Module Name: src
Committed By: jmcneill
Date: Wed Nov 17 21:46:12 UTC 2021
Modified Files:
src/sys/arch/arm/fdt: gicv3_fdt.c
Log Message:
gicv3: add support for mbi-alias property
The mbi-alias property, if present, contains the base address of a GICD
alias frame that contains only SET/CLRSPI registers. Use this instead of
the GICD register frame if present.
To generate a diff of this commit:
cvs rdiff -u -r1.15 -r1.16 src/sys/arch/arm/fdt/gicv3_fdt.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/fdt/gicv3_fdt.c
diff -u src/sys/arch/arm/fdt/gicv3_fdt.c:1.15 src/sys/arch/arm/fdt/gicv3_fdt.c:1.16
--- src/sys/arch/arm/fdt/gicv3_fdt.c:1.15 Wed Jan 27 03:10:19 2021
+++ src/sys/arch/arm/fdt/gicv3_fdt.c Wed Nov 17 21:46:12 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: gicv3_fdt.c,v 1.15 2021/01/27 03:10:19 thorpej Exp $ */
+/* $NetBSD: gicv3_fdt.c,v 1.16 2021/11/17 21:46:12 jmcneill Exp $ */
/*-
* Copyright (c) 2015-2018 Jared McNeill <jmcne...@invisible.ca>
@@ -31,7 +31,7 @@
#define _INTR_PRIVATE
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: gicv3_fdt.c,v 1.15 2021/01/27 03:10:19 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: gicv3_fdt.c,v 1.16 2021/11/17 21:46:12 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -273,14 +273,18 @@ gicv3_fdt_attach_mbi(struct gicv3_fdt_so
bus_addr_t addr;
int len, frame_count;
- if (of_hasprop(sc->sc_phandle, "mbi-alias")) {
- aprint_error_dev(sc->sc_gic.sc_dev, "'mbi-alias' property not supported\n");
+ /*
+ * If a GICD alias frame containing only the SET/CLRSPI registers
+ * exists, the base address will be reported by the 'mbi-alias'
+ * property. If this doesn't exist, use the GICD register frame
+ * instead.
+ */
+ if (of_getprop_uint64(sc->sc_phandle, "mbi-alias", &addr) != 0 &&
+ fdtbus_get_reg(sc->sc_phandle, 0, &addr, NULL) != 0) {
+ aprint_error_dev(sc->sc_gic.sc_dev, "couldn't find MBI register frame\n");
return;
}
- if (fdtbus_get_reg(sc->sc_phandle, 0, &addr, NULL) != 0)
- return;
-
ranges = fdtbus_get_prop(sc->sc_phandle, "mbi-ranges", &len);
if (ranges == NULL) {
aprint_error_dev(sc->sc_gic.sc_dev, "missing 'mbi-ranges' property\n");
