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//
// Copyright (C) 2022 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#if NCNN_RUNTIME_CPU && NCNN_MMI && !__mips_msa && !__mips_loongson_mmi
void im2col_sgemm_int8_loongson_mmi(const Mat& bottom_im2col, Mat& top_blob, const Mat& kernel, const Option& opt);
void convolution_im2col_sgemm_transform_kernel_int8_loongson_mmi(const Mat& _kernel, Mat& kernel_tm, int inch, int outch, int kernel_w, int kernel_h);
#endif
static void im2col_sgemm_int8_msa(const Mat& bottom_im2col, Mat& top_blob, const Mat& kernel, const Option& opt)
{
#if NCNN_RUNTIME_CPU && NCNN_MMI && !__mips_msa && !__mips_loongson_mmi
if (ncnn::cpu_support_loongson_mmi())
{
im2col_sgemm_int8_loongson_mmi(bottom_im2col, top_blob, kernel, opt);
return;
}
#endif
// Mat bottom_im2col(size, maxk, inch, 8u, 8, opt.workspace_allocator);
const int size = bottom_im2col.w;
const int maxk = bottom_im2col.h;
const int inch = bottom_im2col.c;
const int outch = top_blob.c;
// permute
Mat tmp;
#if __mips_msa || __mips_loongson_mmi
if (inch >= 4)
{
if (size >= 2)
tmp.create(2 * maxk, inch / 4 + inch % 4, size / 2 + size % 2, 4u, 4, opt.workspace_allocator);
else
tmp.create(maxk, inch / 4 + inch % 4, size, 4u, 4, opt.workspace_allocator);
}
else
#endif // __mips_msa || __mips_loongson_mmi
{
if (size >= 2)
tmp.create(2 * maxk, inch, size / 2 + size % 2, 1u, 1, opt.workspace_allocator);
else
tmp.create(maxk, inch, size, 1u, 1, opt.workspace_allocator);
}
{
int remain_size_start = 0;
int nn_size = (size - remain_size_start) >> 1;
#pragma omp parallel for num_threads(opt.num_threads)
for (int ii = 0; ii < nn_size; ii++)
{
int i = remain_size_start + ii * 2;
signed char* tmpptr = tmp.channel(i / 2);
int q = 0;
#if __mips_msa || __mips_loongson_mmi
for (; q + 3 < inch; q += 4)
{
const signed char* img0 = (const signed char*)bottom_im2col.channel(q) + i;
const signed char* img1 = (const signed char*)bottom_im2col.channel(q + 1) + i;
const signed char* img2 = (const signed char*)bottom_im2col.channel(q + 2) + i;
const signed char* img3 = (const signed char*)bottom_im2col.channel(q + 3) + i;
for (int k = 0; k < maxk; k++)
{
#if __mips_loongson_mmi
tmpptr[0] = img0[0];
tmpptr[1] = img1[0];
tmpptr[2] = img0[1];
tmpptr[3] = img1[1];
tmpptr[4] = img2[0];
tmpptr[5] = img3[0];
tmpptr[6] = img2[1];
tmpptr[7] = img3[1];
#else // __mips_loongson_mmi
tmpptr[0] = img0[0];
tmpptr[1] = img1[0];
tmpptr[2] = img2[0];
tmpptr[3] = img3[0];
tmpptr[4] = img0[1];
tmpptr[5] = img1[1];
tmpptr[6] = img2[1];
tmpptr[7] = img3[1];
#endif // __mips_loongson_mmi
tmpptr += 8;
img0 += size;
img1 += size;
img2 += size;
img3 += size;
}
}
#endif // __mips_msa || __mips_loongson_mmi
for (; q < inch; q++)
{
const signed char* img0 = (const signed char*)bottom_im2col.channel(q) + i;
for (int k = 0; k < maxk; k++)
{
tmpptr[0] = img0[0];
tmpptr[1] = img0[1];
tmpptr += 2;
img0 += size;
}
}
}
remain_size_start += nn_size << 1;
#pragma omp parallel for num_threads(opt.num_threads)
for (int i = remain_size_start; i < size; i++)
{
signed char* tmpptr = tmp.channel(i / 2 + i % 2);
int q = 0;
#if __mips_msa || __mips_loongson_mmi
for (; q + 3 < inch; q += 4)
{
const signed char* img0 = (const signed char*)bottom_im2col.channel(q) + i;
const signed char* img1 = (const signed char*)bottom_im2col.channel(q + 1) + i;
const signed char* img2 = (const signed char*)bottom_im2col.channel(q + 2) + i;
