Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f6e17f9b authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt
Browse files

powerpc/xics: Make sure we have a sensible default distribution server 



Even when nothing is specified in the device tree, and despite the
fact that we don't setup links properly yet, we still need a reasonable
value in there or some interrupts won't be setup properly to point to
an existing processor.

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 50fb8ebe

arch/powerpc/sysdev/xics/xics-common.c

+9 −3
Original line number Diff line number Diff line
@@ -57,7 +57,9 @@ void xics_update_irq_servers(void) 
	BUG_ON(!np);



	hcpuid = get_hard_smp_processor_id(boot_cpuid);

	xics_default_server = hcpuid;

	xics_default_server = xics_default_distrib_server = hcpuid;



	pr_devel("xics: xics_default_server = 0x%x\n", xics_default_server);



	ireg = of_get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen);

	if (!ireg) {
@@ -75,9 +77,11 @@ void xics_update_irq_servers(void) 
	for (j = 0; j < i; j += 2) {

		if (ireg[j] == hcpuid) {

			xics_default_distrib_server = ireg[j+1];

			break;

		}

	}



	pr_devel("xics: xics_default_distrib_server = 0x%x\n",

		 xics_default_distrib_server);

	of_node_put(np);

}
@@ -113,7 +117,7 @@ void xics_mask_unknown_vec(unsigned int vec) 
{

	struct ics *ics;



	pr_err("Interrupt %u (real) is invalid, disabling it.\n", vec);

	pr_err("Interrupt 0x%x (real) is invalid, disabling it.\n", vec);



	list_for_each_entry(ics, &ics_list, link)

		ics->mask_unknown(ics, vec);
@@ -293,6 +297,8 @@ void xics_migrate_irqs_away(void) 
 * If not we set it to the first cpu in the mask, even if multiple cpus

 * are set. This is so things like irqbalance (which set core and package

 * wide affinities) do the right thing.

 *

 * We need to fix this to implement support for the links

 */

int xics_get_irq_server(unsigned int virq, const struct cpumask *cpumask,

			unsigned int strict_check)