platform/kernel/linux-amlogic.git
11 years agopowerpc/fsl-pci: don't unmap the PCI SoC controller registers in setup_pci_atmu
Kevin Hao [Sat, 13 Apr 2013 07:14:41 +0000 (15:14 +0800)]
powerpc/fsl-pci: don't unmap the PCI SoC controller registers in setup_pci_atmu

In patch 34642bbb (powerpc/fsl-pci: Keep PCI SoC controller registers in
pci_controller) we choose to keep the map of the PCI SoC controller
registers. But we missed to delete the unmap in setup_pci_atmu
function. This will cause the following call trace once we access
the PCI SoC controller registers later.

Unable to handle kernel paging request for data at address 0x8000080080040f14
Faulting instruction address: 0xc00000000002ea58
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=24 T4240 QDS
Modules linked in:
NIP: c00000000002ea58 LR: c00000000002eaf4 CTR: c00000000002eac0
REGS: c00000017e10b4a0 TRAP: 0300   Not tainted  (3.9.0-rc1-00052-gfa3529f-dirty)
MSR: 0000000080029000 <CE,EE,ME>  CR: 28adbe22  XER: 00000000
SOFTE: 0
DEAR: 8000080080040f14, ESR: 0000000000000000
TASK = c00000017e100000[1] 'swapper/0' THREAD: c00000017e108000 CPU: 2
GPR00: 0000000000000000 c00000017e10b720 c0000000009928d8 c00000017e578e00
GPR04: 0000000000000000 000000000000000c 0000000000000001 c00000017e10bb40
GPR08: 0000000000000000 8000080080040000 0000000000000000 0000000000000016
GPR12: 0000000088adbe22 c00000000fffa800 c000000000001ba0 0000000000000000
GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000008a5b70
GPR24: c0000000008af938 c0000000009a28d8 c0000000009bb5dc c00000017e10bb40
GPR28: c00000017e32a400 c00000017e10bc00 c00000017e32a400 c00000017e578e00
NIP [c00000000002ea58] .fsl_pcie_check_link+0x88/0xf0
LR [c00000000002eaf4] .fsl_indirect_read_config+0x34/0xb0
Call Trace:
[c00000017e10b720] [c00000017e10b7a0] 0xc00000017e10b7a0 (unreliable)
[c00000017e10ba30] [c00000000002eaf4] .fsl_indirect_read_config+0x34/0xb0
[c00000017e10bad0] [c00000000033aa08] .pci_bus_read_config_byte+0x88/0xd0
[c00000017e10bb90] [c00000000088d708] .pci_apply_final_quirks+0x9c/0x18c
[c00000017e10bc40] [c0000000000013dc] .do_one_initcall+0x5c/0x1f0
[c00000017e10bcf0] [c00000000086ebac] .kernel_init_freeable+0x180/0x26c
[c00000017e10bdb0] [c000000000001bbc] .kernel_init+0x1c/0x460
[c00000017e10be30] [c000000000000880] .ret_from_kernel_thread+0x64/0xe4
Instruction dump:
38210310 2b800015 4fdde842 7c600026 5463fffe e8010010 7c0803a6 4e800020
60000000 60000000 e92301d0 7c0004ac <80690f140c030000 4c00012c 38210310
---[ end trace 7a8fe0cbccb7d992 ]---

Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Acked-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/dts: Fix the dts for p1025rdb 36bit
Zhicheng Fan [Mon, 25 Mar 2013 01:23:06 +0000 (09:23 +0800)]
powerpc/dts: Fix the dts for p1025rdb 36bit

Fix the following errors:

Error: p1025rdb.dtsi:326.2-3 label or path, 'qe', not found
Error: p1021si-post.dtsi:242.2-3 label or path, 'qe', not found
FATAL ERROR: Syntax error parsing input tree

Signed-off-by: Zhicheng Fan <B32736@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: Fix MPC8536DS 36-bit device tree
Kumar Gala [Wed, 10 Apr 2013 21:58:28 +0000 (16:58 -0500)]
powerpc/85xx: Fix MPC8536DS 36-bit device tree

The localbus node should be in at 0xfffe05000 not 0xffe05000.  Also
fixed the names of the localbus and pci nodes to reflect the addresses
they are actually at.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: enable Silicon image 3132 PCIe to SATA controller
Roy ZANG [Wed, 10 Apr 2013 22:40:49 +0000 (17:40 -0500)]
powerpc/85xx: enable Silicon image 3132 PCIe to SATA controller

Some 85xx board, for example, P1020RDB-PC has on board silicon image
PCIe to SATA controller and when booting up, the filesystem will auto mount
to the SATA disk. So enable silicon image 3132 pcie to sata controller
by default

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl: Add property for 'era' in SEC dts crypto node
Vakul Garg [Thu, 11 Apr 2013 03:45:23 +0000 (09:15 +0530)]
powerpc/fsl: Add property for 'era' in SEC dts crypto node

The crypto node now contains a new property 'fsl,sec-era'.
This is required so that applications can retrieve era info without
having to be able to read SEC's register space.

Signed-off-by: Vakul Garg <vakul@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl: removed qoriq-sec4.1-0.dtsi.
Vakul Garg [Thu, 11 Apr 2013 03:43:39 +0000 (09:13 +0530)]
powerpc/fsl: removed qoriq-sec4.1-0.dtsi.

Removing qoriq-sec4.1-0.dtsi as it is not used by any soc anymore.

Signed-off-by: Vakul Garg <vakul@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: Update corenet64_smp_defconfig for B4_QDS
Shaveta Leekha [Fri, 5 Apr 2013 06:33:52 +0000 (12:03 +0530)]
powerpc/85xx: Update corenet64_smp_defconfig for B4_QDS

Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Add B4_QDS board support
Shaveta Leekha [Fri, 5 Apr 2013 06:33:51 +0000 (12:03 +0530)]
powerpc/fsl-booke: Add B4_QDS board support

- Add support for B4 board in board file b4_qds.c,
  It is common for B4860, B4420 and B4220QDS as they share same QDS board
- Add B4QDS support in Kconfig and Makefile

B4860QDS is a high-performance computing evaluation, development and
test platform supporting the B4860 QorIQ Power Architecture processor,
with following major features:

    - Four dual-threaded e6500 Power Architecture processors
      organized in one cluster-each core runs up to 1.8 GHz
    - Two DDR3/3L controllers for high-speed memory interface each
      runs at up to 1866.67 MHz
    - CoreNet fabric that fully supports coherency using MESI protocol
      between the e6500 cores, SC3900 FVP cores, memories and
      external interfaces.
    - Data Path Acceleration Architecture having FMAN, QMan, BMan,
      SEC 5.3 and RMAN
    - Large internal cache memory with snooping and stashing capabilities
    - Sixteen 10-GHz SerDes lanes that serve:
        - Two SRIO interfaces. Each supports up to 4 lanes and
          a total of up to 8 lanes
        - Up to 8-lanes Common Public Radio Interface (CPRI) controller
          for glue-less antenna connection
        - Two 10-Gbit Ethernet controllers (10GEC)
        - Six 1G/2.5-Gbit Ethernet controllers for network communications
        - PCI Express controller
        - Debug (Aurora)
    - Various system peripherals

B4420 and B4220 have some differences in comparison to B4860 with fewer
core/clusters(both SC3900 and e6500), fewer DDR controllers,
fewer serdes lanes, fewer SGMII interfaces and reduced target frequencies.

