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From: Andrew Turner <andrew@FreeBSD.org>
Date: Wed, 8 Jul 2015 15:33:00 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r285272 - head/sys/arm64/arm64
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Author: andrew
Date: Wed Jul  8 15:32:59 2015
New Revision: 285272
URL: https://svnweb.freebsd.org/changeset/base/285272

Log:
  Add support for ipi_all_but_self on arm64.
  
  Obtained from:	ABT Systems Ltd
  Sponsored by:	The freeBSD Foundation

Modified:
  head/sys/arm64/arm64/intr_machdep.c

Modified: head/sys/arm64/arm64/intr_machdep.c
==============================================================================
--- head/sys/arm64/arm64/intr_machdep.c	Wed Jul  8 14:07:06 2015	(r285271)
+++ head/sys/arm64/arm64/intr_machdep.c	Wed Jul  8 15:32:59 2015	(r285272)
@@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/cpuset.h>
 #include <sys/interrupt.h>
 #include <sys/queue.h>
+#include <sys/smp.h>
 
 #include <machine/cpufunc.h>
 #include <machine/intr.h>
@@ -473,9 +474,16 @@ arm_init_secondary(void)
 void
 ipi_all_but_self(u_int ipi)
 {
+	cpuset_t other_cpus;
 
-	/* ARM64TODO: We should support this */
-	panic("ipi_all_but_self");
+	other_cpus = all_cpus;
+	CPU_CLR(PCPU_GET(cpuid), &other_cpus);
+
+	/* ARM64TODO: This will be fixed with arm_intrng */
+	ipi += 16;
+
+	CTR2(KTR_SMP, "%s: ipi: %x", __func__, ipi);
+	PIC_IPI_SEND(root_pic, other_cpus, ipi);
 }
 
 void