Remove more gamma DMA code. This isn't all of it, but it's a major portion.

6 files changed, 13 insertions, 762 deletions

diff --git a/bsd-core/drmP.h b/bsd-core/drmP.h
index 0957c0f1..9b8dd57e 100644
--- a/bsd-core/drmP.h
+++ b/bsd-core/drmP.h
@@ -476,10 +476,6 @@ extern int	     DRM(lock_transfer)(drm_device_t *dev,
 extern int	     DRM(lock_free)(drm_device_t *dev,
 				    __volatile__ unsigned int *lock,
 				    unsigned int context);
-extern int	     DRM(flush_unblock)(drm_device_t *dev, int context,
-					drm_lock_flags_t flags);
-extern int	     DRM(flush_block_and_flush)(drm_device_t *dev, int context,
-						drm_lock_flags_t flags);
 
 				/* Buffer management support (drm_bufs.h) */
 extern int	     DRM(order)( unsigned long size );
@@ -490,15 +486,6 @@ extern int	     DRM(dma_setup)(drm_device_t *dev);
 extern void	     DRM(dma_takedown)(drm_device_t *dev);
 extern void	     DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf);
 extern void	     DRM(reclaim_buffers)(drm_device_t *dev, DRMFILE filp);
-#if __HAVE_OLD_DMA
-/* GH: This is a dirty hack for now...
- */
-extern void	     DRM(clear_next_buffer)(drm_device_t *dev);
-extern int	     DRM(select_queue)(drm_device_t *dev,
-				       void (*wrapper)(unsigned long));
-extern int	     DRM(dma_enqueue)(drm_device_t *dev, drm_dma_t *dma);
-extern int	     DRM(dma_get_buffers)(drm_device_t *dev, drm_dma_t *dma);
-#endif
 #if __HAVE_DMA_IRQ
 extern int           DRM(irq_install)( drm_device_t *dev, int irq );
 extern int           DRM(irq_uninstall)( drm_device_t *dev );
@@ -568,6 +555,7 @@ extern int		DRM(setunique)(DRM_IOCTL_ARGS);
 extern int		DRM(getmap)(DRM_IOCTL_ARGS);
 extern int		DRM(getclient)(DRM_IOCTL_ARGS);
 extern int		DRM(getstats)(DRM_IOCTL_ARGS);
+extern int		DRM(noop)(DRM_IOCTL_ARGS);
 
 /* Context IOCTL support (drm_context.h) */
 extern int		DRM(resctx)(DRM_IOCTL_ARGS);
@@ -588,11 +576,6 @@ extern int		DRM(rmdraw)(DRM_IOCTL_ARGS);
 extern int		DRM(getmagic)(DRM_IOCTL_ARGS);
 extern int		DRM(authmagic)(DRM_IOCTL_ARGS);
 
-/* Locking IOCTL support (drm_lock.h) */
-extern int		DRM(block)(DRM_IOCTL_ARGS);
-extern int		DRM(unblock)(DRM_IOCTL_ARGS);
-extern int		DRM(finish)(DRM_IOCTL_ARGS);
-
 /* Buffer management support (drm_bufs.h) */
 extern int		DRM(addmap)(DRM_IOCTL_ARGS);
 extern int		DRM(rmmap)(DRM_IOCTL_ARGS);
diff --git a/bsd-core/drm_context.c b/bsd-core/drm_context.c
index c7823ac1..2293a806 100644
--- a/bsd-core/drm_context.c
+++ b/bsd-core/drm_context.c
@@ -32,7 +32,9 @@
 
 #include "drmP.h"
 
-#if __HAVE_CTX_BITMAP
+#if !__HAVE_CTX_BITMAP
+#error "__HAVE_CTX_BITMAP must be defined"
+#endif
 
