Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 1 | // Copyright 2020 Google LLC |
| 2 | // |
| 3 | // This source code is licensed under the BSD-style license found in the |
| 4 | // LICENSE file in the root directory of this source tree. |
| 5 | |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 6 | $assert REQUANTIZATION in ["GEMMLOWP", "FP32"] |
Marat Dukhan | e06c813 | 2021-06-03 08:59:11 -0700 | [diff] [blame] | 7 | $assert not CHANNELWISE or REQUANTIZATION == "FP32" |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 8 | $assert MR <= 4 |
| 9 | #include <assert.h> |
| 10 | |
| 11 | #include <immintrin.h> |
| 12 | |
| 13 | #include <xnnpack/igemm.h> |
Marat Dukhan | f124e88 | 2020-08-09 19:48:10 -0700 | [diff] [blame] | 14 | #include <xnnpack/intrinsics-polyfill.h> |
Frank Barchard | 6d8ca7d | 2021-03-01 11:05:08 -0800 | [diff] [blame] | 15 | #include <xnnpack/math.h> |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 16 | |
| 17 | |
Marat Dukhan | e06c813 | 2021-06-03 08:59:11 -0700 | [diff] [blame] | 18 | $DATATYPE = "qc8" if CHANNELWISE else "qs8" |
| 19 | $PARAMS_STRUCT = "avx2" if CHANNELWISE else REQUANTIZATION.lower() + "_avx2" |
Marat Dukhan | 8228689 | 2021-06-04 17:27:27 -0700 | [diff] [blame] | 20 | $CONV_PARAMS = "xnn_qs8_minmax_params" if CHANNELWISE else "xnn_qs8_conv_minmax_params" |
Marat Dukhan | e06c813 | 2021-06-03 08:59:11 -0700 | [diff] [blame] | 21 | void xnn_${DATATYPE}_igemm_minmax_${REQUANTIZATION.lower()}_ukernel_${MR}x8c8__avx2( |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 22 | size_t mr, |
| 23 | size_t nc, |
| 24 | size_t kc, |
| 25 | size_t ks, |
| 26 | const int8_t** restrict a, |
| 27 | const void* restrict w, |
| 28 | int8_t* restrict c, |
| 29 | size_t cm_stride, |
| 30 | size_t cn_stride, |
| 31 | size_t a_offset, |
| 32 | const int8_t* zero, |
Marat Dukhan | 8228689 | 2021-06-04 17:27:27 -0700 | [diff] [blame] | 33 | const union ${CONV_PARAMS} params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN XNN_DISABLE_MSAN |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 34 | { |
| 35 | assert(mr != 0); |
| 36 | assert(mr <= ${MR}); |
| 37 | assert(nc != 0); |
| 38 | assert(kc != 0); |
| 39 | assert(ks != 0); |
| 40 | assert(ks % (${MR} * sizeof(void*)) == 0); |
| 41 | assert(a_offset % sizeof(int8_t) == 0); |
| 42 | assert(a != NULL); |
| 43 | assert(w != NULL); |
| 44 | assert(c != NULL); |
| 45 | |
Frank Barchard | 6d8ca7d | 2021-03-01 11:05:08 -0800 | [diff] [blame] | 46 | kc = round_up_po2(kc, 8); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 47 | int8_t* c0 = c; |
| 48 | $for M in range(1, MR): |
| 49 | int8_t* c${M} = (int8_t*) ((uintptr_t) c${M-1} + cm_stride); |
| 50 | $if M % 2 == 0: |
| 51 | if XNN_UNPREDICTABLE(mr <= ${M}) { |
| 52 | c${M} = c${M-1}; |
| 53 | } |
| 54 | $elif M + 1 == MR: |
| 55 | if XNN_UNPREDICTABLE(mr != ${M+1}) { |
| 56 | c${M} = c${M-1}; |
| 57 | } |
| 58 | $else: |
| 59 | if XNN_UNPREDICTABLE(mr < ${M+1}) { |
| 60 | c${M} = c${M-1}; |
| 61 | } |
| 62 | |
| 63 | do { |
| 64 | const __m128i vbias0x0 = _mm_loadu_si32(w); |
| 65 | const __m128i vbias0x1 = _mm_loadu_si32((const void*) ((uintptr_t) w + sizeof(int32_t))); |
| 66 | __m256i vacc0x01 = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x0), vbias0x1, 1); |
| 67 | $for N in range(2, 8, 2): |
