ACPI: Fix comment typos
Fix some misspellings in comments. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
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8c2ffd9174
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603fadf336
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@ -390,7 +390,7 @@ again:
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return size > 0 ? size : ret;
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}
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static int acpi_aml_thread(void *unsed)
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static int acpi_aml_thread(void *unused)
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{
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acpi_osd_exec_callback function = NULL;
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void *context;
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@ -22,7 +22,7 @@
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* LPAT conversion table
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*
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* @lpat_table: the temperature_raw mapping table structure
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* @raw: the raw value, used as a key to get the temerature from the
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* @raw: the raw value, used as a key to get the temperature from the
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* above mapping table
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*
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* A positive converted temperature value will be returned on success,
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@ -81,9 +81,9 @@ struct cppc_pcc_data {
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int refcount;
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};
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/* Array to represent the PCC channel per subspace id */
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/* Array to represent the PCC channel per subspace ID */
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static struct cppc_pcc_data *pcc_data[MAX_PCC_SUBSPACES];
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/* The cpu_pcc_subspace_idx containsper CPU subspace id */
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/* The cpu_pcc_subspace_idx contains per CPU subspace ID */
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static DEFINE_PER_CPU(int, cpu_pcc_subspace_idx);
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/*
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@ -436,7 +436,7 @@ int acpi_get_psd_map(struct cppc_cpudata **all_cpu_data)
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return -ENOMEM;
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/*
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* Now that we have _PSD data from all CPUs, lets setup P-state
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* Now that we have _PSD data from all CPUs, let's setup P-state
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* domain info.
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*/
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for_each_possible_cpu(i) {
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@ -588,7 +588,7 @@ static int register_pcc_channel(int pcc_ss_idx)
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return -ENOMEM;
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}
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/* Set flag so that we dont come here for each CPU. */
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/* Set flag so that we don't come here for each CPU. */
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pcc_data[pcc_ss_idx]->pcc_channel_acquired = true;
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}
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@ -613,7 +613,7 @@ bool __weak cpc_ffh_supported(void)
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*
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* Check and allocate the cppc_pcc_data memory.
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* In some processor configurations it is possible that same subspace
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* is shared between multiple CPU's. This is seen especially in CPU's
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* is shared between multiple CPUs. This is seen especially in CPUs
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* with hardware multi-threading support.
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*
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* Return: 0 for success, errno for failure
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@ -711,7 +711,7 @@ static bool is_cppc_supported(int revision, int num_ent)
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/**
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* acpi_cppc_processor_probe - Search for per CPU _CPC objects.
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* @pr: Ptr to acpi_processor containing this CPUs logical Id.
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* @pr: Ptr to acpi_processor containing this CPU's logical ID.
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*
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* Return: 0 for success or negative value for err.
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*/
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@ -728,7 +728,7 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
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acpi_status status;
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int ret = -EFAULT;
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/* Parse the ACPI _CPC table for this cpu. */
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/* Parse the ACPI _CPC table for this CPU. */
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status = acpi_evaluate_object_typed(handle, "_CPC", NULL, &output,
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ACPI_TYPE_PACKAGE);
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if (ACPI_FAILURE(status)) {
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@ -840,7 +840,7 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
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if (ret)
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goto out_free;
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/* Register PCC channel once for all PCC subspace id. */
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/* Register PCC channel once for all PCC subspace ID. */
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if (pcc_subspace_id >= 0 && !pcc_data[pcc_subspace_id]->pcc_channel_acquired) {
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ret = register_pcc_channel(pcc_subspace_id);
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if (ret)
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@ -860,7 +860,7 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
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goto out_free;
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}
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/* Plug PSD data into this CPUs CPC descriptor. */
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/* Plug PSD data into this CPU's CPC descriptor. */
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per_cpu(cpc_desc_ptr, pr->id) = cpc_ptr;
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ret = kobject_init_and_add(&cpc_ptr->kobj, &cppc_ktype, &cpu_dev->kobj,
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@ -891,7 +891,7 @@ EXPORT_SYMBOL_GPL(acpi_cppc_processor_probe);
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/**
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* acpi_cppc_processor_exit - Cleanup CPC structs.
