Pull Altera Nios II processor support from Ley Foon Tan:
 "Here is the Linux port for Nios II processor (from Altera) arch/nios2/
  tree for v3.19.

  The patchset has been discussed on the kernel mailing lists since
  April and has gone through 6 revisions of review.  The additional
  changes since then have been mostly further cleanups and fixes when
  merged with other trees.

  The arch code is in arch/nios2 and one asm-generic change (acked by
  Arnd)"

Arnd Bergmann says:
 "I've reviewed the architecture port in the past and it looks good in
  its latest version"
Acked-by: Arnd Bergmann <arnd@arndb.de>

* tag 'nios2-v3.19-rc1' of git://git.rocketboards.org/linux-socfpga-next: (40 commits)
  nios2: Make NIOS2_CMDLINE_IGNORE_DTB depend on CMDLINE_BOOL
  nios2: Add missing NR_CPUS to Kconfig
  nios2: asm-offsets: Remove unused definition TI_TASK
  nios2: Remove write-only struct member from nios2_timer
  nios2: Remove unused extern declaration of shm_align_mask
  nios2: include linux/type.h in io.h
  nios2: move include asm-generic/io.h to end of file
  nios2: remove include asm-generic/iomap.h from io.h
  nios2: remove unnecessary space before define
  nios2: fix error handling of irq_of_parse_and_map
  nios2: Use IS_ENABLED instead of #ifdefs to check config symbols
  nios2: Build infrastructure
  Documentation: Add documentation for Nios2 architecture
  MAINTAINERS: Add nios2 maintainer
  nios2: ptrace support
  nios2: Module support
  nios2: Nios2 registers
  nios2: Miscellaneous header files
  nios2: Cpuinfo handling
  nios2: Time keeping
  ...

Pull SCSI updates from James Bottomley:
 "This patch is the usual mix of driver updates (srp, ipr, scsi_debug,
  NCR5380, fnic, 53c974, ses, wd719x, hpsa, megaraid_sas).

  Of those, wd7a9x is new and 53c974 is a rewrite of the old tmscsim
  driver and the extensive work by Finn Thain rewrites all the NCR5380
  based drivers.

  There's also extensive infrastructure updates: a new logging
  infrastructure for sense information and a rewrite of the tagged
  command queue API and an assortment of minor updates"

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (183 commits)
  scsi: set fmt to NULL scsi_extd_sense_format() by default
  libsas: remove task_collector mode
  wd719x: remove dma_cache_sync call
  scsi_debug: add Report supported opcodes+tmfs; Compare and write
  scsi_debug: change SCSI command parser to table driven
  scsi_debug: add Capacity Changed Unit Attention
  scsi_debug: append inject error flags onto scsi_cmnd object
  scsi_debug: pinpoint invalid field in sense data
  wd719x: Add firmware documentation
  wd719x: Introduce Western Digital WD7193/7197/7296 PCI SCSI card driver
  eeprom-93cx6: Add (read-only) support for 8-bit mode
  esas2r: fix an oversight in setting return value
  esas2r: fix an error path in esas2r_ioctl_handler
  esas2r: fir error handling in do_fm_api
  scsi: add SPC-3 command definitions
  scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16
  scsi: remove scsi_driver owner field
  scsi: move scsi_dispatch_cmd to scsi_lib.c
  scsi: stop passing a gfp_mask argument down the command setup path
  scsi: remove scsi_next_command
  ...

Pull device mapper updates from Mike Snitzer:

 - Significant DM thin-provisioning performance improvements to meet
   performance requirements that were requested by the Gluster
   distributed filesystem.

   Specifically, dm-thinp now takes care to aggregate IO that will be
   issued to the same thinp block before issuing IO to the underlying
   devices.  This really helps improve performance on HW RAID6 devices
   that have a writeback cache because it avoids RMW in the HW RAID
   controller.

 - Some stable fixes: fix leak in DM bufio if integrity profiles were
   enabled, use memzero_explicit in DM crypt to avoid any potential for
   information leak, and a DM cache fix to properly mark a cache block
   dirty if it was promoted to the cache via the overwrite optimization.

 - A few simple DM persistent data library fixes

 - DM cache multiqueue policy block promotion improvements.

 - DM cache discard improvements that take advantage of range
   (multiblock) discard support in the DM bio-prison.  This allows for
   much more efficient bulk discard processing (e.g.  when mkfs.xfs
   discards the entire device).

