| /*- |
| * 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 <faith@valinux.com> |
| * Gareth Hughes <gareth@valinux.com> |
| * |
| */ |
| |
| /** @file drm_drv.c |
| * The catch-all file for DRM device support, including module setup/teardown, |
| * open/close, and ioctl dispatch. |
| */ |
| |
| |
| #include <sys/limits.h> |
| #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(drm_device_t *dev); |
| static void drm_unload(drm_device_t *dev); |
| static drm_pci_id_list_t *drm_find_description(int vendor, int device, |
| drm_pci_id_list_t *idlist); |
| |
| #ifdef __FreeBSD__ |
| #define DRIVER_SOFTC(unit) \ |
| ((drm_device_t *)devclass_get_softc(drm_devclass, unit)) |
| |
| MODULE_VERSION(drm, 1); |
| MODULE_DEPEND(drm, agp, 1, 1, 1); |
| MODULE_DEPEND(drm, pci, 1, 1, 1); |
| #if __FreeBSD_version > 502127 |
| MODULE_DEPEND(drm, mem, 1, 1, 1); |
| #endif |
| #endif /* __FreeBSD__ */ |
| |
| #if defined(__NetBSD__) || defined(__OpenBSD__) |
| #define DRIVER_SOFTC(unit) \ |
| ((drm_device_t *)device_lookup(&drm_cd, unit)) |
| #endif /* __NetBSD__ || __OpenBSD__ */ |
| |
| 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_MASTER|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_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER), |
| 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), |
| |
| 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), |
| |
| 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_UPDATE_DRAW, drm_update_draw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| }; |
| |
| #ifdef __FreeBSD__ |
| static struct cdevsw drm_cdevsw = { |
| #if __FreeBSD_version >= 502103 |
| .d_version = D_VERSION, |
| #endif |
| .d_open = drm_open, |
| .d_close = drm_close, |
| .d_read = drm_read, |
| .d_ioctl = drm_ioctl, |
| .d_poll = drm_poll, |
| .d_mmap = drm_mmap, |
| .d_name = "drm", |
| #if __FreeBSD_version >= 502103 |
| .d_flags = D_TRACKCLOSE | D_NEEDGIANT, |
| #else |
| .d_maj = 145, |
| .d_flags = D_TRACKCLOSE, |
| #endif |
| #if __FreeBSD_version < 500000 |
| .d_bmaj = -1 |
| #endif |
| }; |
| |
| int drm_probe(device_t dev, 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(dev), "drmsub")) |
| realdev = device_get_parent(dev); |
| else |
| realdev = dev; |
| vendor = pci_get_vendor(realdev); |
| device = pci_get_device(realdev); |
| #else |
| vendor = pci_get_vendor(dev); |
| device = pci_get_device(dev); |
| #endif |
| |
| id_entry = drm_find_description(vendor, device, idlist); |
| if (id_entry != NULL) { |
| device_set_desc(dev, id_entry->name); |
| return 0; |
| } |
| |
| return ENXIO; |
| } |
| |
| int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist) |
| { |
| drm_device_t *dev; |
| drm_pci_id_list_t *id_entry; |
| int unit; |
| |
| unit = device_get_unit(nbdev); |
| dev = device_get_softc(nbdev); |
| |
| #if __FreeBSD_version < 700010 |
| if (!strcmp(device_get_name(nbdev), "drmsub")) |
| dev->device = device_get_parent(nbdev); |
| else |
| dev->device = nbdev; |
| #else |
| dev->device = nbdev; |
| #endif |
| dev->devnode = make_dev(&drm_cdevsw, |
| unit, |
| DRM_DEV_UID, |
| DRM_DEV_GID, |
| DRM_DEV_MODE, |
| "dri/card%d", unit); |
| #if __FreeBSD_version >= 500000 |
| mtx_init(&dev->dev_lock, "drm device", NULL, MTX_DEF); |
| mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF); |
| #endif |
| |
| id_entry = drm_find_description(pci_get_vendor(dev->device), |
| pci_get_device(dev->device), idlist); |
| dev->id_entry = id_entry; |
| |
| return drm_load(dev); |
| } |
| |
| int drm_detach(device_t dev) |
| { |
| drm_unload(device_get_softc(dev)); |
| return 0; |
| } |
| |
| #ifndef DRM_DEV_NAME |
| #define DRM_DEV_NAME "drm" |
| #endif |
| |
| devclass_t drm_devclass; |
