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cpufreq: Notify all policy->cpus in cpufreq_notify_transition() 

policy->cpus contains all online cpus that have single shared clock line. And
their frequencies are always updated together.

Many SMP system's cpufreq drivers take care of this in individual drivers but
the best place for this code is in cpufreq core.

This patch modifies cpufreq_notify_transition() to notify frequency change for
all cpus in policy->cpus and hence updates all users of this API.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
hifive-unleashed-5.1
Viresh Kumar 2013-03-24 11:56:43 +05:30 committed by Rafael J. Wysocki
parent fd143b4d6f
commit b43a7ffbf3
51 changed files with 241 additions and 343 deletions
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5
arch/arm/mach-davinci/cpufreq.c
View File

@ -90,7 +90,6 @@ static int davinci_target(struct cpufreq_policy *policy,
freqs.old = davinci_getspeed(0);
freqs.new = clk_round_rate(armclk, target_freq * 1000) / 1000;
freqs.cpu = 0;
if (freqs.old == freqs.new)
return ret;
@ -102,7 +101,7 @@ static int davinci_target(struct cpufreq_policy *policy,
if (ret)
return -EINVAL;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* if moving to higher frequency, up the voltage beforehand */
if (pdata->set_voltage && freqs.new > freqs.old) {
@ -126,7 +125,7 @@ static int davinci_target(struct cpufreq_policy *policy,
pdata->set_voltage(idx);
out:
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}

5
arch/arm/mach-imx/cpufreq.c
View File

@ -87,13 +87,12 @@ static int mxc_set_target(struct cpufreq_policy *policy,
freqs.old = clk_get_rate(cpu_clk) / 1000;
freqs.new = freq_Hz / 1000;
freqs.cpu = 0;
freqs.flags = 0;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
ret = set_cpu_freq(freq_Hz);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}

6
arch/arm/mach-integrator/cpu.c
View File

@ -123,14 +123,12 @@ static int integrator_set_target(struct cpufreq_policy *policy,
vco = icst_hz_to_vco(&cclk_params, target_freq * 1000);
freqs.new = icst_hz(&cclk_params, vco) / 1000;
freqs.cpu = policy->cpu;
if (freqs.old == freqs.new) {
set_cpus_allowed(current, cpus_allowed);
return 0;
}
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
cm_osc = __raw_readl(CM_OSC);
@ -151,7 +149,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
*/
set_cpus_allowed(current, cpus_allowed);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

5
arch/arm/mach-pxa/cpufreq-pxa2xx.c
View File

@ -311,7 +311,6 @@ static int pxa_set_target(struct cpufreq_policy *policy,
new_freq_mem = pxa_freq_settings[idx].membus;
freqs.old = policy->cur;
freqs.new = new_freq_cpu;
freqs.cpu = policy->cpu;
if (freq_debug)
pr_debug("Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
@ -327,7 +326,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
* you should add a notify client with any platform specific
* Vcc changing capability
*/
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Calculate the next MDREFR. If we're slowing down the SDRAM clock
* we need to preset the smaller DRI before the change. If we're
@ -382,7 +381,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
* you should add a notify client with any platform specific
* SDRAM refresh timer adjustments
*/
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
/*
* Even if voltage setting fails, we don't report it, as the frequency

5
arch/arm/mach-pxa/cpufreq-pxa3xx.c
View File

@ -184,7 +184,6 @@ static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy,
freqs.old = policy->cur;
freqs.new = next->cpufreq_mhz * 1000;
freqs.cpu = policy->cpu;
pr_debug("CPU frequency from %d MHz to %d MHz%s\n",
freqs.old / 1000, freqs.new / 1000,
@ -193,14 +192,14 @@ static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy,
if (freqs.old == target_freq)
return 0;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
local_irq_save(flags);
__update_core_freq(next);
__update_bus_freq(next);
local_irq_restore(flags);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

8
arch/arm/mach-s3c24xx/cpufreq.c
View File

@ -204,7 +204,6 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy,
freqs.old = cpu_cur.freq;
freqs.new = cpu_new.freq;
freqs.freqs.cpu = 0;
freqs.freqs.old = cpu_cur.freq.armclk / 1000;
freqs.freqs.new = cpu_new.freq.armclk / 1000;
@ -218,9 +217,7 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy,
s3c_cpufreq_updateclk(clk_pclk, cpu_new.freq.pclk);
/* start the frequency change */
if (policy)
cpufreq_notify_transition(&freqs.freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs.freqs, CPUFREQ_PRECHANGE);
/* If hclk is staying the same, then we do not need to
* re-write the IO or the refresh timings whilst we are changing
@ -264,8 +261,7 @@ static int s3c_cpufreq_settarget(struct cpufreq_policy *policy,
local_irq_restore(flags);
/* notify everyone we've done this */
if (policy)
cpufreq_notify_transition(&freqs.freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs.freqs, CPUFREQ_POSTCHANGE);
s3c_freq_dbg("%s: finished\n", __func__);
return 0;

5
arch/arm/mach-sa1100/cpu-sa1100.c
View File

@ -201,9 +201,8 @@ static int sa1100_target(struct cpufreq_policy *policy,
freqs.old = cur;
freqs.new = sa11x0_ppcr_to_freq(new_ppcr);
freqs.cpu = 0;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (freqs.new > cur)
sa1100_update_dram_timings(cur, freqs.new);
@ -213,7 +212,7 @@ static int sa1100_target(struct cpufreq_policy *policy,
if (freqs.new < cur)
sa1100_update_dram_timings(cur, freqs.new);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

5
arch/arm/mach-sa1100/cpu-sa1110.c
View File

@ -258,7 +258,6 @@ static int sa1110_target(struct cpufreq_policy *policy,
freqs.old = sa11x0_getspeed(0);
freqs.new = sa11x0_ppcr_to_freq(ppcr);
freqs.cpu = 0;
sdram_calculate_timing(&sd, freqs.new, sdram);
@ -279,7 +278,7 @@ static int sa1110_target(struct cpufreq_policy *policy,
sd.mdcas[2] = 0xaaaaaaaa;
#endif
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/*
* The clock could be going away for some time. Set the SDRAMs
@ -327,7 +326,7 @@ static int sa1110_target(struct cpufreq_policy *policy,
*/
sdram_update_refresh(freqs.new, sdram);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

