hex "Flash Memory Bank Control Register"
depends on BF54x
default 6
-
-config HARDWARE_PM
- bool "OProfile use hardware porformance monitor"
- depends on OPROFILE=y
- default n
-
endmenu
#############################################################################
r0 = [p2];
[sp + PT_IPEND] = r0;
-#ifdef CONFIG_HARDWARE_PM
- r7 = [sp + PT_SEQSTAT];
- r7 = r7 >>> 0xe;
- r6 = 0x1F;
- r7 = r7 & r6;
- r5 = 0x12;
- cc = r7 == r5;
- if cc jump .Lcall_do_ovf; /* deal with performance counter overflow */
-#endif
-
/* set the EXCAUSE to HWERR for trap_c */
r0 = [sp + PT_SEQSTAT];
R1.L = LO(VEC_HWERR);
.Lcommon_restore_all_sys:
RESTORE_ALL_SYS
rti;
-
-#ifdef CONFIG_HARDWARE_PM
-.Lcall_do_ovf:
-
- R0 = SP;
- SP += -12;
- call _pm_overflow;
- SP += 12;
-
- jump .Lcommon_restore_all_sys;
-#endif
-
ENDPROC(_evt_ivhw)
/* Interrupt routine for evt2 (NMI).
#include <asm/traps.h>
#include <asm/blackfin.h>
-#include "../oprofile/op_blackfin.h"
-
#ifdef CONFIG_DEBUG_ICACHE_CHECK
#define L1_ICACHE_START 0xffa10000
#define L1_ICACHE_END 0xffa13fff
#endif
}
-
-#ifdef CONFIG_HARDWARE_PM
-/*
- * call the handler of Performance overflow
- */
-asmlinkage void pm_overflow(struct pt_regs *regs)
-{
- pm_overflow_handler(regs);
-}
-#endif
timer_int.o )
oprofile-y := $(DRIVER_OBJS) common.o
-oprofile-$(CONFIG_HARDWARE_PM) += op_model_bf533.o
#include <linux/oprofile.h>
#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/mutex.h>
-#include <linux/ptrace.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-#include <asm/system.h>
-#include <asm/blackfin.h>
-
-#include "op_blackfin.h"
-
-#define BFIN_533_ID 0xE5040003
-#define BFIN_537_ID 0xE5040002
-
-static int pfmon_enabled;
-static struct mutex pfmon_lock;
-
-struct op_bfin533_model *model;
-
-struct op_counter_config ctr[OP_MAX_COUNTER];
-
-static int op_bfin_setup(void)
-{
- int ret;
-
- /* Pre-compute the values to stuff in the hardware registers. */
- spin_lock(&oprofilefs_lock);
- ret = model->reg_setup(ctr);
- spin_unlock(&oprofilefs_lock);
-
- return ret;
-}
-
-static void op_bfin_shutdown(void)
-{
-#if 0
- /* what is the difference between shutdown and stop? */
-#endif
-}
-
-static int op_bfin_start(void)
-{
- int ret = -EBUSY;
-
- printk(KERN_INFO "KSDBG:in %s\n", __func__);
- mutex_lock(&pfmon_lock);
- if (!pfmon_enabled) {
- ret = model->start(ctr);
- pfmon_enabled = !ret;
- }
- mutex_unlock(&pfmon_lock);
-
- return ret;
-}
-
-static void op_bfin_stop(void)
-{
- mutex_lock(&pfmon_lock);
- if (pfmon_enabled) {
- model->stop();
- pfmon_enabled = 0;
- }
- mutex_unlock(&pfmon_lock);
-}
-
-static int op_bfin_create_files(struct super_block *sb, struct dentry *root)
-{
- int i;
-
- for (i = 0; i < model->num_counters; ++i) {
- struct dentry *dir;
- char buf[3];
- printk(KERN_INFO "Oprofile: creating files... \n");
-
- snprintf(buf, sizeof buf, "%d", i);
- dir = oprofilefs_mkdir(sb, root, buf);
-
- oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
- oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
- oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count);
- /*
- * We dont support per counter user/kernel selection, but
- * we leave the entries because userspace expects them
- */
- oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
- oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
- oprofilefs_create_ulong(sb, dir, "unit_mask",
- &ctr[i].unit_mask);
- }
-
- return 0;
-}
int __init oprofile_arch_init(struct oprofile_operations *ops)
{
-#ifdef CONFIG_HARDWARE_PM
- mutex_init(&pfmon_lock);
-
-
- switch (bfin_read_CHIPID() & CHIPID_MANUFACTURE) {
- case 0xca:
- printk(KERN_INFO "Oprofile: cpu vendor is Analog Devices.\n");
- model = &op_model_bfin533;
- model->num_counters = 2;
- break;
- default:
- return -ENODEV;
- }
-
- ops->cpu_type = model->name;
- ops->create_files = op_bfin_create_files;
- ops->setup = op_bfin_setup;
- ops->shutdown = op_bfin_shutdown;
- ops->start = op_bfin_start;
- ops->stop = op_bfin_stop;
-
- printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
- ops->cpu_type);
-
- return 0;
-#else
return -1;
-#endif
}
void oprofile_arch_exit(void)
+++ /dev/null
-/*
- * File: arch/blackfin/oprofile/op_blackfin.h
- * Based on:
- * Author: Anton Blanchard <anton@au.ibm.com>
- *
- * Created:
- * Description:
- *
- * Modified:
- * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
- * Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef OP_BLACKFIN_H
-#define OP_BLACKFIN_H 1
-
-#define OP_MAX_COUNTER 2
-
-#include <asm/blackfin.h>
-
-/* Per-counter configuration as set via oprofilefs. */
-struct op_counter_config {
- unsigned long valid;
- unsigned long enabled;
- unsigned long event;
- unsigned long count;
- unsigned long kernel;
- unsigned long user;
- unsigned long unit_mask;
-};
-
-/* System-wide configuration as set via oprofilefs. */
-struct op_system_config {
- unsigned long enable_kernel;
- unsigned long enable_user;
-};
-
-/* Per-arch configuration */
-struct op_bfin533_model {
- int (*reg_setup) (struct op_counter_config *);
- int (*start) (struct op_counter_config *);
- void (*stop) (void);
- int num_counters;
- char *name;
-};
-
-extern struct op_bfin533_model op_model_bfin533;
-
-static inline unsigned int ctr_read(void)
-{
- unsigned int tmp;
-
- tmp = bfin_read_PFCTL();
- CSYNC();
-
- return tmp;
-}
-
-static inline void ctr_write(unsigned int val)
-{
- bfin_write_PFCTL(val);
- CSYNC();
-}
-
-static inline void count_read(unsigned int *count)
-{
- count[0] = bfin_read_PFCNTR0();
- count[1] = bfin_read_PFCNTR1();
- CSYNC();
-}
-
-static inline void count_write(unsigned int *count)
-{
- bfin_write_PFCNTR0(count[0]);
- bfin_write_PFCNTR1(count[1]);
- CSYNC();
-}
-
-extern int pm_overflow_handler(struct pt_regs *regs);
-
-#endif
+++ /dev/null
-/*
- * File: arch/blackfin/oprofile/op_model_bf533.c
- * Based on:
- * Author: Anton Blanchard <anton@au.ibm.com>
- *
- * Created:
- * Description:
- *
- * Modified:
- * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
- * Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <linux/oprofile.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/ptrace.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/blackfin.h>
-
-#include "op_blackfin.h"
-
-#define PM_ENABLE 0x01;
-#define PM_CTL1_ENABLE 0x18
-#define PM_CTL0_ENABLE 0xC000
-#define COUNT_EDGE_ONLY 0x3000000
-
-static int oprofile_running;
-
-static unsigned curr_pfctl, curr_count[2];
-
-static int bfin533_reg_setup(struct op_counter_config *ctr)
-{
- unsigned int pfctl = 0;
- unsigned int count[2];
-
- /* set Blackfin perf monitor regs with ctr */
