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Use TSO memory model for 32-bit userland.

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This commit is contained in:
eeh 2000-07-09 22:02:32 +00:00
parent e5cd515b89
commit ec71379542
1 changed files with 16 additions and 6 deletions
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22
sys/arch/sparc64/include/psl.h
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@ -1,4 +1,4 @@
/* $NetBSD: psl.h,v 1.11 1999/08/05 18:28:01 thorpej Exp $ */
/* $NetBSD: psl.h,v 1.12 2000/07/09 22:02:32 eeh Exp $ */
/*
* Copyright (c) 1992, 1993
@ -136,20 +136,31 @@
#define PSTATE_BITS "\20\14IG\13MG\12CLE\11TLE\10\7MM\6RED\5PEF\4AM\3PRIV\2IE\1AG"
/*
* 32-bit code requires TSO or at best PSO since that's what's supported on
* SPARC V8 and earlier machines.
*
* 64-bit code sets the memory model in the ELF header.
*
* We're running kernel code in TSO for the moment so we don't need to worry
* about possible memory barrier bugs.
*/
#ifdef __arch64__
#define PSTATE_PROM (PSTATE_MM_TSO|PSTATE_PRIV)
#define PSTATE_NUCLEUS (PSTATE_MM_TSO|PSTATE_PRIV|PSTATE_AG)
#define PSTATE_KERN (PSTATE_MM_TSO|PSTATE_PRIV)
#define PSTATE_INTR (PSTATE_KERN|PSTATE_IE)
#define PSTATE_USER32 (PSTATE_MM_TSO|PSTATE_AM|PSTATE_IE) /* It's easier to debug */
#define PSTATE_USER32 (PSTATE_MM_TSO|PSTATE_AM|PSTATE_IE)
#define PSTATE_USER (PSTATE_MM_RMO|PSTATE_AM|PSTATE_IE)
#else
#define PSTATE_PROM (PSTATE_MM_TSO|PSTATE_PRIV)
#define PSTATE_NUCLEUS (PSTATE_MM_TSO|PSTATE_AM|PSTATE_PRIV|PSTATE_AG)
#define PSTATE_KERN (PSTATE_MM_TSO|PSTATE_AM|PSTATE_PRIV)
#define PSTATE_INTR (PSTATE_KERN|PSTATE_IE)
#define PSTATE_USER32 (PSTATE_MM_TSO|PSTATE_AM|PSTATE_IE) /* It's easier to debug */
#define PSTATE_USER (PSTATE_MM_RMO|PSTATE_AM|PSTATE_IE)
#define PSTATE_USER32 (PSTATE_MM_TSO|PSTATE_AM|PSTATE_IE)
#define PSTATE_USER (PSTATE_MM_TSO|PSTATE_AM|PSTATE_IE)
#endif
/*
@ -159,8 +170,7 @@
* +-----+-----+-----+--------+---+-----+
* | CCR | ASI | - | PSTATE | - | CWP |
* +-----+-----+-----+--------+---+-----+
*
*/
* */
#define TSTATE_CWP 0x01f
#define TSTATE_PSTATE 0x6ff00