Throttle down cpu/gpu on maguro.

Makefile

@@ -256,8 +256,16 @@ config-galaxy-s2: config-gecko adb-check-version $(APNS_CONF)
 	./extract-files.sh && \
 	echo OK
 
+# Hack!  Upstream boot/msm is RO at the moment and forking isn't
+# a nice alternative at the moment...
+.patches.applied:
+	cd boot/msm && \
+	$(GIT) apply $(abspath glue/patch)/yaffs_vfs.patch && \
+	$(GIT) apply $(abspath glue/patch)/downscale_gpu.patch
+	touch $@
+
 .PHONY: config-maguro
-config-maguro: config-gecko adb-check-version $(APNS_CONF)
+config-maguro: .patches.applied config-gecko adb-check-version $(APNS_CONF)
 	@echo "KERNEL = msm" > .config.mk && \
         echo "KERNEL_PATH = ./boot/msm" >> .config.mk && \
 	echo "GONK = maguro" >> .config.mk && \
@@ -267,14 +275,8 @@ config-maguro: config-gecko adb-check-version $(APNS_CONF)
 	./extract-files.sh && \
 	echo OK
 
-# Hack!  Upstream boot/msm is RO at the moment and forking isn't
-# a nice alternative at the moment...
-.patches.applied:
-	cd boot/msm && $(GIT) apply $(abspath glue/patch)/yaffs_vfs.patch
-	touch $@
-
 .PHONY: config-akami
-config-akami: .patches.applied config-gecko $(APNS_CONF)
+config-akami: .patches.applied config-gecko adb-check-version $(APNS_CONF)
 	@echo "KERNEL = msm" > .config.mk && \
         echo "KERNEL_PATH = ./boot/msm" >> .config.mk && \
 	echo "GONK = akami" >> .config.mk && \
@@ -711,7 +713,7 @@ op_setup:
 	  $(ADB) shell opcontrol --setup; \
 	  $(ADB) shell opcontrol --vmlinux=$(PWD)/$(KERNEL_DIR)/vmlinux; \
 	  $(ADB) shell opcontrol --kernel-range=0x`$(ADB) shell cat /proc/kallsyms | grep ' _text' | cut -c 1-8`,0x`$(ADB) shell cat /proc/kallsyms | grep ' _etext' | cut -c 1-8`; \
- 	  $(ADB) shell opcontrol --event=CPU_CYCLES & \
+	  $(ADB) shell opcontrol --event=CPU_CYCLES & \
 	else \
 	  $(ADB) shell opcontrol --vmlinux=$(PWD)/$(KERNEL_DIR)/vmlinux; \
 	  $(ADB) shell opcontrol --kernel-range=0x`$(ADB) shell cat /proc/kallsyms | grep ' _text' | cut -c 1-8`,0x`$(ADB) shell cat /proc/kallsyms | grep ' _etext' | cut -c 1-8`;\

glue/gonk/device/toro/maguro/rootdir/init.rc

@@ -71,6 +71,10 @@ loglevel 3
     write /proc/sys/kernel/sched_compat_yield 1
     write /proc/sys/kernel/sched_child_runs_first 0
 
+# XXX for development only
+    write /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq 600000
+    write /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq 600000
+
 # Create cgroup mount points for process groups
     mkdir /dev/cpuctl
     mount cgroup none /dev/cpuctl cpu

glue/patch/downscale_gpu.patch

@@ -0,0 +1,15 @@
+diff --git a/arch/arm/mach-msm/devices-msm7x27a.c b/arch/arm/mach-msm/devices-msm7x27a.c
+index 672c225..64212f5 100644
+--- a/arch/arm/mach-msm/devices-msm7x27a.c
++++ b/arch/arm/mach-msm/devices-msm7x27a.c
+@@ -622,8 +622,8 @@ static struct kgsl_device_platform_data kgsl_3d0_pdata = {
+ 	.pwr_data = {
+ 		.pwrlevel = {
+ 			{
+-				.gpu_freq = 245760000,
+-				.bus_freq = 200000000,
++				.gpu_freq = 133330000,
++				.bus_freq = 0,
+ 			},
+ 			{
+ 				.gpu_freq = 133330000,