ARM: 6073/1: oprofile: remove old files and update KConfig
authorWill Deacon <will.deacon@arm.com>
Fri, 30 Apr 2010 10:37:51 +0000 (11:37 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Mon, 17 May 2010 10:53:58 +0000 (11:53 +0100)
Enable hardware perf-events if CPU_HAS_PMU and select
HAVE_OPROFILE if HAVE_PERF_EVENTS. If no hardware support
is present, OProfile will fall back to timer mode.

This patch also removes the old OProfile drivers in favour
of the code implemented by perf.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 files changed:
arch/arm/Kconfig
arch/arm/oprofile/Makefile
arch/arm/oprofile/backtrace.c [deleted file]
arch/arm/oprofile/op_arm_model.h [deleted file]
arch/arm/oprofile/op_counter.h [deleted file]
arch/arm/oprofile/op_model_arm11_core.c [deleted file]
arch/arm/oprofile/op_model_arm11_core.h [deleted file]
arch/arm/oprofile/op_model_mpcore.c [deleted file]
arch/arm/oprofile/op_model_mpcore.h [deleted file]
arch/arm/oprofile/op_model_v6.c [deleted file]
arch/arm/oprofile/op_model_v7.c [deleted file]
arch/arm/oprofile/op_model_v7.h [deleted file]
arch/arm/oprofile/op_model_xscale.c [deleted file]

index daaa4b2..f7c2a88 100644 (file)
@@ -13,7 +13,7 @@ config ARM
        select RTC_LIB
        select SYS_SUPPORTS_APM_EMULATION
        select GENERIC_ATOMIC64 if (!CPU_32v6K)
-       select HAVE_OPROFILE
+       select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
        select HAVE_ARCH_KGDB
        select HAVE_KPROBES if (!XIP_KERNEL)
        select HAVE_KRETPROBES if (HAVE_KPROBES)
@@ -181,28 +181,6 @@ config ARM_L1_CACHE_SHIFT_6
        help
          Setting ARM L1 cache line size to 64 Bytes.
 
-if OPROFILE
-
-config OPROFILE_ARMV6
-       def_bool y
-       depends on CPU_V6 && !SMP
-       select OPROFILE_ARM11_CORE
-
-config OPROFILE_MPCORE
-       def_bool y
-       depends on CPU_V6 && SMP
-       select OPROFILE_ARM11_CORE
-
-config OPROFILE_ARM11_CORE
-       bool
-
-config OPROFILE_ARMV7
-       def_bool y
-       depends on CPU_V7 && !SMP
-       bool
-
-endif
-
 config VECTORS_BASE
        hex
        default 0xffff0000 if MMU || CPU_HIGH_VECTOR
@@ -1334,7 +1312,7 @@ config HIGHPTE
 
 config HW_PERF_EVENTS
        bool "Enable hardware performance counter support for perf events"
-       depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
+       depends on PERF_EVENTS && CPU_HAS_PMU
        default y
        help
          Enable hardware performance counter support for perf events. If
index 88e31f5..e666eaf 100644 (file)
@@ -6,9 +6,4 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
                oprofilefs.o oprofile_stats.o \
                timer_int.o )
 
-oprofile-y                             := $(DRIVER_OBJS) common.o backtrace.o
-oprofile-$(CONFIG_CPU_XSCALE)          += op_model_xscale.o
-oprofile-$(CONFIG_OPROFILE_ARM11_CORE) += op_model_arm11_core.o
-oprofile-$(CONFIG_OPROFILE_ARMV6)      += op_model_v6.o
-oprofile-$(CONFIG_OPROFILE_MPCORE)     += op_model_mpcore.o
-oprofile-$(CONFIG_OPROFILE_ARMV7)      += op_model_v7.o
+oprofile-y                             := $(DRIVER_OBJS) common.o
diff --git a/arch/arm/oprofile/backtrace.c b/arch/arm/oprofile/backtrace.c
deleted file mode 100644 (file)
index d805a52..0000000
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Arm specific backtracing code for oprofile
- *
- * Copyright 2005 Openedhand Ltd.
- *
- * Author: Richard Purdie <rpurdie@openedhand.com>
- *
- * Based on i386 oprofile backtrace code by John Levon, David Smith
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/oprofile.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/uaccess.h>
-#include <asm/ptrace.h>
-#include <asm/stacktrace.h>
-
-static int report_trace(struct stackframe *frame, void *d)
-{
-       unsigned int *depth = d;
-
-       if (*depth) {
-               oprofile_add_trace(frame->pc);
-               (*depth)--;
-       }
-
-       return *depth == 0;
-}
-
-/*
- * The registers we're interested in are at the end of the variable
- * length saved register structure. The fp points at the end of this
- * structure so the address of this struct is:
- * (struct frame_tail *)(xxx->fp)-1
- */
-struct frame_tail {
-       struct frame_tail *fp;
-       unsigned long sp;
-       unsigned long lr;
-} __attribute__((packed));
-
-static struct frame_tail* user_backtrace(struct frame_tail *tail)
-{
-       struct frame_tail buftail[2];
-
-       /* Also check accessibility of one struct frame_tail beyond */
-       if (!access_ok(VERIFY_READ, tail, sizeof(buftail)))
-               return NULL;
-       if (__copy_from_user_inatomic(buftail, tail, sizeof(buftail)))
-               return NULL;
-
-       oprofile_add_trace(buftail[0].lr);
-
-       /* frame pointers should strictly progress back up the stack
-        * (towards higher addresses) */
-       if (tail >= buftail[0].fp)
-               return NULL;
-
-       return buftail[0].fp-1;
-}
-
-void arm_backtrace(struct pt_regs * const regs, unsigned int depth)
-{
-       struct frame_tail *tail = ((struct frame_tail *) regs->ARM_fp) - 1;
-
-       if (!user_mode(regs)) {
-               struct stackframe frame;
-               frame.fp = regs->ARM_fp;
-               frame.sp = regs->ARM_sp;
-               frame.lr = regs->ARM_lr;
-               frame.pc = regs->ARM_pc;
-               walk_stackframe(&frame, report_trace, &depth);
-               return;
-       }
-
-       while (depth-- && tail && !((unsigned long) tail & 3))
-               tail = user_backtrace(tail);
-}
diff --git a/arch/arm/oprofile/op_arm_model.h b/arch/arm/oprofile/op_arm_model.h
deleted file mode 100644 (file)
index 8c4e4f6..0000000
+++ /dev/null
@@ -1,35 +0,0 @@
-/**
- * @file op_arm_model.h
- * interface to ARM machine specific operations
- *
- * @remark Copyright 2004 Oprofile Authors
- * @remark Read the file COPYING
- *
- * @author Zwane Mwaikambo
- */
-
-#ifndef OP_ARM_MODEL_H
-#define OP_ARM_MODEL_H
-
-struct op_arm_model_spec {
-       int (*init)(void);
-       unsigned int num_counters;
-       int (*setup_ctrs)(void);
-       int (*start)(void);
-       void (*stop)(void);
-       char *name;
-};
-
-#ifdef CONFIG_CPU_XSCALE
-extern struct op_arm_model_spec op_xscale_spec;
-#endif
-
-extern struct op_arm_model_spec op_armv6_spec;
-extern struct op_arm_model_spec op_mpcore_spec;
-extern struct op_arm_model_spec op_armv7_spec;
-
-extern void arm_backtrace(struct pt_regs * const regs, unsigned int depth);
-
-extern int __init op_arm_init(struct oprofile_operations *ops, struct op_arm_model_spec *spec);
-extern void op_arm_exit(void);
-#endif /* OP_ARM_MODEL_H */
diff --git a/arch/arm/oprofile/op_counter.h b/arch/arm/oprofile/op_counter.h
deleted file mode 100644 (file)
index ca942a6..0000000
+++ /dev/null
@@ -1,27 +0,0 @@
-/**
- * @file op_counter.h
- *
- * @remark Copyright 2004 Oprofile Authors
- * @remark Read the file COPYING
- *
- * @author Zwane Mwaikambo
- */
-
-#ifndef OP_COUNTER_H
-#define OP_COUNTER_H
-
-/* Per performance monitor configuration as set via
- * oprofilefs.
