drm/etnaviv/etnaviv_cmdbuf.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * Copyright (C) 2017 Etnaviv Project
0004  */
0005
0006 #ifndef __ETNAVIV_CMDBUF_H__
0007 #define __ETNAVIV_CMDBUF_H__
0008
0009 #include <linux/types.h>
0010
0011 struct device;
0012 struct etnaviv_iommu_context;
0013 struct etnaviv_vram_mapping;
0014 struct etnaviv_cmdbuf_suballoc;
0015 struct etnaviv_perfmon_request;
0016
0017 struct etnaviv_cmdbuf {
0018     /* suballocator this cmdbuf is allocated from */
0019     struct etnaviv_cmdbuf_suballoc *suballoc;
0020     /* cmdbuf properties */
0021     int suballoc_offset;
0022     void *vaddr;
0023     u32 size;
0024     u32 user_size;
0025 };
0026
0027 struct etnaviv_cmdbuf_suballoc *
0028 etnaviv_cmdbuf_suballoc_new(struct device *dev);
0029 void etnaviv_cmdbuf_suballoc_destroy(struct etnaviv_cmdbuf_suballoc *suballoc);
0030 int etnaviv_cmdbuf_suballoc_map(struct etnaviv_cmdbuf_suballoc *suballoc,
0031                 struct etnaviv_iommu_context *context,
0032                 struct etnaviv_vram_mapping *mapping,
0033                 u32 memory_base);
0034 void etnaviv_cmdbuf_suballoc_unmap(struct etnaviv_iommu_context *context,
0035                    struct etnaviv_vram_mapping *mapping);
0036
0037
0038 int etnaviv_cmdbuf_init(struct etnaviv_cmdbuf_suballoc *suballoc,
0039         struct etnaviv_cmdbuf *cmdbuf, u32 size);
0040 void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
0041
0042 u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf,
0043               struct etnaviv_vram_mapping *mapping);
0044 dma_addr_t etnaviv_cmdbuf_get_pa(struct etnaviv_cmdbuf *buf);
0045
0046 #endif /* __ETNAVIV_CMDBUF_H__ */