1 /*
2 * Copyright (c) 2022 Arm Limited.
3 *
4 * SPDX-License-Identifier: MIT
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 */
24
25 #if defined(__ARM_FEATURE_SVE)
26
27 template <>
interleave_block(bfloat16 * & out,const bfloat16 * const * in,size_t width,size_t height,size_t row_offset,bool first)28 void interleave_block<2, 1, VLType::SME, false>(
29 bfloat16 * &out, const bfloat16 * const *in,
30 size_t width, size_t height, size_t row_offset, bool first
31 )
32 {
33 ARM_COMPUTE_UNUSED(first);
34
35 __asm__ __volatile__(
36 ".inst 0xd503477f // SMSTART ZA\n"
37 "cnth x27\n"
38 "cmp %x[height], x27\n"
39 "cnth x26\n"
40 "csel x27, %x[height], x27, LT\n"
41 "mov x25, #0x0\n"
42 "ptrue p13.s\n"
43 "sub x27, x27, #0x1\n"
44 "whilelt p12.h, XZR, %x[height]\n"
45 "whilelt p11.h, x26, %x[height]\n"
46 "mov x24, %x[row_offset]\n"
47 "mov x23, %x[out]\n"
48 "whilelt p10.h, x25, %x[width]\n"
49 "whilelt p9.h, x25, %x[width]\n"
50 "whilelt p8.h, x25, %x[width]\n"
51 "1:" // Width loop
52 "add x22, %x[in], XZR, LSL #3\n"
53 "add x19, %x[in], x26, LSL #3\n"
54 "ldr x21, [x22], #0x8\n"
55 "mov x12, #0x0\n"
56 "ldr x20, [x19], #0x8\n"
57 "cbz x27, 3f\n"
58 "2:" // Loads: Loop
59 ".inst 0x25286581 // psel p1.h, p9.h/Z, p12.h[w12]\n"
60 ".inst 0x25286160 // psel p0.h, p8.h/Z, p11.h[w12]\n"
61 ".inst 0xe05806a0 // ld1h { za0h.h[x12] }, p1/Z, [x21, x24, LSL #1]\n"
62 "ldr x21, [x22], #0x8\n"
63 ".inst 0xe0580288 // ld1h { za1h.h[x12] }, p0/Z, [x20, x24, LSL #1]\n"
64 "add x12, x12, #0x2\n"
65 "cmp x12, x27, LSL #1\n"
66 "ldr x20, [x19], #0x8\n"
67 "blt 2b\n"
68 "3:" // Loads: Tail
69 "sub x19, %x[width], x25\n"
70 ".inst 0x25286580 // psel p0.h, p9.h/Z, p12.h[w12]\n"
71 ".inst 0xe05802a0 // ld1h { za0h.h[x12] }, p0/Z, [x21, x24, LSL #1]\n"
72 ".inst 0x25286160 // psel p0.h, p8.h/Z, p11.h[w12]\n"
73 "cmp x19, x26\n"
74 ".inst 0xe0580288 // ld1h { za1h.h[x12] }, p0/Z, [x20, x24, LSL #1]\n"
75 "mov x12, #0x0\n"
76 "csel x19, x19, x26, LT\n"
77 "4:" // Stores: Loop
78 ".inst 0x25287540 // psel p0.h, p13.h/Z, p10.h[w12]\n"
79 ".inst 0xe07f82e0 // st1h { za0v.h[x12] }, p0/Z, [x23, XZR, LSL #1]\n"
80 ".inst 0x25287540 // psel p0.h, p13.h/Z, p10.h[w12]\n"
81 ".inst 0xe07a82e8 // st1h { za1v.h[x12] }, p0/Z, [x23, x26, LSL #1]\n"
82 "add x12, x12, #0x1\n"
83 "cmp x12, x19\n"
84 "addvl x23, x23, #4\n"
85 "blt 4b\n"
86 "inch x25\n"
87 "whilelt p10.h, x25, %x[width]\n"
88 "whilelt p9.h, x25, %x[width]\n"
89 "whilelt p8.h, x25, %x[width]\n"
90 "inch x24\n"
91 "b.any 1b\n"
92 "mov %x[out], x23\n"
93 ".inst 0xd503467f // SMSTOP\n"
94 : [out] "+&r" (out)
95 : [height] "r" (height), [in] "r" (in), [row_offset] "r" (row_offset), [width] "r" (width)
96 : "cc", "memory", "p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", "x12", "x19", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "x27", "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7", "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15", "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23", "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31"
97 );
98 }
99
100 #endif // defined(__ARM_FEATURE_SVE)
101