1 files changed, 124 insertions, 0 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.h b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
new file mode 100644
index 000000000..63688e6e4
--- /dev/null
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2015-2018 Etnaviv Project
+ */
+
+#ifndef __ETNAVIV_GEM_H__
+#define __ETNAVIV_GEM_H__
+
+#include <linux/dma-resv.h>
+#include "etnaviv_cmdbuf.h"
+#include "etnaviv_drv.h"
+
+struct dma_fence;
+struct etnaviv_gem_ops;
+struct etnaviv_gem_object;
+
+struct etnaviv_gem_userptr {
+	uintptr_t ptr;
+	struct mm_struct *mm;
+	bool ro;
+};
+
+struct etnaviv_vram_mapping {
+	struct list_head obj_node;
+	struct list_head scan_node;
+	struct list_head mmu_node;
+	struct etnaviv_gem_object *object;
+	struct etnaviv_iommu_context *context;
+	struct drm_mm_node vram_node;
+	unsigned int use;
+	u32 iova;
+};
+
+struct etnaviv_gem_object {
+	struct drm_gem_object base;
+	const struct etnaviv_gem_ops *ops;
+	struct mutex lock;
+
+	u32 flags;
+
+	struct list_head gem_node;
+	struct etnaviv_gpu *gpu;     /* non-null if active */
+	atomic_t gpu_active;
+	u32 access;
+
+	struct page **pages;
+	struct sg_table *sgt;
+	void *vaddr;
+
+	struct list_head vram_list;
+
+	/* cache maintenance */
+	u32 last_cpu_prep_op;
+
+	struct etnaviv_gem_userptr userptr;
+};
+
+static inline
+struct etnaviv_gem_object *to_etnaviv_bo(struct drm_gem_object *obj)
+{
+	return container_of(obj, struct etnaviv_gem_object, base);
+}
+
+struct etnaviv_gem_ops {
+	int (*get_pages)(struct etnaviv_gem_object *);
+	void (*release)(struct etnaviv_gem_object *);
+	void *(*vmap)(struct etnaviv_gem_object *);
+	int (*mmap)(struct etnaviv_gem_object *, struct vm_area_struct *);
+};
+
+static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
+{
+	return atomic_read(&etnaviv_obj->gpu_active) != 0;
+}
+
+#define MAX_CMDS 4
+
+struct etnaviv_gem_submit_bo {
+	u32 flags;
+	u64 va;
+	struct etnaviv_gem_object *obj;
+	struct etnaviv_vram_mapping *mapping;
+};
+
+/* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
+ * associated with the cmdstream submission for synchronization (and
+ * make it easier to unwind when things go wrong, etc).
+ */
+struct etnaviv_gem_submit {
+	struct drm_sched_job sched_job;
+	struct kref refcount;
+	struct etnaviv_file_private *ctx;
+	struct etnaviv_gpu *gpu;
+	struct etnaviv_iommu_context *mmu_context, *prev_mmu_context;
+	struct dma_fence *out_fence;
+	int out_fence_id;
+	struct list_head node; /* GPU active submit list */
+	struct etnaviv_cmdbuf cmdbuf;
+	bool runtime_resumed;
+	u32 exec_state;
+	u32 flags;
+	unsigned int nr_pmrs;
+	struct etnaviv_perfmon_request *pmrs;
+	unsigned int nr_bos;
+	struct etnaviv_gem_submit_bo bos[];
+	/* No new members here, the previous one is variable-length! */
+};
+
+void etnaviv_submit_put(struct etnaviv_gem_submit * submit);
+
+int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
+	struct drm_etnaviv_timespec *timeout);
+int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
+	const struct etnaviv_gem_ops *ops, struct etnaviv_gem_object **res);
+void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
+struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *obj);
+void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
+
+struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
+	struct drm_gem_object *obj, struct etnaviv_iommu_context *mmu_context,
+	u64 va);
+void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping);
+
+#endif /* __ETNAVIV_GEM_H__ */