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[SPARC64]: SUN4V memory exception trap handlers.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2006-02-09 20:20:34 -08:00
parent 618e9ed98a
commit ed6b0b4543
4 changed files with 325 additions and 24 deletions
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26
arch/sparc64/kernel/winfixup.S
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@@ -109,16 +109,23 @@ winfix_mna:
done
fill_fixup_mna:
TRAP_LOAD_THREAD_REG(%g6, %g1)
rdpr %tstate, %g1
and %g1, TSTATE_CWP, %g1
wrpr %g1, %cwp
ba,pt %xcc, etrap
rd %pc, %g7
mov %l4, %o2
mov %l5, %o1
call mem_address_unaligned
sethi %hi(tlb_type), %g1
mov %l4, %o1
lduw [%g1 + %lo(tlb_type)], %g1
mov %l5, %o2
cmp %g1, 3
bne,pt %icc, 1f
add %sp, PTREGS_OFF, %o0
call sun4v_mna
nop
ba,a,pt %xcc, rtrap_clr_l6
1: call mem_address_unaligned
nop
ba,a,pt %xcc, rtrap_clr_l6
winfix_dax:
@@ -128,14 +135,21 @@ winfix_dax:
done
fill_fixup_dax:
TRAP_LOAD_THREAD_REG(%g6, %g1)
rdpr %tstate, %g1
and %g1, TSTATE_CWP, %g1
wrpr %g1, %cwp
ba,pt %xcc, etrap
rd %pc, %g7
sethi %hi(tlb_type), %g1
mov %l4, %o1
lduw [%g1 + %lo(tlb_type)], %g1
mov %l5, %o2
call spitfire_data_access_exception
cmp %g1, 3
bne,pt %icc, 1f
add %sp, PTREGS_OFF, %o0
call sun4v_data_access_exception
nop
ba,a,pt %xcc, rtrap_clr_l6
1: call spitfire_data_access_exception
nop
ba,a,pt %xcc, rtrap_clr_l6