static struct op_counter_config ctr[OP_MAX_COUNTER];
static struct op_system_config sys;
+static int op_per_cpu_rc;
+
static void op_handle_interrupt(struct pt_regs *regs)
{
model->handle_interrupt(regs, ctr);
static void op_powerpc_cpu_setup(void *dummy)
{
- model->cpu_setup(ctr);
+ int ret;
+
+ ret = model->cpu_setup(ctr);
+
+ if (ret != 0)
+ op_per_cpu_rc = ret;
}
static int op_powerpc_setup(void)
{
int err;
+ op_per_cpu_rc = 0;
+
/* Grab the hardware */
err = reserve_pmc_hardware(op_handle_interrupt);
if (err)
return err;
/* Pre-compute the values to stuff in the hardware registers. */
- model->reg_setup(ctr, &sys, model->num_counters);
+ op_per_cpu_rc = model->reg_setup(ctr, &sys, model->num_counters);
- /* Configure the registers on all cpus. */
- on_each_cpu(op_powerpc_cpu_setup, NULL, 0, 1);
+ if (op_per_cpu_rc)
+ goto out;
- return 0;
+ /* Configure the registers on all cpus. If an error occurs on one
+ * of the cpus, op_per_cpu_rc will be set to the error */
+ on_each_cpu(op_powerpc_cpu_setup, NULL, 1);
+
+out: if (op_per_cpu_rc) {
+ /* error on setup release the performance counter hardware */
+ release_pmc_hardware();
+ }
+
+ return op_per_cpu_rc;
}
static void op_powerpc_shutdown(void)
static void op_powerpc_cpu_start(void *dummy)
{
- model->start(ctr);
+ /* If any of the cpus have return an error, set the
+ * global flag to the error so it can be returned
+ * to the generic OProfile caller.
+ */
+ int ret;
+
+ ret = model->start(ctr);
+ if (ret != 0)
+ op_per_cpu_rc = ret;
}
static int op_powerpc_start(void)
{
+ op_per_cpu_rc = 0;
+
if (model->global_start)
- model->global_start(ctr);
- if (model->start)
- on_each_cpu(op_powerpc_cpu_start, NULL, 0, 1);
- return 0;
+ return model->global_start(ctr);
+ if (model->start) {
+ on_each_cpu(op_powerpc_cpu_start, NULL, 1);
+ return op_per_cpu_rc;
+ }
+ return -EIO; /* No start function is defined for this
+ power architecture */
}
static inline void op_powerpc_cpu_stop(void *dummy)
static void op_powerpc_stop(void)
{
if (model->stop)
- on_each_cpu(op_powerpc_cpu_stop, NULL, 0, 1);
+ on_each_cpu(op_powerpc_cpu_stop, NULL, 1);
if (model->global_stop)
model->global_stop();
}
switch (cur_cpu_spec->oprofile_type) {
#ifdef CONFIG_PPC64
-#ifdef CONFIG_PPC_CELL_NATIVE
+#ifdef CONFIG_OPROFILE_CELL
case PPC_OPROFILE_CELL:
if (firmware_has_feature(FW_FEATURE_LPAR))
return -ENODEV;
model = &op_model_cell;
+ ops->sync_start = model->sync_start;
+ ops->sync_stop = model->sync_stop;
break;
#endif
case PPC_OPROFILE_RS64:
model = &op_model_7450;
break;
#endif
-#ifdef CONFIG_FSL_BOOKE
- case PPC_OPROFILE_BOOKE:
- model = &op_model_fsl_booke;
+#if defined(CONFIG_FSL_EMB_PERFMON)
+ case PPC_OPROFILE_FSL_EMB:
+ model = &op_model_fsl_emb;
break;
#endif
default: