drm/vmwgfx: Add kernel throttling support. Bump minor.
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>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index dbd36b8..bdd67cf 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -669,6 +669,15 @@
goto out_err;
vmw_apply_relocations(sw_context);
+
+ if (arg->throttle_us) {
+ ret = vmw_wait_lag(dev_priv, &dev_priv->fifo.fence_queue,
+ arg->throttle_us);
+
+ if (unlikely(ret != 0))
+ goto out_err;
+ }
+
vmw_fifo_commit(dev_priv, arg->command_size);
ret = vmw_fifo_send_fence(dev_priv, &sequence);