drm/radeon: add VRAM debugfs access v3
Not very fast, but makes it possible to access even the
normally inaccessible parts of VRAM from userspace.
v2: use MM_INDEX_HI for >2GB mem access, add default_llseek
v3: set inode size in the open callback
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index b1f990d..49f210c1 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -413,6 +413,10 @@
struct ttm_bo_device bdev;
bool mem_global_referenced;
bool initialized;
+
+#if defined(CONFIG_DEBUG_FS)
+ struct dentry *vram;
+#endif
};
/* bo virtual address in a specific vm */