const signed char* img3 = (const signed char*)bottom_im2col.channel(q + 3) + i;
for (int k = 0; k < maxk; k++)
{
tmpptr[0] = img0[0];
tmpptr[1] = img1[0];
tmpptr[2] = img2[0];
tmpptr[3] = img3[0];
tmpptr += 4;
img0 += size;
img1 += size;
img2 += size;
img3 += size;
}
}
#endif // __mips_msa || __mips_loongson_mmi
for (; q < inch; q++)
{
const signed char* img0 = (const signed char*)bottom_im2col.channel(q) + i;
for (int k = 0; k < maxk; k++)
{
tmpptr[0] = img0[0];
tmpptr += 1;
img0 += size;
}
}
}
}
#if __mips_msa
int nn_outch = outch >> 2;
int remain_outch_start = nn_outch << 2;
#pragma omp parallel for num_threads(opt.num_threads)
for (int pp = 0; pp < nn_outch; pp++)
{
int p = pp * 4;
int* outptr0 = top_blob.channel(p);
int* outptr1 = top_blob.channel(p + 1);
int* outptr2 = top_blob.channel(p + 2);
int* outptr3 = top_blob.channel(p + 3);
int i = 0;
for (; i + 1 < size; i += 2)
{
const signed char* tmpptr = tmp.channel(i / 2);
const signed char* kptr = kernel.channel(p / 4);
int nn4 = (inch / 4) * maxk;
int nn1 = (inch % 4) * maxk;
v4i32 _sum00 = __msa_fill_w(0);
v4i32 _sum10 = __msa_fill_w(0);
if (nn4 > 0)
{
v4i32 _sum01 = __msa_fill_w(0);
v4i32 _sum02 = __msa_fill_w(0);
v4i32 _sum03 = __msa_fill_w(0);
v4i32 _sum11 = __msa_fill_w(0);
v4i32 _sum12 = __msa_fill_w(0);
v4i32 _sum13 = __msa_fill_w(0);
int j = 0;
for (; j < nn4; j++)
{
v16i8 _val = __msa_ld_b(tmpptr, 0);
v8i16 _val01 = (v8i16)__msa_ilvr_b(__msa_clti_s_b(_val, 0), _val);
v8i16 _val0 = (v8i16)__msa_ilvr_d((v2i64)_val01, (v2i64)_val01);
v8i16 _val1 = (v8i16)__msa_ilvl_d((v2i64)_val01, (v2i64)_val01);
v16i8 _w01 = __msa_ld_b(kptr, 0);
v16i8 _extw01 = __msa_clti_s_b(_w01, 0);
v8i16 _w0 = (v8i16)__msa_ilvr_b(_extw01, _w01);
v8i16 _w1 = (v8i16)__msa_ilvl_b(_extw01, _w01);
v8i16 _s00 = __msa_mulv_h(_val0, _w0);
v8i16 _s01 = __msa_mulv_h(_val0, _w1);
v8i16 _s10 = __msa_mulv_h(_val1, _w0);
v8i16 _s11 = __msa_mulv_h(_val1, _w1);
v8i16 _exts00 = __msa_clti_s_h(_s00, 0);
v8i16 _exts01 = __msa_clti_s_h(_s01, 0);
v8i16 _exts10 = __msa_clti_s_h(_s10, 0);
v8i16 _exts11 = __msa_clti_s_h(_s11, 0);
v4i32 _s00l = (v4i32)__msa_ilvr_h(_exts00, _s00);
v4i32 _s00h = (v4i32)__msa_ilvl_h(_exts00, _s00);
v4i32 _s01l = (v4i32)__msa_ilvr_h(_exts01, _s01);
v4i32 _s01h = (v4i32)__msa_ilvl_h(_exts01, _s01);
v4i32 _s10l = (v4i32)__msa_ilvr_h(_exts10, _s10);
v4i32 _s10h = (v4i32)__msa_ilvl_h(_exts10, _s10);
v4i32 _s11l = (v4i32)__msa_ilvr_h(_exts11, _s11);
v4i32 _s11h = (v4i32)__msa_ilvl_h(_exts11, _s11);
_sum00 = __msa_addv_w(_sum00, _s00l);
_sum01 = __msa_addv_w(_sum01, _s00h);
_sum02 = __msa_addv_w(_sum02, _s01l);
_sum03 = __msa_addv_w(_sum03, _s01h);
_sum10 = __msa_addv_w(_sum10, _s10l);
_sum11 = __msa_addv_w(_sum11, _s10h);
_sum12 = __msa_addv_w(_sum12, _s11l);
_sum13 = __msa_addv_w(_sum13, _s11h);
tmpptr += 8;
kptr += 16;
}
// transpose 4x4
{
v4i32 _tmp0, _tmp1, _tmp2, _tmp3;
_tmp0 = __msa_ilvr_w(_sum01, _sum00);
_tmp1 = __msa_ilvr_w(_sum03, _sum02);
_tmp2 = __msa_ilvl_w(_sum01, _sum00);
_tmp3 = __msa_ilvl_w(_sum03, _sum02);
_sum00 = (v4i32)__msa_ilvr_d((v2i64)_tmp1, (v2i64)_tmp0);
_sum01 = (v4i32)__msa_ilvl_d((v2i64)_tmp1, (v2i64)_tmp0);
_sum02 = (v4i32)__msa_ilvr_d((v2i64)_tmp3, (v2i64)_tmp2);
_sum03 = (v4i32)__msa_ilvl_d((v2i64)_tmp3, (v2i64)_tmp2);
}
{
v4i32 _tmp0, _tmp1, _tmp2, _tmp3;
_tmp0 = __msa_ilvr_w(_sum11, _sum10);
_tmp1 = __msa_ilvr_w(_sum13, _sum12);
