Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 412c7fb6 authored by Vladimir Razgulin's avatar Vladimir Razgulin
Browse files

msm: kgsl: Split BMC code to a separate devfreq governor 



The existing devfreq governor_msm_adreno_tz supports both GPU DCVS and BMC
(Bus Modification Calculation) at the same time. This change splits BMC
code into a new governor_gpubw_mon.

Change-Id: Ie7162985e994aa5bed0fb41eb2741a811cf8bd56
Signed-off-by: default avatarVladimir Razgulin <vrazguli@codeaurora.org>
parent 286b0d28

Documentation/devicetree/bindings/gpu/adreno-busmon.txt

0 → 100644
+16 −0
Original line number Diff line number Diff line 
Adreno bus monitor device



kgsl-busmon is a psedo device that represents a devfreq bus bandwidth

governor. If this device is present then two different governors are used

for  GPU DCVS and bus DCVS.



Required properties:

- compatible:	Must be "qcom,kgsl-busmon"

- label:	Device name used for sysfs entry.



Example:



	qcom,kgsl-busmon {

		compatible = "qcom,kgsl-busmon";

		label = "kgsl-busmon";

	};

arch/arm/boot/dts/qcom/apq8084-gpu.dtsi

+5 −0
Original line number Diff line number Diff line
@@ -11,6 +11,11 @@ 
 */



&soc {

	msm_bus: qcom,kgsl-busmon{

		label = "kgsl-busmon";

		compatible = "qcom,kgsl-busmon";

	};



	msm_gpu: qcom,kgsl-3d0@fdb00000 {

		label = "kgsl-3d0";

		compatible = "qcom,kgsl-3d0", "qcom,kgsl-3d";

arch/arm/boot/dts/qcom/msm8994-gpu.dtsi

+5 −0
Original line number Diff line number Diff line
@@ -11,6 +11,11 @@ 
 */



&soc {

	msm_bus: qcom,kgsl-busmon{

		label = "kgsl-busmon";

		compatible = "qcom,kgsl-busmon";

	};



	msm_gpu: qcom,kgsl-3d0@fdb00000 {

		label = "kgsl-3d0";

		compatible = "qcom,kgsl-3d0", "qcom,kgsl-3d";

drivers/devfreq/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -97,6 +97,15 @@ config ARMBW_HWMON 
	  capability to raise an IRQ when the counter overflows, which can be

	  used to get an IRQ when the count exceeds a certain value



config DEVFREQ_GOV_MSM_GPUBW_MON

	tristate "GPU BW voting governor"

	depends on DEVFREQ_GOV_MSM_ADRENO_TZ

	help

	  MSM GPU governor for GPU bus bandwidth voting.

	  This governor works together with MSM Adreno Trustzone governor,

	  and select bus frequency votes using an "on-demand" alorithm..

	  This governor is unlikely to be useful for non-MSM devices.



config DEVFREQ_GOV_MSM_BW_HWMON

	tristate "HW monitor based governor for device BW"

	depends on ARCH_MSM_KRAIT || ARCH_MSM_BIMC_BWMON

drivers/devfreq/Makefile

+2 −0
Original line number Diff line number Diff line 
obj-$(CONFIG_PM_DEVFREQ)	+= devfreq.o

obj-$(CONFIG_PM_DEVFREQ)	+= devfreq_trace.o

obj-$(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)	+= governor_simpleondemand.o

obj-$(CONFIG_DEVFREQ_GOV_PERFORMANCE)	+= governor_performance.o

obj-$(CONFIG_DEVFREQ_GOV_POWERSAVE)	+= governor_powersave.o
@@ -11,6 +12,7 @@ obj-$(CONFIG_MSM_BIMC_BWMON) += bimc-bwmon.o 
obj-$(CONFIG_ARMBW_HWMON)		+= armbw-pm.o

obj-$(CONFIG_DEVFREQ_GOV_MSM_BW_HWMON)	+= governor_bw_hwmon.o

obj-$(CONFIG_DEVFREQ_GOV_MSM_CACHE_HWMON)	+= governor_cache_hwmon.o

obj-$(CONFIG_DEVFREQ_GOV_MSM_GPUBW_MON)	+= governor_gpubw_mon.o



# DEVFREQ Drivers

obj-$(CONFIG_ARM_EXYNOS4_BUS_DEVFREQ)	+= exynos4_bus.o