| |
| #elif defined(__NetBSD__) || defined(__OpenBSD__) |
| |
| static struct cdevsw drm_cdevsw = { |
| drm_open, |
| drm_close, |
| drm_read, |
| nowrite, |
| drm_ioctl, |
| nostop, |
| notty, |
| drm_poll, |
| drm_mmap, |
| nokqfilter, |
| D_TTY |
| }; |
| |
| int drm_refcnt = 0; |
| |
| #if defined(__NetBSD__) && __NetBSD_Version__ >= 106080000 |
| MOD_DEV("drm", DRIVER_NAME, NULL, -1, &drm_cdevsw, CDEV_MAJOR); |
| #else |
| MOD_DEV("drm", LM_DT_CHAR, CDEV_MAJOR, &drm_cdevsw); |
| #endif |
| |
| int drm_lkmentry(struct lkm_table *lkmtp, int cmd, int ver); |
| static int drm_lkmhandle(struct lkm_table *lkmtp, int cmd); |
| |
| int drm_modprobe(void); |
| int drm_probe(struct pci_attach_args *pa); |
| void drm_attach(struct pci_attach_args *pa, dev_t kdev); |
| |
| int drm_lkmentry(struct lkm_table *lkmtp, int cmd, int ver) { |
| DISPATCH(lkmtp, cmd, ver, drm_lkmhandle, drm_lkmhandle, drm_lkmhandle); |
| } |
| |
| static int drm_lkmhandle(struct lkm_table *lkmtp, int cmd) |
| { |
| int error = 0; |
| |
| switch(cmd) { |
| case LKM_E_LOAD: |
| if (lkmexists(lkmtp)) |
| return EEXIST; |
| |
| if(drm_modprobe()) |
| return 0; |
| |
| return 1; |
| |
| case LKM_E_UNLOAD: |
| if (drm_refcnt > 0) |
| return (EBUSY); |
| break; |
| case LKM_E_STAT: |
| break; |
| |
| default: |
| error = EIO; |
| break; |
| } |
| |
| return error; |
| } |
| |
| int drm_modprobe(void) |
| { |
| struct pci_attach_args pa; |
| int error; |
| |
| error = pci_find_device(&pa, drm_probe, idlist); |
| if (error != 0) |
| drm_attach(&pa, 0); |
| |
| return error; |
| } |
| |
| int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t idlist) |
| { |
| const char *desc; |
| 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(struct pci_attach_args *pa, dev_t kdev, |
| drm_pci_id_list_t *idlist) |
| { |
| int i; |
| drm_device_t *dev; |
| drm_pci_id_list_t *id_entry; |
| |
| config_makeroom(kdev, &drm_cd); |
| drm_cd.cd_devs[(kdev)] = malloc(sizeof(drm_device_t), M_DRM, M_WAITOK); |
| dev = DRIVER_SOFTC(kdev); |
| |
| memset(dev, 0, sizeof(drm_device_t)); |
| memcpy(&dev->pa, pa, sizeof(dev->pa)); |
| |
| dev->irq = pa->pa_intrline; |
| dev->pci_domain = 0; |
| dev->pci_bus = pa->pa_bus; |
| dev->pci_slot = pa->pa_device; |
| dev->pci_func = pa->pa_function; |
| dev->dma_tag = pa->pa_dmat; |
| |
| id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), |
| PCI_PRODUCT(pa->pa_id), idlist); |
| dev->driver.pci_id_entry = id_entry; |
| |
| DRM_INFO("%s", id_entry->name); |
| drm_load(dev); |
| } |
| |
| int drm_detach(struct device *self, int flags) |
| { |
| drm_unload((drm_device_t *)self); |
| return 0; |
| } |
| |
| int drm_activate(struct device *self, enum devact act) |
| { |
| switch (act) { |
| case DVACT_ACTIVATE: |
| return (EOPNOTSUPP); |
| break; |
| |
| case DVACT_DEACTIVATE: |
| /* FIXME */ |
| break; |
| } |
| return (0); |
| } |
| #endif /* __NetBSD__ || __OpenBSD__ */ |
| |
| 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)) { |
| return &idlist[i]; |
| } |
| } |
| return NULL; |
| } |
| |
| static int drm_firstopen(drm_device_t *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 (dev->driver.use_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; |
| |
| #ifdef __FreeBSD__ |
| dev->buf_sigio = NULL; |
| #elif defined(__NetBSD__) || defined(__OpenBSD__) |
| dev->buf_pgid = 0; |
| #endif |
| |
| DRM_DEBUG( "\n" ); |
| |
| return 0; |
| } |
| |
| static int drm_lastclose(drm_device_t *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, M_DRM); |
| 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, M_DRM); |
| } |
| dev->magiclist[i].head = dev->magiclist[i].tail = NULL; |
| } |
| |
| /* 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, M_DRM); |