_tmp2 = __msa_ilvl_w(_sum11, _sum10);
_tmp3 = __msa_ilvl_w(_sum13, _sum12);
_sum10 = (v4i32)__msa_ilvr_d((v2i64)_tmp1, (v2i64)_tmp0);
_sum11 = (v4i32)__msa_ilvl_d((v2i64)_tmp1, (v2i64)_tmp0);
_sum12 = (v4i32)__msa_ilvr_d((v2i64)_tmp3, (v2i64)_tmp2);
_sum13 = (v4i32)__msa_ilvl_d((v2i64)_tmp3, (v2i64)_tmp2);
}
_sum00 = __msa_addv_w(_sum00, _sum01);
_sum02 = __msa_addv_w(_sum02, _sum03);
_sum10 = __msa_addv_w(_sum10, _sum11);
_sum12 = __msa_addv_w(_sum12, _sum13);
_sum00 = __msa_addv_w(_sum00, _sum02);
_sum10 = __msa_addv_w(_sum10, _sum12);
}
int j = 0;
for (; j < nn1; j++)
{
v8i16 _val0 = __msa_fill_h(tmpptr[0]);
v8i16 _val1 = __msa_fill_h(tmpptr[1]);
v8i16 _val = (v8i16)__msa_ilvr_d((v2i64)_val1, (v2i64)_val0);
v16i8 _w = __msa_ld_b(kptr, 0);
v8i16 _w16 = (v8i16)__msa_ilvr_b(__msa_clti_s_b(_w, 0), _w);
_w16 = (v8i16)__msa_ilvr_d((v2i64)_w16, (v2i64)_w16);
v8i16 _s0 = __msa_mulv_h(_val, _w16);
v8i16 _exts0 = __msa_clti_s_h(_s0, 0);
v4i32 _s0l = (v4i32)__msa_ilvr_h(_exts0, _s0);
v4i32 _s0h = (v4i32)__msa_ilvl_h(_exts0, _s0);
_sum00 = __msa_addv_w(_sum00, _s0l);
_sum10 = __msa_addv_w(_sum10, _s0h);
tmpptr += 2;
kptr += 4;
}
int sum[8];
__msa_st_w(_sum00, sum, 0);
__msa_st_w(_sum10, sum + 4, 0);
outptr0[0] = sum[0];
outptr1[0] = sum[1];
outptr2[0] = sum[2];
outptr3[0] = sum[3];
outptr0[1] = sum[4];
outptr1[1] = sum[5];
outptr2[1] = sum[6];
outptr3[1] = sum[7];
outptr0 += 2;
outptr1 += 2;
outptr2 += 2;
outptr3 += 2;
}
for (; i < size; i++)
{
const signed char* tmpptr = tmp.channel(i / 2 + i % 2);
const signed char* kptr = kernel.channel(p / 4);
int nn4 = (inch / 4) * maxk;
int nn1 = (inch % 4) * maxk;
v4i32 _sum0 = __msa_fill_w(0);
if (nn4 > 0)
{
v4i32 _sum1 = __msa_fill_w(0);
v4i32 _sum2 = __msa_fill_w(0);
v4i32 _sum3 = __msa_fill_w(0);
int j = 0;
for (; j < nn4; j++)
{
v16i8 _val = __msa_ld_b(tmpptr, 0);
v8i16 _val16 = (v8i16)__msa_ilvr_b(__msa_clti_s_b(_val, 0), _val);
_val16 = (v8i16)__msa_ilvr_d((v2i64)_val16, (v2i64)_val16);
v16i8 _w01 = __msa_ld_b(kptr, 0);
v16i8 _extw01 = __msa_clti_s_b(_w01, 0);
v8i16 _w0 = (v8i16)__msa_ilvr_b(_extw01, _w01);
v8i16 _w1 = (v8i16)__msa_ilvl_b(_extw01, _w01);
v8i16 _s0 = __msa_mulv_h(_val16, _w0);
v8i16 _s1 = __msa_mulv_h(_val16, _w1);
v8i16 _exts0 = __msa_clti_s_h(_s0, 0);
v8i16 _exts1 = __msa_clti_s_h(_s1, 0);
v4i32 _s0l = (v4i32)__msa_ilvr_h(_exts0, _s0);
v4i32 _s0h = (v4i32)__msa_ilvl_h(_exts0, _s0);
v4i32 _s1l = (v4i32)__msa_ilvr_h(_exts1, _s1);
v4i32 _s1h = (v4i32)__msa_ilvl_h(_exts1, _s1);
_sum0 = __msa_addv_w(_sum0, _s0l);
_sum1 = __msa_addv_w(_sum1, _s0h);
_sum2 = __msa_addv_w(_sum2, _s1l);
_sum3 = __msa_addv_w(_sum3, _s1h);
tmpptr += 4;
kptr += 16;
}
// transpose 4x4
{
v4i32 _tmp0, _tmp1, _tmp2, _tmp3;
_tmp0 = __msa_ilvr_w(_sum1, _sum0);
_tmp1 = __msa_ilvr_w(_sum3, _sum2);
_tmp2 = __msa_ilvl_w(_sum1, _sum0);
_tmp3 = __msa_ilvl_w(_sum3, _sum2);
_sum0 = (v4i32)__msa_ilvr_d((v2i64)_tmp1, (v2i64)_tmp0);
_sum1 = (v4i32)__msa_ilvl_d((v2i64)_tmp1, (v2i64)_tmp0);
_sum2 = (v4i32)__msa_ilvr_d((v2i64)_tmp3, (v2i64)_tmp2);
_sum3 = (v4i32)__msa_ilvl_d((v2i64)_tmp3, (v2i64)_tmp2);
}
_sum0 = __msa_addv_w(_sum0, _sum1);
_sum2 = __msa_addv_w(_sum2, _sum3);
_sum0 = __msa_addv_w(_sum0, _sum2);
}
int j = 0;
for (; j < nn1; j++)
{
v8i16 _val = __msa_fill_h(tmpptr[0]);
v16i8 _w = __msa_ld_b(kptr, 0);
v8i16 _w16 = (v8i16)__msa_ilvr_b(__msa_clti_s_b(_w, 0), _w);
v8i16 _s0 = __msa_mulv_h(_val, _w16);
