OpenBLAS/kernel/power/sbgemv_t_power10.c

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#ifndef SBGEMV_T_MMA_C
#define SBGEMV_T_MMA_C

#define USE_BFGEMV_T_MMA

#ifdef USE_BFGEMV_T_MMA
#include "sbgemv_common_power10.c"

#ifndef BF16GEMV_T_X
#define BF16GEMV_T_X
#define BF16GEMV_T_8 BF16GEMV_T_MMA_8
#define BF16GEMV_T_4 BF16GEMV_T_MMA_4
#define BF16GEMV_T_2 BF16GEMV_T_MMA_2
#define BF16GEMV_T_1 BF16GEMV_T_MMA_1
#endif

#define USE_BFGEMV_8_T_MMA

static void BF16GEMV_T_MMA_1(BLASLONG n, BLASLONG lda, IFLOAT *ap, IFLOAT *x, FLOAT *y, FLOAT alpha)
{
  IFLOAT *a0;
  vec_bf16 *va0, *v_x;
  __vector_quad temp0;
  vec_f32 temp00[4];
  vec_bf16 inp[4];

  __builtin_mma_xxsetaccz(&temp0);

  a0 = ap;
  va0 = (vec_bf16 *)a0;
  v_x = (vec_bf16 *)x;
  BLASLONG n8 = n / 8;
  BLASLONG i = 0;

  for (; i + 4 <= n8; i += 4) {
    vec_load_pair2(inp, &v_x[i]);

    vec_load_mult4_mma(&temp0, &va0[i + 0], inp);
  }

  if (n8 & 2) {
    vec_load_pair((vec_f32 *)inp, (vec_f32 *)&v_x[i]);

    vec_load_mult2_mma(&temp0, &va0[i + 0], inp);

    i += 2;
  }

  if (n8 & 1) {
    inp[0] = (vec_bf16)vec_load_vec(&v_x[i]);

    vec_load_mult_mma(&temp0, &va0[i], inp[0]);

    i++;
  }

  n &= 7;
  if (n) {
    inp[0] = vec_loadN(&v_x[i], n);

    vec_loadN_mult_mma(&temp0, &va0[i], inp[0], n);
  }

  __builtin_mma_disassemble_acc((void*)temp00, &temp0);

  y[0] += (alpha * (temp00[0][0] + temp00[1][1] + temp00[2][2] + temp00[3][3]));
}

static void BF16GEMV_T_MMA_2(BLASLONG n, BLASLONG lda, IFLOAT *ap, IFLOAT *x, FLOAT *y, FLOAT alpha)
{
  IFLOAT *a0, *a1;
  vec_bf16 *va0, *va1, *v_x;
  __vector_quad temp0[2];
  vec_f32 temp00[4*2];
  vec_bf16 inp[4];

  vec_setzero_2(&temp0[0]);

  a0 = ap;
  a1 = ap + lda;
  va0 = (vec_bf16 *)a0;
  va1 = (vec_bf16 *)a1;
  v_x = (vec_bf16 *)x;
  BLASLONG n8 = n / 8;
  BLASLONG i = 0;

  for (; i + 4 <= n8; i += 4) {
    vec_load_pair2(inp, &v_x[i]);

    vec_load_mult42_mma(&temp0[0], &va0[i + 0], &va1[i + 0], inp);
  }

  if (n8 & 2) {
    vec_load_pair((vec_f32 *)inp, (vec_f32 *)&v_x[i]);

    vec_load_mult22_mma(&temp0[0], &va0[i + 0], &va1[i + 0], inp);

    i += 2;
  }

  if (n8 & 1) {
    inp[0] = (vec_bf16)vec_load_vec(&v_x[i]);

    vec_load_mult12a_mma(&temp0[0], &va0[i], &va1[i], inp[0]);

    i++;
  }

  n &= 7;
  if (n) {
    inp[0] = vec_loadN(&v_x[i], n);

    vec_loadN_mult12a_mma(&temp0[0], &va0[i], &va1[i], inp[0], n);
  }

  vec_reduce_2(temp00, &temp0[0]);

  y[0] += (alpha * (temp00[0][0] + temp00[1][1] + temp00[2][2] + temp00[3][3]));
  y[1] += (alpha * (temp00[4][0] + temp00[5][1] + temp00[6][2] + temp00[7][3]));
}

