diff options
Diffstat (limited to 'linux/tdfx_drv.c')
-rw-r--r-- | linux/tdfx_drv.c | 691 |
1 files changed, 29 insertions, 662 deletions
diff --git a/linux/tdfx_drv.c b/linux/tdfx_drv.c index b98a2988..9bb7b84a 100644 --- a/linux/tdfx_drv.c +++ b/linux/tdfx_drv.c @@ -27,670 +27,37 @@ * Authors: * Rickard E. (Rik) Faith <faith@valinux.com> * Daryll Strauss <daryll@valinux.com> - * + * Gareth Hughes <gareth@valinux.com> */ #include <linux/config.h> +#include "tdfx.h" #include "drmP.h" -#include "tdfx_drv.h" - -#define TDFX_NAME "tdfx" -#define TDFX_DESC "3dfx Banshee/Voodoo3+" -#define TDFX_DATE "20001030" -#define TDFX_MAJOR 1 -#define TDFX_MINOR 0 -#define TDFX_PATCHLEVEL 0 - -static drm_device_t tdfx_device; -drm_ctx_t tdfx_res_ctx; - -static struct file_operations tdfx_fops = { -#if LINUX_VERSION_CODE >= 0x020400 - /* This started being used during 2.4.0-test */ - owner: THIS_MODULE, -#endif - open: tdfx_open, - flush: drm_flush, - release: tdfx_release, - ioctl: tdfx_ioctl, - mmap: drm_mmap, - read: drm_read, - fasync: drm_fasync, - poll: drm_poll, -}; - -static struct miscdevice tdfx_misc = { - minor: MISC_DYNAMIC_MINOR, - name: TDFX_NAME, - fops: &tdfx_fops, -}; - -static drm_ioctl_desc_t tdfx_ioctls[] = { - [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { tdfx_version, 0, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique, 0, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { drm_getmagic, 0, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { drm_irq_busid, 0, 1 }, - - [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { drm_block, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { drm_unblock, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { drm_addmap, 1, 1 }, - - [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { tdfx_addctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { tdfx_rmctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { tdfx_modctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { tdfx_getctx, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { tdfx_switchctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { tdfx_newctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { tdfx_resctx, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { tdfx_lock, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { tdfx_unlock, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 }, -#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) - [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = {drm_agp_acquire, 1, 1}, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = {drm_agp_release, 1, 1}, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = {drm_agp_enable, 1, 1}, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = {drm_agp_info, 1, 1}, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = {drm_agp_alloc, 1, 1}, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = {drm_agp_free, 1, 1}, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = {drm_agp_unbind, 1, 1}, - [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = {drm_agp_bind, 1, 1}, -#endif -}; -#define TDFX_IOCTL_COUNT DRM_ARRAY_SIZE(tdfx_ioctls) - -#ifdef MODULE -static char *tdfx = NULL; -#endif - -MODULE_AUTHOR("VA Linux Systems, Inc."); -MODULE_DESCRIPTION("tdfx"); -MODULE_PARM(tdfx, "s"); - -#ifndef MODULE -/* tdfx_options is called by the kernel to parse command-line options - * passed via the boot-loader (e.g., LILO). It calls the insmod option - * routine, drm_parse_drm. - */ - -static int __init tdfx_options(char *str) -{ - drm_parse_options(str); - return 