Chris Wilson | b98bade | 2013-08-20 21:39:27 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2013 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 | |
Chris Wilson | f9a50de | 2013-08-17 11:12:07 +0100 | [diff] [blame] | 25 | #include <unistd.h> |
| 26 | #include <fcntl.h> |
Chris Wilson | e1ed560 | 2013-08-18 18:17:05 +0100 | [diff] [blame] | 27 | #include <errno.h> |
| 28 | #include <stdio.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <string.h> |
Chris Wilson | f9a50de | 2013-08-17 11:12:07 +0100 | [diff] [blame] | 31 | |
| 32 | #include "gem-objects.h" |
Chris Wilson | 9574cb1 | 2013-08-23 15:51:21 +0100 | [diff] [blame^] | 33 | #include "debugfs.h" |
Chris Wilson | f9a50de | 2013-08-17 11:12:07 +0100 | [diff] [blame] | 34 | |
Chris Wilson | e1ed560 | 2013-08-18 18:17:05 +0100 | [diff] [blame] | 35 | /* /sys/kernel/debug/dri/0/i915_gem_objects: |
| 36 | * 46 objects, 20107264 bytes |
| 37 | * 42 [42] objects, 15863808 [15863808] bytes in gtt |
| 38 | * 0 [0] active objects, 0 [0] bytes |
| 39 | * 42 [42] inactive objects, 15863808 [15863808] bytes |
| 40 | * 0 unbound objects, 0 bytes |
| 41 | * 3 purgeable objects, 4456448 bytes |
| 42 | * 30 pinned mappable objects, 3821568 bytes |
| 43 | * 1 fault mappable objects, 3145728 bytes |
| 44 | * 2145386496 [536870912] gtt total |
| 45 | * |
| 46 | * Xorg: 35 objects, 16347136 bytes (0 active, 12103680 inactive, 0 unbound) |
| 47 | */ |
| 48 | |
| 49 | int gem_objects_init(struct gem_objects *obj) |
Chris Wilson | f9a50de | 2013-08-17 11:12:07 +0100 | [diff] [blame] | 50 | { |
Chris Wilson | e1ed560 | 2013-08-18 18:17:05 +0100 | [diff] [blame] | 51 | char buf[8192], *b; |
| 52 | int fd, len; |
| 53 | |
| 54 | memset(obj, 0, sizeof(*obj)); |
Chris Wilson | f9a50de | 2013-08-17 11:12:07 +0100 | [diff] [blame] | 55 | |
Chris Wilson | 9574cb1 | 2013-08-23 15:51:21 +0100 | [diff] [blame^] | 56 | sprintf(buf, "%s/i915_gem_objects", debugfs_path); |
| 57 | fd = open(buf, 0); |
Chris Wilson | e1ed560 | 2013-08-18 18:17:05 +0100 | [diff] [blame] | 58 | if (fd < 0) |
| 59 | return errno; |
| 60 | len = read(fd, buf, sizeof(buf)-1); |
| 61 | close(fd); |
| 62 | |
| 63 | if (len < 0) |
| 64 | return EIO; |
| 65 | |
| 66 | b = strstr(buf, "gtt total"); |
| 67 | if (b == NULL) |
| 68 | return EIO; |
| 69 | |
| 70 | while (*b != '\n') |
| 71 | b--; |
| 72 | |
| 73 | sscanf(b, "%ld [%ld]", |
| 74 | &obj->max_gtt, &obj->max_aperture); |
| 75 | |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | static void insert_sorted(struct gem_objects *obj, |
| 80 | struct gem_objects_comm *comm) |
| 81 | { |
| 82 | struct gem_objects_comm *next, **prev; |
| 83 | |
| 84 | for (prev = &obj->comm; (next = *prev) != NULL; prev = &next->next) |
| 85 | if (comm->bytes > next->bytes) |
| 86 | break; |
| 87 | |
| 88 | comm->next = *prev; |
| 89 | *prev = comm; |
| 90 | } |
| 91 | |
| 92 | int gem_objects_update(struct gem_objects *obj) |
| 93 | { |
| 94 | char buf[8192], *b; |
| 95 | struct gem_objects_comm *comm; |
| 96 | struct gem_objects_comm *freed; |
| 97 | int fd, len, ret; |
| 98 | |
| 99 | freed = obj->comm; |
| 100 | obj->comm = NULL; |
| 101 | |
Chris Wilson | 9574cb1 | 2013-08-23 15:51:21 +0100 | [diff] [blame^] | 102 | sprintf(buf, "%s/i915_gem_objects", debugfs_path); |
| 103 | fd = open(buf, 0); |
Chris Wilson | e1ed560 | 2013-08-18 18:17:05 +0100 | [diff] [blame] | 104 | if (fd < 0) { |
| 105 | ret = errno; |
| 106 | goto done; |
| 107 | } |
| 108 | len = read(fd, buf, sizeof(buf)-1); |
| 109 | close(fd); |
| 110 | |
| 111 | if (len < 0) { |
| 112 | ret = EIO; |
| 113 | goto done; |
Chris Wilson | f9a50de | 2013-08-17 11:12:07 +0100 | [diff] [blame] | 114 | } |
| 115 | |
Chris Wilson | e1ed560 | 2013-08-18 18:17:05 +0100 | [diff] [blame] | 116 | buf[len] = '\0'; |
| 117 | while (buf[--len] == '\n') |
| 118 | buf[len] = '\0'; |
| 119 | |
| 120 | b = buf; |
| 121 | |
| 122 | sscanf(b, "%d objects, %ld bytes", |
| 123 | &obj->total_count, &obj->total_bytes); |
| 124 | |
| 125 | b = strchr(b, '\n'); |
| 126 | sscanf(b, "%*d [%*d] objects, %ld [%ld] bytes in gtt", |
| 127 | &obj->total_gtt, &obj->total_aperture); |
| 128 | |
| 129 | ret = 0; |
| 130 | b = strchr(b, ':'); |
| 131 | if (b == NULL) |
| 132 | goto done; |
| 133 | |
| 134 | while (*b != '\n') |
| 135 | b--; |
| 136 | |
| 137 | do { |
| 138 | comm = freed; |
| 139 | if (comm) |
| 140 | freed = comm->next; |
| 141 | else |
| 142 | comm = malloc(sizeof(*comm)); |
| 143 | if (comm == NULL) |
| 144 | break; |
| 145 | |
| 146 | /* Xorg: 35 objects, 16347136 bytes (0 active, 12103680 inactive, 0 unbound) */ |
| 147 | sscanf(++b, "%256s %u objects, %lu bytes", |
| 148 | comm->name, &comm->count, &comm->bytes); |
| 149 | |
| 150 | insert_sorted(obj, comm); |
| 151 | } while ((b = strchr(b, '\n')) != NULL); |
| 152 | |
| 153 | done: |
| 154 | while (freed) { |
| 155 | comm = freed; |
| 156 | freed = comm->next; |
| 157 | free(comm); |
| 158 | } |
| 159 | |
| 160 | return ret; |
Chris Wilson | f9a50de | 2013-08-17 11:12:07 +0100 | [diff] [blame] | 161 | } |