select ARCH_SUPPORTS_ATOMIC_RMW
select ARCH_SUPPORTS_DEBUG_PAGEALLOC
select ARCH_SUPPORTS_HUGETLBFS
+ select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && CC_IS_CLANG
select ARCH_SUPPORTS_NUMA_BALANCING
select ARCH_SUPPORTS_PER_VMA_LOCK
select ARCH_USE_BUILTIN_BSWAP
#include <asm/fpu/api.h>
#include <asm-generic/asm-prototypes.h>
+__int128_t __ashlti3(__int128_t a, int b);
+__int128_t __ashrti3(__int128_t a, int b);
+__int128_t __lshrti3(__int128_t a, int b);
+
#endif /* _ASM_S390_PROTOTYPES_H */
# Makefile for s390-specific library files..
#
-lib-y += delay.o string.o uaccess.o find.o spinlock.o
+lib-y += delay.o string.o uaccess.o find.o spinlock.o tishift.o
obj-y += mem.o xor.o
lib-$(CONFIG_KPROBES) += probes.o
lib-$(CONFIG_UPROBES) += probes.o
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include <linux/linkage.h>
+#include <asm/nospec-insn.h>
+#include <asm/export.h>
+
+ .section .noinstr.text, "ax"
+
+ GEN_BR_THUNK %r14
+
+SYM_FUNC_START(__ashlti3)
+ lmg %r0,%r1,0(%r3)
+ cije %r4,0,1f
+ lhi %r3,64
+ sr %r3,%r4
+ jnh 0f
+ srlg %r3,%r1,0(%r3)
+ sllg %r0,%r0,0(%r4)
+ sllg %r1,%r1,0(%r4)
+ ogr %r0,%r3
+ j 1f
+0: sllg %r0,%r1,-64(%r4)
+ lghi %r1,0
+1: stmg %r0,%r1,0(%r2)
+ BR_EX %r14
+SYM_FUNC_END(__ashlti3)
+EXPORT_SYMBOL(__ashlti3)
+
+SYM_FUNC_START(__ashrti3)
+ lmg %r0,%r1,0(%r3)
+ cije %r4,0,1f
+ lhi %r3,64
+ sr %r3,%r4
+ jnh 0f
+ sllg %r3,%r0,0(%r3)
+ srlg %r1,%r1,0(%r4)
+ srag %r0,%r0,0(%r4)
+ ogr %r1,%r3
+ j 1f
+0: srag %r1,%r0,-64(%r4)
+ srag %r0,%r0,63
+1: stmg %r0,%r1,0(%r2)
+ BR_EX %r14
+SYM_FUNC_END(__ashrti3)
+EXPORT_SYMBOL(__ashrti3)
+
+SYM_FUNC_START(__lshrti3)
+ lmg %r0,%r1,0(%r3)
+ cije %r4,0,1f
+ lhi %r3,64
+ sr %r3,%r4
+ jnh 0f
+ sllg %r3,%r0,0(%r3)
+ srlg %r1,%r1,0(%r4)
+ srlg %r0,%r0,0(%r4)
+ ogr %r1,%r3
+ j 1f
+0: srlg %r1,%r0,-64(%r4)
+ lghi %r0,0
+1: stmg %r0,%r1,0(%r2)
+ BR_EX %r14
+SYM_FUNC_END(__lshrti3)
+EXPORT_SYMBOL(__lshrti3)