diff options
Diffstat (limited to 'arch/mips/oprofile')
| -rw-r--r-- | arch/mips/oprofile/common.c | 7 | ||||
| -rw-r--r-- | arch/mips/oprofile/op_model_loongson2.c | 9 |
2 files changed, 5 insertions, 11 deletions
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c index 7832ad257a14..f9eb1aba6345 100644 --- a/arch/mips/oprofile/common.c +++ b/arch/mips/oprofile/common.c @@ -6,6 +6,7 @@ * Copyright (C) 2004, 2005 Ralf Baechle * Copyright (C) 2005 MIPS Technologies, Inc. */ +#include <linux/compiler.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/oprofile.h> @@ -14,9 +15,9 @@ #include "op_impl.h" -extern struct op_mips_model op_model_mipsxx_ops __attribute__((weak)); -extern struct op_mips_model op_model_rm9000_ops __attribute__((weak)); -extern struct op_mips_model op_model_loongson2_ops __attribute__((weak)); +extern struct op_mips_model op_model_mipsxx_ops __weak; +extern struct op_mips_model op_model_rm9000_ops __weak; +extern struct op_mips_model op_model_loongson2_ops __weak; static struct op_mips_model *model; diff --git a/arch/mips/oprofile/op_model_loongson2.c b/arch/mips/oprofile/op_model_loongson2.c index 475ff46712ab..29e2326b6257 100644 --- a/arch/mips/oprofile/op_model_loongson2.c +++ b/arch/mips/oprofile/op_model_loongson2.c @@ -3,7 +3,7 @@ * * Copyright (C) 2009 Lemote Inc. * Author: Yanhua <yanh@lemote.com> - * Author: Wu Zhangjin <wuzj@lemote.com> + * Author: Wu Zhangjin <wuzhangjin@gmail.com> * * 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 @@ -47,8 +47,6 @@ static struct loongson2_register_config { int cnt1_enabled, cnt2_enabled; } reg; -DEFINE_SPINLOCK(sample_lock); - static char *oprofid = "LoongsonPerf"; static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id); /* Compute all of the registers in preparation for enabling profiling. */ @@ -115,7 +113,6 @@ 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; - unsigned long flags; /* * LOONGSON2 defines two 32-bit performance counters. @@ -136,8 +133,6 @@ static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id) counter1 = counter & 0xffffffff; counter2 = counter >> 32; - spin_lock_irqsave(&sample_lock, flags); - if (counter1 & LOONGSON2_PERFCNT_OVERFLOW) { if (reg.cnt1_enabled) oprofile_add_sample(regs, 0); @@ -149,8 +144,6 @@ static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id) counter2 = reg.reset_counter2; } - spin_unlock_irqrestore(&sample_lock, flags); - write_c0_perfcnt((counter2 << 32) | counter1); return IRQ_HANDLED; |