patch-2.3.99-pre9 linux/include/asm-mips64/sn/io.h

• Lines: 72
• Date: Mon May 15 12:10:26 2000
• Orig file: v2.3.99-pre8/linux/include/asm-mips64/sn/io.h
• Orig date: Sat Feb 26 22:31:57 2000

diff -u --recursive --new-file v2.3.99-pre8/linux/include/asm-mips64/sn/io.h linux/include/asm-mips64/sn/io.h
@@ -1,4 +1,5 @@
-/* $Id: io.h,v 1.1 2000/02/04 07:40:53 ralf Exp $
+
+/* $Id: io.h,v 1.2 2000/02/02 16:35:57 ralf Exp $
  *
  * 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
@@ -10,6 +11,8 @@
 #ifndef _ASM_SN_IO_H
 #define _ASM_SN_IO_H
 
+#include <linux/config.h>
+#if !defined(CONFIG_SGI_IO)
 #include <asm/sn/sn0/addrs.h>
 
 #define IO_SPACE_BASE IO_BASE
@@ -18,5 +21,55 @@
 #define IO_SPACE_LIMIT 0xffffffff
 
 /* No isa_* versions, the Origin doesn't have ISA / EISA bridges.  */
+
+#else	/* CONFIG_SGI_IO */
+
+#define IIO_ITTE_BASE	0x400160	/* base of translation table entries */
+#define IIO_ITTE(bigwin)	(IIO_ITTE_BASE + 8*(bigwin))
+
+#define IIO_ITTE_OFFSET_BITS	5	/* size of offset field */
+#define IIO_ITTE_OFFSET_MASK	((1<<IIO_ITTE_OFFSET_BITS)-1)
+#define IIO_ITTE_OFFSET_SHIFT	0
+
+#define IIO_ITTE_WIDGET_BITS	4	/* size of widget field */
+#define IIO_ITTE_WIDGET_MASK	((1<<IIO_ITTE_WIDGET_BITS)-1)
+#define IIO_ITTE_WIDGET_SHIFT	8
+
+#define IIO_ITTE_IOSP		1	/* I/O Space bit */
+#define IIO_ITTE_IOSP_MASK	1
+#define IIO_ITTE_IOSP_SHIFT	12
+#define HUB_PIO_MAP_TO_MEM	0
+#define HUB_PIO_MAP_TO_IO	1
+
+#define IIO_ITTE_INVALID_WIDGET	3	/* an invalid widget  */
+
+#define IIO_ITTE_PUT(nasid, bigwin, io_or_mem, widget, addr) \
+	REMOTE_HUB_S((nasid), IIO_ITTE(bigwin), \
+		(((((addr) >> BWIN_SIZE_BITS) & \
+		   IIO_ITTE_OFFSET_MASK) << IIO_ITTE_OFFSET_SHIFT) | \
+		(io_or_mem << IIO_ITTE_IOSP_SHIFT) | \
+		(((widget) & IIO_ITTE_WIDGET_MASK) << IIO_ITTE_WIDGET_SHIFT)))
+
+#define IIO_ITTE_DISABLE(nasid, bigwin) \
+	IIO_ITTE_PUT((nasid), HUB_PIO_MAP_TO_MEM, \
+		     (bigwin), IIO_ITTE_INVALID_WIDGET, 0)
+
+#define IIO_ITTE_GET(nasid, bigwin) REMOTE_HUB_ADDR((nasid), IIO_ITTE(bigwin))
+
+/*
+ * Macro which takes the widget number, and returns the 
+ * IO PRB address of that widget.
+ * value _x is expected to be a widget number in the range 
+ * 0, 8 - 0xF
+ */
+#define	IIO_IOPRB(_x)	(IIO_IOPRB_0 + ( ( (_x) < HUB_WIDGET_ID_MIN ? \
+			(_x) : \
+			(_x) - (HUB_WIDGET_ID_MIN-1)) << 3) )
+
+#if defined (CONFIG_SGI_IP27)
+#include <asm/sn/sn0/hubio.h>
+#endif
+
+#endif	/* CONFIG_SGI_IO */
 
 #endif /* _ASM_SN_IO_H */