drm/mm: add ability to dump mm lists via debugfs
This adds code to the drm_mm to talk to debugfs, and adds
support to radeon to add the VRAM and GTT mm lists to debugfs.
I tested with spinlock debugging and it doesn't give out.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index f833207..bc5a87e 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -96,4 +96,8 @@
return block->mm;
}
+#ifdef CONFIG_DEBUG_FS
+int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm);
+#endif
+
#endif