1 /*
2 * Copyright (C) 2013 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 #include <sys/mman.h>
18
19 #include <gtest/gtest.h>
20
21 #include <ion/ion.h>
22
23 #include "ion_test_fixture.h"
24
25 class Map : public IonAllHeapsTest {
26 };
27
TEST_F(Map,MapHandle)28 TEST_F(Map, MapHandle)
29 {
30 static const size_t allocationSizes[] = {4*1024, 64*1024, 1024*1024, 2*1024*1024};
31 for (unsigned int heapMask : m_allHeaps) {
32 for (size_t size : allocationSizes) {
33 SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
34 SCOPED_TRACE(::testing::Message() << "size " << size);
35 ion_user_handle_t handle = 0;
36
37 ASSERT_EQ(0, ion_alloc(m_ionFd, size, 0, heapMask, 0, &handle));
38 ASSERT_TRUE(handle != 0);
39
40 int map_fd = -1;
41 unsigned char *ptr = NULL;
42 ASSERT_EQ(0, ion_map(m_ionFd, handle, size, PROT_READ | PROT_WRITE, MAP_SHARED, 0, &ptr, &map_fd));
43 ASSERT_TRUE(ptr != NULL);
44 ASSERT_GE(map_fd, 0);
45
46 ASSERT_EQ(0, close(map_fd));
47
48 ASSERT_EQ(0, ion_free(m_ionFd, handle));
49
50 memset(ptr, 0xaa, size);
51
52 ASSERT_EQ(0, munmap(ptr, size));
53 }
54 }
55 }
56
TEST_F(Map,MapFd)57 TEST_F(Map, MapFd)
58 {
59 static const size_t allocationSizes[] = {4*1024, 64*1024, 1024*1024, 2*1024*1024};
60 for (unsigned int heapMask : m_allHeaps) {
61 for (size_t size : allocationSizes) {
62 SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
63 SCOPED_TRACE(::testing::Message() << "size " << size);
64 int map_fd = -1;
65
66 ASSERT_EQ(0, ion_alloc_fd(m_ionFd, size, 0, heapMask, 0, &map_fd));
67 ASSERT_GE(map_fd, 0);
68
69 void *ptr;
70 ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
71 ASSERT_TRUE(ptr != NULL);
72
73 ASSERT_EQ(0, close(map_fd));
74
75 memset(ptr, 0xaa, size);
76
77 ASSERT_EQ(0, munmap(ptr, size));
78 }
79 }
80 }
81
TEST_F(Map,MapOffset)82 TEST_F(Map, MapOffset)
83 {
84 for (unsigned int heapMask : m_allHeaps) {
85 SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
86 int map_fd = -1;
87
88 ASSERT_EQ(0, ion_alloc_fd(m_ionFd, PAGE_SIZE * 2, 0, heapMask, 0, &map_fd));
89 ASSERT_GE(map_fd, 0);
90
91 unsigned char *ptr;
92 ptr = (unsigned char *)mmap(NULL, PAGE_SIZE * 2, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
93 ASSERT_TRUE(ptr != NULL);
94
95 memset(ptr, 0, PAGE_SIZE);
96 memset(ptr + PAGE_SIZE, 0xaa, PAGE_SIZE);
97
98 ASSERT_EQ(0, munmap(ptr, PAGE_SIZE * 2));
99
100 ptr = (unsigned char *)mmap(NULL, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, PAGE_SIZE);
101 ASSERT_TRUE(ptr != NULL);
102
103 ASSERT_EQ(ptr[0], 0xaa);
104 ASSERT_EQ(ptr[PAGE_SIZE - 1], 0xaa);
105
106 ASSERT_EQ(0, munmap(ptr, PAGE_SIZE));
107
108 ASSERT_EQ(0, close(map_fd));
109 }
110 }
111
TEST_F(Map,MapCached)112 TEST_F(Map, MapCached)
113 {
114 static const size_t allocationSizes[] = {4*1024, 64*1024, 1024*1024, 2*1024*1024};
115 for (unsigned int heapMask : m_allHeaps) {
116 for (size_t size : allocationSizes) {
117 SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
118 SCOPED_TRACE(::testing::Message() << "size " << size);
119 int map_fd = -1;
120 unsigned int flags = ION_FLAG_CACHED;
121
122 ASSERT_EQ(0, ion_alloc_fd(m_ionFd, size, 0, heapMask, flags, &map_fd));
123 ASSERT_GE(map_fd, 0);
124
125 void *ptr;
126 ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
127 ASSERT_TRUE(ptr != NULL);
128
129 ASSERT_EQ(0, close(map_fd));
130
131 memset(ptr, 0xaa, size);
132
133 ASSERT_EQ(0, munmap(ptr, size));
134 }
135 }
136 }
137
TEST_F(Map,MapCachedNeedsSync)138 TEST_F(Map, MapCachedNeedsSync)
139 {
140 static const size_t allocationSizes[] = {4*1024, 64*1024, 1024*1024, 2*1024*1024};
141 for (unsigned int heapMask : m_allHeaps) {
142 for (size_t size : allocationSizes) {
143 SCOPED_TRACE(::testing::Message() << "heap " << heapMask);
144 SCOPED_TRACE(::testing::Message() << "size " << size);
145 int map_fd = -1;
146 unsigned int flags = ION_FLAG_CACHED | ION_FLAG_CACHED_NEEDS_SYNC;
147
148 ASSERT_EQ(0, ion_alloc_fd(m_ionFd, size, 0, heapMask, flags, &map_fd));
149 ASSERT_GE(map_fd, 0);
150
151 void *ptr;
152 ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
153 ASSERT_TRUE(ptr != NULL);
154
155 ASSERT_EQ(0, close(map_fd));
156
157 memset(ptr, 0xaa, size);
158
159 ASSERT_EQ(0, munmap(ptr, size));
160 }
161 }
162 }
163