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13d19498 JS |
1 | /* |
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 | */ | |
33 | #if defined CONFIG_IA64 | |
34 | #define GRU_GSEG_PAGESIZE (256 * 1024UL) | |
35 | #elif defined CONFIG_X86_64 | |
36 | #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 | */ | |
44 | struct 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 | ||
56 | /* Flags for GRU options on the gru_create_context() call */ | |
57 | /* Select one of the follow 4 options to specify how TLB misses are handled */ | |
58 | #define GRU_OPT_MISS_DEFAULT 0x0000 /* Use default mode */ | |
59 | #define GRU_OPT_MISS_USER_POLL 0x0001 /* User will poll CB for faults */ | |
60 | #define GRU_OPT_MISS_FMM_INTR 0x0002 /* Send interrupt to cpu to | |
61 | handle fault */ | |
62 | #define GRU_OPT_MISS_FMM_POLL 0x0003 /* Use system polling thread */ | |
63 | #define GRU_OPT_MISS_MASK 0x0003 /* Mask for TLB MISS option */ | |
64 | ||
65 | ||
66 | ||
67 | #endif /* __GRU_H__ */ |