v4i32 _s032 = (v4i32)__msa_ilvr_h(__msa_clti_s_h(_s0, 0), _s0);
_sum0 = __msa_addv_w(_sum0, _s032);
tmpptr += 1;
kptr += 4;
}
int sum[4];
__msa_st_w(_sum0, sum, 0);
outptr0[0] = sum[0];
outptr1[0] = sum[1];
outptr2[0] = sum[2];
outptr3[0] = sum[3];
outptr0 += 1;
outptr1 += 1;
outptr2 += 1;
outptr3 += 1;
}
}
#else // __mips_msa
int nn_outch = outch >> 1;
int remain_outch_start = nn_outch << 1;
#pragma omp parallel for num_threads(opt.num_threads)
for (int pp = 0; pp < nn_outch; pp++)
{
int p = pp * 2;
int* outptr0 = top_blob.channel(p);
int* outptr1 = top_blob.channel(p + 1);
int i = 0;
for (; i + 1 < size; i += 2)
{
const signed char* tmpptr = tmp.channel(i / 2);
const signed char* kptr = kernel.channel(p / 2);
int sum00 = 0;
int sum01 = 0;
int sum10 = 0;
int sum11 = 0;
#if __mips_loongson_mmi
int nn4 = (inch / 4) * maxk;
int nn1 = (inch % 4) * maxk;
if (nn4 > 0)
{
int32x2_t _sum0 = __mmi_pzerow_s();
int32x2_t _sum1 = __mmi_pzerow_s();
double temp0 = 0;
double temp1 = 0;
double temp2 = 0;
double temp3 = 0;
double temp4 = 0;
double temp5 = 0;
double temp6 = 0;
double temp7 = 0;
uint64_t flag_0x44 = 0x44;
uint64_t flag_0xee = 0xee;
int j = 0;
for (; j < nn4; j++)
{
asm volatile(
"ld $0, 32(%0) \n" // __builtin_prefetch(tmpptr + 32);
"ld $0, 32(%1) \n" // __builtin_prefetch(kptr + 32);
"ldc1 %4, 0(%0) \n" // int8x8_t _v = __mmi_pldb_s(tmpptr);
"ldc1 %6, 0(%1) \n" // int8x8_t _k = __mmi_pldb_s(kptr);
"mtc1 $0, %8 \n" // int8x8_t _zero = __mmi_pzerob_s();
"pcmpgtb %5, %8, %4 \n" // int8x8_t _extv = __mmi_pcmpgtb_s(_zero, _v);
"pcmpgtb %7, %8, %6 \n" // int8x8_t _extk = __mmi_pcmpgtb_s(_zero, _k);
"punpcklbh %8, %4, %5 \n" // int16x4_t _v0 = (int16x4_t)__mmi_punpcklbh_s(_v, _extv);
"punpckhbh %9, %4, %5 \n" // int16x4_t _v1 = (int16x4_t)__mmi_punpckhbh_s(_v, _extv);
"punpcklbh %10, %6, %7 \n" // int16x4_t _k0 = (int16x4_t)__mmi_punpcklbh_s(_k, _extk);
"punpckhbh %11, %6, %7 \n" // int16x4_t _k1 = (int16x4_t)__mmi_punpckhbh_s(_k, _extk);
"pshufh %4, %10, %24 \n" // int16x4_t _k0202 = __mmi_pshufh_s(_k0, 0x44);
"pshufh %5, %10, %25 \n" // int16x4_t _k1313 = __mmi_pshufh_s(_k0, 0xee);
"pshufh %6, %11, %24 \n" // int16x4_t _k4646 = __mmi_pshufh_s(_k1, 0x44);
"pshufh %7, %11, %25 \n" // int16x4_t _k5757 = __mmi_pshufh_s(_k1, 0xee);
"pmaddhw %4, %8, %4 \n" // int32x2_t _s0x = __mmi_pmaddhw(_v0, _k0202);
"pmaddhw %5, %8, %5 \n" // int32x2_t _s1x = __mmi_pmaddhw(_v0, _k1313);
"pmaddhw %6, %9, %6 \n" // int32x2_t _s0y = __mmi_pmaddhw(_v1, _k4646);
"pmaddhw %7, %9, %7 \n" // int32x2_t _s1y = __mmi_pmaddhw(_v1, _k5757);
"paddw %2, %2, %4 \n" // _sum0 = __mmi_paddw_s(_sum0, _s0x);
"paddw %3, %3, %5 \n" // _sum1 = __mmi_paddw_s(_sum1, _s1x);
"paddw %2, %2, %6 \n" // _sum0 = __mmi_paddw_s(_sum0, _s0y);
"paddw %3, %3, %7 \n" // _sum1 = __mmi_paddw_s(_sum1, _s1y);
: "=r"(tmpptr), // %0
"=r"(kptr), // %1
"=f"(_sum0), // %2
"=f"(_sum1), // %3
"=f"(temp0), // %4
"=f"(temp1), // %5
"=f"(temp2), // %6
"=f"(temp3), // %7
"=f"(temp4), // %8
"=f"(temp5), // %9
"=f"(temp6), // %10
"=f"(temp7) // %11
: "0"(tmpptr),
"1"(kptr),
"2"(_sum0),
"3"(_sum1),
"4"(temp0),
"5"(temp1),
"6"(temp2),
"7"(temp3),
"8"(temp4),
"9"(temp5),
"10"(temp6),
"11"(temp7),
"f"(flag_0x44), // %24
"f"(flag_0xee) // %25
: "memory");
tmpptr += 8;
kptr += 8;
}
int sum[4];
__mmi_pstw_s(sum, _sum0);
__mmi_pstw_s(sum + 2, _sum1);
sum00 = sum[0];
sum01 = sum[1];
sum10 = sum[2];
sum11 = sum[3];
}
#else // __mips_loongson_mmi
