diff options
| -rw-r--r-- | arch/mips/kernel/r4k_switch.S | 4 | ||||
| -rw-r--r-- | arch/mips/kernel/traps.c | 5 |
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S index 81ca3f70fe29..1a1aef04312d 100644 --- a/arch/mips/kernel/r4k_switch.S +++ b/arch/mips/kernel/r4k_switch.S @@ -64,8 +64,10 @@ /* Check whether we're saving scalar or vector context. */ bgtz a3, 1f - /* Save 128b MSA vector context. */ + /* Save 128b MSA vector context + scalar FP control & status. */ + cfc1 t1, fcr31 msa_save_all a0 + sw t1, THREAD_FCR31(a0) b 2f 1: /* Save 32b/64b scalar FP context. */ diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 1a328b1e288b..649c151fe1db 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1154,6 +1154,11 @@ static int enable_restore_fp_context(int msa) /* We need to restore the vector context. */ restore_msa(current); + + /* Restore the scalar FP control & status register */ + if (!was_fpu_owner) + asm volatile("ctc1 %0, $31" : : "r"(current->thread.fpu.fcr31)); + return 0; } |