From: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
On FuLoong-2F platform, the IP6 is shared by the performance counter
overflow interrupt and the bonito northbridge interrupt, we only enable
the calling to do_IRQ() when the oprofile is enabled(Y|M) to reduce
overhead.
This patch adds an inline function do_perfcnt_IRQ() to hide the #if's ,
which can be shared by the other Loongson machines, i.e. gdium.
Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
---
arch/mips/include/asm/mach-loongson/loongson.h | 8 ++++++++
arch/mips/loongson/fuloong-2e/irq.c | 2 +-
arch/mips/loongson/lemote-2f/irq.c | 4 +---
3 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h
index ef81d9c..0781e1a 100644
--- a/arch/mips/include/asm/mach-loongson/loongson.h
+++ b/arch/mips/include/asm/mach-loongson/loongson.h
@@ -68,6 +68,14 @@ extern int mach_i8259_irq(void);
#define LOONGSON_IRQ_BASE 32
#define LOONGSON2_PERFCNT_IRQ (MIPS_CPU_IRQ_BASE + 6) /* cpu perf counter */
+#include <linux/interrupt.h>
+static inline void do_perfcnt_IRQ(void)
+{
+#if defined(CONFIG_OPROFILE) || defined(CONFIG_OPROFILE_MODULE)
+ do_IRQ(LOONGSON2_PERFCNT_IRQ);
+#endif
+}
+
#define LOONGSON_FLASH_BASE 0x1c000000
#define LOONGSON_FLASH_SIZE 0x02000000 /* 32M */
#define LOONGSON_FLASH_TOP (LOONGSON_FLASH_BASE+LOONGSON_FLASH_SIZE-1)
diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c
index 99e08c3..d61a042 100644
--- a/arch/mips/loongson/fuloong-2e/irq.c
+++ b/arch/mips/loongson/fuloong-2e/irq.c
@@ -30,7 +30,7 @@ asmlinkage void mach_irq_dispatch(unsigned int pending)
if (pending & CAUSEF_IP7)
do_IRQ(MIPS_CPU_IRQ_BASE + 7);
else if (pending & CAUSEF_IP6) /* perf counter loverflow */
- do_IRQ(LOONGSON2_PERFCNT_IRQ);
+ do_perfcnt_IRQ();
else if (pending & CAUSEF_IP5)
i8259_irqdispatch();
else if (pending & CAUSEF_IP2)
diff --git a/arch/mips/loongson/lemote-2f/irq.c b/arch/mips/loongson/lemote-2f/irq.c
index c6db7e7..71347d7 100644
--- a/arch/mips/loongson/lemote-2f/irq.c
+++ b/arch/mips/loongson/lemote-2f/irq.c
@@ -79,9 +79,7 @@ void mach_irq_dispatch(unsigned int pending)
if (pending & CAUSEF_IP7)
do_IRQ(LOONGSON_TIMER_IRQ);
else if (pending & CAUSEF_IP6) { /* North Bridge, Perf counter */
-#if defined(CONFIG_OPROFILE) || defined(CONFIG_OPROFILE_MODULE)
- do_IRQ(LOONGSON2_PERFCNT_IRQ);
-#endif
+ do_perfcnt_IRQ();
bonito_irqdispatch();
} else if (pending & CAUSEF_IP3) /* CPU UART */
do_IRQ(LOONGSON_UART_IRQ);
--
1.7.0.4
