| Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation, version 2. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| 11 | * NON INFRINGEMENT. See the GNU General Public License for |
| 12 | * more details. |
| 13 | */ |
| 14 | |
| 15 | /** |
| 16 | * @file syscall.h |
| 17 | * Indices for the hypervisor system calls that are intended to be called |
| 18 | * directly, rather than only through hypervisor-generated "glue" code. |
| 19 | */ |
| 20 | |
| 21 | #ifndef _SYS_HV_INCLUDE_SYSCALL_PUBLIC_H |
| 22 | #define _SYS_HV_INCLUDE_SYSCALL_PUBLIC_H |
| 23 | |
| 24 | /** Fast syscall flag bit location. When this bit is set, the hypervisor |
| 25 | * handles the syscall specially. |
| 26 | */ |
| 27 | #define HV_SYS_FAST_SHIFT 14 |
| 28 | |
| 29 | /** Fast syscall flag bit mask. */ |
| 30 | #define HV_SYS_FAST_MASK (1 << HV_SYS_FAST_SHIFT) |
| 31 | |
| 32 | /** Bit location for flagging fast syscalls that can be called from PL0. */ |
| 33 | #define HV_SYS_FAST_PLO_SHIFT 13 |
| 34 | |
| 35 | /** Fast syscall allowing PL0 bit mask. */ |
| 36 | #define HV_SYS_FAST_PL0_MASK (1 << HV_SYS_FAST_PLO_SHIFT) |
| 37 | |
| 38 | /** Perform an MF that waits for all victims to reach DRAM. */ |
| 39 | #define HV_SYS_fence_incoherent (51 | HV_SYS_FAST_MASK \ |
| 40 | | HV_SYS_FAST_PL0_MASK) |
| 41 | |
| 42 | #endif /* !_SYS_HV_INCLUDE_SYSCALL_PUBLIC_H */ |