| Jack Steiner | 13d1949 | 2008-07-29 22:33:55 -0700 | [diff] [blame] | 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 | /* Register task as using the slice */ |
| 36 | #define GRU_SET_TASK_SLICE _IOWR(GRU_IOCTL_NUM, 5, 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 fetching GRU chiplet status */ |
| 48 | #define GRU_GET_CHIPLET_STATUS _IOWR(GRU_IOCTL_NUM, 10, void *) |
| 49 | |
| Jack Steiner | 9cc9b05 | 2009-06-17 16:28:19 -0700 | [diff] [blame^] | 50 | /* For dumpping GRU chiplet state */ |
| 51 | #define GRU_DUMP_CHIPLET_STATE _IOWR(GRU_IOCTL_NUM, 11, void *) |
| 52 | |
| Jack Steiner | 13d1949 | 2008-07-29 22:33:55 -0700 | [diff] [blame] | 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 | #define CONTEXT_WINDOW_BYTES(th) (GRU_GSEG_PAGESIZE * (th)) |
| 60 | #define THREAD_POINTER(p, th) (p + GRU_GSEG_PAGESIZE * (th)) |
| 61 | |
| 62 | /* |
| 63 | * Structure used to pass TLB flush parameters to the driver |
| 64 | */ |
| 65 | struct gru_create_context_req { |
| 66 | unsigned long gseg; |
| 67 | unsigned int data_segment_bytes; |
| 68 | unsigned int control_blocks; |
| 69 | unsigned int maximum_thread_count; |
| 70 | unsigned int options; |
| 71 | }; |
| 72 | |
| 73 | /* |
| 74 | * Structure used to pass unload context parameters to the driver |
| 75 | */ |
| 76 | struct gru_unload_context_req { |
| 77 | unsigned long gseg; |
| 78 | }; |
| 79 | |
| 80 | /* |
| 81 | * Structure used to pass TLB flush parameters to the driver |
| 82 | */ |
| 83 | struct gru_flush_tlb_req { |
| 84 | unsigned long gseg; |
| 85 | unsigned long vaddr; |
| 86 | size_t len; |
| 87 | }; |
| 88 | |
| 89 | /* |
| Jack Steiner | 9cc9b05 | 2009-06-17 16:28:19 -0700 | [diff] [blame^] | 90 | * Structure used to pass TLB flush parameters to the driver |
| 91 | */ |
| 92 | enum {dcs_pid, dcs_gid}; |
| 93 | struct gru_dump_chiplet_state_req { |
| 94 | unsigned int op; |
| 95 | int gid; |
| 96 | int ctxnum; |
| 97 | char data_opt; |
| 98 | char lock_cch; |
| 99 | pid_t pid; |
| 100 | void *buf; |
| 101 | size_t buflen; |
| 102 | /* ---- output --- */ |
| 103 | unsigned int num_contexts; |
| 104 | }; |
| 105 | |
| 106 | #define GRU_DUMP_MAGIC 0x3474ab6c |
| 107 | struct gru_dump_context_header { |
| 108 | unsigned int magic; |
| 109 | unsigned char gid; |
| 110 | unsigned char ctxnum; |
| 111 | unsigned char cbrcnt; |
| 112 | unsigned char dsrcnt; |
| 113 | pid_t pid; |
| 114 | unsigned long vaddr; |
| 115 | int cch_locked; |
| 116 | unsigned long data[0]; |
| 117 | }; |
| 118 | |
| 119 | /* |
| Jack Steiner | 13d1949 | 2008-07-29 22:33:55 -0700 | [diff] [blame] | 120 | * GRU configuration info (temp - for testing) |
| 121 | */ |
| 122 | struct gru_config_info { |
| 123 | int cpus; |
| 124 | int blades; |
| 125 | int nodes; |
| 126 | int chiplets; |
| 127 | int fill[16]; |
| 128 | }; |
| 129 | |
| 130 | #endif /* __GRULIB_H__ */ |