Key differences between B4860 and B4420:
B4420 has:
    - Fewer e6500 cores:
        1 cluster with 2 e6500 cores
    - Fewer SC3900 cores/clusters:
        1 cluster with 2 SC3900 cores per cluster
    - Single DDRC @ 1.6GHz
    - 2 X 4 lane serdes
    - 3 SGMII interfaces
    - no sRIO
    - no 10G

Key differences between B4860 and B4220:
B4220 has:
    - Fewer e6500 cores:
        1 cluster with 1 e6500 core
    - Fewer SC3900 cores/clusters:
        1 cluster with 2 SC3900 cores per cluster
    - Single DDRC @ 1.33GHz
    - 2 X 2 lane serdes
    - 2 SGMII interfaces
    - no sRIO
    - no 10G

Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Add initial B4860QDS and B4420QDS board device tree
Shaveta Leekha [Fri, 5 Apr 2013 06:33:50 +0000 (12:03 +0530)]
powerpc/fsl-booke: Add initial B4860QDS and B4420QDS board device tree

B4860QDS and B4420QDS share same QDS board

* common board features have been added in b4qds.dts
* various board differences are in respective files of B4860 and B4420

Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Add initial silicon device tree files for B4860 and B4420
Shaveta Leekha [Fri, 5 Apr 2013 06:33:49 +0000 (12:03 +0530)]
powerpc/fsl-booke: Add initial silicon device tree files for B4860 and B4420

B4860 and B4420 are similar that share some commonalities

* common features have been added in b4si-pre.dtsi and b4si-post.dtsi
* differences are added in respective silicon files of B4860 and B4420

There are several things missing from the device trees of B4860 and B4420:

* DPAA related nodes (Qman, Bman, Fman, Rman)
* DSP related nodes/information
* serdes, sfp(security fuse processor), thermal,
  gpio, maple, cpri, quad timers nodes

Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Vakul Garg <vakul@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-pci Make PCIe hotplug work with Freescale PCIe controllers
Rojhalat Ibrahim [Mon, 8 Apr 2013 08:15:28 +0000 (10:15 +0200)]
powerpc/fsl-pci Make PCIe hotplug work with Freescale PCIe controllers

Up to now the PCIe link status on Freescale PCIe controllers was only
checked once at boot time. So hotplug did not work. With this patch the
link status is checked on every config read. PCIe devices not present at
boot time are found after doing 'echo 1 >/sys/bus/pci/rescan'.

Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-pci: Keep PCI SoC controller registers in pci_controller
Kumar Gala [Wed, 13 Mar 2013 19:07:15 +0000 (14:07 -0500)]
powerpc/fsl-pci: Keep PCI SoC controller registers in pci_controller

Move to keeping the SoC registers that control and config the PCI
controllers on FSL SoCs in the pci_controller struct.  This allows us to
not need to ioremap() the registers in multiple different places that
use them.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc: remove "config MPC10X_OPENPIC"
Paul Bolle [Mon, 8 Apr 2013 19:35:11 +0000 (21:35 +0200)]
powerpc: remove "config MPC10X_OPENPIC"

The last users of Kconfig symbol MPC10X_OPENPIC were removed in v2.6.27.
Its Kconfig entry can be removed now.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Minor fixes to T4240 Si device tree
Kumar Gala [Fri, 5 Apr 2013 14:15:01 +0000 (09:15 -0500)]
powerpc/fsl-booke: Minor fixes to T4240 Si device tree

* Fix cpu unit address to match reg
* Update compatible for rcpm & clockgen to be 2.0 instead of 2

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: fix a bug with the parameter of mpic_reset_core()
Chen-Hui Zhao [Wed, 3 Apr 2013 13:09:09 +0000 (21:09 +0800)]
powerpc/85xx: fix a bug with the parameter of mpic_reset_core()

mpic_reset_core() need a logical cpu number instead of physical.

Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-msi: use a different lockclass for the cascade interrupt
Sebastian Andrzej Siewior [Tue, 2 Apr 2013 13:33:36 +0000 (15:33 +0200)]
powerpc/fsl-msi: use a different lockclass for the cascade interrupt

lockdep thinks that it might deadlock because it grabs a lock of the
same class while calling the generic_irq_handler(). This annotation will
inform lockdep that it will not.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: add SEC-5.3 device tree
Shaveta Leekha [Tue, 2 Apr 2013 07:14:34 +0000 (12:44 +0530)]
powerpc/85xx: add SEC-5.3 device tree

Signed-off-by: Vakul Garg <vakul@freescale.com>
Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl_pci: fix 64 bit pci size issue
Roy Zang [Fri, 29 Mar 2013 13:06:17 +0000 (21:06 +0800)]
powerpc/fsl_pci: fix 64 bit pci size issue

The size might be 64 bit, so use ilog2() instead of __ilog2() or
__ilog2_u64().

ilog2() can select 32bit or 64bit function automatically.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: sgy-cts1000 - Remove __dev* attributes
Ben Collins [Mon, 18 Mar 2013 23:19:07 +0000 (19:19 -0400)]
powerpc/85xx: sgy-cts1000 - Remove __dev* attributes

Somehow the driver snuck in with these still in it.

Signed-off-by: Ben Collins <ben.c@servergy.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Update T4240 device config node in device tree
Kumar Gala [Mon, 18 Mar 2013 19:07:13 +0000 (14:07 -0500)]
powerpc/fsl-booke: Update T4240 device config node in device tree

As the T4240 is based on corenet chassis v2.0 spec we update the global
utilities (GUTS) device config compatiable to reflect this.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Update DCSR EPU device tree entries for existing SoCs
Stephen George [Tue, 5 Mar 2013 19:46:56 +0000 (13:46 -0600)]
powerpc/fsl-booke: Update DCSR EPU device tree entries for existing SoCs

Identifies the epu as compatible with Chassis v1 Debug IP.

Signed-off-by: Stephen George <Stephen.George@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Added device tree DCSR entries for T4240 Chassis v2 Debug IP
Stephen George [Tue, 5 Mar 2013 19:44:34 +0000 (13:44 -0600)]
powerpc/fsl-booke: Added device tree DCSR entries for T4240 Chassis v2 Debug IP

Signed-off-by: Stephen George <Stephen.George@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc: add CONFIG(s) require for using flash controller
Prabhakar Kushwaha [Mon, 18 Mar 2013 08:31:23 +0000 (14:01 +0530)]
powerpc: add CONFIG(s) require for using flash controller

Add CONFIG(s) required for NAND and NOR flash controller usage.
It defines MTD, Jffs2 and UBIFS file system required for controllers.

It also enables IFC controller

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/qe: Fix Kconfig enablement of QE_USB support
Kumar Gala [Fri, 15 Mar 2013 16:14:15 +0000 (11:14 -0500)]
powerpc/qe: Fix Kconfig enablement of QE_USB support

Commit 193ab2a6070039e7ee2b9b9bebea754a7c52fd1b changed the USB gadget
Kconfig symbol from USB_GADGET_FSL_QE to USB_FSL_QE, but did not update
the associated symbol name in qe_lib to match.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: Add platform_device declaration to fsl_pci.h
Jia Hongtao [Fri, 15 Mar 2013 06:14:58 +0000 (14:14 +0800)]
powerpc/85xx: Add platform_device declaration to fsl_pci.h

mpc85xx_pci_err_probe(struct platform_device *op) need platform_device
declaration for definition. Otherwise, it will cause compile error if any
files including fsl_pci.h without declaration of platform_device.