 /* ================================================================
  * Context bitmap support
@@ -345,347 +347,3 @@ int DRM(rmctx)( DRM_IOCTL_ARGS )
 
 	return 0;
 }
-
-
-#else /* __HAVE_CTX_BITMAP */
-
-/* ================================================================
- * Old-style context support
- */
-
-
-int DRM(context_switch)(drm_device_t *dev, int old, int new)
-{
-	drm_queue_t *q;
-
-#if 0
-	atomic_inc(&dev->total_ctx);
-#endif
-
-	if (test_and_set_bit(0, &dev->context_flag)) {
-		DRM_ERROR("Reentering -- FIXME\n");
-		return DRM_ERR(EBUSY);
-	}
-
-	DRM_DEBUG("Context switch from %d to %d\n", old, new);
-
-	if (new >= dev->queue_count) {
-		clear_bit(0, &dev->context_flag);
-		return DRM_ERR(EINVAL);
-	}
-
-	if (new == dev->last_context) {
-		clear_bit(0, &dev->context_flag);
-		return 0;
-	}
-
-	q = dev->queuelist[new];
-	atomic_inc(&q->use_count);
-	if (atomic_read(&q->use_count) == 1) {
-		atomic_dec(&q->use_count);
-		clear_bit(0, &dev->context_flag);
-		return DRM_ERR(EINVAL);
-	}
-
-	atomic_dec(&q->use_count);
-
-	return 0;
-}
-
-int DRM(context_switch_complete)(drm_device_t *dev, int new)
-{
-	drm_device_dma_t *dma = dev->dma;
-
-	dev->last_context = new;  /* PRE/POST: This is the _only_ writer. */
-	dev->last_switch  = jiffies;
-
-	if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
-		DRM_ERROR("Lock isn't held after context switch\n");
-	}
-
-	if (!dma || !(dma->next_buffer && dma->next_buffer->while_locked)) {
-		if (DRM(lock_free)(dev, &dev->lock.hw_lock->lock,
-				  DRM_KERNEL_CONTEXT)) {
-			DRM_ERROR("Cannot free lock\n");
-		}
-	}
-
-	clear_bit(0, &dev->context_flag);
-	DRM_WAKEUP_INT(&dev->context_wait);
-
-	return 0;
-}
-
-static int DRM(init_queue)(drm_device_t *dev, drm_queue_t *q, drm_ctx_t *ctx)
-{
-	DRM_DEBUG("\n");
-
-	if (atomic_read(&q->use_count) != 1
-	    || atomic_read(&q->finalization)
-	    || atomic_read(&q->block_count)) {
-		DRM_ERROR("New queue is already in use: u%ld f%ld b%ld\n",
-			  (unsigned long)atomic_read(&q->use_count),
-			  (unsigned long)atomic_read(&q->finalization),
-			  (unsigned long)atomic_read(&q->block_count));
-	}
-
-	atomic_set(&q->finalization,  0);
-	atomic_set(&q->block_count,   0);
-	atomic_set(&q->block_read,    0);
-	atomic_set(&q->block_write,   0);
-	atomic_set(&q->total_queued,  0);
-	atomic_set(&q->total_flushed, 0);
-	atomic_set(&q->total_locks,   0);
-
-	q->write_queue = 0;
-	q->read_queue = 0;
-	q->flush_queue = 0;
-
-	q->flags = ctx->flags;
-
-	DRM(waitlist_create)(&q->waitlist, dev->dma->buf_count);
-
-	return 0;
-}
-
-
-/* drm_alloc_queue:
-PRE: 1) dev->queuelist[0..dev->queue_count] is allocated and will not
-	disappear (so all deallocation must be done after IOCTLs are off)
-     2) dev->queue_count < dev->queue_slots
-     3) dev->queuelist[i].use_count == 0 and
-	dev->queuelist[i].finalization == 0 if i not in use
-POST: 1) dev->queuelist[i].use_count == 1