static void BF16GEMV_T_MMA_4(BLASLONG n, BLASLONG lda, IFLOAT *ap, IFLOAT *x, FLOAT *y, FLOAT alpha)
{
  IFLOAT *a0, *a1, *a2, *a3;
  vec_bf16 *va0, *va1, *va2, *va3, *v_x;
  __vector_quad temp0[4];
  vec_f32 temp00[4*4];
  vec_bf16 inp[4];

  vec_setzero_4(&temp0[0]);

  a0 = ap;
  a1 = ap + lda;
  a2 = a1 + lda;
  a3 = a2 + lda;
  va0 = (vec_bf16 *)a0;
  va1 = (vec_bf16 *)a1;
  va2 = (vec_bf16 *)a2;
  va3 = (vec_bf16 *)a3;
  v_x = (vec_bf16 *)x;
  BLASLONG n8 = n / 8;
  BLASLONG i = 0;

  for (; i + 4 <= n8; i += 4) {
    vec_load_pair2(inp, &v_x[i]);

    vec_load_mult44_mma(&temp0[0], &va0[i + 0], &va1[i + 0], &va2[i + 0], &va3[i + 0], inp);
  }

  if (n8 & 2) {
    vec_load_pair((vec_f32 *)inp, (vec_f32 *)&v_x[i]);

    vec_load_mult24_mma(&temp0[0], &va0[i + 0], &va1[i + 0], &va2[i + 0], &va3[i + 0], inp);

    i += 2;
  }

  if (n8 & 1) {
    inp[0] = (vec_bf16)vec_load_vec(&v_x[i]);

    vec_load_mult14_mma(&temp0[0], &va0[i], &va1[i], &va2[i], &va3[i], inp[0]);

    i++;
  }

  n &= 7;
  if (n) {
    inp[0] = vec_loadN(&v_x[i], n);

    vec_loadN_mult14_mma(&temp0[0], &va0[i], &va1[i], &va2[i], &va3[i], inp[0], n);
  }

  vec_reduce_4(temp00, &temp0[0]);

  vec_f32 t0, t1, t2, t3, t4, t5, t6, t7;
  vec_f32 a = { alpha, alpha, alpha, alpha };
  vec_f32 *v_y = (vec_f32 *) y;

  t0 = vec_mergeh(temp00[ 0], temp00[ 4]);
  t1 = vec_mergeh(temp00[ 8], temp00[12]);
  t2 = vec_mergeo(temp00[ 1], temp00[ 5]);
  t3 = vec_mergeo(temp00[ 9], temp00[13]);
  t4 = vec_mergel(temp00[ 2], temp00[ 6]);
  t5 = vec_mergel(temp00[10], temp00[14]);
  t6 = vec_mergeo(temp00[ 3], temp00[ 7]);
  t7 = vec_mergeo(temp00[11], temp00[15]);
  t0 = vec_xxpermdi(t0, t1, 0);
  t2 = vec_xxpermdi(t2, t3, 0);
  t4 = vec_xxpermdi(t4, t5, 0);
  t6 = vec_xxpermdi(t6, t7, 3);

  t0 += t2 + t4 + t6;

  v_y[0] += (a * t0);
}

#ifdef USE_BFGEMV_8_T_MMA
static void BF16GEMV_T_MMA_8(BLASLONG n, BLASLONG lda, IFLOAT *ap, IFLOAT *x, FLOAT *y, FLOAT alpha)
{
  IFLOAT *a0, *a1, *a2, *a3, *a4, *a5, *a6, *a7;
  vec_bf16 *va0, *va1, *va2, *va3, *va4, *va5, *va6, *va7, *v_x;
  __vector_quad temp0[8];
  vec_f32 temp00[4*8];
  vec_bf16 inp[4];

  vec_setzero_8(&temp0[0]);

