Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Fix up whitespace in conservative governor. [CPUFREQ] Make cpufreq_conservative handle out-of-sync events properly [CPUFREQ] architectural pstate driver for powernow-k8hifive-unleashed-5.1
Linus Torvalds
commit
4c5cdb1e1f
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@ -46,7 +46,7 @@
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#define PFX "powernow-k8: "
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#define BFX PFX "BIOS error: "
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#define VERSION "version 2.00.00"
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#define VERSION "version 2.20.00"
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#include "powernow-k8.h"
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/* serialize freq changes */
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@ -73,33 +73,11 @@ static u32 find_khz_freq_from_fid(u32 fid)
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return 1000 * find_freq_from_fid(fid);
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}
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/* Return a frequency in MHz, given an input fid and did */
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static u32 find_freq_from_fiddid(u32 fid, u32 did)
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static u32 find_khz_freq_from_pstate(struct cpufreq_frequency_table *data, u32 pstate)
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{
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if (current_cpu_data.x86 == 0x10)
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return 100 * (fid + 0x10) >> did;
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else
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return 100 * (fid + 0x8) >> did;
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return data[pstate].frequency;
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}
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static u32 find_khz_freq_from_fiddid(u32 fid, u32 did)
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{
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return 1000 * find_freq_from_fiddid(fid, did);
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}
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static u32 find_fid_from_pstate(u32 pstate)
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{
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u32 hi, lo;
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rdmsr(MSR_PSTATE_DEF_BASE + pstate, lo, hi);
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return lo & HW_PSTATE_FID_MASK;
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}
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static u32 find_did_from_pstate(u32 pstate)
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{
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u32 hi, lo;
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rdmsr(MSR_PSTATE_DEF_BASE + pstate, lo, hi);
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return (lo & HW_PSTATE_DID_MASK) >> HW_PSTATE_DID_SHIFT;
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}
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/* Return the vco fid for an input fid
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*
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@ -142,9 +120,7 @@ static int query_current_values_with_pending_wait(struct powernow_k8_data *data)
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if (cpu_family == CPU_HW_PSTATE) {
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rdmsr(MSR_PSTATE_STATUS, lo, hi);
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i = lo & HW_PSTATE_MASK;
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rdmsr(MSR_PSTATE_DEF_BASE + i, lo, hi);
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data->currfid = lo & HW_PSTATE_FID_MASK;
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data->currdid = (lo & HW_PSTATE_DID_MASK) >> HW_PSTATE_DID_SHIFT;
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data->currpstate = i;
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return 0;
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}
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do {
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@ -295,7 +271,7 @@ static int decrease_vid_code_by_step(struct powernow_k8_data *data, u32 reqvid,
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static int transition_pstate(struct powernow_k8_data *data, u32 pstate)
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{
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wrmsr(MSR_PSTATE_CTRL, pstate, 0);
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data->currfid = find_fid_from_pstate(pstate);
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data->currpstate = pstate;
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return 0;
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}
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@ -845,17 +821,20 @@ err_out:
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static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table)
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{
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int i;
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u32 hi = 0, lo = 0;
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rdmsr(MSR_PSTATE_CUR_LIMIT, hi, lo);
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data->max_hw_pstate = (hi & HW_PSTATE_MAX_MASK) >> HW_PSTATE_MAX_SHIFT;
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for (i = 0; i < data->acpi_data.state_count; i++) {
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u32 index;
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u32 hi = 0, lo = 0;
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u32 fid;
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u32 did;
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index = data->acpi_data.states[i].control & HW_PSTATE_MASK;
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if (index > MAX_HW_PSTATE) {
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if (index > data->max_hw_pstate) {
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printk(KERN_ERR PFX "invalid pstate %d - bad value %d.\n", i, index);
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printk(KERN_ERR PFX "Please report to BIOS manufacturer\n");
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powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
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continue;
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}
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rdmsr(MSR_PSTATE_DEF_BASE + index, lo, hi);
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if (!(hi & HW_PSTATE_VALID_MASK)) {
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@ -864,22 +843,9 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpuf
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continue;