 - Some small optimizations in DM core and RCU deference cleanups

 - DM core changes to suspend/resume code to introduce the new internal
   suspend/resume interface that the DM thin-pool target now uses to
   suspend/resume active thin devices when the thin-pool must
   suspend/resume.

   This avoids forcing userspace to track all active thin volumes in a
   thin-pool when the thin-pool is suspended for the purposes of
   metadata or data space resize.

* tag 'dm-3.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (49 commits)
  dm crypt: use memzero_explicit for on-stack buffer
  dm space map metadata: fix sm_bootstrap_get_count()
  dm space map metadata: fix sm_bootstrap_get_nr_blocks()
  dm bufio: fix memleak when using a dm_buffer's inline bio
  dm cache: fix spurious cell_defer when dealing with partial block at end of device
  dm cache: dirty flag was mistakenly being cleared when promoting via overwrite
  dm cache: only use overwrite optimisation for promotion when in writeback mode
  dm cache: discard block size must be a multiple of cache block size
  dm cache: fix a harmless race when working out if a block is discarded
  dm cache: when reloading a discard bitset allow for a different discard block size
  dm cache: fix some issues with the new discard range support
  dm array: if resizing the array is a noop set the new root to the old one
  dm: use rcu_dereference_protected instead of rcu_dereference
  dm thin: fix pool_io_hints to avoid looking at max_hw_sectors
  dm thin: suspend/resume active thin devices when reloading thin-pool
  dm: enhance internal suspend and resume interface
  dm thin: do not allow thin device activation while pool is suspended
  dm: add presuspend_undo hook to target_type
  dm: return earlier from dm_blk_ioctl if target doesn't implement .ioctl
  dm thin: remove stale 'trim' message in block comment above pool_message
  ...

Pull regulator updates from Mark Brown:
 "The main thing this time around is support for suspend mode
  configuration from DT which will enable some very useful power savings
  on systems where we can't rely on the bootloader configuration.  We
  still don't really support dynamic configuration of this at runtime,
  that may come later if there is any demand.

  Summary:
   - Support for specifying the target regulation mode and voltage
     during system suspend via DT, enabling power savings in that mode.
   - Reduce the default verbosity of the logging on boot, improving boot
     times especially for systems with very large numbers of regulators.
   - Lots of cleanups and fixes for Maxim PMIC drivers.
   - New driver for Richtek RT5033"

* tag 'regulator-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (62 commits)
  regulator: core: Fix regualtor_ena_gpio_free not to access pin after freeing
  regulator: sky81452: Modify Device Tree structure
  regulator: sky81452: Modify Device Tree structure
  dt-bindings: Update documentation for "system-power-controller" and fix misspellings
  of: Rename "poweroff-source" property to "system-power-controller"
  regulator: max77686: Remove support for board files
  regulator: max77802: Remove support for board files
  regulator: max77802: Fill regulator modes translation callback
  regulator: max77802: Document binding for regulator operating modes
  regulator: of: Add support for parsing initial and suspend modes
  regulator: of: Pass the regulator description in the match table
  regulator: of: Add regulator desc param to of_get_regulator_init_data()
  regulator: Add mode mapping function to struct regulator_desc
  regulator: Document binding for initial and suspend modes
  regulator: core: Add PRE_DISABLE notification
  regulator: gpio: fix parsing of gpio list
  regulator: rpm: add support for RPM-controller SMB208
  regulator: da9063: Do not transform local IRQ to virtual
  regulator: sky81452: Modify dependent Kconfig symbol
  regulator: rt5033: Add RT5033 Regulator device driver
  ...

