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authorDean Nelson <dcn@sgi.com>2008-07-30 09:34:05 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-30 20:41:49 +0400
commit94bd2708d4a95d7da5a1c7c28a063eccd127fb69 (patch)
treebcc65d3966e240017f8fb355114ec07c906b0b63 /drivers/misc/sgi-xp/xpc_uv.c
parent908787db9b95f548270af18d83d62b9d2020ca10 (diff)
downloadlinux-94bd2708d4a95d7da5a1c7c28a063eccd127fb69.tar.xz
sgi-xp: prepare xpc_rsvd_page to work on either sn2 or uv hardware
Prepare XPC's reserved page header to work for either sn2 or uv. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc/sgi-xp/xpc_uv.c')
-rw-r--r--drivers/misc/sgi-xp/xpc_uv.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
new file mode 100644
index 000000000000..8327cd4017ec
--- /dev/null
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -0,0 +1,48 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
+ */
+
+/*
+ * Cross Partition Communication (XPC) uv-based functions.
+ *
+ * Architecture specific implementation of common functions.
+ *
+ */
+
+#include <linux/kernel.h>
+
+/* >>> #include <gru/grukservices.h> */
+/* >>> uv_gpa() is defined in <gru/grukservices.h> */
+#define uv_gpa(_a) ((unsigned long)_a)
+
+/* >>> temporarily define next three items for xpc.h */
+#define SGI_XPC_ACTIVATE 23
+#define SGI_XPC_NOTIFY 24
+#define sn_send_IPI_phys(_a, _b, _c, _d)
+
+#include "xpc.h"
+
+static void *xpc_activate_mq;
+
+static enum xp_retval
+xpc_rsvd_page_init_uv(struct xpc_rsvd_page *rp)
+{
+ /* >>> need to have established xpc_activate_mq earlier */
+ rp->sn.activate_mq_gpa = uv_gpa(xpc_activate_mq);
+ return xpSuccess;
+}
+
+void
+xpc_init_uv(void)
+{
+ xpc_rsvd_page_init = xpc_rsvd_page_init_uv;
+}
+
+void
+xpc_exit_uv(void)
+{
+}