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sun4v: rtf_user now uses macros GET_MMU_CONTEXTID and SET_MMU_CONTEXTID. Tested on sun4u (QEMU) and sun4v (T2000). Parts from OpenBSD.

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This commit is contained in:
palle 2016-06-04 21:24:41 +00:00
parent 3958153370
commit 209fb3911a
1 changed files with 34 additions and 4 deletions
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38
sys/arch/sparc64/sparc64/locore.s
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@ -1,4 +1,4 @@
/* $NetBSD: locore.s,v 1.397 2016/05/18 15:14:08 nakayama Exp $ */
/* $NetBSD: locore.s,v 1.398 2016/06/04 21:24:41 palle Exp $ */
/*
* Copyright (c) 2006-2010 Matthew R. Green
@ -150,6 +150,34 @@
3:
.endm
.macro GET_MMU_CONTEXTID_SUN4U ctxid,ctx
ldxa [\ctx] ASI_DMMU, \ctxid
.endm
#ifdef SUN4V
.macro GET_MMU_CONTEXTID_SUN4V ctxid,ctx
ldxa [\ctx] ASI_MMU_CONTEXTID, \ctxid
.endm
#endif
.macro GET_MMU_CONTEXTID ctxid,ctx,scratch
#ifdef SUN4V
sethi %hi(cputyp), \scratch
ld [\scratch + %lo(cputyp)], \scratch
cmp \scratch, CPU_SUN4V
bne,pt %icc, 2f
nop
/* sun4v */
GET_MMU_CONTEXTID_SUN4V \ctxid,\ctx
ba 3f
nop
2:
#endif
/* sun4u */
GET_MMU_CONTEXTID_SUN4U \ctxid,\ctx
3:
.endm
#ifdef SUN4V
.macro NORMAL_GLOBALS_SUN4V
wrpr %g0, 0, %gl ! Set globals to level 0
@ -4619,12 +4647,14 @@ badregs:
andn %g1, CWP, %g1 ! Clear it from %tstate
wrpr %g1, %g7, %tstate ! Set %tstate with %cwp
wr %g0, ASI_DMMU, %asi ! restore the user context
ldxa [CTX_SECONDARY] %asi, %g4
mov CTX_SECONDARY, %g1 ! Restore the user context
GET_MMU_CONTEXTID %g4, %g1, %g3
mov CTX_PRIMARY, %g2
SET_MMU_CONTEXTID %g4, %g2, %g3
sethi %hi(KERNBASE), %g7 ! Should not be needed due to retry
stxa %g4, [CTX_PRIMARY] %asi
membar #Sync ! Should not be needed due to retry
flush %g7 ! Should not be needed due to retry
CLRTT
#ifdef TRAPSTATS
set _C_LABEL(rftudone), %g1