diff options
| author | Michael Neuling <mikey@neuling.org> | 2016-10-31 13:19:39 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-11-14 20:05:57 +1100 |
| commit | 29a969b764817c1dce819c2bc8c00a147529a5ef (patch) | |
| tree | db44157ead17a0713b9436754087380416d32530 /arch/powerpc/kernel/process.c | |
| parent | 7c65856b7e0d12f2be2adae7a75a11659285f5b9 (diff) | |
powerpc: Revert Load Monitor Register Support
Load monitored is no longer supported on POWER9 so let's remove the
code.
This reverts commit bd3ea317fddf ("powerpc: Load Monitor Register
Support").
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index ce6dc61b15b2..5b62e8c36210 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1051,14 +1051,6 @@ static inline void save_sprs(struct thread_struct *t) */ t->tar = mfspr(SPRN_TAR); } - - if (cpu_has_feature(CPU_FTR_ARCH_300)) { - /* Conditionally save Load Monitor registers, if enabled */ - if (t->fscr & FSCR_LM) { - t->lmrr = mfspr(SPRN_LMRR); - t->lmser = mfspr(SPRN_LMSER); - } - } #endif } @@ -1094,16 +1086,6 @@ static inline void restore_sprs(struct thread_struct *old_thread, if (old_thread->tar != new_thread->tar) mtspr(SPRN_TAR, new_thread->tar); } - - if (cpu_has_feature(CPU_FTR_ARCH_300)) { - /* Conditionally restore Load Monitor registers, if enabled */ - if (new_thread->fscr & FSCR_LM) { - if (old_thread->lmrr != new_thread->lmrr) - mtspr(SPRN_LMRR, new_thread->lmrr); - if (old_thread->lmser != new_thread->lmser) - mtspr(SPRN_LMSER, new_thread->lmser); - } - } #endif } |