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}
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fid = lo & HW_PSTATE_FID_MASK;
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did = (lo & HW_PSTATE_DID_MASK) >> HW_PSTATE_DID_SHIFT;
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powernow_table[i].index = index;
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dprintk(" %d : fid 0x%x, did 0x%x\n", index, fid, did);
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powernow_table[i].index = index | (fid << HW_FID_INDEX_SHIFT) | (did << HW_DID_INDEX_SHIFT);
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powernow_table[i].frequency = find_khz_freq_from_fiddid(fid, did);
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if (powernow_table[i].frequency != (data->acpi_data.states[i].core_frequency * 1000)) {
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printk(KERN_INFO PFX "invalid freq entries %u kHz vs. %u kHz\n",
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powernow_table[i].frequency,
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(unsigned int) (data->acpi_data.states[i].core_frequency * 1000));
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powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
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continue;
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}
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powernow_table[i].frequency = data->acpi_data.states[i].core_frequency * 1000;
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}
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return 0;
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}
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@ -1020,22 +986,18 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, unsigned i
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/* Take a frequency, and issue the hardware pstate transition command */
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static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned int index)
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{
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u32 fid = 0;
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u32 did = 0;
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u32 pstate = 0;
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int res, i;
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struct cpufreq_freqs freqs;
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dprintk("cpu %d transition to index %u\n", smp_processor_id(), index);
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/* get fid did for hardware pstate transition */
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/* get MSR index for hardware pstate transition */
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pstate = index & HW_PSTATE_MASK;
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if (pstate > MAX_HW_PSTATE)
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if (pstate > data->max_hw_pstate)
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return 0;
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fid = (index & HW_FID_INDEX_MASK) >> HW_FID_INDEX_SHIFT;
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did = (index & HW_DID_INDEX_MASK) >> HW_DID_INDEX_SHIFT;
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freqs.old = find_khz_freq_from_fiddid(data->currfid, data->currdid);
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freqs.new = find_khz_freq_from_fiddid(fid, did);
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freqs.old = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
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freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate);
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for_each_cpu_mask(i, *(data->available_cores)) {
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freqs.cpu = i;
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@ -1043,9 +1005,7 @@ static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned i
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}
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res = transition_pstate(data, pstate);
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data->currfid = find_fid_from_pstate(pstate);
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data->currdid = find_did_from_pstate(pstate);
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freqs.new = find_khz_freq_from_fiddid(data->currfid, data->currdid);
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freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate);
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for_each_cpu_mask(i, *(data->available_cores)) {
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freqs.cpu = i;
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@ -1090,10 +1050,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
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if (query_current_values_with_pending_wait(data))
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goto err_out;
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if (cpu_family == CPU_HW_PSTATE)
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dprintk("targ: curr fid 0x%x, did 0x%x\n",
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data->currfid, data->currdid);
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else {
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if (cpu_family != CPU_HW_PSTATE) {
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dprintk("targ: curr fid 0x%x, vid 0x%x\n",
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data->currfid, data->currvid);
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@ -1124,7 +1081,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
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mutex_unlock(&fidvid_mutex);
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if (cpu_family == CPU_HW_PSTATE)
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pol->cur = find_khz_freq_from_fiddid(data->currfid, data->currdid);
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pol->cur = find_khz_freq_from_pstate(data->powernow_table, newstate);
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else
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pol->cur = find_khz_freq_from_fid(data->currfid);
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ret = 0;
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@ -1223,7 +1180,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
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+ (3 * (1 << data->irt) * 10)) * 1000;
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if (cpu_family == CPU_HW_PSTATE)
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pol->cur = find_khz_freq_from_fiddid(data->currfid, data->currdid);
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pol->cur = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
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else
