1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ART_RUNTIME_ARCH_MIPS64_ASM_SUPPORT_MIPS64_H_
18#define ART_RUNTIME_ARCH_MIPS64_ASM_SUPPORT_MIPS64_H_
19
20#include "asm_support.h"
21
22// 64 ($f24-$f31) + 64 ($s0-$s7) + 8 ($gp) + 8 ($s8) + 8 ($ra) + 1x8 bytes padding
23#define FRAME_SIZE_SAVE_ALL_CALLEE_SAVES 160
24// 48 ($s2-$s7) + 8 ($gp) + 8 ($s8) + 8 ($ra) + 1x8 bytes padding
25#define FRAME_SIZE_SAVE_REFS_ONLY 80
26// $f12-$f19, $a1-$a7, $s2-$s7 + $gp + $s8 + $ra, 16 total + 1x8 bytes padding + method*
27#define FRAME_SIZE_SAVE_REFS_AND_ARGS 208
28// $f0-$f31, $at, $v0-$v1, $a0-$a7, $t0-$t3, $s0-$s7, $t8-$t9, $gp, $s8, $ra + padding + method*
29#define FRAME_SIZE_SAVE_EVERYTHING 496
30#define FRAME_SIZE_SAVE_EVERYTHING_FOR_CLINIT FRAME_SIZE_SAVE_EVERYTHING
31#define FRAME_SIZE_SAVE_EVERYTHING_FOR_SUSPEND_CHECK FRAME_SIZE_SAVE_EVERYTHING
32
33// &art_quick_read_barrier_mark_introspection is the first of many entry points:
34//   20 entry points for long field offsets, large array indices and variable array indices
35//     (see macro BRB_FIELD_LONG_OFFSET_ENTRY)
36//   20 entry points for short field offsets and small array indices
37//     (see macro BRB_FIELD_SHORT_OFFSET_ENTRY)
38//   20 entry points for GC roots
39//     (see macro BRB_GC_ROOT_ENTRY)
40
41// There are as many entry points of each kind as there are registers that
42// can hold a reference: V0-V1, A0-A7, T0-T2, S2-S8.
43#define BAKER_MARK_INTROSPECTION_REGISTER_COUNT 20
44
45#define BAKER_MARK_INTROSPECTION_FIELD_ARRAY_ENTRY_SIZE (8 * 4)  // 8 instructions in
46                                                                 // BRB_FIELD_*_OFFSET_ENTRY.
47
48#define BAKER_MARK_INTROSPECTION_GC_ROOT_ENTRIES_OFFSET \
49    (2 * BAKER_MARK_INTROSPECTION_REGISTER_COUNT * BAKER_MARK_INTROSPECTION_FIELD_ARRAY_ENTRY_SIZE)
50
51#define BAKER_MARK_INTROSPECTION_GC_ROOT_ENTRY_SIZE (4 * 4)  // 4 instructions in BRB_GC_ROOT_ENTRY.
52
53#endif  // ART_RUNTIME_ARCH_MIPS64_ASM_SUPPORT_MIPS64_H_
54