openwrtv3/target/linux/lantiq/patches-3.2/0017-MIPS-lantiq-enable-oprofile-support-on-lantiq-target.patch
Jonas Gorski ee4c47a134 kernel: update linux 3.2 to 3.2.15
SVN-Revision: 31335
2012-04-17 12:50:54 +00:00

46 lines
1.2 KiB
Diff

From 476a5cd7924926236c2356654da639fea90a8fea Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Wed, 24 Aug 2011 13:28:55 +0200
Subject: [PATCH 17/73] 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 <blogic@openwrt.org>
---
arch/mips/Kconfig | 1 +
arch/mips/lantiq/irq.c | 5 +++++
2 files changed, 6 insertions(+), 0 deletions(-)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -226,6 +226,7 @@ config LANTIQ
select SWAP_IO_SPACE
select BOOT_RAW
select HAVE_CLK
+ select HAVE_OPROFILE
select MIPS_MACHINE
config LASAT
--- 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
*/
@@ -318,6 +321,8 @@ 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)