| Syed Rameez Mustafa | 37f9347 | 2013-03-18 15:49:48 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/kernel.h> |
| 15 | |
| 16 | #include <mach/scm.h> |
| 17 | |
| 18 | #define ERR_FATAL_ENABLE 0x0 |
| 19 | #define ERR_FATAL_DISABLE 0x1 |
| 20 | #define ERR_FATAL_READ 0x2 |
| 21 | #define XPU_ERR_FATAL 0xe |
| 22 | |
| 23 | static int __init xpu_err_fatal_init(void) |
| 24 | { |
| 25 | int ret, response; |
| 26 | struct { |
| 27 | unsigned int config; |
| 28 | unsigned int spare; |
| 29 | } cmd; |
| 30 | cmd.config = ERR_FATAL_ENABLE; |
| 31 | cmd.spare = 0; |
| 32 | |
| 33 | ret = scm_call(SCM_SVC_MP, XPU_ERR_FATAL, &cmd, sizeof(cmd), &response, |
| 34 | sizeof(response)); |
| 35 | |
| 36 | if (ret != 0) |
| 37 | pr_warn("Failed to set XPU violations as fatal errors: %d\n", |
| 38 | ret); |
| 39 | else |
| 40 | pr_info("Configuring XPU violations to be fatal errors\n"); |
| 41 | |
| 42 | return ret; |
| 43 | } |
| 44 | early_initcall(xpu_err_fatal_init); |