/*- * Copyright 1999, 2000 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 * Gareth Hughes * */ /** @file drm_drv.c * The catch-all file for DRM device support, including module setup/teardown, * open/close, and ioctl dispatch. */ #if defined(__FreeBSD__) #include #elif defined(__NetBSD__) #include #endif #include "drmP.h" #include "drm.h" #include "drm_sarea.h" #ifdef DRM_DEBUG_DEFAULT_ON int drm_debug_flag = 1; #else int drm_debug_flag = 0; #endif static int drm_load(struct drm_device *dev); static void drm_unload(struct drm_device *dev); static drm_pci_id_list_t *drm_find_description(int vendor, int device, drm_pci_id_list_t *idlist); #if defined(__FreeBSD__) #define DRIVER_SOFTC(unit) \ ((struct drm_device *)devclass_get_softc(drm_devclass, unit)) MODULE_VERSION(drm, 1); MODULE_DEPEND(drm, agp, 1, 1, 1); MODULE_DEPEND(drm, pci, 1, 1, 1); MODULE_DEPEND(drm, mem, 1, 1, 1); #elif defined(__NetBSD__) #define DRIVER_SOFTC(kdev) drm_get_device_from_kdev(kdev) #endif static drm_ioctl_desc_t drm_ioctls[256] = { DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0), DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0), DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0), DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0), DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), #ifndef DRM_NO_AGP DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), #endif DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, 0), DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0), DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_draw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), }; #if defined(__FreeBSD__) 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 = drm_mmap, .d_name = "drm", .d_flags = D_TRACKCLOSE }; int drm_msi = 1; /* Enable by default. */ TUNABLE_INT("hw.drm.msi", &drm_msi); static struct drm_msi_blacklist_entry drm_msi_blacklist[] = { {0x8086, 0x2772}, /* Intel i945G */ \ {0x8086, 0x27A2}, /* Intel i945GM */ \ {0x8086, 0x27AE}, /* Intel i945GME */ \ {0, 0} }; static int drm_msi_is_blacklisted(int vendor, int device) { int i = 0; for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) { if ((drm_msi_blacklist[i].vendor == vendor) && (drm_msi_blacklist[i].device == device)) { return 1; } } return 0; } int drm_probe(device_t kdev, drm_pci_id_list_t *idlist) { drm_pci_id_list_t *id_entry; int vendor, device; #if __FreeBSD_version < 700010 device_t realdev; if (!strcmp(device_get_name(kdev), "drmsub")) realdev = device_get_parent(kdev); else realdev = kdev; vendor = pci_get_vendor(realdev); device = pci_get_device(realdev); #else vendor = pci_get_vendor(kdev); device = pci_get_device(kdev); #endif if (pci_get_class(kdev) != PCIC_DISPLAY || pci_get_subclass(kdev) != PCIS_DISPLAY_VGA) return ENXIO; id_entry = drm_find_description(vendor, device, idlist); if (id_entry != NULL) { if (!device_get_desc(kdev)) { DRM_DEBUG("desc : %s\n", device_get_desc(kdev)); device_set_desc(kdev, id_entry->name); } return 0; } return ENXIO; } int drm_attach(device_t kdev, drm_pci_id_list_t *idlist) { struct drm_device *dev; drm_pci_id_list_t *id_entry; int unit, msicount; unit = device_get_unit(kdev); dev = device_get_softc(kdev); #if __FreeBSD_version < 700010 if (!strcmp(device_get_name(kdev), "drmsub")) dev->device = device_get_parent(kdev); else dev->device = kdev; #else dev->device = kdev; #endif