Signed-off-by: Jia Hongtao <hongtao.jia@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc: remove "config 8260_PCI9"
Paul Bolle [Thu, 14 Mar 2013 15:14:57 +0000 (16:14 +0100)]
powerpc: remove "config 8260_PCI9"

The last user of Kconfig symbol 8260_PCI9 got removed in release v3.2.
Remove this symbol too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: enable E1000 NIC to mpc85xx_defconfig
Roy Zang [Thu, 14 Mar 2013 15:40:22 +0000 (23:40 +0800)]
powerpc/85xx: enable E1000 NIC to mpc85xx_defconfig

E1000 NIC is a common used Ethernet card. Enable it as default
for mpc85xx platform.

other change is due to make savedefconfig

Reported-by: Fu Jiwei <b36666@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc: Add paravirt idle loop for 64-bit Book-E
Stuart Yoder [Fri, 8 Feb 2013 19:22:56 +0000 (13:22 -0600)]
powerpc: Add paravirt idle loop for 64-bit Book-E

Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: add CONFIG_E1000E to corenet64_smp_defconfig
Scott Wood [Tue, 12 Mar 2013 20:03:41 +0000 (15:03 -0500)]
powerpc/85xx: add CONFIG_E1000E to corenet64_smp_defconfig

This is a commonly used ethernet card, especially with mainline kernels
which lack datapath support.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl: remove the PPC_CLOCK dependency
Tang Yuantian [Tue, 12 Mar 2013 06:43:03 +0000 (14:43 +0800)]
powerpc/fsl: remove the PPC_CLOCK dependency

Config FSL_SOC does not depend on PPC_CLOCK anymore since the following
commit got merged: 93abe8e (clk: add non CONFIG_HAVE_CLK routines)
Config CPM does not use PPC_CLOCK either currently. So remove them.

PPC_CLOCK also keeps Freescale PowerPC archtecture from supporting COMMON_CLK.

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: Reserve a partition of NOR flash for QE ucode firmware
Jiucheng Xu [Tue, 26 Feb 2013 02:33:36 +0000 (10:33 +0800)]
powerpc/85xx: Reserve a partition of NOR flash for QE ucode firmware

Due to the partition of JFFS2 overlaps with QE ucode firmware, So JFFS2
will break QE ucode. Shrink JFFS2's partition to reserve the space of
QE ucode firmware.

Signed-off-by: Jiucheng Xu <Jiucheng.Xu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: Add first usb controller node for Qonverge platforms
Ramneek Mehresh [Thu, 28 Feb 2013 08:46:45 +0000 (14:16 +0530)]
powerpc/85xx: Add first usb controller node for Qonverge platforms

Add first usb controller node for qonverge qoriq platforms like
B4860, etc

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: Update corenet64_smp_defconfig for T4240
Kumar Gala [Fri, 1 Mar 2013 19:36:35 +0000 (13:36 -0600)]
powerpc/85xx: Update corenet64_smp_defconfig for T4240

* Add support for up to 24 cores on T4240 (includes threads)
* Enable AltiVec support (on T4240)
* Add T4240QDS board into build
* Other changes are due to general kernel update of defconfig

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Add initial T4240QDS board support
Kumar Gala [Thu, 5 Jan 2012 17:09:04 +0000 (11:09 -0600)]
powerpc/fsl-booke: Add initial T4240QDS board support

Some minor changes to the common corenet_ds.c code are needed to support
the T4240QDS:
* Add support for "fsl,qoriq-pcie-v3.0" controller
* Bump max # of IRQs to 512 (T4240 supports more interrupts than
  previous SoCs).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Add initial T4240QDS board device tree
Kumar Gala [Sun, 6 Nov 2011 17:51:36 +0000 (11:51 -0600)]
powerpc/fsl-booke: Add initial T4240QDS board device tree

Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Add initial silicon device tree for T4240
Kumar Gala [Wed, 7 Dec 2011 15:08:03 +0000 (09:08 -0600)]
powerpc/fsl-booke: Add initial silicon device tree for T4240

Enable a baseline T4240 SoC to boot.  There are several things missing
from the device trees for T4240:

* Proper PAMU topology information
* DPAA related nodes (Qman, Bman, Fman, Rman, DCE)
* Prefetch Manager
* Thermal monitor unit
* Interlaken

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Vakul Garg <vakul@freescale.com>
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Laurentiu Tudor <Laurentiu.Tudor@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: Add AltiVec support for e6500
Kumar Gala [Fri, 7 Sep 2012 20:57:17 +0000 (15:57 -0500)]
powerpc/85xx: Add AltiVec support for e6500

The e6500 core adds support for AltiVec on a Book-E class processor.
Connect up all the various exception handling code and build config
mechanisms to allow user spaces apps to utilize AltiVec.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/fsl-booke: Support detection of page sizes on e6500
Kumar Gala [Tue, 5 Mar 2013 18:08:32 +0000 (12:08 -0600)]
powerpc/fsl-booke: Support detection of page sizes on e6500

The e6500 core used on T4240 and B4860 SoCs from FSL implements MMUv2 of
the Power Book-E Architecture.  However there are some minor differences
between it and other Book-E implementations.

Add support to parse SPRN_TLB1PS for the variable page sizes supported.
In the future this should be expanded for more page sizes supported on
e6500 as well as other MMU features.

This patch is based on code from Scott Wood.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: Add support for FSL PCIe controller v3.0
Roy ZANG [Fri, 21 Sep 2012 04:12:52 +0000 (04:12 +0000)]
powerpc/85xx: Add support for FSL PCIe controller v3.0

The T4240 utilizes a new PCIe controller block that has some minor
programming model differences from previous versions.

The major one that impacts initialization is how we determine the link
state.  On the 3.x controllers we have a memory mapped SoC register
instead of a PCI config register that reports the link state.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/85xx: Added SEC-5.0 device tree.
Vakul Garg [Fri, 23 Nov 2012 11:06:04 +0000 (05:06 -0600)]
powerpc/85xx: Added SEC-5.0 device tree.

Add device tree for SEC (crypto engine) version 5.0 used on T4240.

Signed-off-by: Vakul Garg <vakul@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc: add missing deo arch category to e500mc/e5500 dts
Stuart Yoder [Tue, 5 Mar 2013 22:39:09 +0000 (16:39 -0600)]
powerpc: add missing deo arch category to e500mc/e5500 dts

Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc/e6500: Add architecture categories for e6500 cores
Stuart Yoder [Tue, 5 Mar 2013 22:39:08 +0000 (16:39 -0600)]
powerpc/e6500: Add architecture categories for e6500 cores

-also define a binding for fsl,eref-* properties

Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
11 years agopowerpc: Set DSCR bit in FSCR setup
Michael Neuling [Mon, 4 Mar 2013 19:45:52 +0000 (19:45 +0000)]
powerpc: Set DSCR bit in FSCR setup

We support DSCR (Data Stream Control Register) so we should make sure we set it
in the FSCR (Facility Status & Control Register) incase some firmwares don't
set it.  If we don't set this, we'll take a facility unavailable exception when
using the DSCR.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agopowerpc: Add DSCR FSCR register bit definition
Michael Neuling [Mon, 4 Mar 2013 19:45:51 +0000 (19:45 +0000)]
powerpc: Add DSCR FSCR register bit definition

This sets the DSCR (Data Stream Control Register) in the FSCR (Facility Status
& Control Register).

Also harmonise TAR (Target Address Register) FSCR bit definition too.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agopowerpc: Fix setting FSCR for HV=0 and on secondary CPUs
Michael Neuling [Mon, 4 Mar 2013 19:45:50 +0000 (19:45 +0000)]
powerpc: Fix setting FSCR for HV=0 and on secondary CPUs

Currently we only set the FSCR (Facility Status and Control Register) when HV=1
but this feature is available when HV=0 also.  This patch sets FSCR when HV=0.

Also, we currently only set the FSCR on the master CPU.  This patch also sets
the FSCR on secondary CPUs.