Pull regmap updates from Mark Brown:
 "A couple of new features this time around, nothing that should have
  any impact on most users:

   - Cleanups and optimization of the path for reading back the register
     defaults from the hardware at startup, reducing boot times for
     devices that use this (most don't, either populating on demand or
     providing defaults).
   - A bus implementation for AC'97 devices"

* tag 'regmap-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: ac97: Add generic AC'97 callbacks
  regmap: cache: Sort include headers alphabetically
  regmap: cache: Fix possible ZERO_SIZE_PTR pointer dereferencing error.
  regmap: cache: use kmalloc_array instead of kmalloc
  regmap: cache: speed regcache_hw_init() up.
  regmap: cache: fix errno in regcache_hw_init()
  regmap: cache: cleanup regcache_hw_init()
  regmap: cache: fix errno in regcache_hw_init()

Merge tag 'hwmon-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "Notable changes:
   - new driver for NCT7802Y
   - support for TMP435, LM95233, LM95235, NCT6792D, and NXP LM75B
   - regulator support for PMBus chips, specifically LTX2978
   - support for humidity sensors to iio-hwmon bridge driver

* tag 'hwmon-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (21 commits)
  hwmon: (tmp401) Detect TMP435 on all addresses it supports
  hwmon: (lm75) Strengthen detect function
  hwmon: (gpio-fan) Add a shutdown handler to poweroff the fans
  hwmon: (gpio-fan) Allow usage of gpio operations that may sleep
  hwmon: (tmp401) Bail out from tmp401_probe() in case of write errors
  hwmon: (tmp401) Add support for TI TMP435
  hwmon: (lm95234) Add support for LM95233
  hwmon: (lm95245) Add support for LM95235
  hwmon: (ina2xx) bail-out from ina2xx_probe() in case of configuration errors
  hwmon: (nct6775) Add blank lines after declarations
  hwmon: (nct6775) Add support for NCT6792D
  hwmon: (nct6775) Documentation updates
  hwmon: (lm75) Add support for the NXP LM75B
  hwmon: Driver for Nuvoton NCT7802Y
  hwmon: (ibmpowernv) Convert to module_platform_driver
  hwmon: (ibmpowernv) Use platform 'id_table' to probe the device
  hwmon: (iio_hwmon) Add support for humidity sensors
  hwmon: (ltc2978) Add regulator support
  hwmon: (pmbus) Add regulator support
  hwmon: (pmbus) add helpers for byte write and read modify write
  ...

Pull EDAC updates from Borislav Petkov:
 "EDAC updates all over the place:

   - Enablement for AMD F15h models 0x60 CPUs.  Most notably DDR4 RAM
     support.  Out of tree stuff is adding the required PCI IDs.  From
     Aravind Gopalakrishnan.

   - Enable amd64_edac for 32-bit due to popular demand.  From Tomasz
     Pala.

   - Convert the AMD MCE injection module to debugfs, where it belongs.

   - Misc EDAC cleanups"

* tag 'edac_for_3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, MCE, AMD: Correct formatting of decoded text
  EDAC, mce_amd_inj: Add an injector function
  EDAC, mce_amd_inj: Add hw-injection attributes
  EDAC, mce_amd_inj: Enable direct writes to MCE MSRs
  EDAC, mce_amd_inj: Convert mce_amd_inj module to debugfs
  EDAC: Delete unnecessary check before calling pci_dev_put()
  EDAC, pci_sysfs: remove unneccessary ifdef around entire file
  ghes_edac: Use snprintf() to silence a static checker warning
  amd64_edac: Build module on x86-32
  EDAC, MCE, AMD: Add decoding table for MC6 xec
  amd64_edac: Add F15h M60h support
  {mv64x60,ppc4xx}_edac,: Remove deprecated IRQF_DISABLED
  EDAC: Sync memory types and names
  EDAC: Add DDR3 LRDIMM entries to edac_mem_types
  x86, amd_nb: Add device IDs to NB tables for F15h M60h
  pci_ids: Add PCI device IDs for F15h M60h

Pull MFD updates from Lee Jones:
 "Changes to the core:
   - Honour PLATFORM_DEVID_NONE and PLATFORM_DEVID_AUTO dev IDs

  Changes to existing drivers:
   - IRQ additions/fixes; axp20x, da9063-core
   - Code simplification; i2c-dln2
   - Regmap additions/fixes; max77693
   - Error checking/handling improvements; dln2, db8500-prcmu
   - Bug fixes; dln2, wm8350-core
   - DT support/documentation; max77693, max77686, tps65217, twl4030-power,
                               gpio-tc3589x
   - Decouple syscon interface from platform devices
   - Use MFD hotplug registration; rtsx_usb, viperboard, hid-sensor-hub
   - Regulator fixups; sec-core
   - Power Management additions/fixes; rts5227, tc6393xb
   - Remove relic/redundant code; ab8500-sysctrl, lpc_sch, max77693-private
   - Clean-up/coding style changes; tps65090
   - Clk additions/fixes; tc6393xb, tc6387xb, t7l66xb
   - Add USB-SPI support; dln2
   - Trivial changes; max14577, arizona-spi, lpc_sch, wm8997-tables, wm5102-tables
                      wm5110-tables, axp20x, atmel-hlcdc, rtsx_pci

