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-rw-r--r--arch/sparc64/kernel/entry.S16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index 6d0476f..214cd0e 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -701,8 +701,24 @@ __do_data_access_exception_tl1:
ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR
stxa %g0, [%g3] ASI_DMMU ! Clear SFSR.FaultValid bit
membar #Sync
+ rdpr %tt, %g3
+ cmp %g3, 0x80 ! first win spill/fill trap
+ blu,pn %xcc, 1f
+ cmp %g3, 0xff ! last win spill/fill trap
+ bgu,pn %xcc, 1f
+ nop
ba,pt %xcc, winfix_dax
rdpr %tpc, %g3
+1: sethi %hi(109f), %g7
+ ba,pt %xcc, etraptl1
+109: or %g7, %lo(109b), %g7
+ mov %l4, %o1
+ mov %l5, %o2
+ call data_access_exception_tl1
+ add %sp, PTREGS_OFF, %o0
+ ba,pt %xcc, rtrap
+ clr %l6
+
__do_data_access_exception:
rdpr %pstate, %g4
wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate