linux-toradex.git/arch/powerpc/include/asm/thread_info.h, branch v3.4.18

powerpc: Rework runlatch code

2012-03-08T23:55:02+00:00

This moves the inlines into system.h and changes the runlatch
code to use the thread local flags (non-atomic) rather than
the TIF flags (atomic) to keep track of the latch state.

The code to turn it back on in an asynchronous interrupt is
now simplified and partially inlined.

Signed-off-by: Benjamin Herrenschmidt

freezer: remove now unused TIF_FREEZE

2011-11-21T20:32:25+00:00

Signed-off-by: Tejun Heo 
Cc: Arnd Bergmann 
Cc: linux-arch@vger.kernel.org

powerpc/ftrace: Implement raw syscall tracepoints on PowerPC

2011-05-26T03:38:57+00:00

This patch implements the raw syscall tracepoints on PowerPC and exports
them for ftrace syscalls to use.

To minimise reworking existing code, I slightly re-ordered the thread
info flags such that the new TIF_SYSCALL_TRACEPOINT bit would still fit
within the 16 bits of the andi. instruction's UI field. The instructions
in question are in /arch/powerpc/kernel/entry_{32,64}.S to and the
_TIF_SYSCALL_T_OR_A with the thread flags to see if system call tracing
is enabled.

In the case of 64bit PowerPC, arch_syscall_addr and
arch_syscall_match_sym_name are overridden to allow ftrace syscalls to
work given the unusual system call table structure and symbol names that
start with a period.

Signed-off-by: Ian Munsie 
Signed-off-by: Benjamin Herrenschmidt

powerpc: mmu_gather rework

2011-05-25T15:39:13+00:00

Fix up powerpc to the new mmu_gather stuff.

PPC has an extra batching queue to RCU free the actual pagetable
allocations, use the ARCH extentions for that for now.

For the ppc64_tlb_batch, which tracks the vaddrs to unhash from the
hardware hash-table, keep using per-cpu arrays but flush on context switch
and use a TLF bit to track the lazy_mmu state.

Signed-off-by: Peter Zijlstra 
Acked-by: Benjamin Herrenschmidt 
Cc: David Miller 
Cc: Martin Schwidefsky 
Cc: Russell King 
Cc: Paul Mundt 
Cc: Jeff Dike 
Cc: Richard Weinberger 
Cc: Tony Luck 
Cc: KAMEZAWA Hiroyuki 
Cc: Hugh Dickins 
Cc: Mel Gorman 
Cc: KOSAKI Motohiro 
Cc: Nick Piggin 
Cc: Namhyung Kim 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: NUMA aware alloc_thread_info_node()

2011-03-23T00:44:01+00:00

Add a node parameter to alloc_thread_info(), and change its name to
alloc_thread_info_node()

This change is needed to allow NUMA aware kthread_create_on_cpu()

Signed-off-by: Eric Dumazet 
Acked-by: David S. Miller 
Reviewed-by: Andi Kleen 
Acked-by: Rusty Russell 
Cc: Tejun Heo 
Cc: Tony Luck 
Cc: Fenghua Yu 
Cc: David Howells 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

add descriptive comment for TIF_MEMDIE task flag declaration.

2010-05-14T09:13:27+00:00

Signed-off-by: Andreas Dilger 
Acked-by: KOSAKI Motohiro 
Signed-off-by: Jiri Kosina

powerpc: TIF_ABI_PENDING bit removal

2010-02-01T03:00:30+00:00

Here are the powerpc bits to remove TIF_ABI_PENDING now that
set_personality() is called at the appropriate place in exec.

Signed-off-by: Andreas Schwab 
Signed-off-by: Benjamin Herrenschmidt

sched: INIT_PREEMPT_COUNT

2009-07-10T21:24:05+00:00

Pull the initial preempt_count value into a single
definition site.

Maintainers for: alpha, ia64 and m68k, please have a look,
your arch code is funny.

The header magic is a bit odd, but similar to the KERNEL_DS
one, CPP waits with expanding these macros until the
INIT_THREAD_INFO macro itself is expanded, which is in
arch/*/kernel/init_task.c where we've already included
sched.h so we're good.

Cc: tony.luck@intel.com
Cc: rth@twiddle.net
Cc: geert@linux-m68k.org
Signed-off-by: Peter Zijlstra 
Acked-by: Matt Mackall 
Signed-off-by: Linus Torvalds

Merge commit 'jwb/next' into next

2009-03-03T02:30:03+00:00

powerpc: Move is_32bit_task

2009-02-23T04:53:06+00:00

Move is_32bit_task into asm/thread_info.h, that allows us to test for
32/64bit tasks without an ugly CONFIG_PPC64 ifdef.

Signed-off-by: Anton Blanchard 
Signed-off-by: Benjamin Herrenschmidt