Author: andrew
Date: Tue Nov 17 10:17:18 2020
New Revision: 367754
URL: https://svnweb.freebsd.org/changeset/base/367754
Log:
Allow the GICv3 ACPI driver to attach to a GICv4
The same driver works on both, allow the driver to attach to a GICv4
controller with the ACPI attachment.
Reported by: Andrey Fesenko <f0andrey_gmail.com>
Sponsored by: Innovate UK
Modified:
head/sys/arm64/arm64/gic_v3_acpi.c
Modified: head/sys/arm64/arm64/gic_v3_acpi.c
==============================================================================
--- head/sys/arm64/arm64/gic_v3_acpi.c Tue Nov 17 08:11:17 2020
(r367753)
+++ head/sys/arm64/arm64/gic_v3_acpi.c Tue Nov 17 10:17:18 2020
(r367754)
@@ -168,9 +168,15 @@ gic_v3_acpi_identify(driver_t *driver, device_t parent
"No gic interrupt or distributor table\n");
goto out;
}
- /* This is for the wrong GIC version */
- if (madt_data.dist->Version != ACPI_MADT_GIC_VERSION_V3)
+
+ /* Check the GIC version is supported by thiss driver */
+ switch(madt_data.dist->Version) {
+ case ACPI_MADT_GIC_VERSION_V3:
+ case ACPI_MADT_GIC_VERSION_V4:
+ break;
+ default:
goto out;
+ }
dev = BUS_ADD_CHILD(parent, BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE,
"gic", -1);
@@ -199,6 +205,7 @@ gic_v3_acpi_probe(device_t dev)
switch((uintptr_t)acpi_get_private(dev)) {
case ACPI_MADT_GIC_VERSION_V3:
+ case ACPI_MADT_GIC_VERSION_V4:
break;
default:
return (ENXIO);
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