As Colin Cross ported my x86 change to ARM, he also pointed out that
powerpc is also behind in this fix.

The commit 722b3c74 "ftrace/graph: Trace function entry before
updating index" fixes an issue with function graph tracing for x86,
where if the called entry function decides not to trace interrupts, it
can fail the check if an interrupt comes in just after the
curr_ret_stack is updated.

The solution is to call the entry function first, then update the
curr_ret_stack if the entry function wants to be traced.

Cc: Colin Cross <ccross@android.com>
Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Reduce the severity of the warning given when firmware flash is
not supported. Not all platforms have it.
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Enable the hardware RNG and crypto modules. I verified they both
autoload via the VIO subsystem, so there is no need to build them in.
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

This updates the g5 defconfig to include nouveau instead of nvidiafb
(which works much better nowadays, in fact the latter crashes on modern
distros), and to set CONFIG_VT_HW_CONSOLE_BINDING without which takeover
from the firmware offb by nouveau doesn't work properly (and leads to
unexplained black screens for some users).

The rest is churn of going through defconfig / savedefconfig
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

After merging the register type check patches from Ben's tree, the
hv enabled booke implementation ceased to compile.

This patch fixes things up so everyone's happy again.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Commit 9778b696 incorrectly
changes the code setting the stack limit on entry to the
kernel to mark the thread_info at the bottom of the stack
out of bounds anymore. This fixes it.
Signed-off-by: NStuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

FPU state is saved into task_struct of created task. Current task continues
use of the state, so it needs TIF_USEDFPU flag is not cleared.

Created task receives fresh FPU and cleared TIF_USEFPU flag is required for it.
Signed-off-by: NKirill Tkhai <tkhai@yandex.ru>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Try to keep highmem support in a more central place.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Only one user so move it to the file using it.
It had nothing to do in fault_32.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The quicklist stuff is not used anymore - drop it.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We already check the model in head_32.S so no need to
repeat the check here
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The base is always the same so no need to use a variable for this.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This function was only used to set of_pdt_build_more to leon_node_init().
But the leon_node_init() was a nop as prom_amba_init was never assigned.

Cc: Daniel Hellstrom <daniel@gaisler.com>
Cc: Konrad Eisele <konrad@gaisler.com>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

sparc32 does not support fixmaps - so do not pretend so by
having the fixmap.h file.
Move relevant parts to vaddrs.h.

I looked at simplifying this even more but failed to understand
the reasoning behind the extra guard page involved and due to
missing testing possibilities only the trivial conversion was done.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove all unused stuff from fixmap.h
It is only used for highmem - sparc32 has no fixmap support.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

No users left of this function - drop it.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We save one page of RAM dropping swapper_pg_dir.
It was only used for an assignment in init-mm.c and we
redid this later in srmmu.c anyway.

This is likely a left-over from the sun4c removal.

To avoid a dummy variable we use a simple #define swapper_pg_dir NULL
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This allowed to us to kill a lot of casts,
with no loss of readability in any places
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fix the most annoying issues that distracts me:
- whitespace
- missing space after "if" and "while"
- spaces around operators
and similar simple things.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

They are only used during early init so lets get rid of them
after init to save some RAM.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Recently, glibc made a change to suppress sign-conversion warnings in
FD_SET (glibc commit ceb9e56b3d1).  This uncovered an issue with the
kernel's definition of __NFDBITS if applications #include
<linux/types.h> after including <sys/select.h>.  A build failure would
be seen when passing the -Werror=sign-compare and -D_FORTIFY_SOURCE=2
flags to gcc.

It was suggested that the kernel should either match the glibc
definition of __NFDBITS or remove that entirely.  The current in-kernel
uses of __NFDBITS can be replaced with BITS_PER_LONG, and there are no
uses of the related __FDELT and __FDMASK defines.  Given that, we'll
continue the cleanup that was started with commit 8b3d1cda
("posix_types: Remove fd_set macros") and drop the remaining unused
macros.

Additionally, linux/time.h has similar macros defined that expand to
nothing so we'll remove those at the same time.
Reported-by: NJeff Law <law@redhat.com>
Suggested-by: NLinus Torvalds <torvalds@linux-foundation.org>
CC: <stable@vger.kernel.org>
Signed-off-by: NJosh Boyer <jwboyer@redhat.com>
[ .. and fix up whitespace as per akpm ]
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The commit 475d0094 (of: Improve prom_update_property() function)
changed prom_update_property interface, and causes the compile
error below.