dev->devnode = make_dev(&drm_cdevsw, unit, DRM_DEV_UID, DRM_DEV_GID, DRM_DEV_MODE, "dri/card%d", unit); #if __FreeBSD_version >= 700053 dev->pci_domain = pci_get_domain(dev->device); #else dev->pci_domain = 0; #endif dev->pci_bus = pci_get_bus(dev->device); dev->pci_slot = pci_get_slot(dev->device); dev->pci_func = pci_get_function(dev->device); dev->pci_vendor = pci_get_vendor(dev->device); dev->pci_device = pci_get_device(dev->device); if (drm_msi && !drm_msi_is_blacklisted(dev->pci_vendor, dev->pci_device)) { msicount = pci_msi_count(dev->device); DRM_DEBUG("MSI count = %d\n", msicount); if (msicount > 1) msicount = 1; if (pci_alloc_msi(dev->device, &msicount) == 0) { DRM_INFO("MSI enabled %d message(s)\n", msicount); dev->msi_enabled = 1; dev->irqrid = 1; } } dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ, &dev->irqrid, RF_SHAREABLE); if (!dev->irqr) { return ENOENT; } dev->irq = (int) rman_get_start(dev->irqr); mtx_init(&dev->dev_lock, "drmdev", NULL, MTX_DEF); mtx_init(&dev->irq_lock, "drmirq", NULL, MTX_DEF); mtx_init(&dev->vbl_lock, "drmvbl", NULL, MTX_DEF); mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF); id_entry = drm_find_description(dev->pci_vendor, dev->pci_device, idlist); dev->id_entry = id_entry; return drm_load(dev); } int drm_detach(device_t kdev) { struct drm_device *dev; dev = device_get_softc(kdev); drm_unload(dev); bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, dev->irqr); if (dev->msi_enabled) { pci_release_msi(dev->device); DRM_INFO("MSI released\n"); } return 0; } #ifndef DRM_DEV_NAME #define DRM_DEV_NAME "drm" #endif devclass_t drm_devclass; #elif defined(__NetBSD__) /* * Mapping from device minor to struct drm_device. * This is needed, because each driver (radeon, i915, etc.) has its own * _cd structure, so we can't just lookup from _cd with minor. */ struct drm_device *drm_units[DRM_MAXUNITS]; struct cdevsw drm_cdevsw = { .d_open = drm_open, .d_close = drm_close, .d_read = drm_read, .d_write = nowrite, .d_ioctl = drm_ioctl, .d_stop = nostop, .d_tty = notty, .d_poll = drm_poll, .d_mmap = drm_mmap, .d_kqfilter = nokqfilter, .d_discard = nodiscard, .d_flag = D_TTY | D_NEGOFFSAFE }; int drm_refcnt = 0; int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist) { drm_pci_id_list_t *id_entry; id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id), idlist); if (id_entry != NULL) { return 1; } return 0; } void drm_attach(device_t kdev, struct pci_attach_args *pa, drm_pci_id_list_t *idlist) { device_t parent_dev; struct drm_device *dev; int unit, parent_unit; unit = device_unit(kdev); if (unit < 0 || unit >= DRM_MAXUNITS) panic("drm_attach: device unit %d invalid", unit); if (drm_units[unit] != NULL) panic("drm_attach: unit %d already attached", unit); /* * this is kind of ugly but we fake up the pci "domain" by using * our pci unit number, so, find our parent pci device's unit... */ parent_dev = kdev; do { parent_dev = device_parent(parent_dev); } while (parent_dev && !device_is_a(parent_dev, "pci")); parent_unit = device_unit(parent_dev); if (parent_unit < 0) panic("drm_attach: device parent_unit %d invalid", parent_unit); dev = device_private(kdev); dev->device = kdev; drm_units[unit] = dev; for (unit = 0; unit < DRM_MAX_PCI_RESOURCE; unit++) { dev->pci_map_data[unit].mapped = 0; dev->pci_map_data[unit].maptype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, PCI_MAPREG_START + unit*4); if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, PCI_MAPREG_START + unit*4, dev->pci_map_data[unit].maptype, &(dev->pci_map_data[unit].base), &(dev->pci_map_data[unit].size), &(dev->pci_map_data[unit].flags))) { DRM_DEBUG("pci_mapreg info for %d failed\n", PCI_MAPREG_START + unit*4); dev->pci_map_data[unit].base = 0; dev->pci_map_data[unit].size = 0; } if (dev->pci_map_data[unit].maptype == PCI_MAPREG_TYPE_MEM) dev->pci_map_data[unit].flags |= BUS_SPACE_MAP_LINEAR; if (dev->pci_map_data[unit].maptype == (PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT)) dev->pci_map_data[unit].flags |= BUS_SPACE_MAP_LINEAR; DRM_DEBUG("pci resource %d: type=%d, base=%lx, size=%zx, flags=%x\n", unit, dev->pci_map_data[unit].maptype, (unsigned long)dev->pci_map_data[unit].base, dev->pci_map_data[unit].size, dev->pci_map_data[unit].flags); } for (unit = 0; unit < DRM_MAX_PCI_RESOURCE; unit++) { dev->agp_map_data[unit].mapped = 0; dev->agp_map_data[unit].maptype = PCI_MAPREG_TYPE_MEM; } mutex_init(&dev->dev_lock, MUTEX_DEFAULT, IPL_NONE); mutex_init(&dev->irq_lock, MUTEX_DEFAULT, IPL_VM); mutex_init(&dev->vbl_lock, MUTEX_DEFAULT, IPL_NONE); mutex_init(&dev->drw_lock, MUTEX_DEFAULT, IPL_NONE); memcpy(&dev->pa, pa, sizeof(dev->pa)); dev->irq = pa->pa_intrpin; dev->pci_domain = parent_unit; dev->pci_bus = pa->pa_bus; dev->pci_slot = pa->pa_device; dev->pci_func = pa->pa_function; dev->pci_vendor = PCI_VENDOR(pa->pa_id); dev->pci_device = PCI_PRODUCT(pa->pa_id); dev->id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id), idlist); aprint_naive("\n"); aprint_normal(": %s\n", dev->id_entry->name); drm_load(dev); } int drm_detach(device_t self, int flags) { struct drm_device *dev = device_private(self); /* XXX locking */ if (dev->open_count) return EBUSY; drm_unload(dev); drm_units[device_unit(self)] = NULL; free(dev->driver, DRM_MEM_DRIVER); return 0; } #endif drm_pci_id_list_t *drm_find_description(int vendor, int device, drm_pci_id_list_t *idlist) { int i = 0; for (i = 0; idlist[i].vendor != 0; i++) { if ((idlist[i].vendor == vendor) && ((idlist[i].device == device) || (idlist[i].device == 0))) { return &idlist[i]; } } return NULL; } static int drm_firstopen(struct drm_device *dev) { drm_local_map_t *map; int i; DRM_SPINLOCK_ASSERT(&dev->dev_lock); /* prebuild the SAREA */ i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, _DRM_CONTAINS_LOCK, &map); if (i != 0) return i; if (dev->driver->firstopen) dev->driver->firstopen(dev); dev->buf_use = 0; if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) { i = drm_dma_setup(dev); if (i != 0) return i; } for (i = 0; i < DRM_HASH_SIZE; i++) { dev->magiclist[i].head = NULL; dev->magiclist[i].tail = NULL; } dev->lock.lock_queue = 0; dev->irq_enabled = 0; dev->context_flag = 0; dev->last_context = 0; dev->if_version = 0; #if defined(__FreeBSD__) dev->buf_sigio = NULL; #elif defined(__NetBSD__) dev->buf_pgid = 0; #endif DRM_DEBUG("\n"); return 0; } static int drm_lastclose(struct drm_device *dev) { drm_magic_entry_t *pt, *next; drm_local_map_t *map, *mapsave; int i; DRM_SPINLOCK_ASSERT(&dev->dev_lock); DRM_DEBUG("\n"); if (dev->driver->lastclose != NULL) dev->driver->lastclose(dev); if (dev->irq_enabled) drm_irq_uninstall(dev); if (dev->unique) { free(dev->unique, DRM_MEM_DRIVER); dev->unique = NULL; dev->unique_len = 0; } /* Clear pid list */ for (i = 0; i < DRM_HASH_SIZE; i++) { for (pt = dev->magiclist[i].head; pt; pt = next) { next = pt->next; free(pt, DRM_MEM_MAGIC); } dev->magiclist[i].head = dev->magiclist[i].tail = NULL; } DRM_UNLOCK(); drm_drawable_free_all(dev); DRM_LOCK(); #ifndef DRM_NO_AGP /* Clear AGP information */ if (dev->agp) { drm_agp_mem_t *entry; drm_agp_mem_t *nexte; /* Remove AGP resources, but leave dev->agp intact until * drm_unload is called. */ for (entry = dev->agp->memory; entry; entry = nexte) { nexte = entry->next; if (entry->bound) drm_agp_unbind_memory(entry->handle); drm_agp_free_memory(entry->handle); free(entry, DRM_MEM_AGPLISTS); } dev->agp->memory = NULL; if (dev->agp->acquired) drm_agp_release(dev); dev->agp->acquired = 0; dev->agp->enabled = 0; } #endif if (dev->sg != NULL) { drm_sg_cleanup(dev->sg); dev->sg = NULL; } TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { if (!(map->flags & _DRM_DRIVER)) drm_rmmap(dev, map); } drm_dma_takedown(dev); if (dev->lock.hw_lock) { dev->lock.hw_lock = NULL; /* SHM removed */ dev->lock.file_priv = NULL; DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); } return 0; } static int drm_load(struct drm_device *dev) { int i, retcode; DRM_DEBUG("\n"); TAILQ_INIT(&dev->maplist); drm_mem_init(); drm_sysctl_init(dev); TAILQ_INIT(&dev->files); 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; for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++) atomic_set(&dev->counts[i], 0); if (dev->driver->load != NULL) { DRM_LOCK(); /* Shared code returns -errno. */ retcode = -dev->driver->load(dev, dev->id_entry->driver_private); #if defined(__FreeBSD__) if (pci_enable_busmaster(dev->device)) DRM_ERROR("Request to enable bus-master failed.\n"); #endif DRM_UNLOCK(); if (retcode != 0) goto error; } #ifndef DRM_NO_AGP if (drm_core_has_AGP(dev)) { if (drm_device_is_agp(dev)) dev->agp = drm_agp_init(dev); if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) && dev->agp == NULL) { DRM_ERROR("Card isn't AGP, or couldn't initialize " "AGP.\n"); retcode = ENOMEM; goto error; } if (dev->agp != NULL) { if (drm_mtrr_add(dev->agp->info.ai_aperture_base, dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0) dev->agp->mtrr = 1; } } #endif retcode = drm_ctxbitmap_init(dev); if (retcode != 0) { DRM_ERROR("Cannot allocate memory for context bitmap.\n"); goto error; } #if defined(__FreeBSD__) dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL); if (dev->drw_unrhdr == NULL) { DRM_ERROR("Couldn't allocate drawable number allocator\n"); goto error; } #else dev->drw_no = 0; #endif #if defined(__NetBSD__) aprint_normal_dev(dev->device, #else DRM_INFO( #endif "Initialized %s %d.%d.%d %s\n", dev->driver->name, dev->driver->major, dev->driver->minor, dev->driver->patchlevel, dev->driver->date); return 0; error: drm_sysctl_cleanup(dev); DRM_LOCK(); drm_lastclose(dev); DRM_UNLOCK(); #if defined(__FreeBSD__) destroy_dev(dev->devnode); #endif DRM_SPINUNINIT(&dev->drw_lock); DRM_SPINUNINIT(&dev->vbl_lock); DRM_SPINUNINIT(&dev->irq_lock); DRM_SPINUNINIT(&dev->dev_lock); return retcode; } static void drm_unload(struct drm_device *dev) { #if defined(__FreeBSD__) int i; #endif DRM_DEBUG("\n"); drm_sysctl_cleanup(dev); #if defined(__FreeBSD__) destroy_dev(dev->devnode); #endif drm_ctxbitmap_cleanup(dev); if (dev->agp && dev->agp->mtrr) { int __unused retcode; retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base, dev->agp->info.ai_aperture_size, DRM_MTRR_WC); DRM_DEBUG("mtrr_del = %d", retcode); } DRM_LOCK(); drm_lastclose(dev); DRM_UNLOCK(); drm_vblank_cleanup(dev); #if defined(__FreeBSD__) /* Clean up PCI resources allocated by drm_bufs.c. We're not really * worried about resource consumption while the DRM is inactive (between * lastclose and firstopen or unload) because these aren't actually * taking up KVA, just keeping the PCI resource allocated. */ for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) { if (dev->pcir[i] == NULL) continue; bus_release_resource(dev->device, SYS_RES_MEMORY, dev->pcirid[i], dev->pcir[i]); dev->pcir[i] = NULL; } #endif if (dev->agp) { free(dev->agp, DRM_MEM_AGPLISTS); dev->agp = NULL; } if (dev->driver->unload != NULL) { DRM_LOCK(); dev->driver->unload(dev); DRM_UNLOCK(); } #if defined(__FreeBSD__) delete_unrhdr(dev->drw_unrhdr); #endif drm_mem_uninit(); #if defined(__FreeBSD__) if (pci_disable_busmaster(dev->device)) DRM_ERROR("Request to disable bus-master failed.\n"); #endif DRM_SPINUNINIT(&dev->drw_lock); DRM_SPINUNINIT(&dev->vbl_lock); DRM_SPINUNINIT(&dev->irq_lock); DRM_SPINUNINIT(&dev->dev_lock); } int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_version *drmvers = data; int len; #define DRM_COPY( name, value ) \ len = strlen( value ); \ if ( len > name##_len ) len = name##_len; \ name##_len = strlen( value ); \ if ( len && name ) { \ if ( DRM_COPY_TO_USER( name, value, len ) ) \ return EFAULT; \ } drmvers->version_major = dev->driver->major; drmvers->version_minor = dev->driver->minor; drmvers->version_patchlevel = dev->driver->patchlevel; DRM_COPY(drmvers->name, dev->driver->name); DRM_COPY(drmvers->date, dev->driver->date); DRM_COPY(drmvers->desc, dev->driver->desc); return 0; } int drm_open(DRM_CDEV kdev, int flags, int fmt, DRM_STRUCTCDEVPROC *p) { struct drm_device *dev = NULL; int retcode = 0; #if defined(__FreeBSD__) dev = DRIVER_SOFTC(dev2unit(kdev)); #elif defined(__NetBSD__) dev = DRIVER_SOFTC(kdev); if (dev == NULL) return ENXIO; dev->kdev = kdev; #endif DRM_DEBUG("open_count = %d\n", dev->open_count); retcode = drm_open_helper(kdev, flags, fmt, DRM_CDEVPROC_REAL(p), dev); if (!retcode) { atomic_inc(&dev->counts[_DRM_STAT_OPENS]); DRM_LOCK(); #if defined(__FreeBSD__) device_busy(dev->device); #endif if (!dev->open_count++) retcode = drm_firstopen(dev); DRM_UNLOCK(); } return retcode; } #if defined(__FreeBSD__) void drm_close(void *data) #elif defined(__NetBSD__) int drm_close(dev_t kdev, int flags, int fmt, struct lwp *l) #endif { struct drm_file *file_priv; struct drm_device *dev; int retcode = 0; #if defined(__FreeBSD__) file_priv = data; dev = file_priv->dev; #elif defined(__NetBSD__) dev = DRIVER_SOFTC(kdev); #endif DRM_DEBUG("open_count = %d\n", dev->open_count); DRM_LOCK(); #if defined(__NetBSD__) file_priv = drm_find_file_by_proc(dev, l->l_proc); if (file_priv == NULL) { DRM_UNLOCK(); DRM_ERROR("can't find authenticator\n"); return EINVAL; } #endif if (dev->driver->preclose != NULL) dev->driver->preclose(dev, file_priv); /* ======================================================== * Begin inline drm_release */ #if defined(__FreeBSD__) DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", DRM_CURRENTPID, (long)dev->device, dev->open_count); #elif defined(__NetBSD__) DRM_DEBUG("pid = %d, device = 0x%p, open_count = %d\n", DRM_CURRENTPID, dev->device, dev->open_count); #endif