hva-mem.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright (C) STMicroelectronics SA 2015
 4 * Authors: Yannick Fertre <yannick.fertre@st.com>
 5 *          Hugues Fruchet <hugues.fruchet@st.com>
 6 */
 7
 8#ifndef HVA_MEM_H
 9#define HVA_MEM_H
10
11/**
12 * struct hva_buffer - hva buffer
13 *
14 * @name:  name of requester
15 * @paddr: physical address (for hardware)
16 * @vaddr: virtual address (kernel can read/write)
17 * @size:  size of buffer
18 */
19struct hva_buffer {
20	const char		*name;
21	dma_addr_t		paddr;
22	void			*vaddr;
23	u32			size;
24};
25
26int hva_mem_alloc(struct hva_ctx *ctx,
27		  __u32 size,
28		  const char *name,
29		  struct hva_buffer **buf);
30
31void hva_mem_free(struct hva_ctx *ctx,
32		  struct hva_buffer *buf);
33
34#endif /* HVA_MEM_H */