diff options
| author | Wu Zhangjin <wuzhangjin@gmail.com> | 2010-07-23 21:22:14 -0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-08-05 08:26:24 -0400 |
| commit | de3bc0e7ba5e89d63cb2dbac4e49a5c4b18669b5 (patch) | |
| tree | 16813f3d063da6c8d8fdbe47b574b4067d048579 /arch/mips/loongson | |
| parent | b8c7428af023c4cc37b8651e309713c1f4d9a18e (diff) | |
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 99e08c3db3f..d61a04222b8 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) | |||
| 30 | if (pending & CAUSEF_IP7) | 30 | if (pending & CAUSEF_IP7) |
| 31 | do_IRQ(MIPS_CPU_IRQ_BASE + 7); | 31 | do_IRQ(MIPS_CPU_IRQ_BASE + 7); |
| 32 | else if (pending & CAUSEF_IP6) /* perf counter loverflow */ | 32 | else if (pending & CAUSEF_IP6) /* perf counter loverflow */ |
| 33 | do_IRQ(LOONGSON2_PERFCNT_IRQ); | 33 | do_perfcnt_IRQ(); |
| 34 | else if (pending & CAUSEF_IP5) | 34 | else if (pending & CAUSEF_IP5) |
| 35 | i8259_irqdispatch(); | 35 | i8259_irqdispatch(); |
| 36 | else if (pending & CAUSEF_IP2) | 36 | else if (pending & CAUSEF_IP2) |
diff --git a/arch/mips/loongson/lemote-2f/irq.c b/arch/mips/loongson/lemote-2f/irq.c index c6db7e7df96..71347d7030c 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) | |||
| 79 | if (pending & CAUSEF_IP7) | 79 | if (pending & CAUSEF_IP7) |
| 80 | do_IRQ(LOONGSON_TIMER_IRQ); | 80 | do_IRQ(LOONGSON_TIMER_IRQ); |
| 81 | else if (pending & CAUSEF_IP6) { /* North Bridge, Perf counter */ | 81 | else if (pending & CAUSEF_IP6) { /* North Bridge, Perf counter */ |
| 82 | #if defined(CONFIG_OPROFILE) || defined(CONFIG_OPROFILE_MODULE) | 82 | do_perfcnt_IRQ(); |
| 83 | do_IRQ(LOONGSON2_PERFCNT_IRQ); | ||
| 84 | #endif | ||
| 85 | bonito_irqdispatch(); | 83 | bonito_irqdispatch(); |
| 86 | } else if (pending & CAUSEF_IP3) /* CPU UART */ | 84 | } else if (pending & CAUSEF_IP3) /* CPU UART */ |
| 87 | do_IRQ(LOONGSON_UART_IRQ); | 85 | do_IRQ(LOONGSON_UART_IRQ); |