Current File : //usr/src/linux-headers-5.15.0-43/arch/powerpc/include/uapi/asm/epapr_hcalls.h
/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
* ePAPR hcall interface
*
* Copyright 2008-2011 Freescale Semiconductor, Inc.
*
* Author: Timur Tabi <timur@freescale.com>
*
* This file is provided under a dual BSD/GPL license. When using or
* redistributing this file, you may do so under either license.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _UAPI_ASM_POWERPC_EPAPR_HCALLS_H
#define _UAPI_ASM_POWERPC_EPAPR_HCALLS_H
#define EV_BYTE_CHANNEL_SEND 1
#define EV_BYTE_CHANNEL_RECEIVE 2
#define EV_BYTE_CHANNEL_POLL 3
#define EV_INT_SET_CONFIG 4
#define EV_INT_GET_CONFIG 5
#define EV_INT_SET_MASK 6
#define EV_INT_GET_MASK 7
#define EV_INT_IACK 9
#define EV_INT_EOI 10
#define EV_INT_SEND_IPI 11
#define EV_INT_SET_TASK_PRIORITY 12
#define EV_INT_GET_TASK_PRIORITY 13
#define EV_DOORBELL_SEND 14
#define EV_MSGSND 15
#define EV_IDLE 16
/* vendor ID: epapr */
#define EV_LOCAL_VENDOR_ID 0 /* for private use */
#define EV_EPAPR_VENDOR_ID 1
#define EV_FSL_VENDOR_ID 2 /* Freescale Semiconductor */
#define EV_IBM_VENDOR_ID 3 /* IBM */
#define EV_GHS_VENDOR_ID 4 /* Green Hills Software */
#define EV_ENEA_VENDOR_ID 5 /* Enea */
#define EV_WR_VENDOR_ID 6 /* Wind River Systems */
#define EV_AMCC_VENDOR_ID 7 /* Applied Micro Circuits */
#define EV_KVM_VENDOR_ID 42 /* KVM */
/* The max number of bytes that a byte channel can send or receive per call */
#define EV_BYTE_CHANNEL_MAX_BYTES 16
#define _EV_HCALL_TOKEN(id, num) (((id) << 16) | (num))
#define EV_HCALL_TOKEN(hcall_num) _EV_HCALL_TOKEN(EV_EPAPR_VENDOR_ID, hcall_num)
/* epapr return codes */
#define EV_SUCCESS 0
#define EV_EPERM 1 /* Operation not permitted */
#define EV_ENOENT 2 /* Entry Not Found */
#define EV_EIO 3 /* I/O error occurred */
#define EV_EAGAIN 4 /* The operation had insufficient
* resources to complete and should be
* retried
*/
#define EV_ENOMEM 5 /* There was insufficient memory to
* complete the operation */
#define EV_EFAULT 6 /* Bad guest address */
#define EV_ENODEV 7 /* No such device */
#define EV_EINVAL 8 /* An argument supplied to the hcall
was out of range or invalid */
#define EV_INTERNAL 9 /* An internal error occurred */
#define EV_CONFIG 10 /* A configuration error was detected */
#define EV_INVALID_STATE 11 /* The object is in an invalid state */
#define EV_UNIMPLEMENTED 12 /* Unimplemented hypercall */
#define EV_BUFFER_OVERFLOW 13 /* Caller-supplied buffer too small */
#endif /* _UAPI_ASM_POWERPC_EPAPR_HCALLS_H */
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