Signed-off-by: Michael Neuling <mikey@neuling.org>
cc: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agopowerpc: Wireup the kcmp syscall to sys_ni
Tony Breeds [Mon, 4 Mar 2013 15:57:30 +0000 (15:57 +0000)]
powerpc: Wireup the kcmp syscall to sys_ni

Since kmp takes 2 unsigned long args there should be a compat wrapper.
Since one isn't provided I think it's safer just to hook this up to not
implemented.  If we need it later we can do it properly then.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agopowerpc: Remove unused BITOP_LE_SWIZZLE macro
Akinobu Mita [Sat, 2 Mar 2013 04:06:30 +0000 (04:06 +0000)]
powerpc: Remove unused BITOP_LE_SWIZZLE macro

The BITOP_LE_SWIZZLE macro was used in the little-endian bitops functions
for powerpc.  But these functions were converted to generic bitops and
the BITOP_LE_SWIZZLE is not used anymore.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agopowerpc: Avoid link stack corruption in MMU on syscall entry path
Michael Neuling [Wed, 27 Feb 2013 10:45:52 +0000 (10:45 +0000)]
powerpc: Avoid link stack corruption in MMU on syscall entry path

Currently we use the link register to branch up high in the early MMU on
syscall entry path.  Unfortunately, this trashes the link stack as the
address we are going to is not associated with the earlier mflr.

This patch simply converts us to used the count register (volatile over
syscalls anyway) instead.  This is much better at predicting in this
scenario and doesn't trash link stack causing a bunch of additional
branch mispredicts later.  Benchmarking this on POWER8 saves a bunch of
cycles on Anton's null syscall benchmark here:
   http://ozlabs.org/~anton/junkcode/null_syscall.c

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agodrivers/tty/hvc: Use strlcpy instead of strncpy
Chen Gang [Mon, 25 Feb 2013 17:43:25 +0000 (17:43 +0000)]
drivers/tty/hvc: Use strlcpy instead of strncpy

when strlen pi->location_code is larger than HVCS_CLC_LENGTH + 1,
    original implementation can not let hvcsd->p_location_code NUL terminated.
  so need fix it (also can simplify the code)

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agopowerpc/pseries/hvcserver: Fix strncpy buffer limit in location code
Chen Gang [Mon, 25 Feb 2013 16:51:49 +0000 (16:51 +0000)]
powerpc/pseries/hvcserver: Fix strncpy buffer limit in location code

the dest buf len is 80 (HVCS_CLC_LENGTH + 1).
  the src buf len is PAGE_SIZE.
  if src buf string len is more than 80, it will cause issue.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agopowerpc: Fix compile of sha1-powerpc-asm.S on 32-bit
Tony Breeds [Mon, 25 Feb 2013 16:20:05 +0000 (16:20 +0000)]
powerpc: Fix compile of sha1-powerpc-asm.S on 32-bit

When building with CRYPTO_SHA1_PPC enabled we fail with:

powerpc/crypto/sha1-powerpc-asm.S: Assembler messages:
powerpc/crypto/sha1-powerpc-asm.S:116: Error: can't resolve `0' {*ABS* section} - `STACKFRAMESIZE' {*UND* section}
powerpc/crypto/sha1-powerpc-asm.S:116: Error: expression too complex
powerpc/crypto/sha1-powerpc-asm.S:178: Error: unsupported relocation against STACKFRAMESIZE

Use INT_FRAME_SIZE instead of STACKFRAMESIZE.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
11 years agoLinux 3.9-rc1
Linus Torvalds [Sun, 3 Mar 2013 23:11:05 +0000 (15:11 -0800)]
Linux 3.9-rc1

11 years agoMerge tag 'disintegrate-fbdev-20121220' of git://git.infradead.org/users/dhowells...
Linus Torvalds [Sun, 3 Mar 2013 22:24:59 +0000 (14:24 -0800)]
Merge tag 'disintegrate-fbdev-20121220' of git://git.infradead.org/users/dhowells/linux-headers

Pull fbdev UAPI disintegration from David Howells:
 "You'll be glad to here that the end is nigh for the UAPI patches.
  Only the fbdev/framebuffer piece remains now that the SCSI stuff has
  gone in.

  Here are the UAPI disintegration bits for the fbdev drivers.  It
  appears that Florian hasn't had time to deal with my patch, but back
  in December he did say he didn't mind if I pushed it forward."

Yay.  No more uapi movement.  And hopefully no more big header file
cleanups coming up either, it just tends to be very painful.

* tag 'disintegrate-fbdev-20121220' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/video

11 years agoMerge tag 'stable/for-linus-3.9-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 3 Mar 2013 22:22:53 +0000 (14:22 -0800)]
Merge tag 'stable/for-linus-3.9-rc1-tag' of git://git./linux/kernel/git/konrad/xen

Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
 - Update the Xen ACPI memory and CPU hotplug locking mechanism.
 - Fix PAT issues wherein various applications would not start
 - Fix handling of multiple MSI as AHCI now does it.
 - Fix ARM compile failures.

* tag 'stable/for-linus-3.9-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xenbus: fix compile failure on ARM with Xen enabled
  xen/pci: We don't do multiple MSI's.
  xen/pat: Disable PAT using pat_enabled value.
  xen/acpi: xen cpu hotplug minor updates
  xen/acpi: xen memory hotplug minor updates

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sun, 3 Mar 2013 21:23:02 +0000 (13:23 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull  more VFS bits from Al Viro:
 "Unfortunately, it looks like xattr series will have to wait until the
  next cycle ;-/

  This pile contains 9p cleanups and fixes (races in v9fs_fid_add()
  etc), fixup for nommu breakage in shmem.c, several cleanups and a bit
  more file_inode() work"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  constify path_get/path_put and fs_struct.c stuff
  fix nommu breakage in shmem.c
  cache the value of file_inode() in struct file
  9p: if v9fs_fid_lookup() gets to asking server, it'd better have hashed dentry
  9p: make sure ->lookup() adds fid to the right dentry
  9p: untangle ->lookup() a bit
  9p: double iput() in ->lookup() if d_materialise_unique() fails
  9p: v9fs_fid_add() can't fail now
  v9fs: get rid of v9fs_dentry
  9p: turn fid->dlist into hlist
  9p: don't bother with private lock in ->d_fsdata; dentry->d_lock will do just fine
  more file_inode() open-coded instances
  selinux: opened file can't have NULL or negative ->f_path.dentry

(In the meantime, the hlist traversal macros have changed, so this
required a semantic conflict fixup for the newly hlistified fid->dlist)

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sun, 3 Mar 2013 21:13:20 +0000 (13:13 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixup from Chris Mason:
 "Geert and James both sent this one in, sorry guys"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs/raid56: Add missing #include <linux/vmalloc.h>

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sun, 3 Mar 2013 20:58:43 +0000 (12:58 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux

Pull second set of s390 patches from Martin Schwidefsky:
 "The main part of this merge are Heikos uaccess patches.  Together with
  commit 09884964335e ("mm: do not grow the stack vma just because of an
  overrun on preceding vma") the user string access is hopefully fixed
  for good.

  In addition some bug fixes and two cleanup patches."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/module: fix compile warning
  qdio: remove unused parameters
  s390/uaccess: fix kernel ds access for page table walk
  s390/uaccess: fix strncpy_from_user string length check
  input: disable i8042 PC Keyboard controller for s390
  s390/dis: Fix invalid array size
  s390/uaccess: remove pointless access_ok() checks
  s390/uaccess: fix strncpy_from_user/strnlen_user zero maxlen case
  s390/uaccess: shorten strncpy_from_user/strnlen_user
  s390/dasd: fix unresponsive device after all channel paths were lost
  s390/mm: ignore change bit for vmemmap
  s390/page table dumper: add support for change-recording override bit

11 years agoMerge branch 'fixes-for-3.9-latest' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 3 Mar 2013 20:57:38 +0000 (12:57 -0800)]
Merge branch 'fixes-for-3.9-latest' of git://git./linux/kernel/git/deller/parisc-linux

Pull second round of PARISC updates from Helge Deller:
 "The most important fix in this branch is the switch of io_setup,
  io_getevents and io_submit syscalls to use the available compat
  syscalls when running 32bit userspace on 64bit kernel.  Other than
  that it's mostly removal of compile warnings."

