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eliminate extra branches by making better use of branch delay

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slots and annulling
This commit is contained in:
kmacy 2006-12-17 01:22:09 +00:00
parent f3bc630315
commit 789d28d577
1 changed files with 21 additions and 33 deletions
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54
sys/sun4v/sun4v/interrupt.S
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@ -404,18 +404,15 @@ ENTRY(tl_invlctx)
mov MAP_ITLB|MAP_DTLB, %o3
mov MMU_DEMAP_CTX, %o5
ta FAST_TRAP
brz,pt %o0, 1f
nop
ba interrupt_panic_bad_hcall
brnz,a,pn %o0, interrupt_panic_bad_hcall
mov MMU_DEMAP_CTX, %o1
1:
mov %g2, %o0
mov %g4, %o1
mov %g5, %o2
mov %g6, %o3
mov %g7, %o5
ba,a,pt %xcc, set_ackmask
nop
ba,pt %xcc, set_ackmask
membar #Sync
END(tl_invlctx)
ENTRY(tl_invltlb)
@ -423,24 +420,19 @@ ENTRY(tl_invltlb)
mov %o1, %g2
mov %o2, %g4
mov %o5, %g5
mov %g0, %o0
mov %g0, %o1
clr %o0
clr %o1
mov MAP_ITLB | MAP_DTLB, %o2
mov MMU_DEMAP_ALL, %o5
ta FAST_TRAP
brz,pt %o0, 1f
nop
ba interrupt_panic_bad_hcall
brnz,a,pn %o0, interrupt_panic_bad_hcall
mov MMU_DEMAP_ALL, %o1
1:
mov %g1, %o0
mov %g2, %o1
mov %g4, %o2
mov %g5, %o5
ba,a,pt %xcc, set_ackmask
nop
ba,pt %xcc, set_ackmask
membar #Sync
END(tl_invltlb)
ENTRY(tl_invlpg)
@ -449,18 +441,15 @@ ENTRY(tl_invlpg)
mov %o2, %g7
mov MAP_ITLB|MAP_DTLB, %o2
mov %g1, %o0
mov %g2, %o1
mov %g2, %o1
ta MMU_UNMAP_ADDR
brz,pt %o0, 1f
nop
ba interrupt_panic_bad_hcall
brnz,a,pn %o0, interrupt_panic_bad_hcall
mov MMU_UNMAP_ADDR, %o1
1:
mov %g5, %o0
mov %g6, %o1
mov %g7, %o2
ba,a,pt %xcc, set_ackmask
nop
ba,pt %xcc, set_ackmask
membar #Sync
END(tl_invlpg)
ENTRY(tl_tsbupdate)
@ -470,16 +459,15 @@ ENTRY(tl_tsbupdate)
cmp %g1, %g4
bne,a,pt %xcc, set_ackmask
nop
membar #Sync
/* update scratch pointer to tsbscratch */
wr %g0, ASI_REAL, %asi
ldxa [%g2]%asi, %g4 ! tsbscratch
ldxa [%g2 + 8]%asi, %g2 ! tsb_ra
mov SCRATCH_REG_TSB_USER, %g5
SET_SCRATCH(%g5, %g4)
/* reset tsb context with hypervisor */
/* reset tsb context with hypervisor */
mov %o0, %g1
mov %o1, %g2
mov %o5, %g4
@ -487,12 +475,13 @@ ENTRY(tl_tsbupdate)
mov %g2, %o1
mov MMU_TSB_CTXNON0, %o5
ta FAST_TRAP
/* XXX test %o0 */
mov %g4, %o5
mov %g2, %o1
mov %g1, %o0
ba,a,pt %xcc, set_ackmask
nop
mov %g2, %o1
mov %g4, %o5
ba,pt %xcc, set_ackmask
membar #Sync
END(tl_tsbupdate)
ENTRY(tl_ttehashupdate)
@ -501,14 +490,13 @@ ENTRY(tl_ttehashupdate)
GET_MMU_CONTEXT(%g4, %g4)
cmp %g1, %g4
bne,a,pt %xcc, set_ackmask
nop
membar #Sync
/* update scratch pointer to hashscratch */
mov SCRATCH_REG_HASH_USER, %g4
SET_SCRATCH(%g4, %g2)
END(tl_ttehashupdate)
ENTRY(set_ackmask)
membar #Sync
GET_PCPU_PHYS_SCRATCH(%g6)
wr %g0, ASI_REAL, %asi
@ -535,7 +523,7 @@ ENTRY(set_ackmask)
1: or %g1, %g4, %g2
casa [%g3]%asi, %g1, %g2
cmp %g1, %g2
bne,a,pn %icc, 1b
bne,a,pn %xcc, 1b
lda [%g3]%asi, %g1
retry
END(set_ackmask)