Module Name: src
Committed By: jmcneill
Date: Sat Nov 4 14:47:06 UTC 2017
Modified Files:
src/sys/arch/evbarm/rpi: rpi_machdep.c
Log Message:
Firmware after May 8, 2017 places APs in WFE state at boot. Add a "sev"
after writing the start vector, otherwise secondary CPUs will not boot.
To generate a diff of this commit:
cvs rdiff -u -r1.80 -r1.81 src/sys/arch/evbarm/rpi/rpi_machdep.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/evbarm/rpi/rpi_machdep.c
diff -u src/sys/arch/evbarm/rpi/rpi_machdep.c:1.80 src/sys/arch/evbarm/rpi/rpi_machdep.c:1.81
--- src/sys/arch/evbarm/rpi/rpi_machdep.c:1.80 Wed Aug 16 20:54:19 2017
+++ src/sys/arch/evbarm/rpi/rpi_machdep.c Sat Nov 4 14:47:06 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: rpi_machdep.c,v 1.80 2017/08/16 20:54:19 jmcneill Exp $ */
+/* $NetBSD: rpi_machdep.c,v 1.81 2017/11/04 14:47:06 jmcneill Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rpi_machdep.c,v 1.80 2017/08/16 20:54:19 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rpi_machdep.c,v 1.81 2017/11/04 14:47:06 jmcneill Exp $");
#include "opt_arm_debug.h"
#include "opt_bcm283x.h"
@@ -660,6 +660,9 @@ rpi_bootstrap(void)
}
}
+ /* Wake up APs in case firmware has placed them in WFE state */
+ __asm __volatile("sev");
+
for (int loop = 0; loop < 16; loop++) {
if (arm_cpu_hatched == __BITS(arm_cpu_max - 1, 1))
break;
