diff options
Diffstat (limited to 'crypto/s390xcpuid.S')
| -rw-r--r-- | crypto/s390xcpuid.S | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/crypto/s390xcpuid.S b/crypto/s390xcpuid.S new file mode 100644 index 0000000000..b053c6a281 --- /dev/null +++ b/crypto/s390xcpuid.S @@ -0,0 +1,92 @@ +.text + +.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) + larl %r1,OPENSSL_s390xcap_P + stg %r2,0(%r1) + 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 + clgr %r3,%r0 + bcr 8,%r14 +.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 + +.section .init + brasl %r14,OPENSSL_cpuid_setup + +.comm OPENSSL_s390xcap_P,8,8 |