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>

1 files changed, 87 insertions, 0 deletions

diff --git a/meta-eas/recipes-kernel/linux/linux-renesas/0071-arm64-Add-Hikey-energy-model.patch b/meta-eas/recipes-kernel/linux/linux-renesas/0071-arm64-Add-Hikey-energy-model.patch
new file mode 100644
index 0000000..891ca92
--- /dev/null
+++ b/meta-eas/recipes-kernel/linux/linux-renesas/0071-arm64-Add-Hikey-energy-model.patch
@@ -0,0 +1,87 @@
+From 0eeb3c8bc2f3436b44096bd0659050ce301f49ae Mon Sep 17 00:00:00 2001
+From: Dietmar Eggemann <dietmar.eggemann@arm.com>
+Date: Tue, 16 Aug 2016 14:10:38 +0100
+Subject: [PATCH 71/92] arm64: Add Hikey energy model
+
+Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
+(cherry picked from commit 75751f967eca10b6cced89831efa39d28699ba37)
+Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
+---
+ arch/arm64/kernel/energy_model.h | 52 ++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 52 insertions(+)
+
+diff --git a/arch/arm64/kernel/energy_model.h b/arch/arm64/kernel/energy_model.h
+index 170dd84..a71c78d 100644
+--- a/arch/arm64/kernel/energy_model.h
++++ b/arch/arm64/kernel/energy_model.h
+@@ -107,6 +107,52 @@
+ 	  .cap_states     = cap_states_core_juno_a57,
+ };
+ 
++/* HiKey */
++
++static struct idle_state idle_states_cluster_hikey[] = {
++	{ .power = 107 }, /* arch_cpu_idle() (active idle) = WFI */
++	{ .power = 107 }, /* WFI */
++	{ .power =  47 }, /* cpu-sleep */
++	{ .power =   0 }, /* cluster-sleep */
++};
++
++static struct capacity_state cap_states_cluster_hikey[] = {
++	{ .cap =  178, .power =  16, }, /*  208 MHz */
++	{ .cap =  369, .power =  29, }, /*  432 MHz */
++	{ .cap =  622, .power =  47, }, /*  729 MHz */
++	{ .cap =  819, .power =  75, }, /*  960 MHz */
++	{ .cap = 1024, .power = 112, }, /* 1200 MHz */
++};
++
++static struct sched_group_energy energy_cluster_hikey = {
++	.nr_idle_states = ARRAY_SIZE(idle_states_cluster_hikey),
++	.idle_states    = idle_states_cluster_hikey,
++	.nr_cap_states  = ARRAY_SIZE(cap_states_cluster_hikey),
++	.cap_states     = cap_states_cluster_hikey,
++};
++
++static struct idle_state idle_states_core_hikey[] = {
++	{ .power = 15 }, /* arch_cpu_idle() (active idle) = WFI */
++	{ .power = 15 }, /* WFI */
++	{ .power =  0 }, /* cpu-sleep */
++	{ .power =  0 }, /* cluster-sleep */
++};
++
++static struct capacity_state cap_states_core_hikey[] = {
++	{ .cap =  178, .power =  69, }, /*  208 MHz */
++	{ .cap =  369, .power = 125, }, /*  432 MHz */
++	{ .cap =  622, .power = 224, }, /*  729 MHz */
++	{ .cap =  819, .power = 367, }, /*  960 MHz */
++	{ .cap = 1024, .power = 670, }, /* 1200 MHz */
++};
++
++static struct sched_group_energy energy_core_hikey = {
++	.nr_idle_states = ARRAY_SIZE(idle_states_core_hikey),
++	.idle_states    = idle_states_core_hikey,
++	.nr_cap_states  = ARRAY_SIZE(cap_states_core_hikey),
++	.cap_states     = cap_states_core_hikey,
++};
++
+ /* An energy model contains core and cluster sched group energy for 2
+  * clusters (cluster id 0 and 1). set_energy_model() relies on this
+  * feature. It is enforced by a BUG_ON in energy().
+@@ -122,8 +168,14 @@ struct energy_model {
+ 	{ &energy_cluster_juno_a57, &energy_cluster_juno_a53, },
+ };
+ 
++static struct energy_model hikey_model = {
++	{ &energy_core_hikey, &energy_core_hikey, },
++	{ &energy_cluster_hikey, &energy_cluster_hikey, },
++};
++
+ static struct of_device_id model_matches[] = {
+ 	{ .compatible = "arm,juno", .data = &juno_model },
++	{ .compatible = "hisilicon,hi6220-hikey", .data = &hikey_model },
+ 	{},
+ };
+ 
+-- 
+1.9.1
+