int nn1 = inch * maxk;
#endif // __mips_loongson_mmi
int j = 0;
for (; j < nn1; j++)
{
signed char val0 = tmpptr[0];
signed char val1 = tmpptr[1];
signed char w0 = kptr[0];
signed char w1 = kptr[1];
sum00 += val0 * w0;
sum01 += val1 * w0;
sum10 += val0 * w1;
sum11 += val1 * w1;
tmpptr += 2;
kptr += 2;
}
outptr0[0] = sum00;
outptr0[1] = sum01;
outptr1[0] = sum10;
outptr1[1] = sum11;
outptr0 += 2;
outptr1 += 2;
}
for (; i < size; i++)
{
const signed char* tmpptr = tmp.channel(i / 2 + i % 2);
const signed char* kptr = kernel.channel(p / 2);
int sum00 = 0;
int sum10 = 0;
#if __mips_loongson_mmi
int nn4 = (inch / 4) * maxk;
int nn1 = (inch % 4) * maxk;
if (nn4 > 0)
{
int32x2_t _sum01 = __mmi_pzerow_s();
double temp0 = 0;
double temp1 = 0;
double temp2 = 0;
double temp3 = 0;
double temp4 = 0;
double temp5 = 0;
uint64_t flag_0x44 = 0x44;
uint64_t flag_0xee = 0xee;
int j = 0;
for (; j < nn4; j++)
{
asm volatile(
"ld $0, 16(%0) \n" // __builtin_prefetch(tmpptr + 16);
"ld $0, 32(%1) \n" // __builtin_prefetch(kptr + 32);
"ldc1 %3, 0(%0) \n" // int8x8_t _v = __mmi_pldb_s(tmpptr);
"ldc1 %5, 0(%1) \n" // int8x8_t _k = __mmi_pldb_s(kptr);
"mtc1 $0, %7 \n" // int8x8_t _zero = __mmi_pzerob_s();
"pcmpgtb %4, %7, %3 \n" // int8x8_t _extv = __mmi_pcmpgtb_s(_zero, _v);
"pcmpgtb %6, %7, %5 \n" // int8x8_t _extk = __mmi_pcmpgtb_s(_zero, _k);
"punpcklbh %4, %3, %4 \n" // int16x4_t _v0 = (int16x4_t)__mmi_punpcklbh_s(_v, _extv);
"punpcklbh %7, %5, %6 \n" // int16x4_t _k0 = (int16x4_t)__mmi_punpcklbh_s(_k, _extk);
"punpckhbh %8, %5, %6 \n" // int16x4_t _k1 = (int16x4_t)__mmi_punpckhbh_s(_k, _extk);
"pshufh %3, %4, %18 \n" // int16x4_t _v0101 = __mmi_pshufh_s(_v0, 0x44);
"pshufh %4, %4, %19 \n" // int16x4_t _v2323 = __mmi_pshufh_s(_v0, 0xee);
"pmaddhw %3, %3, %7 \n" // int32x2_t _s01x = __mmi_pmaddhw(_v0101, _k0);
"pmaddhw %4, %4, %8 \n" // int32x2_t _s01y = __mmi_pmaddhw(_v2323, _k1);
"paddw %2, %2, %3 \n" // _sum01 = __mmi_paddw_s(_sum01, _s01x);
"paddw %2, %2, %4 \n" // _sum01 = __mmi_paddw_s(_sum01, _s01y);
: "=r"(tmpptr), // %0
"=r"(kptr), // %1
"=f"(_sum01), // %2
"=f"(temp0), // %3
"=f"(temp1), // %4
"=f"(temp2), // %5
"=f"(temp3), // %6
"=f"(temp4), // %7
"=f"(temp5) // %8
: "0"(tmpptr),
"1"(kptr),
"2"(_sum01),
"3"(temp0),
"4"(temp1),
"5"(temp2),
"6"(temp3),
"7"(temp4),
"8"(temp5),
"f"(flag_0x44), // %18
"f"(flag_0xee) // %19
: "memory");
tmpptr += 4;
kptr += 8;
}
int sum[2];
__mmi_pstw_s(sum, _sum01);
sum00 = sum[0];
sum10 = sum[1];
}
#else // __mips_loongson_mmi
int nn1 = inch * maxk;
#endif // __mips_loongson_mmi
int j = 0;
for (; j < nn1; j++)
{
signed char val0 = tmpptr[0];
signed char w0 = kptr[0];
signed char w1 = kptr[1];
sum00 += val0 * w0;
sum10 += val0 * w1;
tmpptr += 1;
kptr += 2;
}
outptr0[0] = sum00;
outptr1[0] = sum10;
outptr0 += 1;
outptr1 += 1;
}
}
#endif // __mips_msa
#pragma omp parallel for num_threads(opt.num_threads)
for (int p = remain_outch_start; p < outch; p++)
{
int* outptr0 = top_blob.channel(p);
int i = 0;
for (; i + 1 < size; i += 2)
{
const signed char* tmpptr = tmp.channel(i / 2);
#if __mips_msa
const signed char* kptr = kernel.channel(p / 4 + p % 4);
#else
const signed char* kptr = kernel.channel(p / 2 + p % 2);
#endif
int sum0 = 0;
int sum1 = 0;
#if __mips_msa
int nn4 = (inch / 4) * maxk;
int nn1 = (inch % 4) * maxk;
if (nn4 > 0)
{
v4i32 _sum0 = __msa_fill_w(0);
v4i32 _sum1 = __msa_fill_w(0);
int j = 0;