15
arch/arm/mach-tegra/cpu-tegra.c
View File

@ -106,7 +106,8 @@ out:
return ret;
}
static int tegra_update_cpu_speed(unsigned long rate)
static int tegra_update_cpu_speed(struct cpufreq_policy *policy,
unsigned long rate)
{
int ret = 0;
struct cpufreq_freqs freqs;
@ -128,8 +129,7 @@ static int tegra_update_cpu_speed(unsigned long rate)
else
clk_set_rate(emc_clk, 100000000); /* emc 50Mhz */
for_each_online_cpu(freqs.cpu)
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
#ifdef CONFIG_CPU_FREQ_DEBUG
printk(KERN_DEBUG "cpufreq-tegra: transition: %u --> %u\n",
@ -143,8 +143,7 @@ static int tegra_update_cpu_speed(unsigned long rate)
return ret;
}
for_each_online_cpu(freqs.cpu)
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
@ -181,7 +180,7 @@ static int tegra_target(struct cpufreq_policy *policy,
target_cpu_speed[policy->cpu] = freq;
ret = tegra_update_cpu_speed(tegra_cpu_highest_speed());
ret = tegra_update_cpu_speed(policy, tegra_cpu_highest_speed());
out:
mutex_unlock(&tegra_cpu_lock);
@ -193,10 +192,12 @@ static int tegra_pm_notify(struct notifier_block *nb, unsigned long event,
{
mutex_lock(&tegra_cpu_lock);
if (event == PM_SUSPEND_PREPARE) {
struct cpufreq_policy *policy = cpufreq_cpu_get(0);
is_suspended = true;
pr_info("Tegra cpufreq suspend: setting frequency to %d kHz\n",
freq_table[0].frequency);
tegra_update_cpu_speed(freq_table[0].frequency);
tegra_update_cpu_speed(policy, freq_table[0].frequency);
cpufreq_cpu_put(policy);
} else if (event == PM_POST_SUSPEND) {
is_suspended = false;
}

5
arch/avr32/mach-at32ap/cpufreq.c
View File

@ -61,7 +61,6 @@ static int at32_set_target(struct cpufreq_policy *policy,
freqs.old = at32_get_speed(0);
freqs.new = (freq + 500) / 1000;
freqs.cpu = 0;
freqs.flags = 0;
if (!ref_freq) {
@ -69,7 +68,7 @@ static int at32_set_target(struct cpufreq_policy *policy,
loops_per_jiffy_ref = boot_cpu_data.loops_per_jiffy;
}
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (freqs.old < freqs.new)
boot_cpu_data.loops_per_jiffy = cpufreq_scale(
loops_per_jiffy_ref, ref_freq, freqs.new);
@ -77,7 +76,7 @@ static int at32_set_target(struct cpufreq_policy *policy,
if (freqs.new < freqs.old)
boot_cpu_data.loops_per_jiffy = cpufreq_scale(
loops_per_jiffy_ref, ref_freq, freqs.new);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("cpufreq: set frequency %lu Hz\n", freq);

85
arch/blackfin/mach-common/cpufreq.c
View File

@ -127,13 +127,13 @@ unsigned long cpu_set_cclk(int cpu, unsigned long new)
}
#endif
static int bfin_target(struct cpufreq_policy *poli,
static int bfin_target(struct cpufreq_policy *policy,
unsigned int target_freq, unsigned int relation)
{
#ifndef CONFIG_BF60x
unsigned int plldiv;
#endif
unsigned int index, cpu;
unsigned int index;
unsigned long cclk_hz;
struct cpufreq_freqs freqs;
static unsigned long lpj_ref;
@ -144,59 +144,48 @@ static int bfin_target(struct cpufreq_policy *poli,
cycles_t cycles;
#endif
for_each_online_cpu(cpu) {
struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
if (cpufreq_frequency_table_target(policy, bfin_freq_table, target_freq,
relation, &index))
return -EINVAL;
if (!policy)
continue;
cclk_hz = bfin_freq_table[index].frequency;
if (cpufreq_frequency_table_target(policy, bfin_freq_table,
target_freq, relation, &index))
return -EINVAL;
freqs.old = bfin_getfreq_khz(0);
freqs.new = cclk_hz;
cclk_hz = bfin_freq_table[index].frequency;
pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n",
cclk_hz, target_freq, freqs.old);
freqs.old = bfin_getfreq_khz(0);
freqs.new = cclk_hz;
freqs.cpu = cpu;
pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n",
cclk_hz, target_freq, freqs.old);
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
if (cpu == CPUFREQ_CPU) {
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
#ifndef CONFIG_BF60x
plldiv = (bfin_read_PLL_DIV() & SSEL) |
dpm_state_table[index].csel;
bfin_write_PLL_DIV(plldiv);
plldiv = (bfin_read_PLL_DIV() & SSEL) | dpm_state_table[index].csel;
bfin_write_PLL_DIV(plldiv);
#else
ret = cpu_set_cclk(cpu, freqs.new * 1000);
if (ret != 0) {
WARN_ONCE(ret, "cpufreq set freq failed %d\n", ret);
break;
}
#endif
on_each_cpu(bfin_adjust_core_timer, &index, 1);
#if defined(CONFIG_CYCLES_CLOCKSOURCE)
cycles = get_cycles();
SSYNC();
cycles += 10; /* ~10 cycles we lose after get_cycles() */
__bfin_cycles_off +=
(cycles << __bfin_cycles_mod) - (cycles << index);
__bfin_cycles_mod = index;
#endif
if (!lpj_ref_freq) {
lpj_ref = loops_per_jiffy;
lpj_ref_freq = freqs.old;
}
if (freqs.new != freqs.old) {
loops_per_jiffy = cpufreq_scale(lpj_ref,
lpj_ref_freq, freqs.new);
}
}
/* TODO: just test case for cycles clock source, remove later */
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
ret = cpu_set_cclk(policy->cpu, freqs.new * 1000);
if (ret != 0) {
WARN_ONCE(ret, "cpufreq set freq failed %d\n", ret);
return ret;
}
#endif
on_each_cpu(bfin_adjust_core_timer, &index, 1);
#if defined(CONFIG_CYCLES_CLOCKSOURCE)
cycles = get_cycles();
SSYNC();
cycles += 10; /* ~10 cycles we lose after get_cycles() */
__bfin_cycles_off += (cycles << __bfin_cycles_mod) - (cycles << index);
__bfin_cycles_mod = index;
#endif
if (!lpj_ref_freq) {
lpj_ref = loops_per_jiffy;
lpj_ref_freq = freqs.old;
}
if (freqs.new != freqs.old) {
loops_per_jiffy = cpufreq_scale(lpj_ref,
lpj_ref_freq, freqs.new);
}
/* TODO: just test case for cycles clock source, remove later */
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("cpufreq: done\n");
return ret;

