--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright IBM Corp. 1999, 2024
+ */
+
+#ifndef __ASM_S390_ACCESS_REGS_H
+#define __ASM_S390_ACCESS_REGS_H
+
+#include <linux/instrumented.h>
+#include <asm/sigcontext.h>
+
+struct access_regs {
+ unsigned int regs[NUM_ACRS];
+};
+
+static inline void save_access_regs(unsigned int *acrs)
+{
+ struct access_regs *regs = (struct access_regs *)acrs;
+
+ instrument_write(regs, sizeof(*regs));
+ asm volatile("stamy 0,15,%[regs]"
+ : [regs] "=QS" (*regs)
+ :
+ : "memory");
+}
+
+static inline void restore_access_regs(unsigned int *acrs)
+{
+ struct access_regs *regs = (struct access_regs *)acrs;
+
+ instrument_read(regs, sizeof(*regs));
+ asm volatile("lamy 0,15,%[regs]"
+ :
+ : [regs] "QS" (*regs)
+ : "memory");
+}
+
+#endif /* __ASM_S390_ACCESS_REGS_H */
#include <linux/thread_info.h>
#include <asm/fpu/api.h>
+#include <asm/access-regs.h>
#include <asm/ptrace.h>
#include <asm/guarded_storage.h>
extern struct task_struct *__switch_to(void *, void *);
extern void update_cr_regs(struct task_struct *task);
-static inline void save_access_regs(unsigned int *acrs)
-{
- typedef struct { int _[NUM_ACRS]; } acrstype;
-
- asm volatile("stam 0,15,%0" : "=Q" (*(acrstype *)acrs));
-}
-
-static inline void restore_access_regs(unsigned int *acrs)
-{
- typedef struct { int _[NUM_ACRS]; } acrstype;
-
- asm volatile("lam 0,15,%0" : : "Q" (*(acrstype *)acrs));
-}
-
#define switch_to(prev, next, last) do { \
/* save_fpu_regs() sets the CIF_FPU flag, which enforces \
* a restore of the floating point / vector registers as \
#include <linux/tty.h>
#include <linux/personality.h>
#include <linux/binfmts.h>
+#include <asm/access-regs.h>
#include <asm/ucontext.h>
#include <linux/uaccess.h>
#include <asm/lowcore.h>
-#include <asm/switch_to.h>
#include <asm/vdso.h>
#include <asm/fpu/api.h>
#include "compat_linux.h"
#include <linux/kernel.h>
#include <asm/asm-extable.h>
#include <linux/memblock.h>
+#include <asm/access-regs.h>
+#include <asm/fpu/api.h>
#include <asm/diag.h>
#include <asm/ebcdic.h>
#include <asm/ipl.h>
#include <asm/sclp.h>
#include <asm/facility.h>
#include <asm/boot_data.h>
-#include <asm/switch_to.h>
#include "entry.h"
#define decompressor_handled_param(param) \
#include <linux/seccomp.h>
#include <linux/compat.h>
#include <trace/syscall.h>
+#include <asm/access-regs.h>
#include <asm/page.h>
#include <linux/uaccess.h>
#include <asm/unistd.h>
#include <linux/compat.h>
#include <asm/ucontext.h>
#include <linux/uaccess.h>
+#include <asm/access-regs.h>
#include <asm/lowcore.h>
-#include <asm/switch_to.h>
#include <asm/vdso.h>
#include "entry.h"
#include <linux/sched/task_stack.h>
#include <linux/crash_dump.h>
#include <linux/kprobes.h>
+#include <asm/access-regs.h>
#include <asm/asm-offsets.h>
#include <asm/ctlreg.h>
#include <asm/pfault.h>
#include <asm/diag.h>
-#include <asm/switch_to.h>
#include <asm/facility.h>
#include <asm/ipl.h>
#include <asm/setup.h>
#include <linux/err.h>
#include <linux/pgtable.h>
#include <linux/bitfield.h>
+#include <asm/access-regs.h>
#include <asm/fault.h>
#include <asm/gmap.h>
#include "kvm-s390.h"
#include "gaccess.h"
-#include <asm/switch_to.h>
union asce {
unsigned long val;
#include <linux/slab.h>
#include <linux/bitmap.h>
#include <linux/vmalloc.h>
+#include <asm/access-regs.h>
#include <asm/asm-offsets.h>
#include <asm/dis.h>
#include <linux/uaccess.h>
#include <asm/sclp.h>
#include <asm/isc.h>
#include <asm/gmap.h>
-#include <asm/switch_to.h>
#include <asm/nmi.h>
#include <asm/airq.h>
#include <asm/tpi.h>
#include <linux/pgtable.h>
#include <linux/mmu_notifier.h>
+#include <asm/access-regs.h>
#include <asm/asm-offsets.h>
#include <asm/lowcore.h>
#include <asm/stp.h>
#include <asm/gmap.h>
#include <asm/nmi.h>
-#include <asm/switch_to.h>
#include <asm/isc.h>
#include <asm/sclp.h>
#include <asm/cpacf.h>