| 68 | const __m128i vbias0x${N} = _mm_loadu_si32((const void*) ((uintptr_t) w + ${N} * sizeof(int32_t))); |
| 69 | const __m128i vbias0x${N+1} = _mm_loadu_si32((const void*) ((uintptr_t) w + ${N+1} * sizeof(int32_t))); |
| 70 | __m256i vacc0x${N}${N+1} = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x${N}), vbias0x${N+1}, 1); |
| 71 | $for M in range(1, MR): |
| 72 | $for N in range(0, 8, 2): |
| 73 | __m256i vacc${M}x${N}${N+1} = vacc0x${N}${N+1}; |
| 74 | w = (const void*) ((uintptr_t) w + 8 * sizeof(int32_t)); |
| 75 | |
| 76 | size_t p = ks; |
| 77 | do { |
| 78 | $for M in range(MR): |
| 79 | const int8_t* restrict a${M} = a[${M}]; |
| 80 | if XNN_UNPREDICTABLE(a${M} != zero) { |
| 81 | a${M} = (const int8_t*) ((uintptr_t) a${M} + a_offset); |
| 82 | } |
| 83 | a += ${MR}; |
| 84 | |
| 85 | size_t k = 0; |
| 86 | while (k < kc) { |
| 87 | $for M in range(MR): |
| 88 | const __m128i va${M} = _mm_broadcastq_epi64(_mm_loadl_epi64((const __m128i*) a${M})); |
| 89 | const __m256i vxa${M} = _mm256_cvtepi8_epi16(va${M}); |
| 90 | a${M} += 8; |
| 91 | |
| 92 | $for N in range(0, 8, 2): |
| 93 | $if N == 0: |
| 94 | const __m128i vb${N}${N+1} = _mm_load_si128((const __m128i*) w); |
| 95 | $else: |
| 96 | const __m128i vb${N}${N+1} = _mm_load_si128((const __m128i*) ((uintptr_t) w + ${N * 8} * sizeof(int8_t))); |
| 97 | const __m256i vxb${N}${N+1} = _mm256_cvtepi8_epi16(vb${N}${N+1}); |
| 98 | |
| 99 | $for M in range(MR): |
| 100 | vacc${M}x${N}${N+1} = _mm256_add_epi32(vacc${M}x${N}${N+1}, _mm256_madd_epi16(vxa${M}, vxb${N}${N+1})); |
| 101 | |
| 102 | w = (const void*) ((uintptr_t) w + 64 * sizeof(int8_t)); |
| 103 | k += 8 * sizeof(int8_t); |
| 104 | } |
| 105 | p -= ${MR} * sizeof(void*); |
| 106 | } while (p != 0); |
| 107 | |
| 108 | $for M in range(MR): |
| 109 | const __m256i vacc${M}x0213 = _mm256_hadd_epi32(vacc${M}x01, vacc${M}x23); |
| 110 | const __m256i vacc${M}x4657 = _mm256_hadd_epi32(vacc${M}x45, vacc${M}x67); |
| 111 | |
| 112 | $for M in range(MR): |
| 113 | const __m256i vacc${M}x02461357 = _mm256_hadd_epi32(vacc${M}x0213, vacc${M}x4657); |
| 114 | |
Marat Dukhan | 23848db | 2020-08-05 09:10:16 -0700 | [diff] [blame] | 115 | const __m256i vpermute_mask = _mm256_set_epi32(7, 3, 6, 2, 5, 1, 4, 0); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 116 | $for M in range(MR): |
Marat Dukhan | 23848db | 2020-08-05 09:10:16 -0700 | [diff] [blame] | 117 | __m256i vacc${M}x01234567 = _mm256_permutevar8x32_epi32(vacc${M}x02461357, vpermute_mask); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 118 | |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 119 | $if REQUANTIZATION == "GEMMLOWP": |
| 120 | const __m256i vmultiplier = _mm256_load_si256((const __m256i*) params->gemmlowp_avx2.multiplier); |
| 121 | const __m256i vrounding = _mm256_load_si256((const __m256i*) params->gemmlowp_avx2.rounding); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 122 | |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 123 | $for M in range(MR): |
| 124 | const __m256i vacc${M}x11335577 = _mm256_shuffle_epi32(vacc${M}x01234567, _MM_SHUFFLE(3, 3, 1, 1)); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 125 | |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 126 | $for M in range(MR): |
