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-rw-r--r--drivers/gpu/drm/tegra/uapi.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/uapi.h b/drivers/gpu/drm/tegra/uapi.h
new file mode 100644
index 000000000..92ff1e44f
--- /dev/null
+++ b/drivers/gpu/drm/tegra/uapi.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2020 NVIDIA Corporation */
+
+#ifndef _TEGRA_DRM_UAPI_H
+#define _TEGRA_DRM_UAPI_H
+
+#include <linux/dma-mapping.h>
+#include <linux/idr.h>
+#include <linux/kref.h>
+#include <linux/xarray.h>
+
+#include <drm/drm.h>
+
+struct drm_file;
+struct drm_device;
+
+struct tegra_drm_file {
+ /* Legacy UAPI state */
+ struct idr legacy_contexts;
+ struct mutex lock;
+
+ /* New UAPI state */
+ struct xarray contexts;
+ struct xarray syncpoints;
+};
+
+struct tegra_drm_mapping {
+ struct kref ref;
+
+ struct host1x_bo_mapping *map;
+ struct host1x_bo *bo;
+
+ dma_addr_t iova;
+ dma_addr_t iova_end;
+};
+
+int tegra_drm_ioctl_channel_open(struct drm_device *drm, void *data,
+ struct drm_file *file);
+int tegra_drm_ioctl_channel_close(struct drm_device *drm, void *data,
+ struct drm_file *file);
+int tegra_drm_ioctl_channel_map(struct drm_device *drm, void *data,
+ struct drm_file *file);
+int tegra_drm_ioctl_channel_unmap(struct drm_device *drm, void *data,
+ struct drm_file *file);
+int tegra_drm_ioctl_channel_submit(struct drm_device *drm, void *data,
+ struct drm_file *file);
+int tegra_drm_ioctl_syncpoint_allocate(struct drm_device *drm, void *data,
+ struct drm_file *file);
+int tegra_drm_ioctl_syncpoint_free(struct drm_device *drm, void *data,
+ struct drm_file *file);
+int tegra_drm_ioctl_syncpoint_wait(struct drm_device *drm, void *data,
+ struct drm_file *file);
+
+void tegra_drm_uapi_close_file(struct tegra_drm_file *file);
+void tegra_drm_mapping_put(struct tegra_drm_mapping *mapping);
+
+#endif