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| author | Richard Henderson <richard.henderson@linaro.org> | 2023-07-11 09:35:30 +0100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-09-15 13:57:00 +0000 |
| commit | 25c304e93612b5a0ad75c55d43d596b6d3271aad (patch) | |
| tree | 7ec72c0130529d63189c0d4cf8e280ef349b8813 /target/s390x | |
| parent | c6f0dcb1fdee2b1c2af15cea75bee98327308a8e (diff) | |
| download | qemu-25c304e93612b5a0ad75c55d43d596b6d3271aad.zip qemu-25c304e93612b5a0ad75c55d43d596b6d3271aad.tar.gz qemu-25c304e93612b5a0ad75c55d43d596b6d3271aad.tar.bz2 | |
target/s390x: Use clmul_16* routines
Use generic routines for 16-bit carry-less multiply.
Remove our local version of galois_multiply16.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/s390x')
| -rw-r--r-- | target/s390x/tcg/vec_int_helper.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/target/s390x/tcg/vec_int_helper.c b/target/s390x/tcg/vec_int_helper.c index edff4d6..1147755 100644 --- a/target/s390x/tcg/vec_int_helper.c +++ b/target/s390x/tcg/vec_int_helper.c @@ -180,7 +180,6 @@ static uint##TBITS##_t galois_multiply##BITS(uint##TBITS##_t a, \ } \ return res; \ } -DEF_GALOIS_MULTIPLY(16, 32) DEF_GALOIS_MULTIPLY(32, 64) static S390Vector galois_multiply64(uint64_t a, uint64_t b) @@ -231,6 +230,30 @@ void HELPER(gvec_vgfma8)(void *v1, const void *v2, const void *v3, q1[1] = do_gfma8(q2[1], q3[1], q4[1]); } +static inline uint64_t do_gfma16(uint64_t n, uint64_t m, uint64_t a) +{ + return clmul_16x2_even(n, m) ^ clmul_16x2_odd(n, m) ^ a; +} + +void HELPER(gvec_vgfm16)(void *v1, const void *v2, const void *v3, uint32_t d) +{ + uint64_t *q1 = v1; + const uint64_t *q2 = v2, *q3 = v3; + + q1[0] = do_gfma16(q2[0], q3[0], 0); + q1[1] = do_gfma16(q2[1], q3[1], 0); +} + +void HELPER(gvec_vgfma16)(void *v1, const void *v2, const void *v3, + const void *v4, uint32_t d) +{ + uint64_t *q1 = v1; + const uint64_t *q2 = v2, *q3 = v3, *q4 = v4; + + q1[0] = do_gfma16(q2[0], q3[0], q4[0]); + q1[1] = do_gfma16(q2[1], q3[1], q4[1]); +} + #define DEF_VGFM(BITS, TBITS) \ void HELPER(gvec_vgfm##BITS)(void *v1, const void *v2, const void *v3, \ uint32_t desc) \ @@ -248,7 +271,6 @@ void HELPER(gvec_vgfm##BITS)(void *v1, const void *v2, const void *v3, \ s390_vec_write_element##TBITS(v1, i, d); \ } \ } -DEF_VGFM(16, 32) DEF_VGFM(32, 64) void HELPER(gvec_vgfm64)(void *v1, const void *v2, const void *v3, @@ -284,7 +306,6 @@ void HELPER(gvec_vgfma##BITS)(void *v1, const void *v2, const void *v3, \ s390_vec_write_element##TBITS(v1, i, d); \ } \ } -DEF_VGFMA(16, 32) DEF_VGFMA(32, 64) void HELPER(gvec_vgfma64)(void *v1, const void *v2, const void *v3, |