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-rw-r--r--arch/powerpc/platforms/Kconfig2
-rw-r--r--arch/powerpc/platforms/pseries/dtl.c2
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-cpu.c4
-rw-r--r--arch/powerpc/platforms/pseries/io_event_irq.c8
-rw-r--r--arch/powerpc/platforms/pseries/kexec.c34
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c19
-rw-r--r--arch/powerpc/platforms/pseries/plpar_wrappers.h12
-rw-r--r--arch/powerpc/platforms/pseries/setup.c5
8 files changed, 47 insertions, 39 deletions
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index d0af7fb..b9ba861 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -24,7 +24,7 @@ source "arch/powerpc/platforms/wsp/Kconfig"
config KVM_GUEST
bool "KVM Guest support"
- default y
+ default n
---help---
This option enables various optimizations for running under the KVM
hypervisor. Overhead for the kernel when not running inside KVM should
diff --git a/arch/powerpc/platforms/pseries/dtl.c b/arch/powerpc/platforms/pseries/dtl.c
index e919007..0e86563 100644
--- a/arch/powerpc/platforms/pseries/dtl.c
+++ b/arch/powerpc/platforms/pseries/dtl.c
@@ -181,7 +181,7 @@ static void dtl_stop(struct dtl *dtl)
lppaca_of(dtl->cpu).dtl_enable_mask = 0x0;
- unregister_dtl(hwcpu, __pa(dtl->buf));
+ unregister_dtl(hwcpu);
}
static u64 dtl_current_index(struct dtl *dtl)
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index bc02885..83a3ca2 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -135,7 +135,7 @@ static void pseries_mach_cpu_die(void)
get_lppaca()->idle = 0;
if (get_preferred_offline_state(cpu) == CPU_STATE_ONLINE) {
- unregister_slb_shadow(hwcpu, __pa(get_slb_shadow()));
+ unregister_slb_shadow(hwcpu);
/*
* Call to start_secondary_resume() will not return.
@@ -150,7 +150,7 @@ static void pseries_mach_cpu_die(void)
WARN_ON(get_preferred_offline_state(cpu) != CPU_STATE_OFFLINE);
set_cpu_current_state(cpu, CPU_STATE_OFFLINE);
- unregister_slb_shadow(hwcpu, __pa(get_slb_shadow()));
+ unregister_slb_shadow(hwcpu);
rtas_stop_self();
/* Should never get here... */
diff --git a/arch/powerpc/platforms/pseries/io_event_irq.c b/arch/powerpc/platforms/pseries/io_event_irq.c
index c829e60..2c4dd1f 100644
--- a/arch/powerpc/platforms/pseries/io_event_irq.c
+++ b/arch/powerpc/platforms/pseries/io_event_irq.c
@@ -212,17 +212,15 @@ static int __init ioei_init(void)
struct device_node *np;
ioei_check_exception_token = rtas_token("check-exception");
- if (ioei_check_exception_token == RTAS_UNKNOWN_SERVICE) {
- pr_warning("IO Event IRQ not supported on this system !\n");
+ if (ioei_check_exception_token == RTAS_UNKNOWN_SERVICE)
return -ENODEV;
- }
+
np = of_find_node_by_path("/event-sources/ibm,io-events");
if (np) {
request_event_sources_irqs(np, ioei_interrupt, "IO_EVENT");
+ pr_info("IBM I/O event interrupts enabled\n");
of_node_put(np);
} else {
- pr_err("io_event_irq: No ibm,io-events on system! "
- "IO Event interrupt disabled.\n");
return -ENODEV;
}
return 0;
diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c
index 54cf3a4a..7d94bdc 100644
--- a/arch/powerpc/platforms/pseries/kexec.c
+++ b/arch/powerpc/platforms/pseries/kexec.c
@@ -25,20 +25,30 @@ static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
{
/* Don't risk a hypervisor call if we're crashing */
if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
- unsigned long addr;
+ int ret;
+ int cpu = smp_processor_id();
+ int hwcpu = hard_smp_processor_id();
- 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",
- smp_processor_id(),
- hard_smp_processor_id());
+ if (get_lppaca()->dtl_enable_mask) {
+ ret = unregister_dtl(hwcpu);
+ if (ret) {
+ pr_err("WARNING: DTL deregistration for cpu "
+ "%d (hw %d) failed with %d\n",
+ cpu, hwcpu, ret);
+ }
+ }
+
+ ret = unregister_slb_shadow(hwcpu);
+ if (ret) {
+ pr_err("WARNING: SLB shadow buffer deregistration "
+ "for cpu %d (hw %d) failed with %d\n",
+ cpu, hwcpu, 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(hwcpu);
+ if (ret) {
+ pr_err("WARNING: VPA deregistration for cpu %d "
+ "(hw %d) failed with %d\n", cpu, hwcpu, ret);
}
}
}
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index f7205d3..c9a29da 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -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;
}
}
@@ -204,7 +203,7 @@ static void pSeries_lpar_hptab_clear(void)
unsigned long ptel;
} ptes[4];
long lpar_rc;
- int i, j;
+ unsigned long i, j;
/* Read in batches of 4,
* invalidate only valid entries not in the VRMA
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 4bf2120..41c24c1 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -53,9 +53,9 @@ static inline long vpa_call(unsigned long flags, unsigned long cpu,
return plpar_hcall_norets(H_REGISTER_VPA, flags, cpu, vpa);
}
-static inline long unregister_vpa(unsigned long cpu, unsigned long vpa)
+static inline long unregister_vpa(unsigned long cpu)
{
- return vpa_call(0x5, cpu, vpa);
+ return vpa_call(0x5, cpu, 0);
}
static inline long register_vpa(unsigned long cpu, unsigned long vpa)
@@ -63,9 +63,9 @@ static inline long register_vpa(unsigned long cpu, unsigned long vpa)
return vpa_call(0x1, cpu, vpa);
}
-static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa)
+static inline long unregister_slb_shadow(unsigned long cpu)
{
- return vpa_call(0x7, cpu, vpa);
+ return vpa_call(0x7, cpu, 0);
}
static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
@@ -73,9 +73,9 @@ static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
return vpa_call(0x3, cpu, vpa);
}
-static inline long unregister_dtl(unsigned long cpu, unsigned long vpa)
+static inline long unregister_dtl(unsigned long cpu)
{
- return vpa_call(0x6, cpu, vpa);
+ return vpa_call(0x6, cpu, 0);
}
static inline long register_dtl(unsigned long cpu, unsigned long vpa)
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index d00e529..0969fd9 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -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;
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