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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-16 01:41:41 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:13:12 -0800 |
| commit | 3d6395cb770b0db9135a853b1742418c99ed2148 (patch) | |
| tree | 609b1d8f6d3ff13a312c8eb0ce4f070b644b6e05 /arch | |
| parent | 135066a21129760e44a51a7ef31d8c861f8ddace (diff) | |
| download | linux-3d6395cb770b0db9135a853b1742418c99ed2148.tar.bz2 | |
[SPARC64]: Fix tl1 trap state capture/dump on SUN4V.
No trap levels above 2 in privileged mode on SUN4V.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc64/kernel/etrap.S | 6 | ||||
| -rw-r--r-- | arch/sparc64/kernel/traps.c | 4 |
2 files changed, 9 insertions, 1 deletions
diff --git a/arch/sparc64/kernel/etrap.S b/arch/sparc64/kernel/etrap.S index a0e7d480e5dc..149383835c25 100644 --- 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" diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index bedb2f693c76..5956d0a94009 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -73,10 +73,12 @@ struct tl1_traplog { static void dump_tl1_traplog(struct tl1_traplog *p) { - int i; + int i, limit; printk("TRAPLOG: Error at trap level 0x%lx, dumping track stack.\n", p->tl); + + limit = (tlb_type == hypervisor) ? 2 : 4; for (i = 0; i < 4; i++) { printk(KERN_CRIT "TRAPLOG: Trap level %d TSTATE[%016lx] TPC[%016lx] " |