1 files changed, 22 insertions, 1 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index 39d43a01d846..e6a1eb7ea954 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -34,6 +34,9 @@ bool vmw_fifo_have_3d(struct vmw_private *dev_priv)
         __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
         uint32_t fifo_min, hwversion;
 
+        if (!(dev_priv->capabilities & SVGA_CAP_EXTENDED_FIFO))
+                return false;
+
         fifo_min = ioread32(fifo_mem  + SVGA_FIFO_MIN);
         if (fifo_min <= SVGA_FIFO_3D_HWVERSION * sizeof(unsigned int))
                 return false;
@@ -48,6 +51,21 @@ bool vmw_fifo_have_3d(struct vmw_private *dev_priv)
         return true;
 }
 
+bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv)
+{
+        __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
+        uint32_t caps;
+
+        if (!(dev_priv->capabilities & SVGA_CAP_EXTENDED_FIFO))
+                return false;
+
+        caps = ioread32(fifo_mem + SVGA_FIFO_CAPABILITIES);
+        if (caps & SVGA_FIFO_CAP_PITCHLOCK)
+                return true;
+
+        return false;
+}
+
 int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
 {
         __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
@@ -120,7 +138,7 @@ 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 +177,7 @@ 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 +503,8 @@ 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;