1 /*
2 * Copyright © 2011,2012 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 * Chris Wilson <chris@chris-wilson.co.uk>
25 * Daniel Vetter <daniel.vetter@ffwll.ch>
26 *
27 */
28
29 /*
30 * Testcase: run a couple of big batches to force the unbind on misalignment code.
31 */
32
33 #include "igt.h"
34 #include <unistd.h>
35 #include <stdlib.h>
36 #include <stdint.h>
37 #include <stdio.h>
38 #include <string.h>
39 #include <fcntl.h>
40 #include <inttypes.h>
41 #include <errno.h>
42 #include <sys/stat.h>
43 #include <sys/ioctl.h>
44 #include <sys/time.h>
45
46 #include <drm.h>
47
48
49 IGT_TEST_DESCRIPTION("Run a couple of big batches to force the unbind on"
50 " misalignment code.");
51
52 #define HEIGHT 256
53 #define WIDTH 1024
54
55 static void
copy(int fd,uint32_t dst,uint32_t src,uint32_t * all_bo,uint64_t n_bo,uint64_t alignment,int error)56 copy(int fd, uint32_t dst, uint32_t src, uint32_t *all_bo,
57 uint64_t n_bo, uint64_t alignment, int error)
58 {
59 uint32_t batch[12];
60 struct drm_i915_gem_relocation_entry reloc[2];
61 struct drm_i915_gem_exec_object2 *obj;
62 struct drm_i915_gem_execbuffer2 exec;
63 uint32_t handle;
64 int n, i=0;
65
66 batch[i++] = (XY_SRC_COPY_BLT_CMD |
67 XY_SRC_COPY_BLT_WRITE_ALPHA |
68 XY_SRC_COPY_BLT_WRITE_RGB | 6);
69 if (intel_gen(intel_get_drm_devid(fd)) >= 8)
70 batch[i - 1] += 2;
71 batch[i++] = (3 << 24) | /* 32 bits */
72 (0xcc << 16) | /* copy ROP */
73 WIDTH*4;
74 batch[i++] = 0; /* dst x1,y1 */
75 batch[i++] = (HEIGHT << 16) | WIDTH; /* dst x2,y2 */
76 batch[i++] = 0; /* dst reloc */
77 if (intel_gen(intel_get_drm_devid(fd)) >= 8)
78 batch[i++] = 0; /* FIXME */
79 batch[i++] = 0; /* src x1,y1 */
80 batch[i++] = WIDTH*4;
81 batch[i++] = 0; /* src reloc */
82 if (intel_gen(intel_get_drm_devid(fd)) >= 8)
83 batch[i++] = 0; /* FIXME */
84 batch[i++] = MI_BATCH_BUFFER_END;
85 batch[i++] = MI_NOOP;
86
87 handle = gem_create(fd, 4096);
88 gem_write(fd, handle, 0, batch, sizeof(batch));
89
90 reloc[0].target_handle = dst;
91 reloc[0].delta = 0;
92 reloc[0].offset = 4 * sizeof(batch[0]);
93 reloc[0].presumed_offset = 0;
94 reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
95 reloc[0].write_domain = I915_GEM_DOMAIN_RENDER;
96
97 reloc[1].target_handle = src;
98 reloc[1].delta = 0;
99 reloc[1].offset = 7 * sizeof(batch[0]);
100 reloc[1].presumed_offset = 0;
101 reloc[1].read_domains = I915_GEM_DOMAIN_RENDER;
102 reloc[1].write_domain = 0;
103
104 obj = calloc(n_bo + 1, sizeof(*obj));
105 for (n = 0; n < n_bo; n++) {
106 obj[n].handle = all_bo[n];
107 obj[n].alignment = alignment;
108 }
109 obj[n].handle = handle;
110 obj[n].relocation_count = 2;
111 obj[n].relocs_ptr = to_user_pointer(reloc);
112
113 exec.buffers_ptr = to_user_pointer(obj);
114 exec.buffer_count = n_bo + 1;
115 exec.batch_start_offset = 0;
116 exec.batch_len = i * 4;
117 exec.DR1 = exec.DR4 = 0;
118 exec.num_cliprects = 0;
119 exec.cliprects_ptr = 0;
120 exec.flags = HAS_BLT_RING(intel_get_drm_devid(fd)) ? I915_EXEC_BLT : 0;
121 i915_execbuffer2_set_context_id(exec, 0);
122 exec.rsvd2 = 0;
123
124 igt_assert_eq(__gem_execbuf(fd, &exec), -error);
125
126 gem_close(fd, handle);
127 free(obj);
128 }
129
