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kernel: fix oprofile performance counter interrupt handling on mips

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 46482
This commit is contained in:
Felix Fietkau 2015-07-24 15:36:02 +00:00
parent 5537698be1
commit bc0f9ad8ca
2 changed files with 74 additions and 1 deletions
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2
target/linux/ar71xx/patches-4.1/509-MIPS-ath79-process-board-kernel-option.patch
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@ -1,6 +1,6 @@
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -235,6 +235,8 @@ void __init plat_time_init(void)
@@ -236,6 +236,8 @@ void __init plat_time_init(void)
mips_hpt_frequency = cpu_clk_rate / 2;
}

73
target/linux/generic/patches-4.1/131-MIPS-export-get_c0_perfcount_int.patch Normal file
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@ -0,0 +1,73 @@
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 23 Jul 2015 18:54:49 +0200
Subject: [PATCH] MIPS: export get_c0_perfcount_int()
get_c0_perfcount_int is tested from oprofile code. If oprofile is
compiled as module, get_c0_perfcount_int needs to be exported, otherwise
it cannot be resolved.
Fixes: a669efc4a3b4 ("MIPS: Add hook to get C0 performance counter interrupt")
Cc: stable@vger.kernel.org # v3.19+
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -186,6 +186,7 @@ int get_c0_perfcount_int(void)
{
return ATH79_MISC_IRQ(5);
}
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
unsigned int get_c0_compare_int(void)
{
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -466,6 +466,7 @@ int get_c0_perfcount_int(void)
{
return ltq_perfcount_irq;
}
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
unsigned int get_c0_compare_int(void)
{
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -148,6 +148,7 @@ int get_c0_perfcount_int(void)
return mips_cpu_perf_irq;
}
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
unsigned int get_c0_compare_int(void)
{
--- a/arch/mips/mti-sead3/sead3-time.c
+++ b/arch/mips/mti-sead3/sead3-time.c
@@ -77,6 +77,7 @@ int get_c0_perfcount_int(void)
return MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
return -1;
}
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
unsigned int get_c0_compare_int(void)
{
--- a/arch/mips/pistachio/time.c
+++ b/arch/mips/pistachio/time.c
@@ -26,6 +26,7 @@ int get_c0_perfcount_int(void)
{
return gic_get_c0_perfcount_int();
}
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
void __init plat_time_init(void)
{
--- a/arch/mips/ralink/irq.c
+++ b/arch/mips/ralink/irq.c
@@ -89,6 +89,7 @@ int get_c0_perfcount_int(void)
{
return rt_perfcount_irq;
}
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
unsigned int get_c0_compare_int(void)
{