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[platform/upstream/libdrm.git] / intel / test_decode.c
1 /*
2  * Copyright © 2011 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
24 #include <string.h>
25 #include <stdlib.h>
26 #include <stdio.h>
27 #include <unistd.h>
28 #include <fcntl.h>
29 #include <sys/types.h>
30 #include <sys/stat.h>
31 #include <err.h>
32
33 #include "libdrm_macros.h"
34 #include "intel_bufmgr.h"
35 #include "intel_chipset.h"
36
37 #define HW_OFFSET 0x12300000
38
39 static void
40 usage(void)
41 {
42         fprintf(stderr, "usage:\n");
43         fprintf(stderr, "  test_decode <batch>\n");
44         fprintf(stderr, "  test_decode <batch> -dump\n");
45         exit(1);
46 }
47
48 static void
49 read_file(const char *filename, void **ptr, size_t *size)
50 {
51         int fd, ret;
52         struct stat st;
53
54         fd = open(filename, O_RDONLY);
55         if (fd < 0)
56                 errx(1, "couldn't open `%s'", filename);
57
58         ret = fstat(fd, &st);
59         if (ret)
60                 errx(1, "couldn't stat `%s'", filename);
61
62         *size = st.st_size;
63         *ptr = drm_mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
64         if (*ptr == MAP_FAILED)
65                 errx(1, "couldn't map `%s'", filename);
66
67         close(fd);
68 }
69
70 static void
71 dump_batch(struct drm_intel_decode *ctx, const char *batch_filename)
72 {
73         void *batch_ptr;
74         size_t batch_size;
75
76         read_file(batch_filename, &batch_ptr, &batch_size);
77
78         drm_intel_decode_set_batch_pointer(ctx, batch_ptr, HW_OFFSET,
79                                            batch_size / 4);
80         drm_intel_decode_set_output_file(ctx, stdout);
81
82         drm_intel_decode(ctx);
83 }
84
85 static void
86 compare_batch(struct drm_intel_decode *ctx, const char *batch_filename)
87 {
88         FILE *out = NULL;
89         void *ptr, *ref_ptr, *batch_ptr;
90 #if HAVE_OPEN_MEMSTREAM
91         size_t size;
92 #endif
93         size_t ref_size, batch_size;
94         const char *ref_suffix = "-ref.txt";
95         char *ref_filename;
96
97         ref_filename = malloc(strlen(batch_filename) + strlen(ref_suffix) + 1);
98         sprintf(ref_filename, "%s%s", batch_filename, ref_suffix);
99
100         /* Read the batch and reference. */
101         read_file(batch_filename, &batch_ptr, &batch_size);
102         read_file(ref_filename, &ref_ptr, &ref_size);
103
104         /* Set up our decode output in memory, because I don't want to
105          * figure out how to output to a file in a safe and sane way
106          * inside of an automake project's test infrastructure.
107          */
108 #if HAVE_OPEN_MEMSTREAM
109         out = open_memstream((char **)&ptr, &size);
110 #else
111         fprintf(stderr, "platform lacks open_memstream, skipping.\n");
112         exit(77);
113 #endif
114
115         drm_intel_decode_set_batch_pointer(ctx, batch_ptr, HW_OFFSET,
116                                            batch_size / 4);
117         drm_intel_decode_set_output_file(ctx, out);
118
119         drm_intel_decode(ctx);
120
121         if (strcmp(ref_ptr, ptr) != 0) {
122                 fprintf(stderr, "Decode mismatch with reference `%s'.\n",
123                         ref_filename);
124                 fprintf(stderr, "You can dump the new output using:\n");
125                 fprintf(stderr, "  test_decode \"%s\" -dump\n", batch_filename);
126                 exit(1);
127         }
128
129         fclose(out);
130         free(ref_filename);
131         free(ptr);
132 }
133
134 static uint16_t
135 infer_devid(const char *batch_filename)
136 {
137         struct {
138                 const char *name;
139                 uint16_t devid;
140         } chipsets[] = {
141                 { "830",  0x3577},
142                 { "855",  0x3582},
143                 { "945",  0x2772},
144                 { "gen4", 0x2a02 },
145                 { "gm45", 0x2a42 },
146                 { "gen5", PCI_CHIP_ILD_G },
147                 { "gen6", PCI_CHIP_SANDYBRIDGE_GT2 },
148                 { "gen7", PCI_CHIP_IVYBRIDGE_GT2 },
149                 { "gen8", 0x1616 },
150                 { NULL, 0 },
151         };
152         int i;
153
154         for (i = 0; chipsets[i].name != NULL; i++) {
155                 if (strstr(batch_filename, chipsets[i].name))
156                         return chipsets[i].devid;
157         }
158
159         fprintf(stderr, "Couldn't guess chipset id from batch filename `%s'.\n",
160                 batch_filename);
161         fprintf(stderr, "Must be contain one of:\n");
162         for (i = 0; chipsets[i].name != NULL; i++) {
163                 fprintf(stderr, "  %s\n", chipsets[i].name);
164         }
165         exit(1);
166 }
167
168 int
169 main(int argc, char **argv)
170 {
171         uint16_t devid;
172         struct drm_intel_decode *ctx;
173
174         if (argc < 2)
175                 usage();
176
177
178         devid = infer_devid(argv[1]);
179
180         ctx = drm_intel_decode_context_alloc(devid);
181
182         if (argc == 3) {
183                 if (strcmp(argv[2], "-dump") == 0)
184                         dump_batch(ctx, argv[1]);
185                 else
186                         usage();
187         } else {
188                 compare_batch(ctx, argv[1]);
189         }
190
191         drm_intel_decode_context_free(ctx);
192
193         return 0;
194 }