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authorMark Kettenis <kettenis@cvs.openbsd.org>2007-12-05 19:43:16 +0000
committerMark Kettenis <kettenis@cvs.openbsd.org>2007-12-05 19:43:16 +0000
commita374f9ba5aff303cdffe704c3052aecbd02d0d00 (patch)
treeb7a1b4f551f28d14cd4f005ab27169711a3a2dd1 /sys
parent889140cc7443199609393b489e13d395e9e062a1 (diff)
Remove some 32-bit compatibility code in pseg_get().
Completely remove pseg_find() since it isn't used.
Diffstat (limited to 'sys')
-rw-r--r--sys/arch/sparc64/sparc64/locore.s107
-rw-r--r--sys/arch/sparc64/sparc64/pmap.c25
2 files changed, 3 insertions, 129 deletions
diff --git a/sys/arch/sparc64/sparc64/locore.s b/sys/arch/sparc64/sparc64/locore.s
index ad469396c45..56e7a901317 100644
--- a/sys/arch/sparc64/sparc64/locore.s
+++ b/sys/arch/sparc64/sparc64/locore.s
@@ -1,4 +1,4 @@
-/* $OpenBSD: locore.s,v 1.104 2007/11/11 19:47:34 kettenis Exp $ */
+/* $OpenBSD: locore.s,v 1.105 2007/12/05 19:43:15 kettenis Exp $ */
/* $NetBSD: locore.s,v 1.137 2001/08/13 06:10:10 jdolecek Exp $ */
/*
@@ -5993,7 +5993,6 @@ ENTRY(pmap_copy_phys)
*
*/
ENTRY(pseg_get)
-! flushw ! Make sure we don't have stack probs & lose hibits of %o
ldx [%o0 + PM_PHYS], %o2 ! pmap->pm_segs
srax %o1, HOLESHIFT, %o3 ! Check for valid address
@@ -6027,25 +6026,10 @@ ENTRY(pseg_get)
ldxa [%o2] ASI_PHYS_CACHED, %o0
DLFLUSH2 %o3
brgez,pn %o0, 1f ! Entry invalid? Punt
- btst 1, %sp
- bz,pn %icc, 0f ! 64-bit mode?
- nop
- retl ! Yes, return full value
nop
-0:
-#if 1
- srl %o0, 0, %o1
- retl ! No, generate a %o0:%o1 double
- srlx %o0, 32, %o0
-#else /* 1 */
- DLFLUSH %o2,%o3
- ldda [%o2] ASI_PHYS_CACHED, %o0
- DLFLUSH2 %o3
- retl ! No, generate a %o0:%o1 double
+ retl
nop
-#endif /* 1 */
1:
- clr %o1
retl
clr %o0
@@ -6135,93 +6119,6 @@ ENTRY(pseg_set)
retl
mov 1, %o0
-/*
- * extern void pseg_find(struct pmap* %o0, vaddr_t addr %o1, paddr_t spare %o2);
- *
- * Get the paddr for a particular TTE entry. Returns the TTE's PA on success,
- * 1 if it needs to fill a pseg, and -1 if the address is in the virtual hole.
- * (NB: nobody in pmap checks for the virtual hole, so the system will hang.)
- * Allocate a page, pass the phys addr in as the spare, and try again.
- * If spare is not NULL it is assumed to be the address of a zeroed physical
- * page that can be used to generate a directory table or page table if needed.
- *
- */
-ENTRY(pseg_find)
- !!
- !! However we managed to get here we now have:
- !!
- !! %o0 = *pmap
- !! %o1 = addr
- !! %o2 = spare
- !!
- srax %o1, HOLESHIFT, %o4 ! Check for valid address
- brz,pt %o4, 0f ! Should be zero or -1
- inc %o4 ! Make -1 -> 0
- brz,pt %o4, 0f
- nop
-#ifdef DEBUG
- ta 1 ! Break into debugger
-#endif /* DEBUG */
- mov -1, %o0 ! Error -- in hole!
- retl
- mov -1, %o1
-0:
- ldx [%o0 + PM_PHYS], %o4 ! pmap->pm_segs
- srlx %o1, STSHIFT, %o5
- and %o5, STMASK, %o5
- sll %o5, 3, %o5
- add %o4, %o5, %o4
-2:
- DLFLUSH %o4,%o3
- ldxa [%o4] ASI_PHYS_CACHED, %o5 ! Load page directory pointer
- DLFLUSH2 %o3
-
- brnz,a,pt %o5, 0f ! Null pointer?