  New drivers/supported devices:
   - axp288 PMIC support added to axp20x
   - s2mps13 support added to sec-core
   - New support for Diolan DLN-2
   - New support for atmel-hlcdc"

* tag 'mfd-for-linus-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (55 commits)
  mfd: rtsx: Add func to split u32 into register
  mfd: atmel-hlcdc: Add Kconfig option description and name
  mfd: da9063: Get irq base dynamically before registering device
  mfd: max14577: Fix obvious typo in company name in copyright
  mfd: axp20x: Constify axp20x_acpi_match and rid unused warning
  mfd: t7l66xb: prepare/unprepare clocks
  mfd: tc6387xb: prepare/unprepare clocks
  mfd: dln2: add support for USB-SPI module
  mfd: wm5110: Add missing registers for AIF2 channels 3-6
  mfd: tc3589x: get rid of static base
  mfd: arizona: Document HP_CTRL_1L and HP_CTRL_1R registers
  mfd: wm8997: Mark INTERRUPT_STATUS_2_MASK as readable
  mfd: tc6393xb: Prepare/unprepare clocks
  mfd: tps65090: Fix bonkers indenting strategy
  mfd: tc6393xb: Fail ohci suspend if full state restore is required
  mfd: lpc_sch: Don't call mfd_remove_devices()
  mfd: wm8350-core: Fix probable mask then right shift defect
  mfd: ab8500-sysctrl: Drop ab8500_restart
  mfd: db8500-prcmu: Provide sane error path values
  mfd: db8500-prcmu: Check return of devm_ioremap for error
  ...

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Consolidation and cleanups.
   - Some improvements regarding error handling.
   - Increase maximum amount of block devices.
   - Use correct OCR mask for SDIO when restoring power.
   - Fix prepared requests while doing BKOPS.
   - Convert to modern PM ops.
   - Add mmc_send_tuning() API and convert some hosts to use it.

  MMC host:
   - toshsd: New Toshiba PCI SD controller driver.
   - sdhci: 64-bit ADMA support.
   - sdhci: Some regulator fixes.
   - sdhci: HS400 support.
   - sdhci: Various fixes cleanups.
   - atmel-mci: Modernization and cleanups.
   - atmel-mci: Runtime PM support.
   - omap_hsmmc: Modernization and cleanups.
   - omap_hsmmc: Fix UHS card with DDR50 support.
   - dw_mmc: Support for ARM64 and Exynos 7 variant.
   - dw_mmc: Add support for IMG Pistachio variant.
   - dw_mmc: Various fixes and cleanups.
   - mvsdio: DMA fixes.
   - mxs-mmc: Modernization and cleanups.
   - mxcmmc: Various fixes"

* tag 'mmc-v3.19-1' of git://git.linaro.org/people/ulf.hansson/mmc: (126 commits)
  mmc: sdhci-msm: Convert to mmc_send_tuning()
  mmc: sdhci-esdhc-imx: Convert to mmc_send_tuning()
  mmc: core: Let mmc_send_tuning() to take struct mmc_host* as parameter
  mmc: queue: Improve error handling during allocation of bounce buffers
  mmc: sdhci-acpi: Add two host capabilities for Intel
  mmc: sdhci-pci: Add two host capabilities for BYT
  mmc: sdhci-acpi: Add SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
  mmc: sdhci-pci: Add SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC to BYT
  mmc: atmel-mci: use probe deferring if dma controller is not ready yet
  mmc: atmel-mci: stop using specific initcall
  mmc: atmel-mci: remove __init/__exit attributes
  mmc: atmel-mci: remove useless DMA stuff for non-dt devices
  mmc: omap_hsmmc: Fix UHS card with DDR50 support
  mmc: core: add core-level function for sending tuning commands
  mmc: core: hold SD Clock before CMD11 during Signal
  mmc: mxs-mmc: Check for clk_prepare_enable() error
  mmc: mxs-mmc: Propagate the real error
  mmc: mxs-mmc: No need to do NULL check on 'iores'
  mmc: dw_mmc: Add support for IMG Pistachio
  mmc: mxs-mmc: Simplify PM hooks
  ...