1; -} - -__setup("tdfx=", tdfx_options); -#endif - -static int tdfx_setup(drm_device_t *dev) -{ - int i; - - atomic_set(&dev->ioctl_count, 0); - atomic_set(&dev->vma_count, 0); - dev->buf_use = 0; - atomic_set(&dev->buf_alloc, 0); - - atomic_set(&dev->total_open, 0); - atomic_set(&dev->total_close, 0); - atomic_set(&dev->total_ioctl, 0); - atomic_set(&dev->total_irq, 0); - atomic_set(&dev->total_ctx, 0); - atomic_set(&dev->total_locks, 0); - atomic_set(&dev->total_unlocks, 0); - atomic_set(&dev->total_contends, 0); - atomic_set(&dev->total_sleeps, 0); - - for (i = 0; i < DRM_HASH_SIZE; i++) { - dev->magiclist[i].head = NULL; - dev->magiclist[i].tail = NULL; - } - dev->maplist = NULL; - dev->map_count = 0; - dev->vmalist = NULL; - dev->lock.hw_lock = NULL; - init_waitqueue_head(&dev->lock.lock_queue); - dev->queue_count = 0; - dev->queue_reserved = 0; - dev->queue_slots = 0; - dev->queuelist = NULL; - dev->irq = 0; - dev->context_flag = 0; - dev->interrupt_flag = 0; - dev->dma = 0; - dev->dma_flag = 0; - dev->last_context = 0; - dev->last_switch = 0; - dev->last_checked = 0; - init_timer(&dev->timer); - init_waitqueue_head(&dev->context_wait); - - dev->ctx_start = 0; - dev->lck_start = 0; - - dev->buf_rp = dev->buf; - dev->buf_wp = dev->buf; - dev->buf_end = dev->buf + DRM_BSZ; - dev->buf_async = NULL; - init_waitqueue_head(&dev->buf_readers); - init_waitqueue_head(&dev->buf_writers); - - tdfx_res_ctx.handle=-1; - - DRM_DEBUG("\n"); - - /* The kernel's context could be created here, but is now created - in drm_dma_enqueue. This is more resource-efficient for - hardware that does not do DMA, but may mean that - drm_select_queue fails between the time the interrupt is - initialized and the time the queues are initialized. */ - - return 0; -} - - -static int tdfx_takedown(drm_device_t *dev) -{ - int i; - drm_magic_entry_t *pt, *next; - drm_map_t *map; - drm_vma_entry_t *vma, *vma_next; - - DRM_DEBUG("\n"); - - down(&dev->struct_sem); - del_timer(&dev->timer); - - if (dev->devname) { - drm_free(dev->devname, strlen(dev->devname)+1, DRM_MEM_DRIVER); - dev->devname = NULL; - } - - if (dev->unique) { - drm_free(dev->unique, strlen(dev->unique)+1, 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; - drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC); - } - dev->magiclist[i].head = dev->magiclist[i].tail = NULL; - } -#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) - /* Clear AGP information */ - if (dev->agp) { - drm_agp_mem_t *temp; - drm_agp_mem_t *temp_next; - - temp = dev->agp->memory; - while(temp != NULL) { - temp_next = temp->next; - drm_free_agp(temp->memory, temp->pages); - drm_free(temp, sizeof(*temp), DRM_MEM_AGPLISTS); - temp = temp_next; - } - if (dev->agp->acquired) _drm_agp_release(); - } -#endif - /* Clear vma list (only built for debugging) */ - if (dev->vmalist) { - for (vma = dev->vmalist; vma; vma = vma_next) { - vma_next = vma->next; - drm_free(vma, sizeof(*vma), DRM_MEM_VMAS); - } - dev->vmalist = NULL; - } - - /* Clear map area and mtrr information */ - if (dev->maplist) { - for (i = 0; i < dev->map_count; i++) { - map = dev->maplist[i]; - switch (map->type) { - case _DRM_REGISTERS: - case _DRM_FRAME_BUFFER: -#ifdef CONFIG_MTRR - if (map->mtrr >= 0) { - int retcode; - retcode = mtrr_del(map->mtrr, - map->offset, - map->size); - DRM_DEBUG("mtrr_del = %d\n", retcode); - } -#endif - drm_ioremapfree(map->handle, map->size); - break; - case _DRM_SHM: - drm_free_pages((unsigned long)map->handle, - drm_order(map->size) - - PAGE_SHIFT, - DRM_MEM_SAREA); - break; - case _DRM_AGP: - /* Do