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Jack Steiner13d19492008-07-29 22:33:55 -07001/*
2 * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published by
6 * the Free Software Foundation; either version 2.1 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19#ifndef __GRU_H__
20#define __GRU_H__
21
22/*
23 * GRU architectural definitions
24 */
25#define GRU_CACHE_LINE_BYTES 64
26#define GRU_HANDLE_STRIDE 256
27#define GRU_CB_BASE 0
28#define GRU_DS_BASE 0x20000
29
30/*
31 * Size used to map GRU GSeg
32 */
Jack Steiner923f7f62008-10-15 22:05:13 -070033#if defined(CONFIG_IA64)
Jack Steiner13d19492008-07-29 22:33:55 -070034#define GRU_GSEG_PAGESIZE (256 * 1024UL)
Jack Steiner923f7f62008-10-15 22:05:13 -070035#elif defined(CONFIG_X86_64)
Jack Steiner13d19492008-07-29 22:33:55 -070036#define GRU_GSEG_PAGESIZE (256 * 1024UL) /* ZZZ 2MB ??? */
37#else
38#error "Unsupported architecture"
39#endif
40
41/*
42 * Structure for obtaining GRU resource information
43 */
44struct gru_chiplet_info {
45 int node;
46 int chiplet;
47 int blade;
48 int total_dsr_bytes;
49 int total_cbr;
50 int total_user_dsr_bytes;
51 int total_user_cbr;
52 int free_user_dsr_bytes;
53 int free_user_cbr;
54};
55
Jack Steiner5958ab82009-12-15 16:48:18 -080056/*
57 * Statictics kept for each context.
58 */
59struct gru_gseg_statistics {
60 unsigned long fmm_tlbmiss;
61 unsigned long upm_tlbmiss;
62 unsigned long tlbdropin;
63 unsigned long context_stolen;
64 unsigned long reserved[10];
65};
66
Jack Steiner13d19492008-07-29 22:33:55 -070067/* Flags for GRU options on the gru_create_context() call */
68/* Select one of the follow 4 options to specify how TLB misses are handled */
69#define GRU_OPT_MISS_DEFAULT 0x0000 /* Use default mode */
70#define GRU_OPT_MISS_USER_POLL 0x0001 /* User will poll CB for faults */
71#define GRU_OPT_MISS_FMM_INTR 0x0002 /* Send interrupt to cpu to
72 handle fault */
73#define GRU_OPT_MISS_FMM_POLL 0x0003 /* Use system polling thread */
74#define GRU_OPT_MISS_MASK 0x0003 /* Mask for TLB MISS option */
75
76
77
78#endif /* __GRU_H__ */