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Diffstat (limited to 'arch/arm64/kernel/fpsimd.c')
-rw-r--r--arch/arm64/kernel/fpsimd.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index a5dc6f764195..f27acca550d5 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -1311,6 +1311,22 @@ 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;
+ if (system_supports_sme2())
+ smcr |= SMCR_ELx_EZT0;
+
+ write_sysreg_s(smcr, SYS_SMCR_EL1);
+ write_sysreg_s(0, SYS_SMPRI_EL1);
+}
+
#endif /* CONFIG_ARM64_SME */
static void sve_init_regs(void)
@@ -1635,7 +1651,7 @@ void fpsimd_preserve_current_state(void)
void fpsimd_signal_preserve_current_state(void)
{
fpsimd_preserve_current_state();
- if (test_thread_flag(TIF_SVE))
+ if (current->thread.fp_type == FP_STATE_SVE)
sve_to_fpsimd(current);
}