-      2) dev->queue_count < dev->queue_slots */
-
-static int DRM(alloc_queue)(drm_device_t *dev)
-{
-	int	    i;
-	drm_queue_t *queue;
-	int	    oldslots;
-	int	    newslots;
-				/* Check for a free queue */
-	for (i = 0; i < dev->queue_count; i++) {
-		atomic_inc(&dev->queuelist[i]->use_count);
-		if (atomic_read(&dev->queuelist[i]->use_count) == 1
-		    && !atomic_read(&dev->queuelist[i]->finalization)) {
-			DRM_DEBUG("%d (free)\n", i);
-			return i;
-		}
-		atomic_dec(&dev->queuelist[i]->use_count);
-	}
-				/* Allocate a new queue */
-	DRM_LOCK;
-
-	queue = gamma_alloc(sizeof(*queue), DRM_MEM_QUEUES);
-	memset(queue, 0, sizeof(*queue));
-	atomic_set(&queue->use_count, 1);
-
-	++dev->queue_count;
-	if (dev->queue_count >= dev->queue_slots) {
-		oldslots = dev->queue_slots * sizeof(*dev->queuelist);
-		if (!dev->queue_slots) dev->queue_slots = 1;
-		dev->queue_slots *= 2;
-		newslots = dev->queue_slots * sizeof(*dev->queuelist);
-
-		dev->queuelist = DRM(realloc)(dev->queuelist,
-					      oldslots,
-					      newslots,
-					      DRM_MEM_QUEUES);
-		if (!dev->queuelist) {
-			DRM_UNLOCK;
-			DRM_DEBUG("out of memory\n");
-			return DRM_ERR(ENOMEM);
-		}
-	}
-	dev->queuelist[dev->queue_count-1] = queue;
-
-	DRM_UNLOCK;
-	DRM_DEBUG("%d (new)\n", dev->queue_count - 1);
-	return dev->queue_count - 1;
-}
-
-int DRM(resctx)( DRM_IOCTL_ARGS )
-{
-	drm_ctx_res_t	res;
-	drm_ctx_t	ctx;
-	int		i;
-
-	DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
-	
-	DRM_COPY_FROM_USER_IOCTL( res, (drm_ctx_res_t *)data, sizeof(res) );
-
-	if (res.count >= DRM_RESERVED_CONTEXTS) {
-		memset(&ctx, 0, sizeof(ctx));
-		for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
-			ctx.handle = i;
-			if (DRM_COPY_TO_USER(&res.contexts[i],
-					 &i,
-					 sizeof(i)))
-				return DRM_ERR(EFAULT);
-		}
-	}
-	res.count = DRM_RESERVED_CONTEXTS;
-
-	DRM_COPY_TO_USER_IOCTL( (drm_ctx_res_t *)data, res, sizeof(res) );
-
-	return 0;
-}
-
-int DRM(addctx)( DRM_IOCTL_ARGS )
-{
-	DRM_DEVICE;
-	drm_ctx_t	ctx;
-
-	DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) );
-
-	if ((ctx.handle = DRM(alloc_queue)(dev)) == DRM_KERNEL_CONTEXT) {
-				/* Init kernel's context and get a new one. */
-		DRM(init_queue)(dev, dev->queuelist[ctx.handle], &ctx);
-		ctx.handle = DRM(alloc_queue)(dev);
-	}
-	DRM(init_queue)(dev, dev->queuelist[ctx.handle], &ctx);
-	DRM_DEBUG("%d\n", ctx.handle);
-	
-	DRM_COPY_TO_USER_IOCTL( (drm_ctx_t *)data, ctx, sizeof(ctx) );
-
-	return 0;
-}
-
-int DRM(modctx)( DRM_IOCTL_ARGS )
-{
-	DRM_DEVICE;
-	drm_ctx_t	ctx;
-	drm_queue_t	*q;
-
-	DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) );
-
-	DRM_DEBUG("%d\n", ctx.handle);
-
-	if (ctx.handle < 0 || ctx.handle >= dev->queue_count) 
-		return DRM_ERR(EINVAL);
-	q = dev->queuelist[ctx.handle];
-
-	atomic_inc(&q->use_count);
-	if (atomic_read(&q->use_count) == 1) {
-				/* No longer in use */
