/* Copyright (C) 1994, 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil), On-Line Applications Research Corporation. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ /* i960ca.h * * This file contains macros which are used to access i80960CA * registers which are not addressable by C. The functions * in this file should be useful to the developer of target * specific code. */ #ifndef i960ca_h__ #define i960ca_h__ typedef unsigned char unsigned8; typedef unsigned short unsigned16; typedef unsigned int unsigned32; /* * Intel i80960CA Processor Control Block */ struct i80960ca_prcb { unsigned32 *fault_tbl; /* fault table base address */ struct i80960ca_ctltbl *control_tbl; /* control table base address */ unsigned32 initial_ac; /* AC register initial value */ unsigned32 fault_config; /* fault configuration word */ void *intr_tbl; /* interrupt table base address */ void *sys_proc_tbl; /* system procedure table */ /* base address */ unsigned32 reserved; /* reserved */ unsigned32 *intr_stack; /* interrupt stack pointer */ unsigned32 ins_cache_cfg; /* instruction cache */ /* configuration word */ unsigned32 reg_cache_cfg; /* register cache */ /* configuration word */ }; /* * Intel i80960CA Control Table */ struct i80960ca_ctltbl { /* Control Group 0 */ unsigned32 ipb0; /* IP breakpoint 0 */ unsigned32 ipb1; /* IP breakpoint 1 */ unsigned32 dab0; /* data address breakpoint 0 */ unsigned32 dab1; /* data address breakpoint 1 */ /* Control Group 1 */ unsigned32 imap0; /* interrupt map 0 */ unsigned32 imap1; /* interrupt map 1 */ unsigned32 imap2; /* interrupt map 2 */ unsigned32 icon; /* interrupt control */ /* Control Group 2 */ unsigned32 mcon0; /* memory region 0 configuration */ unsigned32 mcon1; /* memory region 1 configuration */ unsigned32 mcon2; /* memory region 2 configuration */ unsigned32 mcon3; /* memory region 3 configuration */ /* Control Group 3 */ unsigned32 mcon4; /* memory region 4 configuration */ unsigned32 mcon5; /* memory region 5 configuration */ unsigned32 mcon6; /* memory region 6 configuration */ unsigned32 mcon7; /* memory region 7 configuration */ /* Control Group 4 */ unsigned32 mcon8; /* memory region 8 configuration */ unsigned32 mcon9; /* memory region 9 configuration */ unsigned32 mcon10; /* memory region 10 configuration */ unsigned32 mcon11; /* memory region 11 configuration */ /* Control Group 5 */ unsigned32 mcon12; /* memory region 12 configuration */ unsigned32 mcon13; /* memory region 13 configuration */ unsigned32 mcon14; /* memory region 14 configuration */ unsigned32 mcon15; /* memory region 15 configuration */ /* Control Group 6 */ unsigned32 bpcon; /* breakpoint control */ unsigned32 tc; /* trace control */ unsigned32 bcon; /* bus configuration control */ unsigned32 reserved; /* reserved */ }; #define disable_intr( oldlevel ) \ { (oldlevel) = 0x1f0000; \ asm volatile ( "modpc 0,%1,%1" \ : "=d" ((oldlevel)) \ : "0" ((oldlevel)) ); \ } #define enable_intr( oldlevel ) \ { unsigned32 _mask = 0x1f0000; \ asm volatile ( "modpc 0,%0,%1" \ : "=d" (_mask), "=d" ((oldlevel)) \ : "0" (_mask), "1" ((oldlevel)) ); \ } #define flash_intr( oldlevel ) \ { unsigned32 _mask = 0x1f0000; \ asm volatile ( "modpc 0,%0,%1 ; \ mov %0,%1 ; \ modpc 0,%0,%1" \ : "=d" (_mask), "=d" ((oldlevel)) \ : "0" (_mask), "1" ((oldlevel)) ); \ } #define atomic_modify( mask, addr, prev ) \ { register unsigned32 _mask = (mask); \ register unsigned32 *_addr = (unsigned32 *)(addr); \ asm volatile( "atmod %0,%1,%1" \ : "=d" (_addr), "=d" (_mask) \ : "0" (_addr), "1" (_mask) ); \ (prev) = _mask; \ } #define delay( microseconds ) \ { register unsigned32 _delay=(microseconds); \ register unsigned32 _tmp; \ asm volatile( "delay0: \ remo 3,31,%0 ; \ cmpo 0,%0 ; \ subo 1,%1,%1 ; \ cmpobne.t 0,%1,delay0 " \ : "=d" (_tmp), "=d" (_delay) \ : "0" (_tmp), "1" (_delay) ); \ } #define enable_tracing() \ { register unsigned32 _pc = 0x1; \ asm volatile( "modpc 0,%0,%0" : "=d" (_pc) : "0" (_pc) ); \ } #define unmask_intr( xint ) \ { register unsigned32 _mask= (1<<(xint)); \ asm volatile( "or sf1,%0,sf1" : "=d" (_mask) : "0" (_mask) ); \ } #define mask_intr( xint ) \ { register unsigned32 _mask= (1<<(xint)); \ asm volatile( "andnot %0,sf1,sf1" : "=d" (_mask) : "0" (_mask) ); \ } #define clear_intr( xint ) \ { register unsigned32 _xint=(xint); \ asm volatile( "loop_til_cleared:" \ " clrbit %0,sf0,sf0 ;" \ " bbs %0,sf0,loop_til_cleared" \ : "=d" (_xint) : "0" (_xint) ); \ } #define reload_ctl_group( group ) \ { register int _cmd = ((group)|0x400) ; \ asm volatile( "sysctl %0,%0,%0" : "=d" (_cmd) : "0" (_cmd) ); \ } #define cause_intr( intr ) \ { register int _intr = (intr); \ asm volatile( "sysctl %0,%0,%0" : "=d" (_intr) : "0" (_intr) ); \ } #define soft_reset( prcb ) \ { register struct i80960ca_prcb *_prcb = (prcb); \ register unsigned32 *_next=0; \ register unsigned32 _cmd = 0x30000; \ asm volatile( "lda next,%1; \ sysctl %0,%1,%2; \ next: mov g0,g0" \ : "=d" (_cmd), "=d" (_next), "=d" (_prcb) \ : "0" (_cmd), "1" (_next), "2" (_prcb) ); \ } static inline unsigned32 pend_intrs() { register unsigned32 _intr=0; asm volatile( "mov sf0,%0" : "=d" (_intr) : "0" (_intr) ); return ( _intr ); } static inline unsigned32 mask_intrs() { register unsigned32 _intr=0; asm volatile( "mov sf1,%0" : "=d" (_intr) : "0" (_intr) ); return( _intr ); } static inline unsigned32 get_fp() { register unsigned32 _fp=0; asm volatile( "mov fp,%0" : "=d" (_fp) : "0" (_fp) ); return ( _fp ); } #endif /* end of include file */