Module Name: src
Committed By: ryo
Date: Thu Sep 24 08:50:09 UTC 2020
Modified Files:
src/sys/arch/arm/cortex: gicv3_its.c
Log Message:
need to swap on big endian machines.
"The ITS command queue uses a little endian memory order model." (GIC
Architecture Specification)
To generate a diff of this commit:
cvs rdiff -u -r1.27 -r1.28 src/sys/arch/arm/cortex/gicv3_its.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/cortex/gicv3_its.c
diff -u src/sys/arch/arm/cortex/gicv3_its.c:1.27 src/sys/arch/arm/cortex/gicv3_its.c:1.28
--- src/sys/arch/arm/cortex/gicv3_its.c:1.27 Thu Feb 13 02:12:06 2020
+++ src/sys/arch/arm/cortex/gicv3_its.c Thu Sep 24 08:50:09 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: gicv3_its.c,v 1.27 2020/02/13 02:12:06 jmcneill Exp $ */
+/* $NetBSD: gicv3_its.c,v 1.28 2020/09/24 08:50:09 ryo Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -32,7 +32,7 @@
#define _INTR_PRIVATE
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: gicv3_its.c,v 1.27 2020/02/13 02:12:06 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: gicv3_its.c,v 1.28 2020/09/24 08:50:09 ryo Exp $");
#include <sys/param.h>
#include <sys/kmem.h>
@@ -118,7 +118,13 @@ gits_command(struct gicv3_its *its, cons
cwriter = gits_read_8(its, GITS_CWRITER);
woff = cwriter & GITS_CWRITER_Offset;
+#if _BYTE_ORDER == _BIG_ENDIAN
+ uint64_t *dw = (uint64_t *)(its->its_cmd.base + woff);
+ for (int i = 0; i < __arraycount(cmd->dw); i++)
+ dw[i] = htole64(cmd->dw[i]);
+#else
memcpy(its->its_cmd.base + woff, cmd->dw, sizeof(cmd->dw));
+#endif
bus_dmamap_sync(its->its_dmat, its->its_cmd.map, woff, sizeof(cmd->dw), BUS_DMASYNC_PREWRITE);
woff += sizeof(cmd->dw);