- */
-struct op_counter_config {
-       unsigned long count;
-       unsigned long enabled;
-       unsigned long event;
-       unsigned long unit_mask;
-       unsigned long kernel;
-       unsigned long user;
-};
-
-extern struct op_counter_config *counter_config;
-
-#endif /* OP_COUNTER_H */
diff --git a/arch/arm/oprofile/op_model_arm11_core.c b/arch/arm/oprofile/op_model_arm11_core.c
deleted file mode 100644 (file)
index ef3e265..0000000
+++ /dev/null
@@ -1,162 +0,0 @@
-/**
- * @file op_model_arm11_core.c
- * ARM11 Event Monitor Driver
- * @remark Copyright 2004 ARM SMP Development Team
- */
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/oprofile.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/smp.h>
-
-#include "op_counter.h"
-#include "op_arm_model.h"
-#include "op_model_arm11_core.h"
-
-/*
- * ARM11 PMU support
- */
-static inline void arm11_write_pmnc(u32 val)
-{
-       /* upper 4bits and 7, 11 are write-as-0 */
-       val &= 0x0ffff77f;
-       asm volatile("mcr p15, 0, %0, c15, c12, 0" : : "r" (val));
-}
-
-static inline u32 arm11_read_pmnc(void)
-{
-       u32 val;
-       asm volatile("mrc p15, 0, %0, c15, c12, 0" : "=r" (val));
-       return val;
-}
-
-static void arm11_reset_counter(unsigned int cnt)
-{
-       u32 val = -(u32)counter_config[CPU_COUNTER(smp_processor_id(), cnt)].count;
-       switch (cnt) {
-       case CCNT:
-               asm volatile("mcr p15, 0, %0, c15, c12, 1" : : "r" (val));
-               break;
-
-       case PMN0:
-               asm volatile("mcr p15, 0, %0, c15, c12, 2" : : "r" (val));
-               break;
-
-       case PMN1:
-               asm volatile("mcr p15, 0, %0, c15, c12, 3" : : "r" (val));
-               break;
-       }
-}
-
-int arm11_setup_pmu(void)
-{
-       unsigned int cnt;
-       u32 pmnc;
-
-       if (arm11_read_pmnc() & PMCR_E) {
-               printk(KERN_ERR "oprofile: CPU%u PMU still enabled when setup new event counter.\n", smp_processor_id());
-               return -EBUSY;
-       }
-
-       /* initialize PMNC, reset overflow, D bit, C bit and P bit. */
-       arm11_write_pmnc(PMCR_OFL_PMN0 | PMCR_OFL_PMN1 | PMCR_OFL_CCNT |
-                        PMCR_C | PMCR_P);
-
-       for (pmnc = 0, cnt = PMN0; cnt <= CCNT; cnt++) {
-               unsigned long event;
-
-               if (!counter_config[CPU_COUNTER(smp_processor_id(), cnt)].enabled)
-                       continue;
-
-               event = counter_config[CPU_COUNTER(smp_processor_id(), cnt)].event & 255;
-
-               /*
-                * Set event (if destined for PMNx counters)
-                */
-               if (cnt == PMN0) {
-                       pmnc |= event << 20;
-               } else if (cnt == PMN1) {
-                       pmnc |= event << 12;
-               }
-
-               /*
-                * We don't need to set the event if it's a cycle count
-                * Enable interrupt for this counter
-                */
-               pmnc |= PMCR_IEN_PMN0 << cnt;
-               arm11_reset_counter(cnt);
-       }
-       arm11_write_pmnc(pmnc);
-
-       return 0;
-}
-
-int arm11_start_pmu(void)
-{
-       arm11_write_pmnc(arm11_read_pmnc() | PMCR_E);
-       return 0;
-}
-
-int arm11_stop_pmu(void)
-{
-       unsigned int cnt;
-
-       arm11_write_pmnc(arm11_read_pmnc() & ~PMCR_E);
-
-       for (cnt = PMN0; cnt <= CCNT; cnt++)
-               arm11_reset_counter(cnt);
-
-       return 0;
-}
-
-/*
- * CPU counters' IRQ handler (one IRQ per CPU)
- */
-static irqreturn_t arm11_pmu_interrupt(int irq, void *arg)
-{
-       struct pt_regs *regs = get_irq_regs();
-       unsigned int cnt;
-       u32 pmnc;
-
-       pmnc = arm11_read_pmnc();
-
-       for (cnt = PMN0; cnt <= CCNT; cnt++) {
-               if ((pmnc & (PMCR_OFL_PMN0 << cnt)) && (pmnc & (PMCR_IEN_PMN0 << cnt))) {
-                       arm11_reset_counter(cnt);
-                       oprofile_add_sample(regs, CPU_COUNTER(smp_processor_id(), cnt));
-               }
-       }
-       /* Clear counter flag(s) */
-       arm11_write_pmnc(pmnc);
-       return IRQ_HANDLED;
-}
-
-int arm11_request_interrupts(const int *irqs, int nr)
-{
-       unsigned int i;
-       int ret = 0;
-
-       for(i = 0; i < nr; i++) {
-               ret = request_irq(irqs[i], arm11_pmu_interrupt, IRQF_DISABLED, "CP15 PMU", NULL);
-               if (ret != 0) {
-                       printk(KERN_ERR "oprofile: unable to request IRQ%u for MPCORE-EM\n",
-                              irqs[i]);
-                       break;
-               }
-       }
-
-       if (i != nr)
-               while (i-- != 0)
-                       free_irq(irqs[i], NULL);
-
-       return ret;
-}
-
-void arm11_release_interrupts(const int *irqs, int nr)
-{
-       unsigned int i;
-
-       for (i = 0; i < nr; i++)
-               free_irq(irqs[i], NULL);
-}
diff --git a/arch/arm/oprofile/op_model_arm11_core.h b/arch/arm/oprofile/op_model_arm11_core.h
deleted file mode 100644 (file)
index 1902b99..0000000
+++ /dev/null
@@ -1,45 +0,0 @@
-/**
- * @file op_model_arm11_core.h
- * ARM11 Event Monitor Driver
- * @remark Copyright 2004 ARM SMP Development Team
- * @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 Zwane Mwaikambo
- */
-#ifndef OP_MODEL_ARM11_CORE_H
-#define OP_MODEL_ARM11_CORE_H
-
-/*
- * Per-CPU PMCR
- */
-#define PMCR_E         (1 << 0)        /* Enable */
-#define PMCR_P         (1 << 1)        /* Count reset */
-#define PMCR_C         (1 << 2)        /* Cycle counter reset */
-#define PMCR_D         (1 << 3)        /* Cycle counter counts every 64th cpu cycle */
-#define PMCR_IEN_PMN0  (1 << 4)        /* Interrupt enable count reg 0 */
-#define PMCR_IEN_PMN1  (1 << 5)        /* Interrupt enable count reg 1 */
-#define PMCR_IEN_CCNT  (1 << 6)        /* Interrupt enable cycle counter */
-#define PMCR_OFL_PMN0  (1 << 8)        /* Count reg 0 overflow */
-#define PMCR_OFL_PMN1  (1 << 9)        /* Count reg 1 overflow */
-#define PMCR_OFL_CCNT  (1 << 10)       /* Cycle counter overflow */
-
-#define PMN0 0
-#define PMN1 1
-#define CCNT 2
-
-#define CPU_COUNTER(cpu, counter)      ((cpu) * 3 + (counter))
