2 Copyright (c) 2012, Broadcom Europe Ltd
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30 #include "interface/vcos/vcos.h"
31 #include "interface/vchiq_arm/vchiq.h"
35 #include <linux/ioctl.h>
37 #define VC_CMA_IOC_MAGIC 0xc5
39 #define VC_CMA_IOC_RESERVE _IO(VC_CMA_IOC_MAGIC, 0)
43 #define VC_CMA_FOURCC VCHIQ_MAKE_FOURCC('C','M','A',' ')
44 #define VC_CMA_VERSION 2
46 #define VC_CMA_CHUNK_ORDER 6 /* 256K */
47 #define VC_CMA_CHUNK_SIZE (4096 << VC_CMA_CHUNK_ORDER)
48 #define VC_CMA_MAX_PARAMS_PER_MSG ((VCHIQ_MAX_MSG_SIZE - sizeof(unsigned short)) / sizeof(unsigned short))
55 VC_CMA_MSG_ALLOC, /* chunk count */
56 VC_CMA_MSG_FREE, /* chunk, chunk, ... */
57 VC_CMA_MSG_ALLOCATED, /* chunk, chunk, ... */
58 VC_CMA_MSG_REQUEST_ALLOC, /* chunk count */
59 VC_CMA_MSG_REQUEST_FREE, /* chunk count */
60 VC_CMA_MSG_RESERVE, /* bytes lo, bytes hi */
64 typedef struct vc_cma_msg_struct
67 unsigned short params[VC_CMA_MAX_PARAMS_PER_MSG];