vmwgfx: Bump major
This bumps driver major version as a result of previous incompatible
interface changes.
In addition, a leftover command definition is removed from the
vmwgfx_drm.h header.
Also a strict version check is enforced on the exebuf ioctl.
This is intended to be the last major bump before exiting staging.
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 d48ee89..fa26e64 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -734,6 +734,20 @@
struct vmw_fence_obj *fence;
uint32_t handle;
+ /*
+ * This will allow us to extend the ioctl argument while
+ * maintaining backwards compatibility:
+ * We take different code paths depending on the value of
+ * arg->version.
+ */
+
+ if (unlikely(arg->version != DRM_VMW_EXECBUF_VERSION)) {
+ DRM_ERROR("Incorrect execbuf version.\n");
+ DRM_ERROR("You're running outdated experimental "
+ "vmwgfx user-space drivers.");
+ return -EINVAL;
+ }
+
ret = ttm_read_lock(&vmaster->lock, true);
if (unlikely(ret != 0))
return ret;