LXR linux/arch/arm/oprofile/op_model

   1/**
   2 * @file op_model_v6.c
   3 * ARM11 Performance Monitor Driver
   4 *
   5 * Based on op_model_xscale.c
   6 *
   7 * @remark Copyright 2000-2004 Deepak Saxena <dsaxena@mvista.com>
   8 * @remark Copyright 2000-2004 MontaVista Software Inc
   9 * @remark Copyright 2004 Dave Jiang <dave.jiang@intel.com>
  10 * @remark Copyright 2004 Intel Corporation
  11 * @remark Copyright 2004 Zwane Mwaikambo <zwane@arm.linux.org.uk>
  12 * @remark Copyright 2004 OProfile Authors
  13 *
  14 * @remark Read the file COPYING
  15 *
  16 * @author Tony Lindgren <tony@atomide.com>
  17 */
  18
  19/* #define DEBUG */
  20#include <linux/types.h>
  21#include <linux/errno.h>
  22#include <linux/sched.h>
  23#include <linux/oprofile.h>
  24#include <linux/interrupt.h>
  25#include <asm/irq.h>
  26#include <asm/system.h>
  27
  28#include "op_counter.h"
  29#include "op_arm_model.h"
  30#include "op_model_arm11_core.h"
  31
  32static int irqs[] = {
  33#ifdef CONFIG_ARCH_OMAP2
  34        3,
  35#endif
  36};
  37
  38static void armv6_pmu_stop(void)
  39{
  40        arm11_stop_pmu();
  41        arm11_release_interrupts(irqs, ARRAY_SIZE(irqs));
  42}
  43
  44static int armv6_pmu_start(void)
  45{
  46        int ret;
  47
  48        ret = arm11_request_interrupts(irqs, ARRAY_SIZE(irqs));
  49        if (ret >= 0)
  50                ret = arm11_start_pmu();
  51
  52        return ret;
  53}
  54
  55static int armv6_detect_pmu(void)
  56{
  57        return 0;
  58}
  59
  60struct op_arm_model_spec op_armv6_spec = {
  61        .init           = armv6_detect_pmu,
  62        .num_counters   = 3,
  63        .setup_ctrs     = arm11_setup_pmu,
  64        .start          = armv6_pmu_start,
  65        .stop           = armv6_pmu_stop,
  66        .name           = "arm/armv6",
  67};
  68