-
-int arm11_setup_pmu(void);
-int arm11_start_pmu(void);
-int arm11_stop_pmu(void);
-int arm11_request_interrupts(const int *, int);
-void arm11_release_interrupts(const int *, int);
-
-#endif
diff --git a/arch/arm/oprofile/op_model_mpcore.c b/arch/arm/oprofile/op_model_mpcore.c
deleted file mode 100644 (file)
index f73ce87..0000000
+++ /dev/null
@@ -1,306 +0,0 @@
-/**
- * @file op_model_mpcore.c
- * MPCORE Event Monitor Driver
- * @remark Copyright 2004 ARM SMP Development Team
- * @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 Zwane Mwaikambo
- *
- *  Counters:
- *    0: PMN0 on CPU0, per-cpu configurable event counter
- *    1: PMN1 on CPU0, per-cpu configurable event counter
- *    2: CCNT on CPU0
- *    3: PMN0 on CPU1
- *    4: PMN1 on CPU1
- *    5: CCNT on CPU1
- *    6: PMN0 on CPU1
- *    7: PMN1 on CPU1
- *    8: CCNT on CPU1
- *    9: PMN0 on CPU1
- *   10: PMN1 on CPU1
- *   11: CCNT on CPU1
- *   12-19: configurable SCU event counters
- */
-
-/* #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 <linux/smp.h>
-#include <linux/io.h>
-
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
-#include <mach/hardware.h>
-#include <mach/board-eb.h>
-#include <asm/system.h>
-#include <asm/pmu.h>
-
-#include "op_counter.h"
-#include "op_arm_model.h"
-#include "op_model_arm11_core.h"
-#include "op_model_mpcore.h"
-
-/*
- * MPCore SCU event monitor support
- */
-#define SCU_EVENTMONITORS_VA_BASE __io_address(REALVIEW_EB11MP_SCU_BASE + 0x10)
-
-/*
- * Bitmask of used SCU counters
- */
-static unsigned int scu_em_used;
-static const struct pmu_irqs *pmu_irqs;
-
-/*
- * 2 helper fns take a counter number from 0-7 (not the userspace-visible counter number)
- */
-static inline void scu_reset_counter(struct eventmonitor __iomem *emc, unsigned int n)
-{
-       writel(-(u32)counter_config[SCU_COUNTER(n)].count, &emc->MC[n]);
-}
-
-static inline void scu_set_event(struct eventmonitor __iomem *emc, unsigned int n, u32 event)
-{
-       event &= 0xff;
-       writeb(event, &emc->MCEB[n]);
-}
-
-/*
- * SCU counters' IRQ handler (one IRQ per counter => 2 IRQs per CPU)
- */
-static irqreturn_t scu_em_interrupt(int irq, void *arg)
-{
-       struct eventmonitor __iomem *emc = SCU_EVENTMONITORS_VA_BASE;
-       unsigned int cnt;
-
-       cnt = irq - IRQ_EB11MP_PMU_SCU0;
-       oprofile_add_sample(get_irq_regs(), SCU_COUNTER(cnt));
-       scu_reset_counter(emc, cnt);
-
-       /* Clear overflow flag for this counter */
-       writel(1 << (cnt + 16), &emc->PMCR);
-
-       return IRQ_HANDLED;
-}
-
-/* Configure just the SCU counters that the user has requested */
-static void scu_setup(void)
-{
-       struct eventmonitor __iomem *emc = SCU_EVENTMONITORS_VA_BASE;
-       unsigned int i;
-
-       scu_em_used = 0;
-
-       for (i = 0; i < NUM_SCU_COUNTERS; i++) {
-               if (counter_config[SCU_COUNTER(i)].enabled &&
-                   counter_config[SCU_COUNTER(i)].event) {
-                       scu_set_event(emc, i, 0); /* disable counter for now */
-                       scu_em_used |= 1 << i;
-               }
-       }
-}
-
-static int scu_start(void)
-{
-       struct eventmonitor __iomem *emc = SCU_EVENTMONITORS_VA_BASE;
-       unsigned int temp, i;
-       unsigned long event;
-       int ret = 0;
-
-       /*
-        * request the SCU counter interrupts that we need
-        */
-       for (i = 0; i < NUM_SCU_COUNTERS; i++) {
-               if (scu_em_used & (1 << i)) {
-                       ret = request_irq(IRQ_EB11MP_PMU_SCU0 + i, scu_em_interrupt, IRQF_DISABLED, "SCU PMU", NULL);
-                       if (ret) {
-                               printk(KERN_ERR "oprofile: unable to request IRQ%u for SCU Event Monitor\n",
-                                      IRQ_EB11MP_PMU_SCU0 + i);
-                               goto err_free_scu;
-                       }
-               }
-       }
-
-       /*
-        * clear overflow and enable interrupt for all used counters
-        */
-       temp = readl(&emc->PMCR);
-       for (i = 0; i < NUM_SCU_COUNTERS; i++) {
-               if (scu_em_used & (1 << i)) {
-                       scu_reset_counter(emc, i);
-                       event = counter_config[SCU_COUNTER(i)].event;
-                       scu_set_event(emc, i, event);
-
-                       /* clear overflow/interrupt */
-                       temp |= 1 << (i + 16);
-                       /* enable interrupt*/
-                       temp |= 1 << (i + 8);
-               }
-       }
-
-       /* Enable all 8 counters */
-       temp |= PMCR_E;
-       writel(temp, &emc->PMCR);
-
-       return 0;
-
- err_free_scu:
-       while (i--)
-               free_irq(IRQ_EB11MP_PMU_SCU0 + i, NULL);
-       return ret;
-}
-
-static void scu_stop(void)
-{
-       struct eventmonitor __iomem *emc = SCU_EVENTMONITORS_VA_BASE;
-       unsigned int temp, i;
-
-       /* Disable counter interrupts */
-       /* Don't disable all 8 counters (with the E bit) as they may be in use */
-       temp = readl(&emc->PMCR);
-       for (i = 0; i < NUM_SCU_COUNTERS; i++) {
-               if (scu_em_used & (1 << i))
-                       temp &= ~(1 << (i + 8));
-       }
-       writel(temp, &emc->PMCR);
-
-       /* Free counter interrupts and reset counters */
-       for (i = 0; i < NUM_SCU_COUNTERS; i++) {
-               if (scu_em_used & (1 << i)) {
-                       scu_reset_counter(emc, i);
-                       free_irq(IRQ_EB11MP_PMU_SCU0 + i, NULL);
-               }
-       }
-}
-
-struct em_function_data {
-       int (*fn)(void);
-       int ret;
-};
-
-static void em_func(void *data)
-{
-       struct em_function_data *d = data;
-       int ret = d->fn();
-       if (ret)
-               d->ret = ret;
-}
-
-static int em_call_function(int (*fn)(void))
-{
-       struct em_function_data data;
-
-       data.fn = fn;
-       data.ret = 0;
-
-       preempt_disable();
-       smp_call_function(em_func, &data, 1);
-       em_func(&data);
-       preempt_enable();
-
-       return data.ret;
-}
-
-/*
- * Glue to stick the individual ARM11 PMUs and the SCU
- * into the oprofile framework.
