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drm/vmwgfx: Add kernel throttling support. Bump minor.

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The throttle_us member in the execbuf argument is now honored.
If the member is 0, no waiting for lag will occur, which
guarantees backwards compatibility with well-behaved clients.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom
2010-05-28 11:21:57 +02:00
committed by Dave Airlie
parent 04e9e94dba
commit 1925d45658
6 changed files with 227 additions and 6 deletions
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5
drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
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@@ -120,7 +120,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
atomic_set(&dev_priv->fence_seq, dev_priv->last_read_sequence);
iowrite32(dev_priv->last_read_sequence, fifo_mem + SVGA_FIFO_FENCE);
vmw_fence_queue_init(&fifo->fence_queue);
return vmw_fifo_send_fence(dev_priv, &dummy);
out_err:
vfree(fifo->static_buffer);
@@ -159,6 +159,7 @@ void vmw_fifo_release(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
dev_priv->enable_state);
mutex_unlock(&dev_priv->hw_mutex);
vmw_fence_queue_takedown(&fifo->fence_queue);
if (likely(fifo->last_buffer != NULL)) {
vfree(fifo->last_buffer);
@@ -484,6 +485,8 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *sequence)
fifo_state->last_buffer_add = true;
vmw_fifo_commit(dev_priv, bytes);
fifo_state->last_buffer_add = false;
(void) vmw_fence_push(&fifo_state->fence_queue, *sequence);
vmw_update_sequence(dev_priv, fifo_state);
out_err:
return ret;