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/**
* @file op_model_v6.c
* ARM11 Performance Monitor Driver
*
* Based on op_model_xscale.c
*
* @remark Copyright 2000-2004 Deepak Saxena <dsaxena@mvista.com>
* @remark Copyright 2000-2004 MontaVista Software Inc
* @remark Copyright 2004 Dave Jiang <dave.jiang@intel.com>
* @remark Copyright 2004 Intel Corporation
* @remark Copyright 2004 Zwane Mwaikambo <zwane@arm.linux.org.uk>
* @remark Copyright 2004 OProfile Authors
*
* @remark Read the file COPYING
*
* @author Tony Lindgren <tony@atomide.com>
*/
/* #define DEBUG */
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/sched.h>
#include <linux/oprofile.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/pmu.h>
#include "op_counter.h"
#include "op_arm_model.h"
#include "op_model_arm11_core.h"
static const struct pmu_irqs *pmu_irqs;
static void armv6_pmu_stop(void)
{
arm11_stop_pmu();
arm11_release_interrupts(pmu_irqs->irqs, pmu_irqs->num_irqs);
release_pmu(pmu_irqs);
pmu_irqs = NULL;
}
static int armv6_pmu_start(void)
{
int ret;
pmu_irqs = reserve_pmu();
if (IS_ERR(pmu_irqs)) {
ret = PTR_ERR(pmu_irqs);
goto out;
}
ret = arm11_request_interrupts(pmu_irqs->irqs, pmu_irqs->num_irqs);
if (ret >= 0) {
ret = arm11_start_pmu();
} else {
release_pmu(pmu_irqs);
pmu_irqs = NULL;
}
out:
return ret;
}
static int armv6_detect_pmu(void)
{
return 0;
}
struct op_arm_model_spec op_armv6_spec = {
.init = armv6_detect_pmu,
.num_counters = 3,
.setup_ctrs = arm11_setup_pmu,
.start = armv6_pmu_start,
.stop = armv6_pmu_stop,
.name = "arm/armv6",
};
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