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Define COHERENCY_UNIT and CACHE_LINE_SIZE as 64, which is the primary cache 

line size on EV6 / EV7.  This is also the default MI fallback definition,
but now we're not relying on that value.
This commit is contained in:
thorpej 2020-09-03 22:56:11 +00:00
parent a2fc9de97d
commit 5f3d40cbf2
1 changed files with 8 additions and 1 deletions
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9
sys/arch/alpha/include/param.h
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@ -1,4 +1,4 @@
/* $NetBSD: param.h,v 1.45 2019/01/07 22:00:30 jdolecek Exp $ */
/* $NetBSD: param.h,v 1.46 2020/09/03 22:56:11 thorpej Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -70,6 +70,13 @@
#define MSGBUFSIZE NBPG /* default message buffer size */
#endif
/*
* EV4 (21064) and EV5 (21164) have a 32-byte cache line size.
* EV6 (21264) and EV7 (21364) have a 64-byte cache line size.
*/
#define COHERENCY_UNIT 64
#define CACHE_LINE_SIZE 64
/*
* Constants related to network buffer management.
* MCLBYTES must be no larger than NBPG (the software page size), and,