| /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
| /* |
| * 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 */ |
