Now that Oprofile uses Perf-events as backend, its old framework files
are not needed. Kconfig is modified to let hardware performance events be
the prerequisite of Oprofile.
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@xxxxxxxxx>
---
arch/mips/Kconfig | 4 +-
arch/mips/oprofile/Makefile | 7 -
arch/mips/oprofile/op_impl.h | 39 -----
arch/mips/oprofile/op_model_loongson2.c | 139 ------------------
arch/mips/oprofile/op_model_mipsxx.c | 237 -------------------------------
arch/mips/oprofile/op_model_rm9000.c | 124 ----------------
6 files changed, 2 insertions(+), 548 deletions(-)
delete mode 100644 arch/mips/oprofile/op_impl.h
delete mode 100644 arch/mips/oprofile/op_model_loongson2.c
delete mode 100644 arch/mips/oprofile/op_model_mipsxx.c
delete mode 100644 arch/mips/oprofile/op_model_rm9000.c
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 27577b4..6f47117 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -3,7 +3,7 @@ config MIPS
default y
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IDE
- select HAVE_OPROFILE
+ select HAVE_OPROFILE if HW_PERF_EVENTS
select HAVE_PERF_EVENTS
select PERF_USE_VMALLOC
select GENERIC_ATOMIC64 if !64BIT
@@ -1890,7 +1890,7 @@ config NODES_SHIFT
config HW_PERF_EVENTS
bool "Enable hardware performance counter support for perf events"
- depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32
+ depends on PERF_EVENTS && !MIPS_MT_SMTC
default y
help
Enable hardware performance counter support for perf events. If
diff --git a/arch/mips/oprofile/Makefile b/arch/mips/oprofile/Makefile
index 02cc65e..10ec71d 100644
--- a/arch/mips/oprofile/Makefile
+++ b/arch/mips/oprofile/Makefile
@@ -9,10 +9,3 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
timer_int.o )
oprofile-y := $(DRIVER_OBJS) common.o
-
-oprofile-$(CONFIG_CPU_MIPS32) += op_model_mipsxx.o
-oprofile-$(CONFIG_CPU_MIPS64) += op_model_mipsxx.o
-oprofile-$(CONFIG_CPU_R10000) += op_model_mipsxx.o
-oprofile-$(CONFIG_CPU_SB1) += op_model_mipsxx.o
-oprofile-$(CONFIG_CPU_RM9000) += op_model_rm9000.o
-oprofile-$(CONFIG_CPU_LOONGSON2) += op_model_loongson2.o
diff --git a/arch/mips/oprofile/op_impl.h b/arch/mips/oprofile/op_impl.h
deleted file mode 100644
index f04b54f..0000000
--- a/arch/mips/oprofile/op_impl.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/**
- * @file arch/alpha/oprofile/op_impl.h
- *
- * @remark Copyright 2002 OProfile authors
- * @remark Read the file COPYING
- *
- * @author Richard Henderson <rth@xxxxxxxxxxx>
- */
-
-#ifndef OP_IMPL_H
-#define OP_IMPL_H 1
-
-extern int (*perf_irq)(void);
-
-/* Per-counter configuration as set via oprofilefs. */
-struct op_counter_config {
- unsigned long enabled;
- unsigned long event;
- unsigned long count;
- /* Dummies because I am too lazy to hack the userspace tools. */
- unsigned long kernel;
- unsigned long user;
- unsigned long exl;
- unsigned long unit_mask;
-};
-
-/* Per-architecture configury and hooks. */
-struct op_mips_model {
- void (*reg_setup) (struct op_counter_config *);
- void (*cpu_setup) (void *dummy);
- int (*init)(void);
- void (*exit)(void);
- void (*cpu_start)(void *args);
- void (*cpu_stop)(void *args);
- char *cpu_type;
- unsigned char num_counters;
-};
-
-#endif
diff --git a/arch/mips/oprofile/op_model_loongson2.c b/arch/mips/oprofile/op_model_loongson2.c
deleted file mode 100644
index 9e61ecd..0000000
--- a/arch/mips/oprofile/op_model_loongson2.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Loongson2 performance counter driver for oprofile
- *
- * Copyright (C) 2009 Lemote Inc.
