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/* * 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) 2000, 2003 Ralf Baechle * Copyright (C) 2000 Silicon Graphics, Inc. */ #ifndef _ASM_SN_IO_H #define _ASM_SN_IO_H #if defined(CONFIG_SGI_IP27) #include <asm/sn/sn0/hubio.h> #endif #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) ) #endif /* _ASM_SN_IO_H */