nothing here, because this is all - handled in the AGP/GART driver. */ - break; - } - drm_free(map, sizeof(*map), DRM_MEM_MAPS); - } - drm_free(dev->maplist, - dev->map_count * sizeof(*dev->maplist), - DRM_MEM_MAPS); - dev->maplist = NULL; - dev->map_count = 0; - } - - if (dev->lock.hw_lock) { - dev->lock.hw_lock = NULL; /* SHM removed */ - dev->lock.pid = 0; - wake_up_interruptible(&dev->lock.lock_queue); - } - up(&dev->struct_sem); - - return 0; -} - -/* tdfx_init is called via init_module at module load time, or via - * linux/init/main.c (this is not currently supported). */ - -static int __init tdfx_init(void) -{ - int retcode; - drm_device_t *dev = &tdfx_device; - - DRM_DEBUG("\n"); - - memset((void *)dev, 0, sizeof(*dev)); - dev->count_lock = SPIN_LOCK_UNLOCKED; - sema_init(&dev->struct_sem, 1); - -#ifdef MODULE - drm_parse_options(tdfx); -#endif - - if ((retcode = misc_register(&tdfx_misc))) { - DRM_ERROR("Cannot register \"%s\"\n", TDFX_NAME); - return retcode; - } - dev->device = MKDEV(MISC_MAJOR, tdfx_misc.minor); - dev->name = TDFX_NAME; - - drm_mem_init(); - drm_proc_init(dev); -#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) - dev->agp = drm_agp_init(); -#endif - if((retcode = drm_ctxbitmap_init(dev))) { - DRM_ERROR("Cannot allocate memory for context bitmap.\n"); - drm_proc_cleanup(); - misc_deregister(&tdfx_misc); - tdfx_takedown(dev); - return retcode; - } - - DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", - TDFX_NAME, - TDFX_MAJOR, - TDFX_MINOR, - TDFX_PATCHLEVEL, - TDFX_DATE, - tdfx_misc.minor); - - return 0; -} - -/* tdfx_cleanup is called via cleanup_module at module unload time. */ - -static void __exit tdfx_cleanup(void) -{ - drm_device_t *dev = &tdfx_device; - - DRM_DEBUG("\n"); - - drm_proc_cleanup(); - if (misc_deregister(&tdfx_misc)) { - DRM_ERROR("Cannot unload module\n"); - } else { - DRM_INFO("Module unloaded\n"); - } - drm_ctxbitmap_cleanup(dev); - tdfx_takedown(dev); -#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE) - if (dev->agp) { - drm_agp_uninit(); - drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS); - dev->agp = NULL; - } -#endif -} - -module_init(tdfx_init); -module_exit(tdfx_cleanup); - - -int tdfx_version(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg) -{ - drm_version_t version; - int len; - - if (copy_from_user(&version, - (drm_version_t *)arg, - sizeof(version))) - return -EFAULT; - -#define DRM_COPY(name,value) \ - len = strlen(value); \ - if (len > name##_len) len = name##_len; \ - name##_len = strlen(value); \ - if (len && name) { \ - if (copy_to_user(name, value, len)) \ - return -EFAULT; \ - } - - version.version_major = TDFX_MAJOR; - version.version_minor = TDFX_MINOR; - version.version_patchlevel = TDFX_PATCHLEVEL; - - DRM_COPY(version.name, TDFX_NAME); - DRM_COPY(version.date, TDFX_DATE); - DRM_COPY(version.desc, TDFX_DESC); - - if (copy_to_user((drm_version_t *)arg, - &version, - sizeof(version))) - return -EFAULT; - return 0; -} - -int tdfx_open(struct inode *inode, struct file *filp) -{ - drm_device_t *dev = &tdfx_device; - int retcode = 0; - - DRM_DEBUG("open_count = %d\n", dev->open_count); - if (!(retcode = drm_open_helper(inode, filp, dev))) { -#if LINUX_VERSION_CODE < 0x020333 - MOD_INC_USE_COUNT; /* Needed before Linux 2.3.51 */ -#endif - atomic_inc(&dev->total_open); - spin_lock(&dev->count_lock); - if (!dev->open_count++) { - spin_unlock(&dev->count_lock); - return tdfx_setup(dev); - } - spin_unlock(&dev->count_lock); - } - return retcode; -} - -int tdfx_release(struct inode *inode, struct file *filp) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev; - int retcode = 0; - - lock_kernel(); - dev = priv->dev; - - DRM_DEBUG("open_count = %d\n", dev->open_count); - if (!