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authorDavid S. Miller <davem@davemloft.net>2008-04-28 00:47:20 -0700
committerDavid S. Miller <davem@davemloft.net>2008-04-28 00:47:20 -0700
commit6eda3a75928a3dc1072dfffd228ab818869d83ad (patch)
tree56e44907f23134273fe383424c69df4d62c6544c /arch/sparc64/kernel/misctrap.S
parent194f1a68b93e959ede6ec363db4714e630bdbb6a (diff)
sparc64: Split entry.S up into seperate files.
entry.S was a hodge-podge of several totally unrelated sets of assembler routines, ranging from FPU trap handlers to hypervisor call functions. Split it up into topic-sized pieces. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/misctrap.S')
-rw-r--r--arch/sparc64/kernel/misctrap.S87
1 files changed, 87 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/misctrap.S b/arch/sparc64/kernel/misctrap.S
new file mode 100644
index 00000000000..b257497ddde
--- /dev/null
+++ b/arch/sparc64/kernel/misctrap.S
@@ -0,0 +1,87 @@
+ .type __do_privact,#function
+__do_privact:
+ mov TLB_SFSR, %g3
+ stxa %g0, [%g3] ASI_DMMU ! Clear FaultValid bit
+ membar #Sync
+ sethi %hi(109f), %g7
+ ba,pt %xcc, etrap
+109: or %g7, %lo(109b), %g7
+ call do_privact
+ add %sp, PTREGS_OFF, %o0
+ ba,pt %xcc, rtrap
+ nop
+ .size __do_privact,.-__do_privact
+
+ .type do_mna,#function
+do_mna:
+ rdpr %tl, %g3
+ cmp %g3, 1
+
+ /* Setup %g4/%g5 now as they are used in the
+ * winfixup code.
+ */
+ mov TLB_SFSR, %g3
+ mov DMMU_SFAR, %g4
+ ldxa [%g4] ASI_DMMU, %g4
+ ldxa [%g3] ASI_DMMU, %g5
+ stxa %g0, [%g3] ASI_DMMU ! Clear FaultValid bit
+ membar #Sync
+ bgu,pn %icc, winfix_mna
+ rdpr %tpc, %g3
+
+1: sethi %hi(109f), %g7
+ ba,pt %xcc, etrap
+109: or %g7, %lo(109b), %g7
+ mov %l4, %o1
+ mov %l5, %o2
+ call mem_address_unaligned
+ add %sp, PTREGS_OFF, %o0
+ ba,pt %xcc, rtrap
+ nop
+ .size do_mna,.-do_mna
+
+ .type do_lddfmna,#function
+do_lddfmna:
+ sethi %hi(109f), %g7
+ mov TLB_SFSR, %g4
+ ldxa [%g4] ASI_DMMU, %g5
+ stxa %g0, [%g4] ASI_DMMU ! Clear FaultValid bit
+ membar #Sync
+ mov DMMU_SFAR, %g4
+ ldxa [%g4] ASI_DMMU, %g4
+ ba,pt %xcc, etrap
+109: or %g7, %lo(109b), %g7
+ mov %l4, %o1
+ mov %l5, %o2
+ call handle_lddfmna
+ add %sp, PTREGS_OFF, %o0
+ ba,pt %xcc, rtrap
+ nop
+ .size do_lddfmna,.-do_lddfmna
+
+ .type do_stdfmna,#function
+do_stdfmna:
+ sethi %hi(109f), %g7
+ mov TLB_SFSR, %g4
+ ldxa [%g4] ASI_DMMU, %g5
+ stxa %g0, [%g4] ASI_DMMU ! Clear FaultValid bit
+ membar #Sync
+ mov DMMU_SFAR, %g4
+ ldxa [%g4] ASI_DMMU, %g4
+ ba,pt %xcc, etrap
+109: or %g7, %lo(109b), %g7
+ mov %l4, %o1
+ mov %l5, %o2
+ call handle_stdfmna
+ add %sp, PTREGS_OFF, %o0
+ ba,pt %xcc, rtrap
+ nop
+ .size do_stdfmna,.-do_stdfmna
+
+ .type breakpoint_trap,#function
+breakpoint_trap:
+ call sparc_breakpoint
+ add %sp, PTREGS_OFF, %o0
+ ba,pt %xcc, rtrap
+ nop
+ .size breakpoint_trap,.-breakpoint_trap