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| author | John Crispin <blogic@openwrt.org> | 2012-03-25 08:50:09 +0000 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2012-03-25 08:50:09 +0000 |
| commit | 62692a5350408bf5820e43b4d68150bf8ecac2d2 (patch) | |
| tree | fcbc09d1188b157091e186d10871e28abf340864 /target/linux/lantiq/patches-3.2/0017-MIPS-make-oprofile-use-cp0_perfcount_irq-if-it-is-se.patch | |
| parent | 617f57c20a853957f6aa15611fff52ef410fc055 (diff) | |
| download | master-187ad058-62692a5350408bf5820e43b4d68150bf8ecac2d2.tar.gz master-187ad058-62692a5350408bf5820e43b4d68150bf8ecac2d2.tar.bz2 master-187ad058-62692a5350408bf5820e43b4d68150bf8ecac2d2.zip | |
[lantiq] bump kernel to 3.2.12
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31060 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/lantiq/patches-3.2/0017-MIPS-make-oprofile-use-cp0_perfcount_irq-if-it-is-se.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.2/0017-MIPS-make-oprofile-use-cp0_perfcount_irq-if-it-is-se.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.2/0017-MIPS-make-oprofile-use-cp0_perfcount_irq-if-it-is-se.patch b/target/linux/lantiq/patches-3.2/0017-MIPS-make-oprofile-use-cp0_perfcount_irq-if-it-is-se.patch new file mode 100644 index 0000000000..a879cd8ba1 --- /dev/null +++ b/target/linux/lantiq/patches-3.2/0017-MIPS-make-oprofile-use-cp0_perfcount_irq-if-it-is-se.patch @@ -0,0 +1,55 @@ +From bc3a07e6c5149a82a22239a43e9f98514c2010d9 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Wed, 24 Aug 2011 13:24:11 +0200 +Subject: [PATCH 17/70] MIPS: make oprofile use cp0_perfcount_irq if it is set + +The patch makes the oprofile code use the performance counters irq. + +This patch is written by Felix Fietkau. + +Signed-off-by: Felix Fietkau <nbd@openwrt.org> +Signed-off-by: John Crispin <blogic@openwrt.org> +--- + arch/mips/oprofile/op_model_mipsxx.c | 12 ++++++++++++ + 1 files changed, 12 insertions(+), 0 deletions(-) + +diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c +index 54759f1..86cf234 100644 +--- 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); + +-- +1.7.7.1 + |