aboutsummaryrefslogtreecommitdiff
path: root/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_s8_to_s16.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_s8_to_s16.hpp')
-rw-r--r--src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_s8_to_s16.hpp224
1 files changed, 224 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_s8_to_s16.hpp b/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_s8_to_s16.hpp
new file mode 100644
index 0000000000..37344a82a9
--- /dev/null
+++ b/src/core/NEON/kernels/arm_gemm/transforms/a64_interleave_8way_s8_to_s16.hpp
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2017-2020 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#pragma once
+
+#if defined(__aarch64__) && defined(__ARM_FP16_ARGS)
+
+#include <arm_neon.h>
+#include <cstdint>
+
+#include "../asmlib.hpp"
+
+template<>
+template<>
+inline void TransformImpl<8, 1, false, 2, 1, false>::Transform(int16_t *out, const int8_t *in, int ldin, int y0, int ymax, int k0, int kmax) {
+ int16_t *outptr = out;
+ const int8_t *inptr = in;
+ bool first = true;
+
+ int8_t zerobuff[32] = { 0 }; // 16 for asm loop plus up to 15 for overflow loop
+
+ for (int y=y0; y<ymax; y+=8) {
+ const int8_t *inptr0 = inptr + y * ldin + k0;
+ const int8_t *inptr1 = inptr0 + ldin;
+ const int8_t *inptr2 = inptr1 + ldin;
+ const int8_t *inptr3 = inptr2 + ldin;
+ const int8_t *inptr4 = inptr3 + ldin;
+ const int8_t *inptr5 = inptr4 + ldin;
+ const int8_t *inptr6 = inptr5 + ldin;
+ const int8_t *inptr7 = inptr6 + ldin;
+
+ prefetch_2x(inptr0);
+ prefetch_2x(inptr1);
+ prefetch_2x(inptr2);
+ prefetch_2x(inptr3);
+ prefetch_2x(inptr4);
+ prefetch_2x(inptr5);
+ prefetch_2x(inptr6);
+ prefetch_2x(inptr7);
+
+ int x=(kmax-k0);
+ for (;(x>15) || first;x-=16) {
+ /* Cope with ragged cases by copying from a buffer of zeroes instead */
+ /* 'first' forces this to always run at least once, needed if the total size is <=7. */
+ if ((y + 7) >= ymax) {
+ switch ((y + 7) - ymax) {
+ case 6:
+ inptr1 = zerobuff;
+ // fall through
+ case 5:
+ inptr2 = zerobuff;
+ // fall through
+ case 4:
+ inptr3 = zerobuff;
+ // fall through
+ case 3:
+ inptr4 = zerobuff;
+ // fall through
+ case 2:
+ inptr5 = zerobuff;
+ // fall through
+ case 1:
+ inptr6 = zerobuff;
+ // fall through
+ case 0:
+ inptr7 = zerobuff;
+ break;
+
+ default:
+ UNREACHABLE("Impossible.");
+ }
+ }
+
+ if (first) {
+ if (x<=15) {
+ break;
+ }
+
+ first = false;
+ }
+
+ __asm __volatile (
+ // Load up 16 elements (1 source vector, 2 destination vectors) from each of 8 sources.
+ "LDR q0, [%[inptr0]], #16\n"
+ "LDR q2, [%[inptr1]], #16\n"
+ "SSHLL2 v1.8h, v0.16b, #0\n"
+ "SSHLL v0.8h, v0.8b, #0\n"
+ "LDR q4, [%[inptr2]], #16\n" // q4=C0C1C2C3
+ "SSHLL2 v3.8h, v2.16b, #0\n"
+ "SSHLL v2.8h, v2.8b, #0\n"
+ "SSHLL2 v5.8h, v4.16b, #0\n"
+ "SSHLL v4.8h, v4.8b, #0\n"
+ "ZIP1 v16.8h, v0.8h, v4.8h\n" // q16=A0C0A1C1
+ ASM_PREFETCH("[%[inptr0], #128]")
+ "LDR q6, [%[inptr3]], #16\n" // q6=D0D1D2D3
+ "SSHLL2 v7.8h, v6.16b, #0\n"
+ "SSHLL v6.8h, v6.8b, #0\n"
+ "ZIP1 v17.8h, v2.8h, v6.8h\n" // q17=B0D0B1D1
+ "LDR q8, [%[inptr4]], #16\n"
+ "LDR q10, [%[inptr5]], #16\n"
+ "SSHLL2 v9.8h, v8.16b, #0\n"
+ "SSHLL v8.8h, v8.8b, #0\n"
+ ASM_PREFETCH("[%[inptr1], #128]")
+ "LDR q12, [%[inptr6]], #16\n"