-		atomic_dec(&q->use_count);
-		return DRM_ERR(EINVAL);
-	}
-
-	if (DRM_BUFCOUNT(&q->waitlist)) {
-		atomic_dec(&q->use_count);
-		return DRM_ERR(EBUSY);
-	}
-
-	q->flags = ctx.flags;
-
-	atomic_dec(&q->use_count);
-	return 0;
-}
-
-int DRM(getctx)( DRM_IOCTL_ARGS )
-{
-	DRM_DEVICE;
-	drm_ctx_t	ctx;
-	drm_queue_t	*q;
-
-	DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) );
-
-	DRM_DEBUG("%d\n", ctx.handle);
-
-	if (ctx.handle >= dev->queue_count) 
-		return DRM_ERR(EINVAL);
-	q = dev->queuelist[ctx.handle];
-
-	atomic_inc(&q->use_count);
-	if (atomic_read(&q->use_count) == 1) {
-				/* No longer in use */
-		atomic_dec(&q->use_count);
-		return DRM_ERR(EINVAL);
-	}
-
-	ctx.flags = q->flags;
-	atomic_dec(&q->use_count);
-
-	DRM_COPY_TO_USER_IOCTL( (drm_ctx_t *)data, ctx, sizeof(ctx) );
-
-	return 0;
-}
-
-int DRM(switchctx)( DRM_IOCTL_ARGS )
-{
-	DRM_DEVICE;
-	drm_ctx_t	ctx;
-
-	DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) );
-
-	DRM_DEBUG("%d\n", ctx.handle);
-	return DRM(context_switch)(dev, dev->last_context, ctx.handle);
-}
-
-int DRM(newctx)( DRM_IOCTL_ARGS )
-{
-	DRM_DEVICE;
-	drm_ctx_t	ctx;
-
-	DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) );
-
-	DRM_DEBUG("%d\n", ctx.handle);
-	DRM(context_switch_complete)(dev, ctx.handle);
-
-	return 0;
-}
-
-int DRM(rmctx)( DRM_IOCTL_ARGS )
-{
-	DRM_DEVICE;
-	drm_ctx_t	ctx;
-	drm_queue_t	*q;
-	drm_buf_t	*buf;
-
-	DRM_COPY_FROM_USER_IOCTL( ctx, (drm_ctx_t *)data, sizeof(ctx) );
-
-	DRM_DEBUG("%d\n", ctx.handle);
-
-	if (ctx.handle >= dev->queue_count) return DRM_ERR(EINVAL);
-	q = dev->queuelist[ctx.handle];
-
-	atomic_inc(&q->use_count);
-	if (atomic_read(&q->use_count) == 1) {
-				/* No longer in use */
-		atomic_dec(&q->use_count);
-		return DRM_ERR(EINVAL);
-	}
-
-	atomic_inc(&q->finalization); /* Mark queue in finalization state */
-	atomic_sub(2, &q->use_count); /* Mark queue as unused (pending
-					 finalization) */
-
-	while (test_and_set_bit(0, &dev->interrupt_flag)) {
-		static int never;
-		int retcode;
-		retcode = tsleep(&never, PZERO|PCATCH, "never", 1);
-		if (retcode)
-			return retcode;
-	}
-				/* Remove queued buffers */
-	while ((buf = DRM(waitlist_get)(&q->waitlist))) {
-		DRM(free_buffer)(dev, buf);
-	}
-	clear_bit(0, &dev->interrupt_flag);
-
-				/* Wakeup blocked processes */
-	wakeup( &q->block_read );
-	wakeup( &q->block_write );
-	DRM_WAKEUP_INT( &q->flush_queue );
-				/* Finalization over.  Queue is made
-				   available when both use_count and
-				   finalization become 0, which won't
-				   happen until all the waiting processes
-				   stop waiting. */
-	atomic_dec(&q->finalization);
-	return 0;
-}
-
-#endif /* __HAVE_CTX_BITMAP */
diff --git a/bsd-core/drm_dma.c b/bsd-core/drm_dma.c
index 86e37b08..27ce05e3 100644
--- a/bsd-core/drm_dma.c
+++ b/bsd-core/drm_dma.c
@@ -171,271 +171,6 @@ void DRM(reclaim_buffers)(drm_device_t *dev, DRMFILE filp)
 #endif
 
