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mase-mem.h
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mase-mem.h
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/* mase-mem.h - sim-mase memory functions */
/* MASE was created by Eric Larson, Saugata Chatterjee, Dan Ernst, and
* Todd M. Austin at the University of Michigan.
*/
/* SimpleScalar(TM) Tool Suite
* Copyright (C) 1994-2001 by Todd M. Austin, Ph.D. and SimpleScalar, LLC.
* All Rights Reserved.
*
* THIS IS A LEGAL DOCUMENT, BY USING SIMPLESCALAR,
* YOU ARE AGREEING TO THESE TERMS AND CONDITIONS.
*
* No portion of this work may be used by any commercial entity, or for any
* commercial purpose, without the prior, written permission of SimpleScalar,
* LLC (info@simplescalar.com). Nonprofit and noncommercial use is permitted
* as described below.
*
* 1. SimpleScalar is provided AS IS, with no warranty of any kind, express
* or implied. The user of the program accepts full responsibility for the
* application of the program and the use of any results.
*
* 2. Nonprofit and noncommercial use is encouraged. SimpleScalar may be
* downloaded, compiled, executed, copied, and modified solely for nonprofit,
* educational, noncommercial research, and noncommercial scholarship
* purposes provided that this notice in its entirety accompanies all copies.
* Copies of the modified software can be delivered to persons who use it
* solely for nonprofit, educational, noncommercial research, and
* noncommercial scholarship purposes provided that this notice in its
* entirety accompanies all copies.
*
* 3. ALL COMMERCIAL USE, AND ALL USE BY FOR PROFIT ENTITIES, IS EXPRESSLY
* PROHIBITED WITHOUT A LICENSE FROM SIMPLESCALAR, LLC (info@simplescalar.com).
*
* 4. No nonprofit user may place any restrictions on the use of this software,
* including as modified by the user, by any other authorized user.
*
* 5. Noncommercial and nonprofit users may distribute copies of SimpleScalar
* in compiled or executable form as set forth in Section 2, provided that
* either: (A) it is accompanied by the corresponding machine-readable source
* code, or (B) it is accompanied by a written offer, with no time limit, to
* give anyone a machine-readable copy of the corresponding source code in
* return for reimbursement of the cost of distribution. This written offer
* must permit verbatim duplication by anyone, or (C) it is distributed by
* someone who received only the executable form, and is accompanied by a
* copy of the written offer of source code.
*
* 6. SimpleScalar was developed by Todd M. Austin, Ph.D. The tool suite is
* currently maintained by SimpleScalar LLC (info@simplescalar.com). US Mail:
* 2395 Timbercrest Court, Ann Arbor, MI 48105.
*
* Copyright (C) 2000-2001 by The Regents of The University of Michigan.
* Copyright (C) 1994-2001 by Todd M. Austin, Ph.D. and SimpleScalar, LLC.
*/
/* memory status */
enum mem_status {
MEM_RETRY, /* The memory request is denied, try again later */
MEM_KNOWN, /* Latency is known, returned in lat */
MEM_UNKNOWN /* Latency is not known, callback function is called
* when it becomes known. */
};
/* level 1 instruction cache, entry level instruction cache */
extern struct cache_t *cache_il1;
/* level 1 instruction cache */
extern struct cache_t *cache_il2;
/* level 1 data cache, entry level data cache */
extern struct cache_t *cache_dl1;
/* level 2 data cache */
extern struct cache_t *cache_dl2;
/* instruction TLB */
extern struct cache_t *itlb;
/* data TLB */
extern struct cache_t *dtlb;
#ifdef TEST_CB
void cb_tester();
#endif
/* mase cache access function */
enum mem_status
mase_cache_access(
struct cache_t *cp, /* cache to access */
enum mem_cmd cmd, /* access type, Read or Write */
md_addr_t addr, /* address of access */
void *vp, /* ptr to buffer for input/output */
int nbytes, /* number of bytes to access */
tick_t now, /* time of access */
byte_t **udata, /* for return of user data ptr */
md_addr_t *repl_addr, /* for address of replaced block */
void (*callback_fn) /* function to call when latency is known */
(unsigned int rid, unsigned int lat),
unsigned int rid, /* request id */
unsigned int *lat); /* latency of access in cycles (return value) */
/* memory access latency, assumed to not cross a page boundary */
unsigned int /* total latency of access */
mem_access_latency(int blk_sz); /* block size accessed */
/* cache miss handlers */
/* l1 data cache l1 block miss handler function */
unsigned int /* latency of block access */
dl1_access_fn(enum mem_cmd cmd, /* access cmd, Read or Write */
md_addr_t baddr, /* block address to access */
int bsize, /* size of block to access */
struct cache_blk_t *blk, /* ptr to block in upper level */
tick_t now); /* time of access */
/* l2 data cache block miss handler function */
unsigned int /* latency of block access */
dl2_access_fn(enum mem_cmd cmd, /* access cmd, Read or Write */
md_addr_t baddr, /* block address to access */
int bsize, /* size of block to access */
struct cache_blk_t *blk, /* ptr to block in upper level */
tick_t now); /* time of access */
/* l1 inst cache l1 block miss handler function */
unsigned int /* latency of block access */
il1_access_fn(enum mem_cmd cmd, /* access cmd, Read or Write */
md_addr_t baddr, /* block address to access */
int bsize, /* size of block to access */
struct cache_blk_t *blk, /* ptr to block in upper level */
tick_t now); /* time of access */
/* l2 inst cache block miss handler function */
unsigned int /* latency of block access */
il2_access_fn(enum mem_cmd cmd, /* access cmd, Read or Write */
md_addr_t baddr, /* block address to access */
int bsize, /* size of block to access */
struct cache_blk_t *blk, /* ptr to block in upper level */
tick_t now); /* time of access */
/* TLB miss handlers */
/* inst cache block miss handler function */
unsigned int /* latency of block access */
itlb_access_fn(enum mem_cmd cmd, /* access cmd, Read or Write */
md_addr_t baddr, /* block address to access */
int bsize, /* size of block to access */
struct cache_blk_t *blk, /* ptr to block in upper level */
tick_t now); /* time of access */
/* data cache block miss handler function */
unsigned int /* latency of block access */
dtlb_access_fn(enum mem_cmd cmd, /* access cmd, Read or Write */
md_addr_t baddr, /* block address to access */
int bsize, /* size of block to access */
struct cache_blk_t *blk, /* ptr to block in upper level */
tick_t now); /* time of access */