linux-toradex.git/arch/parisc/kernel/smp.c, branch v4.10

parisc: Check return value of smp_boot_one_cpu()

2016-09-20T16:02:36+00:00

Check return value of smp_boot_one_cpu() whether CPU could be brought up.

Reported-by: John David Anglin 
Signed-off-by: Helge Deller

arch/hotplug: Call into idle with a proper state

2016-03-01T19:36:57+00:00

Let the non boot cpus call into idle with the corresponding hotplug state, so
the hotplug core can handle the further bringup. That's a first step to
convert the boot side of the hotplugged cpus to do all the synchronization
with the other side through the state machine. For now it'll only start the
hotplug thread and kick the full bringup of the cpu.

Signed-off-by: Thomas Gleixner 
Cc: linux-arch@vger.kernel.org
Cc: Rik van Riel 
Cc: Rafael Wysocki 
Cc: "Srivatsa S. Bhat" 
Cc: Peter Zijlstra 
Cc: Arjan van de Ven 
Cc: Sebastian Siewior 
Cc: Rusty Russell 
Cc: Steven Rostedt 
Cc: Oleg Nesterov 
Cc: Tejun Heo 
Cc: Andrew Morton 
Cc: Paul McKenney 
Cc: Linus Torvalds 
Cc: Paul Turner 
Link: http://lkml.kernel.org/r/20160226182341.614102639@linutronix.de
Signed-off-by: Thomas Gleixner

parisc: Remove unused function

2015-02-17T09:41:19+00:00

Remove the function smp_send_start() that is not used anywhere.

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist 
Signed-off-by: Helge Deller

parisc: do not count IPI calls twice

2013-11-07T21:28:54+00:00

The number of IPI calls is already visible as per-cpu IPI irq counters
in/proc/cpuinfo, so let's drop this additional counting.

This partly reverts:
cd85d55 parisc: more irq statistics in /proc/interrupts

Signed-off-by: Helge Deller

parisc: kill SMP single function call interrupt

2013-10-13T15:44:29+00:00

Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt
is needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.

Signed-off-by: Jiang Liu 
Cc: Jiang Liu 
Signed-off-by: Helge Deller

parisc: delete __cpuinit usage from all users

2013-07-14T23:36:51+00:00

The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

This removes all the parisc uses of the __cpuinit macros.

[1] https://lkml.org/lkml/2013/5/20/589

Acked-by: James Bottomley 
Cc: Helge Deller 
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Paul Gortmaker

parisc: tlb flush counting fix for SMP and UP

2013-05-07T21:44:04+00:00

Fix up build error on UP and show correctly number of function call
(ipi) irqs.

Signed-off-by: Helge Deller

parisc: more irq statistics in /proc/interrupts

2013-05-07T20:39:22+00:00

Add framework and initial values for more fine grained statistics in
/proc/interrupts.

Signed-off-by: Helge Deller

parisc: Use generic idle loop

2013-04-08T15:39:27+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: James E.J. Bottomley 
Cc: Helge Deller 
Link: http://lkml.kernel.org/r/20130321215234.956305981@linutronix.de
Signed-off-by: Thomas Gleixner

parisc: Smp: remove call to ipi_call_lock()/ipi_call_unlock()

2012-06-05T15:27:12+00:00

ipi_call_lock/unlock() lock resp. unlock call_function.lock. This lock
protects only the call_function data structure itself, but it's
completely unrelated to cpu_online_mask. The mask to which the IPIs
are sent is calculated before call_function.lock is taken in
smp_call_function_many(), so the locking around set_cpu_online() is
pointless and can be removed.

[ tglx: Massaged changelog ]

Signed-off-by: Yong Zhang 
Cc: ralf@linux-mips.org
Cc: sshtylyov@mvista.com
Cc: david.daney@cavium.com
Cc: nikunj@linux.vnet.ibm.com
Cc: paulmck@linux.vnet.ibm.com
Cc: axboe@kernel.dk
Cc: peterz@infradead.org
Cc: James E.J. Bottomley 
Cc: Helge Deller 
Cc: linux-parisc@vger.kernel.org
Link: http://lkml.kernel.org/r/1338275765-3217-4-git-send-email-yong.zhang0@gmail.com
Acked-by: Srivatsa S. Bhat 
Acked-by: Peter Zijlstra 
Signed-off-by: Thomas Gleixner