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