1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imagination/pvr_vm.h b/drivers/gpu/drm/imagination/pvr_vm.h
new file mode 100644
index 000000000..f2a6463f2
--- /dev/null
+++ b/drivers/gpu/drm/imagination/pvr_vm.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#ifndef PVR_VM_H
+#define PVR_VM_H
+
+#include "pvr_rogue_mmu_defs.h"
+
+#include <uapi/drm/pvr_drm.h>
+
+#include <linux/types.h>
+
+/* Forward declaration from "pvr_device.h" */
+struct pvr_device;
+struct pvr_file;
+
+/* Forward declaration from "pvr_gem.h" */
+struct pvr_gem_object;
+
+/* Forward declaration from "pvr_vm.c" */
+struct pvr_vm_context;
+
+/* Forward declaration from <uapi/drm/pvr_drm.h> */
+struct drm_pvr_ioctl_get_heap_info_args;
+
+/* Forward declaration from <drm/drm_exec.h> */
+struct drm_exec;
+
+/* Functions defined in pvr_vm.c */
+
+bool pvr_device_addr_is_valid(u64 device_addr);
+bool pvr_device_addr_and_size_are_valid(struct pvr_vm_context *vm_ctx,
+					u64 device_addr, u64 size);
+
+struct pvr_vm_context *pvr_vm_create_context(struct pvr_device *pvr_dev,
+					     bool is_userspace_context);
+
+int pvr_vm_map(struct pvr_vm_context *vm_ctx,
+	       struct pvr_gem_object *pvr_obj, u64 pvr_obj_offset,
+	       u64 device_addr, u64 size);
+int pvr_vm_unmap(struct pvr_vm_context *vm_ctx, u64 device_addr, u64 size);
+
+dma_addr_t pvr_vm_get_page_table_root_addr(struct pvr_vm_context *vm_ctx);
+struct dma_resv *pvr_vm_get_dma_resv(struct pvr_vm_context *vm_ctx);
+
+int pvr_static_data_areas_get(const struct pvr_device *pvr_dev,
+			      struct drm_pvr_ioctl_dev_query_args *args);
+int pvr_heap_info_get(const struct pvr_device *pvr_dev,
+		      struct drm_pvr_ioctl_dev_query_args *args);
+const struct drm_pvr_heap *pvr_find_heap_containing(struct pvr_device *pvr_dev,
+						    u64 addr, u64 size);
+
+struct pvr_gem_object *pvr_vm_find_gem_object(struct pvr_vm_context *vm_ctx,
+					      u64 device_addr,
+					      u64 *mapped_offset_out,
+					      u64 *mapped_size_out);
+
+struct pvr_fw_object *
+pvr_vm_get_fw_mem_context(struct pvr_vm_context *vm_ctx);
+
+struct pvr_vm_context *pvr_vm_context_lookup(struct pvr_file *pvr_file, u32 handle);
+struct pvr_vm_context *pvr_vm_context_get(struct pvr_vm_context *vm_ctx);
+bool pvr_vm_context_put(struct pvr_vm_context *vm_ctx);
+void pvr_destroy_vm_contexts_for_file(struct pvr_file *pvr_file);
+
+#endif /* PVR_VM_H */