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- /*
- * 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(CONFIG_X86_64)
- #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__ */
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