Break-out GIC specific IRQ demux code from the file
entry-macro-intc.S and register during run-time.

Covers sh73a0.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Break-out INTC specific IRQ demux code from the file
entry-macro-intc.S and register during run-time.

Covers sh7367, sh7377 and sh7372.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Always enable MULTI_IRQ_HANDLER on SH-Mobile.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Use the GIC demux code in asm/hardware/entry-macro-gic.S
on the R-Mobile / SH-Mobile processors.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

When CONFIG_ZBOOT_ROM is selected, the resulting zImage file will be small
boot loader and may be burned to rom or flash.

Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NSimon Horman <horms@verge.net.au>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Add ARM support for the DMA debug infrastructure, which allows the
DMA API usage to be debugged.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This patch enables the Migo-R specific touch screen
driver in the Migo-R defconfig.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

fsib_clk will be used when fdiv_clk failed on fsi_hdmi_set_rate.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Prevent the long delay in io_check_error making NMI watchdog
timeout.
Signed-off-by: NHuang Ying <ying.huang@intel.com>
Signed-off-by: NDon Zickus <dzickus@redhat.com>
LKML-Reference: <1294198689-15447-3-git-send-email-dzickus@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

The spin_lock_debug/rcu_cpu_stall detector uses
trigger_all_cpu_backtrace() to dump cpu backtrace.
Therefore it is possible that trigger_all_cpu_backtrace()
could be called at the same time on different CPUs, which
triggers and 'unknown reason NMI' warning. The following case
illustrates the problem:

      CPU1                    CPU2                     ...   CPU N
                       trigger_all_cpu_backtrace()
                       set "backtrace_mask" to cpu mask
                               |
generate NMI interrupts  generate NMI interrupts       ...
    \                          |                               /
     \                         |                              /

The "backtrace_mask" will be cleaned by the first NMI interrupt
at nmi_watchdog_tick(), then the following NMI interrupts
generated by other cpus's arch_trigger_all_cpu_backtrace() will
be taken as unknown reason NMI interrupts.

This patch uses a test_and_set to avoid the problem, and stop
the arch_trigger_all_cpu_backtrace() from calling to avoid
dumping a double cpu backtrace info when there is already a
trigger_all_cpu_backtrace() in progress.
Signed-off-by: NDongdong Deng <dongdong.deng@windriver.com>
Reviewed-by: NBruce Ashfield <bruce.ashfield@windriver.com>
Cc: fweisbec@gmail.com
LKML-Reference: <1294198689-15447-2-git-send-email-dzickus@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NDon Zickus <dzickus@redhat.com>

There are some paths that walk the die_chain with preemption on.
Make sure we are in an NMI call before we start doing anything.

This was triggered by do_general_protection calling notify_die
with DIE_GPF.
Reported-by: NJan Kiszka <jan.kiszka@web.de>
Signed-off-by: NDon Zickus <dzickus@redhat.com>
LKML-Reference: <1294198689-15447-1-git-send-email-dzickus@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Found one x2apic pre-enabled system, x2apic_mode suddenly get
corrupted after register some cpus, when compiled
CONFIG_NR_CPUS=255 instead of 512.

It turns out that generic_processor_info() ==> phyid_set(apicid,
phys_cpu_present_map) causes the problem.

phys_cpu_present_map is sized by MAX_APICS bits, and pre-enabled
system some cpus have an apic id > 255.

The variable after phys_cpu_present_map may get corrupted
silently:

 ffffffff828e8420 B phys_cpu_present_map
 ffffffff828e8440 B apic_verbosity
 ffffffff828e8444 B local_apic_timer_c2_ok
 ffffffff828e8448 B disable_apic
 ffffffff828e844c B x2apic_mode
 ffffffff828e8450 B x2apic_disabled
 ffffffff828e8454 B num_processors
 ...

Actually phys_cpu_present_map is referenced via apic id, instead
index. We should use MAX_LOCAL_APIC instead MAX_APICS.

For 64-bit it will be 32768 in all cases. BSS will increase by 4k bytes
on 64-bit:

	text		data		bss		dec		filename
	21696943	4193748		12787712	38678403	vmlinux.before
	21696943	4193748		12791808	38682499	vmlinux.after

No change on 32bit.

Finally we can remove MAX_APCIS that was rather confusing.
Signed-off-by: NYinghai Lu <yinghai@kernel.org>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
LKML-Reference: <4D23BD9C.3070102@kernel.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Add a sched_clock() implementation to Versatile Express using the new
sched_clock() infrastructure for extending 32bit counters to full
64-bit nanoseconds.
Tested-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Prepare the ap4evb board for the MIPI DSI driver transition to support

different register layouts.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Now, that the MIPI DSI driver implements runtime PM, we don't need anymore to
configure clocks statically in the platform code. This patch also adds a DSITX1
clock definition for sh7372 and attaches PHY clocks to respective devices.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

sh73a0 has divisor[12] setting as 1/7 on FRQCRA.
Signed-off-by: NTakashi YOSHII <takashi.yoshii.zj@renesas.com>
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Add VGA camera support to the Mackerel board
using soc_camera_platform.

