drm_sysctl.c revision 182080
1145132Sanholt/*- 2145132Sanholt * Copyright 2003 Eric Anholt 3145132Sanholt * All Rights Reserved. 4145132Sanholt * 5145132Sanholt * Permission is hereby granted, free of charge, to any person obtaining a 6145132Sanholt * copy of this software and associated documentation files (the "Software"), 7145132Sanholt * to deal in the Software without restriction, including without limitation 8145132Sanholt * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9145132Sanholt * and/or sell copies of the Software, and to permit persons to whom the 10145132Sanholt * Software is furnished to do so, subject to the following conditions: 11145132Sanholt * 12145132Sanholt * The above copyright notice and this permission notice (including the next 13145132Sanholt * paragraph) shall be included in all copies or substantial portions of the 14145132Sanholt * Software. 15145132Sanholt * 16145132Sanholt * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17145132Sanholt * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18145132Sanholt * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19145132Sanholt * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 20145132Sanholt * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21145132Sanholt * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22145132Sanholt */ 23145132Sanholt 24152909Sanholt#include <sys/cdefs.h> 25152909Sanholt__FBSDID("$FreeBSD: head/sys/dev/drm/drm_sysctl.c 182080 2008-08-23 20:59:12Z rnoland $"); 26152909Sanholt 27182080Srnoland/** @file drm_sysctl.c 28182080Srnoland * Implementation of various sysctls for controlling DRM behavior and reporting 29182080Srnoland * debug information. 30182080Srnoland */ 31182080Srnoland 32145132Sanholt#include "dev/drm/drmP.h" 33145132Sanholt#include "dev/drm/drm.h" 34145132Sanholt 35145132Sanholt#include <sys/sysctl.h> 36145132Sanholt 37145132Sanholtstatic int drm_name_info DRM_SYSCTL_HANDLER_ARGS; 38145132Sanholtstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS; 39145132Sanholtstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS; 40145132Sanholtstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS; 41145132Sanholt 42145132Sanholtstruct drm_sysctl_list { 43145132Sanholt const char *name; 44145132Sanholt int (*f) DRM_SYSCTL_HANDLER_ARGS; 45145132Sanholt} drm_sysctl_list[] = { 46145132Sanholt {"name", drm_name_info}, 47145132Sanholt {"vm", drm_vm_info}, 48145132Sanholt {"clients", drm_clients_info}, 49145132Sanholt {"bufs", drm_bufs_info}, 50145132Sanholt}; 51145132Sanholt#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0])) 52145132Sanholt 53145132Sanholtstruct drm_sysctl_info { 54145132Sanholt struct sysctl_ctx_list ctx; 55145132Sanholt char name[2]; 56145132Sanholt}; 57145132Sanholt 58182080Srnolandint drm_sysctl_init(struct drm_device *dev) 59145132Sanholt{ 60145132Sanholt struct drm_sysctl_info *info; 61145132Sanholt struct sysctl_oid *oid; 62145132Sanholt struct sysctl_oid *top, *drioid; 63145132Sanholt int i; 64145132Sanholt 65145132Sanholt info = malloc(sizeof *info, M_DRM, M_WAITOK | M_ZERO); 66145132Sanholt if ( !info ) 67145132Sanholt return 1; 68145132Sanholt dev->sysctl = info; 69145132Sanholt 70145132Sanholt /* Add the sysctl node for DRI if it doesn't already exist */ 71145132Sanholt drioid = SYSCTL_ADD_NODE( &info->ctx, &sysctl__hw_children, OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics"); 72145132Sanholt if (!drioid) 73145132Sanholt return 1; 74145132Sanholt 75145132Sanholt /* Find the next free slot under hw.dri */ 76145132Sanholt i = 0; 77145132Sanholt SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) { 78145132Sanholt if (i <= oid->oid_arg2) 79145132Sanholt i = oid->oid_arg2 + 1; 80145132Sanholt } 81145132Sanholt if (i>9) 82145132Sanholt return 1; 83145132Sanholt 84145132Sanholt /* Add the hw.dri.x for our device */ 85145132Sanholt info->name[0] = '0' + i; 86145132Sanholt info->name[1] = 0; 87145132Sanholt top = SYSCTL_ADD_NODE( &info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL); 88145132Sanholt if (!top) 89145132Sanholt return 1; 