- if (ctr[0].enabled) {
- pfctl |= (PM_CTL0_ENABLE | ((char)ctr[0].event << 5));
- count[0] = 0xFFFFFFFF - ctr[0].count;
- curr_count[0] = count[0];
- }
- if (ctr[1].enabled) {
- pfctl |= (PM_CTL1_ENABLE | ((char)ctr[1].event << 16));
- count[1] = 0xFFFFFFFF - ctr[1].count;
- curr_count[1] = count[1];
- }
-
- pr_debug("ctr[0].enabled=%d,ctr[1].enabled=%d,ctr[0].event<<5=0x%x,ctr[1].event<<16=0x%x\n", ctr[0].enabled, ctr[1].enabled, ctr[0].event << 5, ctr[1].event << 16);
- pfctl |= COUNT_EDGE_ONLY;
- curr_pfctl = pfctl;
-
- pr_debug("write 0x%x to pfctl\n", pfctl);
- ctr_write(pfctl);
- count_write(count);
-
- return 0;
-}
-
-static int bfin533_start(struct op_counter_config *ctr)
-{
- unsigned int pfctl = ctr_read();
-
- pfctl |= PM_ENABLE;
- curr_pfctl = pfctl;
-
- ctr_write(pfctl);
-
- oprofile_running = 1;
- pr_debug("start oprofile counter \n");
-
- return 0;
-}
-
-static void bfin533_stop(void)
-{
- int pfctl;
-
- pfctl = ctr_read();
- pfctl &= ~PM_ENABLE;
- /* freeze counters */
- ctr_write(pfctl);
-
- oprofile_running = 0;
- pr_debug("stop oprofile counter \n");
-}
-
-static int get_kernel(void)
-{
- int ipend, is_kernel;
-
- ipend = bfin_read_IPEND();
-
- /* test bit 15 */
- is_kernel = ((ipend & 0x8000) != 0);
-
- return is_kernel;
-}
-
-int pm_overflow_handler(struct pt_regs *regs)
-{
- int is_kernel;
- int i, cpu;
- unsigned int pc, pfctl;
- unsigned int count[2];
-
- pr_debug("get interrupt in %s\n", __func__);
- if (oprofile_running == 0) {
- pr_debug("error: entering interrupt when oprofile is stopped.\n\r");
- return -1;
- }
-
- is_kernel = get_kernel();
- cpu = smp_processor_id();
- pc = regs->pc;
- pfctl = ctr_read();
-
- /* read the two event counter regs */
- count_read(count);
-
- /* if the counter overflows, add sample to oprofile buffer */
- for (i = 0; i < 2; ++i) {
- if (oprofile_running) {
- oprofile_add_sample(regs, i);
- }
- }
-
- /* reset the perfmon counter */
- ctr_write(curr_pfctl);
- count_write(curr_count);
- return 0;
-}
-
-struct op_bfin533_model op_model_bfin533 = {
- .reg_setup = bfin533_reg_setup,
- .start = bfin533_start,
- .stop = bfin533_stop,
- .num_counters = 2,
- .name = "blackfin/bf533"
-};
+++ /dev/null
-/*
- * File: arch/blackfin/oprofile/timer_int.c
- * Based on:
- * Author: Michael Kang
- *
- * Created:
- * Description:
- *
- * Modified:
- * Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/irq.h>
-#include <linux/oprofile.h>
-#include <linux/ptrace.h>
-
-static void enable_sys_timer0()
-{
-}
-static void disable_sys_timer0()
-{
-}
-
-static irqreturn_t sys_timer0_int_handler(int irq, void *dev_id,
- struct pt_regs *regs)
-{
- oprofile_add_sample(regs, 0);
- return IRQ_HANDLED;
-}
-
-static int sys_timer0_start(void)
-{
- enable_sys_timer0();
- return request_irq(IVG11, sys_timer0_int_handler, 0, "sys_timer0", NULL);
-}
-
-static void sys_timer0_stop(void)
-{
- disable_sys_timer();
-}
-
-int __init sys_timer0_init(struct oprofile_operations *ops)
-{
- extern int nmi_active;
-
- if (nmi_active <= 0)
- return -ENODEV;
-
- ops->start = timer_start;
- ops->stop = timer_stop;
- ops->cpu_type = "timer";
- printk(KERN_INFO "oprofile: using NMI timer interrupt.\n");
- return 0;
-}
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff