[src/trunk]: src Introduce sh3/sysarch.h and add SH3_SYNC_ICACHE

[uwe <uwe%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/85a9ccdd4ca9
branches:  trunk
changeset: 320841:85a9ccdd4ca9
user:      uwe <uwe%NetBSD.org@localhost>
date:      Fri Mar 02 23:11:42 2018 +0000

description:
Introduce sh3/sysarch.h and add SH3_SYNC_ICACHE

diffstat:

 distrib/sets/lists/comp/ad.sh3 |   3 +-
 sys/arch/sh3/include/Makefile  |   4 +-
 sys/arch/sh3/include/sysarch.h |  49 ++++++++++++++++++++++++++++++++++++++++++
 sys/arch/sh3/sh3/sys_machdep.c |  36 ++++++++++++++++++++++++++++--
 4 files changed, 86 insertions(+), 6 deletions(-)

diffs (146 lines):

diff -r f7edc95e82c0 -r 85a9ccdd4ca9 distrib/sets/lists/comp/ad.sh3
--- a/distrib/sets/lists/comp/ad.sh3    Fri Mar 02 23:07:55 2018 +0000
+++ b/distrib/sets/lists/comp/ad.sh3    Fri Mar 02 23:11:42 2018 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: ad.sh3,v 1.38 2018/02/13 10:02:12 mrg Exp $
+# $NetBSD: ad.sh3,v 1.39 2018/03/02 23:11:42 uwe Exp $
 ./usr/include/gcc-4.5/tgmath.h                 comp-obsolete           obsolete
 ./usr/include/gcc-4.8/tgmath.h                 comp-c-include          obsolete
 ./usr/include/gcc-5/tgmath.h                   comp-c-include          gcccmds,gcc=5
@@ -52,6 +52,7 @@
 ./usr/include/sh3/sh_opcode.h                  comp-c-include
 ./usr/include/sh3/signal.h                     comp-c-include
 ./usr/include/sh3/stdarg.h                     comp-obsolete           obsolete
+./usr/include/sh3/sysarch.h                    comp-c-include
 ./usr/include/sh3/types.h                      comp-c-include
 ./usr/include/sh3/va-sh.h                      comp-obsolete   obsolete
 ./usr/include/sh3/varargs.h                    comp-obsolete           obsolete
diff -r f7edc95e82c0 -r 85a9ccdd4ca9 sys/arch/sh3/include/Makefile
--- a/sys/arch/sh3/include/Makefile     Fri Mar 02 23:07:55 2018 +0000
+++ b/sys/arch/sh3/include/Makefile     Fri Mar 02 23:11:42 2018 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.27 2016/08/25 12:14:10 christos Exp $
+#      $NetBSD: Makefile,v 1.28 2018/03/02 23:11:42 uwe Exp $
 
 INCSDIR= /usr/include/sh3
 
@@ -17,7 +17,7 @@
        pte.h ptrace.h \
        reg.h rwlock.h \
        setjmp.h sh_opcode.h \
-       signal.h \
+       signal.h sysarch.h \
        types.h \
        vmparam.h \
        wchar_limits.h
diff -r f7edc95e82c0 -r 85a9ccdd4ca9 sys/arch/sh3/include/sysarch.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sh3/include/sysarch.h    Fri Mar 02 23:11:42 2018 +0000
@@ -0,0 +1,49 @@
+/*     $NetBSD: sysarch.h,v 1.1 2018/03/02 23:11:42 uwe Exp $ */
+
+/*-
+ * Copyright (c) 2017 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _SH3_SYSARCH_H_
+#define _SH3_SYSARCH_H_
+
+/*
+ * Architecture specific syscalls (sh3)
+ */
+#define SH3_SYNC_ICACHE                0
+
+struct sh3_sync_icache_args {
+       uintptr_t       addr;           /* Virtual start address */
+       size_t          len;            /* Region size */
+};
+
+#ifndef _KERNEL
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+int    sh3_sync_icache(uintptr_t, size_t);
+int    sysarch(int, void *);
+__END_DECLS
+#endif /* !_KERNEL */
+#endif /* !_SH3_SYSARCH_H_ */
diff -r f7edc95e82c0 -r 85a9ccdd4ca9 sys/arch/sh3/sh3/sys_machdep.c
--- a/sys/arch/sh3/sh3/sys_machdep.c    Fri Mar 02 23:07:55 2018 +0000
+++ b/sys/arch/sh3/sh3/sys_machdep.c    Fri Mar 02 23:11:42 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sys_machdep.c,v 1.13 2007/12/22 08:59:02 dsl Exp $     */
+/*     $NetBSD: sys_machdep.c,v 1.14 2018/03/02 23:11:42 uwe Exp $     */
 
 /*-
  * Copyright (c) 1990 The Regents of the University of California.
@@ -73,16 +73,46 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sys_machdep.c,v 1.13 2007/12/22 08:59:02 dsl Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sys_machdep.c,v 1.14 2018/03/02 23:11:42 uwe Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/mount.h>
 #include <sys/syscallargs.h>
 
+#include <sh3/sysarch.h>
+#include <sh3/cache.h>
+
 int
 sys_sysarch(struct lwp *l, const struct sys_sysarch_args *uap, register_t *retval)
 {
+       /* {
+               syscallarg(int) op;
+               syscallarg(void *) parms;
+       } */
+       int op;
+       int error = 0;
 
-       return (ENOSYS);
+       op = SCARG(uap, op);
+       switch (op) {
+       case SH3_SYNC_ICACHE: {
+               struct sh3_sync_icache_args args;
+
+               error = copyin(SCARG(uap, parms), &args, sizeof(args));
+               if (error != 0)
+                       break;
+
+               if (args.len < (size_t)sh_cache_size_icache)
+                       sh_icache_sync_range_index(args.addr, args.len);
+               else
+                       sh_icache_sync_all();
+               break;
+       }
+
+       default:
+               error = ENOSYS;
+               break;
+       }
+
+       return error;
 }