20
arch/cris/arch-v32/mach-a3/cpufreq.c
View File

@ -27,23 +27,17 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
return clk_ctrl.pll ? 200000 : 6000;
}
static void cris_freq_set_cpu_state(unsigned int state)
static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
unsigned int state)
{
int i = 0;
struct cpufreq_freqs freqs;
reg_clkgen_rw_clk_ctrl clk_ctrl;
clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
#ifdef CONFIG_SMP
for_each_present_cpu(i)
#endif
{
freqs.old = cris_freq_get_cpu_frequency(i);
freqs.new = cris_freq_table[state].frequency;
freqs.cpu = i;
}
freqs.old = cris_freq_get_cpu_frequency(policy->cpu);
freqs.new = cris_freq_table[state].frequency;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
local_irq_disable();
@ -57,7 +51,7 @@ static void cris_freq_set_cpu_state(unsigned int state)
local_irq_enable();
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
static int cris_freq_verify(struct cpufreq_policy *policy)
@ -75,7 +69,7 @@ static int cris_freq_target(struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
cris_freq_set_cpu_state(newstate);
cris_freq_set_cpu_state(policy, newstate);
return 0;
}

17
arch/cris/arch-v32/mach-fs/cpufreq.c
View File

@ -27,20 +27,17 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
return clk_ctrl.pll ? 200000 : 6000;
}
static void cris_freq_set_cpu_state(unsigned int state)
static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
unsigned int state)
{
int i;
struct cpufreq_freqs freqs;
reg_config_rw_clk_ctrl clk_ctrl;
clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
for_each_possible_cpu(i) {
freqs.old = cris_freq_get_cpu_frequency(i);
freqs.new = cris_freq_table[state].frequency;
freqs.cpu = i;
}
freqs.old = cris_freq_get_cpu_frequency(policy->cpu);
freqs.new = cris_freq_table[state].frequency;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
local_irq_disable();
@ -54,7 +51,7 @@ static void cris_freq_set_cpu_state(unsigned int state)
local_irq_enable();
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
static int cris_freq_verify(struct cpufreq_policy *policy)
@ -71,7 +68,7 @@ static int cris_freq_target(struct cpufreq_policy *policy,
(policy, cris_freq_table, target_freq, relation, &newstate))
return -EINVAL;
cris_freq_set_cpu_state(newstate);
cris_freq_set_cpu_state(policy, newstate);
return 0;
}

22
arch/ia64/kernel/cpufreq/acpi-cpufreq.c
View File

@ -137,7 +137,7 @@ migrate_end:
static int
processor_set_freq (
struct cpufreq_acpi_io *data,
unsigned int cpu,
struct cpufreq_policy *policy,
int state)
{
int ret = 0;
@ -149,8 +149,8 @@ processor_set_freq (
pr_debug("processor_set_freq\n");
saved_mask = current->cpus_allowed;
set_cpus_allowed_ptr(current, cpumask_of(cpu));
if (smp_processor_id() != cpu) {
set_cpus_allowed_ptr(current, cpumask_of(policy->cpu));
if (smp_processor_id() != policy->cpu) {
retval = -EAGAIN;
goto migrate_end;
}
@ -170,12 +170,11 @@ processor_set_freq (
data->acpi_data.state, state);
/* cpufreq frequency struct */
cpufreq_freqs.cpu = cpu;
cpufreq_freqs.old = data->freq_table[data->acpi_data.state].frequency;
cpufreq_freqs.new = data->freq_table[state].frequency;
/* notify cpufreq */
cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &cpufreq_freqs, CPUFREQ_PRECHANGE);
/*
* First we write the target state's 'control' value to the
@ -189,17 +188,20 @@ processor_set_freq (
ret = processor_set_pstate(value);
if (ret) {
unsigned int tmp = cpufreq_freqs.new;
cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &cpufreq_freqs,
CPUFREQ_POSTCHANGE);
cpufreq_freqs.new = cpufreq_freqs.old;
cpufreq_freqs.old = tmp;
cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &cpufreq_freqs,
CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &cpufreq_freqs,
CPUFREQ_POSTCHANGE);
printk(KERN_WARNING "Transition failed with error %d\n", ret);
retval = -ENODEV;
goto migrate_end;
}
cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &cpufreq_freqs, CPUFREQ_POSTCHANGE);
data->acpi_data.state = state;
@ -240,7 +242,7 @@ acpi_cpufreq_target (
if (result)
return (result);
result = processor_set_freq(data, policy->cpu, next_state);
result = processor_set_freq(data, policy, next_state);
return (result);
}

5
arch/mips/kernel/cpufreq/loongson2_cpufreq.c
View File

@ -80,7 +80,6 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000);
freqs.cpu = cpu;
freqs.old = loongson2_cpufreq_get(cpu);
freqs.new = freq;
freqs.flags = 0;
@ -89,7 +88,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
return 0;
/* notifiers */
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
@ -97,7 +96,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
clk_set_rate(cpuclk, freq);
/* notifiers */
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("cpufreq: set frequency %u kHz\n", freq);

5
arch/powerpc/platforms/cell/cbe_cpufreq.c
View File

@ -156,10 +156,9 @@ static int cbe_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = policy->cur;
freqs.new = cbe_freqs[cbe_pmode_new].frequency;
freqs.cpu = policy->cpu;
mutex_lock(&cbe_switch_mutex);
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
pr_debug("setting frequency for cpu %d to %d kHz, " \
"1/%d of max frequency\n",
@ -169,7 +168,7 @@ static int cbe_cpufreq_target(struct cpufreq_policy *policy,
rc = set_pmode(policy->cpu, cbe_pmode_new);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&cbe_switch_mutex);
return rc;

5
arch/powerpc/platforms/pasemi/cpufreq.c
View File

@ -273,10 +273,9 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = policy->cur;
freqs.new = pas_freqs[pas_astate_new].frequency;
freqs.cpu = policy->cpu;
mutex_lock(&pas_switch_mutex);
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
pr_debug("setting frequency for cpu %d to %d kHz, 1/%d of max frequency\n",
policy->cpu,
@ -288,7 +287,7 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy,
for_each_online_cpu(i)
set_astate(i, pas_astate_new);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&pas_switch_mutex);
ppc_proc_freq = freqs.new * 1000ul;