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pol->cur = find_khz_freq_from_fid(data->currfid);
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dprintk("policy current frequency %d kHz\n", pol->cur);
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@ -1240,8 +1197,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
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cpufreq_frequency_table_get_attr(data->powernow_table, pol->cpu);
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if (cpu_family == CPU_HW_PSTATE)
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dprintk("cpu_init done, current fid 0x%x, did 0x%x\n",
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data->currfid, data->currdid);
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dprintk("cpu_init done, current pstate 0x%x\n", data->currpstate);
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else
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dprintk("cpu_init done, current fid 0x%x, vid 0x%x\n",
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data->currfid, data->currvid);
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@ -1297,7 +1253,7 @@ static unsigned int powernowk8_get (unsigned int cpu)
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goto out;
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if (cpu_family == CPU_HW_PSTATE)
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khz = find_khz_freq_from_fiddid(data->currfid, data->currdid);
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khz = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
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else
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khz = find_khz_freq_from_fid(data->currfid);
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@ -10,6 +10,7 @@ struct powernow_k8_data {
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u32 numps; /* number of p-states */
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u32 batps; /* number of p-states supported on battery */
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u32 max_hw_pstate; /* maximum legal hardware pstate */
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/* these values are constant when the PSB is used to determine
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* vid/fid pairings, but are modified during the ->target() call
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@ -21,8 +22,8 @@ struct powernow_k8_data {
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u32 plllock; /* pll lock time, units 1 us */
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u32 exttype; /* extended interface = 1 */
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/* keep track of the current fid / vid or did */
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u32 currvid, currfid, currdid;
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/* keep track of the current fid / vid or pstate */
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u32 currvid, currfid, currpstate;
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/* the powernow_table includes all frequency and vid/fid pairings:
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* fid are the lower 8 bits of the index, vid are the upper 8 bits.
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@ -87,23 +88,14 @@ struct powernow_k8_data {
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/* Hardware Pstate _PSS and MSR definitions */
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#define USE_HW_PSTATE 0x00000080
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#define HW_PSTATE_FID_MASK 0x0000003f
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#define HW_PSTATE_DID_MASK 0x000001c0
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#define HW_PSTATE_DID_SHIFT 6
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#define HW_PSTATE_MASK 0x00000007
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#define HW_PSTATE_VALID_MASK 0x80000000
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#define HW_FID_INDEX_SHIFT 8
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#define HW_FID_INDEX_MASK 0x0000ff00
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#define HW_DID_INDEX_SHIFT 16
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#define HW_DID_INDEX_MASK 0x00ff0000
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#define HW_WATTS_MASK 0xff
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#define HW_PWR_DVR_MASK 0x300
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#define HW_PWR_DVR_SHIFT 8
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#define HW_PWR_MAX_MULT 3
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#define MAX_HW_PSTATE 8 /* hw pstate supports up to 8 */
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#define HW_PSTATE_MAX_MASK 0x000000f0
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#define HW_PSTATE_MAX_SHIFT 4
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#define MSR_PSTATE_DEF_BASE 0xc0010064 /* base of Pstate MSRs */
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#define MSR_PSTATE_STATUS 0xc0010063 /* Pstate Status MSR */
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#define MSR_PSTATE_CTRL 0xc0010062 /* Pstate control MSR */
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#define MSR_PSTATE_CUR_LIMIT 0xc0010061 /* pstate current limit MSR */
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/* define the two driver architectures */
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#define CPU_OPTERON 0
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@ -37,17 +37,17 @@
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#define DEF_FREQUENCY_UP_THRESHOLD (80)
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#define DEF_FREQUENCY_DOWN_THRESHOLD (20)
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/*
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* The polling frequency of this governor depends on the capability of
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/*
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* The polling frequency of this governor depends on the capability of
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* the processor. Default polling frequency is 1000 times the transition
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* latency of the processor. The governor will work on any processor with
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* transition latency <= 10mS, using appropriate sampling
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* latency of the processor. The governor will work on any processor with
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* transition latency <= 10mS, using appropriate sampling
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* rate.
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* For CPUs with transition latency > 10mS (mostly drivers
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* with CPUFREQ_ETERNAL), this governor will not work.
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* All times here are in uS.
