| Chris Metcalf | 5c77075 | 2011-03-01 13:01:49 -0500 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2011 Tilera Corporation. All Rights Reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation, version 2. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| 11 | * NON INFRINGEMENT. See the GNU General Public License for |
| 12 | * more details. |
| 13 | */ |
| 14 | |
| 15 | /** |
| 16 | * @file drv_mshim_intf.h |
| 17 | * Interface definitions for the Linux EDAC memory controller driver. |
| 18 | */ |
| 19 | |
| 20 | #ifndef _SYS_HV_INCLUDE_DRV_MSHIM_INTF_H |
| 21 | #define _SYS_HV_INCLUDE_DRV_MSHIM_INTF_H |
| 22 | |
| 23 | /** Number of memory controllers in the public API. */ |
| 24 | #define TILE_MAX_MSHIMS 4 |
| 25 | |
| 26 | /** Memory info under each memory controller. */ |
| 27 | struct mshim_mem_info |
| 28 | { |
| 29 | uint64_t mem_size; /**< Total memory size in bytes. */ |
| 30 | uint8_t mem_type; /**< Memory type, DDR2 or DDR3. */ |
| 31 | uint8_t mem_ecc; /**< Memory supports ECC. */ |
| 32 | }; |
| 33 | |
| 34 | /** |
| 35 | * DIMM error structure. |
| 36 | * For now, only correctable errors are counted and the mshim doesn't record |
| 37 | * the error PA. HV takes panic upon uncorrectable errors. |
| 38 | */ |
| 39 | struct mshim_mem_error |
| 40 | { |
| 41 | uint32_t sbe_count; /**< Number of single-bit errors. */ |
| 42 | }; |
| 43 | |
| 44 | /** Read this offset to get the memory info per mshim. */ |
| 45 | #define MSHIM_MEM_INFO_OFF 0x100 |
| 46 | |
| 47 | /** Read this offset to check DIMM error. */ |
| 48 | #define MSHIM_MEM_ERROR_OFF 0x200 |
| 49 | |
| 50 | #endif /* _SYS_HV_INCLUDE_DRV_MSHIM_INTF_H */ |