| 127 | const __m256i vprod${M}x0246 = _mm256_add_epi64(_mm256_mul_epi32(vacc${M}x01234567, vmultiplier), vrounding); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 128 | |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 129 | $for M in range(MR): |
| 130 | const __m256i vprod${M}x1357 = _mm256_add_epi64(_mm256_mul_epi32(vacc${M}x11335577, vmultiplier), vrounding); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 131 | |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 132 | $for M in range(MR): |
| 133 | const __m256i vq31prod${M}x0246 = _mm256_srli_epi64(vprod${M}x0246, 31); |
| 134 | const __m256i vq31prod${M}x1357 = _mm256_add_epi64(vprod${M}x1357, vprod${M}x1357); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 135 | |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 136 | $for M in range(MR): |
| 137 | const __m256i vq31prod${M}x01234567 = _mm256_blend_epi16(vq31prod${M}x0246, vq31prod${M}x1357, 0xCC); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 138 | |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 139 | const __m256i vremainder_mask = _mm256_load_si256((const __m256i*) params->gemmlowp_avx2.remainder_mask); |
| 140 | $for M in range(MR): |
| 141 | const __m256i vrem${M}x01234567 = |
| 142 | _mm256_add_epi32(_mm256_and_si256(vq31prod${M}x01234567, vremainder_mask), _mm256_cmpgt_epi32(_mm256_setzero_si256(), vq31prod${M}x01234567)); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 143 | |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 144 | const __m256i vremainder_threshold = _mm256_load_si256((const __m256i*) params->gemmlowp_avx2.remainder_threshold); |
| 145 | $if M > 1: |
| 146 | const __m128i vshift = _mm_loadl_epi64((const __m128i*) params->gemmlowp_avx2.shift); |
| 147 | $else: |
| 148 | const __m128i vshift = _mm_load_si128((const __m128i*) params->gemmlowp_avx2.shift); |
| 149 | $for M in range(MR): |
| 150 | vacc${M}x01234567 = |
| 151 | _mm256_sub_epi32(_mm256_sra_epi32(vq31prod${M}x01234567, vshift), _mm256_cmpgt_epi32(vrem${M}x01234567, vremainder_threshold)); |
Marat Dukhan | 748fd12 | 2021-05-22 20:46:56 -0700 | [diff] [blame] | 152 | $else: |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 153 | $for M in range(MR): |
| 154 | __m256 vscaled${M}x01234567 = _mm256_cvtepi32_ps(vacc${M}x01234567); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 155 | |
Marat Dukhan | e06c813 | 2021-06-03 08:59:11 -0700 | [diff] [blame] | 156 | $if CHANNELWISE: |
| 157 | const __m256 vscale01234567 = _mm256_load_ps(w); |
| 158 | w = (const void*) ((uintptr_t) w + 8 * sizeof(float)); |
| 159 | $for M in range(MR): |
| 160 | vscaled${M}x01234567 = _mm256_mul_ps(vscaled${M}x01234567, vscale01234567); |
| 161 | $else: |
| 162 | const __m256 vscale = _mm256_load_ps(params->fp32_avx2.scale); |
| 163 | $for M in range(MR): |
| 164 | vscaled${M}x01234567 = _mm256_mul_ps(vscaled${M}x01234567, vscale); |
Marat Dukhan | 9b474cf | 2021-05-25 16:37:48 -0700 | [diff] [blame] | 165 | |
| 166 | $for M in range(MR): |
| 167 | vacc${M}x01234567 = _mm256_cvtps_epi32(vscaled${M}x01234567); |
| 168 | |
Marat Dukhan | e06c813 | 2021-06-03 08:59:11 -0700 | [diff] [blame] | 169 | const __m256i voutput_zero_point = _mm256_load_si256((const __m256i*) params->${PARAMS_STRUCT}.output_zero_point); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 170 | $for M in range(0, MR, 2): |
