1207753Smm/*- 2207753Smm * Copyright 2003 Eric Anholt 3207753Smm * All Rights Reserved. 4207753Smm * 5207753Smm * Permission is hereby granted, free of charge, to any person obtaining a 6207753Smm * copy of this software and associated documentation files (the "Software"), 7207753Smm * to deal in the Software without restriction, including without limitation 8207753Smm * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9207753Smm * and/or sell copies of the Software, and to permit persons to whom the 10207753Smm * Software is furnished to do so, subject to the following conditions: 11207753Smm * 12207753Smm * The above copyright notice and this permission notice (including the next 13207753Smm * paragraph) shall be included in all copies or substantial portions of the 14207753Smm * Software. 15207753Smm * 16207753Smm * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17207753Smm * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18207753Smm * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19207753Smm * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 20207753Smm * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21207753Smm * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22219001Smm */ 23223935Smm 24207753Smm#include <sys/cdefs.h> 25207753Smm__FBSDID("$FreeBSD$"); 26207753Smm 27223935Smm/** @file drm_sysctl.c 28207753Smm * Implementation of various sysctls for controlling DRM behavior and reporting 29207753Smm * debug information. 30207753Smm */ 31207753Smm 32207753Smm#include "dev/drm/drmP.h" 33207753Smm#include "dev/drm/drm.h" 34207753Smm 35207753Smm#include <sys/sysctl.h> 36207753Smm 37207753Smmstatic int drm_name_info DRM_SYSCTL_HANDLER_ARGS; 38207753Smmstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS; 39207753Smmstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS; 40207753Smmstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS; 41207753Smmstatic int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS; 42207753Smm 43207753Smmstruct drm_sysctl_list { 44207753Smm const char *name; 45207753Smm int (*f) DRM_SYSCTL_HANDLER_ARGS; 46207753Smm} drm_sysctl_list[] = { 47207753Smm {"name", drm_name_info}, 48207753Smm {"vm", drm_vm_info}, 49207753Smm {"clients", drm_clients_info}, 50207753Smm {"bufs", drm_bufs_info}, 51207753Smm {"vblank", drm_vblank_info}, 52207753Smm}; 53207753Smm#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0])) 54207753Smm 55207753Smmstruct drm_sysctl_info { 56207753Smm struct sysctl_ctx_list ctx; 57207753Smm char name[2]; 58207753Smm}; 59207753Smm 60207753Smmint drm_sysctl_init(struct drm_device *dev) 61207753Smm{ 62207753Smm struct drm_sysctl_info *info; 63207753Smm struct sysctl_oid *oid; 64207753Smm struct sysctl_oid *top, *drioid; 65207753Smm int i; 66207753Smm 67207753Smm info = malloc(sizeof *info, DRM_MEM_DRIVER, M_WAITOK | M_ZERO); 68207753Smm if ( !info ) 69207753Smm return 1; 70207753Smm dev->sysctl = info; 71207753Smm 72207753Smm /* Add the sysctl node for DRI if it doesn't already exist */ 73207753Smm drioid = SYSCTL_ADD_NODE( &info->ctx, &sysctl__hw_children, OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics"); 74207753Smm if (!drioid) 75207753Smm return 1; 76207753Smm 77207753Smm /* Find the next free slot under hw.dri */ 78207753Smm i = 0; 79207753Smm SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) { 80207753Smm if (i <= oid->oid_arg2) 