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 */ 43