openwrt-xburst/target/linux/brcm-2.4/files/arch/mips/bcm947xx/include/hndmips.h

/*
 * HND SiliconBackplane MIPS core software interface.
 *
 * Copyright 2007, Broadcom Corporation
 * All Rights Reserved.
 * 
 * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
 * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
 * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
 *
 */

#ifndef _hndmips_h_
#define _hndmips_h_

extern void sb_mips_init(sb_t *sbh, uint shirq_map_base);
extern bool sb_mips_setclock(sb_t *sbh, uint32 mipsclock, uint32 sbclock, uint32 pciclock);
extern void enable_pfc(uint32 mode);
extern uint32 sb_memc_get_ncdl(sb_t *sbh);

#if defined(BCMPERFSTATS)
/* enable counting - exclusive version. Only one set of counters allowed at a time */
extern void hndmips_perf_cyclecount_enable(void);
extern void hndmips_perf_instrcount_enable(void);
extern void hndmips_perf_icachecount_enable(void);
extern void hndmips_perf_dcachecount_enable(void);
/* start and stop counting */
#define hndmips_perf_start01() \
	MTC0(C0_PERFORMANCE, 4, MFC0(C0_PERFORMANCE, 4) | 0x80008000)
#define hndmips_perf_stop01() \
	MTC0(C0_PERFORMANCE, 4, MFC0(C0_PERFORMANCE, 4) & ~0x80008000)
/* retrieve coutners - counters *decrement* */
#define hndmips_perf_read0() -(long)(MFC0(C0_PERFORMANCE, 0))
#define hndmips_perf_read1() -(long)(MFC0(C0_PERFORMANCE, 1))
#define hndmips_perf_read2() -(long)(MFC0(C0_PERFORMANCE, 2))
/* enable counting - modular version. Each counters can be enabled separately. */
extern void hndmips_perf_icache_hit_enable(void);
extern void hndmips_perf_icache_miss_enable(void);
extern uint32 hndmips_perf_read_instrcount(void);
extern uint32 hndmips_perf_read_cache_miss(void);
extern uint32 hndmips_perf_read_cache_hit(void);
#endif 

#endif /* _hndmips_h_ */