* 'fixes-for-3.9-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: fix redefinition of SET_PERSONALITY
  parisc: do not install modules when installing kernel
  parisc: fix compile warnings triggered by atomic_sub(sizeof(),v)
  parisc: check return value of down_interruptible() in hp_sdc_rtc.c
  parisc: avoid unitialized variable warning in pa_memcpy()
  parisc: remove unused variable 'compat_val'
  parisc: switch to compat_functions of io_setup, io_getevents and io_submit
  parisc: select ARCH_WANT_FRAME_POINTERS

11 years agoMerge tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan...
Linus Torvalds [Sun, 3 Mar 2013 20:06:09 +0000 (12:06 -0800)]
Merge tag 'metag-v3.9-rc1-v4' of git://git./linux/kernel/git/jhogan/metag

Pull new ImgTec Meta architecture from James Hogan:
 "This adds core architecture support for Imagination's Meta processor
  cores, followed by some later miscellaneous arch/metag cleanups and
  fixes which I kept separate to ease review:

   - Support for basic Meta 1 (ATP) and Meta 2 (HTP) core architecture
   - A few fixes all over, particularly for symbol prefixes
   - A few privilege protection fixes
   - Several cleanups (setup.c includes, split out a lot of
     metag_ksyms.c)
   - Fix some missing exports
   - Convert hugetlb to use vm_unmapped_area()
   - Copy device tree to non-init memory
   - Provide dma_get_sgtable()"

* tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: (61 commits)
  metag: Provide dma_get_sgtable()
  metag: prom.h: remove declaration of metag_dt_memblock_reserve()
  metag: copy devicetree to non-init memory
  metag: cleanup metag_ksyms.c includes
  metag: move mm/init.c exports out of metag_ksyms.c
  metag: move usercopy.c exports out of metag_ksyms.c
  metag: move setup.c exports out of metag_ksyms.c
  metag: move kick.c exports out of metag_ksyms.c
  metag: move traps.c exports out of metag_ksyms.c
  metag: move irq enable out of irqflags.h on SMP
  genksyms: fix metag symbol prefix on crc symbols
  metag: hugetlb: convert to vm_unmapped_area()
  metag: export clear_page and copy_page
  metag: export metag_code_cache_flush_all
  metag: protect more non-MMU memory regions
  metag: make TXPRIVEXT bits explicit
  metag: kernel/setup.c: sort includes
  perf: Enable building perf tools for Meta
  metag: add boot time LNKGET/LNKSET check
  metag: add __init to metag_cache_probe()
  ...

11 years agoMerge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Sun, 3 Mar 2013 19:54:39 +0000 (11:54 -0800)]
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm

Pull late ARM updates from Russell King:
 "Here is the late set of ARM updates for this merge window; in here is:

   - The ARM parts of the broadcast timer support, core parts merged
     through tglx's tree.  This was left over from the previous merge to
     allow the dependency on tglx's tree to be resolved.

   - A fix to the VFP code which shows up on Raspberry Pi's, as well as
     fixing the fallout from a previous commit in this area.

   - A number of smaller fixes scattered throughout the ARM tree"

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: Fix broken commit 0cc41e4a21d43 corrupting kernel messages
  ARM: fix scheduling while atomic warning in alignment handling code
  ARM: VFP: fix emulation of second VFP instruction
  ARM: 7656/1: uImage: Error out on build of multiplatform without LOADADDR
  ARM: 7640/1: memory: tegra_ahb_enable_smmu() depends on TEGRA_IOMMU_SMMU
  ARM: 7654/1: Preserve L_PTE_VALID in pte_modify()
  ARM: 7653/2: do not scale loops_per_jiffy when using a constant delay clock
  ARM: 7651/1: remove unused smp_timer_broadcast #define

11 years agoMerge tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 3 Mar 2013 18:25:47 +0000 (10:25 -0800)]
Merge tag 'char-misc-3.9-rc1' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc patch from Greg Kroah-Hartman:
 "Here is one remaining patch for 3.9-rc1.  It is for the hyper-v
  drivers, and had to wait until some other patches went in through the
  x86 tree."

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Drivers: hv: vmbus: Use the new infrastructure for delivering VMBUS interrupts

11 years agoMerge tag 'usb-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 3 Mar 2013 18:24:57 +0000 (10:24 -0800)]
Merge tag 'usb-3.9-rc1' of git://git./linux/kernel/git/gregkh/usb

Pull USB patch revert from Greg Kroah-Hartman:
 "Here is one remaining USB patch for 3.9-rc1, it reverts a 3.8 patch
  that has caused a lot of regressions for some VIA EHCI controllers."

* tag 'usb-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: EHCI: revert "remove ASS/PSS polling timeout"

11 years agoMerge git://www.linux-watchdog.org/linux-watchdog
Linus Torvalds [Sun, 3 Mar 2013 18:23:29 +0000 (10:23 -0800)]
Merge git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:
 "This contains:
   - fixes and improvements
   - devicetree bindings
   - conversion to watchdog generic framework of the following drivers:
        - booke_wdt
        - bcm47xx_wdt.c
        - at91sam9_wdt
   - Removal of old STMP3xxx driver
   - Addition of following new drivers:
        - new driver for STMP3xxx and i.MX23/28
        - Retu watchdog driver"

* git://www.linux-watchdog.org/linux-watchdog: (30 commits)
  watchdog: sp805_wdt depends on ARM
  watchdog: davinci_wdt: update to devm_* API
  watchdog: davinci_wdt: use devm managed clk get
  watchdog: at91rm9200: add DT support
  watchdog: add timeout-sec property binding
  watchdog: at91sam9_wdt: Convert to use the watchdog framework
  watchdog: omap_wdt: Add option nowayout
  watchdog: core: dt: add support for the timeout-sec dt property
  watchdog: bcm47xx_wdt.c: add hard timer
  watchdog: bcm47xx_wdt.c: rename wdt_time to timeout
  watchdog: bcm47xx_wdt.c: rename ops methods
  watchdog: bcm47xx_wdt.c: use platform device
  watchdog: bcm47xx_wdt.c: convert to watchdog core api
  watchdog: Convert BookE watchdog driver to watchdog infrastructure
  watchdog: s3c2410_wdt: Use devm_* functions
  watchdog: remove old STMP3xxx driver
  watchdog: add new driver for STMP3xxx and i.MX23/28
  rtc: stmp3xxx: add wdt-accessor function
  watchdog: introduce retu_wdt driver
  watchdog: intel_scu_watchdog: fix Kconfig dependency
  ...

11 years agoMerge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sun, 3 Mar 2013 18:20:22 +0000 (10:20 -0800)]
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

Pull second set of slave-dmaengine updates from Vinod Koul:
 "Arnd's patch moves the dw_dmac to use generic DMA binding.  I agreed
  to merge this late as it will avoid the conflicts between trees.

