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/* SPDX-License-Identifier: GPL-2.0 */
/*
* VideoCore Shared Memory CMA allocator
*
* Copyright: 2018, Raspberry Pi (Trading) Ltd
* Copyright 2011-2012 Broadcom Corporation. All rights reserved.
*
* Based on vmcs_sm driver from Broadcom Corporation.
*
*/
#ifndef __VC_SM_CMA_VCHI_H__INCLUDED__
#define __VC_SM_CMA_VCHI_H__INCLUDED__
#include "interface/vchi/vchi.h"
#include "vc_sm_defs.h"
/*
* Forward declare.
*/
struct sm_instance;
typedef void (*vpu_event_cb)(struct sm_instance *instance,
struct vc_sm_result_t *reply, int reply_len);
/*
* Initialize the shared memory service, opens up vchi connection to talk to it.
*/
struct sm_instance *vc_sm_cma_vchi_init(struct vchi_instance_handle * vchi_instance,
unsigned int num_connections,
vpu_event_cb vpu_event);
/*
* Terminates the shared memory service.
*/
int vc_sm_cma_vchi_stop(struct sm_instance **handle);
/*
* Ask the shared memory service to free up some memory that was previously
* allocated by the vc_sm_cma_vchi_alloc function call.
*/
int vc_sm_cma_vchi_free(struct sm_instance *handle, struct vc_sm_free_t *msg,
u32 *cur_trans_id);
/*
* Import a contiguous block of memory and wrap it in a GPU MEM_HANDLE_T.
*/
int vc_sm_cma_vchi_import(struct sm_instance *handle, struct vc_sm_import *msg,
struct vc_sm_import_result *result,
u32 *cur_trans_id);
int vc_sm_cma_vchi_client_version(struct sm_instance *handle,
struct vc_sm_version *msg,
struct vc_sm_result_t *result,
u32 *cur_trans_id);
int vc_sm_vchi_client_vc_mem_req_reply(struct sm_instance *handle,
struct vc_sm_vc_mem_request_result *msg,
uint32_t *cur_trans_id);
#endif /* __VC_SM_CMA_VCHI_H__INCLUDED__ */
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