| 171 | __m256i vacc${M}${min(M+1, MR-1)}x01234567 = _mm256_adds_epi16(_mm256_packs_epi32(vacc${M}x01234567, vacc${min(M+1, MR-1)}x01234567), voutput_zero_point); |
| 172 | |
| 173 | $for M in range(0, MR, 2): |
| 174 | vacc${M}${min(M+1, MR-1)}x01234567 = _mm256_permute4x64_epi64(vacc${M}${min(M+1, MR-1)}x01234567, _MM_SHUFFLE(3, 1, 2, 0)); |
| 175 | |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 176 | $if MR > 2: |
| 177 | __m256i vout = _mm256_packs_epi16(vacc0${min(1, MR-1)}x01234567, vacc${min(2, MR-1)}${min(3, MR-1)}x01234567); |
| 178 | $else: |
| 179 | __m256i vout = _mm256_packs_epi16(vacc0${min(1, MR-1)}x01234567, vacc0${min(1, MR-1)}x01234567); |
Marat Dukhan | 748fd12 | 2021-05-22 20:46:56 -0700 | [diff] [blame] | 180 | |
Marat Dukhan | e06c813 | 2021-06-03 08:59:11 -0700 | [diff] [blame] | 181 | vout = _mm256_max_epi8(vout, _mm256_load_si256((const __m256i*) params->${PARAMS_STRUCT}.output_min)); |
| 182 | vout = _mm256_min_epi8(vout, _mm256_load_si256((const __m256i*) params->${PARAMS_STRUCT}.output_max)); |
Marat Dukhan | 748fd12 | 2021-05-22 20:46:56 -0700 | [diff] [blame] | 183 | |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 184 | __m128i vout_lo = _mm256_castsi256_si128(vout); |
| 185 | __m128i vout_hi = _mm256_extracti128_si256(vout, 1); |
| 186 | |
| 187 | if (nc >= 8) { |
| 188 | $if MR > 3: |
| 189 | _mm_storeh_pi((__m64*) c3, _mm_castsi128_ps(vout_hi)); |
| 190 | $if MR > 2: |
| 191 | _mm_storeh_pi((__m64*) c2, _mm_castsi128_ps(vout_lo)); |
| 192 | $if MR > 1: |
| 193 | _mm_storel_epi64((__m128i*) c1, vout_hi); |
| 194 | _mm_storel_epi64((__m128i*) c0, vout_lo); |
| 195 | |
| 196 | $for M in reversed(range(MR)): |
| 197 | c${M} = (int8_t*) ((uintptr_t) c${M} + cn_stride); |
| 198 | |
| 199 | a = (const int8_t**restrict) ((uintptr_t) a - ks); |
| 200 | |
| 201 | nc -= 8; |
| 202 | } else { |
| 203 | if (nc & 4) { |
| 204 | $if MR > 3: |
| 205 | *((uint32_t*) c3) = (uint32_t) _mm_extract_epi32(vout_hi, 2); |
| 206 | $if MR > 2: |
| 207 | *((uint32_t*) c2) = (uint32_t) _mm_extract_epi32(vout_lo, 2); |
| 208 | $if MR > 1: |
| 209 | _mm_storeu_si32(c1, vout_hi); |
| 210 | _mm_storeu_si32(c0, vout_lo); |
| 211 | |
| 212 | $for M in reversed(range(MR)): |
| 213 | c${M} += 4; |
| 214 | |
| 215 | vout_lo = _mm_srli_epi64(vout_lo, 32); |
| 216 | vout_hi = _mm_srli_epi64(vout_hi, 32); |
| 217 | } |
| 218 | if (nc & 2) { |
| 219 | $if MR > 3: |
| 220 | *((uint16_t*) c3) = (uint16_t) _mm_extract_epi16(vout_hi, 4); |
| 221 | $if MR > 2: |
| 222 | *((uint16_t*) c2) = (uint16_t) _mm_extract_epi16(vout_lo, 4); |
| 223 | $if MR > 1: |
| 224 | *((uint16_t*) c1) = (uint16_t) _mm_extract_epi16(vout_hi, 0); |
| 225 | *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout_lo, 0); |
| 226 | |
| 227 | $for M in reversed(range(MR)): |
| 228 | c${M} += 2; |
| 229 | |
| 230 | vout_lo = _mm_srli_epi32(vout_lo, 16); |
| 231 | vout_hi = _mm_srli_epi32(vout_hi, 16); |
| 232 | } |
| 233 | if (nc & 1) { |
| 234 | $if MR > 3: |
| 235 | *c3 = (uint8_t) _mm_extract_epi8(vout_hi, 8); |
| 236 | $if MR > 2: |
| 237 | *c2 = (uint8_t) _mm_extract_epi8(vout_lo, 8); |
| 238 | $if MR > 1: |
| 239 | *c1 = (uint8_t) _mm_extract_epi8(vout_hi, 0); |
| 240 | *c0 = (int8_t) _mm_extract_epi8(vout_lo, 0); |
| 241 | } |
| 242 | |
| 243 | nc = 0; |
| 244 | } |
| 245 | } while (nc != 0); |
| 246 | } |