+ "SSHLL2 v11.8h, v10.16b, #0\n"
+ "SSHLL v10.8h, v10.8b, #0\n"
+ "SSHLL2 v13.8h, v12.16b, #0\n"
+ "SSHLL v12.8h, v12.8b, #0\n"
+ "ZIP1 v18.8h, v8.8h, v12.8h\n"
+ "LDR q14, [%[inptr7]], #16\n"
+ "SSHLL2 v15.8h, v14.16b, #0\n"
+ "SSHLL v14.8h, v14.8b, #0\n"
+ "ZIP1 v19.8h, v10.8h, v14.8h\n"
+
+ ASM_PREFETCH("[%[inptr2], #128]")
+ "ZIP1 v20.8h, v16.8h, v17.8h\n" // q20=A0B0C0D0A1B1C1D1
+ "ZIP1 v21.8h, v18.8h, v19.8h\n" // q21=E0F0G0H0E1F1G1H1
+ "ZIP2 v22.8h, v16.8h, v17.8h\n" // q22=A2B2C2D2A3B3C3D3
+ "ZIP2 v23.8h, v18.8h, v19.8h\n" // q23=E2F2G2H1E3F3G3H3
+ ASM_PREFETCH("[%[inptr3], #128]")
+
+ "ZIP2 v16.8h, v0.8h, v4.8h\n"
+ "ZIP2 v17.8h, v2.8h, v6.8h\n"
+ "TRN1 v24.2d, v20.2d, v21.2d\n"
+ "TRN2 v25.2d, v20.2d, v21.2d\n"
+
+ "ZIP2 v18.8h, v8.8h, v12.8h\n"
+ ASM_PREFETCH("[%[inptr4], #128]")
+ "ZIP2 v19.8h, v10.8h, v14.8h\n"
+ "STP q24, q25, [%[outptr]], #32\n" // Write back the first element of each source
+ "TRN1 v24.2d, v22.2d, v23.2d\n"
+ "TRN2 v25.2d, v22.2d, v23.2d\n"
+
+ "ZIP1 v20.8h, v16.8h, v17.8h\n"
+ "ZIP1 v21.8h, v18.8h, v19.8h\n"
+ ASM_PREFETCH("[%[inptr5], #128]")
+ "ZIP2 v22.8h, v16.8h, v17.8h\n"
+ "ZIP2 v23.8h, v18.8h, v19.8h\n"
+ "STP q24, q25, [%[outptr]], #32\n" // Write back the second element of each source
+
+ "ZIP1 v16.8h, v1.8h, v5.8h\n"
+ "ZIP1 v17.8h, v3.8h, v7.8h\n"
+ ASM_PREFETCH("[%[inptr6], #128]")
+ "TRN1 v24.2d, v20.2d, v21.2d\n"
+ "TRN2 v25.2d, v20.2d, v21.2d\n"
+
+ "ZIP1 v18.8h, v9.8h, v13.8h\n"
+ "ZIP1 v19.8h, v11.8h, v15.8h\n"
+ "STP q24, q25, [%[outptr]], #32\n" // Third element
+ "TRN1 v24.2d, v22.2d, v23.2d\n"
+ "TRN2 v25.2d, v22.2d, v23.2d\n"
+ ASM_PREFETCH("[%[inptr7], #128]")
+
+ "ZIP1 v20.8h, v16.8h, v17.8h\n"
+ "ZIP1 v21.8h, v18.8h, v19.8h\n"
+ "STP q24, q25, [%[outptr]], #32\n" // Fourth element
+ "ZIP2 v22.8h, v16.8h, v17.8h\n"
+ "ZIP2 v23.8h, v18.8h, v19.8h\n"
+
+ "ZIP2 v16.8h, v1.8h, v5.8h\n"
+ "ZIP2 v17.8h, v3.8h, v7.8h\n"
+ "TRN1 v24.2d, v20.2d, v21.2d\n"
+ "TRN2 v25.2d, v20.2d, v21.2d\n"
+
+ "ZIP2 v18.8h, v9.8h, v13.8h\n"
+ "ZIP2 v19.8h, v11.8h, v15.8h\n"
+ "STP q24, q25, [%[outptr]], #32\n" // Fifth element
+ "TRN1 v24.2d, v22.2d, v23.2d\n"
+ "TRN2 v25.2d, v22.2d, v23.2d\n"
+
+ "ZIP1 v20.8h, v16.8h, v17.8h\n"
+ "ZIP1 v21.8h, v18.8h, v19.8h\n"
+ "STP q24, q25, [%[outptr]], #32\n" // Sixth element
+ "TRN1 v24.2d, v20.2d, v21.2d\n"
+ "TRN2 v25.2d, v20.2d, v21.2d\n"
+
+ "ZIP2 v22.8h, v16.8h, v17.8h\n"
+ "ZIP2 v23.8h, v18.8h, v19.8h\n"
+ "STP q24, q25, [%[outptr]], #32\n" // Seventh element
+ "TRN1 v24.2d, v22.2d, v23.2d\n"
+ "TRN2 v25.2d, v22.2d, v23.2d\n"
+ "STP q24, q25, [%[outptr]], #32\n" // Eighth element
+ : [inptr0] "+r" (inptr0), [inptr1] "+r" (inptr1), [inptr2] "+r" (inptr2), [inptr3] "+r" (inptr3),
+ [inptr4] "+r" (inptr4), [inptr5] "+r" (inptr5), [inptr6] "+r" (inptr6), [inptr7] "+r" (inptr7), [outptr] "+r" (outptr)
+ :
+ : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9", "v10", "v11", "v12",
+ "v13", "v14", "v15", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "memory"
+ );
+ }
+
+ for (;x>0;x--) {
+ *outptr++ = *inptr0++;
+ *outptr++ = *inptr1++;
+ *outptr++ = *inptr2++;
+ *outptr++ = *inptr3++;
+ *outptr++ = *inptr4++;
+ *outptr++ = *inptr5++;
+ *outptr++ = *inptr6++;
+ *outptr++ = *inptr7++;
+ }
+ }
+}
+
+#endif // __aarch64__ && __ARM_FP16_ARGS