/** * \file drm_stub.h * Stub support * * \author Rickard E. (Rik) Faith */ /* * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org * * Copyright 2001 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 * PRECISION INSIGHT 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. */ #include __FBSDID("$FreeBSD$"); #include #include #ifdef DRM_DEBUG_DEFAULT_ON unsigned int drm_debug = (DRM_DEBUGBITS_DEBUG | DRM_DEBUGBITS_KMS | DRM_DEBUGBITS_FAILED_IOCTL); #else unsigned int drm_debug = 0; /* 1 to enable debug output */ #endif EXPORT_SYMBOL(drm_debug); unsigned int drm_notyet = 0; unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */ EXPORT_SYMBOL(drm_vblank_offdelay); unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */ EXPORT_SYMBOL(drm_timestamp_precision); /* * Default to use monotonic timestamps for wait-for-vblank and page-flip * complete events. */ unsigned int drm_timestamp_monotonic = 1; MODULE_AUTHOR(CORE_AUTHOR); MODULE_DESCRIPTION(CORE_DESC); MODULE_LICENSE("GPL and additional rights"); MODULE_PARM_DESC(debug, "Enable debug output"); MODULE_PARM_DESC(vblankoffdelay, "Delay until vblank irq auto-disable [msecs]"); MODULE_PARM_DESC(timestamp_precision_usec, "Max. error on timestamps [usecs]"); MODULE_PARM_DESC(timestamp_monotonic, "Use monotonic timestamps"); module_param_named(debug, drm_debug, int, 0600); module_param_named(vblankoffdelay, drm_vblank_offdelay, int, 0600); module_param_named(timestamp_precision_usec, drm_timestamp_precision, int, 0600); module_param_named(timestamp_monotonic, drm_timestamp_monotonic, int, 0600); static struct cdevsw drm_cdevsw = { .d_version = D_VERSION, .d_open = drm_open, .d_read = drm_read, .d_ioctl = drm_ioctl, .d_poll = drm_poll, .d_mmap_single = drm_mmap_single, .d_name = "drm", .d_flags = D_TRACKCLOSE }; static int drm_minor_get_id(struct drm_device *dev, int type) { int new_id; new_id = device_get_unit(dev->dev); if (new_id >= 64) return -EINVAL; if (type == DRM_MINOR_CONTROL) { new_id += 64; } else if (type == DRM_MINOR_RENDER) { new_id += 128; } return new_id; } struct drm_master *drm_master_create(struct drm_minor *minor) { struct drm_master *master; master = malloc(sizeof(*master), DRM_MEM_KMS, M_NOWAIT | M_ZERO); if (!master) return NULL; refcount_init(&master->refcount, 1); mtx_init(&master->lock.spinlock, "drm_master__lock__spinlock", NULL, MTX_DEF); DRM_INIT_WAITQUEUE(&master->lock.lock_queue); drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER); INIT_LIST_HEAD(&master->magicfree); master->minor = minor; list_add_tail(&master->head, &minor->master_list); return master; } struct drm_master *drm_master_get(struct drm_master *master) { refcount_acquire(&master->refcount); return master; } EXPORT_SYMBOL(drm_master_get); static void drm_master_destroy(struct drm_master *master) { struct drm_magic_entry *pt, *next; struct drm_device *dev = master->minor->dev; struct drm_map_list *r_list, *list_temp; list_del(&master->head); if (dev->driver->master_destroy) dev->driver->master_destroy(dev, master); list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) { if (r_list->master == master) { drm_rmmap_locked(dev, r_list->map); r_list = NULL; } } if (master->unique) { free(master->unique, DRM_MEM_DRIVER); master->unique = NULL; master->unique_len = 0; } list_for_each_entry_safe(pt, next, &master->magicfree, head) { list_del(&pt->head); drm_ht_remove_item(&master->magiclist, &pt->hash_item); free(pt, DRM_MEM_MAGIC); } drm_ht_remove(&master->magiclist); free(master, DRM_MEM_KMS); } void drm_master_put(struct