 
-/* GH: This is a big hack for now...
- */
-#if __HAVE_OLD_DMA
-
-void DRM(clear_next_buffer)(drm_device_t *dev)
-{
-	drm_device_dma_t *dma = dev->dma;
-
-	dma->next_buffer = NULL;
-	if (dma->next_queue && !DRM_BUFCOUNT(&dma->next_queue->waitlist)) {
-		DRM_WAKEUP_INT(&dma->next_queue->flush_queue);
-	}
-	dma->next_queue	 = NULL;
-}
-
-int DRM(select_queue)(drm_device_t *dev, void (*wrapper)(unsigned long))
-{
-	int	   i;
-	int	   candidate = -1;
-	int	   j	     = jiffies;
-
-	if (!dev) {
-		DRM_ERROR("No device\n");
-		return -1;
-	}
-	if (!dev->queuelist || !dev->queuelist[DRM_KERNEL_CONTEXT]) {
-				/* This only happens between the time the
-				   interrupt is initialized and the time
-				   the queues are initialized. */
-		return -1;
-	}
-
-				/* Doing "while locked" DMA? */
-	if (DRM_WAITCOUNT(dev, DRM_KERNEL_CONTEXT)) {
-		return DRM_KERNEL_CONTEXT;
-	}
-
-				/* If there are buffers on the last_context
-				   queue, and we have not been executing
-				   this context very long, continue to
-				   execute this context. */
-	if (dev->last_switch <= j
-	    && dev->last_switch + DRM_TIME_SLICE > j
-	    && DRM_WAITCOUNT(dev, dev->last_context)) {
-		return dev->last_context;
-	}
-
-				/* Otherwise, find a candidate */
-	for (i = dev->last_checked + 1; i < dev->queue_count; i++) {
-		if (DRM_WAITCOUNT(dev, i)) {
-			candidate = dev->last_checked = i;
-			break;
-		}
-	}
-
-	if (candidate < 0) {
-		for (i = 0; i < dev->queue_count; i++) {
-			if (DRM_WAITCOUNT(dev, i)) {
-				candidate = dev->last_checked = i;
-				break;
-			}
-		}
-	}
-
-	if (wrapper
-	    && candidate >= 0
-	    && candidate != dev->last_context
-	    && dev->last_switch <= j
-	    && dev->last_switch + DRM_TIME_SLICE > j) {
-		int s = splclock();
-		if (dev->timer.c_time != dev->last_switch + DRM_TIME_SLICE) {
-			callout_reset(&dev->timer,
-				      dev->last_switch + DRM_TIME_SLICE - j,
-				      (void (*)(void *))wrapper,
-				      dev);
-		}
-		splx(s);
-		return -1;
-	}
-
-	return candidate;
-}
-
-
-int DRM(dma_enqueue)(drm_device_t *dev, drm_dma_t *d)
-{
-	int		  i;
-	drm_queue_t	  *q;
-	drm_buf_t	  *buf;
-	int		  idx;
-	int		  while_locked = 0;
-	drm_device_dma_t  *dma = dev->dma;
-	int		  error;
-
-	DRM_DEBUG("%d\n", d->send_count);
-
-	if (d->flags & _DRM_DMA_WHILE_LOCKED) {
-		int context = dev->lock.hw_lock->lock;
-
-		if (!_DRM_LOCK_IS_HELD(context)) {
-			DRM_ERROR("No lock held during \"while locked\""
-				  " request\n");
-			return DRM_ERR(EINVAL);
-		}
-		if (d->context != _DRM_LOCKING_CONTEXT(context)
-		    && _DRM_LOCKING_CONTEXT(context) != DRM_KERNEL_CONTEXT) {
-			DRM_ERROR("Lock held by %d while %d makes"
-				  " \"while locked\" request\n",
-				  _DRM_LOCKING_CONTEXT(context),
-				  d->context);
-			return DRM_ERR(EINVAL);
-		}
-		q = dev->queuelist[DRM_KERNEL_CONTEXT];
-		while_locked = 1;
-	} else {
-		q = dev->queuelist[d->context];
-	}
-
-
-	atomic_inc(&q->use_count);
-	if (atomic_read(&q->block_write)) {
-		atomic_inc(&q->block_count);
-		for (;;) {
-			if (!atomic_read(&q->block_write)) break;
-			error = tsleep(&q->block_write, PZERO|PCATCH,
-				       "dmawr", 0);
-			if (error) {
-				atomic_dec(&q->use_count);
-				return error;
-			}
-		}
-		atomic_dec(&q->block_count);
-	}
-
-	for (i = 0; i < d->send_count; i++) {
