bcm1250_tbprof.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:3k
源码类别:
Linux/Unix编程
开发平台:
Unix_Linux
- /*
- * 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 240
- typedef 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