113d19498SJack Steiner /* 213d19498SJack Steiner * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. 313d19498SJack Steiner * 413d19498SJack Steiner * This program is free software; you can redistribute it and/or modify 513d19498SJack Steiner * it under the terms of the GNU Lesser General Public License as published by 613d19498SJack Steiner * the Free Software Foundation; either version 2.1 of the License, or 713d19498SJack Steiner * (at your option) any later version. 813d19498SJack Steiner * 913d19498SJack Steiner * This program is distributed in the hope that it will be useful, 1013d19498SJack Steiner * but WITHOUT ANY WARRANTY; without even the implied warranty of 1113d19498SJack Steiner * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1213d19498SJack Steiner * GNU Lesser General Public License for more details. 1313d19498SJack Steiner * 1413d19498SJack Steiner * You should have received a copy of the GNU Lesser General Public License 1513d19498SJack Steiner * along with this program; if not, write to the Free Software 1613d19498SJack Steiner * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 1713d19498SJack Steiner */ 1813d19498SJack Steiner 1913d19498SJack Steiner #ifndef __GRU_H__ 2013d19498SJack Steiner #define __GRU_H__ 2113d19498SJack Steiner 2213d19498SJack Steiner /* 2313d19498SJack Steiner * GRU architectural definitions 2413d19498SJack Steiner */ 2513d19498SJack Steiner #define GRU_CACHE_LINE_BYTES 64 2613d19498SJack Steiner #define GRU_HANDLE_STRIDE 256 2713d19498SJack Steiner #define GRU_CB_BASE 0 2813d19498SJack Steiner #define GRU_DS_BASE 0x20000 2913d19498SJack Steiner 3013d19498SJack Steiner /* 3113d19498SJack Steiner * Size used to map GRU GSeg 3213d19498SJack Steiner */ 33923f7f69SJack Steiner #if defined(CONFIG_IA64) 3413d19498SJack Steiner #define GRU_GSEG_PAGESIZE (256 * 1024UL) 35923f7f69SJack Steiner #elif defined(CONFIG_X86_64) 3613d19498SJack Steiner #define GRU_GSEG_PAGESIZE (256 * 1024UL) /* ZZZ 2MB ??? */ 3713d19498SJack Steiner #else 3813d19498SJack Steiner #error "Unsupported architecture" 3913d19498SJack Steiner #endif 4013d19498SJack Steiner 4113d19498SJack Steiner /* 4213d19498SJack Steiner * Structure for obtaining GRU resource information 4313d19498SJack Steiner */ 4413d19498SJack Steiner struct gru_chiplet_info { 4513d19498SJack Steiner int node; 4613d19498SJack Steiner int chiplet; 4713d19498SJack Steiner int blade; 4813d19498SJack Steiner int total_dsr_bytes; 4913d19498SJack Steiner int total_cbr; 5013d19498SJack Steiner int total_user_dsr_bytes; 5113d19498SJack Steiner int total_user_cbr; 5213d19498SJack Steiner int free_user_dsr_bytes; 5313d19498SJack Steiner int free_user_cbr; 5413d19498SJack Steiner }; 5513d19498SJack Steiner 56*5958ab88SJack Steiner /* 57*5958ab88SJack Steiner * Statictics kept for each context. 58*5958ab88SJack Steiner */ 59*5958ab88SJack Steiner struct gru_gseg_statistics { 60*5958ab88SJack Steiner unsigned long fmm_tlbmiss; 61*5958ab88SJack Steiner unsigned long upm_tlbmiss; 62*5958ab88SJack Steiner unsigned long tlbdropin; 63*5958ab88SJack Steiner unsigned long context_stolen; 64*5958ab88SJack Steiner unsigned long reserved[10]; 65*5958ab88SJack Steiner }; 66*5958ab88SJack Steiner 6713d19498SJack Steiner /* Flags for GRU options on the gru_create_context() call */ 6813d19498SJack Steiner /* Select one of the follow 4 options to specify how TLB misses are handled */ 6913d19498SJack Steiner #define GRU_OPT_MISS_DEFAULT 0x0000 /* Use default mode */ 7013d19498SJack Steiner #define GRU_OPT_MISS_USER_POLL 0x0001 /* User will poll CB for faults */ 7113d19498SJack Steiner #define GRU_OPT_MISS_FMM_INTR 0x0002 /* Send interrupt to cpu to 7213d19498SJack Steiner handle fault */ 7313d19498SJack Steiner #define GRU_OPT_MISS_FMM_POLL 0x0003 /* Use system polling thread */ 7413d19498SJack Steiner #define GRU_OPT_MISS_MASK 0x0003 /* Mask for TLB MISS option */ 7513d19498SJack Steiner 7613d19498SJack Steiner 7713d19498SJack Steiner 7813d19498SJack Steiner #endif /* __GRU_H__ */ 79