Nothing sets function_trace_stop to disable function tracing anymore.
Remove the check for it in the arch code.

Link: http://lkml.kernel.org/r/53C8D82B.4030204@monstr.euTested-by: NMichal Simek <monstr@monstr.eu>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>

ftrace_stop() is going away as it disables parts of function tracing
that affects users that should not be affected. But ftrace_graph_stop()
is built on ftrace_stop(). Here's another example of killing all of
function tracing because something went wrong with function graph
tracing.

Instead of disabling all users of function tracing on function graph
error, disable only function graph tracing. To do this, the arch code
must call ftrace_graph_is_dead() before it implements function graph.

Link: http://lkml.kernel.org/r/53C8D874.9090601@monstr.euTested-by: NMichal Simek <monstr@monstr.eu>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>

Following precedence set by MIPs:
"[MIPS] Change libgcc-style functions from lib-y to obj-y"
(sha1: f7c27781),
switch the goal definition for kbuild to obj-y to ensure
object files linked in vmlinux if only modules were users
of these functions.
Signed-off-by: NDavid Holsgrove <david.holsgrove@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

The arch_mutex_cpu_relax() function, introduced by 34b133f8, is
hacky and ugly. It was added a few years ago to address the fact
that common cpu_relax() calls include yielding on s390, and thus
impact the optimistic spinning functionality of mutexes. Nowadays
we use this function well beyond mutexes: rwsem, qrwlock, mcs and
lockref. Since the macro that defines the call is in the mutex header,
any users must include mutex.h and the naming is misleading as well.

This patch (i) renames the call to cpu_relax_lowlatency  ("relax, but
only if you can do it with very low latency") and (ii) defines it in
each arch's asm/processor.h local header, just like for regular cpu_relax
functions. On all archs, except s390, cpu_relax_lowlatency is simply cpu_relax,
and thus we can take it out of mutex.h. While this can seem redundant,
I believe it is a good choice as it allows us to move out arch specific
logic from generic locking primitives and enables future(?) archs to
transparently define it, similarly to System Z.
Signed-off-by: NDavidlohr Bueso <davidlohr@hp.com>
Signed-off-by: NPeter Zijlstra <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Anton Blanchard <anton@samba.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Bharat Bhushan <r65777@freescale.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chen Liqin <liqin.linux@gmail.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Cc: Dominik Dingel <dingel@linux.vnet.ibm.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Joseph Myers <joseph@codesourcery.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Nicolas Pitre <nico@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Qiaowei Ren <qiaowei.ren@intel.com>
Cc: Rafael Wysocki <rafael.j.wysocki@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Stratos Karafotis <stratosk@semaphore.gr>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vasily Kulikov <segoon@openwall.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: Waiman Long <Waiman.Long@hp.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: linux390@de.ibm.com
Cc: linux-alpha@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux@lists.openrisc.net
Cc: linux-m32r-ja@ml.linux-m32r.org
Cc: linux-m32r@ml.linux-m32r.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: sparclinux@vger.kernel.org
Link: http://lkml.kernel.org/r/1404079773.2619.4.camel@buesod1.americas.hpqcorp.netSigned-off-by: NIngo Molnar <mingo@kernel.org>

Add new renameat2 syscall.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Trivial fix.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Based on:
"asm-generic: delay.h fix udelay and ndelay for 8 bit args"
(sha1: a87e553f)
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Signed-off-by: NAntonio Ospite <ao2@ao2.it>
Cc: Michal Simek <monstr@monstr.eu>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

sys_sgetmask and sys_ssetmask are obsolete system calls no longer
supported in libc.

This patch replaces architecture related __ARCH_WANT_SYS_SGETMAX by expert
mode configuration.That option is enabled by default for those
architectures.
Signed-off-by: NFabian Frederick <fabf@skynet.be>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

There's been a check for CONFIG_XILINX_CONSOLE since v2.6.30. But the
Kconfig symbol XILINX_CONSOLE was never added. Remove this check.

And, since DUMMY_CONSOLE depends on VT, we can now drop the check for
CONFIG_VT.
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

pdev_archdata dma_mask is completely unused.
Use generic device.h
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

No reason to setup empty function. Core is checking
if this function should be called or not.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Completely unused function - remove it.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

No code is setting up dma_operation for device.
Use dma_direct_ops for all cases.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

PCI_DRAM_OFFSET/pci_dram_offset is 0 all the time and there
is no difference for PCI and !PCI cases.
Also remove the whole code which setup archdata.dma_data
which is completely unused.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

pci_dma_ops are dma_direct_ops which are setup
by default that's why not setup it again.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Return Microblaze default dma operations
and remove bus notifier which setups the same dma operations
by default when device is added to the system.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

SERIAL_OF_PLATFORM is required for getting 8250 to work.
Reported-by: NSubbaraya Sundeep Bhatta <sbhatta@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

pcibios_penalize_isa_irq() is only implemented by x86 now, and legacy ISA
is not used by some architectures.  Make pcibios_penalize_isa_irq() a
__weak function to simplify the code.  This removes the need for new
platforms to add stub implementations of pcibios_penalize_isa_irq().

[bhelgaas: changelog, comments]
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Move the devspec OF attribute to PCI common code's set of device attributes
since it's not architecture dependent.  As a side effect microblaze and
powerpc no longer need to use pcibios_add_platform_entries().