for (; j < nn4; j++)
{
v16i8 _val = __msa_ld_b(tmpptr, 0);
v8i16 _val16 = (v8i16)__msa_ilvr_b(__msa_clti_s_b(_val, 0), _val);
v16i8 _w = __msa_ld_b(kptr, 0);
v8i16 _w16 = (v8i16)__msa_ilvr_b(__msa_clti_s_b(_w, 0), _w);
_w16 = (v8i16)__msa_ilvr_d((v2i64)_w16, (v2i64)_w16);
v8i16 _s0 = __msa_mulv_h(_val16, _w16);
v8i16 _exts0 = __msa_clti_s_h(_s0, 0);
v4i32 _s0l = (v4i32)__msa_ilvr_h(_exts0, _s0);
v4i32 _s0h = (v4i32)__msa_ilvl_h(_exts0, _s0);
_sum0 = __msa_addv_w(_sum0, _s0l);
_sum1 = __msa_addv_w(_sum1, _s0h);
tmpptr += 8;
kptr += 4;
}
sum0 = _sum0[0] + _sum0[1] + _sum0[2] + _sum0[3];
sum1 = _sum1[0] + _sum1[1] + _sum1[2] + _sum1[3];
}
#elif __mips_loongson_mmi
int nn4 = (inch / 4) * maxk;
int nn1 = (inch % 4) * maxk;
if (nn4 > 0)
{
int32x2_t _sum01 = __mmi_pzerow_s();
double temp0 = 0;
double temp1 = 0;
double temp2 = 0;
double temp3 = 0;
double temp4 = 0;
double temp5 = 0;
uint64_t flag_0x44 = 0x44;
uint64_t flag_0xee = 0xee;
int j = 0;
for (; j < nn4; j++)
{
asm volatile(
"ld $0, 32(%0) \n" // __builtin_prefetch(tmpptr + 32);
"ld $0, 16(%1) \n" // __builtin_prefetch(kptr + 16);
"ldc1 %3, 0(%0) \n" // int8x8_t _v = __mmi_pldb_s(tmpptr);
"ldc1 %5, 0(%1) \n" // int8x8_t _k = __mmi_pldb_s(kptr);
"mtc1 $0, %6 \n" // int8x8_t _zero = __mmi_pzerob_s();
"pcmpgtb %4, %6, %3 \n" // int8x8_t _extv = __mmi_pcmpgtb_s(_zero, _v);
"pcmpgtb %6, %6, %5 \n" // int8x8_t _extk = __mmi_pcmpgtb_s(_zero, _k);
"punpcklbh %7, %3, %4 \n" // int16x4_t _v0 = (int16x4_t)__mmi_punpcklbh_s(_v, _extv);
"punpckhbh %8, %3, %4 \n" // int16x4_t _v1 = (int16x4_t)__mmi_punpckhbh_s(_v, _extv);
"punpcklbh %5, %5, %6 \n" // int16x4_t _k0 = (int16x4_t)__mmi_punpcklbh_s(_k, _extk);
"pshufh %3, %5, %18 \n" // int16x4_t _k0202 = __mmi_pshufh_s(_k0, 0x44);
"pshufh %4, %5, %19 \n" // int16x4_t _k1313 = __mmi_pshufh_s(_k0, 0xee);
"pmaddhw %3, %7, %3 \n" // int32x2_t _s01x = __mmi_pmaddhw(_v0, _k0101);
"pmaddhw %4, %8, %4 \n" // int32x2_t _s01y = __mmi_pmaddhw(_v1, _k2323);
"paddw %2, %2, %3 \n" // _sum01 = __mmi_paddw_s(_sum01, _s01x);
"paddw %2, %2, %4 \n" // _sum01 = __mmi_paddw_s(_sum01, _s01y);
: "=r"(tmpptr), // %0
"=r"(kptr), // %1
"=f"(_sum01), // %2
"=f"(temp0), // %3
"=f"(temp1), // %4
"=f"(temp2), // %5
"=f"(temp3), // %6
"=f"(temp4), // %7
"=f"(temp5) // %8
: "0"(tmpptr),
"1"(kptr),
"2"(_sum01),
"3"(temp0),
"4"(temp1),
"5"(temp2),
"6"(temp3),
"7"(temp4),
"8"(temp5),
"f"(flag_0x44), // %18
"f"(flag_0xee) // %19
: "memory");
tmpptr += 8;
kptr += 4;
}
int sum[2];
__mmi_pstw_s(sum, _sum01);
sum0 = sum[0];
sum1 = sum[1];
}
#else // __mips_loongson_mmi
int nn1 = inch * maxk;
#endif // __mips_msa || __mips_loongson_mmi
int j = 0;
for (; j < nn1; j++)
{
signed char val0 = tmpptr[0];
signed char val1 = tmpptr[1];
signed char w = kptr[0];
sum0 += val0 * w;
sum1 += val1 * w;
tmpptr += 2;
kptr += 1;
}
outptr0[0] = sum0;
outptr0[1] = sum1;
outptr0 += 2;
}
for (; i < size; i++)
{
const signed char* tmpptr = tmp.channel(i / 2 + i % 2);
#if __mips_msa
const signed char* kptr = kernel.channel(p / 4 + p % 4);
#else
const signed char* kptr = kernel.channel(p / 2 + p % 2);
#endif
int sum = 0;
#if __mips_msa
int nn4 = (inch / 4) * maxk;
int nn1 = (inch % 4) * maxk;
if (nn4 > 0)
{
v4i32 _sum = __msa_fill_w(0);
int j = 0;
for (; j < nn4; j++)
{
v16i8 _val = __msa_ld_b(tmpptr, 0);
v8i16 _val16 = (v8i16)__msa_ilvr_b(__msa_clti_s_b(_val, 0), _val);
v16i8 _w = __msa_ld_b(kptr, 0);
