/*- * Copyright 2003 Eric Anholt * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * $FreeBSD: src/sys/dev/drm2/drm_sysctl.c,v 1.1 2012/05/22 11:07:44 kib Exp $ */ /** @file drm_sysctl.c * Implementation of various sysctls for controlling DRM behavior and reporting * debug information. */ #include #include #include #include static int drm_name_info DRM_SYSCTL_HANDLER_ARGS; static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS; static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS; static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS; static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS; struct drm_sysctl_list { const char *name; int (*f) DRM_SYSCTL_HANDLER_ARGS; } drm_sysctl_list[] = { {"name", drm_name_info}, {"vm", drm_vm_info}, {"clients", drm_clients_info}, {"bufs", drm_bufs_info}, {"vblank", drm_vblank_info}, }; #define DRM_SYSCTL_ENTRIES NELEM(drm_sysctl_list) int drm_sysctl_init(struct drm_device *dev) { struct drm_sysctl_info *info; struct sysctl_oid *oid; struct sysctl_oid *top, *drioid; int i; info = kmalloc(sizeof *info, M_DRM, M_WAITOK | M_ZERO); if ( !info ) return 1; dev->sysctl = info; /* Add the sysctl node for DRI if it doesn't already exist */ drioid = SYSCTL_ADD_NODE(&info->ctx, &sysctl__hw_children, OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics"); if (!drioid) return 1; /* Find the next free slot under hw.dri */ i = 0; SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) { if (i <= oid->oid_arg2) i = oid->oid_arg2 + 1; } if (i>9) return 1; dev->sysctl_node_idx = i; /* Add the hw.dri.x for our device */ info->name[0] = '0' + i; info->name[1] = 0; top = SYSCTL_ADD_NODE(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL); if (!top) return 1; for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) { oid = SYSCTL_ADD_OID(&info->ctx, SYSCTL_CHILDREN(top), OID_AUTO, drm_sysctl_list[i].name, CTLTYPE_STRING | CTLFLAG_RD, dev, 0, drm_sysctl_list[i].f, "A", NULL); if (!oid) return 1; } SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "debug", CTLFLAG_RW, &drm_debug, sizeof(drm_debug), "Enable debugging output"); SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "notyet", CTLFLAG_RW, &drm_notyet_flag, sizeof(drm_debug), "Enable notyet reminders"); if (dev->driver->sysctl_init != NULL) dev->driver->sysctl_init(dev, &info->ctx, top); SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "vblank_offdelay", CTLFLAG_RW, &drm_vblank_offdelay, sizeof(drm_vblank_offdelay), ""); SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "timestamp_precision", CTLFLAG_RW, &drm_timestamp_precision, sizeof(drm_timestamp_precision), ""); return (0); } int drm_sysctl_cleanup(struct drm_device *dev) { int error; error = sysctl_ctx_free(&dev->sysctl->ctx); drm_free(dev->sysctl, M_DRM); dev->sysctl = NULL; if (dev->driver->sysctl_cleanup != NULL) dev->driver->sysctl_cleanup(dev); return (error); } #define DRM_SYSCTL_PRINT(fmt, arg...) \ do { \ ksnprintf(buf, sizeof(buf), fmt, ##arg); \ retcode = SYSCTL_OUT(req, buf, strlen(buf)); \ if (retcode) \ goto done; \ } while (0) static int drm_name_info DRM_SYSCTL_HANDLER_ARGS { struct drm_device *dev = arg1; char buf[128]; int retcode; int hasunique = 0; DRM_SYSCTL_PRINT("%s 0x%x", dev->driver->name, dev2udev(dev->devnode)); DRM_LOCK(dev); if (dev->unique) { ksnprintf(buf, sizeof(buf), " %s", dev->unique); hasunique = 1; } DRM_UNLOCK(dev); if (hasunique) SYSCTL_OUT(req, buf, strlen(buf)); SYSCTL_OUT(req, "", 1); done: return retcode; } /** * Called when "/proc/dri/.../vm" is read. * * Prints information about all mappings in drm_device::maplist. */ static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS { char buf[128]; int retcode; struct