return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(pru_rproc_debug_ss_fops, pru_rproc_debug_ss_get,
- pru_rproc_debug_ss_set, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(pru_rproc_debug_ss_fops, pru_rproc_debug_ss_get,
+ pru_rproc_debug_ss_set, "%llu\n");
/*
* Create PRU-specific debugfs entries
static void pru_dispose_irq_mapping(struct pru_rproc *pru)
{
- while (pru->evt_count--) {
+ if (!pru->mapped_irq)
+ return;
+
+ while (pru->evt_count) {
+ pru->evt_count--;
if (pru->mapped_irq[pru->evt_count] > 0)
irq_dispose_mapping(pru->mapped_irq[pru->evt_count]);
}
kfree(pru->mapped_irq);
+ pru->mapped_irq = NULL;
}
/*
struct pru_rproc *pru = rproc->priv;
struct pru_irq_rsc *rsc = pru->pru_interrupt_map;
struct irq_fwspec fwspec;
- struct device_node *irq_parent;
+ struct device_node *parent, *irq_parent;
int i, ret = 0;
/* not having pru_interrupt_map is not an error */
pru->evt_count = rsc->num_evts;
pru->mapped_irq = kcalloc(pru->evt_count, sizeof(unsigned int),
GFP_KERNEL);
- if (!pru->mapped_irq)
+ if (!pru->mapped_irq) {
+ pru->evt_count = 0;
return -ENOMEM;
+ }
/*
* parse and fill in system event to interrupt channel and
- * channel-to-host mapping
+ * channel-to-host mapping. The interrupt controller to be used
+ * for these mappings for a given PRU remoteproc is always its
+ * corresponding sibling PRUSS INTC node.
*/
- irq_parent = of_irq_find_parent(pru->dev->of_node);
+ parent = of_get_parent(dev_of_node(pru->dev));
+ if (!parent) {
+ kfree(pru->mapped_irq);
+ pru->mapped_irq = NULL;
+ pru->evt_count = 0;
+ return -ENODEV;
+ }
+
+ irq_parent = of_get_child_by_name(parent, "interrupt-controller");
+ of_node_put(parent);
if (!irq_parent) {
kfree(pru->mapped_irq);
+ pru->mapped_irq = NULL;
+ pru->evt_count = 0;
return -ENODEV;
}
pru->mapped_irq[i] = irq_create_fwspec_mapping(&fwspec);
if (!pru->mapped_irq[i]) {
- dev_err(dev, "failed to get virq\n");
- ret = pru->mapped_irq[i];
+ dev_err(dev, "failed to get virq for fw mapping %d: event %d chnl %d host %d\n",
+ i, fwspec.param[0], fwspec.param[1],
+ fwspec.param[2]);
+ ret = -EINVAL;
goto map_fail;
}
}
+ of_node_put(irq_parent);
return ret;
map_fail:
pru_dispose_irq_mapping(pru);
+ of_node_put(irq_parent);
return ret;
}
pru_control_write_reg(pru, PRU_CTRL_CTRL, val);
/* dispose irq mapping - new firmware can provide new mapping */
- if (pru->mapped_irq)
- pru_dispose_irq_mapping(pru);
+ pru_dispose_irq_mapping(pru);
return 0;
}
* core for any PRU client drivers. The PRU Instruction RAM access is restricted
* only to the PRU loader code.
*/
-static void *pru_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len)
+static void *pru_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{
struct pru_rproc *pru = rproc->priv;