- * Author: Yanhua <yanh@xxxxxxxxxx>
- * Author: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/oprofile.h>
-#include <linux/interrupt.h>
-#include <asm/pmu.h>
-
-#include <loongson.h> /* LOONGSON2_PERFCNT_IRQ */
-#include "op_impl.h"
-
-static struct loongson2_register_config {
- unsigned int ctrl;
- unsigned long long reset_counter1;
- unsigned long long reset_counter2;
- int cnt1_enabled, cnt2_enabled;
-} reg;
-
-static char *oprofid = "LoongsonPerf";
-static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id);
-
-static void loongson2_reg_setup(struct op_counter_config *cfg)
-{
- unsigned int ctrl = 0;
-
- reg.reset_counter1 = 0;
- reg.reset_counter2 = 0;
-
- /*
- * Compute the performance counter ctrl word.
- * For now, count kernel and user mode.
- */
- if (cfg[0].enabled) {
- ctrl |= LOONGSON2_PERFCTRL_EVENT(0, cfg[0].event);
- reg.reset_counter1 = 0x80000000ULL - cfg[0].count;
- }
-
- if (cfg[1].enabled) {
- ctrl |= LOONGSON2_PERFCTRL_EVENT(1, cfg[1].event);
- reg.reset_counter2 = 0x80000000ULL - cfg[1].count;
- }
-
- if (cfg[0].enabled || cfg[1].enabled) {
- ctrl |= LOONGSON2_PERFCTRL_EXL | LOONGSON2_PERFCTRL_ENABLE;
- if (cfg[0].kernel || cfg[1].kernel)
- ctrl |= LOONGSON2_PERFCTRL_KERNEL;
- if (cfg[0].user || cfg[1].user)
- ctrl |= LOONGSON2_PERFCTRL_USER;
- }
-
- reg.ctrl = ctrl;
-
- reg.cnt1_enabled = cfg[0].enabled;
- reg.cnt2_enabled = cfg[1].enabled;
-}
-
-static void loongson2_cpu_setup(void *args)
-{
- write_c0_perfcnt((reg.reset_counter2 << 32) | reg.reset_counter1);
-}
-
-static void loongson2_cpu_start(void *args)
-{
- /* Start all counters on current CPU */
- if (reg.cnt1_enabled || reg.cnt2_enabled)
- write_c0_perfctrl(reg.ctrl);
-}
-
-static void loongson2_cpu_stop(void *args)
-{
- /* Stop all counters on current CPU */
- write_c0_perfctrl(0);
- memset(®, 0, sizeof(reg));
-}
-
-static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id)
-{
- uint64_t counter, counter1, counter2;
- struct pt_regs *regs = get_irq_regs();
- int enabled;
-
- /* Check whether the irq belongs to me */
- enabled = read_c0_perfctrl() & LOONGSON2_PERFCTRL_ENABLE;
- if (!enabled)
- return IRQ_NONE;
- enabled = reg.cnt1_enabled | reg.cnt2_enabled;
- if (!enabled)
- return IRQ_NONE;
-
- counter = read_c0_perfcnt();
- counter1 = counter & 0xffffffff;
- counter2 = counter >> 32;
-
- if (counter1 & LOONGSON2_PERFCNT_OVERFLOW) {
- if (reg.cnt1_enabled)
- oprofile_add_sample(regs, 0);
- counter1 = reg.reset_counter1;
- }
- if (counter2 & LOONGSON2_PERFCNT_OVERFLOW) {
- if (reg.cnt2_enabled)
- oprofile_add_sample(regs, 1);
- counter2 = reg.reset_counter2;
- }
-
- write_c0_perfcnt((counter2 << 32) | counter1);
-
- return IRQ_HANDLED;
-}
-
-static int __init loongson2_init(void)
-{
- return request_irq(LOONGSON2_PERFCNT_IRQ, loongson2_perfcount_handler,
- IRQF_SHARED, "Perfcounter", oprofid);
-}
-
-static void loongson2_exit(void)
-{
- write_c0_perfctrl(0);
- free_irq(LOONGSON2_PERFCNT_IRQ, oprofid);
-}
-
-struct op_mips_model op_model_loongson2_ops = {
- .reg_setup = loongson2_reg_setup,
- .cpu_setup = loongson2_cpu_setup,
- .init = loongson2_init,
- .exit = loongson2_exit,
- .cpu_start = loongson2_cpu_start,
- .cpu_stop = loongson2_cpu_stop,
- .cpu_type = LOONGSON2_CPU_TYPE,
- .num_counters = 2
-};
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
deleted file mode 100644
index 96f14e8..0000000
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2004, 05, 06 by Ralf Baechle
- * Copyright (C) 2005 by MIPS Technologies, Inc.
