mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 17:59:33 +07:00
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
|
/*
|
||
|
|
* Hypervisor Maintenance Interrupt header file.
|
||
|
|
*
|
||
|
|
* 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; either version 2 of the License, or
|
||
|
|
* (at your option) any 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.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program.
|
||
|
|
*
|
||
|
|
* Copyright 2015 IBM Corporation
|
||
|
|
* Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __ASM_PPC64_HMI_H__
|
||
|
|
#define __ASM_PPC64_HMI_H__
|
||
|
|
|
||
|
|
#ifdef CONFIG_PPC_BOOK3S_64
|
||
|
|
|
||
|
|
#define CORE_TB_RESYNC_REQ_BIT 63
|
||
|
|
#define MAX_SUBCORE_PER_CORE 4
|
||
|
|
|
||
|
|
/*
|
||
|
|
* sibling_subcore_state structure is used to co-ordinate all threads
|
||
|
|
* during HMI to avoid TB corruption. This structure is allocated once
|
||
|
|
* per each core and shared by all threads on that core.
|
||
|
|
*/
|
||
|
|
struct sibling_subcore_state {
|
||
|
|
unsigned long flags;
|
||
|
|
u8 in_guest[MAX_SUBCORE_PER_CORE];
|
||
|
|
};
|
||
|
|
|
||
|
|
extern void wait_for_subcore_guest_exit(void);
|
||
|
|
extern void wait_for_tb_resync(void);
|
||
|
|
#else
|
||
|
|
static inline void wait_for_subcore_guest_exit(void) { }
|
||
|
|
static inline void wait_for_tb_resync(void) { }
|
||
|
|
#endif
|
||
|
|
#endif /* __ASM_PPC64_HMI_H__ */
|