v8i16 _w16 = (v8i16)__msa_ilvr_b(__msa_clti_s_b(_w, 0), _w);
v8i16 _s0 = __msa_mulv_h(_val16, _w16);
v4i32 _s032 = (v4i32)__msa_ilvr_h(__msa_clti_s_h(_s0, 0), _s0);
_sum = __msa_addv_w(_sum, _s032);
tmpptr += 4;
kptr += 4;
}
sum = _sum[0] + _sum[1] + _sum[2] + _sum[3];
}
#elif __mips_loongson_mmi
int nn4 = (inch / 4) * maxk;
int nn1 = (inch % 4) * maxk;
if (nn4 > 0)
{
int32x2_t _sum0 = __mmi_pzerow_s();
double temp0 = 0;
double temp1 = 0;
double temp2 = 0;
double temp3 = 0;
int j = 0;
for (; j < nn4; j++)
{
asm volatile(
"ld $0, 16(%0) \n" // __builtin_prefetch(tmpptr + 16);
"ld $0, 16(%1) \n" // __builtin_prefetch(kptr + 16);
"ldc1 %3, 0(%0) \n" // int8x8_t _v = __mmi_pldb_s(tmpptr);
"ldc1 %5, 0(%1) \n" // int8x8_t _k = __mmi_pldb_s(kptr);
"mtc1 $0, %6 \n" // int8x8_t _zero = __mmi_pzerob_s();
"pcmpgtb %4, %6, %3 \n" // int8x8_t _extv = __mmi_pcmpgtb_s(_zero, _v);
"pcmpgtb %6, %6, %5 \n" // int8x8_t _extk = __mmi_pcmpgtb_s(_zero, _k);
"punpcklbh %3, %3, %4 \n" // int16x4_t _v0 = (int16x4_t)__mmi_punpcklbh_s(_v, _extv);
"punpcklbh %5, %5, %6 \n" // int16x4_t _k0 = (int16x4_t)__mmi_punpcklbh_s(_k, _extk);
"pmaddhw %3, %3, %5 \n" // int32x2_t _s0x = __mmi_pmaddhw(_v0, _k0);
"paddw %2, %2, %3 \n" // _sum0 = __mmi_paddw_s(_sum0, _s0x);
: "=r"(tmpptr), // %0
"=r"(kptr), // %1
"=f"(_sum0), // %2
"=f"(temp0), // %3
"=f"(temp1), // %4
"=f"(temp2), // %5
"=f"(temp3) // %6
: "0"(tmpptr),
"1"(kptr),
"2"(_sum0),
"3"(temp0),
"4"(temp1),
"5"(temp2),
"6"(temp3)
: "memory");
tmpptr += 4;
kptr += 4;
}
int tmp[2];
__mmi_pstw_s(tmp, _sum0);
sum = tmp[0] + tmp[1];
}
#else // __mips_loongson_mmi
int nn1 = inch * maxk;
#endif // __mips_msa
int j = 0;
for (; j < nn1; j++)
{
signed char val = tmpptr[0];
signed char w = kptr[0];
sum += val * w;
tmpptr += 1;
kptr += 1;
}
outptr0[0] = sum;
outptr0 += 1;
}
}
}
static void convolution_im2col_sgemm_transform_kernel_int8_msa(const Mat& _kernel, Mat& kernel_tm, int inch, int outch, int kernel_w, int kernel_h)
{
#if NCNN_RUNTIME_CPU && NCNN_MMI && !__mips_msa && !__mips_loongson_mmi
if (ncnn::cpu_support_loongson_mmi())
{
convolution_im2col_sgemm_transform_kernel_int8_loongson_mmi(_kernel, kernel_tm, inch, outch, kernel_w, kernel_h);
return;
}
#endif
const int maxk = kernel_w * kernel_h;
// interleave
// src = maxk-inch-outch
// dst = 4a-4b-maxk-inch/4a-outch/4b
Mat kernel = _kernel.reshape(maxk, inch, outch);
#if __mips_msa
if (outch >= 4)
{
if (inch >= 4)
kernel_tm.create(16 * maxk, inch / 4 + inch % 4, outch / 4 + outch % 4, (size_t)1u);
else
kernel_tm.create(4 * maxk, inch, outch / 4 + outch % 4, (size_t)1u);
}
#else
if (outch >= 2)
{
#if __mips_loongson_mmi
if (inch >= 4)
kernel_tm.create(8 * maxk, inch / 4 + inch % 4, outch / 2 + outch % 2, (size_t)1u);
else
#endif // __mips_loongson_mmi
{
kernel_tm.create(2 * maxk, inch, outch / 2 + outch % 2, (size_t)1u);
}
}
#endif // __mips_msa
else
{
#if __mips_msa || __mips_loongson_mmi
if (inch >= 4)
kernel_tm.create(4 * maxk, inch / 4 + inch % 4, outch, (size_t)1u);
else
#endif // __mips_msa || __mips_loongson_mmi
{
kernel_tm.create(1 * maxk, inch, outch, (size_t)1u);
}
}
int q = 0;
#if __mips_msa
for (; q + 3 < outch; q += 4)
{
signed char* g00 = kernel_tm.channel(q / 4);
int p = 0;
for (; p + 3 < inch; p += 4)
{
for (int k = 0; k < maxk; k++)
{
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
const signed char* k00 = kernel.channel(q + i).row<const signed char>(p + j);
