Add ssm(4), a driver for the scalable shared memory device found on

Serengeti and Starcat systems.

2 files changed, 95 insertions, 2 deletions

diff --git a/sys/arch/sparc64/conf/files.sparc64 b/sys/arch/sparc64/conf/files.sparc64
index b7ffe67e729..e39ba327fec 100644
--- a/sys/arch/sparc64/conf/files.sparc64
+++ b/sys/arch/sparc64/conf/files.sparc64
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.sparc64,v 1.107 2008/07/06 07:27:43 kettenis Exp $
+#	$OpenBSD: files.sparc64,v 1.108 2008/07/06 08:52:26 kettenis Exp $
 #	$NetBSD: files.sparc64,v 1.50 2001/08/10 20:53:50 eeh Exp $
 
 # maxpartitions must be first item in files.${ARCH}
@@ -9,11 +9,15 @@ maxusers 2 8 1024
 define	mainbus {}
 device	mainbus: pcibus, mainbus
 attach	mainbus at root
-file	arch/sparc64/dev/upa.c			upa
+
+device	ssm: mainbus
+attach	ssm at mainbus
+file	arch/sparc64/dev/ssm.c			ssm
 
 define	upa {}
 device	upa
 attach	upa at mainbus
+file	arch/sparc64/dev/upa.c			upa
 
 define	central {}
 device	central
diff --git a/sys/arch/sparc64/dev/ssm.c b/sys/arch/sparc64/dev/ssm.c
new file mode 100644
index 00000000000..75ddf46a67c
--- /dev/null
+++ b/sys/arch/sparc64/dev/ssm.c
@@ -0,0 +1,89 @@
+/*	$OpenBSD: ssm.c,v 1.1 2008/07/06 08:51:44 kettenis Exp $	*/
+/*
+ * Copyright (c) 2008 Mark Kettenis
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/systm.h>
+
+#include <machine/autoconf.h>
+#include <machine/openfirm.h>
+
+int	ssm_match(struct device *, void *, void *);
+void	ssm_attach(struct device *, struct device *, void *);
+
+struct cfattach ssm_ca = {
+	sizeof(struct device), ssm_match, ssm_attach
+};
+
+struct cfdriver ssm_cd = {
+	NULL, "ssm", DV_DULL
+};
+
+int	ssm_print(void *, const char *);
+
+int
+ssm_match(struct device *parent, void *match, void *aux)
+{
+	struct mainbus_attach_args *ma = aux;
+
+	if (strcmp(ma->ma_name, "ssm") == 0)
+		return (1);
+
+	return (0);
+}
+
+void
+ssm_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct mainbus_attach_args *ma = aux;
+	struct mainbus_attach_args nma;
+	char buf[32];
+	int node;
+
+	printf("\n");
+
+	for (node = OF_child(ma->ma_node); node; node = OF_peer(node)) {
+		if (!checkstatus(node))
+			continue;
+
+		OF_getprop(node, "name", buf, sizeof(buf));
+		if (strcmp(buf, "cpu") == 0)
+			OF_getprop(node, "compatible", buf, sizeof(buf));
+
+		bzero(&nma, sizeof(nma));
+		nma.ma_bustag = ma->ma_bustag;
+		nma.ma_dmatag = ma->ma_dmatag;
+		nma.ma_node = node;
+		nma.ma_name = buf;
+		nma.ma_upaid = getpropint(node, "portid", -1);
+		getprop(node, "reg", sizeof(*nma.ma_reg),
+		    &nma.ma_nreg, (void **)&nma.ma_reg);
+		config_found(self, &nma, ssm_print);
+		free(nma.ma_reg, M_DEVBUF);
+	}
+}
+
+int
+ssm_print(void *aux, const char *name)
+{
+	struct mainbus_attach_args *ma = aux;
+
+	if (name)
+		printf("\"%s\" at %s", ma->ma_name, name);
+	return (UNCONF);
+}