drm_master **master) { if (refcount_release(&(*master)->refcount)) drm_master_destroy(*master); *master = NULL; } EXPORT_SYMBOL(drm_master_put); int drm_setmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { int ret; if (file_priv->is_master) return 0; if (file_priv->minor->master && file_priv->minor->master != file_priv->master) return -EINVAL; if (!file_priv->master) return -EINVAL; if (file_priv->minor->master) return -EINVAL; DRM_LOCK(dev); file_priv->minor->master = drm_master_get(file_priv->master); file_priv->is_master = 1; if (dev->driver->master_set) { ret = dev->driver->master_set(dev, file_priv, false); if (unlikely(ret != 0)) { file_priv->is_master = 0; drm_master_put(&file_priv->minor->master); } } DRM_UNLOCK(dev); return 0; } int drm_dropmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { if (!file_priv->is_master) return -EINVAL; if (!file_priv->minor->master) return -EINVAL; DRM_LOCK(dev); if (dev->driver->master_drop) dev->driver->master_drop(dev, file_priv, false); drm_master_put(&file_priv->minor->master); file_priv->is_master = 0; DRM_UNLOCK(dev); return 0; } int drm_fill_in_dev(struct drm_device *dev, struct drm_driver *driver) { int retcode, i; INIT_LIST_HEAD(&dev->filelist); INIT_LIST_HEAD(&dev->ctxlist); INIT_LIST_HEAD(&dev->maplist); INIT_LIST_HEAD(&dev->vblank_event_list); mtx_init(&dev->irq_lock, "drmirq", NULL, MTX_DEF); mtx_init(&dev->count_lock, "drmcount", NULL, MTX_DEF); mtx_init(&dev->event_lock, "drmev", NULL, MTX_DEF); sx_init(&dev->dev_struct_lock, "drmslk"); mtx_init(&dev->ctxlist_mutex, "drmctxlist", NULL, MTX_DEF); mtx_init(&dev->pcir_lock, "drmpcir", NULL, MTX_DEF); if (drm_ht_create(&dev->map_hash, 12)) { return -ENOMEM; } /* the DRM has 6 basic counters */ dev->counters = 6; dev->types[0] = _DRM_STAT_LOCK; dev->types[1] = _DRM_STAT_OPENS; dev->types[2] = _DRM_STAT_CLOSES; dev->types[3] = _DRM_STAT_IOCTLS; dev->types[4] = _DRM_STAT_LOCKS; dev->types[5] = _DRM_STAT_UNLOCKS; /* * FIXME Linux<->FreeBSD: this is done in drm_setup() on Linux. */ for (i = 0; i < ARRAY_SIZE(dev->counts); i++) atomic_set(&dev->counts[i], 0); dev->driver = driver; retcode = drm_pci_agp_init(dev); if (retcode) goto error_out_unreg; retcode = drm_ctxbitmap_init(dev); if (retcode) { DRM_ERROR("Cannot allocate memory for context bitmap.\n"); goto error_out_unreg; } if (driver->driver_features & DRIVER_GEM) { retcode = drm_gem_init(dev); if (retcode) { DRM_ERROR("Cannot initialize graphics execution " "manager (GEM)\n"); goto error_out_unreg; } } retcode = drm_sysctl_init(dev); if (retcode != 0) { DRM_ERROR("Failed to create hw.dri sysctl entry: %d\n", retcode); } return 0; error_out_unreg: drm_cancel_fill_in_dev(dev); return retcode; } EXPORT_SYMBOL(drm_fill_in_dev); void drm_cancel_fill_in_dev(struct drm_device *dev) { struct drm_driver *driver; driver = dev->driver; drm_sysctl_cleanup(dev); if (driver->driver_features & DRIVER_GEM) drm_gem_destroy(dev); drm_ctxbitmap_cleanup(dev); if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) && dev->agp && dev->agp->agp_mtrr >= 0) { int retval; retval = drm_mtrr_del(dev->agp->agp_mtrr, dev->agp->agp_info.ai_aperture_base, dev->agp->agp_info.ai_aperture_size, DRM_MTRR_WC); DRM_DEBUG("mtrr_del=%d\n", retval); } free(dev->agp, DRM_MEM_AGPLISTS); dev->agp = NULL; drm_ht_remove(&dev->map_hash); mtx_destroy(&dev->irq_lock); mtx_destroy(&dev->count_lock); mtx_destroy(&dev->event_lock); sx_destroy(&dev->dev_struct_lock); mtx_destroy(&dev->ctxlist_mutex); mtx_destroy(&dev->pcir_lock); } /** * Get a secondary minor