Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/include/drm/drm_aperture.h b/include/drm/drm_aperture.h
new file mode 100644
index 000000000..cbe33b49f
--- /dev/null
+++ b/include/drm/drm_aperture.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: MIT */
+
+#ifndef _DRM_APERTURE_H_
+#define _DRM_APERTURE_H_
+
+#include <linux/types.h>
+
+struct drm_device;
+struct drm_driver;
+struct pci_dev;
+
+int devm_aperture_acquire_from_firmware(struct drm_device *dev, resource_size_t base,
+					resource_size_t size);
+
+int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_size_t size,
+						 const struct drm_driver *req_driver);
+
+int drm_aperture_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
+						     const struct drm_driver *req_driver);
+
+/**
+ * drm_aperture_remove_framebuffers - remove all existing framebuffers
+ * @req_driver: requesting DRM driver
+ *
+ * This function removes all graphics device drivers. Use this function on systems
+ * that can have their framebuffer located anywhere in memory.
+ *
+ * Returns:
+ * 0 on success, or a negative errno code otherwise
+ */
+static inline int
+drm_aperture_remove_framebuffers(const struct drm_driver *req_driver)
+{
+	return drm_aperture_remove_conflicting_framebuffers(0, (resource_size_t)-1,
+							    req_driver);
+}
+
+#endif