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*/
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static unsigned int def_sampling_rate;
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static unsigned int def_sampling_rate;
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#define MIN_SAMPLING_RATE_RATIO (2)
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/* for correct statistics, we need at least 10 ticks between each measure */
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#define MIN_STAT_SAMPLING_RATE \
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@ -63,12 +63,12 @@ static unsigned int def_sampling_rate;
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static void do_dbs_timer(struct work_struct *work);
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struct cpu_dbs_info_s {
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struct cpufreq_policy *cur_policy;
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unsigned int prev_cpu_idle_up;
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unsigned int prev_cpu_idle_down;
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unsigned int enable;
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unsigned int down_skip;
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unsigned int requested_freq;
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struct cpufreq_policy *cur_policy;
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unsigned int prev_cpu_idle_up;
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unsigned int prev_cpu_idle_down;
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unsigned int enable;
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unsigned int down_skip;
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unsigned int requested_freq;
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};
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static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
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@ -82,24 +82,24 @@ static unsigned int dbs_enable; /* number of CPUs using this policy */
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* cpu_hotplug lock should be taken before that. Note that cpu_hotplug lock
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* is recursive for the same process. -Venki
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*/
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static DEFINE_MUTEX (dbs_mutex);
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static DEFINE_MUTEX (dbs_mutex);
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static DECLARE_DELAYED_WORK(dbs_work, do_dbs_timer);
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struct dbs_tuners {
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unsigned int sampling_rate;
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unsigned int sampling_down_factor;
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unsigned int up_threshold;
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unsigned int down_threshold;
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unsigned int ignore_nice;
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unsigned int freq_step;
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unsigned int sampling_rate;
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unsigned int sampling_down_factor;
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unsigned int up_threshold;
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unsigned int down_threshold;
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unsigned int ignore_nice;
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unsigned int freq_step;
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};
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static struct dbs_tuners dbs_tuners_ins = {
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.up_threshold = DEF_FREQUENCY_UP_THRESHOLD,
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.down_threshold = DEF_FREQUENCY_DOWN_THRESHOLD,
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.sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR,
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.ignore_nice = 0,
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.freq_step = 5,
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.up_threshold = DEF_FREQUENCY_UP_THRESHOLD,
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.down_threshold = DEF_FREQUENCY_DOWN_THRESHOLD,
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.sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR,
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.ignore_nice = 0,
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.freq_step = 5,
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};
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static inline unsigned int get_cpu_idle_time(unsigned int cpu)
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@ -109,13 +109,34 @@ static inline unsigned int get_cpu_idle_time(unsigned int cpu)
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if (dbs_tuners_ins.ignore_nice)
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add_nice = kstat_cpu(cpu).cpustat.nice;
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ret = kstat_cpu(cpu).cpustat.idle +
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ret = kstat_cpu(cpu).cpustat.idle +
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kstat_cpu(cpu).cpustat.iowait +
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add_nice;
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return ret;
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}
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/* keep track of frequency transitions */
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static int
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dbs_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