number. * * \param dev device data structure * \param sec-minor structure to hold the assigned minor * \return negative number on failure. * * Search an empty entry and initialize it to the given parameters, and * create the proc init entry via proc_init(). This routines assigns * minor numbers to secondary heads of multi-headed cards */ int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type) { struct drm_minor *new_minor; int ret; int minor_id; const char *minor_devname; DRM_DEBUG("\n"); minor_id = drm_minor_get_id(dev, type); if (minor_id < 0) return minor_id; new_minor = malloc(sizeof(struct drm_minor), DRM_MEM_MINOR, M_NOWAIT | M_ZERO); if (!new_minor) { ret = -ENOMEM; goto err_idr; } new_minor->type = type; new_minor->dev = dev; new_minor->index = minor_id; INIT_LIST_HEAD(&new_minor->master_list); new_minor->buf_sigio = NULL; switch (type) { case DRM_MINOR_CONTROL: minor_devname = "dri/controlD%d"; break; case DRM_MINOR_RENDER: minor_devname = "dri/renderD%d"; break; default: minor_devname = "dri/card%d"; break; } ret = make_dev_p(MAKEDEV_WAITOK | MAKEDEV_CHECKNAME, &new_minor->device, &drm_cdevsw, 0, DRM_DEV_UID, DRM_DEV_GID, DRM_DEV_MODE, minor_devname, minor_id); if (ret) { DRM_ERROR("Failed to create cdev: %d\n", ret); goto err_mem; } new_minor->device->si_drv1 = new_minor; *minor = new_minor; DRM_DEBUG("new minor assigned %d\n", minor_id); return 0; err_mem: free(new_minor, DRM_MEM_MINOR); err_idr: *minor = NULL; return ret; } EXPORT_SYMBOL(drm_get_minor); /** * Put a secondary minor number. * * \param sec_minor - structure to be released * \return always zero * * Cleans up the proc resources. Not legal for this to be the * last minor released. * */ int drm_put_minor(struct drm_minor **minor_p) { struct drm_minor *minor = *minor_p; DRM_DEBUG("release secondary minor %d\n", minor->index); funsetown(&minor->buf_sigio); destroy_dev(minor->device); free(minor, DRM_MEM_MINOR); *minor_p = NULL; return 0; } EXPORT_SYMBOL(drm_put_minor); /** * Called via drm_exit() at module unload time or when pci device is * unplugged. * * Cleans up all DRM device, calling drm_lastclose(). * */ void drm_put_dev(struct drm_device *dev) { struct drm_driver *driver; struct drm_map_list *r_list, *list_temp; DRM_DEBUG("\n"); if (!dev) { DRM_ERROR("cleanup called no dev\n"); return; } driver = dev->driver; drm_lastclose(dev); if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) && dev->agp && dev->agp->agp_mtrr >= 0) { int retval; retval = drm_mtrr_del(dev->agp->agp_mtrr, dev->agp->agp_info.ai_aperture_base, dev->agp->agp_info.ai_aperture_size, DRM_MTRR_WC); DRM_DEBUG("mtrr_del=%d\n", retval); } if (drm_core_check_feature(dev, DRIVER_MODESET)) drm_mode_group_free(&dev->primary->mode_group); if (dev->driver->unload) dev->driver->unload(dev); drm_sysctl_cleanup(dev); if (drm_core_has_AGP(dev) && dev->agp) { free(dev->agp, DRM_MEM_AGPLISTS); dev->agp = NULL; } drm_vblank_cleanup(dev); list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) drm_rmmap(dev, r_list->map); drm_ht_remove(&dev->map_hash); drm_ctxbitmap_cleanup(dev); if (drm_core_check_feature(dev, DRIVER_MODESET)) drm_put_minor(&dev->control); if (driver->driver_features & DRIVER_GEM) drm_gem_destroy(dev); drm_put_minor(&dev->primary); mtx_destroy(&dev->irq_lock); mtx_destroy(&dev->count_lock); mtx_destroy(&dev->event_lock); sx_destroy(&dev->dev_struct_lock); mtx_destroy(&dev->ctxlist_mutex); mtx_destroy(&dev->pcir_lock); #ifdef FREEBSD_NOTYET list_del(&dev->driver_item); #endif /* FREEBSD_NOTYET */ } EXPORT_SYMBOL(drm_put_dev);