- */
-#include <linux/cpumask.h>
-#include <linux/oprofile.h>
-#include <linux/interrupt.h>
-#include <linux/smp.h>
-#include <asm/irq_regs.h>
-#include <asm/pmu.h>
-
-#include "op_impl.h"
-
-
-struct op_mips_model op_model_mipsxx_ops;
-
-static struct mipsxx_register_config {
- unsigned int control[4];
- unsigned int counter[4];
-} reg;
-
-/* Compute all of the registers in preparation for enabling profiling. */
-
-static void mipsxx_reg_setup(struct op_counter_config *ctr)
-{
- unsigned int counters = op_model_mipsxx_ops.num_counters;
- int i;
-
- /* Compute the performance counter control word. */
- for (i = 0; i < counters; i++) {
- reg.control[i] = 0;
- reg.counter[i] = 0;
-
- if (!ctr[i].enabled)
- continue;
-
- reg.control[i] = M_PERFCTL_EVENT(ctr[i].event) |
- M_PERFCTL_INTERRUPT_ENABLE;
- if (ctr[i].kernel)
- reg.control[i] |= M_PERFCTL_KERNEL;
- if (ctr[i].user)
- reg.control[i] |= M_PERFCTL_USER;
- if (ctr[i].exl)
- reg.control[i] |= M_PERFCTL_EXL;
- reg.counter[i] = 0x80000000 - ctr[i].count;
- }
-}
-
-/* Program all of the registers in preparation for enabling profiling. */
-
-static void mipsxx_cpu_setup(void *args)
-{
- unsigned int counters = op_model_mipsxx_ops.num_counters;
-
- switch (counters) {
- case 4:
- w_c0_perfctrl3(0);
- w_c0_perfcntr3(reg.counter[3]);
- case 3:
- w_c0_perfctrl2(0);
- w_c0_perfcntr2(reg.counter[2]);
- case 2:
- w_c0_perfctrl1(0);
- w_c0_perfcntr1(reg.counter[1]);
- case 1:
- w_c0_perfctrl0(0);
- w_c0_perfcntr0(reg.counter[0]);
- }
-}
-
-/* Start all counters on current CPU */
-static void mipsxx_cpu_start(void *args)
-{
- unsigned int counters = op_model_mipsxx_ops.num_counters;
-
- switch (counters) {
- case 4:
- w_c0_perfctrl3(WHAT | reg.control[3]);
- case 3:
- w_c0_perfctrl2(WHAT | reg.control[2]);
- case 2:
- w_c0_perfctrl1(WHAT | reg.control[1]);
- case 1:
- w_c0_perfctrl0(WHAT | reg.control[0]);
- }
-}
-
-/* Stop all counters on current CPU */
-static void mipsxx_cpu_stop(void *args)
-{
- unsigned int counters = op_model_mipsxx_ops.num_counters;
-
- switch (counters) {
- case 4:
- w_c0_perfctrl3(0);
- case 3:
- w_c0_perfctrl2(0);
- case 2:
- w_c0_perfctrl1(0);
- case 1:
- w_c0_perfctrl0(0);
- }
-}
-
-static int mipsxx_perfcount_handler(void)
-{
- unsigned int counters = op_model_mipsxx_ops.num_counters;
- unsigned int control;
- unsigned int counter;
- int handled = IRQ_NONE;
-
- if (cpu_has_mips_r2 && !(read_c0_cause() & (1 << 26)))
- return handled;
-
- switch (counters) {
-#define HANDLE_COUNTER(n) \
- case n + 1: \
- control = r_c0_perfctrl ## n(); \
- counter = r_c0_perfcntr ## n(); \
- if ((control & M_PERFCTL_INTERRUPT_ENABLE) && \
- (counter & M_COUNTER_OVERFLOW)) { \
- oprofile_add_sample(get_irq_regs(), n); \
