| /* |
| * 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_IA64) |
| #define GRU_GSEG_PAGESIZE (256 * 1024UL) |
| #elif 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__ */ |