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.
23 * $FreeBSD: src/sys/dev/drm2/drm_sysctl.c,v 1.1 2012/05/22 11:07:44 kib Exp $
26 /** @file drm_sysctl.c
27 * Implementation of various sysctls for controlling DRM behavior and reporting
32 #include <sys/sysctl.h>
33 #include <sys/types.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;
42 struct drm_sysctl_list {
44 int (*f) DRM_SYSCTL_HANDLER_ARGS;
45 } drm_sysctl_list[] = {
46 {"name", drm_name_info},
48 {"clients", drm_clients_info},
49 {"bufs", drm_bufs_info},
51 #define DRM_SYSCTL_ENTRIES NELEM(drm_sysctl_list)
53 int drm_sysctl_init(struct drm_device *dev)
55 struct drm_sysctl_info *info;
56 struct sysctl_oid *oid;
57 struct sysctl_oid *top, *drioid;
60 info = kmalloc(sizeof *info, M_DRM, M_WAITOK | M_ZERO);
65 /* Add the sysctl node for DRI if it doesn't already exist */
66 drioid = SYSCTL_ADD_NODE(&info->ctx, &sysctl__hw_children, OID_AUTO,
67 "dri", CTLFLAG_RW, NULL, "DRI Graphics");
71 /* Find the next free slot under hw.dri */
73 SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) {
74 if (i <= oid->oid_arg2)
75 i = oid->oid_arg2 + 1;
80 dev->sysctl_node_idx = i;
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),
85 OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL);
89 for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) {
90 oid = SYSCTL_ADD_OID(&info->ctx,
93 drm_sysctl_list[i].name,
94 CTLTYPE_STRING | CTLFLAG_RD,
103 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "debug",
104 CTLFLAG_RW, &drm_debug, sizeof(drm_debug),
105 "Enable debugging output");
106 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "notyet",
107 CTLFLAG_RW, &drm_notyet_flag, sizeof(drm_debug),
108 "Enable notyet reminders");
110 if (dev->driver->sysctl_init != NULL)
111 dev->driver->sysctl_init(dev, &info->ctx, top);
113 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO,
114 "vblank_offdelay", CTLFLAG_RW, &drm_vblank_offdelay,
115 sizeof(drm_vblank_offdelay),
117 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO,
118 "timestamp_precision", CTLFLAG_RW, &drm_timestamp_precision,
119 sizeof(drm_timestamp_precision),
125 int drm_sysctl_cleanup(struct drm_device *dev)
129 error = sysctl_ctx_free(&dev->sysctl->ctx);
130 drm_free(dev->sysctl, M_DRM);
132 if (dev->driver->sysctl_cleanup != NULL)
133 dev->driver->sysctl_cleanup(dev);
138 #define DRM_SYSCTL_PRINT(fmt, arg...) \
140 ksnprintf(buf, sizeof(buf), fmt, ##arg); \
141 retcode = SYSCTL_OUT(req, buf, strlen(buf)); \
146 static int drm_name_info DRM_SYSCTL_HANDLER_ARGS
148 struct drm_device *dev = arg1;
153 DRM_SYSCTL_PRINT("%s 0x%x", dev->driver->name, dev2udev(dev->devnode));
157 ksnprintf(buf, sizeof(buf), " %s", dev->unique);
163 SYSCTL_OUT(req, buf, strlen(buf));
165 SYSCTL_OUT(req, "", 1);
172 * Called when "/proc/dri/.../vm" is read.
174 * Prints information about all mappings in drm_device::maplist.
176 static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS
180 struct drm_device *dev = arg1;
181 struct drm_local_map *map;
182 struct drm_map_list *r_list;
184 /* Hardcoded from _DRM_FRAME_BUFFER,
185 _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
186 _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
187 const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
192 DRM_SYSCTL_PRINT("\nslot offset size "
193 "type flags address handle mtrr\n");
195 list_for_each_entry(r_list, &dev->maplist, head) {
199 if (map->type < 0 || map->type > 5)
202 type = types[map->type];
204 DRM_SYSCTL_PRINT("%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
206 (unsigned long long)map->offset,
207 map->size, type, map->flags,
208 (unsigned long) r_list->user_token);
210 DRM_SYSCTL_PRINT("none\n");
212 DRM_SYSCTL_PRINT("%4d\n", map->mtrr);
216 SYSCTL_OUT(req, "", 1);
223 static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS
225 struct drm_device *dev = arg1;
226 drm_device_dma_t *dma = dev->dma;
227 drm_device_dma_t tempdma;
233 /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary
234 * copy of the whole structure and the relevant data from buflist.
241 spin_lock(&dev->dma_lock);
243 templists = kmalloc(sizeof(int) * dma->buf_count, M_DRM,
244 M_WAITOK | M_NULLOK);
245 for (i = 0; i < dma->buf_count; i++)
246 templists[i] = dma->buflist[i]->list;
248 spin_unlock(&dev->dma_lock);
251 DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n");
252 for (i = 0; i <= DRM_MAX_ORDER; i++) {
253 if (dma->bufs[i].buf_count)
254 DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n",
256 dma->bufs[i].buf_size,
257 dma->bufs[i].buf_count,
258 atomic_read(&dma->bufs[i]
260 dma->bufs[i].seg_count,
261 dma->bufs[i].seg_count
262 *(1 << dma->bufs[i].page_order),
263 (dma->bufs[i].seg_count
264 * (1 << dma->bufs[i].page_order))
265 * (int)PAGE_SIZE / 1024);
267 DRM_SYSCTL_PRINT("\n");
268 for (i = 0; i < dma->buf_count; i++) {
269 if (i && !(i%32)) DRM_SYSCTL_PRINT("\n");
270 DRM_SYSCTL_PRINT(" %d", templists[i]);
272 DRM_SYSCTL_PRINT("\n");
274 SYSCTL_OUT(req, "", 1);
276 drm_free(templists, M_DRM);
280 static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS
282 struct drm_device *dev = arg1;
283 struct drm_file *priv, *tempprivs;
291 list_for_each_entry(priv, &dev->filelist, lhead)
294 tempprivs = kmalloc(sizeof(struct drm_file) * privcount, M_DRM,
295 M_WAITOK | M_NULLOK);
296 if (tempprivs == NULL) {
301 list_for_each_entry(priv, &dev->filelist, lhead)
302 tempprivs[i++] = *priv;
307 "\na dev pid uid magic ioctls\n");
308 for (i = 0; i < privcount; i++) {
309 priv = &tempprivs[i];
310 DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n",
311 priv->authenticated ? 'y' : 'n',
312 devtoname(priv->dev->devnode),
319 SYSCTL_OUT(req, "", 1);
321 drm_free(tempprivs, M_DRM);