This patch converts existing .target() to newly defined light weight .target_index() routine for this driver.
CPUFreq core will call cpufreq_frequency_table_target() before calling this routine and will pass index to it.
Cc: David S. Miller davem@davemloft.net Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- drivers/cpufreq/speedstep-centrino.c | 27 ++++++++------------------- drivers/cpufreq/speedstep-ich.c | 24 ++++++------------------ drivers/cpufreq/speedstep-smi.c | 20 +++++--------------- 3 files changed, 19 insertions(+), 52 deletions(-)
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c index 25e45f8..c51ec8c 100644 --- a/drivers/cpufreq/speedstep-centrino.c +++ b/drivers/cpufreq/speedstep-centrino.c @@ -416,21 +416,17 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy) /** * centrino_setpolicy - set a new CPUFreq policy * @policy: new policy - * @target_freq: the target frequency - * @relation: how that frequency relates to achieved frequency - * (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H) + * @index: index of target frequency * * Sets a new CPUFreq policy. */ -static int centrino_target (struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int centrino_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int newstate = 0; unsigned int msr, oldmsr = 0, h = 0, cpu = policy->cpu; struct cpufreq_freqs freqs; int retval = 0; unsigned int j, first_cpu, tmp; + struct cpufreq_frequency_table *op_points; cpumask_var_t covered_cpus;
if (unlikely(!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL))) @@ -441,16 +437,8 @@ static int centrino_target (struct cpufreq_policy *policy, goto out; }
- if (unlikely(cpufreq_frequency_table_target(policy, - per_cpu(centrino_model, cpu)->op_points, - target_freq, - relation, - &newstate))) { - retval = -EINVAL; - goto out; - } - first_cpu = 1; + op_points = &per_cpu(centrino_model, cpu)->op_points[index]; for_each_cpu(j, policy->cpus) { int good_cpu;
@@ -474,7 +462,7 @@ static int centrino_target (struct cpufreq_policy *policy, break; }
- msr = per_cpu(centrino_model, cpu)->op_points[newstate].driver_data; + msr = op_points->driver_data;
if (first_cpu) { rdmsr_on_cpu(good_cpu, MSR_IA32_PERF_CTL, &oldmsr, &h); @@ -489,7 +477,8 @@ static int centrino_target (struct cpufreq_policy *policy, freqs.new = extract_clock(msr, cpu, 0);
pr_debug("target=%dkHz old=%d new=%d msr=%04x\n", - target_freq, freqs.old, freqs.new, msr); + op_points->frequency, freqs.old, freqs.new, + msr);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); @@ -540,7 +529,7 @@ static struct cpufreq_driver centrino_driver = { .init = centrino_cpu_init, .exit = centrino_cpu_exit, .verify = cpufreq_generic_frequency_table_verify, - .target = centrino_target, + .target_index = centrino_target, .get = get_cur_freq, .attr = cpufreq_generic_attr, }; diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c index 1a8b01b..707721e 100644 --- a/drivers/cpufreq/speedstep-ich.c +++ b/drivers/cpufreq/speedstep-ich.c @@ -251,36 +251,24 @@ static unsigned int speedstep_get(unsigned int cpu) /** * speedstep_target - set a new CPUFreq policy * @policy: new policy - * @target_freq: the target frequency - * @relation: how that frequency relates to achieved frequency - * (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H) + * @index: index of target frequency * * Sets a new CPUFreq policy. */ -static int speedstep_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int speedstep_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int newstate = 0, policy_cpu; + unsigned int policy_cpu; struct cpufreq_freqs freqs;
- if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0], - target_freq, relation, &newstate)) - return -EINVAL; - policy_cpu = cpumask_any_and(policy->cpus, cpu_online_mask); freqs.old = speedstep_get(policy_cpu); - freqs.new = speedstep_freqs[newstate].frequency; + freqs.new = speedstep_freqs[index].frequency;
pr_debug("transiting from %u to %u kHz\n", freqs.old, freqs.new);
- /* no transition necessary */ - if (freqs.old == freqs.new) - return 0; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
- smp_call_function_single(policy_cpu, _speedstep_set_state, &newstate, + smp_call_function_single(policy_cpu, _speedstep_set_state, &index, true);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); @@ -330,7 +318,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver speedstep_driver = { .name = "speedstep-ich", .verify = cpufreq_generic_frequency_table_verify, - .target = speedstep_target, + .target_index = speedstep_target, .init = speedstep_cpu_init, .exit = cpufreq_generic_exit, .get = speedstep_get, diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c index a02b649..19446e4 100644 --- a/drivers/cpufreq/speedstep-smi.c +++ b/drivers/cpufreq/speedstep-smi.c @@ -235,29 +235,19 @@ static void speedstep_set_state(unsigned int state) /** * speedstep_target - set a new CPUFreq policy * @policy: new policy - * @target_freq: new freq - * @relation: + * @index: index of new freq * * Sets a new CPUFreq policy/freq. */ -static int speedstep_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) +static int speedstep_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int newstate = 0; struct cpufreq_freqs freqs;
- if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0], - target_freq, relation, &newstate)) - return -EINVAL; - freqs.old = speedstep_freqs[speedstep_get_state()].frequency; - freqs.new = speedstep_freqs[newstate].frequency; - - if (freqs.old == freqs.new) - return 0; + freqs.new = speedstep_freqs[index].frequency;
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - speedstep_set_state(newstate); + speedstep_set_state(index); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0; @@ -327,7 +317,7 @@ static int speedstep_resume(struct cpufreq_policy *policy) static struct cpufreq_driver speedstep_driver = { .name = "speedstep-smi", .verify = cpufreq_generic_frequency_table_verify, - .target = speedstep_target, + .target_index = speedstep_target, .init = speedstep_cpu_init, .exit = cpufreq_generic_exit, .get = speedstep_get,