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 | |
35 | /* Set Context Options */ |
36 | #define GRU_SET_CONTEXT_OPTION _IOWR(GRU_IOCTL_NUM, 4, void *) |
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 | |
47 | /* For dumpping GRU chiplet state */ |
48 | #define GRU_DUMP_CHIPLET_STATE _IOWR(GRU_IOCTL_NUM, 11, void *) |
49 | |
50 | /* For getting gseg statistics */ |
51 | #define GRU_GET_GSEG_STATISTICS _IOWR(GRU_IOCTL_NUM, 12, void *) |
52 | |
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 | |
59 | /* Various kernel self-tests */ |
60 | #define GRU_KTEST _IOWR(GRU_IOCTL_NUM, 52, void *) |
61 | |
62 | #define CONTEXT_WINDOW_BYTES(th) (GRU_GSEG_PAGESIZE * (th)) |
63 | #define THREAD_POINTER(p, th) (p + GRU_GSEG_PAGESIZE * (th)) |
64 | #define GSEG_START(cb) ((void *)((unsigned long)(cb) & ~(GRU_GSEG_PAGESIZE - 1))) |
65 | |
66 | struct gru_get_gseg_statistics_req { |
67 | unsigned long gseg; |
68 | struct gru_gseg_statistics stats; |
69 | }; |
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; |
80 | unsigned char tlb_preload_count; |
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 | |
90 | /* |
91 | * Structure used to set context options |
92 | */ |
93 | enum {sco_gseg_owner, sco_cch_req_slice, sco_blade_chiplet}; |
94 | struct gru_set_context_option_req { |
95 | unsigned long gseg; |
96 | int op; |
97 | int val0; |
98 | long val1; |
99 | }; |
100 | |
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 | |
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; |
116 | unsigned int gid; |
117 | int ctxnum; |
118 | char data_opt; |
119 | char lock_cch; |
120 | char flush_cbrs; |
121 | char fill[10]; |
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 { |
131 | unsigned int ; |
132 | unsigned int ; |
133 | unsigned char ; |
134 | unsigned char ; |
135 | unsigned char ; |
136 | pid_t ; |
137 | unsigned long ; |
138 | int ; |
139 | unsigned long []; |
140 | }; |
141 | |
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__ */ |
154 | |