diff options
Diffstat (limited to 'kernel/arch/powerpc/include/asm/processor.h')
| -rw-r--r-- | kernel/arch/powerpc/include/asm/processor.h | 10 |
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 |