Wire up new syscalls rt_tgsigqueueinfo and perf_counter_open.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

The prototypes in syscalls.h all make sense for
microblaze, but for some of them, the actual implementation
in sys_microblaze.c needs to be adapted.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

When legacy signal handling is disabled, the
arch/microblaze/kernel/signal.c implementation can
be much simpler, as most of it is handled generically
from kernel/signal.c.

This is also a prerequisite for using the generic
asm/unistd.h, which does not provide __NR_sigreturn,
because this macro is referenced by the current signal.c
implementation.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

All the simple microblaze header files were adapted to use their
asm-generic implementations. These files are more simple and were quite
straightforward to change.

fb.h, vga.h and parport.h previously did not exist, using
the generic version makes it possible to build more drivers
successfully in allyesonfig.
Signed-off-by: NRemis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

The microblaze checksum code is mostly identical to
the asm-generic+lib version, so use that instead.
Signed-off-by: NRemis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Almost all of the ABI relevant header files now have generic
versions, so use those now in order to reduce the amount
of architecture specific code.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Convert most arches to use asm-generic/kmap_types.h.

Move the KM_FENCE_ macro additions into asm-generic/kmap_types.h,
controlled by __WITH_KM_FENCE from each arch's kmap_types.h file.

Would be nice to be able to add custom KM_types per arch, but I don't yet
see a nice, clean way to do that.

Built on x86_64, i386, mips, sparc, alpha(tonyb), powerpc(tonyb), and
68k(tonyb).

Note: avr32 should be able to remove KM_PTE2 (since it's not used) and
then just use the generic kmap_types.h file.  Get avr32 maintainer
approval.
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: <linux-arch@vger.kernel.org>
Acked-by: NMike Frysinger <vapier@gentoo.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Bryan Wu <cooloney@kernel.org>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: "Luck Tony" <tony.luck@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The current asm-generic/page.h only contains the get_order
function, and asm-generic/uaccess.h only implements
unaligned accesses. This renames the file to getorder.h
and uaccess-unaligned.h to make room for new page.h
and uaccess.h file that will be usable by all simple
(e.g. nommu) architectures.
Signed-off-by: NRemis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The existing asm-generic/atomic.h only defines the
atomic_long type. This renames it to atomic-long.h
so we have a place to add a truly generic atomic.h
that can be used on all non-SMP systems.
Signed-off-by: NRemis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NIngo Molnar <mingo@elte.hu>

This provides a reliable way for asm-generic/types.h and other
files to find out if it is running on a 32 or 64 bit platform.

We cannot use CONFIG_64BIT for this in headers that are included
from user space because CONFIG symbols are not available there.
We also cannot do it inside of asm/types.h because some headers
need the word size but cannot include types.h.

The solution is to introduce a new header <asm/bitsperlong.h>
that defines both __BITS_PER_LONG for user space and
BITS_PER_LONG for usage in the kernel. The asm-generic
version falls back to 32 bit unless the architecture overrides
it, which I did for all 64 bit platforms.
Signed-off-by: NRemis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The existing asm-generic versions are incomplete and included
by some architectures. New architectures should be able
to use a generic version, so rename the existing files and
change all users, which lets us add the new files.
Signed-off-by: NRemis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

it assumes we have an unaligned exception handler which

 (a) may not be true
 (b) costs a lot of performance
 Instead we'll use struct/union method for big endian accesses,
  and byte-shifting for little endian.
Signed-off-by: NJohn Williams <john.williams@petalogix.com>

Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

This patches solve problem with inconsistency between
kernel and glibc
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

A polarity reversal in the __KERNEL__ guard prevents the __HAVE_ARCH
flags from being defined in kernel compilation.

I noticed that there's now an option for assembly-optimized versions of
memcpy and memmove. I believe this may be buggy; when I turn it on, all
my printk output gets smashed together, as if the newlines aren't getting
copied.
Signed-off-by: NSteven J. Magnani <steve@digidescorp.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Microblaze does not support the Linux DMA mapping API
at this point, so disable CONFIG_NO_DMA. This lets
us use the generic dma-mapping-broken.h implementation
instead of providing a different copy.

Any drivers that try to use DMA mapping now get
omitted from Kconfig or produce a link error, rather
than failing silently at run time.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

We need to define set_restore_sigmask() in order to
get pselect and ppoll. Also, the setup_frame function
can not be used when __NR_sigreturn is not defined.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This changes the function prototypes in the checksum code
to have the usual prototypes, typically by turning int
arguments into __wsum.

Also change csum_partial_copy_from_user() to operate
on the right address space and export ip_fast_csum,
which is used in modular networking code.

The new version is now sparse-clean including endianess
checks.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This function was actually causing harm, by hiding
errors about invalid sized get_user/put_user accesses.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

linux/types.h breaks the uclibc build, so don't
include it here.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Some device drivers call this, so add a macro
that pretends to do this. Since there is no
MMU support, it won't actually result in an
uncached mapping, though.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>