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59 lines
1.7 KiB
59 lines
1.7 KiB
/* 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 <[email protected]> |
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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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