14
arch/powerpc/platforms/powermac/cpufreq_32.c
View File

@ -335,7 +335,8 @@ static int pmu_set_cpu_speed(int low_speed)
return 0;
}
static int do_set_cpu_speed(int speed_mode, int notify)
static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode,
int notify)
{
struct cpufreq_freqs freqs;
unsigned long l3cr;
@ -343,13 +344,12 @@ static int do_set_cpu_speed(int speed_mode, int notify)
freqs.old = cur_freq;
freqs.new = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
freqs.cpu = smp_processor_id();
if (freqs.old == freqs.new)
return 0;
if (notify)
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (speed_mode == CPUFREQ_LOW &&
cpu_has_feature(CPU_FTR_L3CR)) {
l3cr = _get_L3CR();
@ -366,7 +366,7 @@ static int do_set_cpu_speed(int speed_mode, int notify)
_set_L3CR(prev_l3cr);
}
if (notify)
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
cur_freq = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
return 0;
@ -393,7 +393,7 @@ static int pmac_cpufreq_target( struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
rc = do_set_cpu_speed(newstate, 1);
rc = do_set_cpu_speed(policy, newstate, 1);
ppc_proc_freq = cur_freq * 1000ul;
return rc;
@ -442,7 +442,7 @@ static int pmac_cpufreq_suspend(struct cpufreq_policy *policy)
no_schedule = 1;
sleep_freq = cur_freq;
if (cur_freq == low_freq && !is_pmu_based)
do_set_cpu_speed(CPUFREQ_HIGH, 0);
do_set_cpu_speed(policy, CPUFREQ_HIGH, 0);
return 0;
}
@ -458,7 +458,7 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy)
* is that we force a switch to whatever it was, which is
* probably high speed due to our suspend() routine
*/
do_set_cpu_speed(sleep_freq == low_freq ?
do_set_cpu_speed(policy, sleep_freq == low_freq ?
CPUFREQ_LOW : CPUFREQ_HIGH, 0);
ppc_proc_freq = cur_freq * 1000ul;

5
arch/powerpc/platforms/powermac/cpufreq_64.c
View File

@ -339,11 +339,10 @@ static int g5_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency;
freqs.new = g5_cpu_freqs[newstate].frequency;
freqs.cpu = 0;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
rc = g5_switch_freq(newstate);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&g5_switch_mutex);

5
arch/sh/kernel/cpufreq.c
View File

@ -69,15 +69,14 @@ static int sh_cpufreq_target(struct cpufreq_policy *policy,
dev_dbg(dev, "requested frequency %u Hz\n", target_freq * 1000);
freqs.cpu = cpu;
freqs.old = sh_cpufreq_get(cpu);
freqs.new = (freq + 500) / 1000;
freqs.flags = 0;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
clk_set_rate(cpuclk, freq);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
dev_dbg(dev, "set frequency %lu Hz\n", freq);

13
arch/sparc/kernel/us2e_cpufreq.c
View File

@ -248,8 +248,10 @@ static unsigned int us2e_freq_get(unsigned int cpu)
return clock_tick / estar_to_divisor(estar);
}
static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index)
static void us2e_set_cpu_divider_index(struct cpufreq_policy *policy,
unsigned int index)
{
unsigned int cpu = policy->cpu;
unsigned long new_bits, new_freq;
unsigned long clock_tick, divisor, old_divisor, estar;
cpumask_t cpus_allowed;
@ -272,14 +274,13 @@ static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index)
freqs.old = clock_tick / old_divisor;
freqs.new = new_freq;
freqs.cpu = cpu;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (old_divisor != divisor)
us2e_transition(estar, new_bits, clock_tick * 1000,
old_divisor, divisor);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
}
@ -295,7 +296,7 @@ static int us2e_freq_target(struct cpufreq_policy *policy,
target_freq, relation, &new_index))
return -EINVAL;
us2e_set_cpu_divider_index(policy->cpu, new_index);
us2e_set_cpu_divider_index(policy, new_index);
return 0;
}
@ -335,7 +336,7 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
{
if (cpufreq_us2e_driver)
us2e_set_cpu_divider_index(policy->cpu, 0);
us2e_set_cpu_divider_index(policy, 0);
return 0;
}

13
arch/sparc/kernel/us3_cpufreq.c
View File

@ -96,8 +96,10 @@ static unsigned int us3_freq_get(unsigned int cpu)
return ret;
}
static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index)
static void us3_set_cpu_divider_index(struct cpufreq_policy *policy,
unsigned int index)
{
unsigned int cpu = policy->cpu;
unsigned long new_bits, new_freq, reg;
cpumask_t cpus_allowed;
struct cpufreq_freqs freqs;
@ -131,14 +133,13 @@ static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index)
freqs.old = get_current_freq(cpu, reg);
freqs.new = new_freq;
freqs.cpu = cpu;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
reg &= ~SAFARI_CFG_DIV_MASK;
reg |= new_bits;
write_safari_cfg(reg);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
}
@ -156,7 +157,7 @@ static int us3_freq_target(struct cpufreq_policy *policy,
&new_index))
return -EINVAL;
us3_set_cpu_divider_index(policy->cpu, new_index);
us3_set_cpu_divider_index(policy, new_index);
return 0;
}
@ -192,7 +193,7 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
{
if (cpufreq_us3_driver)
us3_set_cpu_divider_index(policy->cpu, 0);
us3_set_cpu_divider_index(policy, 0);
return 0;
}

5
arch/unicore32/kernel/cpu-ucv2.c
View File

@ -52,15 +52,14 @@ static int ucv2_target(struct cpufreq_policy *policy,
struct cpufreq_freqs freqs;
struct clk *mclk = clk_get(NULL, "MAIN_CLK");
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (!clk_set_rate(mclk, target_freq * 1000)) {
freqs.old = cur;
freqs.new = target_freq;
freqs.cpu = 0;
}
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

11
drivers/cpufreq/acpi-cpufreq.c
View File

@ -423,7 +423,6 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
struct drv_cmd cmd;
unsigned int next_state = 0; /* Index into freq_table */
unsigned int next_perf_state = 0; /* Index into perf table */
unsigned int i;
int result = 0;
pr_debug("acpi_cpufreq_target %d (%d)\n", target_freq, policy->cpu);
@ -486,10 +485,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = perf->states[perf->state].core_frequency * 1000;
freqs.new = data->freq_table[next_state].frequency;
for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
drv_write(&cmd);
@ -502,10 +498,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
}
}
for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
perf->state = next_perf_state;
out:

