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 #include <sys/cdefs.h>
25 __FBSDID("$FreeBSD$");
27 /** @file drm_sysctl.c
28 * Implementation of various sysctls for controlling DRM behavior and reporting
32 #include <dev/drm2/drmP.h>
33 #include <dev/drm2/drm.h>
35 #include <sys/sysctl.h>
37 static int drm_name_info DRM_SYSCTL_HANDLER_ARGS;
38 static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS;
39 static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS;
40 static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS;
41 static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS;
43 struct drm_sysctl_list {
45 int (*f) DRM_SYSCTL_HANDLER_ARGS;
46 } drm_sysctl_list[] = {
47 {"name", drm_name_info},
49 {"clients", drm_clients_info},
50 {"bufs", drm_bufs_info},
51 {"vblank", drm_vblank_info},
53 #define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0]))
55 struct drm_sysctl_info {
56 struct sysctl_ctx_list ctx;
60 int drm_sysctl_init(struct drm_device *dev)
62 struct drm_sysctl_info *info;
63 struct sysctl_oid *oid;
64 struct sysctl_oid *top, *drioid;
67 info = malloc(sizeof *info, DRM_MEM_DRIVER, M_WAITOK | M_ZERO);
70 /* Add the sysctl node for DRI if it doesn't already exist */
71 drioid = SYSCTL_ADD_NODE(&info->ctx, &sysctl__hw_children, OID_AUTO,
72 "dri", CTLFLAG_RW, NULL, "DRI Graphics");
74 free(dev->sysctl, DRM_MEM_DRIVER);
79 /* Find the next free slot under hw.dri */
81 SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) {
82 if (i <= oid->oid_arg2)
83 i = oid->oid_arg2 + 1;
86 drm_sysctl_cleanup(dev);
90 dev->sysctl_node_idx = i;
91 /* Add the hw.dri.x for our device */
92 info->name[0] = '0' + i;
94 top = SYSCTL_ADD_NODE(&info->ctx, SYSCTL_CHILDREN(drioid),
95 OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL);
97 drm_sysctl_cleanup(dev);
101 for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) {
102 oid = SYSCTL_ADD_OID(&info->ctx,
103 SYSCTL_CHILDREN(top),
105 drm_sysctl_list[i].name,
106 CTLTYPE_STRING | CTLFLAG_RD,
109 drm_sysctl_list[i].f,
113 drm_sysctl_cleanup(dev);
117 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "debug",
118 CTLFLAG_RW, &drm_debug, sizeof(drm_debug),
119 "Enable debugging output");
120 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "notyet",
121 CTLFLAG_RW, &drm_notyet, sizeof(drm_debug),
122 "Enable notyet reminders");
124 if (dev->driver->sysctl_init != NULL)
125 dev->driver->sysctl_init(dev, &info->ctx, top);
127 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO,
128 "vblank_offdelay", CTLFLAG_RW, &drm_vblank_offdelay,
129 sizeof(drm_vblank_offdelay),
131 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO,
132 "timestamp_precision", CTLFLAG_RW, &drm_timestamp_precision,
133 sizeof(drm_timestamp_precision),
139 int drm_sysctl_cleanup(struct drm_device *dev)
143 if (dev->sysctl == NULL)
146 error = sysctl_ctx_free(&dev->sysctl->ctx);
147 free(dev->sysctl, DRM_MEM_DRIVER);
149 if (dev->driver->sysctl_cleanup != NULL)
150 dev->driver->sysctl_cleanup(dev);
155 #define DRM_SYSCTL_PRINT(fmt, arg...) \
157 snprintf(buf, sizeof(buf), fmt, ##arg); \
158 retcode = SYSCTL_OUT(req, buf, strlen(buf)); \
163 static int drm_name_info DRM_SYSCTL_HANDLER_ARGS
165 struct drm_device *dev = arg1;
166 struct drm_minor *minor;
167 struct drm_master *master;
172 /* FIXME: This still uses primary minor. */
173 minor = dev->primary;
174 DRM_SYSCTL_PRINT("%s 0x%x", dev->driver->name, dev2udev(minor->device));
177 master = minor->master;
178 if (master != NULL && master->unique) {
179 snprintf(buf, sizeof(buf), " %s", master->unique);
185 SYSCTL_OUT(req, buf, strlen(buf));
187 SYSCTL_OUT(req, "", 1);
193 static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS
195 struct drm_device *dev = arg1;
196 struct drm_map_list *entry;
197 struct drm_local_map *map, *tempmaps;
198 const char *types[] = {
199 [_DRM_FRAME_BUFFER] = "FB",
200 [_DRM_REGISTERS] = "REG",
203 [_DRM_SCATTER_GATHER] = "SG",
204 [_DRM_CONSISTENT] = "CONS",
207 const char *type, *yesno;
212 /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a
213 * temporary copy of all the map entries and then SYSCTL_OUT that.