- */
-static int em_setup_ctrs(void)
-{
-       int ret;
-
-       /* Configure CPU counters by cross-calling to the other CPUs */
-       ret = em_call_function(arm11_setup_pmu);
-       if (ret == 0)
-               scu_setup();
-
-       return 0;
-}
-
-static int em_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) {
-               em_call_function(arm11_start_pmu);
-
-               ret = scu_start();
-               if (ret) {
-                       arm11_release_interrupts(pmu_irqs->irqs,
-                                                pmu_irqs->num_irqs);
-               } else {
-                       release_pmu(pmu_irqs);
-                       pmu_irqs = NULL;
-               }
-       }
-
-out:
-       return ret;
-}
-
-static void em_stop(void)
-{
-       em_call_function(arm11_stop_pmu);
-       arm11_release_interrupts(pmu_irqs->irqs, pmu_irqs->num_irqs);
-       scu_stop();
-       release_pmu(pmu_irqs);
-}
-
-/*
- * Why isn't there a function to route an IRQ to a specific CPU in
- * genirq?
- */
-static void em_route_irq(int irq, unsigned int cpu)
-{
-       struct irq_desc *desc = irq_desc + irq;
-       const struct cpumask *mask = cpumask_of(cpu);
-
-       spin_lock_irq(&desc->lock);
-       cpumask_copy(desc->affinity, mask);
-       desc->chip->set_affinity(irq, mask);
-       spin_unlock_irq(&desc->lock);
-}
-
-static int em_setup(void)
-{
-       /*
-        * Send SCU PMU interrupts to the "owner" CPU.
-        */
-       em_route_irq(IRQ_EB11MP_PMU_SCU0, 0);
-       em_route_irq(IRQ_EB11MP_PMU_SCU1, 0);
-       em_route_irq(IRQ_EB11MP_PMU_SCU2, 1);
-       em_route_irq(IRQ_EB11MP_PMU_SCU3, 1);
-       em_route_irq(IRQ_EB11MP_PMU_SCU4, 2);
-       em_route_irq(IRQ_EB11MP_PMU_SCU5, 2);
-       em_route_irq(IRQ_EB11MP_PMU_SCU6, 3);
-       em_route_irq(IRQ_EB11MP_PMU_SCU7, 3);
-
-       return init_pmu();
-}
-
-struct op_arm_model_spec op_mpcore_spec = {
-       .init           = em_setup,
-       .num_counters   = MPCORE_NUM_COUNTERS,
-       .setup_ctrs     = em_setup_ctrs,
-       .start          = em_start,
-       .stop           = em_stop,
-       .name           = "arm/mpcore",
-};
diff --git a/arch/arm/oprofile/op_model_mpcore.h b/arch/arm/oprofile/op_model_mpcore.h
deleted file mode 100644 (file)
index 73d8110..0000000
+++ /dev/null
@@ -1,61 +0,0 @@
-/**
- * @file op_model_mpcore.c
- * MPCORE Event Monitor Driver
- * @remark Copyright 2004 ARM SMP Development Team
- * @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 Zwane Mwaikambo
- */
-#ifndef OP_MODEL_MPCORE_H
-#define OP_MODEL_MPCORE_H
-
-struct eventmonitor {
-       unsigned long PMCR;
-       unsigned char MCEB[8];
-       unsigned long MC[8];
-};
-
-/*
- * List of userspace counter numbers: note that the structure is important.
- * The code relies on CPUn's counters being CPU0's counters + 3n
- * and on CPU0's counters starting at 0
- */
-
-#define COUNTER_CPU0_PMN0 0
-#define COUNTER_CPU0_PMN1 1
-#define COUNTER_CPU0_CCNT 2
-
-#define COUNTER_CPU1_PMN0 3
-#define COUNTER_CPU1_PMN1 4
-#define COUNTER_CPU1_CCNT 5
-
-#define COUNTER_CPU2_PMN0 6
-#define COUNTER_CPU2_PMN1 7
-#define COUNTER_CPU2_CCNT 8
-
-#define COUNTER_CPU3_PMN0 9
-#define COUNTER_CPU3_PMN1 10
-#define COUNTER_CPU3_CCNT 11
-
-#define COUNTER_SCU_MN0 12
-#define COUNTER_SCU_MN1 13
-#define COUNTER_SCU_MN2 14
-#define COUNTER_SCU_MN3 15
-#define COUNTER_SCU_MN4 16
-#define COUNTER_SCU_MN5 17
-#define COUNTER_SCU_MN6 18
-#define COUNTER_SCU_MN7 19
-#define NUM_SCU_COUNTERS 8
-
-#define SCU_COUNTER(number)    ((number) + COUNTER_SCU_MN0)
-
-#define MPCORE_NUM_COUNTERS    SCU_COUNTER(NUM_SCU_COUNTERS)
-
-#endif
diff --git a/arch/arm/oprofile/op_model_v6.c b/arch/arm/oprofile/op_model_v6.c
deleted file mode 100644 (file)
index a22357a..0000000
+++ /dev/null
@@ -1,78 +0,0 @@
-/**
- * @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",
-};
diff --git a/arch/arm/oprofile/op_model_v7.c b/arch/arm/oprofile/op_model_v7.c
deleted file mode 100644 (file)
index 8642d08..0000000
+++ /dev/null
@@ -1,415 +0,0 @@
-/**
- * op_model_v7.c
- * ARM V7 (Cortex A8) Event Monitor Driver
- *
- * Copyright 2008 Jean Pihet <jpihet@mvista.com>
- * Copyright 2004 ARM SMP Development Team
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/oprofile.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/smp.h>
-
-#include <asm/pmu.h>
-
-#include "op_counter.h"
-#include "op_arm_model.h"
-#include "op_model_v7.h"
-
-/* #define DEBUG */
-
-
-/*
- * ARM V7 PMNC support
- */
-
-static u32 cnt_en[CNTMAX];
-
-static inline void armv7_pmnc_write(u32 val)
-{
-       val &= PMNC_MASK;
-       asm volatile("mcr p15, 0, %0, c9, c12, 0" : : "r" (val));
-}
-
-static inline u32 armv7_pmnc_read(void)
-{
-       u32 val;
-
-       asm volatile("mrc p15, 0, %0, c9, c12, 0" : "=r" (val));
-       return val;
-}
-
-static inline u32 armv7_pmnc_enable_counter(unsigned int cnt)
-{
-       u32 val;
-
-       if (cnt >= CNTMAX) {
-               printk(KERN_ERR "oprofile: CPU%u enabling wrong PMNC counter"
-                       " %d\n", smp_processor_id(), cnt);
-               return -1;
-       }
-
-       if (cnt == CCNT)
-               val = CNTENS_C;
-       else
-               val = (1 << (cnt - CNT0));
-
-       val &= CNTENS_MASK;
-       asm volatile("mcr p15, 0, %0, c9, c12, 1" : : "r" (val));
-
-       return cnt;
-}
-
-static inline u32 armv7_pmnc_disable_counter(unsigned int cnt)
-{
-       u32 val;
-
-       if (cnt >= CNTMAX) {
-               printk(KERN_ERR "oprofile: CPU%u disabling wrong PMNC counter"
-                       " %d\n", smp_processor_id(), cnt);
-               return -1;
-       }
-
-       if (cnt == CCNT)
-               val = CNTENC_C;
-       else
-               val = (1 << (cnt - CNT0));
-
-       val &= CNTENC_MASK;
-       asm volatile("mcr p15, 0, %0, c9, c12, 2" : : "r" (val));
-
-       return cnt;
-}
-
-static inline u32 armv7_pmnc_enable_intens(unsigned int cnt)
-{
-       u32 val;
-
-       if (cnt >= CNTMAX) {
-               printk(KERN_ERR "oprofile: CPU%u enabling wrong PMNC counter"
-                       " interrupt enable %d\n", smp_processor_id(), cnt);
-               return -1;
-       }
-
-       if (cnt == CCNT)
-               val = INTENS_C;
-       else
-               val = (1 << (cnt - CNT0));
