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authorLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 08:46:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 08:46:16 -0700
commit7cece14acd063dd1c4e8933461d44ec6a5a5517b (patch)
treea7d2de4acaf64eed207ceab9eb6b2a386ebd7401 /arch/sparc64/mm
parent95dfec6ae1cb8c03406aac612a5642cbddb676b3 (diff)
parent8cd0ae3acc0154f3f9dfa1b4a2b7c02c271533f6 (diff)
downloadop-kernel-dev-7cece14acd063dd1c4e8933461d44ec6a5a5517b.zip
op-kernel-dev-7cece14acd063dd1c4e8933461d44ec6a5a5517b.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: remove duplicated include sparc: Add kgdb support. kgdbts: Sparc needs sstep emulation. sparc32: Kill smp_message_pass() and related code. sparc64: Kill PIL_RESERVED, unused. sparc64: Split entry.S up into seperate files.
Diffstat (limited to 'arch/sparc64/mm')
-rw-r--r--arch/sparc64/mm/ultra.S27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S
index e686a67..796e005 100644
--- a/arch/sparc64/mm/ultra.S
+++ b/arch/sparc64/mm/ultra.S
@@ -676,6 +676,33 @@ xcall_new_mmu_context_version:
wr %g0, (1 << PIL_SMP_CTX_NEW_VERSION), %set_softint
retry
+#ifdef CONFIG_KGDB
+ .globl xcall_kgdb_capture
+xcall_kgdb_capture:
+661: rdpr %pstate, %g2
+ wrpr %g2, PSTATE_IG | PSTATE_AG, %pstate
+ .section .sun4v_2insn_patch, "ax"
+ .word 661b
+ nop
+ nop
+ .previous
+
+ rdpr %pil, %g2
+ wrpr %g0, 15, %pil
+ sethi %hi(109f), %g7
+ ba,pt %xcc, etrap_irq
+109: or %g7, %lo(109b), %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+ call trace_hardirqs_off
+ nop
+#endif
+ call smp_kgdb_capture_client
+ add %sp, PTREGS_OFF, %o0
+ /* Has to be a non-v9 branch due to the large distance. */
+ ba rtrap_xcall
+ ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
+#endif
+
#endif /* CONFIG_SMP */
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