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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/powerpc/include/asm/processor.h
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/powerpc/include/asm/processor.h')
-rw-r--r--kernel/arch/powerpc/include/asm/processor.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/kernel/arch/powerpc/include/asm/processor.h b/kernel/arch/powerpc/include/asm/processor.h
index bf117d8fb..5afea361b 100644
--- a/kernel/arch/powerpc/include/asm/processor.h
+++ b/kernel/arch/powerpc/include/asm/processor.h
@@ -264,7 +264,6 @@ struct thread_struct {
u64 tm_tfhar; /* Transaction fail handler addr */
u64 tm_texasr; /* Transaction exception & summary */
u64 tm_tfiar; /* Transaction fail instr address reg */
- unsigned long tm_orig_msr; /* Thread's MSR on ctx switch */
struct pt_regs ckpt_regs; /* Checkpointed registers */
unsigned long tm_tar;
@@ -295,6 +294,15 @@ struct thread_struct {
#endif
#ifdef CONFIG_PPC64
unsigned long dscr;
+ /*
+ * This member element dscr_inherit indicates that the process
+ * has explicitly attempted and changed the DSCR register value
+ * for itself. Hence kernel wont use the default CPU DSCR value
+ * contained in the PACA structure anymore during process context
+ * switch. Once this variable is set, this behaviour will also be
+ * inherited to all the children of this process from that point
+ * onwards.
+ */
int dscr_inherit;
unsigned long ppr; /* used to save/restore SMT priority */
#endif