Update the DRM to the latest from DRI CVS. Includes some bugfixes and removal

of the infrastructure for the gamma driver which was removed a while back.
The DRM_LINUX option is removed because the handler is now provided by the
linux compat code itself.

1 files changed, 3 insertions, 349 deletions

diff --git a/sys/dev/drm/drm_dma.h b/sys/dev/drm/drm_dma.h
index 7ae0f5e..99cabba 100644
--- a/sys/dev/drm/drm_dma.h
+++ b/sys/dev/drm/drm_dma.h
@@ -98,9 +98,6 @@ void DRM(dma_takedown)(drm_device_t *dev)
 				  dma->bufs[i].buf_count *
 				  sizeof(*dma->bufs[0].buflist),
 				  DRM_MEM_BUFS);
-#if __HAVE_DMA_FREELIST
-		   	DRM(freelist_destroy)(&dma->bufs[i].freelist);
-#endif
 		}
 	}
 
@@ -120,99 +117,24 @@ void DRM(dma_takedown)(drm_device_t *dev)
 }
 
 
-#if __HAVE_DMA_HISTOGRAM
-/* This is slow, but is useful for debugging. */
-int DRM(histogram_slot)(unsigned long count)
-{
-	int value = DRM_DMA_HISTOGRAM_INITIAL;
-	int slot;
-
-	for (slot = 0;
-	     slot < DRM_DMA_HISTOGRAM_SLOTS;
-	     ++slot, value = DRM_DMA_HISTOGRAM_NEXT(value)) {
-		if (count < value) return slot;
-	}
-	return DRM_DMA_HISTOGRAM_SLOTS - 1;
-}
-
-void DRM(histogram_compute)(drm_device_t *dev, drm_buf_t *buf)
-{
-	cycles_t queued_to_dispatched;
-	cycles_t dispatched_to_completed;
-	cycles_t completed_to_freed;
-	int	 q2d, d2c, c2f, q2c, q2f;
-
-	if (buf->time_queued) {
-		queued_to_dispatched	= (buf->time_dispatched
-					   - buf->time_queued);
-		dispatched_to_completed = (buf->time_completed
-					   - buf->time_dispatched);
-		completed_to_freed	= (buf->time_freed
-					   - buf->time_completed);
-
-		q2d = DRM(histogram_slot)(queued_to_dispatched);
-		d2c = DRM(histogram_slot)(dispatched_to_completed);
-		c2f = DRM(histogram_slot)(completed_to_freed);
-
-		q2c = DRM(histogram_slot)(queued_to_dispatched
-					  + dispatched_to_completed);
-		q2f = DRM(histogram_slot)(queued_to_dispatched
-					  + dispatched_to_completed
-					  + completed_to_freed);
-
-		atomic_inc(&dev->histo.total);
-		atomic_inc(&dev->histo.queued_to_dispatched[q2d]);
-		atomic_inc(&dev->histo.dispatched_to_completed[d2c]);
-		atomic_inc(&dev->histo.completed_to_freed[c2f]);
-
-		atomic_inc(&dev->histo.queued_to_completed[q2c]);
-		atomic_inc(&dev->histo.queued_to_freed[q2f]);
-
-	}
-	buf->time_queued     = 0;
-	buf->time_dispatched = 0;
-	buf->time_completed  = 0;
-	buf->time_freed	     = 0;
-}
-#endif
-
 void DRM(free_buffer)(drm_device_t *dev, drm_buf_t *buf)
 {
 	if (!buf) return;
 
-	buf->waiting  = 0;
 	buf->pending  = 0;
-	buf->pid      = 0;
+	buf->filp     = NULL;
 	buf->used     = 0;
-#if __HAVE_DMA_HISTOGRAM
-	buf->time_completed = get_cycles();
-#endif
-
-	if ( buf->dma_wait ) {
-		wakeup( (void *)&buf->dma_wait );
-		buf->dma_wait = 0;
-	}
-#if __HAVE_DMA_FREELIST
-	else {
-		drm_device_dma_t *dma = dev->dma;
-				/* If processes are waiting, the last one
-				   to wake will put the buffer on the free
-				   list.  If no processes are waiting, we
-				   put the buffer on the freelist here. */
-		DRM(freelist_put)(dev, &dma->bufs[buf->order].freelist, buf);
-	}
-#endif
 }
 
 #if !__HAVE_DMA_RECLAIM
-void DRM(reclaim_buffers)(drm_device_t *dev, pid_t pid)
+void DRM(reclaim_buffers)(drm_device_t *dev, DRMFILE filp)
 {
 	drm_device_dma_t *dma = dev->dma;
 	int		 i;
 
 	if (!dma) return;
 	for (i = 0; i < dma->buf_count; i++) {
-		if (dma->buflist[i]->pid == pid) {
+		if (dma->buflist[i]->filp == filp) {
 			switch (dma->buflist[i]->list) {
 			case DRM_LIST_NONE:
 				DRM(free_buffer)(dev, dma->buflist[i]);
@@ -230,271 +152,6 @@ void DRM(reclaim_buffers)(drm_device_t *dev, pid_t pid)
 #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 )
@@ -515,11 +172,8 @@ int DRM(irq_install)( drm_device_t *dev, int irq )
 	DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq );
 
 	dev->context_flag = 0;
-	dev->interrupt_flag = 0;
-	dev->dma_flag = 0;
 
 	dev->dma->next_buffer = NULL;
-	dev->dma->next_queue = NULL;
 	dev->dma->this_buffer = NULL;
 
 #if __HAVE_DMA_IRQ_BH