[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / misc / vmw_vmci / vmci_doorbell.h

/*
 * VMware VMCI Driver
 *
 * Copyright (C) 2012 VMware, Inc. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation version 2 and no later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * for more details.
 */

#ifndef VMCI_DOORBELL_H
#define VMCI_DOORBELL_H

#include <linux/vmw_vmci_defs.h>
#include <linux/types.h>

#include "vmci_driver.h"

/*
 * VMCINotifyResourceInfo: Used to create and destroy doorbells, and
 * generate a notification for a doorbell or queue pair.
 */
struct vmci_dbell_notify_resource_info {
	struct vmci_handle handle;
	u16 resource;
	u16 action;
	s32 result;
};

/*
 * Structure used for checkpointing the doorbell mappings. It is
 * written to the checkpoint as is, so changing this structure will
 * break checkpoint compatibility.
 */
struct dbell_cpt_state {
	struct vmci_handle handle;
	u64 bitmap_idx;
};

int vmci_dbell_host_context_notify(u32 src_cid, struct vmci_handle handle);
int vmci_dbell_get_priv_flags(struct vmci_handle handle, u32 *priv_flags);

bool vmci_dbell_register_notification_bitmap(u32 bitmap_ppn);
void vmci_dbell_scan_notification_entries(u8 *bitmap);

#endif /* VMCI_DOORBELL_H */
Commit	Line	Data
83e2ec76 GZ	1	/*
	2	* VMware VMCI Driver
	3	*
	4	* Copyright (C) 2012 VMware, Inc. All rights reserved.
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation version 2 and no later version.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	12	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	13	* for more details.
	14	*/
	15
	16	#ifndef VMCI_DOORBELL_H
	17	#define VMCI_DOORBELL_H
	18
	19	#include <linux/vmw_vmci_defs.h>
	20	#include <linux/types.h>
	21
	22	#include "vmci_driver.h"
	23
	24	/*
	25	* VMCINotifyResourceInfo: Used to create and destroy doorbells, and
	26	* generate a notification for a doorbell or queue pair.
	27	*/
	28	struct vmci_dbell_notify_resource_info {
	29	struct vmci_handle handle;
	30	u16 resource;
	31	u16 action;
	32	s32 result;
	33	};
	34
	35	/*
	36	* Structure used for checkpointing the doorbell mappings. It is
	37	* written to the checkpoint as is, so changing this structure will
	38	* break checkpoint compatibility.
	39	*/
	40	struct dbell_cpt_state {
	41	struct vmci_handle handle;
	42	u64 bitmap_idx;
	43	};
	44
	45	int vmci_dbell_host_context_notify(u32 src_cid, struct vmci_handle handle);
	46	int vmci_dbell_get_priv_flags(struct vmci_handle handle, u32 *priv_flags);
	47
	48	bool vmci_dbell_register_notification_bitmap(u32 bitmap_ppn);
	49	void vmci_dbell_scan_notification_entries(u8 *bitmap);
	50
	51	#endif /* VMCI_DOORBELL_H */