| } |
| dev->agp->memory = NULL; |
| |
| if (dev->agp->acquired) |
| drm_agp_release(dev); |
| |
| dev->agp->acquired = 0; |
| dev->agp->enabled = 0; |
| } |
| 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(drm_device_t *dev) |
| { |
| int i, retcode; |
| |
| DRM_DEBUG( "\n" ); |
| |
| dev->irq = pci_get_irq(dev->device); |
| #if defined(__FreeBSD__) && __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); |
| |
| TAILQ_INIT(&dev->maplist); |
| |
| drm_mem_init(); |
| #ifdef __FreeBSD__ |
| drm_sysctl_init(dev); |
| #endif |
| 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); |
| DRM_UNLOCK(); |
| if (retcode != 0) |
| goto error; |
| } |
| |
| if (dev->driver.use_agp) { |
| if (drm_device_is_agp(dev)) |
| dev->agp = drm_agp_init(); |
| if (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; |
| } |
| } |
| |
| retcode = drm_ctxbitmap_init(dev); |
| if (retcode != 0) { |
| DRM_ERROR("Cannot allocate memory for context bitmap.\n"); |
| goto error; |
| } |
| |
| 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; |
| } |
| |
| DRM_INFO("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: |
| #ifdef __FreeBSD__ |
| drm_sysctl_cleanup(dev); |
| #endif |
| DRM_LOCK(); |
| drm_lastclose(dev); |
| DRM_UNLOCK(); |
| #ifdef __FreeBSD__ |
| destroy_dev(dev->devnode); |
| #if __FreeBSD_version >= 500000 |
| mtx_destroy(&dev->dev_lock); |
| #endif |
| #endif |
| return retcode; |
| } |
| |
| static void drm_unload(drm_device_t *dev) |
| { |
| int i; |
| |
| DRM_DEBUG( "\n" ); |
| |
| #ifdef __FreeBSD__ |
| drm_sysctl_cleanup(dev); |
| 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(); |
| |
| /* 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; |
| } |
| |
| if ( dev->agp ) { |
| free(dev->agp, M_DRM); |
| dev->agp = NULL; |
| } |
| |
| if (dev->driver.unload != NULL) |
| dev->driver.unload(dev); |
| |
| delete_unrhdr(dev->drw_unrhdr); |
| |
| drm_mem_uninit(); |
| #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 |
| mtx_destroy(&dev->dev_lock); |
| #endif |
| } |
| |
| |
| int drm_version(drm_device_t *dev, void *data, struct drm_file *file_priv) |
| { |
| drm_version_t *version = 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; \ |
| } |
| |
| version->version_major = dev->driver.major; |
| version->version_minor = dev->driver.minor; |
| version->version_patchlevel = dev->driver.patchlevel; |
| |
| DRM_COPY(version->name, dev->driver.name); |
| DRM_COPY(version->date, dev->driver.date); |
| DRM_COPY(version->desc, dev->driver.desc); |
| |
| return 0; |
| } |
| |
| int drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) |
| { |
| drm_device_t *dev = NULL; |
| int retcode = 0; |
| |
| dev = DRIVER_SOFTC(minor(kdev)); |
| |
| DRM_DEBUG( "open_count = %d\n", dev->open_count ); |
| |
| retcode = drm_open_helper(kdev, flags, fmt, p, dev); |
| |
| if ( !retcode ) { |
| atomic_inc( &dev->counts[_DRM_STAT_OPENS] ); |
| DRM_LOCK(); |
| #ifdef __FreeBSD__ |
| device_busy(dev->device); |
| #endif |
| if ( !dev->open_count++ ) |
| retcode = drm_firstopen(dev); |
| DRM_UNLOCK(); |
| } |
| |
| return retcode; |
| } |
| |
| int drm_close(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) |
| { |
| drm_device_t *dev = drm_get_device_from_kdev(kdev); |
| drm_file_t *file_priv; |
| int retcode = 0; |
| |
| DRM_DEBUG( "open_count = %d\n", dev->open_count ); |
| |
| DRM_LOCK(); |
| |
| file_priv = drm_find_file_by_proc(dev, p); |
| if (!file_priv) { |
| DRM_UNLOCK(); |
| DRM_ERROR("can't find authenticator\n"); |
| return EINVAL; |
| } |
| |
| if (--file_priv->refs != 0) |
| goto done; |
| |
| if (dev->driver.preclose != NULL) |
| dev->driver.preclose(dev, file_priv); |
| |
