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author | Stefan Agner <stefan.agner@toradex.com> | 2016-06-29 17:36:47 -0700 |
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committer | Stefan Agner <stefan.agner@toradex.com> | 2016-06-29 17:36:47 -0700 |
commit | efe965a5dad66bd14219cdc9474ea75eda783456 (patch) | |
tree | c88aa38447747bee19da6e4097334cd4c98b426f /arch/mips/include/asm/msa.h | |
parent | 475764ae387355462c874892b03110298038adef (diff) | |
parent | 9ca1d50fa959cda1f04f43275f7930a70f1a631e (diff) |
Merge tag 'v4.4.14' into toradex_vf_4.4-nextColibri_VF_LinuxImageV2.6Beta2_20160701
This is the 4.4.14 stable release
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 bbb85fe21642..6e4effa6f626 100644 --- a/arch/mips/include/asm/msa.h +++ b/arch/mips/include/asm/msa.h @@ -147,6 +147,19 @@ 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) \ |