1 files changed, 127 insertions, 0 deletions

diff --git a/drivers/accel/ivpu/ivpu_gem.h b/drivers/accel/ivpu/ivpu_gem.h
new file mode 100644
index 000000000000..6b0ceda5f253
--- /dev/null
+++ b/drivers/accel/ivpu/ivpu_gem.h
@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+#ifndef __IVPU_GEM_H__
+#define __IVPU_GEM_H__
+
+#include <drm/drm_gem.h>
+#include <drm/drm_mm.h>
+
+struct dma_buf;
+struct ivpu_bo_ops;
+struct ivpu_file_priv;
+
+struct ivpu_bo {
+	struct drm_gem_object base;
+	const struct ivpu_bo_ops *ops;
+
+	struct ivpu_mmu_context *ctx;
+	struct list_head ctx_node;
+	struct drm_mm_node mm_node;
+
+	struct mutex lock; /* Protects: pages, sgt, mmu_mapped */
+	struct sg_table *sgt;
+	struct page **pages;
+	bool mmu_mapped;
+
+	void *kvaddr;
+	u64 vpu_addr;
+	u32 handle;
+	u32 flags;
+	uintptr_t user_ptr;
+	u32 job_status;
+};
+
+enum ivpu_bo_type {
+	IVPU_BO_TYPE_SHMEM = 1,
+	IVPU_BO_TYPE_INTERNAL,
+	IVPU_BO_TYPE_PRIME,
+};
+
+struct ivpu_bo_ops {
+	enum ivpu_bo_type type;
+	const char *name;
+	int (*alloc_pages)(struct ivpu_bo *bo);
+	void (*free_pages)(struct ivpu_bo *bo);
+	int (*map_pages)(struct ivpu_bo *bo);
+	void (*unmap_pages)(struct ivpu_bo *bo);
+};
+
+int ivpu_bo_pin(struct ivpu_bo *bo);
+void ivpu_bo_remove_all_bos_from_context(struct ivpu_mmu_context *ctx);
+void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p);
+void ivpu_bo_list_print(struct drm_device *dev);
+
+struct ivpu_bo *
+ivpu_bo_alloc_internal(struct ivpu_device *vdev, u64 vpu_addr, u64 size, u32 flags);
+void ivpu_bo_free_internal(struct ivpu_bo *bo);
+struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf);
+void ivpu_bo_unmap_sgt_and_remove_from_context(struct ivpu_bo *bo);
+
+int ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_bo_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+
+static inline struct ivpu_bo *to_ivpu_bo(struct drm_gem_object *obj)
+{
+	return container_of(obj, struct ivpu_bo, base);
+}
+
+static inline struct page *ivpu_bo_get_page(struct ivpu_bo *bo, u64 offset)
+{
+	if (offset > bo->base.size || !bo->pages)
+		return NULL;
+
+	return bo->pages[offset / PAGE_SIZE];
+}
+
+static inline u32 ivpu_bo_cache_mode(struct ivpu_bo *bo)
+{
+	return bo->flags & DRM_IVPU_BO_CACHE_MASK;
+}
+
+static inline bool ivpu_bo_is_snooped(struct ivpu_bo *bo)
+{
+	return ivpu_bo_cache_mode(bo) == DRM_IVPU_BO_CACHED;
+}
+
+static inline pgprot_t ivpu_bo_pgprot(struct ivpu_bo *bo, pgprot_t prot)
+{
+	if (bo->flags & DRM_IVPU_BO_WC)
+		return pgprot_writecombine(prot);
+
+	if (bo->flags & DRM_IVPU_BO_UNCACHED)
+		return pgprot_noncached(prot);
+
+	return prot;
+}
+
+static inline struct ivpu_device *ivpu_bo_to_vdev(struct ivpu_bo *bo)
+{
+	return to_ivpu_device(bo->base.dev);
+}
+
+static inline void *ivpu_to_cpu_addr(struct ivpu_bo *bo, u32 vpu_addr)
+{
+	if (vpu_addr < bo->vpu_addr)
+		return NULL;
+
+	if (vpu_addr >= (bo->vpu_addr + bo->base.size))
+		return NULL;
+
+	return bo->kvaddr + (vpu_addr - bo->vpu_addr);
+}
+
+static inline u32 cpu_to_vpu_addr(struct ivpu_bo *bo, void *cpu_addr)
+{
+	if (cpu_addr < bo->kvaddr)
+		return 0;
+
+	if (cpu_addr >= (bo->kvaddr + bo->base.size))
+		return 0;
+
+	return bo->vpu_addr + (cpu_addr - bo->kvaddr);
+}
+
+#endif /* __IVPU_GEM_H__ */