diff mbox series

[v2,08/18] target/ppc: Use clmul_16* routines

Message ID 20230819010218.192706-9-richard.henderson@linaro.org
State Superseded
Headers show
Series crypto: Provide clmul.h and host accel | expand

Commit Message

Richard Henderson Aug. 19, 2023, 1:02 a.m. UTC 
Use generic routines for 16-bit carry-less multiply.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/ppc/int_helper.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index 343874863a..10e19d8c9b 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -1438,6 +1438,14 @@  void helper_vpmsumb(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
     }
 }
 
+void helper_vpmsumh(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
+{
+    for (int i = 0; i < 2; ++i) {
+        uint64_t aa = a->u64[i], bb = b->u64[i];
+        r->u64[i] = clmul_16x2_even(aa, bb) ^ clmul_16x2_odd(aa, bb);
+    }
+}
+
 #define PMSUM(name, srcfld, trgfld, trgtyp)                   \
 void helper_##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)  \
 {                                                             \
@@ -1458,7 +1466,6 @@  void helper_##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)  \
     }                                                         \
 }
 
-PMSUM(vpmsumh, u16, u32, uint32_t)
 PMSUM(vpmsumw, u32, u64, uint64_t)
 
 void helper_VPMSUMD(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)