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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/isa-l/erasure_code/ppc64le/gf_2vect_dot_prod_vsx.c | |
parent | Initial commit. (diff) | |
download | ceph-6d07fdb6bb33b1af39833b850bb6cf8af79fe293.tar.xz ceph-6d07fdb6bb33b1af39833b850bb6cf8af79fe293.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/isa-l/erasure_code/ppc64le/gf_2vect_dot_prod_vsx.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/isa-l/erasure_code/ppc64le/gf_2vect_dot_prod_vsx.c b/src/isa-l/erasure_code/ppc64le/gf_2vect_dot_prod_vsx.c new file mode 100644 index 000000000..3cb269cce --- /dev/null +++ b/src/isa-l/erasure_code/ppc64le/gf_2vect_dot_prod_vsx.c @@ -0,0 +1,83 @@ +#include "ec_base_vsx.h" + +void gf_2vect_dot_prod_vsx(int len, int vlen, unsigned char *gftbls, + unsigned char **src, unsigned char **dest) +{ + unsigned char *s, *t0, *t1; + vector unsigned char vX1, vX2, vX3, vX4; + vector unsigned char vY1, vY2, vY3, vY4; + vector unsigned char vYD, vYE, vYF, vYG; + vector unsigned char vhi0, vlo0, vhi1, vlo1; + int i, j, head; + + if (vlen < 128) { + gf_vect_mul_vsx(len, &gftbls[0 * 32 * vlen], src[0], (unsigned char *)dest[0]); + gf_vect_mul_vsx(len, &gftbls[1 * 32 * vlen], src[0], (unsigned char *)dest[1]); + + for (j = 1; j < vlen; j++) { + gf_2vect_mad_vsx(len, vlen, j, gftbls, src[j], dest); + } + return; + } + + t0 = (unsigned char *)dest[0]; + t1 = (unsigned char *)dest[1]; + + head = len % 64; + if (head != 0) { + gf_vect_dot_prod_base(head, vlen, &gftbls[0 * 32 * vlen], src, t0); + gf_vect_dot_prod_base(head, vlen, &gftbls[1 * 32 * vlen], src, t1); + } + + for (i = head; i < len - 63; i += 64) { + vY1 = vY1 ^ vY1; + vY2 = vY2 ^ vY2; + vY3 = vY3 ^ vY3; + vY4 = vY4 ^ vY4; + + vYD = vYD ^ vYD; + vYE = vYE ^ vYE; + vYF = vYF ^ vYF; + vYG = vYG ^ vYG; + + unsigned char *g0 = &gftbls[0 * 32 * vlen]; + unsigned char *g1 = &gftbls[1 * 32 * vlen]; + + for (j = 0; j < vlen; j++) { + s = (unsigned char *)src[j]; + vX1 = vec_xl(0, s + i); + vX2 = vec_xl(16, s + i); + vX3 = vec_xl(32, s + i); + vX4 = vec_xl(48, s + i); + + vlo0 = EC_vec_xl(0, g0); + vhi0 = EC_vec_xl(16, g0); + vlo1 = EC_vec_xl(0, g1); + vhi1 = EC_vec_xl(16, g1); + + vY1 = vY1 ^ EC_vec_permxor(vhi0, vlo0, vX1); + vY2 = vY2 ^ EC_vec_permxor(vhi0, vlo0, vX2); + vYD = vYD ^ EC_vec_permxor(vhi0, vlo0, vX3); + vYE = vYE ^ EC_vec_permxor(vhi0, vlo0, vX4); + + vY3 = vY3 ^ EC_vec_permxor(vhi1, vlo1, vX1); + vY4 = vY4 ^ EC_vec_permxor(vhi1, vlo1, vX2); + vYF = vYF ^ EC_vec_permxor(vhi1, vlo1, vX3); + vYG = vYG ^ EC_vec_permxor(vhi1, vlo1, vX4); + + g0 += 32; + g1 += 32; + } + + vec_xst(vY1, 0, t0 + i); + vec_xst(vY2, 16, t0 + i); + vec_xst(vY3, 0, t1 + i); + vec_xst(vY4, 16, t1 + i); + + vec_xst(vYD, 32, t0 + i); + vec_xst(vYE, 48, t0 + i); + vec_xst(vYF, 32, t1 + i); + vec_xst(vYG, 48, t1 + i); + } + return; +} |