linux-toradex.git/arch/mips/kernel/smp.c, branch v3.10.2

MIPS: Idle: Consolidate all declarations in .

2013-05-21T23:34:27+00:00

Signed-off-by: Ralf Baechle

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

2013-05-10T14:48:05+00:00

Pull MIPS updates from Ralf Baechle:

 - More work on DT support for various platforms

 - Various fixes that were to late to make it straight into 3.9

 - Improved platform support, in particular the Netlogic XLR and
   BCM63xx, and the SEAD3 and Malta eval boards.

 - Support for several Ralink SOC families.

 - Complete support for the microMIPS ASE which basically reencodes the
   existing MIPS32/MIPS64 ISA to use non-constant size instructions.

 - Some fallout from LTO work which remove old cruft and will generally
   make the MIPS kernel easier to maintain and resistant to compiler
   optimization, even in absence of LTO.

 - KVM support.  While MIPS has announced hardware virtualization
   extensions this KVM extension uses trap and emulate mode for
   virtualization of MIPS32.  More KVM work to add support for VZ
   hardware virtualizaiton extensions and MIPS64 will probably already
   be merged for 3.11.

Most of this has been sitting in -next for a long time.  All defconfigs
have been build or run time tested except three for which fixes are being
sent by other maintainers.

Semantic conflict with kvm updates done as per Ralf

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (118 commits)
  MIPS: Add new GIC clockevent driver.
  MIPS: Formatting clean-ups for clocksources.
  MIPS: Refactor GIC clocksource code.
  MIPS: Move 'gic_frequency' to common location.
  MIPS: Move 'gic_present' to common location.
  MIPS: MIPS16e: Add unaligned access support.
  MIPS: MIPS16e: Support handling of delay slots.
  MIPS: MIPS16e: Add instruction formats.
  MIPS: microMIPS: Optimise 'strnlen' core library function.
  MIPS: microMIPS: Optimise 'strlen' core library function.
  MIPS: microMIPS: Optimise 'strncpy' core library function.
  MIPS: microMIPS: Optimise 'memset' core library function.
  MIPS: microMIPS: Add configuration option for microMIPS kernel.
  MIPS: microMIPS: Disable LL/SC and fix linker bug.
  MIPS: microMIPS: Add vdso support.
  MIPS: microMIPS: Add unaligned access support.
  MIPS: microMIPS: Support handling of delay slots.
  MIPS: microMIPS: Add support for exception handling.
  MIPS: microMIPS: Floating point support.
  MIPS: microMIPS: Fix macro naming in micro-assembler.
  ...

MIPS: Export symbols used by KVM/MIPS module

2013-05-08T01:55:37+00:00

Signed-off-by: Sanjay Lal 
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle

mips: Use generic idle loop

2013-04-08T15:39:26+00:00

Signed-off-by: Thomas Gleixner 
Cc: Linus Torvalds 
Cc: Rusty Russell 
Cc: Paul McKenney 
Cc: Peter Zijlstra 
Reviewed-by: Cc: Srivatsa S. Bhat 
Cc: Magnus Damm 
Cc: Ralf Baechle 
Link: http://lkml.kernel.org/r/20130321215234.754954871@linutronix.de
Signed-off-by: Thomas Gleixner

MIPS: drivers: remove __dev* attributes.

2013-01-03T23:57:09+00:00

CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton 
Signed-off-by: Greg Kroah-Hartman

MIPS: kdump: Add support

2012-12-13T15:46:47+00:00

[ralf@linux-mips.org: Original patch by Maxim Uvarov 
with plenty of further shining, polishing, debugging and testing by me.]

Signed-off-by: Maxim Uvarov 
Cc: linux-mips@linux-mips.org
Cc: kexec@lists.infradead.org
Cc: horms@verge.net.au
Patchwork: https://patchwork.linux-mips.org/patch/1025/
Signed-off-by: Ralf Baechle

MIPS: Synchronize MIPS count one CPU at a time

2012-08-17T08:57:28+00:00

The current implementation of synchronise_count_{master,slave} blocks
slave CPUs in early boot until all of them come up. This no longer
works because blocking a CPU with interrupts off after notifying the
CPU to be online causes problems with the current kernel.

Specifically, after the workqueue changes
(commit a08489c569dc1 "Pull workqueue changes from Tejun Heo")
the CPU_ONLINE notification callback workqueue_cpu_up_callback()
will hang on wait_for_completion(&idle_rebind.done), if the slave
CPUs are blocked for synchronize_count_slave().

The changes are to update synchronize_count_{master,slave}() to handle
one CPU at a time and to call synchronise_count_master() in __cpu_up()
so that the CPU_ONLINE notification goes out only after the COP0 COUNT
register is synchronized.

[ralf@linux-mips.org: This matter only to those few platforms which are
using the cp0 counter as their clocksource which are XLP, XLR and MIPS'
CMP solution.]

Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4216/
Signed-off-by: Ralf Baechle

MIPS: SMTC: Support for Multi-threaded FPUs

2012-07-23T12:55:53+00:00

Signed-off-by: Steven J. Hill 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3603/
Signed-off-by: Ralf Baechle

MIPS: smp: Warn on too early irq enable

2012-07-19T09:23:44+00:00

Just to catch a potential issue.

Signed-off-by: Yong Zhang 
Cc: Sergei Shtylyov 
Cc: David Daney 
Acked-by: David Daney 
Patchwork: https://patchwork.linux-mips.org/patch/3852/
Signed-off-by: Ralf Baechle

MIPS: call set_cpu_online() on cpu being brought up with irq disabled

2012-07-19T09:23:44+00:00

To prevent a problem as commit 5fbd036b [sched: Cleanup cpu_active madness]
and commit 2baab4e9 [sched: Fix select_fallback_rq() vs cpu_active/cpu_online]
try to resolve, move set_cpu_online() to the brought up CPU and with irq
disabled.

Signed-off-by: Yong Zhang 
Cc: Sergei Shtylyov 
Cc: David Daney 
Acked-by: David Daney 
Patchwork: https://patchwork.linux-mips.org/patch/3851/
Signed-off-by: Ralf Baechle