Conflicts:
	drivers/scsi/scsi_debug.c

Agreed and tested resolution to a merge problem between a fix in scsi_debug
and a driver update
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

TMP435 supports a range of I2C addresses, not just 0x4c.

Cc: Patrick Titiano <ptitiano@baylibre.com>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Add helper function to write u32 to registers, if we want to put u32
value to 4 continuous register, this can help us reduce tedious work.
Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Instead of having a local hack taking care of sending the tuning
command and as well to verify the response pattern, let's convert to
the common mmc_send_tuning() API instead.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Georgi Djakov <gdjakov@mm-sol.com>
Acked-by: Georgi Djakov <gdjakov@mm-sol.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>

Instead of having a local function taking care of sending the tuning
command, let's use the common mmc_send_tuning() API provided by the mmc
core. In this way the request will be handled as any other request by
sdhci core.

As an effect of this change, the pm_runtime_get_sync() call at
esdhc_prepare_tuning() isn't needed any more.

This patch will also introduce another change in behavior, since before
the response pattern to the tuning command wasn't verified by
sdhci-esdhc-imx. The mmc_send_tuning() does that.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Dong Aisheng <b29396@freescale.com>

To be able to use mmc_send_tuning() prior the struct mmc_card has been
allocated, let's convert it to take the struct mmc_host* as parameter
instead.
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Dong Aisheng <b29396@freescale.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>

If NIOS2_CMDLINE_IGNORE_DTB is selected but CMDLINE_BOOL isn't and thus
CONFIG_CMDLINE is not defined, the build fails with the following error:

arch/nios2/kernel/setup.c: In function 'nios2_boot_init':
arch/nios2/kernel/setup.c:131:30: error: 'CONFIG_CMDLINE' undeclared
(first use in this function)
   strncpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);

This can be reproduced using randconfig with KCONFIG_SEED=0xE5B8749E, i.e.
'make KCONFIG_SEED=0xE5B8749E ARCH=nios2 randconfig'.

Fix this by letting NIOS2_CMDLINE_IGNORE_DTB depend on CMDLINE_BOOL, so we
actually have a default kernel command string to fall back to.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>

kernel/time/Kconfig expects that NR_CPUS is defined.

This fixes the following config warning:
"kernel/time/Kconfig:163:warning: range is invalid"

Follow 4cbbbb43 ("microblaze: Fix missing NR_CPUS in menuconfig")
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>

TI_TASK is not used in nios2 assembly code, so remove it.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>

The irq member of struct nios2_timer is only written to but
never read, thus it can be removed.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>

shm_align_mask is not defined/used on nios2, thus there is no need to
declare it.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>

This is require for __iomem definition.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

Move asm-generic/io.h to end of file to override functions like
phys_to_virt, virt_to_phys in asm-generic/io.h.
This is due to recent commit 9216efaf introduced new way to
override functions by checking for the existence of a macro with the
same of the function.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

Don't need asm-generic/iomap.h and asm-generic/io.h added
default ioread8/16/32 iowrite8/16/32 implementation.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

Remove extra space between # and define.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>

Make the checking for div/mul/mulx instruction config symbols easier to
read by using IS_ENABLED instead of #ifdefs.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>

This patch adds Makefile and Kconfig files required for building a
nios2 kernel.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

Signed-off-by: Ley Foon Tan <lftan@altera.com>

Signed-off-by: Ley Foon Tan <lftan@altera.com>

Add ptrace support for nios2.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

This patch adds support for loadable modules.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

This file contains constants for the instruction macros, cpu registers,
fields and bits.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

This patch introduces a few nios2-specific header files.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

Signed-off-by: Ley Foon Tan <lftan@altera.com>

Add time keeping code for nios2.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

Add device tree support to arch/nios2.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

Add optimised library functions for nios2.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

This patch adds support for signal handling.
Signed-off-by: Ley Foon Tan <lftan@altera.com>

This patch adds support for system calls from userspaces. It uses the
asm-generic/unistd.h definitions with architecture spcific syscall.
The sys_call_table is just an array defined in a C file and it contains
pointers to the syscall functions.
Signed-off-by: Ley Foon Tan <lftan@altera.com>