diff options
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index e099e61c702b..4e5a543d0b74 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -1693,7 +1693,7 @@ void fp_unavailable_tm(struct pt_regs *regs) * If VMX is in use, the VRs now hold checkpointed values, * so we don't want to load the VRs from the thread_struct. */ - tm_recheckpoint(¤t->thread, orig_msr | MSR_FP); + tm_recheckpoint(¤t->thread); /* If VMX is in use, get the transactional values back */ if (orig_msr & MSR_VEC) { @@ -1721,7 +1721,7 @@ void altivec_unavailable_tm(struct pt_regs *regs) regs->nip, regs->msr); tm_reclaim_current(TM_CAUSE_FAC_UNAV); current->thread.load_vec = 1; - tm_recheckpoint(¤t->thread, orig_msr | MSR_VEC); + tm_recheckpoint(¤t->thread); current->thread.used_vr = 1; if (orig_msr & MSR_FP) { @@ -1733,8 +1733,6 @@ void altivec_unavailable_tm(struct pt_regs *regs) void vsx_unavailable_tm(struct pt_regs *regs) { - unsigned long orig_msr = regs->msr; - /* See the comments in fp_unavailable_tm(). This works similarly, * though we're loading both FP and VEC registers in here. * @@ -1748,29 +1746,17 @@ void vsx_unavailable_tm(struct pt_regs *regs) current->thread.used_vsr = 1; - /* If FP and VMX are already loaded, we have all the state we need */ - if ((orig_msr & (MSR_FP | MSR_VEC)) == (MSR_FP | MSR_VEC)) { - regs->msr |= MSR_VSX; - return; - } - /* This reclaims FP and/or VR regs if they're already enabled */ tm_reclaim_current(TM_CAUSE_FAC_UNAV); current->thread.load_vec = 1; current->thread.load_fp = 1; - /* This loads & recheckpoints FP and VRs; but we have - * to be sure not to overwrite previously-valid state. - */ - tm_recheckpoint(¤t->thread, orig_msr | MSR_FP | MSR_VEC); - - msr_check_and_set(orig_msr & (MSR_FP | MSR_VEC)); + tm_recheckpoint(¤t->thread); - if (orig_msr & MSR_FP) - load_fp_state(¤t->thread.fp_state); - if (orig_msr & MSR_VEC) - load_vr_state(¤t->thread.vr_state); + msr_check_and_set(MSR_FP | MSR_VEC); + load_fp_state(¤t->thread.fp_state); + load_vr_state(¤t->thread.vr_state); } #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ |