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| author | John Crispin <blogic@openwrt.org> | 2012-05-02 14:27:37 +0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2012-05-15 19:49:21 +0400 |
| commit | 59c115798430f644b43123250ae4e1d820c3c18d (patch) | |
| tree | 37cd97303ee4e8315bd04e176d00aa1a32ffa902 /arch/mips/lantiq/irq.c | |
| parent | 16f70b561dd897dc324b726ebc94e0c87db26f61 (diff) | |
| download | linux-59c115798430f644b43123250ae4e1d820c3c18d.tar.xz | |
MIPS: lantiq: enable oprofile support on lantiq targets
This patch sets the performance counters irq on Lantiq SoCs.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3720/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/lantiq/irq.c')
| -rw-r--r-- | arch/mips/lantiq/irq.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c index b6b1c7260c5c..bfd4ad180aac 100644 --- a/arch/mips/lantiq/irq.c +++ b/arch/mips/lantiq/irq.c @@ -40,6 +40,9 @@ #define MAX_EIU 6 +/* the performance counter */ +#define LTQ_PERF_IRQ (INT_NUM_IM4_IRL0 + 31) + /* irqs generated by device attached to the EBU need to be acked in * a special manner */ @@ -316,6 +319,9 @@ void __init arch_init_irq(void) set_c0_status(IE_SW0 | IE_SW1 | IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5); #endif + + /* tell oprofile which irq to use */ + cp0_perfcount_irq = LTQ_PERF_IRQ; } unsigned int __cpuinit get_c0_compare_int(void) |