  The second patch from Matt adding a dma_request_slave_channel_compat
  API was supposed to be picked up, but somehow never got picked up.
  Some patches dependent on this are already in -next :("

* 'next' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: dw_dmac: move to generic DMA binding
  dmaengine: add dma_request_slave_channel_compat()

11 years agoMerge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Linus Torvalds [Sun, 3 Mar 2013 18:16:19 +0000 (10:16 -0800)]
Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

Pull x86 platform driver updates from Matthew Garrett:
 "Mostly relatively small updates, along with some hardware enablement
  for Sony hardware and a pile of updates to Google's Chromebook driver"

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (49 commits)
  ideapad-laptop: Depend on BACKLIGHT_CLASS_DEVICE instead of selecting it
  ideapad: depends on backlight subsystem and update comment
  Platform: x86: chromeos_laptop - add i915 gmbuses to adapter names
  Platform: x86: chromeos_laptop - Add isl light sensor for Pixel
  Platform: x86: chromeos_laptop - Add a more general add_i2c_device
  Platform: x86: chromeos_laptop - Add Pixel Touchscreen
  Platform: x86: chromeos_laptop - Add support for probing devices
  Platform: x86: chromeos_laptop - Add Pixel Trackpad
  hp-wmi: fix handling of platform device
  sony-laptop: leak in error handling sony_nc_lid_resume_setup()
  hp-wmi: Add support for SMBus hotkeys
  asus-wmi: Fix unused function build warning
  acer-wmi: avoid the warning of 'devices' may be used uninitialized
  drivers/platform/x86/thinkpad_acpi.c: Handle HKEY event 0x6040
  Platform: x86: chromeos_laptop - Add HP Pavilion 14
  Platform: x86: chromeos_laptop - Add Taos tsl2583 device
  Platform: x86: chromeos_laptop - Add Taos tsl2563 device
  Platform: x86: chromeos_laptop - Add Acer C7 trackpad
  Platform: x86: chromeos_laptop - Rename setup_lumpy_tp to setup_cyapa_smbus_tp
  asus-laptop: always report brightness key events
  ...

11 years agobtrfs/raid56: Add missing #include <linux/vmalloc.h>
Geert Uytterhoeven [Sun, 3 Mar 2013 11:44:41 +0000 (04:44 -0700)]
btrfs/raid56: Add missing #include <linux/vmalloc.h>

tilegx_defconfig:

fs/btrfs/raid56.c: In function 'btrfs_alloc_stripe_hash_table':
fs/btrfs/raid56.c:206:3: error: implicit declaration of function 'vzalloc' [-Werror=implicit-function-declaration]
fs/btrfs/raid56.c:206:9: warning: assignment makes pointer from integer without a cast [enabled by default]
fs/btrfs/raid56.c:226:4: error: implicit declaration of function 'vfree' [-Werror=implicit-function-declaration]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
11 years agoMerge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...
Linus Torvalds [Sun, 3 Mar 2013 03:33:21 +0000 (19:33 -0800)]
Merge tag 'ext4_for_linus' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 bug fixes from Ted Ts'o:
 "Various bug fixes for ext4.  The most important is a fix for the new
  extent cache's slab shrinker which can cause significant, user-visible
  pauses when the system is under memory pressure."

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: enable quotas before orphan cleanup
  ext4: don't allow quota mount options when quota feature enabled
  ext4: fix a warning from sparse check for ext4_dir_llseek
  ext4: convert number of blocks to clusters properly
  ext4: fix possible memory leak in ext4_remount()
  jbd2: fix ERR_PTR dereference in jbd2__journal_start
  ext4: use percpu counter for extent cache count
  ext4: optimize ext4_es_shrink()

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Linus Torvalds [Sun, 3 Mar 2013 03:32:06 +0000 (19:32 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/signal

Pull sigprocmask compat fix from Al Viro:
 "generic compat_sys_rt_sigprocmask() had a very dumb braino; I'd spent
  quite a while staring at the offending commit before finally managing
  to spot the idiocy ;-/"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
  fix compat_sys_rt_sigprocmask()

11 years agofix compat_sys_rt_sigprocmask()
Al Viro [Sun, 3 Mar 2013 01:39:15 +0000 (20:39 -0500)]
fix compat_sys_rt_sigprocmask()

Converting bitmask to 32bit granularity is fine, but we'd better
_do_ something with the result.  Such as "copy it to userland"...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
11 years agoMerge tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Sun, 3 Mar 2013 00:46:07 +0000 (16:46 -0800)]
Merge tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "We've just concluded another Connectathon interoperability testing
  week, and so here are the fixes for the bugs that were discovered:

   - Don't allow NFS silly-renamed files to be deleted
   - Don't start the retransmission timer when out of socket space
   - Fix a couple of pnfs-related Oopses.
   - Fix one more NFSv4 state recovery deadlock
   - Don't loop forever when LAYOUTGET returns NFS4ERR_LAYOUTTRYLATER"

* tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: One line comment fix
  NFSv4.1: LAYOUTGET EDELAY loops timeout to the MDS
  SUNRPC: add call to get configured timeout
  PNFS: set the default DS timeout to 60 seconds
  NFSv4: Fix another open/open_recovery deadlock
  nfs: don't allow nfs_find_actor to match inodes of the wrong type
  NFSv4.1: Hold reference to layout hdr in layoutget
  pnfs: fix resend_to_mds for directio
  SUNRPC: Don't start the retransmission timer when out of socket space
  NFS: Don't allow NFS silly-renamed files to be deleted, no signal

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sun, 3 Mar 2013 00:41:54 +0000 (16:41 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs update from Chris Mason:
 "The biggest feature in the pull is the new (and still experimental)
  raid56 code that David Woodhouse started long ago.  I'm still working
  on the parity logging setup that will avoid inconsistent parity after
  a crash, so this is only for testing right now.  But, I'd really like
  to get it out to a broader audience to hammer out any performance
  issues or other problems.

  scrub does not yet correct errors on raid5/6 either.

  Josef has another pass at fsync performance.  The big change here is
  to combine waiting for metadata with waiting for data, which is a big
  latency win.  It is also step one toward using atomics from the
  hardware during a commit.

  Mark Fasheh has a new way to use btrfs send/receive to send only the
  metadata changes.  SUSE is using this to make snapper more efficient
  at finding changes between snapshosts.

  Snapshot-aware defrag is also included.

  Otherwise we have a large number of fixes and cleanups.  Eric Sandeen
  wins the award for removing the most lines, and I'm hoping we steal
  this idea from XFS over and over again."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (118 commits)
  btrfs: fixup/remove module.h usage as required
  Btrfs: delete inline extents when we find them during logging
  btrfs: try harder to allocate raid56 stripe cache
  Btrfs: cleanup to make the function btrfs_delalloc_reserve_metadata more logic
  Btrfs: don't call btrfs_qgroup_free if just btrfs_qgroup_reserve fails
  Btrfs: remove reduplicate check about root in the function btrfs_clean_quota_tree
  Btrfs: return ENOMEM rather than use BUG_ON when btrfs_alloc_path fails
  Btrfs: fix missing deleted items in btrfs_clean_quota_tree
  btrfs: use only inline_pages from extent buffer
  Btrfs: fix wrong reserved space when deleting a snapshot/subvolume
  Btrfs: fix wrong reserved space in qgroup during snap/subv creation
  Btrfs: remove unnecessary dget_parent/dput when creating the pending snapshot
  btrfs: remove a printk from scan_one_device
  Btrfs: fix NULL pointer after aborting a transaction
  Btrfs: fix memory leak of log roots
  Btrfs: copy everything if we've created an inline extent
  btrfs: cleanup for open-coded alignment
  Btrfs: do not change inode flags in rename
  Btrfs: use reserved space for creating a snapshot
  clear chunk_alloc flag on retryable failure
  ...