- w_c0_perfcntr ## n(reg.counter[n]); \
- handled = IRQ_HANDLED; \
- }
- HANDLE_COUNTER(3)
- HANDLE_COUNTER(2)
- HANDLE_COUNTER(1)
- HANDLE_COUNTER(0)
- }
-
- return handled;
-}
-
-static int (*save_perf_irq)(void);
-
-static int __init mipsxx_init(void)
-{
- int counters;
-
- counters = n_counters();
- if (counters == 0) {
- printk(KERN_ERR "Oprofile: CPU has no performance counters\n");
- return -ENODEV;
- }
-
-#ifdef CONFIG_MIPS_MT_SMP
- cpu_has_mipsmt_pertccounters = read_c0_config7() & (1<<19);
- if (!cpu_has_mipsmt_pertccounters)
- counters = counters_total_to_per_cpu(counters);
-#endif
- on_each_cpu(reset_counters, (void *)(long)counters, 1);
-
- op_model_mipsxx_ops.num_counters = counters;
- switch (current_cpu_type()) {
- case CPU_20KC:
- op_model_mipsxx_ops.cpu_type = "mips/20K";
- break;
-
- case CPU_24K:
- op_model_mipsxx_ops.cpu_type = "mips/24K";
- break;
-
- case CPU_25KF:
- op_model_mipsxx_ops.cpu_type = "mips/25K";
- break;
-
- case CPU_1004K:
-#if 0
- /* FIXME: report as 34K for now */
- op_model_mipsxx_ops.cpu_type = "mips/1004K";
- break;
-#endif
-
- case CPU_34K:
- op_model_mipsxx_ops.cpu_type = "mips/34K";
- break;
-
- case CPU_74K:
- op_model_mipsxx_ops.cpu_type = "mips/74K";
- break;
-
- case CPU_5KC:
- op_model_mipsxx_ops.cpu_type = "mips/5K";
- break;
-
- case CPU_R10000:
- if ((current_cpu_data.processor_id & 0xff) == 0x20)
- op_model_mipsxx_ops.cpu_type = "mips/r10000-v2.x";
- else
- op_model_mipsxx_ops.cpu_type = "mips/r10000";
- break;
-
- case CPU_R12000:
- case CPU_R14000:
- op_model_mipsxx_ops.cpu_type = "mips/r12000";
- break;
-
- case CPU_SB1:
- case CPU_SB1A:
- op_model_mipsxx_ops.cpu_type = "mips/sb1";
- break;
-
- default:
- printk(KERN_ERR "Profiling unsupported for this CPU\n");
-
- return -ENODEV;
- }
-
- save_perf_irq = perf_irq;
- perf_irq = mipsxx_perfcount_handler;
-
- return 0;
-}
-
-static void mipsxx_exit(void)
-{
- int counters = op_model_mipsxx_ops.num_counters;
-
- counters = counters_per_cpu_to_total(counters);
- on_each_cpu(reset_counters, (void *)(long)counters, 1);
-
- perf_irq = save_perf_irq;
-}
-
-struct op_mips_model op_model_mipsxx_ops = {
- .reg_setup = mipsxx_reg_setup,
- .cpu_setup = mipsxx_cpu_setup,
- .init = mipsxx_init,
- .exit = mipsxx_exit,
- .cpu_start = mipsxx_cpu_start,
- .cpu_stop = mipsxx_cpu_stop,
-};
diff --git a/arch/mips/oprofile/op_model_rm9000.c b/arch/mips/oprofile/op_model_rm9000.c
deleted file mode 100644
index 48e7487..0000000
--- a/arch/mips/oprofile/op_model_rm9000.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2004 by Ralf Baechle
- */
-#include <linux/init.h>
-#include <linux/oprofile.h>
-#include <linux/interrupt.h>
-#include <linux/smp.h>
-#include <asm/pmu.h>
-
-#include "op_impl.h"
-
-
-static struct rm9k_register_config {
