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openwrt-xburst/target/linux/lantiq/patches-3.2/0018-MIPS-lantiq-enable-oprofile-support-on-lantiq-target.patch
jogo f21c103e5a kernel: update linux 3.2 to 3.2.13 and refresh patches
Also remove a duplicate patch from lantiq (already in generic).

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31158 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-04-01 07:56:55 +00:00

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1.2 KiB
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From e0bd3f1b16fbce1f0f7900a0dd624f9dc8a47f78 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Wed, 24 Aug 2011 13:28:55 +0200
Subject: [PATCH 18/70] 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 <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)