81207753Smm i = oid->oid_arg2 + 1; 82207753Smm } 83207753Smm if (i>9) 84207753Smm return 1; 85207753Smm 86207753Smm /* Add the hw.dri.x for our device */ 87207753Smm info->name[0] = '0' + i; 88207753Smm info->name[1] = 0; 89207753Smm top = SYSCTL_ADD_NODE( &info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL); 90207753Smm if (!top) 91207753Smm return 1; 92207753Smm 93207753Smm for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) { 94207753Smm oid = SYSCTL_ADD_OID(&info->ctx, 95207753Smm SYSCTL_CHILDREN(top), 96207753Smm OID_AUTO, 97207753Smm drm_sysctl_list[i].name, 98207753Smm CTLTYPE_STRING | CTLFLAG_RD, 99207753Smm dev, 100207753Smm 0, 101207753Smm drm_sysctl_list[i].f, 102207753Smm "A", 103207753Smm NULL); 104207753Smm if (!oid) 105223935Smm return 1; 106207753Smm } 107207753Smm SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(top), OID_AUTO, "debug", 108207753Smm CTLFLAG_RW, &drm_debug_flag, sizeof(drm_debug_flag), 109207753Smm "Enable debugging output"); 110207753Smm 111207753Smm return 0; 112207753Smm} 113207753Smm 114207753Smmint drm_sysctl_cleanup(struct drm_device *dev) 115207753Smm{ 116207753Smm int error; 117207753Smm error = sysctl_ctx_free( &dev->sysctl->ctx ); 118207753Smm 119207753Smm free(dev->sysctl, DRM_MEM_DRIVER); 120207753Smm dev->sysctl = NULL; 121207753Smm 122207753Smm return error; 123207753Smm} 124 125#define DRM_SYSCTL_PRINT(fmt, arg...) \ 126do { \ 127 snprintf(buf, sizeof(buf), fmt, ##arg); \ 128 retcode = SYSCTL_OUT(req, buf, strlen(buf)); \ 129 if (retcode) \ 130 goto done; \ 131} while (0) 132 133static int drm_name_info DRM_SYSCTL_HANDLER_ARGS 134{ 135 struct drm_device *dev = arg1; 136 char buf[128]; 137 int retcode; 138 int hasunique = 0; 139 140 DRM_SYSCTL_PRINT("%s 0x%x", dev->driver->name, dev2udev(dev->devnode)); 141 142 DRM_LOCK(); 143 if (dev->unique) { 144 snprintf(buf, sizeof(buf), " %s", dev->unique); 145 hasunique = 1; 146 } 147 DRM_UNLOCK(); 148 149 if (hasunique) 150 SYSCTL_OUT(req, buf, strlen(buf)); 151 152 SYSCTL_OUT(req, "", 1); 153 154done: 155 return retcode; 156} 157 158static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS 159{ 160 struct drm_device *dev = arg1; 161 drm_local_map_t *map, *tempmaps; 162 const char *types[] = { "FB", "REG", "SHM", "AGP", "SG" }; 163 const char *type, *yesno; 164 int i, mapcount; 165 char buf[128]; 166 int retcode; 167 168 /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a 169 * temporary copy of all the map entries and then SYSCTL_OUT that. 170 */ 171 DRM_LOCK(); 172 173 mapcount = 0; 174 TAILQ_FOREACH(map, &dev->maplist, link) 175 mapcount++; 176 177 tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, DRM_MEM_DRIVER, 178 M_NOWAIT); 179 if (tempmaps == NULL) { 180 DRM_UNLOCK(); 181 return ENOMEM; 182 } 183 184 i = 0; 185 TAILQ_FOREACH(map, &dev->maplist, link) 186 tempmaps[i++] = *map; 187 188 DRM_UNLOCK(); 189 190 DRM_SYSCTL_PRINT("\nslot offset size " 191 "type flags address handle mtrr\n"); 192 193 for (i = 0; i < mapcount; i++) { 194 map = &tempmaps[i]; 195 196 if (map->type < 0 || map->type > 4) 197 type = "??"; 198 else 199 type = types[map->type]; 200 201 if (!map->mtrr) 202 yesno = "no"; 203 else 204 yesno = "yes"; 205 206 DRM_SYSCTL_PRINT( 207 "%4d 0x%016lx 0x%08lx %4.4s 0x%02x 0x%016lx %6d %s\n", 208 i, map->offset, map->size, type, map->flags, 209 (unsigned long)map->virtual, 210 (unsigned int)((unsigned