From 059e277e5ba6486b5ef66deb336d4ef887f163ac Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Thu, 7 Jul 2005 17:56:36 -0700 Subject: [PATCH] [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/kernel/sysfs.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/arch/ppc64/kernel/sysfs.c b/arch/ppc64/kernel/sysfs.c index 2f704a2cafb1..02b8ac4e0168 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 */ } -- 2.30.2