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authorAnton Blanchard <anton@samba.org>2005-07-07 17:56:36 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-07 18:23:42 -0700
commit059e277e5ba6486b5ef66deb336d4ef887f163ac (patch)
tree4d264678851822636a9299cab0b9bc8d3893927d
parentb6bff397ea9c36d410212f785ee644103146102a (diff)
downloadop-kernel-dev-059e277e5ba6486b5ef66deb336d4ef887f163ac.zip
op-kernel-dev-059e277e5ba6486b5ef66deb336d4ef887f163ac.tar.gz
[PATCH] ppc64: silence perfmon exception warnings
We dont need to use the PERFMON exception on POWER5, in fact the firmware returns an error. Due to this just remove the warning. Also now that we have proper runlatch support we can remove the bootup hack. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/ppc64/kernel/sysfs.c14
1 files changed, 1 insertions, 13 deletions
diff --git a/arch/ppc64/kernel/sysfs.c b/arch/ppc64/kernel/sysfs.c
index 2f704a2..02b8ac4 100644
--- a/arch/ppc64/kernel/sysfs.c
+++ b/arch/ppc64/kernel/sysfs.c
@@ -112,7 +112,6 @@ void ppc64_enable_pmcs(void)
unsigned long hid0;
#ifdef CONFIG_PPC_PSERIES
unsigned long set, reset;
- int ret;
#endif /* CONFIG_PPC_PSERIES */
/* Only need to enable them once */
@@ -145,11 +144,7 @@ void ppc64_enable_pmcs(void)
case PLATFORM_PSERIES_LPAR:
set = 1UL << 63;
reset = 0;
- ret = plpar_hcall_norets(H_PERFMON, set, reset);
- if (ret)
- printk(KERN_ERR "H_PERFMON call on cpu %u "
- "returned %d\n",
- smp_processor_id(), ret);
+ plpar_hcall_norets(H_PERFMON, set, reset);
break;
#endif /* CONFIG_PPC_PSERIES */
@@ -161,13 +156,6 @@ void ppc64_enable_pmcs(void)
/* instruct hypervisor to maintain PMCs */
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR)
get_paca()->lppaca.pmcregs_in_use = 1;
-
- /*
- * On SMT machines we have to set the run latch in the ctrl register
- * in order to make PMC6 spin.
- */
- if (cpu_has_feature(CPU_FTR_SMT))
- ppc64_runlatch_on();
#endif /* CONFIG_PPC_PSERIES */
}
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