gralloc3/src/mali_gralloc_ion.h

/*
 * Copyright (C) 2016, 2018-2019 ARM Limited. All rights reserved.
 *
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef MALI_GRALLOC_ION_H_
#define MALI_GRALLOC_ION_H_

#include "mali_gralloc_module.h"
#include "mali_gralloc_bufferdescriptor.h"

/**
 * enum mem_types - list of all possible types of heaps
 * @TYPE_SYSTEM:    memory allocated via vmalloc
 * @TYPE_SYSTEM_CONTIG: memory allocated via kmalloc
 * @TYPE_CARVEOUT:  memory allocated from a prereserved
 *               carveout heap, allocations are physically
 *               contiguous
 * @TYPE_DMA:       memory allocated via DMA API
 */
enum mem_type {
	TYPE_SYSTEM,
	TYPE_SYSTEM_CONTIG,
	TYPE_CARVEOUT,
	TYPE_CHUNK,
	TYPE_DMA,
	TYPE_CUSTOM, /*
						   * must be last so device specific heaps always
						   * are at the end of this enum
						   */
	TYPE_HPA = TYPE_CUSTOM,
};

int mali_gralloc_ion_allocate(const gralloc_buffer_descriptor_t *descriptors,
                              uint32_t numDescriptors, buffer_handle_t *pHandle, bool *alloc_from_backing_store);
void mali_gralloc_ion_free(private_handle_t * const hnd);
int mali_gralloc_ion_sync_start(const private_handle_t * const hnd,
                                const bool read, const bool write);
int mali_gralloc_ion_sync_end(const private_handle_t * const hnd,
                              const bool read, const bool write);
int mali_gralloc_ion_map(private_handle_t *hnd);
void mali_gralloc_ion_unmap(private_handle_t *hnd);
void mali_gralloc_ion_close(void);

int import_exynos_ion_handles(private_handle_t *hnd);
void free_exynos_ion_handles(private_handle_t *hnd);

int mali_gralloc_ion_open(void);

int alloc_metadata(void);

#endif /* MALI_GRALLOC_ION_H_ */