Using static inline functions ensure proper type checking
which also remove compilation warning for no MMU

Compilation warning:
arch/microblaze/include/asm/cacheflush.h: warning: 'addr'
 may be used uninitialized in this function [-Wmaybe-uninitialized]

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/include/asm/uaccess.h:101:3:
 warning: cast removes address space of expression
arch/microblaze/include/asm/uaccess.h:107:2:
 warning: cast removes address space of expression

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

futex_atomic_cmpxchg_inatomic exchanged if the values were
unequal rather than equal. This caused incorrect behavior
of robust futexes.

Signed-off-by: Kirk Meyer <kirk.meyer@sencore.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

We are going to move to asm-generic/io.h but
let's fix compilation warnings first for 3.10.

Warning message:
arch/microblaze/include/asm/io.h:126:26: warning: cast to
 pointer from integer of different size [-Wint-to-pointer-cast]
 #define inb(port)  readb((u8 *)((port)))
...

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Compilation warning:
arch/microblaze/kernel/cpu/cache.c:148:2: warning:
 'temp' is used uninitialized in this function [-Wuninitialized]

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Pull microblaze updates from Michal Simek.

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Enable IRQ in arch_cpu_idle
  microblaze: Fix uaccess_ok macro
  microblaze: Add support for new cpu versions and target architecture
  microblaze: Do not select OPT_LIB_ASM by default
  microblaze: Fix initrd support
  microblaze: Do not use r6 in head.S
  microblaze: pci: Remove duplicated header
  microblaze: Set the default irq_domain
  microblaze: pci: Remove duplicated include from pci-common.c

Pull removal of GENERIC_GPIO from Grant Likely:
 "GENERIC_GPIO now synonymous with GPIOLIB.  There are no longer any
  valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it
  is possible to do so which has been causing confusion and breakage.
  This branch does the work to completely eliminate GENERIC_GPIO."

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux:
  gpio: update gpio Chinese documentation
  Remove GENERIC_GPIO config option
  Convert selectors of GENERIC_GPIO to GPIOLIB
  blackfin: force use of gpiolib
  m68k: coldfire: use gpiolib
  mips: pnx833x: remove requirement for GENERIC_GPIO
  openrisc: default GENERIC_GPIO to false
  avr32: default GENERIC_GPIO to false
  xtensa: remove explicit selection of GENERIC_GPIO
  sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB
  powerpc: remove redundant GENERIC_GPIO selection
  unicore32: default GENERIC_GPIO to false
  unicore32: remove unneeded select GENERIC_GPIO
  arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB
  arm: remove redundant GENERIC_GPIO selection
  mips: alchemy: require gpiolib
  mips: txx9: change GENERIC_GPIO to GPIOLIB
  mips: loongson: use GPIO driver on CONFIG_GPIOLIB
  mips: remove redundant GENERIC_GPIO select

Microblaze requires to enable IRQ in cpu_idle loop.

It should be the part of this patch:
"microblaze: Use generic idle loop"
(sha1: e962bb9e9cf73b8c8893c95903e791dd5ec19fb4)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Fix access_ok macro no to permit
case where user will try to access
the last address space which is equal
to segment address.

Example:
segment addr = 0xbfff ffff
address = 0xbfff fff0
size = 0x10

Current wrong implementation
0xbfff ffff >= (0xbfff fff0 | 0x10 | (0xbfff fff0 + 0x10))
0xbfff ffff >= (0xbfff fff0        | 0xc000 0000)
0xbfff ffff >= 0xf000 0000
return 0 which is access failed even the combination is valid.
because get_fs().seq returns the last valid address.

This patch fix this problem.

Size equals to zero is valid access.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Update PVR values based on reference manual.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>