With this change, the arch/tile Makefile will only check for a valid
combination of CROSS_COMPILE vs "uname -m" for a few common targets
that are typically the ones we get wrong (vmlinux, all, and modules).
The change handles the case of an empty "make" goal like "make all".
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
Reviewed-by: NSam Ravnborg <sam@ravnborg.org>

This fixes a failure in "make headers_check" for tile.
I hadn't realized this file was exported to userspace by default.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

See commit a6eb9fe1.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
Acked-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

Use the defconfig files generated by "make savedefconfig" for
remaining defconfig files.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>

unifdef-y and header-y have same semantic, so drop unifdef-y
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>

This PL008 among all other variables named PL080 doesn't seem
right. Fix it. Also add some missing defined that I use in the
new PL08x driver.
Acked-by: NBen Dooks <ben-linux@fluff.org>
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

This patch fixes on following build warning.

warning: (PLAT_S5P && (ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PC100 ||
	     ARCH_S5PV210 || ARCH_S5PV310) || ARCH_S3C64XX && <choice>)
	     selects PLAT_SAMSUNG which has unmet direct dependencies
	     (ARCH_S3C2410 || ARCH_S3C24A0 || ARCH_S3C64XX)
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

For situations where double buffering is needed (such as the
current Android) make the screen virtual y size twice the
LCD size so that there is space for a second screen that
can be switched to.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Change the area available for consitent DMA allocations from the
default to 8MiB to allow drivers such as the framebuffer to get
more memory (for situations where larger virtual screen resolutions
are needed).
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

This adds the I²C board information for the WM8987 used in the SmartQ as audio
codec and adds the I²C/I²S platform drivers.
Signed-off-by: NMaurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

The following change makes the framebuffer work on SmartQ5. There are
still some problems with ADC, so this patch alone won't make the device
run (or even give a working fb), but it's one issue less to think about.
Signed-off-by: NPatrick Georgi <patrick@georgi-clan.de>
Signed-off-by: NMaurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

This patch changes the platform data definitions of the wifi and iNAND chip on
the SmartQ 5 and 7 to indicate that they don't have a CD line available and are
thus hard-wired to the SDHCI data lines.
Signed-off-by: NMaurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

This shares the common LCD control platform definition used in the SmartQ 5 and
7. This also corrects it as a GPIO bitbanged SPI device instead of an I²C one,
which was wrong.
Signed-off-by: NMaurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Register SHDCI devices
Signed-off-by: NDarius Augulis <augulis.darius@gmail.com>
[ben-linux@fluff.org: rewrite header[
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

This patch is based on "[PATCH v2] Support for Real6410"
Signed-off-by: NDarius Augulis <augulis.darius@gmail.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add support for CoreWind Real6410 board, based on Samsung s3c6410 processor.
Signed-off-by: NDarius Augulis <augulis.darius@gmail.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Three new syscalls for 2.6.36: prlimit64, fanotify_init and
fanotify_mark.  Wire up the ia64 syscall table for them.
Signed-off-by: NTony Luck <tony.luck@intel.com>

See commit 1527bc8b.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

Mark arguments to certain system calls as being const where they should be but
aren't.  The list includes:

 (*) The filename arguments of various stat syscalls, execve(), various utimes
     syscalls and some mount syscalls.

 (*) The filename arguments of some syscall helpers relating to the above.

 (*) The buffer argument of various write syscalls.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Acked-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

These have been broken (returning "int") since the dawn of
time. But there were no users that needed the whole value
until commit
 424acaae
 rwsem: wake queued readers when writer blocks on active read lock

made this change:

-           (rwsem_atomic_update(0, sem) & RWSEM_ACTIVE_MASK))
-               /* Someone grabbed the sem already */
+           rwsem_atomic_update(0, sem) < RWSEM_WAITING_BIAS)
+               /* Someone grabbed the sem for write already */

RWSEM_ACTIVE_MASK is 0xffffffffL, so the old code only looked
at the low order 32-bits. The new code needs to see all 64 bits.
Signed-off-by: NTony Luck <tony.luck@intel.com>

Until now, the tile architecture ABI for syscall return has just been
that r0 holds the return value, and an error is only signalled like it is
for kernel code, with a negative small number.

However, this means that in multiple places in userspace we end up writing
the same three-cycle idiom that tests for a small negative number for
error.  It seems cleaner to instead move that code into the kernel, and
set r1 to hold zero on success or errno on failure; previously, r1 was
just zeroed on return from the kernel (to avoid leaking kernel state).
This way a single conditional branch after the syscall is sufficient
to test for the failure case.  The number of cycles taken is the same,
but the error-checking code is in just one place, so total code size is
smaller, and random userspace syscall code is easier to understand.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

It's wrong for several reasons, but the most direct one is that the
fault may be for the stack accesses to set up a previous SIGBUS.  When
we have a kernel exception, the kernel exception handler does all the
fixups, not some user-level signal handler.

Even apart from the nested SIGBUS issue, it's also wrong to give out
kernel fault addresses in the signal handler info block, or to send a
SIGBUS when a system call already returns EFAULT.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

acpi_perf_data is a percpu pointer but was missing __percpu markup.
Add it.
Signed-off-by: NNamhyung Kim <namhyung@gmail.com>
Acked-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NDave Jones <davej@redhat.com>

This change rolls up random cleanups not representing any actual bugs.

- Remove a stale CONFIG_ value from the default tile_defconfig
- Remove unused tns_atomic_xxx() family of methods from <asm/atomic.h>
- Optimize get_order() using Tile's "clz" instruction
- Fix a bad hypervisor upcall name (not currently used in Linux anyway)
- Use __copy_in_user_inatomic() name for consistency, and export it
- Export some additional hypervisor driver I/O upcalls and some homecache calls
- Remove the obfuscating MEMCPY_TEST_WH64 support code
- Other stray comment cleanups, #if 0 removal, etc.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

This functionality was stubbed out until recently.  Now we support our
normal backtracing API on TILE-Gx as well as on TILE64/TILEPro.
This change includes a tweak to the instruction encoding caused by
adding addxli for compat mode.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

First, the siginfo preamble wasn't quite right; we need to indicate
that we are padding up to 4 ints of preamble for 64-bit code, and
then for compat mode we need to pad differently, using only 3 ints.

Second, the C ABI requires a save area of two registers, not two
pointers, since in compat mode we have 64-bit registers all of which
we need to save, even though we only have 32-bit VAs.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

We were using the same 5-sec minsec for the clocksource and sched_clock
that we were using for the clock_event_device.  For the clock_event_device
that's exactly right since it has a short maximum countdown time.
But for sched_clock we want to avoid wraparound when converting from
ticks to nsec over a much longer window, so we force a shift of 10.
And for clocksource it seems dodgy to use a 5-sec minsec as well, so we
copy some other platforms and force a shift of 22.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

Signed-off-by: NAndrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

Signed-off-by: NAndrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

Fix this warning:

arch/s390/appldata/appldata_net_sum.c: In function 'appldata_get_net_sum_data':
arch/s390/appldata/appldata_net_sum.c:89: warning: initialization from incompatible pointer type

which was introduced with be1f3c2c
"net: Enable 64-bit net device statistics on 32-bit architectures"
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

commit 485d5276 "sys_personality: change
sys_personality() to accept "unsigned int" instead of u_long" changed
the syscall interface for sys_personality.
Just follow the common code change in our arch code to avoid confusion.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

This replaces Version 1 of this patch, which broke the build when
CONFIG_KEXEC and CONFIG_CRASH_DUMP were configured off.  In that case
the storage for the 'in_crash_kexec' flag was never built.

This version defines that flag as 0 if CONFIG_KEXEC is not set.
The patch is tested with all combinations of those two options.
Signed-off-by: NCliff Wickman <cpw@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <E1OiZcw-0001Hb-2g@eag09.americas.sgi.com>
Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>

The current computation, introduced with f12a15be, of FSEC_PER_SEC using
the multiplication of (FSEC_PER_NSEC * NSEC_PER_SEC) is performed only
with 32bit integers on small machines, resulting in an overflow and a
*very* short intervals being programmed.  An interrupt storm follows.

Note that we also have to specify FSEC_PER_SEC as being long long to
overcome the same limitations.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NJohn Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: NIngo Molnar <mingo@elte.hu>
Acked-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Use no_printk() for disabled gdbstub debugging functions to maintain side
effect checking.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add a dummy printk function for the maintenance of unused printks through gcc
format checking, and also so that side-effect checking is maintained too.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Don't try and #include <linux/slab.h> in lib/inflate.c from the bootloader code
as linux/slab.h hauls in function defs that aren't available in the bootloader
code and may also haul in conflicting functions.

To fix this, make the inclusion of linux/slab.h contingent on NO_INFLATE_MALLOC
as are the usages of kmalloc() and kfree().

In MN10300, this causes the following errors:

In file included from include/linux/string.h:21,
                 from include/linux/bitmap.h:8,
                 from include/linux/nodemask.h:93,
                 from include/linux/mmzone.h:16,
                 from include/linux/gfp.h:4,
                 from include/linux/slab.h:12,
                 from arch/mn10300/boot/compressed/../../../../lib/inflate.c:106,
                 from arch/mn10300/boot/compressed/misc.c:170:
/warthog/am33/linux-2.6-mn10300/arch/mn10300/include/asm/string.h:19: error: conflicting types for 'memset'
arch/mn10300/boot/compressed/misc.c:59: error: previous definition of 'memset' was here
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

With the newer compilers, size_t and ssize_t are expected to be (un)signed int
rather than (un)signed long.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

A change to the RTC routines in the MN10300 arch used set_rtc_mms() when it
meant set_rtc_mmss().  This results in an error due to a reference of an
undefined symbol.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>