Current Path : /sys/dev/drm2/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/drm2/drm_ioctl.c |
/*- * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * 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 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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. * * Authors: * Rickard E. (Rik) Faith <faith@valinux.com> * Gareth Hughes <gareth@valinux.com> * */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/dev/drm2/drm_ioctl.c 235783 2012-05-22 11:07:44Z kib $"); /** @file drm_ioctl.c * Varios minor DRM ioctls not applicable to other files, such as versioning * information and reporting DRM information to userland. */ #include <dev/drm2/drmP.h> /* * Beginning in revision 1.1 of the DRM interface, getunique will return * a unique in the form pci:oooo:bb:dd.f (o=domain, b=bus, d=device, f=function) * before setunique has been called. The format for the bus-specific part of * the unique is not defined for any other bus. */ int drm_getunique(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_unique *u = data; if (u->unique_len >= dev->unique_len) { if (DRM_COPY_TO_USER(u->unique, dev->unique, dev->unique_len)) return EFAULT; } u->unique_len = dev->unique_len; return 0; } /* Deprecated in DRM version 1.1, and will return EBUSY when setversion has * requested version 1.1 or greater. */ int drm_setunique(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_unique *u = data; int domain, bus, slot, func, ret; char *busid; /* Check and copy in the submitted Bus ID */ if (!u->unique_len || u->unique_len > 1024) return EINVAL; busid = malloc(u->unique_len + 1, DRM_MEM_DRIVER, M_WAITOK); if (busid == NULL) return ENOMEM; if (DRM_COPY_FROM_USER(busid, u->unique, u->unique_len)) { free(busid, DRM_MEM_DRIVER); return EFAULT; } busid[u->unique_len] = '\0'; /* Return error if the busid submitted doesn't match the device's actual * busid. */ ret = sscanf(busid, "PCI:%d:%d:%d", &bus, &slot, &func); if (ret != 3) { free(busid, DRM_MEM_DRIVER); return EINVAL; } domain = bus >> 8; bus &= 0xff; if ((domain != dev->pci_domain) || (bus != dev->pci_bus) || (slot != dev->pci_slot) || (func != dev->pci_func)) { free(busid, DRM_MEM_DRIVER); return EINVAL; } /* Actually set the device's busid now. */ DRM_LOCK(dev); if (dev->unique_len || dev->unique) { DRM_UNLOCK(dev); return EBUSY; } dev->unique_len = u->unique_len; dev->unique = busid; DRM_UNLOCK(dev); return 0; } static int drm_set_busid(struct drm_device *dev) { DRM_LOCK(dev); if (dev->unique != NULL) { DRM_UNLOCK(dev); return EBUSY; } dev->unique_len = 20; dev->unique = malloc(dev->unique_len + 1, DRM_MEM_DRIVER, M_NOWAIT); if (dev->unique == NULL) { DRM_UNLOCK(dev); return ENOMEM; } snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%1x", dev->pci_domain, dev->pci_bus, dev->pci_slot, dev->pci_func); DRM_UNLOCK(dev); return 0; } int drm_getmap(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_map *map = data; drm_local_map_t *mapinlist; int idx; int i = 0; idx = map->offset; DRM_LOCK(dev); if (idx < 0) { DRM_UNLOCK(dev); return EINVAL; } TAILQ_FOREACH(mapinlist, &dev->maplist, link) { if (i == idx) { map->offset = mapinlist->offset; map->size = mapinlist->size; map->type = mapinlist->type; map->flags = mapinlist->flags; map->handle = mapinlist->handle; map->mtrr = mapinlist->mtrr; break; } i++; } DRM_UNLOCK(dev); if (mapinlist == NULL) return EINVAL; return 0; } int drm_getclient(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_client *client = data; struct drm_file *pt; int idx; int i = 0; idx = client->idx; DRM_LOCK(dev); TAILQ_FOREACH(pt, &dev->files, link) { if (i == idx) { client->auth = pt->authenticated; client->pid = pt->pid; client->uid = pt->uid; client->magic = pt->magic; client->iocs = pt->ioctl_count; DRM_UNLOCK(dev); return 0; } i++; } DRM_UNLOCK(dev); return EINVAL; } int drm_getstats(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_stats *stats = data; int i; memset(stats, 0, sizeof(struct drm_stats)); DRM_LOCK(dev); for (i = 0; i < dev->counters; i++) { if (dev->types[i] == _DRM_STAT_LOCK) stats->data[i].value = (dev->lock.hw_lock ? dev->lock.hw_lock->lock : 0); else stats->data[i].value = atomic_read(&dev->counts[i]); stats->data[i].type = dev->types[i]; } stats->count = dev->counters; DRM_UNLOCK(dev); return 0; } int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_get_cap *req = data; req->value = 0; switch (req->capability) { case DRM_CAP_DUMB_BUFFER: if (dev->driver->dumb_create) req->value = 1; break; case DRM_CAP_VBLANK_HIGH_CRTC: req->value = 1; break; case DRM_CAP_DUMB_PREFERRED_DEPTH: req->value = dev->mode_config.preferred_depth; break; case DRM_CAP_DUMB_PREFER_SHADOW: req->value = dev->mode_config.prefer_shadow; break; default: return EINVAL; } return 0; } #define DRM_IF_MAJOR 1 #define DRM_IF_MINOR 2 int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_set_version *sv = data; struct drm_set_version ver; int if_version; /* Save the incoming data, and set the response before continuing * any further. */ ver = *sv; sv->drm_di_major = DRM_IF_MAJOR; sv->drm_di_minor = DRM_IF_MINOR; sv->drm_dd_major = dev->driver->major; sv->drm_dd_minor = dev->driver->minor; DRM_DEBUG("ver.drm_di_major %d ver.drm_di_minor %d " "ver.drm_dd_major %d ver.drm_dd_minor %d\n", ver.drm_di_major, ver.drm_di_minor, ver.drm_dd_major, ver.drm_dd_minor); DRM_DEBUG("sv->drm_di_major %d sv->drm_di_minor %d " "sv->drm_dd_major %d sv->drm_dd_minor %d\n", sv->drm_di_major, sv->drm_di_minor, sv->drm_dd_major, sv->drm_dd_minor); if (ver.drm_di_major != -1) { if (ver.drm_di_major != DRM_IF_MAJOR || ver.drm_di_minor < 0 || ver.drm_di_minor > DRM_IF_MINOR) { return EINVAL; } if_version = DRM_IF_VERSION(ver.drm_di_major, ver.drm_dd_minor); dev->if_version = DRM_MAX(if_version, dev->if_version); if (ver.drm_di_minor >= 1) { /* * Version 1.1 includes tying of DRM to specific device */ drm_set_busid(dev); } } if (ver.drm_dd_major != -1) { if (ver.drm_dd_major != dev->driver->major || ver.drm_dd_minor < 0 || ver.drm_dd_minor > dev->driver->minor) { return EINVAL; } } return 0; } int drm_noop(struct drm_device *dev, void *data, struct drm_file *file_priv) { DRM_DEBUG("\n"); return 0; }