projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| e2be04c7 | 1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
| 0d7cd855 JK |
2 | /* |
| 3 | * OPAL Runtime Diagnostics interface driver | |
| 4 | * Supported on POWERNV platform | |
| 5 | * | |
| 6 | * (C) Copyright IBM 2015 | |
| 7 | * | |
| 8 | * Author: Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com> | |
| 9 | * Author: Jeremy Kerr <jk@ozlabs.org> | |
| 10 | * | |
| 11 | * This program is free software; you can redistribute it and/or modify | |
| 12 | * it under the terms of the GNU General Public License as published by | |
| 13 | * the Free Software Foundation; either version 2, or (at your option) | |
| 14 | * any later version. | |
| 15 | * | |
| 16 | * This program is distributed in the hope that it will be useful, | |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | * GNU General Public License for more details. | |
| 20 | */ | |
| 21 | ||
| 22 | #ifndef _UAPI_ASM_POWERPC_OPAL_PRD_H_ | |
| 23 | #define _UAPI_ASM_POWERPC_OPAL_PRD_H_ | |
| 24 | ||
| 25 | #include <linux/types.h> | |
| 26 | ||
| 27 | /** | |
| 28 | * The version of the kernel interface of the PRD system. This describes the | |
| 29 | * interface available for the /dev/opal-prd device. The actual PRD message | |
| 30 | * layout and content is private to the firmware <--> userspace interface, so | |
| 31 | * is not covered by this versioning. | |
| 32 | * | |
| 33 | * Future interface versions are backwards-compatible; if a later kernel | |
| 34 | * version is encountered, functionality provided in earlier versions | |
| 35 | * will work. | |
| 36 | */ | |
| 37 | #define OPAL_PRD_KERNEL_VERSION 1 | |
| 38 | ||
| 39 | #define OPAL_PRD_GET_INFO _IOR('o', 0x01, struct opal_prd_info) | |
| 40 | #define OPAL_PRD_SCOM_READ _IOR('o', 0x02, struct opal_prd_scom) | |
| 41 | #define OPAL_PRD_SCOM_WRITE _IOW('o', 0x03, struct opal_prd_scom) | |
| 42 | ||
| 43 | #ifndef __ASSEMBLY__ | |
| 44 | ||
| 45 | struct opal_prd_info { | |
| 46 | __u64 version; | |
| 47 | __u64 reserved[3]; | |
| 48 | }; | |
| 49 | ||
| 50 | struct opal_prd_scom { | |
| 51 | __u64 chip; | |
| 52 | __u64 addr; | |
| 53 | __u64 data; | |
| 54 | __s64 rc; | |
| 55 | }; | |
| 56 | ||
| 57 | #endif /* __ASSEMBLY__ */ | |
| 58 | ||
| 59 | #endif /* _UAPI_ASM_POWERPC_OPAL_PRD_H */ |