90145132Sanholt 91145132Sanholt for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) { 92145132Sanholt oid = SYSCTL_ADD_OID(&info->ctx, 93145132Sanholt SYSCTL_CHILDREN(top), 94145132Sanholt OID_AUTO, 95145132Sanholt drm_sysctl_list[i].name, 96145132Sanholt CTLTYPE_INT | CTLFLAG_RD, 97145132Sanholt dev, 98145132Sanholt 0, 99145132Sanholt drm_sysctl_list[i].f, 100145132Sanholt "A", 101145132Sanholt NULL); 102145132Sanholt if (!oid) 103145132Sanholt return 1; 104145132Sanholt } 105145132Sanholt SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(top), OID_AUTO, "debug", 106145132Sanholt CTLFLAG_RW, &drm_debug_flag, sizeof(drm_debug_flag), 107145132Sanholt "Enable debugging output"); 108145132Sanholt 109145132Sanholt return 0; 110145132Sanholt} 111145132Sanholt 112182080Srnolandint drm_sysctl_cleanup(struct drm_device *dev) 113145132Sanholt{ 114145132Sanholt int error; 115145132Sanholt error = sysctl_ctx_free( &dev->sysctl->ctx ); 116145132Sanholt 117145132Sanholt free(dev->sysctl, M_DRM); 118145132Sanholt dev->sysctl = NULL; 119145132Sanholt 120145132Sanholt return error; 121145132Sanholt} 122145132Sanholt 123145132Sanholt#define DRM_SYSCTL_PRINT(fmt, arg...) \ 124145132Sanholtdo { \ 125145132Sanholt snprintf(buf, sizeof(buf), fmt, ##arg); \ 126145132Sanholt retcode = SYSCTL_OUT(req, buf, strlen(buf)); \ 127145132Sanholt if (retcode) \ 128145132Sanholt goto done; \ 129145132Sanholt} while (0) 130145132Sanholt 131145132Sanholtstatic int drm_name_info DRM_SYSCTL_HANDLER_ARGS 132145132Sanholt{ 133182080Srnoland struct drm_device *dev = arg1; 134145132Sanholt char buf[128]; 135145132Sanholt int retcode; 136145132Sanholt int hasunique = 0; 137145132Sanholt 138152909Sanholt DRM_SYSCTL_PRINT("%s 0x%x", dev->driver.name, dev2udev(dev->devnode)); 139145132Sanholt 140145132Sanholt DRM_LOCK(); 141145132Sanholt if (dev->unique) { 142145132Sanholt snprintf(buf, sizeof(buf), " %s", dev->unique); 143145132Sanholt hasunique = 1; 144145132Sanholt } 145145132Sanholt DRM_UNLOCK(); 146145132Sanholt 147145132Sanholt if (hasunique) 148145132Sanholt SYSCTL_OUT(req, buf, strlen(buf)); 149145132Sanholt 150145132Sanholt SYSCTL_OUT(req, "", 1); 151145132Sanholt 152145132Sanholtdone: 153145132Sanholt return retcode; 154145132Sanholt} 155145132Sanholt 156145132Sanholtstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS 157145132Sanholt{ 158182080Srnoland struct drm_device *dev = arg1; 159145132Sanholt drm_local_map_t *map, *tempmaps; 160145132Sanholt const char *types[] = { "FB", "REG", "SHM", "AGP", "SG" }; 161145132Sanholt const char *type, *yesno; 162145132Sanholt int i, mapcount; 163145132Sanholt char buf[128]; 164145132Sanholt int retcode; 165145132Sanholt 166145132Sanholt /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a 167145132Sanholt * temporary copy of all the map entries and then SYSCTL_OUT that. 168145132Sanholt */ 169145132Sanholt DRM_LOCK(); 170145132Sanholt 171145132Sanholt mapcount = 0; 172145132Sanholt TAILQ_FOREACH(map, &dev->maplist, link) 173145132Sanholt mapcount++; 174145132Sanholt 175145132Sanholt tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, M_DRM, M_NOWAIT); 176145132Sanholt if (tempmaps == NULL) { 177145132Sanholt DRM_UNLOCK(); 178145132Sanholt return ENOMEM; 179145132Sanholt } 180145132Sanholt 181145132Sanholt i = 0; 182145132Sanholt TAILQ_FOREACH(map, &dev->maplist, link) 183145132Sanholt tempmaps[i++] = *map; 184145132Sanholt 185145132Sanholt DRM_UNLOCK(); 186145132Sanholt 187145132Sanholt DRM_SYSCTL_PRINT("\nslot offset size type flags " 188145132Sanholt "address mtrr\n"); 189145132Sanholt 190145132Sanholt for (i = 0; i < mapcount; i++) { 191145132Sanholt map = &tempmaps[i]; 192145132Sanholt 193145132Sanholt if (map->type < 0 || map->type > 4) 194145132Sanholt type = "??"; 195145132Sanholt else 196145132Sanholt type = types[map->type]; 197145132Sanholt 198145132Sanholt if (!map->mtrr) 199145132Sanholt yesno = "no"; 200145132Sanholt else 201145132Sanholt yesno = "yes"; 202145132Sanholt 203145132Sanholt DRM_SYSCTL_PRINT( 204145132Sanholt "%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08lx %s\n", i, 