-
-       val &= INTENS_MASK;
-       asm volatile("mcr p15, 0, %0, c9, c14, 1" : : "r" (val));
-
-       return cnt;
-}
-
-static inline u32 armv7_pmnc_getreset_flags(void)
-{
-       u32 val;
-
-       /* Read */
-       asm volatile("mrc p15, 0, %0, c9, c12, 3" : "=r" (val));
-
-       /* Write to clear flags */
-       val &= FLAG_MASK;
-       asm volatile("mcr p15, 0, %0, c9, c12, 3" : : "r" (val));
-
-       return val;
-}
-
-static inline int armv7_pmnc_select_counter(unsigned int cnt)
-{
-       u32 val;
-
-       if ((cnt == CCNT) || (cnt >= CNTMAX)) {
-               printk(KERN_ERR "oprofile: CPU%u selecting wrong PMNC counteri"
-                       " %d\n", smp_processor_id(), cnt);
-               return -1;
-       }
-
-       val = (cnt - CNT0) & SELECT_MASK;
-       asm volatile("mcr p15, 0, %0, c9, c12, 5" : : "r" (val));
-
-       return cnt;
-}
-
-static inline void armv7_pmnc_write_evtsel(unsigned int cnt, u32 val)
-{
-       if (armv7_pmnc_select_counter(cnt) == cnt) {
-               val &= EVTSEL_MASK;
-               asm volatile("mcr p15, 0, %0, c9, c13, 1" : : "r" (val));
-       }
-}
-
-static void armv7_pmnc_reset_counter(unsigned int cnt)
-{
-       u32 cpu_cnt = CPU_COUNTER(smp_processor_id(), cnt);
-       u32 val = -(u32)counter_config[cpu_cnt].count;
-
-       switch (cnt) {
-       case CCNT:
-               armv7_pmnc_disable_counter(cnt);
-
-               asm volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" (val));
-
-               if (cnt_en[cnt] != 0)
-                   armv7_pmnc_enable_counter(cnt);
-
-               break;
-
-       case CNT0:
-       case CNT1:
-       case CNT2:
-       case CNT3:
-               armv7_pmnc_disable_counter(cnt);
-
-               if (armv7_pmnc_select_counter(cnt) == cnt)
-                   asm volatile("mcr p15, 0, %0, c9, c13, 2" : : "r" (val));
-
-               if (cnt_en[cnt] != 0)
-                   armv7_pmnc_enable_counter(cnt);
-
-               break;
-
-       default:
-               printk(KERN_ERR "oprofile: CPU%u resetting wrong PMNC counter"
-                       " %d\n", smp_processor_id(), cnt);
-               break;
-       }
-}
-
-int armv7_setup_pmnc(void)
-{
-       unsigned int cnt;
-
-       if (armv7_pmnc_read() & PMNC_E) {
-               printk(KERN_ERR "oprofile: CPU%u PMNC still enabled when setup"
-                       " new event counter.\n", smp_processor_id());
-               return -EBUSY;
-       }
-
-       /* Initialize & Reset PMNC: C bit and P bit */
-       armv7_pmnc_write(PMNC_P | PMNC_C);
-
-
-       for (cnt = CCNT; cnt < CNTMAX; cnt++) {
-               unsigned long event;
-               u32 cpu_cnt = CPU_COUNTER(smp_processor_id(), cnt);
-
-               /*
-                * Disable counter
-                */
-               armv7_pmnc_disable_counter(cnt);
-               cnt_en[cnt] = 0;
-
-               if (!counter_config[cpu_cnt].enabled)
-                       continue;
-
-               event = counter_config[cpu_cnt].event & 255;
-
-               /*
-                * Set event (if destined for PMNx counters)
-                * We don't need to set the event if it's a cycle count
-                */
-               if (cnt != CCNT)
-                       armv7_pmnc_write_evtsel(cnt, event);
-
-               /*
-                * Enable interrupt for this counter
-                */
-               armv7_pmnc_enable_intens(cnt);
-
-               /*
-                * Reset counter
-                */
-               armv7_pmnc_reset_counter(cnt);
-
-               /*
-                * Enable counter
-                */
-               armv7_pmnc_enable_counter(cnt);
-               cnt_en[cnt] = 1;
-       }
-
-       return 0;
-}
-
-static inline void armv7_start_pmnc(void)
-{
-       armv7_pmnc_write(armv7_pmnc_read() | PMNC_E);
-}
-
-static inline void armv7_stop_pmnc(void)
-{
-       armv7_pmnc_write(armv7_pmnc_read() & ~PMNC_E);
-}
-
-/*
- * CPU counters' IRQ handler (one IRQ per CPU)
- */
-static irqreturn_t armv7_pmnc_interrupt(int irq, void *arg)
-{
-       struct pt_regs *regs = get_irq_regs();
-       unsigned int cnt;
-       u32 flags;
-
-
-       /*
-        * Stop IRQ generation
-        */
-       armv7_stop_pmnc();
-
-       /*
-        * Get and reset overflow status flags
-        */
-       flags = armv7_pmnc_getreset_flags();
-
-       /*
-        * Cycle counter
-        */
-       if (flags & FLAG_C) {
-               u32 cpu_cnt = CPU_COUNTER(smp_processor_id(), CCNT);
-               armv7_pmnc_reset_counter(CCNT);
-               oprofile_add_sample(regs, cpu_cnt);
-       }
-
-       /*
-        * PMNC counters 0:3
-        */
-       for (cnt = CNT0; cnt < CNTMAX; cnt++) {
-               if (flags & (1 << (cnt - CNT0))) {
-                       u32 cpu_cnt = CPU_COUNTER(smp_processor_id(), cnt);
-                       armv7_pmnc_reset_counter(cnt);
-                       oprofile_add_sample(regs, cpu_cnt);
-               }
-       }
-
-       /*
-        * Allow IRQ generation
-        */
-       armv7_start_pmnc();
-
-       return IRQ_HANDLED;
-}
-
-int armv7_request_interrupts(const int *irqs, int nr)
-{
-       unsigned int i;
-       int ret = 0;
-
-       for (i = 0; i < nr; i++) {
-               ret = request_irq(irqs[i], armv7_pmnc_interrupt,
-                               IRQF_DISABLED, "CP15 PMNC", NULL);
-               if (ret != 0) {
-                       printk(KERN_ERR "oprofile: unable to request IRQ%u"
-                               " for ARMv7\n",
-                              irqs[i]);
-                       break;
-               }
-       }
-
-       if (i != nr)
-               while (i-- != 0)
-                       free_irq(irqs[i], NULL);
-
-       return ret;
-}
-
-void armv7_release_interrupts(const int *irqs, int nr)
-{
-       unsigned int i;
-
-       for (i = 0; i < nr; i++)
-               free_irq(irqs[i], NULL);
-}
-
-#ifdef DEBUG
-static void armv7_pmnc_dump_regs(void)
-{
-       u32 val;
-       unsigned int cnt;
-
-       printk(KERN_INFO "PMNC registers dump:\n");
-
-       asm volatile("mrc p15, 0, %0, c9, c12, 0" : "=r" (val));
-       printk(KERN_INFO "PMNC  =0x%08x\n", val);
-
