/* * 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 __GRU_H__ #define __GRU_H__ /* * GRU architectural definitions */ #define GRU_CACHE_LINE_BYTES 64 #define GRU_HANDLE_STRIDE 256 #define GRU_CB_BASE 0 #define GRU_DS_BASE 0x20000 /* * Size used to map GRU GSeg */ #if defined([31mCONFIG_IA64[0m) #define GRU_GSEG_PAGESIZE (256 * 1024UL) #elif defined([31mCONFIG_X86_64[0m) #define GRU_GSEG_PAGESIZE (256 * 1024UL) /* ZZZ 2MB ??? */ #else #error "Unsupported architecture" #endif /* * Structure for obtaining GRU resource information */ struct gru_chiplet_info { int node; int chiplet; int blade; int total_dsr_bytes; int total_cbr; int total_user_dsr_bytes; int total_user_cbr; int free_user_dsr_bytes; int free_user_cbr; }; /* * Statictics kept for each context. */ struct gru_gseg_statistics { unsigned long fmm_tlbmiss; unsigned long upm_tlbmiss; unsigned long tlbdropin; unsigned long context_stolen; unsigned long reserved[10]; }; /* Flags for GRU options on the gru_create_context() call */ /* Select one of the follow 4 options to specify how TLB misses are handled */ #define GRU_OPT_MISS_DEFAULT 0x0000 /* Use default mode */ #define GRU_OPT_MISS_USER_POLL 0x0001 /* User will poll CB for faults */ #define GRU_OPT_MISS_FMM_INTR 0x0002 /* Send interrupt to cpu to handle fault */ #define GRU_OPT_MISS_FMM_POLL 0x0003 /* Use system polling thread */ #define GRU_OPT_MISS_MASK 0x0003 /* Mask for TLB MISS option */ #endif /* __GRU_H__ */ |