diff options
author | Xinyu Chen <xinyu.chen@freescale.com> | 2012-07-25 16:54:33 +0800 |
---|---|---|
committer | Xinyu Chen <xinyu.chen@freescale.com> | 2012-07-25 16:54:33 +0800 |
commit | 10ca2f12149b8c3fde9af51da89736529892dc69 (patch) | |
tree | 1a5118db41796df0a40c20467f37542e957e87a0 /drivers/cpufreq | |
parent | 3fb99edfabe05a47803eba7f39109b5eb86e25df (diff) | |
parent | cf3095062b75f6e518c6ef8a25b47a5b2ced7668 (diff) |
Merge remote branch 'fsl-linux-sdk/imx_3.0.35' into imx_3.0.35_android
Conflicts:
arch/arm/configs/imx6_defconfig
arch/arm/configs/imx6_updater_defconfig
arch/arm/configs/imx6s_defconfig
arch/arm/include/asm/dma-mapping.h
arch/arm/kernel/smp.c
arch/arm/mach-mx6/Kconfig
arch/arm/mach-mx6/board-mx6dl_arm2.h
arch/arm/mach-mx6/board-mx6dl_sabresd.h
arch/arm/mach-mx6/board-mx6q_arm2.c
arch/arm/mach-mx6/board-mx6q_arm2.h
arch/arm/mach-mx6/board-mx6q_sabreauto.c
arch/arm/mach-mx6/board-mx6q_sabreauto.h
arch/arm/mach-mx6/board-mx6q_sabrelite.c
arch/arm/mach-mx6/board-mx6q_sabresd.c
arch/arm/mach-mx6/board-mx6q_sabresd.h
arch/arm/mach-mx6/board-mx6sl_arm2.c
arch/arm/mach-mx6/board-mx6sl_arm2.h
arch/arm/mach-mx6/board-mx6solo_sabreauto.h
arch/arm/mach-mx6/bus_freq.c
arch/arm/mach-mx6/clock.c
arch/arm/mach-mx6/clock_mx6sl.c
arch/arm/mach-mx6/cpu.c
arch/arm/mach-mx6/crm_regs.h
arch/arm/mach-mx6/devices-imx6q.h
arch/arm/mach-mx6/devices.c
arch/arm/mach-mx6/mx6_anatop_regulator.c
arch/arm/mach-mx6/pcie.c
arch/arm/mach-mx6/system.c
arch/arm/mm/dma-mapping.c
arch/arm/plat-mxc/devices/Makefile
arch/arm/plat-mxc/devices/platform-imx-dcp.c
arch/arm/plat-mxc/devices/platform-imx-ocotp.c
arch/arm/plat-mxc/devices/platform-imx-rngb.c
arch/arm/plat-mxc/devices/platform-mxc_hdmi.c
arch/arm/plat-mxc/include/mach/devices-common.h
arch/arm/plat-mxc/include/mach/esdhc.h
arch/arm/plat-mxc/include/mach/iomux-mx6dl.h
arch/arm/plat-mxc/include/mach/iomux-mx6q.h
arch/arm/plat-mxc/include/mach/memory.h
arch/arm/plat-mxc/include/mach/mx6.h
arch/arm/plat-mxc/include/mach/mxc_edid.h
arch/arm/plat-mxc/include/mach/mxc_hdmi.h
arch/arm/plat-mxc/system.c
drivers/Kconfig
drivers/char/hw_random/fsl-rngc.c
drivers/cpufreq/Makefile
drivers/cpufreq/cpufreq_interactive.c
drivers/crypto/Kconfig
drivers/crypto/caam/caamalg.c
drivers/crypto/caam/compat.h
drivers/crypto/caam/ctrl.c
drivers/crypto/caam/desc_constr.h
drivers/crypto/caam/intern.h
drivers/crypto/dcp.c
drivers/dma/pch_dma.c
drivers/input/keyboard/gpio_keys.c
drivers/input/touchscreen/egalax_ts.c
drivers/input/touchscreen/max11801_ts.c
drivers/media/video/mxc/capture/Kconfig
drivers/media/video/mxc/capture/adv7180.c
drivers/media/video/mxc/capture/ipu_csi_enc.c
drivers/media/video/mxc/capture/ipu_prp_vf_sdc.c
drivers/media/video/mxc/capture/ipu_prp_vf_sdc_bg.c
drivers/media/video/mxc/capture/mxc_v4l2_capture.c
drivers/media/video/mxc/capture/ov5640_mipi.c
drivers/media/video/mxc/output/mxc_vout.c
drivers/misc/Kconfig
drivers/misc/Makefile
drivers/mmc/card/block.c
drivers/mmc/core/mmc.c
drivers/mmc/host/mmci.c
drivers/mmc/host/sdhci-esdhc-imx.c
drivers/mmc/host/sdhci.c
drivers/mmc/host/sdhci.h
drivers/mxc/Kconfig
drivers/mxc/Makefile
drivers/mxc/asrc/mxc_asrc.c
drivers/mxc/gpu-viv/arch/XAQ2/hal/kernel/gc_hal_kernel_context.c