-       asm volatile("mrc p15, 0, %0, c9, c12, 1" : "=r" (val));
-       printk(KERN_INFO "CNTENS=0x%08x\n", val);
-
-       asm volatile("mrc p15, 0, %0, c9, c14, 1" : "=r" (val));
-       printk(KERN_INFO "INTENS=0x%08x\n", val);
-
-       asm volatile("mrc p15, 0, %0, c9, c12, 3" : "=r" (val));
-       printk(KERN_INFO "FLAGS =0x%08x\n", val);
-
-       asm volatile("mrc p15, 0, %0, c9, c12, 5" : "=r" (val));
-       printk(KERN_INFO "SELECT=0x%08x\n", val);
-
-       asm volatile("mrc p15, 0, %0, c9, c13, 0" : "=r" (val));
-       printk(KERN_INFO "CCNT  =0x%08x\n", val);
-
-       for (cnt = CNT0; cnt < CNTMAX; cnt++) {
-               armv7_pmnc_select_counter(cnt);
-               asm volatile("mrc p15, 0, %0, c9, c13, 2" : "=r" (val));
-               printk(KERN_INFO "CNT[%d] count =0x%08x\n", cnt-CNT0, val);
-               asm volatile("mrc p15, 0, %0, c9, c13, 1" : "=r" (val));
-               printk(KERN_INFO "CNT[%d] evtsel=0x%08x\n", cnt-CNT0, val);
-       }
-}
-#endif
-
-static const struct pmu_irqs *pmu_irqs;
-
-static void armv7_pmnc_stop(void)
-{
-#ifdef DEBUG
-       armv7_pmnc_dump_regs();
-#endif
-       armv7_stop_pmnc();
-       armv7_release_interrupts(pmu_irqs->irqs, pmu_irqs->num_irqs);
-       release_pmu(pmu_irqs);
-       pmu_irqs = NULL;
-}
-
-static int armv7_pmnc_start(void)
-{
-       int ret;
-
-       pmu_irqs = reserve_pmu();
-       if (IS_ERR(pmu_irqs))
-               return PTR_ERR(pmu_irqs);
-
-#ifdef DEBUG
-       armv7_pmnc_dump_regs();
-#endif
-       ret = armv7_request_interrupts(pmu_irqs->irqs, pmu_irqs->num_irqs);
-       if (ret >= 0) {
-               armv7_start_pmnc();
-       } else {
-               release_pmu(pmu_irqs);
-               pmu_irqs = NULL;
-       }
-
-       return ret;
-}
-
-static int armv7_detect_pmnc(void)
-{
-       return 0;
-}
-
-struct op_arm_model_spec op_armv7_spec = {
-       .init           = armv7_detect_pmnc,
-       .num_counters   = 5,
-       .setup_ctrs     = armv7_setup_pmnc,
-       .start          = armv7_pmnc_start,
-       .stop           = armv7_pmnc_stop,
-       .name           = "arm/armv7",
-};
diff --git a/arch/arm/oprofile/op_model_v7.h b/arch/arm/oprofile/op_model_v7.h
deleted file mode 100644 (file)
index 9ca334b..0000000
+++ /dev/null
@@ -1,103 +0,0 @@
-/**
- * op_model_v7.h
- * ARM v7 (Cortex A8) Event Monitor Driver
- *
- * Copyright 2008 Jean Pihet <jpihet@mvista.com>
- * Copyright 2004 ARM SMP Development Team
- * Copyright 2000-2004 Deepak Saxena <dsaxena@mvista.com>
- * Copyright 2000-2004 MontaVista Software Inc
- * Copyright 2004 Dave Jiang <dave.jiang@intel.com>
- * Copyright 2004 Intel Corporation
- * Copyright 2004 Zwane Mwaikambo <zwane@arm.linux.org.uk>
- * Copyright 2004 Oprofile Authors
- *
- * Read the file COPYING
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef OP_MODEL_V7_H
-#define OP_MODEL_V7_H
-
-/*
- * Per-CPU PMNC: config reg
- */
-#define PMNC_E         (1 << 0)        /* Enable all counters */
-#define PMNC_P         (1 << 1)        /* Reset all counters */
-#define PMNC_C         (1 << 2)        /* Cycle counter reset */
-#define PMNC_D         (1 << 3)        /* CCNT counts every 64th cpu cycle */
-#define PMNC_X         (1 << 4)        /* Export to ETM */
-#define PMNC_DP                (1 << 5)        /* Disable CCNT if non-invasive debug*/
-#define        PMNC_MASK       0x3f            /* Mask for writable bits */
-
-/*
- * Available counters
- */
-#define CCNT           0
-#define CNT0           1
-#define CNT1           2
-#define CNT2           3
-#define CNT3           4
-#define CNTMAX                 5
-
-#define CPU_COUNTER(cpu, counter)      ((cpu) * CNTMAX + (counter))
-
-/*
- * CNTENS: counters enable reg
- */
-#define CNTENS_P0      (1 << 0)
-#define CNTENS_P1      (1 << 1)
-#define CNTENS_P2      (1 << 2)
-#define CNTENS_P3      (1 << 3)
-#define CNTENS_C       (1 << 31)
-#define        CNTENS_MASK     0x8000000f      /* Mask for writable bits */
-
-/*
- * CNTENC: counters disable reg
- */
-#define CNTENC_P0      (1 << 0)
-#define CNTENC_P1      (1 << 1)
-#define CNTENC_P2      (1 << 2)
-#define CNTENC_P3      (1 << 3)
-#define CNTENC_C       (1 << 31)
-#define        CNTENC_MASK     0x8000000f      /* Mask for writable bits */
-
-/*
- * INTENS: counters overflow interrupt enable reg
- */
-#define INTENS_P0      (1 << 0)
-#define INTENS_P1      (1 << 1)
-#define INTENS_P2      (1 << 2)
-#define INTENS_P3      (1 << 3)
-#define INTENS_C       (1 << 31)
-#define        INTENS_MASK     0x8000000f      /* Mask for writable bits */
-
-/*
- * EVTSEL: Event selection reg
- */
-#define        EVTSEL_MASK     0x7f            /* Mask for writable bits */
-
-/*
- * SELECT: Counter selection reg
- */
-#define        SELECT_MASK     0x1f            /* Mask for writable bits */
-
-/*
- * FLAG: counters overflow flag status reg
- */
-#define FLAG_P0                (1 << 0)
-#define FLAG_P1                (1 << 1)
-#define FLAG_P2                (1 << 2)
-#define FLAG_P3                (1 << 3)
-#define FLAG_C         (1 << 31)
-#define        FLAG_MASK       0x8000000f      /* Mask for writable bits */
-
-
-int armv7_setup_pmu(void);
-int armv7_start_pmu(void);
-int armv7_stop_pmu(void);
-int armv7_request_interrupts(const int *, int);
-void armv7_release_interrupts(const int *, int);
-
-#endif
diff --git a/arch/arm/oprofile/op_model_xscale.c b/arch/arm/oprofile/op_model_xscale.c
deleted file mode 100644 (file)
index 1d34a02..0000000
+++ /dev/null
@@ -1,444 +0,0 @@
-/**
- * @file op_model_xscale.c
- * XScale Performance Monitor Driver
- *
- * @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 Zwane Mwaikambo
- */
-
-/* #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 <linux/irq.h>
-
-#include <asm/cputype.h>
-#include <asm/pmu.h>
-
-#include "op_counter.h"
-#include "op_arm_model.h"
-
-#define        PMU_ENABLE      0x001   /* Enable counters */
-#define PMN_RESET      0x002   /* Reset event counters */
-#define        CCNT_RESET      0x004   /* Reset clock counter */
-#define        PMU_RESET       (CCNT_RESET | PMN_RESET)
-#define PMU_CNT64      0x008   /* Make CCNT count every 64th cycle */
-
-/*
- * Different types of events that can be counted by the XScale PMU
- * as used by Oprofile userspace. Here primarily for documentation
- * purposes.