218 list_for_each_entry(entry, &dev->maplist, head) {
219 if (entry->map != NULL)
223 tempmaps = malloc(sizeof(*tempmaps) * mapcount, DRM_MEM_DRIVER,
225 if (tempmaps == NULL) {
231 list_for_each_entry(entry, &dev->maplist, head) {
232 if (entry->map != NULL)
233 tempmaps[i++] = *entry->map;
238 DRM_SYSCTL_PRINT("\nslot offset size "
239 "type flags address mtrr\n");
241 for (i = 0; i < mapcount; i++) {
248 case _DRM_FRAME_BUFFER:
252 case _DRM_SCATTER_GATHER:
253 case _DRM_CONSISTENT:
255 type = types[map->type];
265 "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%016lx %s\n",
266 i, (unsigned long long)map->offset, map->size, type,
267 map->flags, (unsigned long)map->handle, yesno);
269 SYSCTL_OUT(req, "", 1);
272 free(tempmaps, DRM_MEM_DRIVER);
276 static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS
278 struct drm_device *dev = arg1;
279 struct drm_device_dma *dma = dev->dma;
280 struct drm_device_dma tempdma;
286 /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary
287 * copy of the whole structure and the relevant data from buflist.
294 DRM_SPINLOCK(&dev->dma_lock);
296 templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER,
298 for (i = 0; i < dma->buf_count; i++)
299 templists[i] = dma->buflist[i]->list;
301 DRM_SPINUNLOCK(&dev->dma_lock);
304 DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n");
305 for (i = 0; i <= DRM_MAX_ORDER; i++) {
306 if (dma->bufs[i].buf_count)
307 DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n",
309 dma->bufs[i].buf_size,
310 dma->bufs[i].buf_count,
311 atomic_read(&dma->bufs[i]
313 dma->bufs[i].seg_count,
314 dma->bufs[i].seg_count
315 *(1 << dma->bufs[i].page_order),
316 (dma->bufs[i].seg_count
317 * (1 << dma->bufs[i].page_order))
318 * (int)PAGE_SIZE / 1024);
320 DRM_SYSCTL_PRINT("\n");
321 for (i = 0; i < dma->buf_count; i++) {
322 if (i && !(i%32)) DRM_SYSCTL_PRINT("\n");
323 DRM_SYSCTL_PRINT(" %d", templists[i]);
325 DRM_SYSCTL_PRINT("\n");
327 SYSCTL_OUT(req, "", 1);
329 free(templists, DRM_MEM_DRIVER);
333 static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS
335 struct drm_device *dev = arg1;
336 struct drm_file *priv, *tempprivs;
344 list_for_each_entry(priv, &dev->filelist, lhead)
347 tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER,
349 if (tempprivs == NULL) {
354 list_for_each_entry(priv, &dev->filelist, lhead)
355 tempprivs[i++] = *priv;
360 "\na dev pid uid magic ioctls\n");
361 for (i = 0; i < privcount; i++) {
362 priv = &tempprivs[i];
363 DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n",
364 priv->authenticated ? 'y' : 'n',
365 devtoname(priv->minor->device),
372 SYSCTL_OUT(req, "", 1);
374 free(tempprivs, DRM_MEM_DRIVER);
378 static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS
380 struct drm_device *dev = arg1;
385 DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n");
387 if (dev->_vblank_count == NULL)
389 for (i = 0 ; i < dev->num_crtcs ; i++) {
390 DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n",
391 i, dev->vblank_refcount[i],
392 dev->_vblank_count[i],
394 dev->vblank_enabled[i],
395 dev->vblank_inmodeset[i]);
400 SYSCTL_OUT(req, "", -1);