if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) && dev->lock.file_priv == file_priv) { DRM_DEBUG("Process %d dead, freeing lock for context %d\n", DRM_CURRENTPID, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); if (dev->driver->reclaim_buffers_locked != NULL) dev->driver->reclaim_buffers_locked(dev, file_priv); drm_lock_free(&dev->lock, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); /* FIXME: may require heavy-handed reset of hardware at this point, possibly processed via a callback to the X server. */ } else if (dev->driver->reclaim_buffers_locked != NULL && dev->lock.hw_lock != NULL) { /* The lock is required to reclaim buffers */ for (;;) { if (!dev->lock.hw_lock) { /* Device has been unregistered */ retcode = EINTR; break; } if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) { dev->lock.file_priv = file_priv; dev->lock.lock_time = jiffies; atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); break; /* Got lock */ } /* Contention */ #if defined(__FreeBSD__) retcode = mtx_sleep((void *)&dev->lock.lock_queue, &dev->dev_lock, PCATCH, "drmlk2", 0); #elif defined(__NetBSD__) retcode = mtsleep((void *)&dev->lock.lock_queue, PCATCH, "drmlk2", 0, &dev->dev_lock); #endif if (retcode) break; } if (retcode == 0) { dev->driver->reclaim_buffers_locked(dev, file_priv); drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT); } } if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && !dev->driver->reclaim_buffers_locked) drm_reclaim_buffers(dev, file_priv); #if defined(__FreeBSD__) funsetown(&dev->buf_sigio); #else dev->buf_pgid = 0; #endif if (dev->driver->postclose != NULL) dev->driver->postclose(dev, file_priv); TAILQ_REMOVE(&dev->files, file_priv, link); free(file_priv, DRM_MEM_FILES); /* ======================================================== * End inline drm_release */ atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); #if defined(__FreeBSD__) device_unbusy(dev->device); #endif #if defined(__NetBSD__) /* On NetBSD, close will only be called once */ DRM_DEBUG("setting open_count %d to 1\n", (int)dev->open_count); while (dev->open_count != 1) { /* * XXXMRG probably should assert that we are freeing * one of these each time. i think. */ if (!TAILQ_EMPTY(&dev->files)) { file_priv = TAILQ_FIRST(&dev->files); TAILQ_REMOVE(&dev->files, file_priv, link); } dev->open_count--; } #endif if (--dev->open_count == 0) { retcode = drm_lastclose(dev); } DRM_UNLOCK(); #if defined(__NetBSD__) return retcode; #endif } /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. */ int drm_ioctl(DRM_CDEV kdev, u_long cmd, DRM_IOCTL_DATA data, int flags, DRM_STRUCTCDEVPROC *p) { struct drm_device *dev = drm_get_device_from_kdev(kdev); int retcode = 0; drm_ioctl_desc_t *ioctl; int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv); int nr = DRM_IOCTL_NR(cmd); int is_driver_ioctl = 0; struct drm_file *file_priv; #if defined(__FreeBSD__) retcode = devfs_get_cdevpriv((void **)&file_priv); if (retcode != 0) { DRM_ERROR("can't find authenticator\n"); return EINVAL; } #elif defined(__NetBSD__) DRM_LOCK(); file_priv = drm_find_file_by_proc(dev, p->l_proc); DRM_UNLOCK(); if (file_priv == NULL) { DRM_ERROR("can't find authenticator\n"); return EINVAL; } #endif atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); ++file_priv->ioctl_count; #if