- */
-
-#define EVT_ICACHE_MISS                        0x00
-#define        EVT_ICACHE_NO_DELIVER           0x01
-#define        EVT_DATA_STALL                  0x02
-#define        EVT_ITLB_MISS                   0x03
-#define        EVT_DTLB_MISS                   0x04
-#define        EVT_BRANCH                      0x05
-#define        EVT_BRANCH_MISS                 0x06
-#define        EVT_INSTRUCTION                 0x07
-#define        EVT_DCACHE_FULL_STALL           0x08
-#define        EVT_DCACHE_FULL_STALL_CONTIG    0x09
-#define        EVT_DCACHE_ACCESS               0x0A
-#define        EVT_DCACHE_MISS                 0x0B
-#define        EVT_DCACE_WRITE_BACK            0x0C
-#define        EVT_PC_CHANGED                  0x0D
-#define        EVT_BCU_REQUEST                 0x10
-#define        EVT_BCU_FULL                    0x11
-#define        EVT_BCU_DRAIN                   0x12
-#define        EVT_BCU_ECC_NO_ELOG             0x14
-#define        EVT_BCU_1_BIT_ERR               0x15
-#define        EVT_RMW                         0x16
-/* EVT_CCNT is not hardware defined */
-#define EVT_CCNT                       0xFE
-#define EVT_UNUSED                     0xFF
-
-struct pmu_counter {
-       volatile unsigned long ovf;
-       unsigned long reset_counter;
-};
-
-enum { CCNT, PMN0, PMN1, PMN2, PMN3, MAX_COUNTERS };
-
-static struct pmu_counter results[MAX_COUNTERS];
-
-/*
- * There are two versions of the PMU in current XScale processors
- * with differing register layouts and number of performance counters.
- * e.g. IOP32x is xsc1 whilst IOP33x is xsc2.
- * We detect which register layout to use in xscale_detect_pmu()
- */
-enum { PMU_XSC1, PMU_XSC2 };
-
-struct pmu_type {
-       int id;
-       char *name;
-       int num_counters;
-       unsigned int int_enable;
-       unsigned int cnt_ovf[MAX_COUNTERS];
-       unsigned int int_mask[MAX_COUNTERS];
-};
-
-static struct pmu_type pmu_parms[] = {
-       {
-               .id             = PMU_XSC1,
-               .name           = "arm/xscale1",
-               .num_counters   = 3,
-               .int_mask       = { [PMN0] = 0x10, [PMN1] = 0x20,
-                                   [CCNT] = 0x40 },
-               .cnt_ovf        = { [CCNT] = 0x400, [PMN0] = 0x100,
-                                   [PMN1] = 0x200},
-       },
-       {
-               .id             = PMU_XSC2,
-               .name           = "arm/xscale2",
-               .num_counters   = 5,
-               .int_mask       = { [CCNT] = 0x01, [PMN0] = 0x02,
-                                   [PMN1] = 0x04, [PMN2] = 0x08,
-                                   [PMN3] = 0x10 },
-               .cnt_ovf        = { [CCNT] = 0x01, [PMN0] = 0x02,
-                                   [PMN1] = 0x04, [PMN2] = 0x08,
-                                   [PMN3] = 0x10 },
-       },
-};
-
-static struct pmu_type *pmu;
-
-static void write_pmnc(u32 val)
-{
-       if (pmu->id == PMU_XSC1) {
-               /* upper 4bits and 7, 11 are write-as-0 */
-               val &= 0xffff77f;
-               __asm__ __volatile__ ("mcr p14, 0, %0, c0, c0, 0" : : "r" (val));
-       } else {
-               /* bits 4-23 are write-as-0, 24-31 are write ignored */
-               val &= 0xf;
-               __asm__ __volatile__ ("mcr p14, 0, %0, c0, c1, 0" : : "r" (val));
-       }
-}
-
-static u32 read_pmnc(void)
-{
-       u32 val;
-
-       if (pmu->id == PMU_XSC1)
-               __asm__ __volatile__ ("mrc p14, 0, %0, c0, c0, 0" : "=r" (val));
-       else {
-               __asm__ __volatile__ ("mrc p14, 0, %0, c0, c1, 0" : "=r" (val));
-               /* bits 1-2 and 4-23 are read-unpredictable */
-               val &= 0xff000009;
-       }
-
-       return val;
-}
-
-static u32 __xsc1_read_counter(int counter)
-{
-       u32 val = 0;
-
-       switch (counter) {
-       case CCNT:
-               __asm__ __volatile__ ("mrc p14, 0, %0, c1, c0, 0" : "=r" (val));
-               break;
-       case PMN0:
-               __asm__ __volatile__ ("mrc p14, 0, %0, c2, c0, 0" : "=r" (val));
-               break;
-       case PMN1:
-               __asm__ __volatile__ ("mrc p14, 0, %0, c3, c0, 0" : "=r" (val));
-               break;
-       }
-       return val;
-}
-
-static u32 __xsc2_read_counter(int counter)
-{
-       u32 val = 0;
-
-       switch (counter) {
-       case CCNT:
-               __asm__ __volatile__ ("mrc p14, 0, %0, c1, c1, 0" : "=r" (val));
-               break;
-       case PMN0:
-               __asm__ __volatile__ ("mrc p14, 0, %0, c0, c2, 0" : "=r" (val));
-               break;
-       case PMN1:
-               __asm__ __volatile__ ("mrc p14, 0, %0, c1, c2, 0" : "=r" (val));
-               break;
-       case PMN2:
-               __asm__ __volatile__ ("mrc p14, 0, %0, c2, c2, 0" : "=r" (val));
-               break;
-       case PMN3:
-               __asm__ __volatile__ ("mrc p14, 0, %0, c3, c2, 0" : "=r" (val));
-               break;
-       }
-       return val;
-}
-
-static u32 read_counter(int counter)
-{
-       u32 val;
-
-       if (pmu->id == PMU_XSC1)
-               val = __xsc1_read_counter(counter);
-       else
-               val = __xsc2_read_counter(counter);
-
-       return val;
-}
-
-static void __xsc1_write_counter(int counter, u32 val)
-{
-       switch (counter) {
-       case CCNT:
-               __asm__ __volatile__ ("mcr p14, 0, %0, c1, c0, 0" : : "r" (val));
-               break;
-       case PMN0:
-               __asm__ __volatile__ ("mcr p14, 0, %0, c2, c0, 0" : : "r" (val));
-               break;
-       case PMN1:
-               __asm__ __volatile__ ("mcr p14, 0, %0, c3, c0, 0" : : "r" (val));
-               break;
-       }
-}
-
-static void __xsc2_write_counter(int counter, u32 val)
-{
-       switch (counter) {
-       case CCNT:
-               __asm__ __volatile__ ("mcr p14, 0, %0, c1, c1, 0" : : "r" (val));
-               break;
-       case PMN0:
-               __asm__ __volatile__ ("mcr p14, 0, %0, c0, c2, 0" : : "r" (val));
-               break;
-       case PMN1:
-               __asm__ __volatile__ ("mcr p14, 0, %0, c1, c2, 0" : : "r" (val));
-               break;
-       case PMN2:
-               __asm__ __volatile__ ("mcr p14, 0, %0, c2, c2, 0" : : "r" (val));