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void *data)
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{
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struct cpufreq_freqs *freq = data;
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struct cpu_dbs_info_s *this_dbs_info = &per_cpu(cpu_dbs_info,
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freq->cpu);
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if (!this_dbs_info->enable)
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return 0;
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this_dbs_info->requested_freq = freq->new;
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return 0;
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}
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static struct notifier_block dbs_cpufreq_notifier_block = {
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.notifier_call = dbs_cpufreq_notifier
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};
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/************************** sysfs interface ************************/
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static ssize_t show_sampling_rate_max(struct cpufreq_policy *policy, char *buf)
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{
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@ -127,8 +148,8 @@ static ssize_t show_sampling_rate_min(struct cpufreq_policy *policy, char *buf)
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return sprintf (buf, "%u\n", MIN_SAMPLING_RATE);
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}
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#define define_one_ro(_name) \
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static struct freq_attr _name = \
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#define define_one_ro(_name) \
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static struct freq_attr _name = \
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__ATTR(_name, 0444, show_##_name, NULL)
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define_one_ro(sampling_rate_max);
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@ -148,7 +169,7 @@ show_one(down_threshold, down_threshold);
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show_one(ignore_nice_load, ignore_nice);
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show_one(freq_step, freq_step);
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static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
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static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
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const char *buf, size_t count)
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{
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unsigned int input;
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|
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@ -164,7 +185,7 @@ static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
|
|||
return count;
|
||||
}
|
||||
|
||||
static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
|
||||
static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
unsigned int input;
|
||||
|
|
@ -183,7 +204,7 @@ static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
|
|||
return count;
|
||||
}
|
||||
|
||||
static ssize_t store_up_threshold(struct cpufreq_policy *unused,
|
||||
static ssize_t store_up_threshold(struct cpufreq_policy *unused,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
unsigned int input;
|
||||
|
|
@ -202,7 +223,7 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
|
|||
return count;
|
||||
}
|
||||
|
||||
static ssize_t store_down_threshold(struct cpufreq_policy *unused,
|
||||
static ssize_t store_down_threshold(struct cpufreq_policy *unused,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
unsigned int input;
|
||||
|
|
@ -228,16 +249,16 @@ static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy,
|
|||
int ret;
|
||||
|
||||
unsigned int j;
|
||||
|
||||
ret = sscanf (buf, "%u", &input);
|
||||
if ( ret != 1 )
|
||||
|
||||
ret = sscanf(buf, "%u", &input);
|
||||
if (ret != 1)
|
||||
return -EINVAL;
|
||||
|
||||
if ( input > 1 )
|
||||
if (input > 1)
|
||||
input = 1;
|
||||
|
||||
|
||||
mutex_lock(&dbs_mutex);
|
||||
if ( input == dbs_tuners_ins.ignore_nice ) { /* nothing to do */
|
||||
if (input == dbs_tuners_ins.ignore_nice) { /* nothing to do */
|
||||
mutex_unlock(&dbs_mutex);
|
||||
return count;
|
||||
}
|
||||
|
|
@ -261,14 +282,14 @@ static ssize_t store_freq_step(struct cpufreq_policy *policy,
|
|||
unsigned int input;
|
||||
int ret;
|
||||
|
||||
ret = sscanf (buf, "%u", &input);
|
||||
ret = sscanf(buf, "%u", &input);
|
||||
|
||||
if ( ret != 1 )
|
||||
if (ret != 1)
|
||||
return -EINVAL;
|
||||
|
||||
if ( input > 100 )
|
||||
if (input > 100)
|
||||
input = 100;
|
||||
|
||||
|
||||
/* no need to test here if freq_step is zero as the user might actually
|
||||
* want this, they would be crazy though :) */
|
||||
mutex_lock(&dbs_mutex);
|
||||
|
|
@ -322,18 +343,18 @@ static void dbs_check_cpu(int cpu)
|
|||
|
||||
policy = this_dbs_info->cur_policy;
|
||||
|
||||
/*
|
||||
* The default safe range is 20% to 80%
|
||||
/*
|
||||
* The default safe range is 20% to 80%
|
||||
* Every sampling_rate, we check
|
||||
* - If current idle time is less than 20%, then we try to
|
||||
* increase frequency
|
||||
* - If current idle time is less than 20%, then we try to
|
||||
* increase frequency
|
||||
* Every sampling_rate*sampling_down_factor, we check
|
||||
* - If current idle time is more than 80%, then we try to
|
||||
* decrease frequency
|
||||
* - If current idle time is more than 80%, then we try to
|
||||
* decrease frequency
|
||||
*
|
||||
* Any frequency increase takes it to the maximum frequency.
|
||||
* Frequency reduction happens at minimum steps of
|
||||
* 5% (default) of max_frequency
|
||||
* Any frequency increase takes it to the maximum frequency.
