1/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */ 2/* 3 * ePAPR hcall interface 4 * 5 * Copyright 2008-2011 Freescale Semiconductor, Inc. 6 * 7 * Author: Timur Tabi <timur@freescale.com> 8 * 9 * This file is provided under a dual BSD/GPL license. When using or 10 * redistributing this file, you may do so under either license. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions are met: 14 * * Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * * Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * * Neither the name of Freescale Semiconductor nor the 20 * names of its contributors may be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * 24 * ALTERNATIVELY, this software may be distributed under the terms of the 25 * GNU General Public License ("GPL") as published by the Free Software 26 * Foundation, either version 2 of that License or (at your option) any 27 * later version. 28 * 29 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY 30 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 31 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 32 * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY 33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 35 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 36 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 38 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41#ifndef _UAPI_ASM_POWERPC_EPAPR_HCALLS_H 42#define _UAPI_ASM_POWERPC_EPAPR_HCALLS_H 43 44#define EV_BYTE_CHANNEL_SEND 1 45#define EV_BYTE_CHANNEL_RECEIVE 2 46#define EV_BYTE_CHANNEL_POLL 3 47#define EV_INT_SET_CONFIG 4 48#define EV_INT_GET_CONFIG 5 49#define EV_INT_SET_MASK 6 50#define EV_INT_GET_MASK 7 51#define EV_INT_IACK 9 52#define EV_INT_EOI 10 53#define EV_INT_SEND_IPI 11 54#define EV_INT_SET_TASK_PRIORITY 12 55#define EV_INT_GET_TASK_PRIORITY 13 56#define EV_DOORBELL_SEND 14 57#define EV_MSGSND 15 58#define EV_IDLE 16 59 60/* vendor ID: epapr */ 61#define EV_LOCAL_VENDOR_ID 0 /* for private use */ 62#define EV_EPAPR_VENDOR_ID 1 63#define EV_FSL_VENDOR_ID 2 /* Freescale Semiconductor */ 64#define EV_IBM_VENDOR_ID 3 /* IBM */ 65#define EV_GHS_VENDOR_ID 4 /* Green Hills Software */ 66#define EV_ENEA_VENDOR_ID 5 /* Enea */ 67#define EV_WR_VENDOR_ID 6 /* Wind River Systems */ 68#define EV_AMCC_VENDOR_ID 7 /* Applied Micro Circuits */ 69#define EV_KVM_VENDOR_ID 42 /* KVM */ 70 71/* The max number of bytes that a byte channel can send or receive per call */ 72#define EV_BYTE_CHANNEL_MAX_BYTES 16 73 74 75#define _EV_HCALL_TOKEN(id, num) (((id) << 16) | (num)) 76#define EV_HCALL_TOKEN(hcall_num) _EV_HCALL_TOKEN(EV_EPAPR_VENDOR_ID, hcall_num) 77 78/* epapr return codes */ 79#define EV_SUCCESS 0 80#define EV_EPERM 1 /* Operation not permitted */ 81#define EV_ENOENT 2 /* Entry Not Found */ 82#define EV_EIO 3 /* I/O error occurred */ 83#define EV_EAGAIN 4 /* The operation had insufficient 84 * resources to complete and should be 85 * retried 86 */ 87#define EV_ENOMEM 5 /* There was insufficient memory to 88 * complete the operation */ 89#define EV_EFAULT 6 /* Bad guest address */ 90#define EV_ENODEV 7 /* No such device */ 91#define EV_EINVAL 8 /* An argument supplied to the hcall 92 was out of range or invalid */ 93#define EV_INTERNAL 9 /* An internal error occurred */ 94#define EV_CONFIG 10 /* A configuration error was detected */ 95#define EV_INVALID_STATE 11 /* The object is in an invalid state */ 96#define EV_UNIMPLEMENTED 12 /* Unimplemented hypercall */ 97#define EV_BUFFER_OVERFLOW 13 /* Caller-supplied buffer too small */ 98 99#endif /* _UAPI_ASM_POWERPC_EPAPR_HCALLS_H */ 100