-		idx = d->send_indices[i];
-		if (idx < 0 || idx >= dma->buf_count) {
-			atomic_dec(&q->use_count);
-			DRM_ERROR("Index %d (of %d max)\n",
-				  d->send_indices[i], dma->buf_count - 1);
-			return DRM_ERR(EINVAL);
-		}
-		buf = dma->buflist[ idx ];
-		if (buf->pid != DRM_CURRENTPID) {
-			atomic_dec(&q->use_count);
-			DRM_ERROR("Process %d using buffer owned by %d\n",
-				  DRM_CURRENTPID, buf->pid);
-			return DRM_ERR(EINVAL);
-		}
-		if (buf->list != DRM_LIST_NONE) {
-			atomic_dec(&q->use_count);
-			DRM_ERROR("Process %d using buffer %d on list %d\n",
-				  DRM_CURRENTPID, buf->idx, buf->list);
-		}
-		buf->used	  = d->send_sizes[i];
-		buf->while_locked = while_locked;
-		buf->context	  = d->context;
-		if (!buf->used) {
-			DRM_ERROR("Queueing 0 length buffer\n");
-		}
-		if (buf->pending) {
-			atomic_dec(&q->use_count);
-			DRM_ERROR("Queueing pending buffer:"
-				  " buffer %d, offset %d\n",
-				  d->send_indices[i], i);
-			return DRM_ERR(EINVAL);
-		}
-		if (buf->waiting) {
-			atomic_dec(&q->use_count);
-			DRM_ERROR("Queueing waiting buffer:"
-				  " buffer %d, offset %d\n",
-				  d->send_indices[i], i);
-			return DRM_ERR(EINVAL);
-		}
-		buf->waiting = 1;
-		if (atomic_read(&q->use_count) == 1
-		    || atomic_read(&q->finalization)) {
-			DRM(free_buffer)(dev, buf);
-		} else {
-			DRM(waitlist_put)(&q->waitlist, buf);
-			atomic_inc(&q->total_queued);
-		}
-	}
-	atomic_dec(&q->use_count);
-
-	return 0;
-}
-
-static int DRM(dma_get_buffers_of_order)(drm_device_t *dev, drm_dma_t *d,
-					 int order)
-{
-	int		  i;
-	drm_buf_t	  *buf;
-	drm_device_dma_t  *dma = dev->dma;
-
-	for (i = d->granted_count; i < d->request_count; i++) {
-		buf = DRM(freelist_get)(&dma->bufs[order].freelist,
-					d->flags & _DRM_DMA_WAIT);
-		if (!buf) break;
-		if (buf->pending || buf->waiting) {
-			DRM_ERROR("Free buffer %d in use by %d (w%d, p%d)\n",
-				  buf->idx,
-				  buf->pid,
-				  buf->waiting,
-				  buf->pending);
-		}
-		buf->pid     = DRM_CURRENTPID;
-		if (DRM_COPY_TO_USER(&d->request_indices[i],
-				 &buf->idx,
-				 sizeof(buf->idx)))
-			return DRM_ERR(EFAULT);
-
-		if (DRM_COPY_TO_USER(&d->request_sizes[i],
-				 &buf->total,
-				 sizeof(buf->total)))
-			return DRM_ERR(EFAULT);
-
-		++d->granted_count;
-	}
-	return 0;
-}
-
-
-int DRM(dma_get_buffers)(drm_device_t *dev, drm_dma_t *dma)
-{
-	int		  order;
-	int		  retcode = 0;
-	int		  tmp_order;
-
-	order = DRM(order)(dma->request_size);
-
-	dma->granted_count = 0;
-	retcode		   = DRM(dma_get_buffers_of_order)(dev, dma, order);
-
-	if (dma->granted_count < dma->request_count
-	    && (dma->flags & _DRM_DMA_SMALLER_OK)) {
-		for (tmp_order = order - 1;
-		     !retcode
-			     && dma->granted_count < dma->request_count
-			     && tmp_order >= DRM_MIN_ORDER;
-		     --tmp_order) {
-
-			retcode = DRM(dma_get_buffers_of_order)(dev, dma,
-								tmp_order);
-		}
-	}
-
-	if (dma->granted_count < dma->request_count
-	    && (dma->flags & _DRM_DMA_LARGER_OK)) {
-		for (tmp_order = order + 1;
-		     !retcode
-			     && dma->granted_count < dma->request_count
-			     && tmp_order <= DRM_MAX_ORDER;
-		     ++tmp_order) {
-
-			retcode = DRM(dma_get_buffers_of_order)(dev, dma,
-								tmp_order);
-		}
-	}
-	return 0;
-}
-
-#endif /* __HAVE_OLD_DMA */
-
-
 #if __HAVE_DMA_IRQ
 
