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
29 #include "dev/drm/drmP.h"
30 #include "dev/drm/drm.h"
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;
38 static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS;
40 struct drm_sysctl_list {
42 int (*f) DRM_SYSCTL_HANDLER_ARGS;
43 } drm_sysctl_list[] = {
44 {"name", drm_name_info},
46 {"clients", drm_clients_info},
47 {"bufs", drm_bufs_info},
48 {"vblank", drm_vblank_info},
50 #define DRM_SYSCTL_ENTRIES NELEM(drm_sysctl_list)
52 struct drm_sysctl_info {
53 struct sysctl_ctx_list ctx;
57 int drm_sysctl_init(struct drm_device *dev)
59 struct drm_sysctl_info *info;
60 struct sysctl_oid *oid;
61 struct sysctl_oid *top, *drioid;
64 info = malloc(sizeof *info, DRM_MEM_DRIVER, M_WAITOK | M_ZERO);
69 /* Add the sysctl node for DRI if it doesn't already exist */
70 drioid = SYSCTL_ADD_NODE( &info->ctx, &sysctl__hw_children, OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics");
74 /* Find the next free slot under hw.dri */
76 SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) {
77 if (i <= oid->oid_arg2)
78 i = oid->oid_arg2 + 1;
83 /* Add the hw.dri.x for our device */
84 info->name[0] = '0' + i;
86 top = SYSCTL_ADD_NODE( &info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL);
90 for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) {
91 oid = SYSCTL_ADD_OID(&info->ctx,
94 drm_sysctl_list[i].name,
95 CTLTYPE_STRING | CTLFLAG_RD,
104 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(top), OID_AUTO, "debug",
105 CTLFLAG_RW, &drm_debug_flag, sizeof(drm_debug_flag),
106 "Enable debugging output");
111 int drm_sysctl_cleanup(struct drm_device *dev)
114 error = sysctl_ctx_free( &dev->sysctl->ctx );
116 free(dev->sysctl, DRM_MEM_DRIVER);
122 #define DRM_SYSCTL_PRINT(fmt, arg...) \
124 snprintf(buf, sizeof(buf), fmt, ##arg); \
125 retcode = SYSCTL_OUT(req, buf, strlen(buf)); \
130 static int drm_name_info DRM_SYSCTL_HANDLER_ARGS
132 struct drm_device *dev = arg1;
137 DRM_SYSCTL_PRINT("%s 0x%x", dev->driver->name, dev2udev(dev->devnode));
141 snprintf(buf, sizeof(buf), " %s", dev->unique);
147 SYSCTL_OUT(req, buf, strlen(buf));
149 SYSCTL_OUT(req, "", 1);
155 static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS
157 struct drm_device *dev = arg1;
158 drm_local_map_t *map, *tempmaps;
159 const char *types[] = { "FB", "REG", "SHM", "AGP", "SG" };
160 const char *type, *yesno;
165 /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a
166 * temporary copy of all the map entries and then SYSCTL_OUT that.
171 TAILQ_FOREACH(map, &dev->maplist, link)
174 tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, DRM_MEM_DRIVER,
176 if (tempmaps == NULL) {
182 TAILQ_FOREACH(map, &dev->maplist, link)
183 tempmaps[i++] = *map;
187 DRM_SYSCTL_PRINT("\nslot offset size "
188 "type flags address handle mtrr\n");
190 for (i = 0; i < mapcount; i++) {
193 if (map->type < 0 || map->type > 4)
196 type = types[map->type];
204 "%4d 0x%016lx 0x%08lx %4.4s 0x%02x 0x%016lx %6d %s\n",
205 i, map->offset, map->size, type, map->flags,
206 (unsigned long)map->virtual,
207 (unsigned int)((unsigned long)map->handle >>
208 DRM_MAP_HANDLE_SHIFT), yesno);
210 SYSCTL_OUT(req, "", 1);
213 free(tempmaps, DRM_MEM_DRIVER);
217 static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS
219 struct drm_device *dev = arg1;
220 drm_device_dma_t *dma = dev->dma;
221 drm_device_dma_t tempdma;
227 /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary
228 * copy of the whole structure and the relevant data from buflist.
235 DRM_SPINLOCK(&dev->dma_lock);
237 templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER,
239 for (i = 0; i < dma->buf_count; i++)
240 templists[i] = dma->buflist[i]->list;
242 DRM_SPINUNLOCK(&dev->dma_lock);
245 DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n");
246 for (i = 0; i <= DRM_MAX_ORDER; i++) {
247 if (dma->bufs[i].buf_count)
248 DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n",
250 dma->bufs[i].buf_size,
251 dma->bufs[i].buf_count,
252 atomic_read(&dma->bufs[i]
254 dma->bufs[i].seg_count,
255 dma->bufs[i].seg_count
256 *(1 << dma->bufs[i].page_order),
257 (dma->bufs[i].seg_count
258 * (1 << dma->bufs[i].page_order))
261 DRM_SYSCTL_PRINT("\n");
262 for (i = 0; i < dma->buf_count; i++) {
263 if (i && !(i%32)) DRM_SYSCTL_PRINT("\n");
264 DRM_SYSCTL_PRINT(" %d", templists[i]);
266 DRM_SYSCTL_PRINT("\n");
268 SYSCTL_OUT(req, "", 1);
270 free(templists, DRM_MEM_DRIVER);
274 static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS
276 struct drm_device *dev = arg1;
277 struct drm_file *priv, *tempprivs;
285 TAILQ_FOREACH(priv, &dev->files, link)
288 tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER,
290 if (tempprivs == NULL) {
295 TAILQ_FOREACH(priv, &dev->files, link)
296 tempprivs[i++] = *priv;
300 DRM_SYSCTL_PRINT("\na dev pid uid magic ioctls\n");
301 for (i = 0; i < privcount; i++) {
302 priv = &tempprivs[i];
303 DRM_SYSCTL_PRINT("%c %3d %5d %5d %10u %10lu\n",
304 priv->authenticated ? 'y' : 'n',
312 SYSCTL_OUT(req, "", 1);
314 free(tempprivs, DRM_MEM_DRIVER);
318 static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS
320 struct drm_device *dev = arg1;
325 DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n");
326 for(i = 0 ; i < dev->num_crtcs ; i++) {
327 DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n",
328 i, atomic_load_acq_32(&dev->vblank[i].refcount),
329 atomic_load_acq_32(&dev->vblank[i].count),
330 atomic_load_acq_32(&dev->vblank[i].last),
331 atomic_load_acq_int(&dev->vblank[i].enabled),
332 atomic_load_acq_int(&dev->vblank[i].inmodeset));
335 SYSCTL_OUT(req, "", -1);