diff options
author | Anders Roxell <anders.roxell@linaro.org> | 2016-08-10 12:11:15 +0200 |
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committer | Anders Roxell <anders.roxell@linaro.org> | 2016-08-10 12:11:15 +0200 |
commit | a44038112d3379f49df8a9db3e1259d9e945faee (patch) | |
tree | 198f8ef7dcba389b87dbd3cac861d896b5bfd77d /arch/mips/include/asm/msa.h | |
parent | 590e935df0c94b2d7a4584bb26906666176a6133 (diff) | |
parent | 0e790100f1c49f32a390d0cc55801230fd04ba56 (diff) |
Merge remote-tracking branch 'lsk/linux-linaro-lsk-v3.18' into linux-linaro-lsk-v3.18-rtlsk-v3.18-16.09-rtlinux-linaro-lsk-v3.18-rt-test
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Conflicts:
kernel/futex.c
kernel/printk/printk.c
kernel/softirq.c
mm/slub.c
mm/swap.c
Diffstat (limited to 'arch/mips/include/asm/msa.h')
-rw-r--r-- | arch/mips/include/asm/msa.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/mips/include/asm/msa.h b/arch/mips/include/asm/msa.h index af5638b12c75..38bbeda8644c 100644 --- a/arch/mips/include/asm/msa.h +++ b/arch/mips/include/asm/msa.h @@ -67,6 +67,19 @@ static inline void restore_msa(struct task_struct *t) _restore_msa(t); } +static inline void init_msa_upper(void) +{ + /* + * Check cpu_has_msa only if it's a constant. This will allow the + * compiler to optimise out code for CPUs without MSA without adding + * an extra redundant check for CPUs with MSA. + */ + if (__builtin_constant_p(cpu_has_msa) && !cpu_has_msa) + return; + + _init_msa_upper(); +} + #ifdef TOOLCHAIN_SUPPORTS_MSA #define __BUILD_MSA_CTL_REG(name, cs) \ |