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. */
27struct 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 */
39struct 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 */
51