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Diffstat (limited to 'sim/common/cgen-scache.h')
| -rw-r--r-- | sim/common/cgen-scache.h | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/sim/common/cgen-scache.h b/sim/common/cgen-scache.h deleted file mode 100644 index b7a20de9915..00000000000 --- a/sim/common/cgen-scache.h +++ /dev/null @@ -1,162 +0,0 @@ -/* Simulator header for cgen scache support. - Copyright (C) 1998 Free Software Foundation, Inc. - Contributed by Cygnus Solutions. - -This file is part of GDB, the GNU debugger. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, 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 General Public License for more details. - -You should have received a copy of the GNU 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 CGEN_SCACHE_H -#define CGEN_SCACHE_H - -#ifndef WITH_SCACHE -#define WITH_SCACHE 0 -#endif - -/* When caching bb's, instructions are extracted into "chains". - SCACHE_MAP is a hash table into these chains. */ - -typedef struct { - IADDR pc; - SCACHE *sc; -} SCACHE_MAP; - -typedef struct cpu_scache { - /* Simulator cache size. Must be a power of 2. - This is the number of elements in the `cache' member. */ - unsigned int size; -#define CPU_SCACHE_SIZE(cpu) ((cpu) -> cgen_cpu.scache.size) - /* The cache. */ - SCACHE *cache; -#define CPU_SCACHE_CACHE(cpu) ((cpu) -> cgen_cpu.scache.cache) - -#if WITH_SCACHE_PBB - /* Number of hash chains. Must be a power of 2. */ - unsigned int num_hash_chains; -#define CPU_SCACHE_NUM_HASH_CHAINS(cpu) ((cpu) -> cgen_cpu.scache.num_hash_chains) - /* Number of entries in each hash chain. - The hash table is a statically allocated NxM array where - N = num_hash_chains - M = num_hash_chain_entries. */ - unsigned int num_hash_chain_entries; -#define CPU_SCACHE_NUM_HASH_CHAIN_ENTRIES(cpu) ((cpu) -> cgen_cpu.scache.num_hash_chain_entries) - /* Maximum number of instructions in a chain. - ??? This just let's us set a static size of chain_lengths table. - In a simulation that handles more than just the cpu, this might also be - used to keep too many instructions from being executed before checking - for events (or some such). */ - unsigned int max_chain_length; -#define CPU_SCACHE_MAX_CHAIN_LENGTH(cpu) ((cpu) -> cgen_cpu.scache.max_chain_length) - /* Special scache entry for (re)starting bb extraction. */ - SCACHE *pbb_begin; -#define CPU_SCACHE_PBB_BEGIN(cpu) ((cpu) -> cgen_cpu.scache.pbb_begin) - /* Hash table into cached chains. */ - SCACHE_MAP *hash_table; -#define CPU_SCACHE_HASH_TABLE(cpu) ((cpu) -> cgen_cpu.scache.hash_table) - /* Next free entry in cache. */ - SCACHE *next_free; -#define CPU_SCACHE_NEXT_FREE(cpu) ((cpu) -> cgen_cpu.scache.next_free) - - /* Kind of branch being taken. - Only used by functional semantics, not switch form. */ - SEM_BRANCH_TYPE pbb_br_type; -#define CPU_PBB_BR_TYPE(cpu) ((cpu) -> cgen_cpu.scache.pbb_br_type) - /* Target's branch address. */ - IADDR pbb_br_npc; -#define CPU_PBB_BR_NPC(cpu) ((cpu) -> cgen_cpu.scache.pbb_br_npc) -#endif /* WITH_SCACHE_PBB */ - -#if WITH_PROFILE_SCACHE_P - /* Cache hits, misses. */ - unsigned long hits, misses; -#define CPU_SCACHE_HITS(cpu) ((cpu) -> cgen_cpu.scache.hits) -#define CPU_SCACHE_MISSES(cpu) ((cpu) -> cgen_cpu.scache.misses) - -#if WITH_SCACHE_PBB - /* Chain length counts. - Each element is a count of the number of chains created with that - length. */ - unsigned long *chain_lengths; -#define CPU_SCACHE_CHAIN_LENGTHS(cpu) ((cpu) -> cgen_cpu.scache.chain_lengths) - /* Number of times cache was flushed due to its being full. */ - unsigned long full_flushes; -#define CPU_SCACHE_FULL_FLUSHES(cpu) ((cpu) -> cgen_cpu.scache.full_flushes) -#endif -#endif -} CPU_SCACHE; - -/* Hash a PC value. - This is split into two parts to help with moving as much of the - computation out of the main loop. */ -#define CPU_SCACHE_HASH_MASK(cpu) (CPU_SCACHE_SIZE (cpu) - 1) -#define SCACHE_HASH_PC(pc, mask) \ -((CGEN_MIN_INSN_SIZE == 2 ? ((pc) >> 1) \ - : CGEN_MIN_INSN_SIZE == 4 ? ((pc) >> 2) \ - : (pc)) \ - & (mask)) - -/* Non-zero if cache is in use. */ -#define USING_SCACHE_P(sd) (STATE_SCACHE_SIZE (sd) > 0) - -/* Install the simulator cache into the simulator. */ -MODULE_INSTALL_FN scache_install; - -/* Lookup a PC value in the scache [compilation only]. */ -extern SCACHE * scache_lookup (SIM_CPU *, IADDR); -/* Return a pointer to at least N buffers. */ -extern SCACHE *scache_lookup_or_alloc (SIM_CPU *, IADDR, int, SCACHE **); -/* Flush all cpu's scaches. */ -extern void scache_flush (SIM_DESC); -/* Flush a cpu's scache. */ -extern void scache_flush_cpu (SIM_CPU *); - -/* Scache profiling support. */ - -/* Print summary scache usage information. */ -extern void scache_print_profile (SIM_CPU *cpu, int verbose); - -#if WITH_PROFILE_SCACHE_P - -#define PROFILE_COUNT_SCACHE_HIT(cpu) \ -do { \ - if (CPU_PROFILE_FLAGS (cpu) [PROFILE_SCACHE_IDX]) \ - ++ CPU_SCACHE_HITS (cpu); \ -} while (0) -#define PROFILE_COUNT_SCACHE_MISS(cpu) \ -do { \ - if (CPU_PROFILE_FLAGS (cpu) [PROFILE_SCACHE_IDX]) \ - ++ CPU_SCACHE_MISSES (cpu); \ -} while (0) -#define PROFILE_COUNT_SCACHE_CHAIN_LENGTH(cpu,length) \ -do { \ - if (CPU_PROFILE_FLAGS (cpu) [PROFILE_SCACHE_IDX]) \ - ++ CPU_SCACHE_CHAIN_LENGTHS (cpu) [length]; \ -} while (0) -#define PROFILE_COUNT_SCACHE_FULL_FLUSH(cpu) \ -do { \ - if (CPU_PROFILE_FLAGS (cpu) [PROFILE_SCACHE_IDX]) \ - ++ CPU_SCACHE_FULL_FLUSHES (cpu); \ -} while (0) - -#else - -#define PROFILE_COUNT_SCACHE_HIT(cpu) -#define PROFILE_COUNT_SCACHE_MISS(cpu) -#define PROFILE_COUNT_SCACHE_CHAIN_LENGTH(cpu,length) -#define PROFILE_COUNT_SCACHE_FULL_FLUSH(cpu) - -#endif - -#endif /* CGEN_SCACHE_H */ |