-               break;
-       case PMN3:
-               __asm__ __volatile__ ("mcr p14, 0, %0, c3, c2, 0" : : "r" (val));
-               break;
-       }
-}
-
-static void write_counter(int counter, u32 val)
-{
-       if (pmu->id == PMU_XSC1)
-               __xsc1_write_counter(counter, val);
-       else
-               __xsc2_write_counter(counter, val);
-}
-
-static int xscale_setup_ctrs(void)
-{
-       u32 evtsel, pmnc;
-       int i;
-
-       for (i = CCNT; i < MAX_COUNTERS; i++) {
-               if (counter_config[i].enabled)
-                       continue;
-
-               counter_config[i].event = EVT_UNUSED;
-       }
-
-       switch (pmu->id) {
-       case PMU_XSC1:
-               pmnc = (counter_config[PMN1].event << 20) | (counter_config[PMN0].event << 12);
-               pr_debug("xscale_setup_ctrs: pmnc: %#08x\n", pmnc);
-               write_pmnc(pmnc);
-               break;
-
-       case PMU_XSC2:
-               evtsel = counter_config[PMN0].event | (counter_config[PMN1].event << 8) |
-                       (counter_config[PMN2].event << 16) | (counter_config[PMN3].event << 24);
-
-               pr_debug("xscale_setup_ctrs: evtsel %#08x\n", evtsel);
-               __asm__ __volatile__ ("mcr p14, 0, %0, c8, c1, 0" : : "r" (evtsel));
-               break;
-       }
-
-       for (i = CCNT; i < MAX_COUNTERS; i++) {
-               if (counter_config[i].event == EVT_UNUSED) {
-                       counter_config[i].event = 0;
-                       pmu->int_enable &= ~pmu->int_mask[i];
-                       continue;
-               }
-
-               results[i].reset_counter = counter_config[i].count;
-               write_counter(i, -(u32)counter_config[i].count);
-               pmu->int_enable |= pmu->int_mask[i];
-               pr_debug("xscale_setup_ctrs: counter%d %#08x from %#08lx\n", i,
-                       read_counter(i), counter_config[i].count);
-       }
-
-       return 0;
-}
-
-static void inline __xsc1_check_ctrs(void)
-{
-       int i;
-       u32 pmnc = read_pmnc();
-
-       /* NOTE: there's an A stepping errata that states if an overflow */
-       /*       bit already exists and another occurs, the previous     */
-       /*       Overflow bit gets cleared. There's no workaround.       */
-       /*       Fixed in B stepping or later                            */
-
-       /* Write the value back to clear the overflow flags. Overflow */
-       /* flags remain in pmnc for use below */
-       write_pmnc(pmnc & ~PMU_ENABLE);
-
-       for (i = CCNT; i <= PMN1; i++) {
-               if (!(pmu->int_mask[i] & pmu->int_enable))
-                       continue;
-
-               if (pmnc & pmu->cnt_ovf[i])
-                       results[i].ovf++;
-       }
-}
-
-static void inline __xsc2_check_ctrs(void)
-{
-       int i;
-       u32 flag = 0, pmnc = read_pmnc();
-
-       pmnc &= ~PMU_ENABLE;
-       write_pmnc(pmnc);
-
-       /* read overflow flag register */
-       __asm__ __volatile__ ("mrc p14, 0, %0, c5, c1, 0" : "=r" (flag));
-
-       for (i = CCNT; i <= PMN3; i++) {
-               if (!(pmu->int_mask[i] & pmu->int_enable))
-                       continue;
-
-               if (flag & pmu->cnt_ovf[i])
-                       results[i].ovf++;
-       }
-
-       /* writeback clears overflow bits */
-       __asm__ __volatile__ ("mcr p14, 0, %0, c5, c1, 0" : : "r" (flag));
-}
-
-static irqreturn_t xscale_pmu_interrupt(int irq, void *arg)
-{
-       int i;
-       u32 pmnc;
-
-       if (pmu->id == PMU_XSC1)
-               __xsc1_check_ctrs();
-       else
-               __xsc2_check_ctrs();
-
-       for (i = CCNT; i < MAX_COUNTERS; i++) {
-               if (!results[i].ovf)
-                       continue;
-
-               write_counter(i, -(u32)results[i].reset_counter);
-               oprofile_add_sample(get_irq_regs(), i);
-               results[i].ovf--;
-       }
-
-       pmnc = read_pmnc() | PMU_ENABLE;
-       write_pmnc(pmnc);
-
-       return IRQ_HANDLED;
-}
-
-static const struct pmu_irqs *pmu_irqs;
-
-static void xscale_pmu_stop(void)
-{
-       u32 pmnc = read_pmnc();
-
-       pmnc &= ~PMU_ENABLE;
-       write_pmnc(pmnc);
-
-       free_irq(pmu_irqs->irqs[0], results);
-       release_pmu(pmu_irqs);
-       pmu_irqs = NULL;
-}
-
-static int xscale_pmu_start(void)
-{
-       int ret;
-       u32 pmnc;
-
-       pmu_irqs = reserve_pmu();
-       if (IS_ERR(pmu_irqs))
-               return PTR_ERR(pmu_irqs);
-
-       pmnc = read_pmnc();
-
-       ret = request_irq(pmu_irqs->irqs[0], xscale_pmu_interrupt,
-                         IRQF_DISABLED, "XScale PMU", (void *)results);
-
-       if (ret < 0) {
-               printk(KERN_ERR "oprofile: unable to request IRQ%d for XScale PMU\n",
-                      pmu_irqs->irqs[0]);
-               release_pmu(pmu_irqs);
-               pmu_irqs = NULL;
-               return ret;
-       }
-
-       if (pmu->id == PMU_XSC1)
-               pmnc |= pmu->int_enable;
-       else {
-               __asm__ __volatile__ ("mcr p14, 0, %0, c4, c1, 0" : : "r" (pmu->int_enable));
-               pmnc &= ~PMU_CNT64;
-       }
-
-       pmnc |= PMU_ENABLE;
-       write_pmnc(pmnc);
-       pr_debug("xscale_pmu_start: pmnc: %#08x mask: %08x\n", pmnc, pmu->int_enable);
-       return 0;
-}
-
-static int xscale_detect_pmu(void)
-{
-       int ret = 0;
-       u32 id;
-
-       id = (read_cpuid(CPUID_ID) >> 13) & 0x7;
-
-       switch (id) {
-       case 1:
-               pmu = &pmu_parms[PMU_XSC1];
-               break;
-       case 2:
-               pmu = &pmu_parms[PMU_XSC2];
-               break;
-       default:
-               ret = -ENODEV;
-               break;
-       }
-
-       if (!ret) {
-               op_xscale_spec.name = pmu->name;
-               op_xscale_spec.num_counters = pmu->num_counters;
-               pr_debug("xscale_detect_pmu: detected %s PMU\n", pmu->name);
-       }
-
-       return ret;
-}
-
-struct op_arm_model_spec op_xscale_spec = {
-       .init           = xscale_detect_pmu,
-       .setup_ctrs     = xscale_setup_ctrs,
-       .start          = xscale_pmu_start,
-       .stop           = xscale_pmu_stop,
-};
-