g00[0] = k00[k];
g00++;
}
}
}
}
for (; p < inch; p++)
{
for (int k = 0; k < maxk; k++)
{
for (int i = 0; i < 4; i++)
{
const signed char* k00 = kernel.channel(q + i).row<const signed char>(p);
g00[0] = k00[k];
g00++;
}
}
}
}
#else // __mips_msa
for (; q + 1 < outch; q += 2)
{
signed char* g00 = kernel_tm.channel(q / 2);
int p = 0;
#if __mips_loongson_mmi
for (; p + 3 < inch; p += 4)
{
for (int k = 0; k < maxk; k++)
{
const signed char* k00 = kernel.channel(q).row<const signed char>(p);
const signed char* k01 = kernel.channel(q).row<const signed char>(p + 1);
const signed char* k02 = kernel.channel(q).row<const signed char>(p + 2);
const signed char* k03 = kernel.channel(q).row<const signed char>(p + 3);
const signed char* k10 = kernel.channel(q + 1).row<const signed char>(p);
const signed char* k11 = kernel.channel(q + 1).row<const signed char>(p + 1);
const signed char* k12 = kernel.channel(q + 1).row<const signed char>(p + 2);
const signed char* k13 = kernel.channel(q + 1).row<const signed char>(p + 3);
g00[0] = k00[k];
g00[1] = k01[k];
g00[2] = k10[k];
g00[3] = k11[k];
g00[4] = k02[k];
g00[5] = k03[k];
g00[6] = k12[k];
g00[7] = k13[k];
g00 += 8;
}
}
#endif // __mips_loongson_mmi
for (; p < inch; p++)
{
for (int k = 0; k < maxk; k++)
{
for (int i = 0; i < 2; i++)
{
const signed char* k00 = kernel.channel(q + i).row<const signed char>(p);
g00[0] = k00[k];
g00++;
}
}
}
}
#endif // __mips_msa
for (; q < outch; q++)
{
#if __mips_msa
signed char* g00 = kernel_tm.channel(q / 4 + q % 4);
#else
signed char* g00 = kernel_tm.channel(q / 2 + q % 2);
#endif
int p = 0;
#if __mips_msa || __mips_loongson_mmi
for (; p + 3 < inch; p += 4)
{
for (int k = 0; k < maxk; k++)
{
for (int j = 0; j < 4; j++)
{
const signed char* k00 = kernel.channel(q).row<const signed char>(p + j);
g00[0] = k00[k];
g00++;
}
}
}
#endif // __mips_msa || __mips_loongson_mmi
for (; p < inch; p++)
{
for (int k = 0; k < maxk; k++)
{
const signed char* k00 = kernel.channel(q).row<const signed char>(p);
g00[0] = k00[k];
g00++;
}
}
}
}
static void convolution_im2col_sgemm_int8_msa(const Mat& bottom_blob, Mat& top_blob, const Mat& kernel, int kernel_w, int kernel_h, int dilation_w, int dilation_h, int stride_w, int stride_h, const Option& opt)
{
int w = bottom_blob.w;
int inch = bottom_blob.c;
int outw = top_blob.w;
int outh = top_blob.h;
const int size = outw * outh;
const int maxk = kernel_w * kernel_h;
// im2col
Mat bottom_im2col(size, maxk, inch, 1u, 1, opt.workspace_allocator);
{
const int gap = w * stride_h - outw * stride_w;
#pragma omp parallel for num_threads(opt.num_threads)
for (int p = 0; p < inch; p++)
{
const Mat img = bottom_blob.channel(p);
signed char* ptr = bottom_im2col.channel(p);
for (int u = 0; u < kernel_h; u++)
{
for (int v = 0; v < kernel_w; v++)
{
const signed char* sptr = img.row<const signed char>(dilation_h * u) + dilation_w * v;
for (int i = 0; i < outh; i++)
{
int j = 0;
for (; j + 3 < outw; j += 4)
{
ptr[0] = sptr[0];
ptr[1] = sptr[stride_w];
ptr[2] = sptr[stride_w * 2];
ptr[3] = sptr[stride_w * 3];
sptr += stride_w * 4;
ptr += 4;
}
for (; j + 1 < outw; j += 2)
{
ptr[0] = sptr[0];
ptr[1] = sptr[stride_w];
sptr += stride_w * 2;
ptr += 2;
}
for (; j < outw; j++)
{
ptr[0] = sptr[0];
sptr += stride_w;
ptr += 1;
}
sptr += gap;
}
}
}
}
}
im2col_sgemm_int8_msa(bottom_im2col, top_blob, kernel, opt);
}
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