drm_device *dev = arg1; struct drm_local_map *map; struct drm_map_list *r_list; /* Hardcoded from _DRM_FRAME_BUFFER, _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and _DRM_SCATTER_GATHER and _DRM_CONSISTENT */ const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" }; const char *type; int i; DRM_LOCK(dev); DRM_SYSCTL_PRINT("\nslot offset size " "type flags address handle mtrr\n"); i = 0; list_for_each_entry(r_list, &dev->maplist, head) { map = r_list->map; if (!map) continue; if (map->type < 0 || map->type > 5) type = "??"; else type = types[map->type]; DRM_SYSCTL_PRINT("%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ", i, (unsigned long long)map->offset, map->size, type, map->flags, (unsigned long) r_list->user_token); if (map->mtrr < 0) DRM_SYSCTL_PRINT("none\n"); else DRM_SYSCTL_PRINT("%4d\n", map->mtrr); i++; } SYSCTL_OUT(req, "", 1); DRM_UNLOCK(dev); done: return 0; } static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS { struct drm_device *dev = arg1; drm_device_dma_t *dma = dev->dma; drm_device_dma_t tempdma; int *templists; int i; char buf[128]; int retcode; /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary * copy of the whole structure and the relevant data from buflist. */ DRM_LOCK(dev); if (dma == NULL) { DRM_UNLOCK(dev); return 0; } spin_lock(&dev->dma_lock); tempdma = *dma; templists = kmalloc(sizeof(int) * dma->buf_count, M_DRM, M_WAITOK | M_NULLOK); for (i = 0; i < dma->buf_count; i++) templists[i] = dma->buflist[i]->list; dma = &tempdma; spin_unlock(&dev->dma_lock); DRM_UNLOCK(dev); DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); for (i = 0; i <= DRM_MAX_ORDER; i++) { if (dma->bufs[i].buf_count) DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", i, dma->bufs[i].buf_size, dma->bufs[i].buf_count, atomic_read(&dma->bufs[i] .freelist.count), dma->bufs[i].seg_count, dma->bufs[i].seg_count *(1 << dma->bufs[i].page_order), (dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order)) * (int)PAGE_SIZE / 1024); } DRM_SYSCTL_PRINT("\n"); for (i = 0; i < dma->buf_count; i++) { if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); DRM_SYSCTL_PRINT(" %d", templists[i]); } DRM_SYSCTL_PRINT("\n"); SYSCTL_OUT(req, "", 1); done: drm_free(templists, M_DRM); return retcode; } static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS { struct drm_device *dev = arg1; struct drm_file *priv, *tempprivs; char buf[128]; int retcode; int privcount, i; DRM_LOCK(dev); privcount = 0; list_for_each_entry(priv, &dev->filelist, lhead) privcount++; tempprivs = kmalloc(sizeof(struct drm_file) * privcount, M_DRM, M_WAITOK | M_NULLOK); if (tempprivs == NULL) { DRM_UNLOCK(dev); return ENOMEM; } i = 0; list_for_each_entry(priv, &dev->filelist, lhead) tempprivs[i++] = *priv; DRM_UNLOCK(dev); DRM_SYSCTL_PRINT( "\na dev pid uid magic ioctls\n"); for (i = 0; i < privcount; i++) { priv = &tempprivs[i]; DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n", priv->authenticated ? 'y' : 'n', devtoname(priv->minor->dev->devnode), priv->pid, priv->uid, priv->magic, priv->ioctl_count); } SYSCTL_OUT(req, "", 1); done: drm_free(tempprivs, M_DRM); return retcode; } static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS { struct drm_device *dev = arg1; char buf[128]; int retcode; int i; DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n"); DRM_LOCK(dev); if (dev->_vblank_count == NULL) goto done; for (i = 0 ; i < dev->num_crtcs ; i++) { DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n", i, dev->vblank_refcount[i].counter, dev->_vblank_count[i].counter, dev->last_vblank[i], dev->vblank_enabled[i], dev->vblank_inmodeset[i]); } done: DRM_UNLOCK(dev); SYSCTL_OUT(req, "", -1); return retcode; }