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sparc64: Don't hook up pcr_ops on spitfire chips.

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They can't be used for profiling and NMI watchdog currently
since they lack the counter overflow interrupt.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2009-02-05 23:59:04 -08:00
parent dc4ff585ff
commit 1c2f61d40b
1 changed files with 6 additions and 1 deletions
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7
arch/sparc/kernel/pcr.c
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@@ -133,11 +133,16 @@ int __init pcr_arch_init(void)
case cheetah: case cheetah:
case cheetah_plus: case cheetah_plus:
case spitfire:
pcr_ops = &direct_pcr_ops; pcr_ops = &direct_pcr_ops;
pcr_enable = PCR_SUN4U_ENABLE; pcr_enable = PCR_SUN4U_ENABLE;
break; break;
case spitfire:
/* UltraSPARC-I/II and derivatives lack a profile
* counter overflow interrupt so we can't make use of
* their hardware currently.
*/
/* fallthrough */
default: default:
err = -ENODEV; err = -ENODEV;
goto out_unregister; goto out_unregister;