[bhelgaas: fold in #include for compile error]
Link: https://lkml.kernel.org/r/alpine.LFD.2.11.1404141101500.1529@denkbrettSigned-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Both powerpc and microblaze have the same FDT blob in debugfs feature.
Move this to common location and remove the powerpc and microblaze
implementations. This feature could become more useful when FDT
overlay support is added.

This changes the path of the blob from "$arch/flat-device-tree" to
"device-tree/flat-device-tree".
Signed-off-by: NRob Herring <robh@kernel.org>
Tested-by: NMichal Simek <michal.simek@xilinx.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Tested-by: NGrant Likely <grant.likely@linaro.org>
Tested-by: NStephen Chivers <schivers@csc.com>

Make of_get_flat_dt_prop arguments compatible with libfdt fdt_getprop
call in preparation to convert FDT code to use libfdt. Make the return
value const and the property length ptr type an int.
Signed-off-by: NRob Herring <robh@kernel.org>
Tested-by: NMichal Simek <michal.simek@xilinx.com>
Tested-by: NGrant Likely <grant.likely@linaro.org>
Tested-by: NStephen Chivers <schivers@csc.com>

Using generic io.h will narrow down code duplication
in architecture io.h.

- define PCI_IOBASE
- remove non existing pci_io_base extern
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

There is no reason to use platform folder structure now.
Everything is OF driven.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

All microblaze platforms are using the same configuration
that's why there is no reason to use generic platform.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Kconfig options should be sorted.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Preparation step for arch/microblaze/platform/ cleanup.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Warning log:
In file included from arch/microblaze/include/asm/thread_info.h:21:0,
                 from include/linux/thread_info.h:54,
                 from include/asm-generic/preempt.h:4,
                 from arch/microblaze/include/generated/asm/preempt.h:1,
                 from include/linux/preempt.h:18,
                 from include/linux/spinlock.h:50,
                 from include/linux/seqlock.h:35,
                 from include/linux/time.h:5,
                 from include/linux/stat.h:18,
                 from include/linux/sysfs.h:20,
                 from include/linux/kobject.h:21,
                 from include/linux/device.h:17,
                 from include/linux/node.h:17,
                 from include/linux/cpu.h:16,
                 from arch/microblaze/kernel/process.c:11:
arch/microblaze/include/asm/processor.h:125:20: warning: no previous prototype
for 'release_thread' [-Wmissing-prototypes]
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Warning:
arch/microblaze/kernel/process.c:164:6: warning: symbol 'arch_cpu_idle'
was not declared. Should it be static?
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Detect endianess directly on the hardware and use
ioread/iowrite functions.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Detect endianess directly on the hardware and use
ioread/iowrite functions.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

We don't need anything arch-specific in pcibios_enable_device(), so drop
the arch implementation and use the default generic one.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
CC: Michal Simek <monstr@monstr.eu>
CC: microblaze-uclinux@itee.uq.edu.au

Many architectures have a stub cputime.h that only include the default
cputime.h

Lets remove the useless headers, we only need to mention that we want
the default headers on the Kbuild files.

Cc: Archs <linux-arch@vger.kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: NRik van Riel <riel@redhat.com>
Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>

Wire-up sched_setattr/getattr syscalls.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Enable these two syscalls.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Enable this syscall and cleanup comments.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

miceroblaze:allmodconfig fails to build, complaining that
early_printk is redeclared.

include/linux/printk.h:114:6: error: static declaration of 'early_printk'
		follows non-static declaration
 void early_printk(const char *s, ...) { }
      ^
In file included from arch/microblaze/include/asm/page.h:19:0,
                 from arch/microblaze/include/asm/io.h:15,
                 from include/linux/io.h:22,
                 from kernel/irq/generic-chip.c:6:
arch/microblaze/include/asm/setup.h:22:6:
		note: previous declaration of 'early_printk' was here
 void early_printk(const char *fmt, ...);

This happens because CONFIG_EARLY_PRINTK is not enabled in this
configuration.

The architecture-specific declaration is not needed; drop it.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

microblaze:allmodconfig complains for some configurations that 'heartbeat'
is redefined as different kind of symbol. This is seen in test compiles
of watchdog drivers, which often use 'heartbeat' as ststic variable.

Since 'heartbeat' is an unfortunate name for a global function,
rename it to microblaze_heartbeat. Also rename the setup function
to microblaze_setup_heartbeat.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

As the data parameter is not really used by any ftrace_dyn_arch_init,
remove that from ftrace_dyn_arch_init. This also removes the addr
local variable from ftrace_init which is now unused.

Note the documentation was imprecise as it did not suggest to set
(*data) to 0.

Link: http://lkml.kernel.org/r/1393268401-24379-4-git-send-email-jslaby@suse.cz

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Signed-off-by: NJiri Slaby <jslaby@suse.cz>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>

No architecture uses the "data" parameter in ftrace_dyn_arch_init() in any
way, it just sets the value to 0. And this is used as a return value
in the caller -- ftrace_init, which just checks the retval against
zero.

Note there is also "return 0" in every ftrace_dyn_arch_init.  So it is
enough to check the retval and remove all the indirect sets of data on
all archs.

Link: http://lkml.kernel.org/r/1393268401-24379-3-git-send-email-jslaby@suse.cz

Cc: linux-arch@vger.kernel.org
Signed-off-by: NJiri Slaby <jslaby@suse.cz>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>