2012-04-12 12:33:56 +00:00
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From 476a5cd7924926236c2356654da639fea90a8fea Mon Sep 17 00:00:00 2001
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2011-10-10 15:13:46 +00:00
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From: John Crispin <blogic@openwrt.org>
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Date: Wed, 24 Aug 2011 13:28:55 +0200
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2012-04-12 12:33:56 +00:00
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Subject: [PATCH 17/73] MIPS: lantiq: enable oprofile support on lantiq
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2012-03-25 08:50:09 +00:00
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targets
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2011-10-10 15:13:46 +00:00
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2012-03-25 08:50:09 +00:00
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This patch sets the performance counters irq and HAVE_OPROFILE flag for Lantiq
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SoCs.
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2011-10-10 15:13:46 +00:00
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Signed-off-by: John Crispin <blogic@openwrt.org>
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---
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arch/mips/Kconfig | 1 +
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arch/mips/lantiq/irq.c | 5 +++++
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2 files changed, 6 insertions(+), 0 deletions(-)
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--- a/arch/mips/Kconfig
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+++ b/arch/mips/Kconfig
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2012-03-25 08:50:09 +00:00
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@@ -226,6 +226,7 @@ config LANTIQ
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2011-10-10 15:13:46 +00:00
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select SWAP_IO_SPACE
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select BOOT_RAW
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select HAVE_CLK
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+ select HAVE_OPROFILE
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select MIPS_MACHINE
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config LASAT
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--- a/arch/mips/lantiq/irq.c
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+++ b/arch/mips/lantiq/irq.c
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@@ -40,6 +40,9 @@
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#define MAX_EIU 6
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+/* the performance counter */
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+#define LTQ_PERF_IRQ (INT_NUM_IM4_IRL0 + 31)
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+
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/* irqs generated by device attached to the EBU need to be acked in
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* a special manner
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*/
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@@ -318,6 +321,8 @@ void __init arch_init_irq(void)
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set_c0_status(IE_SW0 | IE_SW1 | IE_IRQ0 | IE_IRQ1 |
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IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5);
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#endif
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+
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+ cp0_perfcount_irq = LTQ_PERF_IRQ;
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}
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unsigned int __cpuinit get_c0_compare_int(void)
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