12
drivers/cpufreq/cpufreq-cpu0.c
View File

@ -46,7 +46,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
struct opp *opp;
unsigned long volt = 0, volt_old = 0, tol = 0;
long freq_Hz;
unsigned int index, cpu;
unsigned int index;
int ret;
ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
@ -66,10 +66,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
if (freqs.old == freqs.new)
return 0;
for_each_online_cpu(cpu) {
freqs.cpu = cpu;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (cpu_reg) {
rcu_read_lock();
@ -121,10 +118,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
}
post_notify:
for_each_online_cpu(cpu) {
freqs.cpu = cpu;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}

5
drivers/cpufreq/cpufreq-nforce2.c
View File

@ -263,7 +263,6 @@ static int nforce2_target(struct cpufreq_policy *policy,
freqs.old = nforce2_get(policy->cpu);
freqs.new = target_fsb * fid * 100;
freqs.cpu = 0; /* Only one CPU on nForce2 platforms */
if (freqs.old == freqs.new)
return 0;
@ -271,7 +270,7 @@ static int nforce2_target(struct cpufreq_policy *policy,
pr_debug("Old CPU frequency %d kHz, new %d kHz\n",
freqs.old, freqs.new);
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Disable IRQs */
/* local_irq_save(flags); */
@ -286,7 +285,7 @@ static int nforce2_target(struct cpufreq_policy *policy,
/* Enable IRQs */
/* local_irq_restore(flags); */
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

45
drivers/cpufreq/cpufreq.c
View File

@ -249,19 +249,9 @@ static inline void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci)
#endif
/**
* cpufreq_notify_transition - call notifier chain and adjust_jiffies
* on frequency transition.
*
* This function calls the transition notifiers and the "adjust_jiffies"
* function. It is called twice on all CPU frequency changes that have
* external effects.
*/
void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
void __cpufreq_notify_transition(struct cpufreq_policy *policy,
struct cpufreq_freqs *freqs, unsigned int state)
{
struct cpufreq_policy *policy;
unsigned long flags;
BUG_ON(irqs_disabled());
if (cpufreq_disabled())
@ -271,10 +261,6 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
pr_debug("notification %u of frequency transition to %u kHz\n",
state, freqs->new);
read_lock_irqsave(&cpufreq_driver_lock, flags);
policy = per_cpu(cpufreq_cpu_data, freqs->cpu);
read_unlock_irqrestore(&cpufreq_driver_lock, flags);
switch (state) {
case CPUFREQ_PRECHANGE:
@ -308,6 +294,20 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
break;
}
}
/**
* cpufreq_notify_transition - call notifier chain and adjust_jiffies
* on frequency transition.
*
* This function calls the transition notifiers and the "adjust_jiffies"
* function. It is called twice on all CPU frequency changes that have
* external effects.
*/
void cpufreq_notify_transition(struct cpufreq_policy *policy,
struct cpufreq_freqs *freqs, unsigned int state)
{
for_each_cpu(freqs->cpu, policy->cpus)
__cpufreq_notify_transition(policy, freqs, state);
}
EXPORT_SYMBOL_GPL(cpufreq_notify_transition);
@ -1141,16 +1141,23 @@ static void handle_update(struct work_struct *work)
static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq,
unsigned int new_freq)
{
struct cpufreq_policy *policy;
struct cpufreq_freqs freqs;
unsigned long flags;
pr_debug("Warning: CPU frequency out of sync: cpufreq and timing "
"core thinks of %u, is %u kHz.\n", old_freq, new_freq);
freqs.cpu = cpu;
freqs.old = old_freq;
freqs.new = new_freq;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
read_lock_irqsave(&cpufreq_driver_lock, flags);
policy = per_cpu(cpufreq_cpu_data, cpu);
read_unlock_irqrestore(&cpufreq_driver_lock, flags);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
}

6
drivers/cpufreq/dbx500-cpufreq.c
View File

@ -55,8 +55,7 @@ static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
return 0;
/* pre-change notification */
for_each_cpu(freqs.cpu, policy->cpus)
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* update armss clk frequency */
ret = clk_set_rate(armss_clk, freqs.new * 1000);
@ -68,8 +67,7 @@ static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
}
/* post change notification */
for_each_cpu(freqs.cpu, policy->cpus)
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

11
drivers/cpufreq/e_powersaver.c
View File

@ -104,7 +104,7 @@ static unsigned int eps_get(unsigned int cpu)
}
static int eps_set_state(struct eps_cpu_data *centaur,
unsigned int cpu,
struct cpufreq_policy *policy,
u32 dest_state)
{
struct cpufreq_freqs freqs;
@ -112,10 +112,9 @@ static int eps_set_state(struct eps_cpu_data *centaur,
int err = 0;
int i;
freqs.old = eps_get(cpu);
freqs.old = eps_get(policy->cpu);
freqs.new = centaur->fsb * ((dest_state >> 8) & 0xff);
freqs.cpu = cpu;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Wait while CPU is busy */
rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
@ -162,7 +161,7 @@ postchange:
current_multiplier);
}
#endif
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return err;
}
@ -190,7 +189,7 @@ static int eps_target(struct cpufreq_policy *policy,
/* Make frequency transition */
dest_state = centaur->freq_table[newstate].index & 0xffff;
ret = eps_set_state(centaur, cpu, dest_state);
ret = eps_set_state(centaur, policy, dest_state);
if (ret)
printk(KERN_ERR "eps: Timeout!\n");
return ret;

10
drivers/cpufreq/elanfreq.c
View File

@ -117,15 +117,15 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu)
* There is no return value.
*/
static void elanfreq_set_cpu_state(unsigned int state)
static void elanfreq_set_cpu_state(struct cpufreq_policy *policy,
unsigned int state)
{
struct cpufreq_freqs freqs;
freqs.old = elanfreq_get_cpu_frequency(0);
freqs.new = elan_multiplier[state].clock;
freqs.cpu = 0; /* elanfreq.c is UP only driver */
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n",
elan_multiplier[state].clock);
@ -161,7 +161,7 @@ static void elanfreq_set_cpu_state(unsigned int state)
udelay(10000);
local_irq_enable();
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
@ -188,7 +188,7 @@ static int elanfreq_target(struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
elanfreq_set_cpu_state(newstate);
elanfreq_set_cpu_state(policy, newstate);
return 0;
}

7
drivers/cpufreq/exynos-cpufreq.c
View File

@ -70,7 +70,6 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
freqs.old = policy->cur;
freqs.new = target_freq;
freqs.cpu = policy->cpu;
if (freqs.new == freqs.old)
goto out;
@ -105,8 +104,7 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
}
arm_volt = volt_table[index];
for_each_cpu(freqs.cpu, policy->cpus)
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* When the new frequency is higher than current frequency */
if ((freqs.new > freqs.old) && !safe_arm_volt) {
@ -131,8 +129,7 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
exynos_info->set_freq(old_index, index);
for_each_cpu(freqs.cpu, policy->cpus)
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
/* When the new frequency is lower than current frequency */
if ((freqs.new < freqs.old) ||