drivers/mxc/gpu-viv/arch/XAQ2/hal/kernel/gc_hal_kernel_hardware.c
drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel.c
drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel.h
drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_command.c
drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_event.c
drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal.h
drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_base.h
drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_options.h
drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c
drivers/mxc/ipu3/ipu_device.c
drivers/mxc/vpu/mxc_vpu.c
drivers/net/fec.c
drivers/net/wireless/Makefile
drivers/power/sabresd_battery.c
drivers/regulator/core.c
drivers/tty/serial/imx.c
drivers/usb/core/hub.c
drivers/usb/gadget/arcotg_udc.c
drivers/usb/gadget/fsl_updater.c
drivers/usb/gadget/inode.c
drivers/usb/host/ehci-hub.c
drivers/video/mxc/ldb.c
drivers/video/mxc/mipi_dsi.c
drivers/video/mxc/mxc_dispdrv.c
drivers/video/mxc/mxc_dispdrv.h
drivers/video/mxc/mxc_edid.c
drivers/video/mxc/mxc_elcdif_fb.c
drivers/video/mxc/mxc_ipuv3_fb.c
drivers/video/mxc/mxc_spdc_fb.c
drivers/video/mxc_hdmi.c
drivers/watchdog/imx2_wdt.c
fs/proc/base.c
include/linux/mmc/host.h
include/linux/mmc/sdhci.h
include/linux/mxc_v4l2.h
kernel/power/main.c
sound/soc/codecs/mxc_hdmi.c
sound/soc/codecs/mxc_spdif.c
sound/soc/codecs/wm8962.c
sound/soc/imx/Kconfig
sound/soc/imx/Makefile
sound/soc/imx/imx-cs42888.c
sound/soc/imx/imx-esai.c
sound/soc/imx/imx-wm8958.c
sound/soc/imx/imx-wm8962.c
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r-- | drivers/cpufreq/Makefile | 2 | ||||
-rw-r--r-- | drivers/cpufreq/cpufreq_interactive.c | 72 | ||||
-rw-r--r-- | drivers/cpufreq/powernow-k8.c | 30 |
3 files changed, 48 insertions, 56 deletions
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile index c044060a4b07..c371bb46d4c4 100644 --- a/drivers/cpufreq/Makefile +++ b/drivers/cpufreq/Makefile @@ -9,7 +9,7 @@ obj-$(CONFIG_CPU_FREQ_GOV_POWERSAVE) += cpufreq_powersave.o obj-$(CONFIG_CPU_FREQ_GOV_USERSPACE) += cpufreq_userspace.o obj-$(CONFIG_CPU_FREQ_GOV_ONDEMAND) += cpufreq_ondemand.o obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE) += cpufreq_conservative.o -obj-$(CONFIG_CPU_FREQ_GOV_INTERACTIVE) += cpufreq_interactive.o +obj-$(CONFIG_CPU_FREQ_GOV_INTERACTIVE) += cpufreq_interactive.o # CPUfreq cross-arch helpers obj-$(CONFIG_CPU_FREQ_TABLE) += freq_table.o diff --git a/drivers/cpufreq/cpufreq_interactive.c b/drivers/cpufreq/cpufreq_interactive.c index 2fc2f5f49e54..2db752c1d346 100644 --- a/drivers/cpufreq/cpufreq_interactive.c +++ b/drivers/cpufreq/cpufreq_interactive.c @@ -30,9 +30,6 @@ #include <linux/mutex.h> #include <linux/kernel_stat.h> -#define CREATE_TRACE_POINTS -#include <trace/events/cpufreq_interactive.h> - #include <asm/cputime.h> static atomic_t active_count = ATOMIC_INIT(0); @@ -44,8 +41,8 @@ struct cpufreq_interactive_cpuinfo { u64 idle_exit_time; u64 timer_run_time; int idling; - u64 target_set_time; - u64 target_set_time_in_idle; + u64 freq_change_time; + u64 freq_change_time_in_idle; struct cpufreq_policy *policy; struct cpufreq_frequency_table *freq_table; unsigned int target_freq; @@ -136,7 +133,6 @@ static bool cpufreq_interactive_check_irq(void) return