The VGA camera module is hooked up using the
8-bit CEU bus, and it is constantly bursting
out frames in fixed video mode setting. The
camera module does not allow any I2C control.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

A definition like:

#define regs_return_value(regs)	((regs)->regs[0])

called with regs_return_value(foo) will be preprocessed to:

((foo)->foo[0])
        ^^^
So to fix this to ensure the preprocessor compiles such calls correctly.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Update copyright info in piggyback.c to include
info from piggyback_64.c.
Include my own copyright too.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Cc: Josip Rodin <joy@entuzijast.net>
Cc: Jakub Jelinek <jakub@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Include an additional "Kernel is ready" print for zImage
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Now that we use the same piggyback for 32 and 64 bit
we can drop the _32 suffix.
Include some trivial unification in the Makefile
now that 32 and 64 bit can share the same piggyback command.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

piggyback_32 adapted to support sparc64:
- locating "HdrS" differs for sparc and sparc64
- sparc64 updates a_text, a_data + a_bss in the final a.out header

Updated Makefile to use piggyback_32 for sparc64.
Deleted the now unused piggyback_64.c

piggyback_32.c is host endian neutral and works on both
little-endian and big-endian hosts.
This fixes a long standing bug where sparc64 could not
generate tftpboot.img on a x86 host.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add new option to piggyback that identify if this is
for 32 or 64 bit.
Use this information to determine the alignment used.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As we always convert to a.out there is no need to
support ELF.

Removing ELF support because:
- it is not used
- it simplifies code to support a.out only
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While reverse engineering the functionality of piggyback
I missed that the code was actually commented.
So I added a few comments.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We use "_start" in 64 bit - do the same in 32 bit.
It is always good to be consistent.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

start and trapbase point to the same address.
But using start to assing to sparc_ttable looked confusing.

Replace this with the use of trapbase.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Refactoring to increase readability (a little).
- sort includes
- spaces around operators
- small helpers introduced
- added a few comments
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When the REG property is not available the NODE-ID is used as an unique
identifier in order to avoid filesystem name duplicates in /proc/openprom
filesystem
Signed-off-by: NDaniel Hellstrom <daniel@gaisler.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The ability to select Timer Core and Timer instance for system clock
makes it possible for multiple AMP systems to coexist.
Signed-off-by: NDaniel Hellstrom <daniel@gaisler.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDaniel Hellstrom <daniel@gaisler.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Needed for LEON AMP systems where different CPUs are routed to

different IRQ controllers. This patch selects the IRQ Controller
which has been routed to the boot CPU, it is up to the boot loader
to configure the IRQ controller.
Signed-off-by: NDaniel Hellstrom <daniel@gaisler.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NDaniel Hellstrom <daniel@gaisler.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

1. Add entries to Kconfig
2. Add machine definition
3. Add Uart platform data, pad setting and base address
4. Adjust GPIO irq number
Signed-off-by: NYong Shen <yong.shen@linaro.org>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

1. pll_base address should return right value
2. uart parent clk is from pll3
Signed-off-by: NYong Shen <yong.shen@linaro.org>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>

v2.6.36-rc8-54-gb40827fa (x86-32, mm: Add an initial page table
for core bootstrapping) made x86 boot using initial_page_table
and broke lguest.

For 2.6.37 we simply cut & paste the initialization code into
lguest (da32dac1 "lguest: populate initial_page_table"), now
we fix it properly by doing that initialization before the
paravirt jump.
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
Acked-by: NJeremy Fitzhardinge <jeremy@goop.org>
Cc: lguest <lguest@ozlabs.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <201101041720.54535.rusty@rustcorp.com.au>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Add these new power trace events:

 power:cpu_idle
 power:cpu_frequency
 power:machine_suspend

The old C-state/idle accounting events:
  power:power_start
  power:power_end

Have now a replacement (but we are still keeping the old
tracepoints for compatibility):

  power:cpu_idle

and
  power:power_frequency

is replaced with:
  power:cpu_frequency

power:machine_suspend is newly introduced.

Jean Pihet has a patch integrated into the generic layer
(kernel/power/suspend.c) which will make use of it.

the type= field got removed from both, it was never
used and the type is differed by the event type itself.

perf timechart userspace tool gets adjusted in a separate patch.
Signed-off-by: NThomas Renninger <trenn@suse.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Acked-by: NArjan van de Ven <arjan@linux.intel.com>
Acked-by: NJean Pihet <jean.pihet@newoldbits.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: rjw@sisk.pl
LKML-Reference: <1294073445-14812-3-git-send-email-trenn@suse.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
LKML-Reference: <1290072314-31155-2-git-send-email-trenn@suse.de>