11
drivers/cpufreq/gx-suspmod.c
View File

@ -251,14 +251,13 @@ static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration,
* set cpu speed in khz.
**/
static void gx_set_cpuspeed(unsigned int khz)
static void gx_set_cpuspeed(struct cpufreq_policy *policy, unsigned int khz)
{
u8 suscfg, pmer1;
unsigned int new_khz;
unsigned long flags;
struct cpufreq_freqs freqs;
freqs.cpu = 0;
freqs.old = gx_get_cpuspeed(0);
new_khz = gx_validate_speed(khz, &gx_params->on_duration,
@ -266,11 +265,9 @@ static void gx_set_cpuspeed(unsigned int khz)
freqs.new = new_khz;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
local_irq_save(flags);
if (new_khz != stock_freq) {
/* if new khz == 100% of CPU speed, it is special case */
switch (gx_params->cs55x0->device) {
@ -317,7 +314,7 @@ static void gx_set_cpuspeed(unsigned int khz)
gx_params->pci_suscfg = suscfg;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("suspend modulation w/ duration of ON:%d us, OFF:%d us\n",
gx_params->on_duration * 32, gx_params->off_duration * 32);
@ -397,7 +394,7 @@ static int cpufreq_gx_target(struct cpufreq_policy *policy,
tmp_freq = gx_validate_speed(tmp_freq, &tmp1, &tmp2);
}
gx_set_cpuspeed(tmp_freq);
gx_set_cpuspeed(policy, tmp_freq);
return 0;
}

12
drivers/cpufreq/imx6q-cpufreq.c
View File

@ -50,7 +50,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
struct cpufreq_freqs freqs;
struct opp *opp;
unsigned long freq_hz, volt, volt_old;
unsigned int index, cpu;
unsigned int index;
int ret;
ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
@ -68,10 +68,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
if (freqs.old == freqs.new)
return 0;
for_each_online_cpu(cpu) {
freqs.cpu = cpu;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
rcu_read_lock();
opp = opp_find_freq_ceil(cpu_dev, &freq_hz);
@ -166,10 +163,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
}
}
for_each_online_cpu(cpu) {
freqs.cpu = cpu;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

10
drivers/cpufreq/kirkwood-cpufreq.c
View File

@ -55,7 +55,8 @@ static unsigned int kirkwood_cpufreq_get_cpu_frequency(unsigned int cpu)
return kirkwood_freq_table[0].frequency;
}
static void kirkwood_cpufreq_set_cpu_state(unsigned int index)
static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy,
unsigned int index)
{
struct cpufreq_freqs freqs;
unsigned int state = kirkwood_freq_table[index].index;
@ -63,9 +64,8 @@ static void kirkwood_cpufreq_set_cpu_state(unsigned int index)
freqs.old = kirkwood_cpufreq_get_cpu_frequency(0);
freqs.new = kirkwood_freq_table[index].frequency;
freqs.cpu = 0; /* Kirkwood is UP */
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
dev_dbg(priv.dev, "Attempting to set frequency to %i KHz\n",
kirkwood_freq_table[index].frequency);
@ -99,7 +99,7 @@ static void kirkwood_cpufreq_set_cpu_state(unsigned int index)
local_irq_enable();
}
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
static int kirkwood_cpufreq_verify(struct cpufreq_policy *policy)
@ -117,7 +117,7 @@ static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
target_freq, relation, &index))
return -EINVAL;
kirkwood_cpufreq_set_cpu_state(index);
kirkwood_cpufreq_set_cpu_state(policy, index);
return 0;
}

18
drivers/cpufreq/longhaul.c
View File

@ -242,7 +242,8 @@ static void do_powersaver(int cx_address, unsigned int mults_index,
* Sets a new clock ratio.
*/
static void longhaul_setstate(unsigned int table_index)
static void longhaul_setstate(struct cpufreq_policy *policy,
unsigned int table_index)
{
unsigned int mults_index;
int speed, mult;
@ -267,9 +268,8 @@ static void longhaul_setstate(unsigned int table_index)
freqs.old = calc_speed(longhaul_get_cpu_mult());
freqs.new = speed;
freqs.cpu = 0; /* longhaul.c is UP only driver */
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
pr_debug("Setting to FSB:%dMHz Mult:%d.%dx (%s)\n",
fsb, mult/10, mult%10, print_speed(speed/1000));
@ -386,7 +386,7 @@ retry_loop:
}
}
/* Report true CPU frequency */
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
if (!bm_timeout)
printk(KERN_INFO PFX "Warning: Timeout while waiting for "
@ -648,7 +648,7 @@ static int longhaul_target(struct cpufreq_policy *policy,
return 0;
if (!can_scale_voltage)
longhaul_setstate(table_index);
longhaul_setstate(policy, table_index);
else {
/* On test system voltage transitions exceeding single
* step up or down were turning motherboard off. Both
@ -663,7 +663,7 @@ static int longhaul_target(struct cpufreq_policy *policy,
while (i != table_index) {
vid = (longhaul_table[i].index >> 8) & 0x1f;
if (vid != current_vid) {
longhaul_setstate(i);
longhaul_setstate(policy, i);
current_vid = vid;
msleep(200);
}
@ -672,7 +672,7 @@ static int longhaul_target(struct cpufreq_policy *policy,
else
i--;
}
longhaul_setstate(table_index);
longhaul_setstate(policy, table_index);
}
longhaul_index = table_index;
return 0;
@ -998,15 +998,17 @@ static int __init longhaul_init(void)
static void __exit longhaul_exit(void)
{
struct cpufreq_policy *policy = cpufreq_cpu_get(0);
int i;
for (i = 0; i < numscales; i++) {
if (mults[i] == maxmult) {
longhaul_setstate(i);
longhaul_setstate(policy, i);
break;
}
}
cpufreq_cpu_put(policy);
cpufreq_unregister_driver(&longhaul_driver);
kfree(longhaul_table);
}

5
drivers/cpufreq/maple-cpufreq.c
View File

@ -158,11 +158,10 @@ static int maple_cpufreq_target(struct cpufreq_policy *policy,
freqs.old = maple_cpu_freqs[maple_pmode_cur].frequency;
freqs.new = maple_cpu_freqs[newstate].frequency;
freqs.cpu = 0;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
rc = maple_scom_switch_freq(newstate);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&maple_switch_mutex);

