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| author | Tony Lindgren <tony@atomide.com> | 2018-08-28 09:58:03 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2018-08-28 09:58:03 -0700 |
| commit | ea4d65f14f6aaa53e379b93c5544245ef081b3e7 (patch) | |
| tree | a15485f4f1cf547a52b31fa8e16e14b9579b7200 /arch/arm64/kernel/fpsimd.c | |
| parent | ce32d59ee2cd036f6e8a6ed17a06a0b0bec5c67c (diff) | |
| parent | 496f3347d834aec91c38b45d6249ed00f58ad233 (diff) | |
Merge branch 'perm-fix' into omap-for-v4.19/fixes-v2
Diffstat (limited to 'arch/arm64/kernel/fpsimd.c')
| -rw-r--r-- | arch/arm64/kernel/fpsimd.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 84c68b14f1b2..58c53bc96928 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -159,25 +159,6 @@ static void sve_free(struct task_struct *task) __sve_free(task); } -static void change_cpacr(u64 val, u64 mask) -{ - u64 cpacr = read_sysreg(CPACR_EL1); - u64 new = (cpacr & ~mask) | val; - - if (new != cpacr) - write_sysreg(new, CPACR_EL1); -} - -static void sve_user_disable(void) -{ - change_cpacr(0, CPACR_EL1_ZEN_EL0EN); -} - -static void sve_user_enable(void) -{ - change_cpacr(CPACR_EL1_ZEN_EL0EN, CPACR_EL1_ZEN_EL0EN); -} - /* * TIF_SVE controls whether a task can use SVE without trapping while * in userspace, and also the way a task's FPSIMD/SVE state is stored |