11 years agoMerge tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd
Linus Torvalds [Sun, 3 Mar 2013 00:33:54 +0000 (16:33 -0800)]
Merge tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd

Pull MTD update from David Woodhouse:
 "Fairly unexciting MTD merge for 3.9:

   - misc clean-ups in the MTD command-line partitioning parser
     (cmdlinepart)
   - add flash locking support for STmicro chips serial flash chips, as
     well as for CFI command set 2 chips.
   - new driver for the ELM error correction HW module found in various
     TI chips, enable the OMAP NAND driver to use the ELM HW error
     correction
   - added number of new serial flash IDs
   - various fixes and improvements in the gpmi NAND driver
   - bcm47xx NAND driver improvements
   - make the mtdpart module actually removable"

* tag 'for-linus-20130301' of git://git.infradead.org/linux-mtd: (45 commits)
  mtd: map: BUG() in non handled cases
  mtd: bcm47xxnflash: use pr_fmt for module prefix in messages
  mtd: davinci_nand: Use managed resources
  mtd: mtd_torturetest can cause stack overflows
  mtd: physmap_of: Convert device allocation to managed devm_kzalloc()
  mtd: at91: atmel_nand: for PMECC, add code to check the ONFI parameter ECC requirement.
  mtd: atmel_nand: make pmecc-cap, pmecc-sector-size in dts is optional.
  mtd: atmel_nand: avoid to report an error when lookup table offset is 0.
  mtd: bcm47xxsflash: adjust names of bus-specific functions
  mtd: bcm47xxpart: improve probing of nvram partition
  mtd: bcm47xxpart: add support for other erase sizes
  mtd: bcm47xxnflash: register this as normal driver
  mtd: bcm47xxnflash: fix message
  mtd: bcm47xxsflash: register this as normal driver
  mtd: bcm47xxsflash: write number of written bytes
  mtd: gpmi: add sanity check for the ECC
  mtd: gpmi: set the Golois Field bit for mx6q's BCH
  mtd: devices: elm: Removes <xx> literals in elm DT node
  mtd: gpmi: fix a dereferencing freed memory error
  mtd: fix the wrong timeo for panic_nand_wait()
  ...

11 years agoMerge branches 'devel-stable', 'fixes' and 'mmci' into for-linus
Russell King [Sun, 3 Mar 2013 00:32:50 +0000 (00:32 +0000)]
Merge branches 'devel-stable', 'fixes' and 'mmci' into for-linus

11 years agoSUNRPC: One line comment fix
Trond Myklebust [Sat, 2 Mar 2013 23:54:11 +0000 (15:54 -0800)]
SUNRPC: One line comment fix

Reported-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
11 years agoext4: enable quotas before orphan cleanup
Jan Kara [Sat, 2 Mar 2013 23:22:38 +0000 (18:22 -0500)]
ext4: enable quotas before orphan cleanup

When using quota feature we need to enable quotas before orphan cleanup
so that changes happening during it are properly reflected in quota
accounting.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
11 years agoext4: don't allow quota mount options when quota feature enabled
Jan Kara [Sat, 2 Mar 2013 22:57:08 +0000 (17:57 -0500)]
ext4: don't allow quota mount options when quota feature enabled

So far we silently ignored when quota mount options were set while quota
feature was enabled.  But this can create confusion in userspace when
mount options are set but silently ignored and also creates opportunities
for bugs when we don't properly test all quota types.  Actually
ext4_mark_dquot_dirty() forgets to test for quota feature so it was
dependent on journaled quota options being set.  OTOH ext4_orphan_cleanup()
tries to enable journaled quota when quota options are specified which is
wrong when quota feature is enabled.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
11 years agoext4: fix a warning from sparse check for ext4_dir_llseek
Zheng Liu [Sat, 2 Mar 2013 22:24:05 +0000 (17:24 -0500)]
ext4: fix a warning from sparse check for ext4_dir_llseek

ext4_dir_llseek is only used as a callback function, and no one calls
it directly.  So make it as a static function in order to remove a
warning message from sparse check.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
11 years agoext4: convert number of blocks to clusters properly
Lukas Czerner [Sat, 2 Mar 2013 22:18:58 +0000 (17:18 -0500)]
ext4: convert number of blocks to clusters properly

We're using macro EXT4_B2C() to convert number of blocks to number of
clusters for bigalloc file systems.  However, we should be using
EXT4_NUM_B2C().

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
11 years agoext4: fix possible memory leak in ext4_remount()
Wei Yongjun [Sat, 2 Mar 2013 22:13:55 +0000 (17:13 -0500)]
ext4: fix possible memory leak in ext4_remount()

'orig_data' is malloced in ext4_remount() and should be freed
before leaving from the error handling cases, otherwise it will
cause memory leak.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Cc: stable@vger.kernel.org
11 years agojbd2: fix ERR_PTR dereference in jbd2__journal_start
Dmitry Monakhov [Sat, 2 Mar 2013 22:08:46 +0000 (17:08 -0500)]
jbd2: fix ERR_PTR dereference in jbd2__journal_start

If start_this_handle() failed handle will be initialized
to ERR_PTR() and can not be dereferenced.

paging request at fffffffffffffff6
IP: [<ffffffff813c073f>] jbd2__journal_start+0x18f/0x290
PGD 200e067 PUD 200f067 PMD 0
Oops: 0000 [#1] SMP
Modules linked in: cpufreq_ondemand acpi_cpufreq freq_table mperf coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode sg xhci_hcd button sd_mod crc_t10dif aesni_intel ablk_helper cryptd lrw aes_x86_64 xts gf128mul ahci libahci pata_acpi ata_generic dm_mirror dm_region_hash dm_log dm_mod
CPU 0 journal commit I/O error

Pid: 2694, comm: fio Not tainted 3.8.0-rc3+ #79                  /DQ67SW
RIP: 0010:[<ffffffff813c073f>]  [<ffffffff813c073f>] jbd2__journal_start+0x18f/0x290
RSP: 0018:ffff880233b8ba58  EFLAGS: 00010292
RAX: 00000000ffffffe2 RBX: ffffffffffffffe2 RCX: 0000000000000006
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff82128f48
RBP: ffff880233b8ba98 R08: 0000000000000000 R09: ffff88021440a6e0

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
11 years agometag: Provide dma_get_sgtable()
James Hogan [Tue, 19 Feb 2013 13:25:46 +0000 (13:25 +0000)]
metag: Provide dma_get_sgtable()

metag/allmodconfig:

drivers/media/v4l2-core/videobuf2-dma-contig.c: In function 'vb2_dc_get_base_sgt':
drivers/media/v4l2-core/videobuf2-dma-contig.c:387: error: implicit declaration of function 'dma_get_sgtable'

For architectures using dma_map_ops, dma_get_sgtable() is provided in
<asm-generic/dma-mapping-common.h>.

Metag does not use dma_map_ops yet, hence it should implement it as an
inline stub using dma_common_get_sgtable().

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
11 years agometag: prom.h: remove declaration of metag_dt_memblock_reserve()
James Hogan [Wed, 20 Feb 2013 14:19:54 +0000 (14:19 +0000)]
metag: prom.h: remove declaration of metag_dt_memblock_reserve()

Metag doesn't have a metag_dt_memblock_reserve() function so remove the
declaration from asm/prom.h.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: copy devicetree to non-init memory
James Hogan [Wed, 20 Feb 2013 13:59:13 +0000 (13:59 +0000)]
metag: copy devicetree to non-init memory

Make a copy of the device tree blob in non-init memory. It is required
when using built-in device tree files that the platform code copies the
blob to non-init memory prior to calling unflatten_device_tree(),
otherwise the strings that the device tree refer to will get poisoned
and potentially reused, breaking later reading of the device tree
post-init (such as compatible matching in modules, debugfs, and the
procfs interface).