 int DRM(irq_install)( drm_device_t *dev, int irq )
diff --git a/bsd-core/drm_drv.c b/bsd-core/drm_drv.c
index 1006e247..f1184906 100644
--- a/bsd-core/drm_drv.c
+++ b/bsd-core/drm_drv.c
@@ -68,12 +68,6 @@
 #ifndef __HAVE_DMA_SCHEDULE
 #define __HAVE_DMA_SCHEDULE		0
 #endif
-#ifndef __HAVE_DMA_FLUSH
-#define __HAVE_DMA_FLUSH		0
-#endif
-#ifndef __HAVE_DMA_READY
-#define __HAVE_DMA_READY		0
-#endif
 #ifndef __HAVE_DMA_QUIESCENT
 #define __HAVE_DMA_QUIESCENT		0
 #endif
@@ -150,8 +144,8 @@ static drm_ioctl_desc_t		  DRM(ioctls)[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)]     = { DRM(getstats),    0, 0 },
 
 	[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_BLOCK)]         = { DRM(noop),        1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)]       = { DRM(noop),        1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)]    = { DRM(authmagic),   1, 1 },
 
 	[DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)]       = { DRM(addmap),      1, 1 },
@@ -175,7 +169,7 @@ static drm_ioctl_desc_t		  DRM(ioctls)[] = {
 
 	[DRM_IOCTL_NR(DRM_IOCTL_LOCK)]	        = { DRM(lock),        1, 0 },
 	[DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)]        = { DRM(unlock),      1, 0 },
-	[DRM_IOCTL_NR(DRM_IOCTL_FINISH)]        = { DRM(finish),      1, 0 },
+	[DRM_IOCTL_NR(DRM_IOCTL_FINISH)]        = { DRM(noop),        1, 0 },
 
 #if __HAVE_DMA
 	[DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)]      = { DRM(addbufs),     1, 1 },
@@ -514,12 +508,6 @@ static int DRM(setup)( drm_device_t *dev )
 
 	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.
-	 */
 	DRIVER_POSTSETUP();
 	return 0;
 }
@@ -1112,9 +1100,6 @@ int DRM(lock)( DRM_IOCTL_ARGS )
 	q = dev->queuelist[lock.context];
 #endif
 
-#if __HAVE_DMA_FLUSH
-	ret = DRM(flush_block_and_flush)( dev, lock.context, lock.flags );
-#endif
         if ( !ret ) {
                 for (;;) {
                         if ( !dev->lock.hw_lock ) {
@@ -1140,18 +1125,9 @@ int DRM(lock)( DRM_IOCTL_ARGS )
                 }
         }
 
-#if __HAVE_DMA_FLUSH
-	DRM(flush_unblock)( dev, lock.context, lock.flags ); /* cleanup phase */
-#endif
-
         if ( !ret ) {
 		/* FIXME: Add signal blocking here */
 
-#if __HAVE_DMA_READY
-                if ( lock.flags & _DRM_LOCK_READY ) {
-			DRIVER_DMA_READY();
-		}
-#endif
 #if __HAVE_DMA_QUIESCENT
                 if ( lock.flags & _DRM_LOCK_QUIESCENT ) {
 			DRIVER_DMA_QUIESCENT();
diff --git a/bsd-core/drm_ioctl.c b/bsd-core/drm_ioctl.c
index bf0083d9..1e2771e9 100644
--- a/bsd-core/drm_ioctl.c
+++ b/bsd-core/drm_ioctl.c
@@ -230,3 +230,9 @@ int DRM(getstats)( DRM_IOCTL_ARGS )
 
 	return 0;
 }
+
+int DRM(noop)(DRM_IOCTL_ARGS)
+{
+	DRM_DEBUG("\n");
+	return 0;
+}
diff --git a/bsd-core/drm_lock.c b/bsd-core/drm_lock.c
index a859b178..20ad4bff 100644
--- a/bsd-core/drm_lock.c
+++ b/bsd-core/drm_lock.c
@@ -33,18 +33,6 @@
 
