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Commit 1c2f61d4 authored by David S. Miller's avatar David S. Miller
Browse files

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



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

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent dc4ff585

arch/sparc/kernel/pcr.c

+6 −1
Original line number Diff line number Diff line
@@ -133,11 +133,16 @@ int __init pcr_arch_init(void) 


	case cheetah:

	case cheetah_plus:

	case spitfire:

		pcr_ops = &direct_pcr_ops;

		pcr_enable = PCR_SUN4U_ENABLE;

		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:

		err = -ENODEV;

		goto out_unregister;