Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932367Ab3HMNgN (ORCPT ); Tue, 13 Aug 2013 09:36:13 -0400 Received: from mail-pd0-f176.google.com ([209.85.192.176]:65009 "EHLO mail-pd0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932352Ab3HMNgJ (ORCPT ); Tue, 13 Aug 2013 09:36:09 -0400 From: Viresh Kumar To: rjw@sisk.pl Cc: linaro-kernel@lists.linaro.org, patches@linaro.org, cpufreq@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Viresh Kumar Subject: [PATCH V2 24/35] cpufreq: powernow: Covert to light weight ->target_index() routine Date: Tue, 13 Aug 2013 19:02:37 +0530 Message-Id: X-Mailer: git-send-email 1.7.12.rc2.18.g61b472e In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7136 Lines: 226 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. Signed-off-by: Viresh Kumar --- drivers/cpufreq/powernow-k6.c | 35 +++++------------------------------ drivers/cpufreq/powernow-k7.c | 22 ++++------------------ drivers/cpufreq/powernow-k8.c | 24 ++++++++---------------- 3 files changed, 17 insertions(+), 64 deletions(-) diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c index ff05d28..cb19fb8 100644 --- a/drivers/cpufreq/powernow-k6.c +++ b/drivers/cpufreq/powernow-k6.c @@ -63,12 +63,12 @@ static int powernow_k6_get_cpu_multiplier(void) /** - * powernow_k6_set_state - set the PowerNow! multiplier + * powernow_k6_target - set the PowerNow! multiplier * @best_i: clock_ratio[best_i] is the target multiplier * * Tries to change the PowerNow! multiplier */ -static void powernow_k6_set_state(struct cpufreq_policy *policy, +static int powernow_k6_target(struct cpufreq_policy *policy, unsigned int best_i) { unsigned long outvalue = 0, invalue = 0; @@ -77,7 +77,7 @@ static void powernow_k6_set_state(struct cpufreq_policy *policy, if (clock_ratio[best_i].driver_data > max_multiplier) { printk(KERN_ERR PFX "invalid target frequency\n"); - return; + return -EINVAL; } freqs.old = busfreq * powernow_k6_get_cpu_multiplier(); @@ -100,31 +100,6 @@ static void powernow_k6_set_state(struct cpufreq_policy *policy, cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return; -} - - -/** - * powernow_k6_setpolicy - sets 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) - * - * sets a new CPUFreq policy - */ -static int powernow_k6_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int newstate = 0; - - if (cpufreq_frequency_table_target(policy, &clock_ratio[0], - target_freq, relation, &newstate)) - return -EINVAL; - - powernow_k6_set_state(policy, newstate); - return 0; } @@ -162,7 +137,7 @@ 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(policy, i); + powernow_k6_target(policy, i); } cpufreq_frequency_table_put_attr(policy->cpu); return 0; @@ -177,7 +152,7 @@ static unsigned int powernow_k6_get(unsigned int cpu) static struct cpufreq_driver powernow_k6_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = powernow_k6_target, + .target_index = powernow_k6_target, .init = powernow_k6_cpu_init, .exit = powernow_k6_cpu_exit, .get = powernow_k6_get, diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c index 14cd98f..7c76f03 100644 --- a/drivers/cpufreq/powernow-k7.c +++ b/drivers/cpufreq/powernow-k7.c @@ -248,7 +248,7 @@ static void change_VID(int vid) } -static void change_speed(struct cpufreq_policy *policy, unsigned int index) +static int powernow_target(struct cpufreq_policy *policy, unsigned int index) { u8 fid, vid; struct cpufreq_freqs freqs; @@ -291,6 +291,8 @@ static void change_speed(struct cpufreq_policy *policy, unsigned int index) local_irq_enable(); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); + + return 0; } @@ -533,22 +535,6 @@ static int powernow_decode_bios(int maxfid, int startvid) } -static int powernow_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int newstate; - - if (cpufreq_frequency_table_target(policy, powernow_table, target_freq, - relation, &newstate)) - return -EINVAL; - - change_speed(policy, newstate); - - return 0; -} - - /* * We use the fact that the bus frequency is somehow * a multiple of 100000/3 khz, then we compute sgtc according @@ -696,7 +682,7 @@ static int powernow_cpu_exit(struct cpufreq_policy *policy) static struct cpufreq_driver powernow_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = powernow_target, + .target_index = powernow_target, .get = powernow_get, #ifdef CONFIG_X86_POWERNOW_K7_ACPI .bios_limit = acpi_processor_get_bios_limit, diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 1e6f68a..80bc606 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -977,20 +977,17 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, struct powernowk8_target_arg { struct cpufreq_policy *pol; - unsigned targfreq; - unsigned relation; + unsigned newstate; }; static long powernowk8_target_fn(void *arg) { struct powernowk8_target_arg *pta = arg; struct cpufreq_policy *pol = pta->pol; - unsigned targfreq = pta->targfreq; - unsigned relation = pta->relation; + unsigned newstate = pta->newstate; struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu); u32 checkfid; u32 checkvid; - unsigned int newstate; int ret; if (!data) @@ -1004,8 +1001,9 @@ static long powernowk8_target_fn(void *arg) return -EIO; } - pr_debug("targ: cpu %d, %d kHz, min %d, max %d, relation %d\n", - pol->cpu, targfreq, pol->min, pol->max, relation); + pr_debug("targ: cpu %d, %d kHz, min %d, max %d\n", + pol->cpu, data->powernow_table[newstate].frequency, pol->min, + pol->max); if (query_current_values_with_pending_wait(data)) return -EIO; @@ -1021,10 +1019,6 @@ static long powernowk8_target_fn(void *arg) checkvid, data->currvid); } - if (cpufreq_frequency_table_target(pol, data->powernow_table, - targfreq, relation, &newstate)) - return -EIO; - mutex_lock(&fidvid_mutex); powernow_k8_acpi_pst_values(data, newstate); @@ -1044,11 +1038,9 @@ static long powernowk8_target_fn(void *arg) } /* Driver entry point to switch to the target frequency */ -static int powernowk8_target(struct cpufreq_policy *pol, - unsigned targfreq, unsigned relation) +static int powernowk8_target(struct cpufreq_policy *pol, unsigned index) { - struct powernowk8_target_arg pta = { .pol = pol, .targfreq = targfreq, - .relation = relation }; + struct powernowk8_target_arg pta = { .pol = pol, .newstate = index }; return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta); } @@ -1216,7 +1208,7 @@ out: static struct cpufreq_driver cpufreq_amd64_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = powernowk8_target, + .target_index = powernowk8_target, .bios_limit = acpi_processor_get_bios_limit, .init = powernowk8_cpu_init, .exit = powernowk8_cpu_exit, -- 1.7.12.rc2.18.g61b472e -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/