- unsigned int control;
- unsigned int reset_counter1;
- unsigned int reset_counter2;
-} reg;
-
-/* Compute all of the registers in preparation for enabling profiling. */
-
-static void rm9000_reg_setup(struct op_counter_config *ctr)
-{
- unsigned int control = 0;
-
- /* Compute the performance counter control word. */
- /* For now count kernel and user mode */
- if (ctr[0].enabled)
- control |= RM9K_COUNTER1_EVENT(ctr[0].event) |
- RM9K_COUNTER1_KERNEL |
- RM9K_COUNTER1_USER |
- RM9K_COUNTER1_ENABLE;
- if (ctr[1].enabled)
- control |= RM9K_COUNTER2_EVENT(ctr[1].event) |
- RM9K_COUNTER2_KERNEL |
- RM9K_COUNTER2_USER |
- RM9K_COUNTER2_ENABLE;
- reg.control = control;
-
- reg.reset_counter1 = 0x80000000 - ctr[0].count;
- reg.reset_counter2 = 0x80000000 - ctr[1].count;
-}
-
-/* Program all of the registers in preparation for enabling profiling. */
-
-static void rm9000_cpu_setup(void *args)
-{
- uint64_t perfcount;
-
- perfcount = ((uint64_t) reg.reset_counter2 << 32) | reg.reset_counter1;
- write_c0_perfcount(perfcount);
-}
-
-static void rm9000_cpu_start(void *args)
-{
- /* Start all counters on current CPU */
- write_c0_perfcontrol(reg.control);
-}
-
-static void rm9000_cpu_stop(void *args)
-{
- /* Stop all counters on current CPU */
- write_c0_perfcontrol(0);
-}
-
-static irqreturn_t rm9000_perfcount_handler(int irq, void *dev_id)
-{
- unsigned int control = read_c0_perfcontrol();
- struct pt_regs *regs = get_irq_regs();
- uint32_t counter1, counter2;
- uint64_t counters;
-
- /*
- * RM9000 combines two 32-bit performance counters into a single
- * 64-bit coprocessor zero register. To avoid a race updating the
- * registers we need to stop the counters while we're messing with
- * them ...
- */
- write_c0_perfcontrol(0);
-
- counters = read_c0_perfcount();
- counter1 = counters;
- counter2 = counters >> 32;
-
- if (control & RM9K_COUNTER1_OVERFLOW) {
- oprofile_add_sample(regs, 0);
- counter1 = reg.reset_counter1;
- }
- if (control & RM9K_COUNTER2_OVERFLOW) {
- oprofile_add_sample(regs, 1);
- counter2 = reg.reset_counter2;
- }
-
- counters = ((uint64_t)counter2 << 32) | counter1;
- write_c0_perfcount(counters);
- write_c0_perfcontrol(reg.control);
-
- return IRQ_HANDLED;
-}
-
-static int __init rm9000_init(void)
-{
- return request_irq(rm9000_perfcount_irq, rm9000_perfcount_handler,
- 0, "Perfcounter", NULL);
-}
-
-static void rm9000_exit(void)
-{
- free_irq(rm9000_perfcount_irq, NULL);
-}
-
-struct op_mips_model op_model_rm9000_ops = {
- .reg_setup = rm9000_reg_setup,
- .cpu_setup = rm9000_cpu_setup,
- .init = rm9000_init,
- .exit = rm9000_exit,
- .cpu_start = rm9000_cpu_start,
- .cpu_stop = rm9000_cpu_stop,
- .cpu_type = "mips/rm9000",
- .num_counters = 2
-};
--
1.6.3.3
