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authorFrode Isaksen <fisaksen@baylibre.com>2017-12-19 11:15:35 +0000
committerJan-Simon Moeller <jsmoeller@linuxfoundation.org>2018-02-07 11:47:29 +0000
commitc4a6287185179732dfc1e903c195ff90c19f1065 (patch)
treed35f5010dbd952e40f5c178322026445b55757c1 /meta-eas/recipes-kernel/linux/linux-renesas/0025-fixup-arm-parse-cpu-capacity-dmips-mhz-from-DT.patch
parent109dea1d5c5a38807b098b588584636ae636a302 (diff)
This layer provides Energy Aware Scheduling (EAS) patcheseel_5.1.0eel_5.0.3eel_5.0.2eel/5.1.0eel/5.0.3eel/5.0.25.1.05.0.35.0.2eel
For the moment only for Renesas R-Car Gen3 SoC's. Can be expanded for other SoC's by setting the machine feature biglittle and provide the relevant EAS patches. Bug-AGL: SPEC-813 Change-Id: I2b5e69c515c33e57be19b30466fe208d7b8ac1a5 Signed-off-by: Frode Isaksen <fisaksen@baylibre.com>
Diffstat (limited to 'meta-eas/recipes-kernel/linux/linux-renesas/0025-fixup-arm-parse-cpu-capacity-dmips-mhz-from-DT.patch')
-rw-r--r--meta-eas/recipes-kernel/linux/linux-renesas/0025-fixup-arm-parse-cpu-capacity-dmips-mhz-from-DT.patch49
1 files changed, 49 insertions, 0 deletions
diff --git a/meta-eas/recipes-kernel/linux/linux-renesas/0025-fixup-arm-parse-cpu-capacity-dmips-mhz-from-DT.patch b/meta-eas/recipes-kernel/linux/linux-renesas/0025-fixup-arm-parse-cpu-capacity-dmips-mhz-from-DT.patch
new file mode 100644
index 0000000..84dea53
--- /dev/null
+++ b/meta-eas/recipes-kernel/linux/linux-renesas/0025-fixup-arm-parse-cpu-capacity-dmips-mhz-from-DT.patch
@@ -0,0 +1,49 @@
+From 2b32578a1c36deaddcbb61dc6a10a17356a0499f Mon Sep 17 00:00:00 2001
+From: Juri Lelli <juri.lelli@arm.com>
+Date: Wed, 31 Aug 2016 18:04:46 +0100
+Subject: [PATCH 25/92] fixup! arm: parse cpu capacity-dmips-mhz from DT
+
+(cherry picked from commit 55df048a3a8e4940c78f2a24e6e1766af18a7577)
+Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
+---
+ arch/arm/kernel/topology.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
+index b22868a..a26e787 100644
+--- a/arch/arm/kernel/topology.c
++++ b/arch/arm/kernel/topology.c
+@@ -143,6 +143,8 @@ static void normalize_cpu_capacity(void)
+ #ifdef CONFIG_CPU_FREQ
+ static cpumask_var_t cpus_to_visit;
+ static bool cap_parsing_done;
++static void parsing_done_workfn(struct work_struct *work);
++static DECLARE_WORK(parsing_done_work, parsing_done_workfn);
+
+ static int
+ init_cpu_capacity_callback(struct notifier_block *nb,
+@@ -173,6 +175,7 @@ static void normalize_cpu_capacity(void)
+ kfree(raw_capacity);
+ pr_debug("cpu_capacity: parsing done\n");
+ cap_parsing_done = true;
++ schedule_work(&parsing_done_work);
+ }
+ }
+ return 0;
+@@ -197,6 +200,13 @@ static int __init register_cpufreq_notifier(void)
+ CPUFREQ_POLICY_NOTIFIER);
+ }
+ core_initcall(register_cpufreq_notifier);
++
++static void parsing_done_workfn(struct work_struct *work)
++{
++ cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
++ CPUFREQ_POLICY_NOTIFIER);
++}
++
+ #else
+ static int __init free_raw_capacity(void)
+ {
+--
+1.9.1
+