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| author | Haren Myneni | 2012-12-06 22:49:56 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt | 2013-01-10 07:01:08 +0100 |
| commit | 92779245599bb3d7fb48066b11c4bfd6aa477198 (patch) | |
| tree | bea152148a83002c420fd92e59aac37bb8f18f70 /arch/powerpc/kernel/process.c | |
| parent | powerpc: Increase exceptions arrays in paca struct to save PPR (diff) | |
| download | kernel-qcow2-linux-92779245599bb3d7fb48066b11c4bfd6aa477198.tar.gz kernel-qcow2-linux-92779245599bb3d7fb48066b11c4bfd6aa477198.tar.xz kernel-qcow2-linux-92779245599bb3d7fb48066b11c4bfd6aa477198.zip | |
powerpc: Define ppr in thread_struct
[PATCH 4/6] powerpc: Define ppr in thread_struct
ppr in thread_struct is used to save PPR and restore it before process exits
from kernel.
This patch sets the default priority to 3 when tasks are created such
that users can use 4 for higher priority tasks.
Signed-off-by: Haren Myneni <haren@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 81430674e71c..3065d17f3606 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -813,6 +813,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, p->thread.dscr_inherit = current->thread.dscr_inherit; p->thread.dscr = current->thread.dscr; } + if (cpu_has_feature(CPU_FTR_HAS_PPR)) + p->thread.ppr = INIT_PPR; #endif /* * The PPC64 ABI makes use of a TOC to contain function |