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powerpc/pseries: Cleanup VPA registration and deregistration errors 

Make the VPA, SLB shadow and DTL registration and deregistration
functions print consistent messages on error. I needed the firmware
error code while chasing a kexec bug but we weren't printing it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2011-07-25 01:46:33 +00:00 committed by Benjamin Herrenschmidt
parent b1301797f3
commit 711ef84e80
3 changed files with 22 additions and 19 deletions
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19
arch/powerpc/platforms/pseries/kexec.c
View File

@ -39,17 +39,20 @@ static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
}
addr = __pa(get_slb_shadow());
if (unregister_slb_shadow(hard_smp_processor_id(), addr))
printk("SLB shadow buffer deregistration of "
"cpu %u (hw_cpu_id %d) failed\n",
ret = unregister_slb_shadow(hard_smp_processor_id(), addr);
if (ret) {
pr_err("WARNING: SLB shadow buffer deregistration "
"for cpu %d (hw %d) failed with %d\n",
smp_processor_id(),
hard_smp_processor_id());
hard_smp_processor_id(), ret);
}
addr = __pa(get_lppaca());
if (unregister_vpa(hard_smp_processor_id(), addr)) {
printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
"failed\n", smp_processor_id(),
hard_smp_processor_id());
ret = unregister_vpa(hard_smp_processor_id(), addr);
if (ret) {
pr_err("WARNING: VPA deregistration for cpu %d "
"(hw %d) failed with %d\n", smp_processor_id(),
hard_smp_processor_id(), ret);
}
}
}

17
arch/powerpc/platforms/pseries/lpar.c
View File

@ -67,9 +67,8 @@ void vpa_init(int cpu)
ret = register_vpa(hwcpu, addr);
if (ret) {
printk(KERN_ERR "WARNING: vpa_init: VPA registration for "
"cpu %d (hw %d) of area %lx returns %ld\n",
cpu, hwcpu, addr, ret);
pr_err("WARNING: VPA registration for cpu %d (hw %d) of area "
"%lx failed with %ld\n", cpu, hwcpu, addr, ret);
return;
}
/*
@ -80,10 +79,9 @@ void vpa_init(int cpu)
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
ret = register_slb_shadow(hwcpu, addr);
if (ret)
printk(KERN_ERR
"WARNING: vpa_init: SLB shadow buffer "
"registration for cpu %d (hw %d) of area %lx "
"returns %ld\n", cpu, hwcpu, addr, ret);
pr_err("WARNING: SLB shadow buffer registration for "
"cpu %d (hw %d) of area %lx failed with %ld\n",
cpu, hwcpu, addr, ret);
}
/*
@ -100,8 +98,9 @@ void vpa_init(int cpu)
dtl->enqueue_to_dispatch_time = DISPATCH_LOG_BYTES;
ret = register_dtl(hwcpu, __pa(dtl));
if (ret)
pr_warn("DTL registration failed for cpu %d (%ld)\n",
cpu, ret);
pr_err("WARNING: DTL registration of cpu %d (hw %d) "
"failed with %ld\n", smp_processor_id(),
hwcpu, ret);
lppaca_of(cpu).dtl_enable_mask = 2;
}
}

5
arch/powerpc/platforms/pseries/setup.c
View File

@ -324,8 +324,9 @@ static int alloc_dispatch_logs(void)
dtl->enqueue_to_dispatch_time = DISPATCH_LOG_BYTES;
ret = register_dtl(hard_smp_processor_id(), __pa(dtl));
if (ret)
pr_warn("DTL registration failed for boot cpu %d (%d)\n",
smp_processor_id(), ret);
pr_err("WARNING: DTL registration of cpu %d (hw %d) failed "
"with %d\n", smp_processor_id(),
hard_smp_processor_id(), ret);
get_paca()->lppaca_ptr->dtl_enable_mask = 2;
return 0;