- mov %o5, %o4
- brz,pn %o2, 1f ! Have a spare?
- mov %o2, %o5
- casxa [%o4] ASI_PHYS_CACHED, %g0, %o5
- brnz,pn %o5, 2b ! Something changed?
- DLFLUSH %o4, %o5
- mov %o2, %o4
- clr %o2 ! Mark spare as used
-0:
- srlx %o1, PDSHIFT, %o5
- and %o5, PDMASK, %o5
- sll %o5, 3, %o5
- add %o4, %o5, %o4
-2:
- DLFLUSH %o4,%o3
- ldxa [%o4] ASI_PHYS_CACHED, %o5 ! Load table directory pointer
- DLFLUSH2 %o3
-
- brnz,a,pt %o5, 0f ! Null pointer?
- mov %o5, %o4
- brz,pn %o2, 1f ! Have a spare?
- mov %o2, %o5
- casxa [%o4] ASI_PHYS_CACHED, %g0, %o5
- brnz,pn %o5, 2b ! Something changed?
- DLFLUSH %o4, %o4
- mov %o2, %o4
- clr %o2 ! Mark spare as used
-0:
- srlx %o1, PTSHIFT, %o5 ! Convert to ptab offset
- btst 1, %sp
- and %o5, PTMASK, %o5
- sll %o5, 3, %o5
- bz,pn %icc, 0f ! 64-bit mode?
- add %o5, %o4, %o0
- retl
- clr %o0
-0:
- srl %o0, 0, %o1
- retl ! No, generate a %o0:%o1 double
- srlx %o0, 32, %o0
-
-1:
- retl
- mov 1, %o0
-
/*
* Use block_disable to turn off block instructions for
diff --git a/sys/arch/sparc64/sparc64/pmap.c b/sys/arch/sparc64/sparc64/pmap.c
index d1e8dad3614..0986433d932 100644
--- a/sys/arch/sparc64/sparc64/pmap.c
+++ b/sys/arch/sparc64/sparc64/pmap.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: pmap.c,v 1.47 2007/11/28 19:37:23 kettenis Exp $ */
+/* $OpenBSD: pmap.c,v 1.48 2007/12/05 19:43:15 kettenis Exp $ */
/* $NetBSD: pmap.c,v 1.107 2001/08/31 16:47:41 eeh Exp $ */
#undef NO_VCACHE /* Don't forget the locked TLB in dostart */
/*
@@ -109,11 +109,9 @@ pseg_check(struct pmap *pm, vaddr_t addr, int64_t tte, paddr_t spare)
#if 1
extern int64_t pseg_get(struct pmap*, vaddr_t addr);
extern int pseg_set(struct pmap*, vaddr_t addr, int64_t tte, paddr_t spare);
-extern paddr_t pseg_find(struct pmap*, vaddr_t addr, paddr_t spare);
#else
static int64_t pseg_get(struct pmap*, vaddr_t addr);
static int pseg_set(struct pmap*, vaddr_t addr, int64_t tte, paddr_t spare);
-static paddr_t pseg_find(struct pmap*, vaddr_t addr, paddr_t spare);
static int64_t pseg_get(struct pmap* pm, vaddr_t addr) {
paddr_t *pdir, *ptbl;
@@ -146,27 +144,6 @@ static int pseg_set(struct pmap* pm, vaddr_t addr, int64_t tte, paddr_t spare) {
return (0);
}
-static paddr_t pseg_find(struct pmap* pm, vaddr_t addr, paddr_t spare) {
- int i, j, k, s;
- paddr_t *pdir, *ptbl;
-
- if (!(pdir = (paddr_t *)ldda(&pm->pm_segs[va_to_seg(addr)],
- ASI_PHYS_CACHED))) {
- if (!spare) return (1);
- stxa_sync(&pm->pm_segs[va_to_seg(addr)], ASI_PHYS_CACHED, spare);
- pdir = spare;
- spare = NULL;
- }
- if (!(ptbl = (paddr_t *)ldda(&pdir[va_to_dir(addr)], ASI_PHYS_CACHED))) {
- if (!spare) return (1);
- stxa_sync(&pdir[va_to_dir(addr)], ASI_PHYS_CACHED, spare);
- ptbl = spare;
- spare = NULL;
- }
- return (paddr_t)(&ptbl[va_to_pte(addr)]);
-}
-
-
#endif
/* XXX - temporary workaround for pmap_{copy,zero}_page api change */