  BLASLONG lda4 = lda << 2;
  a0 = ap;
  a1 = ap + lda;
  a2 = a1 + lda;
  a3 = a2 + lda;
  a4 = a0 + lda4;
  a5 = a1 + lda4;
  a6 = a2 + lda4;
  a7 = a3 + lda4;
  va0 = (vec_bf16 *)a0;
  va1 = (vec_bf16 *)a1;
  va2 = (vec_bf16 *)a2;
  va3 = (vec_bf16 *)a3;
  va4 = (vec_bf16 *)a4;
  va5 = (vec_bf16 *)a5;
  va6 = (vec_bf16 *)a6;
  va7 = (vec_bf16 *)a7;
  v_x = (vec_bf16 *)x;
  BLASLONG n8 = n / 8;
  BLASLONG i = 0;

  for (; i + 4 <= n8; i += 4) {
    vec_load_pair2(inp, &v_x[i]);

    vec_load_mult44_mma(&temp0[0], &va0[i + 0], &va1[i + 0], &va2[i + 0], &va3[i + 0], inp);
    vec_load_mult44_mma(&temp0[4], &va4[i + 0], &va5[i + 0], &va6[i + 0], &va7[i + 0], inp);
  }

  if (n8 & 2) {
    vec_load_pair((vec_f32 *)inp, (vec_f32 *)&v_x[i]);

    vec_load_mult24_mma(&temp0[0], &va0[i + 0], &va1[i + 0], &va2[i + 0], &va3[i + 0], inp);
    vec_load_mult24_mma(&temp0[4], &va4[i + 0], &va5[i + 0], &va6[i + 0], &va7[i + 0], inp);

    i += 2;
  }

  if (n8 & 1) {
    inp[0] = (vec_bf16)vec_load_vec(&v_x[i]);

    vec_load_mult14_mma(&temp0[0], &va0[i], &va1[i], &va2[i], &va3[i], inp[0]);
    vec_load_mult14_mma(&temp0[4], &va4[i], &va5[i], &va6[i], &va7[i], inp[0]);

    i++;
  }

  n &= 7;
  if (n) {
    inp[0] = vec_loadN(&v_x[i], n);

    vec_loadN_mult14_mma(&temp0[0], &va0[i], &va1[i], &va2[i], &va3[i], inp[0], n);
    vec_loadN_mult14_mma(&temp0[4], &va4[i], &va5[i], &va6[i], &va7[i], inp[0], n);
  }

  vec_reduce_8(temp00, &temp0[0]);

  vec_f32 t0, t1, t2, t3, t4, t5, t6, t7, t10, t11, t12, t13, t14, t15, t16, t17;
  vec_f32 a = { alpha, alpha, alpha, alpha };
  vec_f32 *v_y = (vec_f32 *) y;

  t0 = vec_mergeh(temp00[ 0], temp00[ 4]);
  t1 = vec_mergeh(temp00[ 8], temp00[12]);
  t2 = vec_mergeo(temp00[ 1], temp00[ 5]);
  t3 = vec_mergeo(temp00[ 9], temp00[13]);
  t4 = vec_mergel(temp00[ 2], temp00[ 6]);
  t5 = vec_mergel(temp00[10], temp00[14]);
  t6 = vec_mergeo(temp00[ 3], temp00[ 7]);
  t7 = vec_mergeo(temp00[11], temp00[15]);
  t0 = vec_xxpermdi(t0, t1, 0);
  t2 = vec_xxpermdi(t2, t3, 0);
  t4 = vec_xxpermdi(t4, t5, 0);
  t6 = vec_xxpermdi(t6, t7, 3);

  t0 += t2 + t4 + t6;

  t10 = vec_mergeh(temp00[16], temp00[20]);
  t11 = vec_mergeh(temp00[24], temp00[28]);
  t12 = vec_mergeo(temp00[17], temp00[21]);
  t13 = vec_mergeo(temp00[25], temp00[29]);
  t14 = vec_mergel(temp00[18], temp00[22]);
  t15 = vec_mergel(temp00[26], temp00[30]);
  t16 = vec_mergeo(temp00[19], temp00[23]);
  t17 = vec_mergeo(temp00[27], temp00[31]);
  t10 = vec_xxpermdi(t10, t11, 0);
  t12 = vec_xxpermdi(t12, t13, 0);
  t14 = vec_xxpermdi(t14, t15, 0);
  t16 = vec_xxpermdi(t16, t17, 3);

  t10 += t12 + t14 + t16;

  vec_f32 inp2[2];
  vec_load_pair(inp2, v_y);
  inp2[0] += (a * t0);
  inp2[1] += (a * t10);
  vec_store_pair(v_y, inp2);
}
#endif

#include "sbgemv_t.c"
#else
#include "sbgemv_t_vsx.c"
#endif
#endif