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ar71xx: fix oprofile support 

SVN-Revision: 20150
lede-17.01
Felix Fietkau 2010-03-11 18:48:57 +00:00
parent 2d305bdc23
commit 0849a208ce
5 changed files with 146 additions and 1 deletions
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2
target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
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@ -405,6 +405,8 @@ void __init arch_init_irq(void)
ar71xx_misc_irq_init();
cp0_perfcount_irq = AR71XX_MISC_IRQ_PERFC;
switch (ar71xx_soc) {
case AR71XX_SOC_AR7130:
case AR71XX_SOC_AR7141:

2
target/linux/ar71xx/patches-2.6.33/300-mips_fw_myloader.patch
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@ -1,6 +1,6 @@
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -188,6 +188,7 @@ endif
@@ -190,6 +190,7 @@ endif
#
libs-$(CONFIG_ARC) += arch/mips/fw/arc/
libs-$(CONFIG_CFE) += arch/mips/fw/cfe/

47
target/linux/generic-2.6/patches-2.6.32/208-mips_oprofile_fix.patch Normal file
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@ -0,0 +1,47 @@
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -48,7 +48,9 @@ ifneq ($(SUBARCH),$(ARCH))
endif
endif
+ifndef CONFIG_PROFILING
cflags-y := -ffunction-sections
+endif
cflags-y += $(call cc-option, -mno-check-zero-division)
ifdef CONFIG_32BIT
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -298,6 +298,11 @@ static void reset_counters(void *arg)
}
}
+static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id)
+{
+ return mipsxx_perfcount_handler();
+}
+
static int __init mipsxx_init(void)
{
int counters;
@@ -374,6 +379,10 @@ static int __init mipsxx_init(void)
save_perf_irq = perf_irq;
perf_irq = mipsxx_perfcount_handler;
+ if (cp0_perfcount_irq >= 0)
+ return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int,
+ IRQF_SHARED, "Perfcounter", save_perf_irq);
+
return 0;
}
@@ -381,6 +390,9 @@ static void mipsxx_exit(void)
{
int counters = op_model_mipsxx_ops.num_counters;
+ if (cp0_perfcount_irq >= 0)
+ free_irq(cp0_perfcount_irq, save_perf_irq);
+
counters = counters_per_cpu_to_total(counters);
on_each_cpu(reset_counters, (void *)(long)counters, 1);

48
target/linux/generic-2.6/patches-2.6.33/208-mips_oprofile_fix.patch Normal file
View File

@ -0,0 +1,48 @@
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -49,7 +49,9 @@ ifneq ($(SUBARCH),$(ARCH))
endif
ifndef CONFIG_FUNCTION_TRACER
-cflags-y := -ffunction-sections
+ ifndef CONFIG_PROFILING
+ cflags-y := -ffunction-sections
+ endif
endif
ifdef CONFIG_FUNCTION_GRAPH_TRACER
ifndef KBUILD_MCOUNT_RA_ADDRESS
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -298,6 +298,11 @@ static void reset_counters(void *arg)
}
}
+static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id)
+{
+ return mipsxx_perfcount_handler();
+}
+
static int __init mipsxx_init(void)
{
int counters;
@@ -374,6 +379,10 @@ static int __init mipsxx_init(void)
save_perf_irq = perf_irq;
perf_irq = mipsxx_perfcount_handler;
+ if (cp0_perfcount_irq >= 0)
+ return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int,
+ IRQF_SHARED, "Perfcounter", save_perf_irq);
+
return 0;
}
@@ -381,6 +390,9 @@ static void mipsxx_exit(void)
{
int counters = op_model_mipsxx_ops.num_counters;
+ if (cp0_perfcount_irq >= 0)
+ free_irq(cp0_perfcount_irq, save_perf_irq);
+
counters = counters_per_cpu_to_total(counters);
on_each_cpu(reset_counters, (void *)(long)counters, 1);

48
target/linux/generic-2.6/patches-2.6.34/208-mips_oprofile_fix.patch Normal file
View File

@ -0,0 +1,48 @@
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -49,7 +49,9 @@ ifneq ($(SUBARCH),$(ARCH))
endif
ifndef CONFIG_FUNCTION_TRACER
-cflags-y := -ffunction-sections
+ ifndef CONFIG_PROFILING
+ cflags-y := -ffunction-sections
+ endif
endif
ifdef CONFIG_FUNCTION_GRAPH_TRACER
ifndef KBUILD_MCOUNT_RA_ADDRESS
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -298,6 +298,11 @@ static void reset_counters(void *arg)
}
}
+static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id)
+{
+ return mipsxx_perfcount_handler();
+}
+
static int __init mipsxx_init(void)
{
int counters;
@@ -374,6 +379,10 @@ static int __init mipsxx_init(void)
save_perf_irq = perf_irq;
perf_irq = mipsxx_perfcount_handler;
+ if (cp0_perfcount_irq >= 0)
+ return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int,
+ IRQF_SHARED, "Perfcounter", save_perf_irq);
+
return 0;
}
@@ -381,6 +390,9 @@ static void mipsxx_exit(void)
{
int counters = op_model_mipsxx_ops.num_counters;
+ if (cp0_perfcount_irq >= 0)
+ free_irq(cp0_perfcount_irq, save_perf_irq);
+
counters = counters_per_cpu_to_total(counters);
on_each_cpu(reset_counters, (void *)(long)counters, 1);