[SPARC64]: Fix tl1 trap state capture/dump on SUN4V.

[linux-2.6-omap-h63xx.git] / arch / sparc64 / kernel / etrap.S

diff --git a/arch/sparc64/kernel/etrap.S b/arch/sparc64/kernel/etrap.S
index a0e7d480e5dca06e9f04bbec42d1244f9386dde6..149383835c25381ff082fa47e98fb5d013d23964 100644 (file)
--- a/arch/sparc64/kernel/etrap.S
+++ b/arch/sparc64/kernel/etrap.S
@@ -188,6 +188,11 @@ etraptl1:  /* Save tstate/tpc/tnpc of TL 1-->4 and the tl register itself.
                rdpr    %tt, %g3
                stx     %g3, [%g2 + STACK_BIAS + 0x38]
 
+               sethi   %hi(is_sun4v), %g3
+               lduw    [%g3 + %lo(is_sun4v)], %g3
+               brnz,pn %g3, finish_tl1_capture
+                nop
+
                wrpr    %g0, 3, %tl
                rdpr    %tstate, %g3
                stx     %g3, [%g2 + STACK_BIAS + 0x40]
@@ -210,6 +215,7 @@ etraptl1:   /* Save tstate/tpc/tnpc of TL 1-->4 and the tl register itself.
 
                stx     %g1, [%g2 + STACK_BIAS + 0x80]
 
+finish_tl1_capture:
                wrpr    %g0, 1, %tl
 661:           nop
                .section .sun4v_1insn_patch, "ax"