  CC      arch/arm/mach-mxs/mach-mxs.o
arch/arm/mach-mxs/mach-mxs.c: In function ‘update_fec_mac_prop’:
arch/arm/mach-mxs/mach-mxs.c:216:4: error: too many arguments to function ‘prom_update_property’
include/linux/of.h:263:12: note: declared here

Update the caller update_fec_mac_prop to fix the error.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The bombing to convert pci_bus.subordinate to busn_res.end accidentally
modified a "struct pci_dev" site, causing this file not to compile.
This commit reverts that code to use dev->subordinate again.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

Yinghai Lu removed pci_bus.subordinate in pci-next, which meant that
the tile-next changes to add tilegx PCI support don't build.  This
was expected (seen in linux-next) and this one-line fix is along
the same lines as commit b918c62e for all other architectures.
Acked-by: NBjorn Helgaas <bhelgaas@google.com>
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>

This was accidentally disabled by commit 2a5fdc9a "ARM: dt: tegra:
invert status=disable vs status=okay".

Cc: <stable@vger.kernel.org> # v3.5 (file is named tegra-trimslice.dts there)
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

On TrimSlice, Tegra's USB1 port may be routed to either an external micro
USB port, or an internal USB->SATA bridge for SSD or HDD. This muxing is
controlled by a GPIO. Whilst not strictly a VBUS GPIO, the TrimSlice
board files caused this GPIO to be set appropriately to enable the SATA
bridge by passing it as the VBUS GPIO to the USB driver. Echo this same
configuration in device tree to enable the SATA bridge.

An alternative might be to implement a full USB bus mux driver. However,
that seems over-complex right now.

Cc: <stable@vger.kernel.org> # v3.5 (file is named tegra-trimslice.dts there)
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

It has been decided to use marvell, not mrvl, in the compatibility
property. Search & replace.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>

The last argument of orion_ge00_init() is actually the error
interrupt, so we should be using the correct value here.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>

Commit 98d9986c (ARM: Kirkwood: Replace clock gating) and the fix 5fb2ce
(ARM: Kirkwood: clk_register_gate_fn: add fn assignment) introduced a custom
variant of clock gating which allows to define a function to be called
before gating the clock off.

This is used to disable the SATA and PCIe PHYs if the respective clocks
are unused after initialization.

However, of these two drivers, the SATA driver may be compiled as a module.
The driver re-enables the clocks at module init but the PHYs stay disabled.

Since the custom clock gating disabled the PHYs when gating the clock off,
it should also re-enable them when enabling the clock gate.  This is done by
adding a second function that may be used to enable the PHYs.
Signed-off-by: NSimon Baatz <gmbnomis@gmail.com>
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>

Marvell engineers tell us:

	It seems that many units use the RUNIT clock.
	SPI, UART, NAND, TWSI, ...
	So it's not possible to clock gate it.

Currently the SPI, NAND and TWSI driver will clk_prepaure_enable()
this clk, but since we have no idea what ... is, and turning this clk
off results in a hard lock, unconditionally enable runit.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NSimon Baatz <gmbnomis@gmail.com>

Due to automatic merge of a613163d
"ARM: integrator: convert to common clock" and
56a34b03 "ARM: versatile: Make
plat-versatile clock optional" two platforms: Integrator and
Versatile Express now select both COMMON_CLK and
PLAT_VERSATILE_CLOCK which breaks building them. Fixed now.
Signed-off-by: NPawel Moll <pawel.moll@arm.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Name the regulator as per board schematics and adds its
supply name info in regulator data.
Add the always on fixed regulator to refer the battery supply.

Use this fixed regulator for input supply of some of PMIC
regulator

This patch was originally part of a 2-patch series. Patch 2 got applied
to the regulator tree as 7c7fac30 "regulator: tps6586x: add support for
input supply" without this patch. This broke regulator support on
Harmony.
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
[swarren: added dependency info to commit description]
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The x86 sched power implementation has been broken forever and gets in
the way of other stuff, remove it.

[ For archaeological interest, fixing this code would require dealing
  with the cross-cpu calling of these functions and more importantly, we
  need to filter idle time out of the a/m-perf stuff because the ratio
  will go down to 0 when idle, giving a 0 capacity which is not what
  we'd want. ]
Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Link: http://lkml.kernel.org/r/1339594110.8980.38.camel@twinsSigned-off-by: NIngo Molnar <mingo@kernel.org>

Signed-off-by: NCong Wang <amwang@redhat.com>

Signed-off-by: NCong Wang <amwang@redhat.com>