diff options
Diffstat (limited to 'kernel/include/common/ethosu_dma_mem.h')
-rw-r--r-- | kernel/include/common/ethosu_dma_mem.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/kernel/include/common/ethosu_dma_mem.h b/kernel/include/common/ethosu_dma_mem.h new file mode 100644 index 0000000..eac4b42 --- /dev/null +++ b/kernel/include/common/ethosu_dma_mem.h @@ -0,0 +1,58 @@ +/* + * SPDX-FileCopyrightText: Copyright 2023-2024 Arm Limited and/or its affiliates <open-source-office@arm.com> + * SPDX-License-Identifier: GPL-2.0-only + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, you can access it online at + * http://www.gnu.org/licenses/gpl-2.0.html. + */ + +#ifndef ETHOSU_DMA_MEM_H +#define ETHOSU_DMA_MEM_H + +/**************************************************************************** + * Includes + ****************************************************************************/ + +#include <linux/types.h> + +/**************************************************************************** + * Types + ****************************************************************************/ + +struct device; + +/** + * struct ethosu_dma_mem - DMA memory allocation + * @dev: Device + * @size: Size of the allocation + * @cpu_addr: Kernel mapped address + * @dma_addr: DMA address + */ +struct ethosu_dma_mem { + struct device *dev; + size_t size; + void *cpu_addr; + dma_addr_t dma_addr; +}; + +/**************************************************************************** + * Functions + ****************************************************************************/ + +struct ethosu_dma_mem *ethosu_dma_mem_alloc(struct device *dev, + size_t size); + +void ethosu_dma_mem_free(struct ethosu_dma_mem **dma_mem); + +#endif /* ETHOSU_DMA_MEM_H */ |