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- /* Copyright (C) 1994 Free Software Foundation, Inc.
- Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
- On-Line Applications Research Corporation.
-
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, 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 sould 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 */
-