205145132Sanholt map->offset, map->size, type, map->flags, 206145132Sanholt (unsigned long)map->handle, yesno); 207145132Sanholt } 208145132Sanholt SYSCTL_OUT(req, "", 1); 209145132Sanholt 210145132Sanholtdone: 211145132Sanholt free(tempmaps, M_DRM); 212145132Sanholt return retcode; 213145132Sanholt} 214145132Sanholt 215145132Sanholtstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS 216145132Sanholt{ 217182080Srnoland struct drm_device *dev = arg1; 218145132Sanholt drm_device_dma_t *dma = dev->dma; 219145132Sanholt drm_device_dma_t tempdma; 220145132Sanholt int *templists; 221145132Sanholt int i; 222145132Sanholt char buf[128]; 223145132Sanholt int retcode; 224145132Sanholt 225145132Sanholt /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary 226145132Sanholt * copy of the whole structure and the relevant data from buflist. 227145132Sanholt */ 228145132Sanholt DRM_LOCK(); 229145132Sanholt if (dma == NULL) { 230145132Sanholt DRM_UNLOCK(); 231145132Sanholt return 0; 232145132Sanholt } 233145132Sanholt DRM_SPINLOCK(&dev->dma_lock); 234145132Sanholt tempdma = *dma; 235145132Sanholt templists = malloc(sizeof(int) * dma->buf_count, M_DRM, M_NOWAIT); 236145132Sanholt for (i = 0; i < dma->buf_count; i++) 237145132Sanholt templists[i] = dma->buflist[i]->list; 238145132Sanholt dma = &tempdma; 239145132Sanholt DRM_SPINUNLOCK(&dev->dma_lock); 240145132Sanholt DRM_UNLOCK(); 241145132Sanholt 242145132Sanholt DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); 243145132Sanholt for (i = 0; i <= DRM_MAX_ORDER; i++) { 244145132Sanholt if (dma->bufs[i].buf_count) 245145132Sanholt DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", 246145132Sanholt i, 247145132Sanholt dma->bufs[i].buf_size, 248145132Sanholt dma->bufs[i].buf_count, 249145132Sanholt atomic_read(&dma->bufs[i] 250145132Sanholt .freelist.count), 251145132Sanholt dma->bufs[i].seg_count, 252145132Sanholt dma->bufs[i].seg_count 253145132Sanholt *(1 << dma->bufs[i].page_order), 254145132Sanholt (dma->bufs[i].seg_count 255145132Sanholt * (1 << dma->bufs[i].page_order)) 256145132Sanholt * PAGE_SIZE / 1024); 257145132Sanholt } 258145132Sanholt DRM_SYSCTL_PRINT("\n"); 259145132Sanholt for (i = 0; i < dma->buf_count; i++) { 260145132Sanholt if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); 261145132Sanholt DRM_SYSCTL_PRINT(" %d", templists[i]); 262145132Sanholt } 263145132Sanholt DRM_SYSCTL_PRINT("\n"); 264145132Sanholt 265145132Sanholt SYSCTL_OUT(req, "", 1); 266145132Sanholtdone: 267145132Sanholt free(templists, M_DRM); 268145132Sanholt return retcode; 269145132Sanholt} 270145132Sanholt 271145132Sanholtstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS 272145132Sanholt{ 273182080Srnoland struct drm_device *dev = arg1; 274145132Sanholt drm_file_t *priv, *tempprivs; 275145132Sanholt char buf[128]; 276145132Sanholt int retcode; 277145132Sanholt int privcount, i; 278145132Sanholt 279145132Sanholt DRM_LOCK(); 280145132Sanholt 281145132Sanholt privcount = 0; 282145132Sanholt TAILQ_FOREACH(priv, &dev->files, link) 283145132Sanholt privcount++; 284145132Sanholt 285145132Sanholt tempprivs = malloc(sizeof(drm_file_t) * privcount, M_DRM, M_NOWAIT); 286145132Sanholt if (tempprivs == NULL) { 287145132Sanholt DRM_UNLOCK(); 288145132Sanholt return ENOMEM; 289145132Sanholt } 290145132Sanholt i = 0; 291145132Sanholt TAILQ_FOREACH(priv, &dev->files, link) 292145132Sanholt tempprivs[i++] = *priv; 293145132Sanholt 294145132Sanholt DRM_UNLOCK(); 295145132Sanholt 296145132Sanholt DRM_SYSCTL_PRINT("\na dev pid uid magic ioctls\n"); 297145132Sanholt for (i = 0; i < privcount; i++) { 298145132Sanholt priv = &tempprivs[i]; 299145132Sanholt DRM_SYSCTL_PRINT("%c %3d %5d %5d %10u %10lu\n", 300145132Sanholt priv->authenticated ? 'y' : 'n', 301145132Sanholt priv->minor, 302145132Sanholt priv->pid, 303145132Sanholt priv->uid, 304145132Sanholt priv->magic, 305145132Sanholt priv->ioctl_count); 306145132Sanholt } 307145132Sanholt 308145132Sanholt SYSCTL_OUT(req, "", 1); 309145132Sanholtdone: 310145132Sanholt free(tempprivs, M_DRM); 311145132Sanholt return retcode; 312145132Sanholt} 313