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| author | Wu Zhangjin <wuzhangjin@gmail.com> | 2010-07-24 09:22:14 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-08-05 13:26:24 +0100 |
| commit | de3bc0e7ba5e89d63cb2dbac4e49a5c4b18669b5 (patch) | |
| tree | 16813f3d063da6c8d8fdbe47b574b4067d048579 /arch/mips/loongson | |
| parent | b8c7428af023c4cc37b8651e309713c1f4d9a18e (diff) | |
| download | lwn-de3bc0e7ba5e89d63cb2dbac4e49a5c4b18669b5.tar.gz lwn-de3bc0e7ba5e89d63cb2dbac4e49a5c4b18669b5.zip | |
MIPS: Loongson: Oprofile: add a new do_perfcnt_IRQ()
On FuLoong-2F IP6 is shared by the performance counter overflow interrupt
and the Bonito northbridge interrupt. To reduce overhead only call
do_IRQ() when oprofile is enabled 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@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1492/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/loongson')
| -rw-r--r-- | arch/mips/loongson/fuloong-2e/irq.c | 2 | ||||
| -rw-r--r-- | arch/mips/loongson/lemote-2f/irq.c | 4 |
2 files changed, 2 insertions, 4 deletions
diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c index 99e08c3db3f4..d61a04222b87 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 c6db7e7df963..71347d7030c5 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); |