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/******************************************************************************
* multicall.h
*
* Copyright (c) 2003-2004, K A Fraser
*
* This file may be distributed separately from the Linux kernel, or
* incorporated into other software packages, subject to the following license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this source file (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy, modify,
* merge, publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef __MULTICALL_H__
#define __MULTICALL_H__
#include <asm-xen/hypervisor.h>
extern multicall_entry_t multicall_list[];
extern int nr_multicall_ents;
static inline void queue_multicall0(unsigned long op)
{
int i = nr_multicall_ents;
multicall_list[i].op = op;
nr_multicall_ents = i+1;
}
static inline void queue_multicall1(unsigned long op, unsigned long arg1)
{
int i = nr_multicall_ents;
multicall_list[i].op = op;
multicall_list[i].args[0] = arg1;
nr_multicall_ents = i+1;
}
static inline void queue_multicall2(
unsigned long op, unsigned long arg1, unsigned long arg2)
{
int i = nr_multicall_ents;
multicall_list[i].op = op;
multicall_list[i].args[0] = arg1;
multicall_list[i].args[1] = arg2;
nr_multicall_ents = i+1;
}
static inline void queue_multicall3(
unsigned long op, unsigned long arg1, unsigned long arg2,
unsigned long arg3)
{
int i = nr_multicall_ents;
multicall_list[i].op = op;
multicall_list[i].args[0] = arg1;
multicall_list[i].args[1] = arg2;
multicall_list[i].args[2] = arg3;
nr_multicall_ents = i+1;
}
static inline void queue_multicall4(
unsigned long op, unsigned long arg1, unsigned long arg2,
unsigned long arg3, unsigned long arg4)
{
int i = nr_multicall_ents;
multicall_list[i].op = op;
multicall_list[i].args[0] = arg1;
multicall_list[i].args[1] = arg2;
multicall_list[i].args[2] = arg3;
multicall_list[i].args[3] = arg4;
nr_multicall_ents = i+1;
}
static inline void queue_multicall5(
unsigned long op, unsigned long arg1, unsigned long arg2,
unsigned long arg3, unsigned long arg4, unsigned long arg5)
{
int i = nr_multicall_ents;
multicall_list[i].op = op;
multicall_list[i].args[0] = arg1;
multicall_list[i].args[1] = arg2;
multicall_list[i].args[2] = arg3;
multicall_list[i].args[3] = arg4;
multicall_list[i].args[4] = arg5;
nr_multicall_ents = i+1;
}
static inline void execute_multicall_list(void)
{
if ( unlikely(nr_multicall_ents == 0) ) return;
(void)HYPERVISOR_multicall(multicall_list, nr_multicall_ents);
nr_multicall_ents = 0;
}
#endif /* __MULTICALL_H__ */
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