|
||||
* Frequency reduction happens at minimum steps of
|
||||
* 5% (default) of max_frequency
|
||||
*/
|
||||
|
||||
/* Check for frequency increase */
|
||||
|
|
@ -361,13 +382,13 @@ static void dbs_check_cpu(int cpu)
|
|||
/* if we are already at full speed then break out early */
|
||||
if (this_dbs_info->requested_freq == policy->max)
|
||||
return;
|
||||
|
||||
|
||||
freq_step = (dbs_tuners_ins.freq_step * policy->max) / 100;
|
||||
|
||||
/* max freq cannot be less than 100. But who knows.... */
|
||||
if (unlikely(freq_step == 0))
|
||||
freq_step = 5;
|
||||
|
||||
|
||||
this_dbs_info->requested_freq += freq_step;
|
||||
if (this_dbs_info->requested_freq > policy->max)
|
||||
this_dbs_info->requested_freq = policy->max;
|
||||
|
|
@ -427,15 +448,15 @@ static void dbs_check_cpu(int cpu)
|
|||
}
|
||||
|
||||
static void do_dbs_timer(struct work_struct *work)
|
||||
{
|
||||
{
|
||||
int i;
|
||||
mutex_lock(&dbs_mutex);
|
||||
for_each_online_cpu(i)
|
||||
dbs_check_cpu(i);
|
||||
schedule_delayed_work(&dbs_work,
|
||||
schedule_delayed_work(&dbs_work,
|
||||
usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
|
||||
mutex_unlock(&dbs_mutex);
|
||||
}
|
||||
}
|
||||
|
||||
static inline void dbs_timer_init(void)
|
||||
{
|
||||
|
|
@ -462,13 +483,12 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
|
|||
|
||||
switch (event) {
|
||||
case CPUFREQ_GOV_START:
|
||||
if ((!cpu_online(cpu)) ||
|
||||
(!policy->cur))
|
||||
if ((!cpu_online(cpu)) || (!policy->cur))
|
||||
return -EINVAL;
|
||||
|
||||
if (this_dbs_info->enable) /* Already enabled */
|
||||
break;
|
||||
|
||||
|
||||
mutex_lock(&dbs_mutex);
|
||||
|
||||
rc = sysfs_create_group(&policy->kobj, &dbs_attr_group);
|
||||
|
|
@ -481,7 +501,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
|
|||
struct cpu_dbs_info_s *j_dbs_info;
|
||||
j_dbs_info = &per_cpu(cpu_dbs_info, j);
|
||||
j_dbs_info->cur_policy = policy;
|
||||
|
||||
|
||||
j_dbs_info->prev_cpu_idle_up = get_cpu_idle_time(cpu);
|
||||
j_dbs_info->prev_cpu_idle_down
|
||||
= j_dbs_info->prev_cpu_idle_up;
|
||||
|
|
@ -511,8 +531,11 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
|
|||
dbs_tuners_ins.sampling_rate = def_sampling_rate;
|
||||
|
||||
dbs_timer_init();
|
||||
cpufreq_register_notifier(
|
||||
&dbs_cpufreq_notifier_block,
|
||||
CPUFREQ_TRANSITION_NOTIFIER);
|
||||
}
|
||||
|
||||
|
||||
mutex_unlock(&dbs_mutex);
|
||||
break;
|
||||
|
||||
|
|
@ -525,9 +548,13 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
|
|||
* Stop the timerschedule work, when this governor
|
||||
* is used for first time
|
||||
*/
|
||||
if (dbs_enable == 0)
|
||||
if (dbs_enable == 0) {
|
||||
dbs_timer_exit();
|
||||
|
||||
cpufreq_unregister_notifier(
|
||||
&dbs_cpufreq_notifier_block,
|
||||
CPUFREQ_TRANSITION_NOTIFIER);
|
||||
}
|
||||
|
||||
mutex_unlock(&dbs_mutex);
|
||||
|
||||
break;
|
||||
|
|
@ -537,11 +564,11 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
|
|||
if (policy->max < this_dbs_info->cur_policy->cur)
|
||||
__cpufreq_driver_target(
|
||||
this_dbs_info->cur_policy,
|
||||
policy->max, CPUFREQ_RELATION_H);
|
||||
policy->max, CPUFREQ_RELATION_H);
|
||||
else if (policy->min > this_dbs_info->cur_policy->cur)
|
||||
__cpufreq_driver_target(
|
||||
this_dbs_info->cur_policy,
|
||||
policy->min, CPUFREQ_RELATION_L);
|
||||
policy->min, CPUFREQ_RELATION_L);
|
||||
mutex_unlock(&dbs_mutex);
|
||||
break;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue