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alistair23-linux/arch/powerpc/include/uapi/asm/opal-prd.h

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License cleanup: add SPDX license identifier to uapi header files with a license Many user space API headers have licensing information, which is either incomplete, badly formatted or just a shorthand for referring to the license under which the file is supposed to be. This makes it hard for compliance tools to determine the correct license. Update these files with an SPDX license identifier. The identifier was chosen based on the license information in the file. GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license identifier with the added 'WITH Linux-syscall-note' exception, which is the officially assigned exception identifier for the kernel syscall exception: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". This exception makes it possible to include GPL headers into non GPL code, without confusing license compliance tools. Headers which have either explicit dual licensing or are just licensed under a non GPL license are updated with the corresponding SPDX identifier and the GPLv2 with syscall exception identifier. The format is: ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE) SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. The update does not remove existing license information as this has to be done on a case by case basis and the copyright holders might have to be consulted. This will happen in a separate step. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 08:09:13 -06:00
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
powerpc/powernv: Add opal-prd channel This change adds a char device to access the "PRD" (processor runtime diagnostics) channel to OPAL firmware. Includes contributions from Vaidyanathan Srinivasan, Neelesh Gupta & Vishal Kulkarni. Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-06-04 07:51:47 -06:00
/*
* OPAL Runtime Diagnostics interface driver
* Supported on POWERNV platform
*
* (C) Copyright IBM 2015
*
* Author: Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com>
* Author: Jeremy Kerr <jk@ozlabs.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _UAPI_ASM_POWERPC_OPAL_PRD_H_
#define _UAPI_ASM_POWERPC_OPAL_PRD_H_
#include <linux/types.h>
/**
* The version of the kernel interface of the PRD system. This describes the
* interface available for the /dev/opal-prd device. The actual PRD message
* layout and content is private to the firmware <--> userspace interface, so
* is not covered by this versioning.
*
* Future interface versions are backwards-compatible; if a later kernel
* version is encountered, functionality provided in earlier versions
* will work.
*/
#define OPAL_PRD_KERNEL_VERSION 1
#define OPAL_PRD_GET_INFO _IOR('o', 0x01, struct opal_prd_info)
#define OPAL_PRD_SCOM_READ _IOR('o', 0x02, struct opal_prd_scom)
#define OPAL_PRD_SCOM_WRITE _IOW('o', 0x03, struct opal_prd_scom)
#ifndef __ASSEMBLY__
struct opal_prd_info {
__u64 version;
__u64 reserved[3];
};
struct opal_prd_scom {
__u64 chip;
__u64 addr;
__u64 data;
__s64 rc;
};
#endif /* __ASSEMBLY__ */
#endif /* _UAPI_ASM_POWERPC_OPAL_PRD_H */
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