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authorGraf Yang <graf.yang@analog.com>2009-01-07 23:14:39 +0800
committerBryan Wu <cooloney@kernel.org>2009-01-07 23:14:39 +0800
commit172e65e778ad500da26d59965750966e1ac7be51 (patch)
treecebbc5a924d190f69576657b1f5228087a1e7bea /arch/blackfin/oprofile/op_model_bf533.c
parente32f55d9dbffd2ca16e0bb4ea7156b56741b78cd (diff)
Blackfin arch: remove hardware PM code, oprofile not use it
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/oprofile/op_model_bf533.c')
-rw-r--r--arch/blackfin/oprofile/op_model_bf533.c161
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 0e34df169b2..00000000000
--- 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 = 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"
-};