diff options
Diffstat (limited to 'arch/blackfin/oprofile/op_model_bf533.c')
| -rw-r--r-- | arch/blackfin/oprofile/op_model_bf533.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/arch/blackfin/oprofile/op_model_bf533.c b/arch/blackfin/oprofile/op_model_bf533.c deleted file mode 100644 index d1c698bb9ee5..000000000000 --- a/arch/blackfin/oprofile/op_model_bf533.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * 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 = ctr_read(); - 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(int irq, 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" -}; |