cregit-Linux how code gets into the kernel

Release 4.14 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 */

Overall Contributors

PersonTokensPropCommitsCommitProp
Alexander Graf20498.55%250.00%
Adam Buchbinder20.97%125.00%
Greg Kroah-Hartman10.48%125.00%
Total207100.00%4100.00%
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