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vmwgfx: Implement fence objects

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Will be needed for queries and drm event-driven throttling.

As a benefit, they help avoid stale user-space fence handles.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom
2011-09-01 20:18:44 +00:00
committed by Dave Airlie
parent 4f73a96bd7
commit ae2a104058
10 changed files with 1010 additions and 87 deletions
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26
drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
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@@ -274,39 +274,39 @@ static int vmw_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
static void *vmw_sync_obj_ref(void *sync_obj)
{
return sync_obj;
return (void *)
vmw_fence_obj_reference((struct vmw_fence_obj *) sync_obj);
}
static void vmw_sync_obj_unref(void **sync_obj)
{
*sync_obj = NULL;
vmw_fence_obj_unreference((struct vmw_fence_obj **) sync_obj);
}
static int vmw_sync_obj_flush(void *sync_obj, void *sync_arg)
{
struct vmw_private *dev_priv = (struct vmw_private *)sync_arg;
mutex_lock(&dev_priv->hw_mutex);
vmw_write(dev_priv, SVGA_REG_SYNC, SVGA_SYNC_GENERIC);
mutex_unlock(&dev_priv->hw_mutex);
vmw_fence_obj_flush((struct vmw_fence_obj *) sync_obj);
return 0;
}
static bool vmw_sync_obj_signaled(void *sync_obj, void *sync_arg)
{
struct vmw_private *dev_priv = (struct vmw_private *)sync_arg;
uint32_t seqno = (unsigned long) sync_obj;
unsigned long flags = (unsigned long) sync_arg;
return vmw_fence_obj_signaled((struct vmw_fence_obj *) sync_obj,
(uint32_t) flags);
return vmw_seqno_passed(dev_priv, seqno);
}
static int vmw_sync_obj_wait(void *sync_obj, void *sync_arg,
bool lazy, bool interruptible)
{
struct vmw_private *dev_priv = (struct vmw_private *)sync_arg;
uint32_t seqno = (unsigned long) sync_obj;
unsigned long flags = (unsigned long) sync_arg;
return vmw_wait_seqno(dev_priv, false, seqno, false, 3*HZ);
return vmw_fence_obj_wait((struct vmw_fence_obj *) sync_obj,
(uint32_t) flags,
lazy, interruptible,
VMW_FENCE_WAIT_TIMEOUT);
}
struct ttm_bo_driver vmw_bo_driver = {