60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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/*
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* OPAL Runtime Diagnostics interface driver
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* Supported on POWERNV platform
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*
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* (C) Copyright IBM 2015
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*
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* Author: Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com>
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* Author: Jeremy Kerr <jk@ozlabs.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _UAPI_ASM_POWERPC_OPAL_PRD_H_
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#define _UAPI_ASM_POWERPC_OPAL_PRD_H_
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#include <linux/types.h>
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/**
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* The version of the kernel interface of the PRD system. This describes the
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* interface available for the /dev/opal-prd device. The actual PRD message
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* layout and content is private to the firmware <--> userspace interface, so
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* is not covered by this versioning.
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*
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* Future interface versions are backwards-compatible; if a later kernel
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* version is encountered, functionality provided in earlier versions
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* will work.
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*/
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#define OPAL_PRD_KERNEL_VERSION 1
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#define OPAL_PRD_GET_INFO _IOR('o', 0x01, struct opal_prd_info)
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#define OPAL_PRD_SCOM_READ _IOR('o', 0x02, struct opal_prd_scom)
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#define OPAL_PRD_SCOM_WRITE _IOW('o', 0x03, struct opal_prd_scom)
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#ifndef __ASSEMBLY__
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struct opal_prd_info {
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__u64 version;
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__u64 reserved[3];
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};
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struct opal_prd_scom {
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__u64 chip;
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__u64 addr;
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__u64 data;
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__s64 rc;
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};
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#endif /* __ASSEMBLY__ */
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#endif /* _UAPI_ASM_POWERPC_OPAL_PRD_H */
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