1 files changed, 90 insertions, 0 deletions
diff --git a/lib/libcrypto/s390xcpuid.S b/lib/libcrypto/s390xcpuid.S
new file mode 100644
index 00000000000..8500133ad0f
--- /dev/null
+++ b/lib/libcrypto/s390xcpuid.S
@@ -0,0 +1,90 @@
+.text
+
+.globl	OPENSSL_cpuid_setup
+.type	OPENSSL_cpuid_setup,@function
+.align	16
+OPENSSL_cpuid_setup:
+	br	%r14		# reserved for future
+.size	OPENSSL_cpuid_setup,.-OPENSSL_cpuid_setup
+
+.globl	OPENSSL_s390x_facilities
+.type	OPENSSL_s390x_facilities,@function
+.align	16
+OPENSSL_s390x_facilities:
+	lghi	%r0,0
+	.long	0xb2b0f010	# stfle	16(%r15)
+	lg	%r2,16(%r15)
+	br	%r14
+.size	OPENSSL_s390x_facilities,.-OPENSSL_s390x_facilities
+
+.globl	OPENSSL_rdtsc
+.type	OPENSSL_rdtsc,@function
+.align	16
+OPENSSL_rdtsc:
+	stck	16(%r15)
+	lg	%r2,16(%r15)
+	br	%r14
+.size	OPENSSL_rdtsc,.-OPENSSL_rdtsc
+
+.globl	OPENSSL_atomic_add
+.type	OPENSSL_atomic_add,@function
+.align	16
+OPENSSL_atomic_add:
+	l	%r1,0(%r2)
+.Lspin:	lr	%r0,%r1
+	ar	%r0,%r3
+	cs	%r1,%r0,0(%r2)
+	brc	4,.Lspin
+	lgfr	%r2,%r0		# OpenSSL expects the new value
+	br	%r14
+.size	OPENSSL_atomic_add,.-OPENSSL_atomic_add
+
+.globl	OPENSSL_wipe_cpu
+.type	OPENSSL_wipe_cpu,@function
+.align	16
+OPENSSL_wipe_cpu:
+	xgr	%r0,%r0
+	xgr	%r1,%r1
+	lgr	%r2,%r15
+	xgr	%r3,%r3
+	xgr	%r4,%r4
+	lzdr	%f0
+	lzdr	%f1
+	lzdr	%f2
+	lzdr	%f3
+	lzdr	%f4
+	lzdr	%f5
+	lzdr	%f6
+	lzdr	%f7
+	br	%r14
+.size	OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
+
+.globl	OPENSSL_cleanse
+.type	OPENSSL_cleanse,@function
+.align	16
+OPENSSL_cleanse:
+	lghi	%r4,15
+	lghi	%r0,0
+	clgr	%r3,%r4
+	jh	.Lot
+.Little:
+	stc	%r0,0(%r2)
+	la	%r2,1(%r2)
+	brctg	%r3,.Little
+	br	%r14
+.align	4
+.Lot:	tmll	%r2,7
+	jz	.Laligned
+	stc	%r0,0(%r2)
+	la	%r2,1(%r2)
+	brctg	%r3,.Lot
+.Laligned:
+	srlg	%r4,%r3,3
+.Loop:	stg	%r0,0(%r2)
+	la	%r2,8(%r2)
+	brctg	%r4,.Loop
+	lghi	%r4,7
+	ngr	%r3,%r4
+	jnz	.Little
+	br	%r14
+.size	OPENSSL_cleanse,.-OPENSSL_cleanse