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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-17 16:38:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-17 16:38:06 -0800
commitdbfc985195410dad803c845743c63cd73bd1fe32 (patch)
tree6bf6dbecb92539285ebb89948e63e691a0947941 /arch/mips/oprofile/op_model_loongson2.c
parent7c508e50be47737b9a72d0f15c3ef1146925e2d2 (diff)
parent606d62fa02cf1da43c6e21521650fff07a2e56d1 (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (71 commits) MIPS: Lasat: Fix botched changes to sysctl code. RTC: rtc-cmos.c: Fix warning on MIPS MIPS: Cleanup random differences beween lmo and Linus' kernel. MIPS: No longer hardwire CONFIG_EMBEDDED to y MIPS: Fix and enhance built-in kernel command line MIPS: eXcite: Remove platform. MIPS: Loongson: Cleanups of serial port support MIPS: Lemote 2F: Suspend CS5536 MFGPT Timer MIPS: Excite: move iodev_remove to .devexit.text MIPS: Lasat: Convert to proc_fops / seq_file MIPS: Cleanup signal code initialization MIPS: Modularize COP2 handling MIPS: Move EARLY_PRINTK to Kconfig.debug MIPS: Yeeloong 2F: Cleanup reset logic using the new ec_write function MIPS: Yeeloong 2F: Add LID open event as the wakeup event MIPS: Yeeloong 2F: Add basic EC operations MIPS: Move several variables from .bss to .init.data MIPS: Tracing: Make function graph tracer work with -mmcount-ra-address MIPS: Tracing: Reserve $12(t0) for mcount-ra-address of gcc 4.5 MIPS: Tracing: Make ftrace for MIPS work without -fno-omit-frame-pointer ...
Diffstat (limited to 'arch/mips/oprofile/op_model_loongson2.c')
-rw-r--r--arch/mips/oprofile/op_model_loongson2.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/mips/oprofile/op_model_loongson2.c b/arch/mips/oprofile/op_model_loongson2.c
index 575cd147347..475ff46712a 100644
--- a/arch/mips/oprofile/op_model_loongson2.c
+++ b/arch/mips/oprofile/op_model_loongson2.c
@@ -1,7 +1,7 @@
/*
* Loongson2 performance counter driver for oprofile
*
- * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology
+ * Copyright (C) 2009 Lemote Inc.
* Author: Yanhua <yanh@lemote.com>
* Author: Wu Zhangjin <wuzj@lemote.com>
*
@@ -125,6 +125,9 @@ static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id)
*/
/* Check whether the irq belongs to me */
+ enabled = read_c0_perfcnt() & LOONGSON2_PERFCNT_INT_EN;
+ if (!enabled)
+ return IRQ_NONE;
enabled = reg.cnt1_enabled | reg.cnt2_enabled;
if (!enabled)
return IRQ_NONE;