| /* |
| * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Lesser General Public License as published by |
| * the Free Software Foundation; either version 2.1 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #ifndef __GRULIB_H__ |
| #define __GRULIB_H__ |
| |
| #define GRU_BASENAME "gru" |
| #define GRU_FULLNAME "/dev/gru" |
| #define GRU_IOCTL_NUM 'G' |
| |
| /* |
| * Maximum number of GRU segments that a user can have open |
| * ZZZ temp - set high for testing. Revisit. |
| */ |
| #define GRU_MAX_OPEN_CONTEXTS 32 |
| |
| /* Set Number of Request Blocks */ |
| #define GRU_CREATE_CONTEXT _IOWR(GRU_IOCTL_NUM, 1, void *) |
| |
| /* Set Context Options */ |
| #define GRU_SET_CONTEXT_OPTION _IOWR(GRU_IOCTL_NUM, 4, void *) |
| |
| /* Fetch exception detail */ |
| #define GRU_USER_GET_EXCEPTION_DETAIL _IOWR(GRU_IOCTL_NUM, 6, void *) |
| |
| /* For user call_os handling - normally a TLB fault */ |
| #define GRU_USER_CALL_OS _IOWR(GRU_IOCTL_NUM, 8, void *) |
| |
| /* For user unload context */ |
| #define GRU_USER_UNLOAD_CONTEXT _IOWR(GRU_IOCTL_NUM, 9, void *) |
| |
| /* For dumpping GRU chiplet state */ |
| #define GRU_DUMP_CHIPLET_STATE _IOWR(GRU_IOCTL_NUM, 11, void *) |
| |
| /* For getting gseg statistics */ |
| #define GRU_GET_GSEG_STATISTICS _IOWR(GRU_IOCTL_NUM, 12, void *) |
| |
| /* For user TLB flushing (primarily for tests) */ |
| #define GRU_USER_FLUSH_TLB _IOWR(GRU_IOCTL_NUM, 50, void *) |
| |
| /* Get some config options (primarily for tests & emulator) */ |
| #define GRU_GET_CONFIG_INFO _IOWR(GRU_IOCTL_NUM, 51, void *) |
| |
| /* Various kernel self-tests */ |
| #define GRU_KTEST _IOWR(GRU_IOCTL_NUM, 52, void *) |
| |
| #define CONTEXT_WINDOW_BYTES(th) (GRU_GSEG_PAGESIZE * (th)) |
| #define THREAD_POINTER(p, th) (p + GRU_GSEG_PAGESIZE * (th)) |
| #define GSEG_START(cb) ((void *)((unsigned long)(cb) & ~(GRU_GSEG_PAGESIZE - 1))) |
| |
| /* |
| * Statictics kept on a per-GTS basis. |
| */ |
| struct gts_statistics { |
| unsigned long fmm_tlbdropin; |
| unsigned long upm_tlbdropin; |
| unsigned long context_stolen; |
| }; |
| |
| struct gru_get_gseg_statistics_req { |
| unsigned long gseg; |
| struct gts_statistics stats; |
| }; |
| |
| /* |
| * Structure used to pass TLB flush parameters to the driver |
| */ |
| struct gru_create_context_req { |
| unsigned long gseg; |
| unsigned int data_segment_bytes; |
| unsigned int control_blocks; |
| unsigned int maximum_thread_count; |
| unsigned int options; |
| unsigned char tlb_preload_count; |
| }; |
| |
| /* |
| * Structure used to pass unload context parameters to the driver |
| */ |
| struct gru_unload_context_req { |
| unsigned long gseg; |
| }; |
| |
| /* |
| * Structure used to set context options |
| */ |
| enum {sco_gseg_owner, sco_cch_req_slice, sco_blade_chiplet}; |
| struct gru_set_context_option_req { |
| unsigned long gseg; |
| int op; |
| int val0; |
| long val1; |
| }; |
| |
| /* |
| * Structure used to pass TLB flush parameters to the driver |
| */ |
| struct gru_flush_tlb_req { |
| unsigned long gseg; |
| unsigned long vaddr; |
| size_t len; |
| }; |
| |
| /* |
| * Structure used to pass TLB flush parameters to the driver |
| */ |
| enum {dcs_pid, dcs_gid}; |
| struct gru_dump_chiplet_state_req { |
| unsigned int op; |
| unsigned int gid; |
| int ctxnum; |
| char data_opt; |
| char lock_cch; |
| char flush_cbrs; |
| char fill[10]; |
| pid_t pid; |
| void *buf; |
| size_t buflen; |
| /* ---- output --- */ |
| unsigned int num_contexts; |
| }; |
| |
| #define GRU_DUMP_MAGIC 0x3474ab6c |
| struct gru_dump_context_header { |
| unsigned int magic; |
| unsigned int gid; |
| unsigned char ctxnum; |
| unsigned char cbrcnt; |
| unsigned char dsrcnt; |
| pid_t pid; |
| unsigned long vaddr; |
| int cch_locked; |
| unsigned long data[0]; |
| }; |
| |
| /* |
| * GRU configuration info (temp - for testing) |
| */ |
| struct gru_config_info { |
| int cpus; |
| int blades; |
| int nodes; |
| int chiplets; |
| int fill[16]; |
| }; |
| |
| #endif /* __GRULIB_H__ */ |