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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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10
arch/arm64/kernel/include/thread_info.h
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@@ -1,4 +1,4 @@
/* thread_info.h COPYRIGHT FUJITSU LIMITED 2015-2018 */
/* thread_info.h COPYRIGHT FUJITSU LIMITED 2015-2019 */
#ifndef __HEADER_ARM64_COMMON_THREAD_INFO_H
#define __HEADER_ARM64_COMMON_THREAD_INFO_H
@@ -46,9 +46,9 @@ struct thread_info {
int cpu; /* cpu */
struct cpu_context cpu_context; /* kernel_context */
void *sve_state; /* SVE registers, if any */
uint16_t sve_vl; /* SVE vector length */
uint16_t sve_vl_onexec; /* SVE vl after next exec */
uint16_t sve_flags; /* SVE related flags */
unsigned int sve_vl; /* SVE vector length */
unsigned int sve_vl_onexec; /* SVE vl after next exec */
unsigned long sve_flags; /* SVE related flags */
unsigned long fault_address; /* fault info */
unsigned long fault_code; /* ESR_EL1 value */
};
@@ -56,7 +56,7 @@ struct thread_info {
/* Flags for sve_flags (intentionally defined to match the prctl flags) */
/* Inherit sve_vl and sve_flags across execve(): */
#define THREAD_VL_INHERIT PR_SVE_SET_VL_INHERIT
#define THREAD_VL_INHERIT PR_SVE_VL_INHERIT
struct arm64_cpu_local_thread {
struct thread_info thread_info;