val; } - static void cpufreq_interactive_timer(unsigned long data) { unsigned int delta_idle; @@ -192,9 +188,9 @@ static void cpufreq_interactive_timer(unsigned long data) cpu_load = 100 * (delta_time - delta_idle) / delta_time; delta_idle = (unsigned int) cputime64_sub(now_idle, - pcpu->target_set_time_in_idle); + pcpu->freq_change_time_in_idle); delta_time = (unsigned int) cputime64_sub(pcpu->timer_run_time, - pcpu->target_set_time); + pcpu->freq_change_time); if ((delta_time == 0) || (delta_idle > delta_time)) load_since_change = 0; @@ -212,18 +208,14 @@ static void cpufreq_interactive_timer(unsigned long data) irq_load = cpufreq_interactive_check_irq(); if (cpu_load >= go_hispeed_load || irq_load) { - if (pcpu->policy->cur == pcpu->policy->min) { + if (pcpu->policy->cur == pcpu->policy->min) new_freq = hispeed_freq; - } else { + else new_freq = pcpu->policy->max * cpu_load / 100; - - if (new_freq < hispeed_freq) - new_freq = hispeed_freq; - } if (irq_load) new_freq = hispeed_freq; } else { - new_freq = pcpu->policy->max * cpu_load / 100; + new_freq = pcpu->policy->cur * cpu_load / 100; } if (cpufreq_frequency_table_target(pcpu->policy, pcpu->freq_table, @@ -235,32 +227,19 @@ static void cpufreq_interactive_timer(unsigned long data) } new_freq = pcpu->freq_table[index].frequency; + if (pcpu->target_freq == new_freq) + goto rearm_if_notmax; /* * Do not scale down unless we have been at this frequency for the * minimum sample time. */ if (new_freq < pcpu->target_freq) { - if (cputime64_sub(pcpu->timer_run_time, pcpu->target_set_time) - < min_sample_time) { - trace_cpufreq_interactive_notyet(data, cpu_load, - pcpu->target_freq, new_freq); + if (cputime64_sub(pcpu->timer_run_time, pcpu->freq_change_time) + < min_sample_time) goto rearm; - } - } - - pcpu->target_set_time_in_idle = now_idle; - pcpu->target_set_time = pcpu->timer_run_time; - - if (pcpu->target_freq == new_freq) { - trace_cpufreq_interactive_already(data, cpu_load, - pcpu->target_freq, new_freq); - goto rearm_if_notmax; } - trace_cpufreq_interactive_target(data, cpu_load, pcpu->target_freq, - new_freq); - if (new_freq < pcpu->target_freq) { pcpu->target_freq = new_freq; spin_lock_irqsave(&down_cpumask_lock, flags); @@ -315,11 +294,10 @@ static void cpufreq_interactive_idle_start(void) &per_cpu(cpuinfo, smp_processor_id()); int pending; - if (!pcpu->governor_enabled) - return; - pcpu->idling = 1; smp_wmb(); + if (!pcpu->governor_enabled) + return; pending = timer_pending(&pcpu->cpu_timer); if (pcpu->target_freq != pcpu->policy->min) { @@ -432,18 +410,18 @@ static int cpufreq_interactive_up_task(void *data) for_each_online_cpu(j) { struct cpufreq_interactive_cpuinfo *pjcpu = &per_cpu(cpuinfo, j); - if (pjcpu->target_freq > max_freq) max_freq = pjcpu->target_freq; } - if (max_freq != pcpu->policy->cur) __cpufreq_driver_target(pcpu->policy, max_freq, CPUFREQ_RELATION_H); mutex_unlock(&set_speed_lock); - trace_cpufreq_interactive_up(cpu, pcpu->target_freq, - pcpu->policy->cur); + + pcpu->freq_change_time_in_idle = + get_cpu_idle_time_us(cpu, + &pcpu->freq_change_time); } } @@ -485,8 +463,9 @@ static void cpufreq_interactive_freq_down(struct work_struct *work) CPUFREQ_RELATION_H); mutex_unlock(&set_speed_lock); - trace_cpufreq_interactive_down(cpu, pcpu->target_freq, - pcpu->policy->cur); + pcpu->freq_change_time_in_idle = + get_cpu_idle_time_us(cpu, + &pcpu->freq_change_time); } } @@ -580,6 +559,7 @@ static ssize_t store_timer_rate(struct kobject *kobj, static struct global_attr timer_rate_attr = __ATTR(timer_rate, 0644, show_timer_rate, store_timer_rate); + static ssize_t show_irq_param(struct kobject *kobj, struct attribute *attr, char *buf) { @@ -656,11 +636,15 @@ static int cpufreq_governor_interactive(struct cpufreq_policy *policy, for_each_cpu(j, policy->cpus) { pcpu = &per_cpu(cpuinfo, j); pcpu->policy = policy; - pcpu->target_freq = policy->cur; + if (pcpu->idling) + pcpu->target_freq = policy->min; + else + pcpu->target_freq = policy->cur; + pcpu->freq_table = freq_table; - pcpu->target_set_time_in_idle = + pcpu->freq_change_time_in_idle = get_cpu_idle_time_us(j, - &pcpu->target_set_time); + &pcpu->freq_change_time); pcpu->governor_enabled = 1; smp_wmb(); } diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index bce576d7478e..ad683ec2c57e 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -54,6 +54,9 @@ static DEFINE_PER_CPU(struct powernow_k8_data *, powernow_data); static int cpu_family = CPU_OPTERON; +/* array to map SW pstate number to acpi state */ +static u32 ps_to_as[8]; + /* core performance boost */ static bool cpb_capable, cpb_enabled; static struct msr __percpu *msrs; @@ -80,9 +83,9 @@ static u32 find_khz_freq_from_fid(u32 fid) } static u32 find_khz_freq_from_pstate(struct cpufreq_frequency_table *data, - u32 pstate) + u32 pstate) { - return data[pstate].frequency; + return data[ps_to_as[pstate]].frequency; } /* Return the vco fid for an input fid @@ -926,23 +929,27 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data, invalidate_entry(powernow_table, i); continue; } - rdmsr(MSR_PSTATE_DEF_BASE + index, lo, hi); - if (!(hi & HW_PSTATE_VALID_MASK)) { - pr_debug("invalid pstate %d, ignoring\n", index); - invalidate_entry(powernow_table, i); - continue; - } - powernow_table[i].index = index; + ps_to_as[index] = i; /* Frequency may be rounded for these */ if ((boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model < 10) || boot_cpu_data.x86 == 0x11) { + + rdmsr(MSR_PSTATE_DEF_BASE + index, lo, hi); + if (!(hi & HW_PSTATE_VALID_MASK)) { + pr_debug("invalid pstate %d, ignoring\n", index); + invalidate_entry(powernow_table, i); + continue; + } + powernow_table[i].frequency = freq_from_fid_did(lo & 0x3f, (lo >> 6) & 7); } else powernow_table[i].frequency = data->acpi_data.states[i].core_frequency * 1000; + + powernow_table[i].index = index; } return 0; } @@ -1189,7 +1196,8 @@ static int powernowk8_target(struct cpufreq_policy *pol, powernow_k8_acpi_pst_values(data, newstate); if (cpu_family == CPU_HW_PSTATE) - ret = transition_frequency_pstate(data, newstate); + ret = transition_frequency_pstate(data, + data->powernow_table[newstate].index); else ret = transition_frequency_fidvid(data, newstate); if (ret) { @@ -1202,7 +1210,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, if (cpu_family == CPU_HW_PSTATE) pol->cur = find_khz_freq_from_pstate(data->powernow_table, - newstate); + data->powernow_table[newstate].index); else pol->cur = find_khz_freq_from_fid(data->currfid); ret = 0; |