diff options
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 52019b6962ba..348d4355bc00 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -413,10 +413,8 @@ static int __init init_msr_all_available(void) msr_all_available |= MSR_VEC; if (cpu_has_feature(CPU_FTR_VSX)) msr_all_available |= MSR_VSX; -#ifdef CONFIG_SPE if (cpu_has_feature(CPU_FTR_SPE)) msr_all_available |= MSR_SPE; -#endif return 0; } @@ -446,10 +444,8 @@ void giveup_all(struct task_struct *tsk) #endif if (usermsr & MSR_VEC) __giveup_altivec(tsk); -#ifdef CONFIG_SPE if (usermsr & MSR_SPE) __giveup_spe(tsk); -#endif msr_check_and_clear(msr_all_available); } @@ -1899,7 +1895,6 @@ int set_fpexc_mode(struct task_struct *tsk, unsigned int val) * fpexc_mode. fpexc_mode is also used for setting FP exception * mode (asyn, precise, disabled) for 'Classic' FP. */ if (val & PR_FP_EXC_SW_ENABLE) { -#ifdef CONFIG_SPE if (cpu_has_feature(CPU_FTR_SPE)) { /* * When the sticky exception bits are set @@ -1913,16 +1908,15 @@ int set_fpexc_mode(struct task_struct *tsk, unsigned int val) * anyway to restore the prctl settings from * the saved environment. */ +#ifdef CONFIG_SPE tsk->thread.spefscr_last = mfspr(SPRN_SPEFSCR); tsk->thread.fpexc_mode = val & (PR_FP_EXC_SW_ENABLE | PR_FP_ALL_EXCEPT); +#endif return 0; } else { return -EINVAL; } -#else - return -EINVAL; -#endif } /* on a CONFIG_SPE this does not hurt us. The bits that @@ -1943,8 +1937,7 @@ int get_fpexc_mode(struct task_struct *tsk, unsigned long adr) { unsigned int val; - if (tsk->thread.fpexc_mode & PR_FP_EXC_SW_ENABLE) -#ifdef CONFIG_SPE + if (tsk->thread.fpexc_mode & PR_FP_EXC_SW_ENABLE) { if (cpu_has_feature(CPU_FTR_SPE)) { /* * When the sticky exception bits are set @@ -1958,15 +1951,15 @@ int get_fpexc_mode(struct task_struct *tsk, unsigned long adr) * anyway to restore the prctl settings from * the saved environment. */ +#ifdef CONFIG_SPE tsk->thread.spefscr_last = mfspr(SPRN_SPEFSCR); val = tsk->thread.fpexc_mode; +#endif } else return -EINVAL; -#else - return -EINVAL; -#endif - else + } else { val = __unpack_fe01(tsk->thread.fpexc_mode); + } return put_user(val, (unsigned int __user *) adr); } |