On Wed, 2013-10-23 at 17:31 +0800, Tiejun Chen wrote: > We need to store thread info to these exception thread info like something > we already did for PPC32. > > Signed-off-by: Tiejun Chen <tiejun.c...@windriver.com> > --- > arch/powerpc/kernel/exceptions-64e.S | 22 +++++++++++++++++++--- > 1 file changed, 19 insertions(+), 3 deletions(-) > > diff --git a/arch/powerpc/kernel/exceptions-64e.S > b/arch/powerpc/kernel/exceptions-64e.S > index 68d74b4..a55cf62 100644 > --- a/arch/powerpc/kernel/exceptions-64e.S > +++ b/arch/powerpc/kernel/exceptions-64e.S > @@ -36,6 +36,19 @@ > */ > #define SPECIAL_EXC_FRAME_SIZE INT_FRAME_SIZE > > +/* Now we only store something to exception thread info */ > +#define EXC_LEVEL_EXCEPTION_PROLOG(type) > \ > + ld r14,PACAKSAVE(r13); \ > + CURRENT_THREAD_INFO(r14, r14); \ > + CURRENT_THREAD_INFO(r15, r1); \ > + ld r10,TI_FLAGS(r14); \ > + std r10,TI_FLAGS(r15); \ > + ld r10,TI_PREEMPT(r14); \ > + std r10,TI_PREEMPT(r15); \ > + ld r10,TI_TASK(r14); \ > + std r10,TI_TASK(r15); > + > + > /* Exception prolog code for all exceptions */ > #define EXCEPTION_PROLOG(n, intnum, type, addition) \ > mtspr SPRN_SPRG_##type##_SCRATCH,r13; /* get spare registers */ \ > @@ -69,19 +82,22 @@ > > #define CRIT_SET_KSTACK > \ > ld r1,PACA_CRIT_STACK(r13); \ > - subi r1,r1,SPECIAL_EXC_FRAME_SIZE; > + subi r1,r1,SPECIAL_EXC_FRAME_SIZE; \ > + EXC_LEVEL_EXCEPTION_PROLOG(CRIT); > #define SPRN_CRIT_SRR0 SPRN_CSRR0 > #define SPRN_CRIT_SRR1 SPRN_CSRR1 > > #define DBG_SET_KSTACK > \ > ld r1,PACA_DBG_STACK(r13); \ > - subi r1,r1,SPECIAL_EXC_FRAME_SIZE; > + subi r1,r1,SPECIAL_EXC_FRAME_SIZE; \ > + EXC_LEVEL_EXCEPTION_PROLOG(DBG); > #define SPRN_DBG_SRR0 SPRN_DSRR0 > #define SPRN_DBG_SRR1 SPRN_DSRR1 > > #define MC_SET_KSTACK > \ > ld r1,PACA_MC_STACK(r13); \ > - subi r1,r1,SPECIAL_EXC_FRAME_SIZE; > + subi r1,r1,SPECIAL_EXC_FRAME_SIZE; \ > + EXC_LEVEL_EXCEPTION_PROLOG(MC); > #define SPRN_MC_SRR0 SPRN_MCSRR0 > #define SPRN_MC_SRR1 SPRN_MCSRR1 >
We should rename these if they're going to do more than set up a stack. -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
