diff options
Diffstat (limited to 'arch/sparc/kernel/pcr.c')
| -rw-r--r-- | arch/sparc/kernel/pcr.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/sparc/kernel/pcr.c b/arch/sparc/kernel/pcr.c index 92e0dda141a..1ae8cdd7e70 100644 --- a/arch/sparc/kernel/pcr.c +++ b/arch/sparc/kernel/pcr.c @@ -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; |