minor_evictions(int fd,uint64_t size,uint64_t count)130 static void minor_evictions(int fd, uint64_t size, uint64_t count)
131 {
132 uint32_t *bo, *sel;
133 uint64_t n, m, alignment;
134 int pass, fail;
135
136 intel_require_memory(2 * count, size, CHECK_RAM);
137
138 bo = malloc(3*count*sizeof(*bo));
139 igt_assert(bo);
140
141 for (n = 0; n < 2*count; n++)
142 bo[n] = gem_create(fd, size);
143
144 sel = bo + n;
145 for (alignment = m = 4096; alignment <= size; alignment <<= 1) {
146 for (fail = 0; fail < 10; fail++) {
147 for (pass = 0; pass < 100; pass++) {
148 for (n = 0; n < count; n++, m += 7)
149 sel[n] = bo[m%(2*count)];
150 copy(fd, sel[0], sel[1], sel, count, alignment, 0);
151 }
152 copy(fd, bo[0], bo[0], bo, 2*count, alignment, ENOSPC);
153 }
154 }
155
156 for (n = 0; n < 2*count; n++)
157 gem_close(fd, bo[n]);
158 free(bo);
159 }
160
major_evictions(int fd,uint64_t size,uint64_t count)161 static void major_evictions(int fd, uint64_t size, uint64_t count)
162 {
163 uint64_t n, m, alignment, max;
164 int loop;
165 uint32_t *bo;
166
167 intel_require_memory(count, size, CHECK_RAM);
168
169 bo = malloc(count*sizeof(*bo));
170 igt_assert(bo);
171
172 for (n = 0; n < count; n++)
173 bo[n] = gem_create(fd, size);
174
175 max = gem_aperture_size(fd) - size;
176 for (alignment = m = 4096; alignment < max; alignment <<= 1) {
177 for (loop = 0; loop < 100; loop++, m += 17) {
178 n = m % count;
179 copy(fd, bo[n], bo[n], &bo[n], 1, alignment, 0);
180 }
181 }
182
183 for (n = 0; n < count; n++)
184 gem_close(fd, bo[n]);
185 free(bo);
186 }
187
188 #define MAX_32b ((1ull << 32) - 4096)
189
190 igt_main
191 {
192 uint64_t size, count;
193 int fd = -1;
194
195 igt_fixture {
196 fd = drm_open_driver(DRIVER_INTEL);
197 igt_require_gem(fd);
198 igt_fork_hang_detector(fd);
199 }
200
201 igt_subtest("minor-normal") {
202 size = 1024 * 1024;
203 count = gem_aperture_size(fd);
204 if (count >> 32)
205 count = MAX_32b;
206 count = 3 * count / size / 4;
207 minor_evictions(fd, size, count);
208 }
209
210 igt_subtest("major-normal") {
211 size = gem_aperture_size(fd);
212 if (size >> 32)
213 size = MAX_32b;
214 size = 3 * size / 4;
215 count = 4;
216 major_evictions(fd, size, count);
217 }
218
219 igt_fixture {
220 igt_stop_hang_detector();
221 }
222
223 igt_fork_signal_helper();
224 igt_subtest("minor-interruptible") {
225 size = 1024 * 1024;
226 count = gem_aperture_size(fd);
227 if (count >> 32)
228 count = MAX_32b;
229 count = 3 * count / size / 4;
230 minor_evictions(fd, size, count);
231 }
232
233 igt_subtest("major-interruptible") {
234 size = gem_aperture_size(fd);
235 if (size >> 32)
236 size = MAX_32b;
237 size = 3 * size / 4;
238 count = 4;
239 major_evictions(fd, size, count);
240 }
241
242 igt_subtest("minor-hang") {
243 igt_fork_hang_helper();
244 size = 1024 * 1024;
245 count = gem_aperture_size(fd);
246 if (count >> 32)
247 count = MAX_32b;
248 count = 3 * count / size / 4;
249 minor_evictions(fd, size, count);
250 }
251
252 igt_subtest("major-hang") {
253 size = gem_aperture_size(fd);
254 if (size >> 32)
255 size = MAX_32b;
256 size = 3 * size / 4;
257 count = 4;
258 major_evictions(fd, size, count);
259 }
260 igt_stop_signal_helper();
261
262 igt_fixture {
263 igt_stop_hang_helper();
264 close(fd);
265 }
266 }
267