long)map->handle >> 211 DRM_MAP_HANDLE_SHIFT), yesno); 212 } 213 SYSCTL_OUT(req, "", 1); 214 215done: 216 free(tempmaps, DRM_MEM_DRIVER); 217 return retcode; 218} 219 220static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS 221{ 222 struct drm_device *dev = arg1; 223 drm_device_dma_t *dma = dev->dma; 224 drm_device_dma_t tempdma; 225 int *templists; 226 int i; 227 char buf[128]; 228 int retcode; 229 230 /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary 231 * copy of the whole structure and the relevant data from buflist. 232 */ 233 DRM_LOCK(); 234 if (dma == NULL) { 235 DRM_UNLOCK(); 236 return 0; 237 } 238 DRM_SPINLOCK(&dev->dma_lock); 239 tempdma = *dma; 240 templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER, 241 M_NOWAIT); 242 for (i = 0; i < dma->buf_count; i++) 243 templists[i] = dma->buflist[i]->list; 244 dma = &tempdma; 245 DRM_SPINUNLOCK(&dev->dma_lock); 246 DRM_UNLOCK(); 247 248 DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); 249 for (i = 0; i <= DRM_MAX_ORDER; i++) { 250 if (dma->bufs[i].buf_count) 251 DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", 252 i, 253 dma->bufs[i].buf_size, 254 dma->bufs[i].buf_count, 255 atomic_read(&dma->bufs[i] 256 .freelist.count), 257 dma->bufs[i].seg_count, 258 dma->bufs[i].seg_count 259 *(1 << dma->bufs[i].page_order), 260 (dma->bufs[i].seg_count 261 * (1 << dma->bufs[i].page_order)) 262 * (int)PAGE_SIZE / 1024); 263 } 264 DRM_SYSCTL_PRINT("\n"); 265 for (i = 0; i < dma->buf_count; i++) { 266 if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); 267 DRM_SYSCTL_PRINT(" %d", templists[i]); 268 } 269 DRM_SYSCTL_PRINT("\n"); 270 271 SYSCTL_OUT(req, "", 1); 272done: 273 free(templists, DRM_MEM_DRIVER); 274 return retcode; 275} 276 277static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS 278{ 279 struct drm_device *dev = arg1; 280 struct drm_file *priv, *tempprivs; 281 char buf[128]; 282 int retcode; 283 int privcount, i; 284 285 DRM_LOCK(); 286 287 privcount = 0; 288 TAILQ_FOREACH(priv, &dev->files, link) 289 privcount++; 290 291 tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER, 292 M_NOWAIT); 293 if (tempprivs == NULL) { 294 DRM_UNLOCK(); 295 return ENOMEM; 296 } 297 i = 0; 298 TAILQ_FOREACH(priv, &dev->files, link) 299 tempprivs[i++] = *priv; 300 301 DRM_UNLOCK(); 302 303 DRM_SYSCTL_PRINT( 304 "\na dev pid uid magic ioctls\n"); 305 for (i = 0; i < privcount; i++) { 306 priv = &tempprivs[i]; 307 DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n", 308 priv->authenticated ? 'y' : 'n', 309 devtoname(priv->dev->devnode), 310 priv->pid, 311 priv->uid, 312 priv->magic, 313 priv->ioctl_count); 314 } 315 316 SYSCTL_OUT(req, "", 1); 317done: 318 free(tempprivs, DRM_MEM_DRIVER); 319 return retcode; 320} 321 322static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS 323{ 324 struct drm_device *dev = arg1; 325 char buf[128]; 326 int retcode; 327 int i; 328 329 DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n"); 330 for(i = 0 ; i < dev->num_crtcs ; i++) { 331 DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n", 332 i, atomic_load_acq_32(&dev->vblank[i].refcount), 333 atomic_load_acq_32(&dev->vblank[i].count), 334 atomic_load_acq_32(&dev->vblank[i].last), 335 atomic_load_acq_int(&dev->vblank[i].enabled), 336 atomic_load_acq_int(&dev->vblank[i].inmodeset)); 337 } 338 339 SYSCTL_OUT(req, "", -1); 340done: 341 return retcode; 342} 343