1 files changed, 58 insertions, 0 deletions
diff --git a/kernel/ethosu_dma_mem.h b/kernel/ethosu_dma_mem.h
new file mode 100644
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--- /dev/null
+++ b/kernel/ethosu_dma_mem.h
@@ -0,0 +1,58 @@
+/*
+ * SPDX-FileCopyrightText: Copyright 2023 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 */