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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 10:10:17 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 10:10:17 +0000 |
| commit | 9db5397d87fc212863d4750c85ff8b9a6ed42b95 (patch) | |
| tree | 1bd4e8854203c575eabaa99e2c509f8886065733 /arch/arm64/kernel/fpsimd.c | |
| parent | Adding upstream version 6.1.76. (diff) | |
| download | linux-upstream/6.1.82.tar.xz linux-upstream/6.1.82.zip | |
Adding upstream version 6.1.82.upstream/6.1.82
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm64/kernel/fpsimd.c')
| -rw-r--r-- | arch/arm64/kernel/fpsimd.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 8c226d79a..59b5a16ba 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -1347,6 +1347,20 @@ void __init sme_setup(void) get_sme_default_vl()); } +void sme_suspend_exit(void) +{ + u64 smcr = 0; + + if (!system_supports_sme()) + return; + + if (system_supports_fa64()) + smcr |= SMCR_ELx_FA64; + + write_sysreg_s(smcr, SYS_SMCR_EL1); + write_sysreg_s(0, SYS_SMPRI_EL1); +} + #endif /* CONFIG_ARM64_SME */ static void sve_init_regs(void) |