/* * Copyright (C) 2001 Broadcom Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. */#ifndef BCM1250_TBPROF_H#if SBPROF_TB_DEBUG#define DBG(a) a#else#define DBG(a)#endif#define SBPROF_TB_MAJOR 240typedef u_int64_t tb_sample_t[6*256];struct sbprof_tb {	tb_sample_t *sbprof_tbbuf;	int          next_tb_sample;	volatile int tb_enable;	volatile int tb_armed;	wait_queue_head_t tb_sync;};#define MAX_SAMPLE_BYTES (24*1024*1024)#define MAX_TBSAMPLE_BYTES (12*1024*1024)#define MAX_SAMPLES (MAX_SAMPLE_BYTES/sizeof(u_int32_t))#define TB_SAMPLE_SIZE (sizeof(tb_sample_t))#define MAX_TB_SAMPLES (MAX_TBSAMPLE_BYTES/TB_SAMPLE_SIZE)/*************************************************************************** * Routines for gathering ZBbus profiles using trace buffer ***************************************************************************//* Requires: Already called zclk_timer_init with a value that won't	     saturate 40 bits.  No subsequent use of SCD performance counters	     or trace buffer.   Effect:   Starts gathering random ZBbus profiles using trace buffer. */static int sbprof_zbprof_start(struct file *filp);/* Effect: Stops collection of ZBbus profiles */static int sbprof_zbprof_stop(void);/*************************************************************************** * Routines for using 40-bit SCD cycle counter * * Client responsible for either handling interrupts or making sure * the cycles counter never saturates, e.g., by doing * zclk_timer_init(0) at least every 2^40 - 1 ZCLKs. ***************************************************************************//* Configures SCD counter 0 to count ZCLKs starting from val;   Configures SCD counters1,2,3 to count nothing.   Must not be called while gathering ZBbus profiles.unsigned long long val; */#define zclk_timer_init(val) \  __asm__ __volatile__ (".set push;" \			".set mips64;" \			"la   $8, 0xb00204c0;" /* SCD perf_cnt_cfg */ \			"sd   %0, 0x10($8);"   /* write val to counter0 */ \			"sd   %1, 0($8);"      /* config counter0 for zclks*/ \			".set pop" \			: /* no outputs */ \						     /* enable, counter0 */ \			: /* inputs */ "r"(val), "r" ((1ULL << 33) | 1ULL) \			: /* modifies */ "$8" )/* Reads SCD counter 0 and puts result in value   unsigned long long val; */#define zclk_get(val) \  __asm__ __volatile__ (".set push;" \			".set mips64;" \			"la   $8, 0xb00204c0;" /* SCD perf_cnt_cfg */ \			"ld   %0, 0x10($8);"   /* write val to counter0 */ \			".set pop" \			: /* outputs */ "=r"(val) \			: /* inputs */ \			: /* modifies */ "$8" )#endif