 #include "drmP.h"
 
-int DRM(block)( DRM_IOCTL_ARGS )
-{
-	DRM_DEBUG("\n");
-	return 0;
-}
-
-int DRM(unblock)( DRM_IOCTL_ARGS )
-{
-	DRM_DEBUG("\n");
-	return 0;
-}
-
 int DRM(lock_take)(__volatile__ unsigned int *lock, unsigned int context)
 {
 	unsigned int old, new;
@@ -107,98 +95,3 @@ int DRM(lock_free)(drm_device_t *dev,
 	return 0;
 }
 
-static int DRM(flush_queue)(drm_device_t *dev, int context)
-{
-	int               error;
-	int		  ret	= 0;
-	drm_queue_t	  *q	= dev->queuelist[context];
-
-	DRM_DEBUG("\n");
-
-	atomic_inc(&q->use_count);
-	if (atomic_read(&q->use_count) > 1) {
-		atomic_inc(&q->block_write);
-		atomic_inc(&q->block_count);
-		error = tsleep((void *)&q->flush_queue, PZERO|PCATCH, "drmfq", 0);
-		if (error)
-			return error;
-		atomic_dec(&q->block_count);
-	}
-	atomic_dec(&q->use_count);
-
-				/* NOTE: block_write is still incremented!
-				   Use drm_flush_unlock_queue to decrement. */
-	return ret;
-}
-
-static int DRM(flush_unblock_queue)(drm_device_t *dev, int context)
-{
-	drm_queue_t	  *q	= dev->queuelist[context];
-
-	DRM_DEBUG("\n");
-
-	atomic_inc(&q->use_count);
-	if (atomic_read(&q->use_count) > 1) {
-		if (atomic_read(&q->block_write)) {
-			atomic_dec(&q->block_write);
-			DRM_WAKEUP_INT((void *)&q->write_queue);
-		}
-	}
-	atomic_dec(&q->use_count);
-	return 0;
-}
-
-int DRM(flush_block_and_flush)(drm_device_t *dev, int context,
-			       drm_lock_flags_t flags)
-{
-	int ret = 0;
-	int i;
-
-	DRM_DEBUG("\n");
-
-	if (flags & _DRM_LOCK_FLUSH) {
-		ret = DRM(flush_queue)(dev, DRM_KERNEL_CONTEXT);
-		if (!ret) ret = DRM(flush_queue)(dev, context);
-	}
-	if (flags & _DRM_LOCK_FLUSH_ALL) {
-		for (i = 0; !ret && i < dev->queue_count; i++) {
-			ret = DRM(flush_queue)(dev, i);
-		}
-	}
-	return ret;
-}
-
-int DRM(flush_unblock)(drm_device_t *dev, int context, drm_lock_flags_t flags)
-{
-	int ret = 0;
-	int i;
-
-	DRM_DEBUG("\n");
-
-	if (flags & _DRM_LOCK_FLUSH) {
-		ret = DRM(flush_unblock_queue)(dev, DRM_KERNEL_CONTEXT);
-		if (!ret) ret = DRM(flush_unblock_queue)(dev, context);
-	}
-	if (flags & _DRM_LOCK_FLUSH_ALL) {
-		for (i = 0; !ret && i < dev->queue_count; i++) {
-			ret = DRM(flush_unblock_queue)(dev, i);
-		}
-	}
-
-	return ret;
-}
-
-int DRM(finish)( DRM_IOCTL_ARGS )
-{
-	DRM_DEVICE;
-	int		  ret	  = 0;
-	drm_lock_t	  lock;
-
-	DRM_DEBUG("\n");
-
-	DRM_COPY_FROM_USER_IOCTL( lock, (drm_lock_t *)data, sizeof(lock) );
-
-	ret = DRM(flush_block_and_flush)(dev, lock.context, lock.flags);
-	DRM(flush_unblock)(dev, lock.context, lock.flags);
-	return ret;
-}