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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>
This commit is contained in:
John Crispin 2012-05-02 12:27:37 +02:00 committed by Ralf Baechle
parent 16f70b561d
commit 59c1157984
1 changed files with 6 additions and 0 deletions
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6
arch/mips/lantiq/irq.c
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@ -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)