2 * Copyright 2003 Eric Anholt
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 /** @file drm_sysctl.c
25 * Implementation of various sysctls for controlling DRM behavior and reporting
32 #include <sys/sysctl.h>
34 static int drm_name_info DRM_SYSCTL_HANDLER_ARGS;
35 static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS;
36 static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS;
37 static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS;
39 struct drm_sysctl_list {
41 int (*f) DRM_SYSCTL_HANDLER_ARGS;
42 } drm_sysctl_list[] = {
43 {"name", drm_name_info},
45 {"clients", drm_clients_info},
46 {"bufs", drm_bufs_info},
48 #define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0]))
50 struct drm_sysctl_info {
51 struct sysctl_ctx_list ctx;
55 int drm_sysctl_init(struct drm_device *dev)
57 struct drm_sysctl_info *info;
58 struct sysctl_oid *oid;
59 struct sysctl_oid *top, *drioid;
62 info = malloc(sizeof *info, M_DRM, M_WAITOK | M_ZERO);
67 /* Add the sysctl node for DRI if it doesn't already exist */
68 drioid = SYSCTL_ADD_NODE( &info->ctx, &sysctl__hw_children, OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics");
72 /* Find the next free slot under hw.dri */
74 SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) {
75 if (i <= oid->oid_arg2)
76 i = oid->oid_arg2 + 1;
81 /* Add the hw.dri.x for our device */
82 info->name[0] = '0' + i;
84 top = SYSCTL_ADD_NODE( &info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL);
88 for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) {
89 oid = SYSCTL_ADD_OID(&info->ctx,
92 drm_sysctl_list[i].name,
93 CTLTYPE_INT | CTLFLAG_RD,
102 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(top), OID_AUTO, "debug",
103 CTLFLAG_RW, &drm_debug_flag, sizeof(drm_debug_flag),
104 "Enable debugging output");
109 int drm_sysctl_cleanup(struct drm_device *dev)
112 error = sysctl_ctx_free( &dev->sysctl->ctx );
114 free(dev->sysctl, M_DRM);
120 #define DRM_SYSCTL_PRINT(fmt, arg...) \
122 snprintf(buf, sizeof(buf), fmt, ##arg); \
123 retcode = SYSCTL_OUT(req, buf, strlen(buf)); \
128 static int drm_name_info DRM_SYSCTL_HANDLER_ARGS
130 struct drm_device *dev = arg1;
135 DRM_SYSCTL_PRINT("%s 0x%x", dev->driver.name, dev2udev(dev->devnode));
139 snprintf(buf, sizeof(buf), " %s", dev->unique);
145 SYSCTL_OUT(req, buf, strlen(buf));
147 SYSCTL_OUT(req, "", 1);
153 static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS
155 struct drm_device *dev = arg1;
156 drm_local_map_t *map, *tempmaps;
157 const char *types[] = { "FB", "REG", "SHM", "AGP", "SG" };
158 const char *type, *yesno;
163 /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a
164 * temporary copy of all the map entries and then SYSCTL_OUT that.
169 TAILQ_FOREACH(map, &dev->maplist, link)
172 tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, M_DRM, M_NOWAIT);
173 if (tempmaps == NULL) {
179 TAILQ_FOREACH(map, &dev->maplist, link)
180 tempmaps[i++] = *map;
184 DRM_SYSCTL_PRINT("\nslot offset size type flags "
187 for (i = 0; i < mapcount; i++) {
190 if (map->type < 0 || map->type > 4)
193 type = types[map->type];
201 "%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08lx %s\n", i,
202 map->offset, map->size, type, map->flags,
203 (unsigned long)map->handle, yesno);
205 SYSCTL_OUT(req, "", 1);
208 free(tempmaps, M_DRM);
212 static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS
214 struct drm_device *dev = arg1;
215 drm_device_dma_t *dma = dev->dma;
216 drm_device_dma_t tempdma;
222 /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary
223 * copy of the whole structure and the relevant data from buflist.
230 DRM_SPINLOCK(&dev->dma_lock);
232 templists = malloc(sizeof(int) * dma->buf_count, M_DRM, M_NOWAIT);
233 for (i = 0; i < dma->buf_count; i++)
234 templists[i] = dma->buflist[i]->list;
236 DRM_SPINUNLOCK(&dev->dma_lock);
239 DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n");
240 for (i = 0; i <= DRM_MAX_ORDER; i++) {
241 if (dma->bufs[i].buf_count)
242 DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n",
244 dma->bufs[i].buf_size,
245 dma->bufs[i].buf_count,
246 atomic_read(&dma->bufs[i]
248 dma->bufs[i].seg_count,
249 dma->bufs[i].seg_count
250 *(1 << dma->bufs[i].page_order),
251 (dma->bufs[i].seg_count
252 * (1 << dma->bufs[i].page_order))
255 DRM_SYSCTL_PRINT("\n");
256 for (i = 0; i < dma->buf_count; i++) {
257 if (i && !(i%32)) DRM_SYSCTL_PRINT("\n");
258 DRM_SYSCTL_PRINT(" %d", templists[i]);
260 DRM_SYSCTL_PRINT("\n");
262 SYSCTL_OUT(req, "", 1);
264 free(templists, M_DRM);
268 static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS
270 struct drm_device *dev = arg1;
271 drm_file_t *priv, *tempprivs;
279 TAILQ_FOREACH(priv, &dev->files, link)
282 tempprivs = malloc(sizeof(drm_file_t) * privcount, M_DRM, M_NOWAIT);
283 if (tempprivs == NULL) {
288 TAILQ_FOREACH(priv, &dev->files, link)
289 tempprivs[i++] = *priv;
293 DRM_SYSCTL_PRINT("\na dev pid uid magic ioctls\n");
294 for (i = 0; i < privcount; i++) {
295 priv = &tempprivs[i];
296 DRM_SYSCTL_PRINT("%c %3d %5d %5d %10u %10lu\n",
297 priv->authenticated ? 'y' : 'n',
305 SYSCTL_OUT(req, "", 1);
307 free(tempprivs, M_DRM);