defined(__FreeBSD__) DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", DRM_CURRENTPID, cmd, nr, (long)dev->device, file_priv->authenticated); #elif defined(__NetBSD__) DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev %p, auth=%d\n", DRM_CURRENTPID, cmd, nr, dev->device, file_priv->authenticated); #endif switch (cmd) { case FIONBIO: case FIOASYNC: return 0; #if defined(__FreeBSD__) case FIOSETOWN: return fsetown(*(int *)data, &dev->buf_sigio); case FIOGETOWN: *(int *) data = fgetown(&dev->buf_sigio); return 0; #endif #if defined(__NetBSD__) case SIOCSPGRP: case TIOCSPGRP: case FIOSETOWN: return fsetown(&dev->buf_pgid, cmd, data); case SIOCGPGRP: case TIOCGPGRP: case FIOGETOWN: return fgetown(dev->buf_pgid, cmd, data); #endif } if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); return EINVAL; } ioctl = &drm_ioctls[nr]; /* It's not a core DRM ioctl, try driver-specific. */ if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) { /* The array entries begin at DRM_COMMAND_BASE ioctl nr */ nr -= DRM_COMMAND_BASE; if (nr > dev->driver->max_ioctl) { DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n", nr, dev->driver->max_ioctl); return EINVAL; } ioctl = &dev->driver->ioctls[nr]; is_driver_ioctl = 1; } func = ioctl->func; if (func == NULL) { DRM_DEBUG("no function\n"); return EINVAL; } if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(DRM_CDEVPROC_REAL(p))) || ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || ((ioctl->flags & DRM_MASTER) && !file_priv->master)) return EACCES; if (is_driver_ioctl) { DRM_LOCK(); /* shared code returns -errno */ retcode = -func(dev, data, file_priv); DRM_UNLOCK(); } else { retcode = func(dev, data, file_priv); } if (retcode != 0) DRM_DEBUG(" returning %d\n", retcode); return retcode; } drm_local_map_t *drm_getsarea(struct drm_device *dev) { drm_local_map_t *map; DRM_SPINLOCK_ASSERT(&dev->dev_lock); TAILQ_FOREACH(map, &dev->maplist, link) { if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK)) return map; } return NULL; } #if DRM_LINUX #include MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1); #define LINUX_IOCTL_DRM_MIN 0x6400 #define LINUX_IOCTL_DRM_MAX 0x64ff static linux_ioctl_function_t drm_linux_ioctl; static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl, LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX}; SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE, linux_ioctl_register_handler, &drm_handler); SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, linux_ioctl_unregister_handler, &drm_handler); /* The bits for in/out are switched on Linux */ #define LINUX_IOC_IN IOC_OUT #define LINUX_IOC_OUT IOC_IN static int drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args) { int error; int cmd = args->cmd; args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT); if (cmd & LINUX_IOC_IN) args->cmd |= IOC_IN; if (cmd & LINUX_IOC_OUT) args->cmd |= IOC_OUT; error = ioctl(p, (struct ioctl_args *)args); return error; } #endif /* DRM_LINUX */ #if defined(__NetBSD__) /* Module support */ MODULE(MODULE_CLASS_DRIVER, drm, "pci"); static int drm_modcmd(modcmd_t cmd, void *arg) { #ifdef _MODULE int bmajor = -1, cmajor = -1; switch (cmd) { case MODULE_CMD_INIT: return devsw_attach("drm", NULL, &bmajor, &drm_cdevsw, &cmajor); case MODULE_CMD_FINI: devsw_detach(NULL, &drm_cdevsw); return 0; default: return ENOTTY; } #else if (cmd == MODULE_CMD_INIT) return 0; return ENOTTY; #endif } #endif /* __NetBSD__ */