11
drivers/cpufreq/omap-cpufreq.c
View File

@ -88,16 +88,12 @@ static int omap_target(struct cpufreq_policy *policy,
}
freqs.old = omap_getspeed(policy->cpu);
freqs.cpu = policy->cpu;
if (freqs.old == freqs.new && policy->cur == freqs.new)
return ret;
/* notifiers */
for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
freq = freqs.new * 1000;
ret = clk_round_rate(mpu_clk, freq);
@ -157,10 +153,7 @@ static int omap_target(struct cpufreq_policy *policy,
done:
/* notifiers */
for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}

10
drivers/cpufreq/p4-clockmod.c
View File

@ -125,10 +125,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
return 0;
/* notifiers */
for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* run on each logical CPU,
* see section 13.15.3 of IA32 Intel Architecture Software
@ -138,10 +135,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
cpufreq_p4_setdc(i, p4clockmod_table[newstate].index);
/* notifiers */
for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

5
drivers/cpufreq/pcc-cpufreq.c
View File

@ -215,8 +215,7 @@ static int pcc_cpufreq_target(struct cpufreq_policy *policy,
(pcch_virt_addr + pcc_cpu_data->input_offset));
freqs.new = target_freq;
freqs.cpu = cpu;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
input_buffer = 0x1 | (((target_freq * 100)
/ (ioread32(&pcch_hdr->nominal) * 1000)) << 8);
@ -237,7 +236,7 @@ static int pcc_cpufreq_target(struct cpufreq_policy *policy,
}
iowrite16(0, &pcch_hdr->status);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
pr_debug("target: was SUCCESSFUL for cpu %d\n", cpu);
spin_unlock(&pcc_lock);

12
drivers/cpufreq/powernow-k6.c
View File

@ -68,7 +68,8 @@ static int powernow_k6_get_cpu_multiplier(void)
*
* Tries to change the PowerNow! multiplier
*/
static void powernow_k6_set_state(unsigned int best_i)
static void powernow_k6_set_state(struct cpufreq_policy *policy,
unsigned int best_i)
{
unsigned long outvalue = 0, invalue = 0;
unsigned long msrval;
@ -81,9 +82,8 @@ static void powernow_k6_set_state(unsigned int best_i)
freqs.old = busfreq * powernow_k6_get_cpu_multiplier();
freqs.new = busfreq * clock_ratio[best_i].index;
freqs.cpu = 0; /* powernow-k6.c is UP only driver */
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* we now need to transform best_i to the BVC format, see AMD#23446 */
@ -98,7 +98,7 @@ static void powernow_k6_set_state(unsigned int best_i)
msrval = POWERNOW_IOPORT + 0x0;
wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return;
}
@ -136,7 +136,7 @@ static int powernow_k6_target(struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
powernow_k6_set_state(newstate);
powernow_k6_set_state(policy, newstate);
return 0;
}
@ -182,7 +182,7 @@ static int powernow_k6_cpu_exit(struct cpufreq_policy *policy)
unsigned int i;
for (i = 0; i < 8; i++) {
if (i == max_multiplier)
powernow_k6_set_state(i);
powernow_k6_set_state(policy, i);
}
cpufreq_frequency_table_put_attr(policy->cpu);
return 0;

10
drivers/cpufreq/powernow-k7.c
View File

@ -248,7 +248,7 @@ static void change_VID(int vid)
}
static void change_speed(unsigned int index)
static void change_speed(struct cpufreq_policy *policy, unsigned int index)
{
u8 fid, vid;
struct cpufreq_freqs freqs;
@ -263,15 +263,13 @@ static void change_speed(unsigned int index)
fid = powernow_table[index].index & 0xFF;
vid = (powernow_table[index].index & 0xFF00) >> 8;
freqs.cpu = 0;
rdmsrl(MSR_K7_FID_VID_STATUS, fidvidstatus.val);
cfid = fidvidstatus.bits.CFID;
freqs.old = fsb * fid_codes[cfid] / 10;
freqs.new = powernow_table[index].frequency;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Now do the magic poking into the MSRs. */
@ -292,7 +290,7 @@ static void change_speed(unsigned int index)
if (have_a0 == 1)
local_irq_enable();
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
}
@ -546,7 +544,7 @@ static int powernow_target(struct cpufreq_policy *policy,
relation, &newstate))
return -EINVAL;
change_speed(newstate);
change_speed(policy, newstate);
return 0;
}

16
drivers/cpufreq/powernow-k8.c
View File

@ -928,9 +928,10 @@ static int get_transition_latency(struct powernow_k8_data *data)
static int transition_frequency_fidvid(struct powernow_k8_data *data,
unsigned int index)
{
struct cpufreq_policy *policy;
u32 fid = 0;
u32 vid = 0;
int res, i;
int res;
struct cpufreq_freqs freqs;
pr_debug("cpu %d transition to index %u\n", smp_processor_id(), index);
@ -959,10 +960,10 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data,
freqs.old = find_khz_freq_from_fid(data->currfid);
freqs.new = find_khz_freq_from_fid(fid);
for_each_cpu(i, data->available_cores) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
policy = cpufreq_cpu_get(smp_processor_id());
cpufreq_cpu_put(policy);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
res = transition_fid_vid(data, fid, vid);
if (res)
@ -970,10 +971,7 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data,
freqs.new = find_khz_freq_from_fid(data->currfid);
for_each_cpu(i, data->available_cores) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return res;
}

5
drivers/cpufreq/s3c2416-cpufreq.c
View File

@ -256,7 +256,6 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
goto out;
}
freqs.cpu = 0;
freqs.flags = 0;
freqs.old = s3c_freq->is_dvs ? FREQ_DVS
: clk_get_rate(s3c_freq->armclk) / 1000;
@ -274,7 +273,7 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
if (!to_dvs && freqs.old == freqs.new)
goto out;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (to_dvs) {
pr_debug("cpufreq: enter dvs\n");
@ -287,7 +286,7 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
ret = s3c2416_cpufreq_set_armdiv(s3c_freq, freqs.new);
}
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
out:
mutex_unlock(&cpufreq_lock);

