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arm64: Scalable Vector Extension (SVE) support.

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Change-Id: I3568687913f583edfaa297d5cf5ac91d319d97e9
This commit is contained in:
Shiratori, Takehiro
2019-02-21 11:29:33 +09:00
committed by Masamichi Takagi
parent dac99f708c
commit 07aa96ef95
15 changed files with 490 additions and 223 deletions
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9
arch/arm64/kernel/cpu.c
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@@ -951,7 +951,7 @@ void ihk_mc_boot_cpu(int cpuid, unsigned long pc)
setup_cpu_features();
}
init_sve_vl();
sve_setup();
}
/* for ihk_mc_init_context() */
@@ -1001,9 +1001,10 @@ void ihk_mc_init_context(ihk_mc_kernel_context_t *new_ctx,
const int lcpuid = ihk_mc_get_processor_id();
const unsigned long syscallno = current_pt_regs()->syscallno;
#ifdef CONFIG_ARM64_SVE
const uint16_t orig_sve_vl = current_thread_info()->sve_vl;
const uint16_t orig_sve_vl_onexec = current_thread_info()->sve_vl_onexec;
const uint16_t orig_sve_flags = current_thread_info()->sve_flags;
struct thread_info *ti = current_thread_info();
const unsigned int orig_sve_vl = ti->sve_vl;
const unsigned int orig_sve_vl_onexec = ti->sve_vl_onexec;
const unsigned long orig_sve_flags = ti->sve_flags;
#endif /* CONFIG_ARM64_SVE */
/* get kernel stack address */