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Vineet Gupta <vgupta@synopsys.com>
11 years agometag: cleanup metag_ksyms.c includes
James Hogan [Wed, 13 Feb 2013 13:30:15 +0000 (13:30 +0000)]
metag: cleanup metag_ksyms.c includes

Minimise metag_ksyms.c includes to directly include the <asm/*.h> files
that declare a particular symbol, and not include any unnecessary ones.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move mm/init.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 13:19:15 +0000 (13:19 +0000)]
metag: move mm/init.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in mm/init.c into mm/init.c.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move usercopy.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 12:57:10 +0000 (12:57 +0000)]
metag: move usercopy.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in usercopy.c into usercopy.c

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move setup.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 12:55:51 +0000 (12:55 +0000)]
metag: move setup.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in setup.c into setup.c

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move kick.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 13:01:55 +0000 (13:01 +0000)]
metag: move kick.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in kick.c into kick.c

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move traps.c exports out of metag_ksyms.c
James Hogan [Wed, 13 Feb 2013 12:19:03 +0000 (12:19 +0000)]
metag: move traps.c exports out of metag_ksyms.c

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in traps.c into traps.c

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: move irq enable out of irqflags.h on SMP
James Hogan [Tue, 12 Feb 2013 16:04:53 +0000 (16:04 +0000)]
metag: move irq enable out of irqflags.h on SMP

The SMP version of arch_local_irq_enable() uses preempt_disable(), but
<asm/irqflags.h> doesn't include <linux/preempt.h> causing the following
errors on SMP when pstore/ftrace is enabled (caught by buildbot smp
allyesconfig):

In file included from include/linux/irqflags.h:15,
                 from fs/pstore/ftrace.c:16:
arch/metag/include/asm/irqflags.h: In function 'arch_local_irq_enable':
arch/metag/include/asm/irqflags.h:84: error: implicit declaration of function 'preempt_disable'
arch/metag/include/asm/irqflags.h:86: error: implicit declaration of function 'preempt_enable_no_resched'

However <linux/preempt.h> cannot be easily included from
<asm/irqflags.h> as it can cause circular include dependencies in the
!SMP case, and potentially in the SMP case in the future. Therefore move
the SMP implementation of arch_local_irq_enable() into traps.c and use
an inline version of get_trigger_mask() which is also defined in traps.c
for SMP.

This adds an extra layer of function call / stack push when
preempt_disable needs to call other functions, however in the
non-preemptive SMP case it should be about as fast, as it was already
calling the get_trigger_mask() function which is now used inline.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agogenksyms: fix metag symbol prefix on crc symbols
James Hogan [Mon, 11 Feb 2013 15:40:24 +0000 (15:40 +0000)]
genksyms: fix metag symbol prefix on crc symbols

Meta uses symbol prefixes, so add "metag" to the list of architectures
to set the mod_prefix to "_" for. This fixes __crc_* symbols to add the
extra underscore to match _CRC_SYMBOL macro in <linux/export.h> and so
that modpost finds them.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: hugetlb: convert to vm_unmapped_area()
James Hogan [Mon, 11 Feb 2013 17:28:10 +0000 (17:28 +0000)]
metag: hugetlb: convert to vm_unmapped_area()

Convert hugetlb_get_unmapped_area_new_pmd() to use vm_unmapped_area()
rather than searching the virtual address space itself. This fixes the
following errors in linux-next due to the specified members being
removed after other architectures have already been converted:

arch/metag/mm/hugetlbpage.c: In function 'hugetlb_get_unmapped_area_new_pmd':
arch/metag/mm/hugetlbpage.c:199: error: 'struct mm_struct' has no member named 'cached_hole_size'
arch/metag/mm/hugetlbpage.c:200: error: 'struct mm_struct' has no member named 'free_area_cache'
arch/metag/mm/hugetlbpage.c:215: error: 'struct mm_struct' has no member named 'cached_hole_size'

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Michel Lespinasse <walken@google.com>
11 years agometag: export clear_page and copy_page
James Hogan [Mon, 11 Feb 2013 11:47:02 +0000 (11:47 +0000)]
metag: export clear_page and copy_page

Various file systems use clear_page() and copy_page(), so when they're
built as modules we get build errors like the following:

ERROR: "clear_page" [fs/ntfs/ntfs.ko] undefined!
ERROR: "copy_page" [fs/nilfs2/nilfs2.ko] undefined!

Therefore export these functions to modules from metag_ksyms.c to fix
the errors. This was hit by a randconfig build.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: export metag_code_cache_flush_all
James Hogan [Mon, 11 Feb 2013 11:43:20 +0000 (11:43 +0000)]
metag: export metag_code_cache_flush_all

Various file systems indirectly use metag_code_cache_flush_all(), so
when they're built as modules we get build errors like the following:

ERROR: "metag_code_cache_flush_all" [fs/xfs/xfs.ko] undefined!

Therefore export this function to modules to fix the errors. This was
hit by a randconfig build.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: protect more non-MMU memory regions
James Hogan [Thu, 31 Jan 2013 13:42:03 +0000 (13:42 +0000)]
metag: protect more non-MMU memory regions

Rename setup_txprivext() to setup_priv() and add initialisation of some
more per-thread privilege protection registers:

 - TxPRIVSYSR: 0x04400000-0x047fffff
               0x05000000-0x07ffffff
               0x84000000-0x87ffffff
 - TxPIOREG:   0x02000000-0x02ffffff
               0x04800000-0x048fffff
 - TxSYREG:    0x04000000-0x04000fff (except write fetch system event)

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: make TXPRIVEXT bits explicit
James Hogan [Thu, 31 Jan 2013 13:27:35 +0000 (13:27 +0000)]
metag: make TXPRIVEXT bits explicit

Define PRIV_BITS using explicit constants from <asm/metag_regs.h> rather
than with a hard coded value. This also adds a couple of missing
definitions for the TXPRIVEXT priv bits for protecting writes to TXTIMER
and the trace registers.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: kernel/setup.c: sort includes
James Hogan [Thu, 31 Jan 2013 13:38:48 +0000 (13:38 +0000)]
metag: kernel/setup.c: sort includes

Sort includes in kernel/setup.c.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agoperf: Enable building perf tools for Meta
James Hogan [Thu, 31 Jan 2013 12:22:37 +0000 (12:22 +0000)]
perf: Enable building perf tools for Meta

Define rmb(), cpu_relax(), and CPUINFO_PROC for Meta so that the perf
tools can be built for Meta.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
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>
11 years agometag: add boot time LNKGET/LNKSET check
James Hogan [Thu, 31 Jan 2013 11:06:03 +0000 (11:06 +0000)]
metag: add boot time LNKGET/LNKSET check

Add boot time check for whether LNKGET/LNKSET go through or around the
cache. Depending on the configuration an info message (no harm), warning
(technically wrong but no harm), or big WARN (expect failure in either
kernel or userland) may be emitted if the behaviour is not as expected:

Configuration                                Hardware   Response
------------------------------------------   --------   --------
AROUND_CACHE                                 through    pr_info
!AROUND_CACHE && ATOMICITY_LNKGET            around     WARN (kernel)
     "        && !ATOMICITY_LNKGET && SMP    around     WARN (user)
     "                   "         && !SMP   around     pr_warn

Signed-off-by: James Hogan <james.hogan@imgtec.com>
11 years agometag: add __init to metag_cache_probe()
James Hogan [Thu, 31 Jan 2013 11:04:49 +0000 (11:04 +0000)]
metag: add __init to metag_cache_probe()

metag_cache_probe() is only called from setup_arch(), so add the __init
attribute to it.

Signed-off-by: James Hogan <james.hogan@imgtec.com>