1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. 7 * Copyright (C) 2000 Ralf Baechle 8 */ 9 #ifndef _ASM_IA64_SN_IO_H 10 #define _ASM_IA64_SN_IO_H 11 12 #include <linux/config.h> 13 14 #include <asm/sn/addrs.h> 15 16 extern int numionodes; 17 18 /* Because we only have PCI I/O ports. */ 19 #define IIO_ITTE_BASE 0x400160 /* base of translation table entries */ 20 #define IIO_ITTE(bigwin) (IIO_ITTE_BASE + 8*(bigwin)) 21 22 #define IIO_ITTE_OFFSET_BITS 5 /* size of offset field */ 23 #define IIO_ITTE_OFFSET_MASK ((1<<IIO_ITTE_OFFSET_BITS)-1) 24 #define IIO_ITTE_OFFSET_SHIFT 0 25 26 #define IIO_ITTE_WIDGET_BITS 4 /* size of widget field */ 27 #define IIO_ITTE_WIDGET_MASK ((1<<IIO_ITTE_WIDGET_BITS)-1) 28 #define IIO_ITTE_WIDGET_SHIFT 8 29 30 #define IIO_ITTE_IOSP 1 /* I/O Space bit */ 31 #define IIO_ITTE_IOSP_MASK 1 32 #define IIO_ITTE_IOSP_SHIFT 12 33 #define HUB_PIO_MAP_TO_MEM 0 34 #define HUB_PIO_MAP_TO_IO 1 35 36 #define IIO_ITTE_INVALID_WIDGET 3 /* an invalid widget */ 37 38 #define IIO_ITTE_PUT(nasid, bigwin, io_or_mem, widget, addr) \ 39 REMOTE_HUB_S((nasid), IIO_ITTE(bigwin), \ 40 (((((addr) >> BWIN_SIZE_BITS) & \ 41 IIO_ITTE_OFFSET_MASK) << IIO_ITTE_OFFSET_SHIFT) | \ 42 (io_or_mem << IIO_ITTE_IOSP_SHIFT) | \ 43 (((widget) & IIO_ITTE_WIDGET_MASK) << IIO_ITTE_WIDGET_SHIFT))) 44 45 #define IIO_ITTE_DISABLE(nasid, bigwin) \ 46 IIO_ITTE_PUT((nasid), HUB_PIO_MAP_TO_MEM, \ 47 (bigwin), IIO_ITTE_INVALID_WIDGET, 0) 48 49 #define IIO_ITTE_GET(nasid, bigwin) REMOTE_HUB_ADDR((nasid), IIO_ITTE(bigwin)) 50 51 /* 52 * Macro which takes the widget number, and returns the 53 * IO PRB address of that widget. 54 * value _x is expected to be a widget number in the range 55 * 0, 8 - 0xF 56 */ 57 #define IIO_IOPRB(_x) (IIO_IOPRB_0 + ( ( (_x) < HUB_WIDGET_ID_MIN ? \ 58 (_x) : \ 59 (_x) - (HUB_WIDGET_ID_MIN-1)) << 3) ) 60 61 #include <asm/sn/sn2/shub.h> 62 #include <asm/sn/sn2/shubio.h> 63 64 /* 65 * Used to ensure write ordering (like mb(), but for I/O space) 66 */ 67 extern void sn_mmiob(void); 68 69 #endif /* _ASM_IA64_SN_IO_H */ 70