."

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] Fix sd_probe_domain config problem
  [SCSI] mpt2sas: Fix unsafe using smp_processor_id() in preemptible
2012-06-15 17:39:32 -07:00
Linus Torvalds
873b779d99 NFS client bugfixes for Linux 3.5
Highlights include:
 
  - Fix a couple of mount regressions due to the recent cleanups.
  - Fix an Oops in the open recovery code
  - Fix an rpc_pipefs upcall hang that results from some of the
    net namespace work from 3.4.x (stable kernel candidate).
  - Fix a couple of write and o_direct regressions that were found
    at last weeks Bakeathon testing event in Ann Arbor.
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Merge tag 'nfs-for-3.5-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

   - Fix a couple of mount regressions due to the recent cleanups.
   - Fix an Oops in the open recovery code
   - Fix an rpc_pipefs upcall hang that results from some of the net
     namespace work from 3.4.x (stable kernel candidate).
   - Fix a couple of write and o_direct regressions that were found at
     last weeks Bakeathon testing event in Ann Arbor."

* tag 'nfs-for-3.5-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: add an endian notation for sparse
  NFSv4.1: integer overflow in decode_cb_sequence_args()
  rpc_pipefs: allow rpc_purge_list to take a NULL waitq pointer
  NFSv4 do not send an empty SETATTR compound
  NFSv2: EOF incorrectly set on short read
  NFS: Use the NFS_DEFAULT_VERSION for v2 and v3 mounts
  NFS: fix directio refcount bug on commit
  NFSv4: Fix unnecessary delegation returns in nfs4_do_open
  NFSv4.1: Convert another trivial printk into a dprintk
  NFS4: Fix open bug when pnfs module blacklisted
  NFS: Remove incorrect BUG_ON in nfs_found_client
  NFS: Map minor mismatch error to protocol not support error.
  NFS: Fix a commit bug
  NFS4: Set parsed mount data version to 4
  NFSv4.1: Ensure we clear session state flags after a session creation
  NFSv4.1: Convert a trivial printk into a dprintk
  NFSv4: Fix up decode_attr_mdsthreshold
  NFSv4: Fix an Oops in the open recovery code
  NFSv4.1: Fix a request leak on the back channel
2012-06-15 17:37:23 -07:00
Linus Torvalds
56b880e2e3 Merge branch 'fixes-for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull DMA-mapping fixes from Marek Szyprowski:
 "A set of minor fixes for dma-mapping code (ARM and x86) required for
  Contiguous Memory Allocator (CMA) patches merged in v3.5-rc1."

* 'fixes-for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  x86: dma-mapping: fix broken allocation when dma_mask has been provided
  ARM: dma-mapping: fix debug messages in dmabounce code
  ARM: mm: fix type of the arm_dma_limit global variable
  ARM: dma-mapping: Add missing static storage class specifier
2012-06-15 17:35:01 -07:00
Linus Torvalds
1043e3becf PowerPC fix for Linus
Just one commit, and a one-liner at that, but an important one;
 without it hard_irq_disable() does nothing on powerpc.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

Pull PowerPC fix from Paul Mackerras:
 "Just one commit, and a one-liner at that, but an important one;
  without it hard_irq_disable() does nothing on powerpc."

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  Make hard_irq_disable() actually hard-disable interrupts
2012-06-15 17:28:20 -07:00