Merge tag 's390-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

[linux-2.6-microblaze.git] / arch / s390 / include / asm / switch_to.h

diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
deleted file mode 100644 (file)
index c61b2cc..0000000
--- a/arch/s390/include/asm/switch_to.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright IBM Corp. 1999, 2009
- *
- * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
- */
-
-#ifndef __ASM_SWITCH_TO_H
-#define __ASM_SWITCH_TO_H
-
-#include <linux/thread_info.h>
-#include <asm/fpu/api.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        \
-        * soon as the next task returns to user space                  \
-        */                                                             \
-       save_fpu_regs();                                                \
-       save_access_regs(&prev->thread.acrs[0]);                        \
-       save_ri_cb(prev->thread.ri_cb);                                 \
-       save_gs_cb(prev->thread.gs_cb);                                 \
-       update_cr_regs(next);                                           \
-       restore_access_regs(&next->thread.acrs[0]);                     \
-       restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb);          \
-       restore_gs_cb(next->thread.gs_cb);                              \
-       prev = __switch_to(prev, next);                                 \
-} while (0)
-
-#endif /* __ASM_SWITCH_TO_H */