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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_XSVC_H
#define _SYS_XSVC_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/avl.h>
#include <sys/types.h>
/* xsvc ioctls */
#define XSVCIOC ('Q'<< 8)
#define XSVC_ALLOC_MEM (XSVCIOC | 130)
#define XSVC_FREE_MEM (XSVCIOC | 131)
#define XSVC_FLUSH_MEM (XSVCIOC | 132)
/* arg * struct for ioctls */
typedef struct _xsvc_mem_req {
int xsvc_mem_reqid; /* request ID */
uint64_t xsvc_mem_addr_lo; /* low DMA address range */
uint64_t xsvc_mem_addr_hi; /* high DMA address range */
uint64_t xsvc_mem_align; /* DMA address alignment */
int xsvc_mem_sgllen; /* s/g length */
size_t xsvc_mem_size; /* length of mem in bytes */
void *xsvc_sg_list; /* returned scatter gather list */
} xsvc_mem_req;
/* xsvc_sg_list format */
typedef struct _xsvc_mloc {
uint64_t mloc_addr;
size_t mloc_size;
} xsvc_mloc;
#ifdef _KERNEL
/* *** Driver Private Below *** */
/* arg * struct for ioctls from 32-bit app in 64-bit kernel */
#pragma pack(1)
typedef struct _xsvc_mem_req_32 {
int xsvc_mem_reqid; /* request ID */
uint64_t xsvc_mem_addr_lo; /* low DMA address range */
uint64_t xsvc_mem_addr_hi; /* high DMA address range */
uint64_t xsvc_mem_align; /* DMA address alignment */
int xsvc_mem_sgllen; /* s/g length */
uint32_t xsvc_mem_size; /* length of mem in bytes */
uint32_t xsvc_sg_list; /* returned scatter gather list */
} xsvc_mem_req_32;
#pragma pack()
/* xsvc_sg_list format */
#pragma pack(1)
typedef struct _xsvc_mloc_32 {
uint64_t mloc_addr;
uint32_t mloc_size;
} xsvc_mloc_32;
#pragma pack()
/* avl node */
typedef struct xsvc_mnode_s {
avl_node_t mn_link;
uint64_t mn_key;
struct xsvc_mem_s *mn_home;
} xsvc_mnode_t;
/* track memory allocs */
typedef struct xsvc_mem_s {
xsvc_mnode_t xm_mnode;
size_t xm_size;
caddr_t xm_addr;
size_t xm_real_length;
ddi_dma_handle_t xm_dma_handle;
ddi_acc_handle_t xm_mem_handle;
ddi_dma_attr_t xm_dma_attr;
ddi_device_acc_attr_t xm_device_attr;
uint_t xm_cookie_count;
ddi_dma_cookie_t xm_cookie;
} xsvc_mem_t;
/* list of memory allocs */
typedef struct xsvc_mlist_s {
kmutex_t ml_mutex;
avl_tree_t ml_avl;
} xsvc_mlist_t;
/* driver state */
typedef struct xsvc_state_s {
dev_info_t *xs_dip;
int xs_instance;
/*
* track total memory allocated, mutex only covers
* xs_currently_alloced
*/
kmutex_t xs_mutex;
uint64_t xs_currently_alloced;
kmutex_t xs_cookie_mutex;
xsvc_mlist_t xs_mlist;
} xsvc_state_t;
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_XSVC_H */
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