(retcode = drm_release(inode, filp))) { -#if LINUX_VERSION_CODE < 0x020333 - MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */ -#endif - atomic_inc(&dev->total_close); - spin_lock(&dev->count_lock); - if (!--dev->open_count) { - if (atomic_read(&dev->ioctl_count) || dev->blocked) { - DRM_ERROR("Device busy: %d %d\n", - atomic_read(&dev->ioctl_count), - dev->blocked); - spin_unlock(&dev->count_lock); - unlock_kernel(); - return -EBUSY; - } - spin_unlock(&dev->count_lock); - unlock_kernel(); - return tdfx_takedown(dev); - } - spin_unlock(&dev->count_lock); - } - - unlock_kernel(); - return retcode; -} - -/* tdfx_ioctl is called whenever a process performs an ioctl on /dev/drm. */ - -int tdfx_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg) -{ - int nr = DRM_IOCTL_NR(cmd); - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - int retcode = 0; - drm_ioctl_desc_t *ioctl; - drm_ioctl_t *func; - - atomic_inc(&dev->ioctl_count); - atomic_inc(&dev->total_ioctl); - ++priv->ioctl_count; - - DRM_DEBUG("pid = %d, cmd = 0x%02x, nr = 0x%02x, dev 0x%x, auth = %d\n", - current->pid, cmd, nr, dev->device, priv->authenticated); - - if (nr >= TDFX_IOCTL_COUNT) { - retcode = -EINVAL; - } else { - ioctl = &tdfx_ioctls[nr]; - func = ioctl->func; - - if (!func) { - DRM_DEBUG("no function\n"); - retcode = -EINVAL; - } else if ((ioctl->root_only && !capable(CAP_SYS_ADMIN)) - || (ioctl->auth_needed && !priv->authenticated)) { - retcode = -EACCES; - } else { - retcode = (func)(inode, filp, cmd, arg); - } - } - - atomic_dec(&dev->ioctl_count); - return retcode; -} - -int tdfx_lock(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - DECLARE_WAITQUEUE(entry, current); - int ret = 0; - drm_lock_t lock; -#if DRM_DMA_HISTOGRAM - cycles_t start; - - dev->lck_start = start = get_cycles(); -#endif - - if (copy_from_user(&lock, (drm_lock_t *)arg, sizeof(lock))) - return -EFAULT; - - if (lock.context == DRM_KERNEL_CONTEXT) { - DRM_ERROR("Process %d using kernel context %d\n", - current->pid, lock.context); - return -EINVAL; - } - - DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n", - lock.context, current->pid, dev->lock.hw_lock->lock, - lock.flags); - -#if 0 - /* dev->queue_count == 0 right now for - tdfx. FIXME? */ - if (lock.context < 0 || lock.context >= dev->queue_count) - return -EINVAL; -#endif - - if (!ret) { -#if 0 - if (_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock) - != lock.context) { - long j = jiffies - dev->lock.lock_time; - - if (lock.context == tdfx_res_ctx.handle && - j >= 0 && j < DRM_LOCK_SLICE) { - /* Can't take lock if we just had it and - there is contention. */ - DRM_DEBUG("%d (pid %d) delayed j=%d dev=%d jiffies=%d\n", - lock.context, current->pid, j, - dev->lock.lock_time, jiffies); - current->state = TASK_INTERRUPTIBLE; - current->policy |= SCHED_YIELD; - schedule_timeout(DRM_LOCK_SLICE-j); - DRM_DEBUG("jiffies=%d\n", jiffies); - } - } -#endif - add_wait_queue(&dev->lock.lock_queue, &entry); - for (;;) { - current->state = TASK_INTERRUPTIBLE; - if (!dev->lock.hw_lock) { - /* Device has been unregistered */ - ret = -EINTR; - break; - } - if (drm_lock_take(&dev->lock.hw_lock->lock, - lock.context)) { - dev->lock.pid = current->pid; - dev->lock.lock_time = jiffies; - atomic_inc(&dev->total_locks); - break; /* Got lock */ - } - - /* Contention */ - atomic_inc(&dev->total_sleeps); -#if 1 - current->policy |= SCHED_YIELD; -#endif - schedule(); - if (signal_pending(current)) { - ret = -ERESTARTSYS; - break; - } - } - current->state = TASK_RUNNING; - remove_wait_queue(&dev->lock.lock_queue, &entry); - } - -#if 0 - if (!ret && dev->last_context != lock.context && - lock.context != tdfx_res_ctx.handle && - dev->last_context != tdfx_res_ctx.handle) { - add_wait_queue(&dev->context_wait, &entry); - current->state = TASK_INTERRUPTIBLE; - /* PRE: dev->last_context != lock.context */ - tdfx_context_switch(dev, dev->last_context, lock.context); - /* POST: we will wait for the context - switch and will dispatch on a later call - when dev->last_context == lock.context - NOTE WE HOLD THE LOCK THROUGHOUT THIS - TIME! */ - current->policy |= SCHED_YIELD; - schedule(); - current->state = TASK_RUNNING; - remove_wait_queue(&dev->context_wait, &entry); - if (signal_pending(current)) { - ret = -EINTR; - } else if (dev->last_context != lock.context) { - DRM_ERROR("Context mismatch: %d %d\n", - dev->last_context, lock.context); - } - } -#endif - - if (!ret) { - sigemptyset(&dev->sigmask); - sigaddset(&dev->sigmask, SIGSTOP); - sigaddset(&dev->sigmask, SIGTSTP); - sigaddset(&dev->sigmask, SIGTTIN); - sigaddset(&dev->sigmask, SIGTTOU); - dev->sigdata.context = lock.context; - dev->sigdata.lock = dev->lock.hw_lock; - block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask); - - if (lock.flags & _DRM_LOCK_READY) { - /* Wait for space in DMA/FIFO */ - } - if (lock.flags & _DRM_LOCK_QUIESCENT) { - /* Make hardware quiescent */ -#if 0 - tdfx_quiescent(dev); -#endif - } - } - -#if LINUX_VERSION_CODE < 0x020400 - if (lock.context != tdfx_res_ctx.handle) { - current->counter = 5; - current->priority = DEF_PRIORITY/4; - } -#endif - DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock"); - -#if DRM_DMA_HISTOGRAM - atomic_inc(&dev->histo.lacq[drm_histogram_slot(get_cycles() - start)]); -#endif - - return ret; -} - - -int tdfx_unlock(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg) -{ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - drm_lock_t lock; - - if (copy_from_user(&lock, (drm_lock_t *)arg, sizeof(lock))) - return -EFAULT; - - if (lock.context == DRM_KERNEL_CONTEXT) { - DRM_ERROR("Process %d using kernel context %d\n", - current->pid, lock.context); - return -EINVAL; - } - - DRM_DEBUG("%d frees lock (%d holds)\n", - lock.context, - _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); - atomic_inc(&dev->total_unlocks); - if (_DRM_LOCK_IS_CONT(dev->lock.hw_lock->lock)) - atomic_inc(&dev->total_contends); - drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT); - /* FIXME: Try to send data to card here */ - if (!dev->context_flag) { - if (drm_lock_free(dev, &dev->lock.hw_lock->lock, - DRM_KERNEL_CONTEXT)) { - DRM_ERROR("\n"); - } - } - -#if LINUX_VERSION_CODE < 0x020400 - if (lock.context != tdfx_res_ctx.handle) { - current->counter = 5; - current->priority = DEF_PRIORITY; - } -#endif - unblock_all_signals(); - return 0; -} +#define DRIVER_AUTHOR "VA Linux Systems Inc." + +#define DRIVER_NAME "tdfx" +#define DRIVER_DESC "3dfx Banshee/Voodoo3+" +#define DRIVER_DATE "20010214" + +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 0 +#define DRIVER_PATCHLEVEL 0 + +#include "drm_drv.h" + + +#include "drm_agpsupport.h" +#include "drm_auth.h" +#include "drm_bufs.h" +#include "drm_context.h" +#include "drm_dma.h" +#include "drm_drawable.h" +#include "drm_fops.h" +#include "drm_init.h" +#include "drm_ioctl.h" +#include "drm_lock.h" +#include "drm_memory.h" +#include "drm_proc.h" +#include "drm_vm.h" +#include "drm_stub.h" |