From 4a6b5278deced0bd79df1521df291fe744c260b5 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Wed, 24 Aug 2011 13:28:55 +0200 Subject: [PATCH 14/70] MIPS: lantiq: enable oprofile support on lantiq targets This patch sets the performance counters irq and HAVE_OPROFILE flag for Lantiq SoCs. Signed-off-by: John Crispin --- arch/mips/Kconfig | 1 + arch/mips/lantiq/irq.c | 5 +++++ 2 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 5ab6e89..8ad52f4 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -229,6 +229,7 @@ config LANTIQ select SWAP_IO_SPACE select BOOT_RAW select HAVE_CLK + select HAVE_OPROFILE select MIPS_MACHINE config LASAT diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c index f56bcce..ada3874 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 */ @@ -317,6 +320,8 @@ 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 + + cp0_perfcount_irq = LTQ_PERF_IRQ; } unsigned int __cpuinit get_c0_compare_int(void) -- 1.7.9.1