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Diffstat (limited to 'arch/s390/oprofile/hwsampler.c')
-rw-r--r--arch/s390/oprofile/hwsampler.c52
1 files changed, 23 insertions, 29 deletions
diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c
index 12bea05a0fc..c6646de07bf 100644
--- a/arch/s390/oprofile/hwsampler.c
+++ b/arch/s390/oprofile/hwsampler.c
@@ -18,7 +18,8 @@
#include <linux/oom.h>
#include <linux/oprofile.h>
-#include <asm/lowcore.h>
+#include <asm/facility.h>
+#include <asm/cpu_mf.h>
#include <asm/irq.h>
#include "hwsampler.h"
@@ -30,12 +31,6 @@
#define ALERT_REQ_MASK 0x4000000000000000ul
#define BUFFER_FULL_MASK 0x8000000000000000ul
-#define EI_IEA (1 << 31) /* invalid entry address */
-#define EI_ISE (1 << 30) /* incorrect SDBT entry */
-#define EI_PRA (1 << 29) /* program request alert */
-#define EI_SACA (1 << 23) /* sampler authorization change alert */
-#define EI_LSDA (1 << 22) /* loss of sample data alert */
-
DECLARE_PER_CPU(struct hws_cpu_buffer, sampler_cpu_buffer);
struct hws_execute_parms {
@@ -232,9 +227,20 @@ static inline unsigned long *trailer_entry_ptr(unsigned long v)
return (unsigned long *) ret;
}
-/* prototypes for external interrupt handler and worker */
static void hws_ext_handler(struct ext_code ext_code,
- unsigned int param32, unsigned long param64);
+ unsigned int param32, unsigned long param64)
+{
+ struct hws_cpu_buffer *cb = &__get_cpu_var(sampler_cpu_buffer);
+
+ if (!(param32 & CPU_MF_INT_SF_MASK))
+ return;
+
+ kstat_cpu(smp_processor_id()).irqs[EXTINT_CPM]++;
+ atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32);
+
+ if (hws_wq)
+ queue_work(hws_wq, &cb->worker);
+}
static void worker(struct work_struct *work);
@@ -673,18 +679,6 @@ int hwsampler_activate(unsigned int cpu)
return rc;
}
-static void hws_ext_handler(struct ext_code ext_code,
- unsigned int param32, unsigned long param64)
-{
- struct hws_cpu_buffer *cb;
-
- kstat_cpu(smp_processor_id()).irqs[EXTINT_CPM]++;
- cb = &__get_cpu_var(sampler_cpu_buffer);
- atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32);
- if (hws_wq)
- queue_work(hws_wq, &cb->worker);
-}
-
static int check_qsi_on_setup(void)
{
int rc;
@@ -760,23 +754,23 @@ static int worker_check_error(unsigned int cpu, int ext_params)
if (!sdbt || !*sdbt)
return -EINVAL;
- if (ext_params & EI_PRA)
+ if (ext_params & CPU_MF_INT_SF_PRA)
cb->req_alert++;
- if (ext_params & EI_LSDA)
+ if (ext_params & CPU_MF_INT_SF_LSDA)
cb->loss_of_sample_data++;
- if (ext_params & EI_IEA) {
+ if (ext_params & CPU_MF_INT_SF_IAE) {
cb->invalid_entry_address++;
rc = -EINVAL;
}
- if (ext_params & EI_ISE) {
+ if (ext_params & CPU_MF_INT_SF_ISE) {
cb->incorrect_sdbt_entry++;
rc = -EINVAL;
}
- if (ext_params & EI_SACA) {
+ if (ext_params & CPU_MF_INT_SF_SACA) {
cb->sample_auth_change_alert++;
rc = -EINVAL;
}
@@ -1009,7 +1003,7 @@ int hwsampler_deallocate(void)
if (hws_state != HWS_STOPPED)
goto deallocate_exit;
- ctl_clear_bit(0, 5); /* set bit 58 CR0 off */
+ measurement_alert_subclass_unregister();
deallocate_sdbt();
hws_state = HWS_DEALLOCATED;
@@ -1123,7 +1117,7 @@ int hwsampler_shutdown(void)
mutex_lock(&hws_sem);
if (hws_state == HWS_STOPPED) {
- ctl_clear_bit(0, 5); /* set bit 58 CR0 off */
+ measurement_alert_subclass_unregister();
deallocate_sdbt();
}
if (hws_wq) {
@@ -1198,7 +1192,7 @@ start_all_exit:
hws_oom = 1;
hws_flush_all = 0;
/* now let them in, 1407 CPUMF external interrupts */
- ctl_set_bit(0, 5); /* set CR0 bit 58 */
+ measurement_alert_subclass_register();
return 0;
}