7
drivers/cpufreq/s3c64xx-cpufreq.c
View File

@ -84,7 +84,6 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
if (ret != 0)
return ret;
freqs.cpu = 0;
freqs.old = clk_get_rate(armclk) / 1000;
freqs.new = s3c64xx_freq_table[i].frequency;
freqs.flags = 0;
@ -95,7 +94,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
pr_debug("Transition %d-%dkHz\n", freqs.old, freqs.new);
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
#ifdef CONFIG_REGULATOR
if (vddarm && freqs.new > freqs.old) {
@ -117,7 +116,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
goto err;
}
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
#ifdef CONFIG_REGULATOR
if (vddarm && freqs.new < freqs.old) {
@ -141,7 +140,7 @@ err_clk:
if (clk_set_rate(armclk, freqs.old * 1000) < 0)
pr_err("Failed to restore original clock rate\n");
err:
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}

5
drivers/cpufreq/s5pv210-cpufreq.c
View File

@ -229,7 +229,6 @@ static int s5pv210_target(struct cpufreq_policy *policy,
}
freqs.new = s5pv210_freq_table[index].frequency;
freqs.cpu = 0;
if (freqs.new == freqs.old)
goto exit;
@ -256,7 +255,7 @@ static int s5pv210_target(struct cpufreq_policy *policy,
goto exit;
}
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Check if there need to change PLL */
if ((index == L0) || (priv_index == L0))
@ -468,7 +467,7 @@ static int s5pv210_target(struct cpufreq_policy *policy,
}
}
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
if (freqs.new < freqs.old) {
regulator_set_voltage(int_regulator,

10
drivers/cpufreq/sc520_freq.c
View File

@ -53,7 +53,8 @@ static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu)
}
}
static void sc520_freq_set_cpu_state(unsigned int state)
static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy,
unsigned int state)
{
struct cpufreq_freqs freqs;
@ -61,9 +62,8 @@ static void sc520_freq_set_cpu_state(unsigned int state)
freqs.old = sc520_freq_get_cpu_frequency(0);
freqs.new = sc520_freq_table[state].frequency;
freqs.cpu = 0; /* AMD Elan is UP */
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
pr_debug("attempting to set frequency to %i kHz\n",
sc520_freq_table[state].frequency);
@ -75,7 +75,7 @@ static void sc520_freq_set_cpu_state(unsigned int state)
local_irq_enable();
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
};
static int sc520_freq_verify(struct cpufreq_policy *policy)
@ -93,7 +93,7 @@ static int sc520_freq_target(struct cpufreq_policy *policy,
target_freq, relation, &newstate))
return -EINVAL;
sc520_freq_set_cpu_state(newstate);
sc520_freq_set_cpu_state(policy, newstate);
return 0;
}

7
drivers/cpufreq/spear-cpufreq.c
View File

@ -121,7 +121,6 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy,
target_freq, relation, &index))
return -EINVAL;
freqs.cpu = policy->cpu;
freqs.old = spear_cpufreq_get(0);
newfreq = spear_cpufreq.freq_tbl[index].frequency * 1000;
@ -158,8 +157,7 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy,
freqs.new = newfreq / 1000;
freqs.new /= mult;
for_each_cpu(freqs.cpu, policy->cpus)
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (mult == 2)
ret = spear1340_set_cpu_rate(srcclk, newfreq);
@ -172,8 +170,7 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy,
freqs.new = clk_get_rate(spear_cpufreq.clk) / 1000;
}
for_each_cpu(freqs.cpu, policy->cpus)
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return ret;
}

24
drivers/cpufreq/speedstep-centrino.c
View File

@ -457,7 +457,7 @@ static int centrino_target (struct cpufreq_policy *policy,
unsigned int msr, oldmsr = 0, h = 0, cpu = policy->cpu;
struct cpufreq_freqs freqs;
int retval = 0;
unsigned int j, k, first_cpu, tmp;
unsigned int j, first_cpu, tmp;
cpumask_var_t covered_cpus;
if (unlikely(!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL)))
@ -522,13 +522,8 @@ static int centrino_target (struct cpufreq_policy *policy,
pr_debug("target=%dkHz old=%d new=%d msr=%04x\n",
target_freq, freqs.old, freqs.new, msr);
for_each_cpu(k, policy->cpus) {
if (!cpu_online(k))
continue;
freqs.cpu = k;
cpufreq_notify_transition(&freqs,
cpufreq_notify_transition(policy, &freqs,
CPUFREQ_PRECHANGE);
}
first_cpu = 0;
/* all but 16 LSB are reserved, treat them with care */
@ -544,12 +539,7 @@ static int centrino_target (struct cpufreq_policy *policy,
cpumask_set_cpu(j, covered_cpus);
}
for_each_cpu(k, policy->cpus) {
if (!cpu_online(k))
continue;
freqs.cpu = k;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
if (unlikely(retval)) {
/*
@ -565,12 +555,8 @@ static int centrino_target (struct cpufreq_policy *policy,
tmp = freqs.new;
freqs.new = freqs.old;
freqs.old = tmp;
for_each_cpu(j, policy->cpus) {
if (!cpu_online(j))
continue;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
}
retval = 0;

12
drivers/cpufreq/speedstep-ich.c
View File

@ -263,7 +263,6 @@ static int speedstep_target(struct cpufreq_policy *policy,
{
unsigned int newstate = 0, policy_cpu;
struct cpufreq_freqs freqs;
int i;
if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0],
target_freq, relation, &newstate))
@ -272,7 +271,6 @@ static int speedstep_target(struct cpufreq_policy *policy,
policy_cpu = cpumask_any_and(policy->cpus, cpu_online_mask);
freqs.old = speedstep_get(policy_cpu);
freqs.new = speedstep_freqs[newstate].frequency;
freqs.cpu = policy->cpu;
pr_debug("transiting from %u to %u kHz\n", freqs.old, freqs.new);
@ -280,18 +278,12 @@ static int speedstep_target(struct cpufreq_policy *policy,
if (freqs.old == freqs.new)
return 0;
for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
smp_call_function_single(policy_cpu, _speedstep_set_state, &newstate,
true);
for_each_cpu(i, policy->cpus) {
freqs.cpu = i;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

5
drivers/cpufreq/speedstep-smi.c
View File

@ -252,14 +252,13 @@ static int speedstep_target(struct cpufreq_policy *policy,
freqs.old = speedstep_freqs[speedstep_get_state()].frequency;
freqs.new = speedstep_freqs[newstate].frequency;
freqs.cpu = 0; /* speedstep.c is UP only driver */
if (freqs.old == freqs.new)
return 0;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
speedstep_set_state(newstate);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}

4
include/linux/cpufreq.h
View File

@ -278,8 +278,8 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data);
int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state);
void cpufreq_notify_transition(struct cpufreq_policy *policy,
struct cpufreq_freqs *freqs, unsigned int state);
static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy, unsigned int min, unsigned int max)
{