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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 __GRULIB_H__ | |
20 | #define __GRULIB_H__ | |
21 | ||
22 | #define GRU_BASENAME "gru" | |
23 | #define GRU_FULLNAME "/dev/gru" | |
24 | #define GRU_IOCTL_NUM 'G' | |
25 | ||
26 | /* | |
27 | * Maximum number of GRU segments that a user can have open | |
28 | * ZZZ temp - set high for testing. Revisit. | |
29 | */ | |
30 | #define GRU_MAX_OPEN_CONTEXTS 32 | |
31 | ||
32 | /* Set Number of Request Blocks */ | |
33 | #define GRU_CREATE_CONTEXT _IOWR(GRU_IOCTL_NUM, 1, void *) | |
34 | ||
92b39388 JS |
35 | /* Set Context Options */ |
36 | #define GRU_SET_CONTEXT_OPTION _IOWR(GRU_IOCTL_NUM, 4, void *) | |
13d19498 JS |
37 | |
38 | /* Fetch exception detail */ | |
39 | #define GRU_USER_GET_EXCEPTION_DETAIL _IOWR(GRU_IOCTL_NUM, 6, void *) | |
40 | ||
41 | /* For user call_os handling - normally a TLB fault */ | |
42 | #define GRU_USER_CALL_OS _IOWR(GRU_IOCTL_NUM, 8, void *) | |
43 | ||
44 | /* For user unload context */ | |
45 | #define GRU_USER_UNLOAD_CONTEXT _IOWR(GRU_IOCTL_NUM, 9, void *) | |
46 | ||
9cc9b056 JS |
47 | /* For dumpping GRU chiplet state */ |
48 | #define GRU_DUMP_CHIPLET_STATE _IOWR(GRU_IOCTL_NUM, 11, void *) | |
49 | ||
7e796a72 JS |
50 | /* For getting gseg statistics */ |
51 | #define GRU_GET_GSEG_STATISTICS _IOWR(GRU_IOCTL_NUM, 12, void *) | |
52 | ||
13d19498 JS |
53 | /* For user TLB flushing (primarily for tests) */ |
54 | #define GRU_USER_FLUSH_TLB _IOWR(GRU_IOCTL_NUM, 50, void *) | |
55 | ||
56 | /* Get some config options (primarily for tests & emulator) */ | |
57 | #define GRU_GET_CONFIG_INFO _IOWR(GRU_IOCTL_NUM, 51, void *) | |
58 | ||
eb5bd5e5 JS |
59 | /* Various kernel self-tests */ |
60 | #define GRU_KTEST _IOWR(GRU_IOCTL_NUM, 52, void *) | |
61 | ||
13d19498 JS |
62 | #define CONTEXT_WINDOW_BYTES(th) (GRU_GSEG_PAGESIZE * (th)) |
63 | #define THREAD_POINTER(p, th) (p + GRU_GSEG_PAGESIZE * (th)) | |
7e796a72 JS |
64 | #define GSEG_START(cb) ((void *)((unsigned long)(cb) & ~(GRU_GSEG_PAGESIZE - 1))) |
65 | ||
7e796a72 | 66 | struct gru_get_gseg_statistics_req { |
5958ab88 JS |
67 | unsigned long gseg; |
68 | struct gru_gseg_statistics stats; | |
7e796a72 | 69 | }; |
13d19498 JS |
70 | |
71 | /* | |
72 | * Structure used to pass TLB flush parameters to the driver | |
73 | */ | |
74 | struct gru_create_context_req { | |
75 | unsigned long gseg; | |
76 | unsigned int data_segment_bytes; | |
77 | unsigned int control_blocks; | |
78 | unsigned int maximum_thread_count; | |
79 | unsigned int options; | |
c550222f | 80 | unsigned char tlb_preload_count; |
13d19498 JS |
81 | }; |
82 | ||
83 | /* | |
84 | * Structure used to pass unload context parameters to the driver | |
85 | */ | |
86 | struct gru_unload_context_req { | |
87 | unsigned long gseg; | |
88 | }; | |
89 | ||
92b39388 JS |
90 | /* |
91 | * Structure used to set context options | |
92 | */ | |
518e5cd4 | 93 | enum {sco_gseg_owner, sco_cch_req_slice, sco_blade_chiplet}; |
92b39388 JS |
94 | struct gru_set_context_option_req { |
95 | unsigned long gseg; | |
96 | int op; | |
518e5cd4 JS |
97 | int val0; |
98 | long val1; | |
92b39388 JS |
99 | }; |
100 | ||
13d19498 JS |
101 | /* |
102 | * Structure used to pass TLB flush parameters to the driver | |
103 | */ | |
104 | struct gru_flush_tlb_req { | |
105 | unsigned long gseg; | |
106 | unsigned long vaddr; | |
107 | size_t len; | |
108 | }; | |
109 | ||
9cc9b056 JS |
110 | /* |
111 | * Structure used to pass TLB flush parameters to the driver | |
112 | */ | |
113 | enum {dcs_pid, dcs_gid}; | |
114 | struct gru_dump_chiplet_state_req { | |
115 | unsigned int op; | |
2b702b28 | 116 | unsigned int gid; |
9cc9b056 JS |
117 | int ctxnum; |
118 | char data_opt; | |
119 | char lock_cch; | |
b8229bed JS |
120 | char flush_cbrs; |
121 | char fill[10]; | |
9cc9b056 JS |
122 | pid_t pid; |
123 | void *buf; | |
124 | size_t buflen; | |
125 | /* ---- output --- */ | |
126 | unsigned int num_contexts; | |
127 | }; | |
128 | ||
129 | #define GRU_DUMP_MAGIC 0x3474ab6c | |
130 | struct gru_dump_context_header { | |
131 | unsigned int magic; | |
2b702b28 | 132 | unsigned int gid; |
9cc9b056 JS |
133 | unsigned char ctxnum; |
134 | unsigned char cbrcnt; | |
135 | unsigned char dsrcnt; | |
136 | pid_t pid; | |
137 | unsigned long vaddr; | |
138 | int cch_locked; | |
139 | unsigned long data[0]; | |
140 | }; | |
141 | ||
13d19498 JS |
142 | /* |
143 | * GRU configuration info (temp - for testing) | |
144 | */ | |
145 | struct gru_config_info { | |
146 | int cpus; | |
147 | int blades; | |
148 | int nodes; | |
149 | int chiplets; | |
150 | int fill[16]; | |
151 | }; | |
152 | ||
153 | #endif /* __GRULIB_H__ */ |