Update shared drm code, inteldrm(4) and radeondrm(4) from linux 4.4 to

linux 4.19.34.

Adds support for more Intel hardware:
Broxton/Apollo Lake (was is_preliminary in 4.4)
Amber Lake (another Kaby Lake refresh)
Gemini Lake
Coffee Lake
Whiskey Lake
Cannon Lake (though no hardware with Intel graphics ever shipped)
Ice Lake (alpha support, hardware not released)

This does not add support for new radeon hardware on the AMD side as
newer radeons have a different kernel driver (amdgpu).

Thanks to the OpenBSD Foundation for sponsoring this work, kettenis@ for
helping and a bunch of other developers for testing.

1 files changed, 16 insertions, 0 deletions

diff --git a/sys/dev/pci/drm/include/linux/lockdep.h b/sys/dev/pci/drm/include/linux/lockdep.h
new file mode 100644
index 00000000000..a6407a1d645
--- /dev/null
+++ b/sys/dev/pci/drm/include/linux/lockdep.h
@@ -0,0 +1,16 @@
+/* Public domain. */
+
+#ifndef _LINUX_LOCKDEP_H
+#define _LINUX_LOCKDEP_H
+
+struct lock_class_key {
+};
+
+#define might_lock(lock)
+#define lockdep_assert_held(lock)	do { (void)(lock); } while(0)
+#define lock_acquire(lock, a, b, c, d, e, f)
+#define lock_release(lock, a, b)
+#define lock_acquire_shared_recursive(lock, a, b, c, d)
+#define lockdep_set_subclass(a, b)
+
+#endif