| /* ======================================================== |
| * Begin inline drm_release |
| */ |
| |
| #ifdef __FreeBSD__ |
| DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n", |
| DRM_CURRENTPID, (long)dev->device, dev->open_count ); |
| #elif defined(__NetBSD__) || defined(__OpenBSD__) |
| DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n", |
| DRM_CURRENTPID, (long)&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, &dev->lock.hw_lock->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.hw_lock->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__) && __FreeBSD_version > 500000 |
| retcode = mtx_sleep((void *)&dev->lock.lock_queue, |
| &dev->dev_lock, PZERO | PCATCH, "drmlk2", 0); |
| #else |
| retcode = tsleep((void *)&dev->lock.lock_queue, |
| PZERO | PCATCH, "drmlk2", 0); |
| #endif |
| if (retcode) |
| break; |
| } |
| if (retcode == 0) { |
| dev->driver.reclaim_buffers_locked(dev, file_priv); |
| drm_lock_free(dev, &dev->lock.hw_lock->lock, |
| DRM_KERNEL_CONTEXT); |
| } |
| } |
| |
| if (dev->driver.use_dma && !dev->driver.reclaim_buffers_locked) |
| drm_reclaim_buffers(dev, file_priv); |
| |
| #if defined (__FreeBSD__) && (__FreeBSD_version >= 500000) |
| funsetown(&dev->buf_sigio); |
| #elif defined(__FreeBSD__) |
| funsetown(dev->buf_sigio); |
| #elif defined(__NetBSD__) || defined(__OpenBSD__) |
| dev->buf_pgid = 0; |
| #endif /* __NetBSD__ || __OpenBSD__ */ |
| |
| if (dev->driver.postclose != NULL) |
| dev->driver.postclose(dev, file_priv); |
| TAILQ_REMOVE(&dev->files, file_priv, link); |
| free(file_priv, M_DRM); |
| |
| /* ======================================================== |
| * End inline drm_release |
| */ |
| |
| done: |
| atomic_inc( &dev->counts[_DRM_STAT_CLOSES] ); |
| #ifdef __FreeBSD__ |
| device_unbusy(dev->device); |
| #endif |
| if (--dev->open_count == 0) { |
| retcode = drm_lastclose(dev); |
| } |
| |
| DRM_UNLOCK(); |
| |
| return retcode; |
| } |
| |
| /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. |
| */ |
| int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags, |
| DRM_STRUCTPROC *p) |
| { |
| drm_device_t *dev = drm_get_device_from_kdev(kdev); |
| int retcode = 0; |
| drm_ioctl_desc_t *ioctl; |
| int (*func)(drm_device_t *dev, void *data, struct drm_file *file_priv); |
| int nr = DRM_IOCTL_NR(cmd); |
| int is_driver_ioctl = 0; |
| drm_file_t *file_priv; |
| |
| DRM_LOCK(); |
| file_priv = drm_find_file_by_proc(dev, p); |
| DRM_UNLOCK(); |
| if (file_priv == NULL) { |
| DRM_ERROR("can't find authenticator\n"); |
| return EINVAL; |
| } |
| |
| atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] ); |
| ++file_priv->ioctl_count; |
| |
| #ifdef __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__) || defined(__OpenBSD__) |
| 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 ); |
| #endif |
| |
| switch (cmd) { |
| case FIONBIO: |
| case FIOASYNC: |
| return 0; |
| |
| #ifdef __FreeBSD__ |
| case FIOSETOWN: |
| return fsetown(*(int *)data, &dev->buf_sigio); |
| |
| case FIOGETOWN: |
| #if (__FreeBSD_version >= 500000) |
| *(int *) data = fgetown(&dev->buf_sigio); |
| #else |
| *(int *) data = fgetown(dev->buf_sigio); |
| #endif |
| return 0; |
| #endif /* __FreeBSD__ */ |
| #if defined(__NetBSD__) || defined(__OpenBSD__) |
| case TIOCSPGRP: |
| dev->buf_pgid = *(int *)data; |
| return 0; |
| |
| case TIOCGPGRP: |
| *(int *)data = dev->buf_pgid; |
| return 0; |
| #endif /* __NetBSD__ */ |
| } |
| |
| 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(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(drm_device_t *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 <sys/sysproto.h> |
| |
| 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 */ |