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* @pr: Ptr to acpi_processor containing this CPUs logical Id.
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* @pr: Ptr to acpi_processor containing this CPU's logical ID.
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*
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* Return: Void
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*/
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@ -931,7 +931,7 @@ EXPORT_SYMBOL_GPL(acpi_cppc_processor_exit);
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/**
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* cpc_read_ffh() - Read FFH register
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* @cpunum: cpu number to read
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* @cpunum: CPU number to read
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* @reg: cppc register information
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* @val: place holder for return value
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*
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@ -946,7 +946,7 @@ int __weak cpc_read_ffh(int cpunum, struct cpc_reg *reg, u64 *val)
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/**
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* cpc_write_ffh() - Write FFH register
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* @cpunum: cpu number to write
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* @cpunum: CPU number to write
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* @reg: cppc register information
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* @val: value to write
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*
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@ -1093,7 +1093,7 @@ int cppc_get_desired_perf(int cpunum, u64 *desired_perf)
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EXPORT_SYMBOL_GPL(cppc_get_desired_perf);
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/**
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* cppc_get_perf_caps - Get a CPUs performance capabilities.
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* cppc_get_perf_caps - Get a CPU's performance capabilities.
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* @cpunum: CPU from which to get capabilities info.
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* @perf_caps: ptr to cppc_perf_caps. See cppc_acpi.h
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*
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@ -1178,7 +1178,7 @@ out_err:
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EXPORT_SYMBOL_GPL(cppc_get_perf_caps);
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/**
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* cppc_get_perf_ctrs - Read a CPUs performance feedback counters.
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* cppc_get_perf_ctrs - Read a CPU's performance feedback counters.
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* @cpunum: CPU from which to read counters.
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* @perf_fb_ctrs: ptr to cppc_perf_fb_ctrs. See cppc_acpi.h
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*
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@ -1205,7 +1205,7 @@ int cppc_get_perf_ctrs(int cpunum, struct cppc_perf_fb_ctrs *perf_fb_ctrs)
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ctr_wrap_reg = &cpc_desc->cpc_regs[CTR_WRAP_TIME];
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/*
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* If refernce perf register is not supported then we should
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* If reference perf register is not supported then we should
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* use the nominal perf value
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*/
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if (!CPC_SUPPORTED(ref_perf_reg))
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@ -1258,7 +1258,7 @@ out_err:
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EXPORT_SYMBOL_GPL(cppc_get_perf_ctrs);
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/**
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* cppc_set_perf - Set a CPUs performance controls.
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* cppc_set_perf - Set a CPU's performance controls.
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* @cpu: CPU for which to set performance controls.
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* @perf_ctrls: ptr to cppc_perf_ctrls. See cppc_acpi.h
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*
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@ -1339,7 +1339,7 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls)
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* executing the Phase-II.
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* 2. Some other CPU has beaten this CPU to successfully execute the
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* write_trylock and has already acquired the write_lock. We know for a
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* fact it(other CPU acquiring the write_lock) couldn't have happened
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* fact it (other CPU acquiring the write_lock) couldn't have happened
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* before this CPU's Phase-I as we held the read_lock.
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* 3. Some other CPU executing pcc CMD_READ has stolen the
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* down_write, in which case, send_pcc_cmd will check for pending
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@ -535,12 +535,12 @@ int acpi_device_sleep_wake(struct acpi_device *dev,
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/*
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* Try to execute _DSW first.
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*
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* Three agruments are needed for the _DSW object:
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* Three arguments are needed for the _DSW object:
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* Argument 0: enable/disable the wake capabilities
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* Argument 1: target system state
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* Argument 2: target device state
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* When _DSW object is called to disable the wake capabilities, maybe
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* the first argument is filled. The values of the other two agruments
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* the first argument is filled. The values of the other two arguments
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* are meaningless.
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*/
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in_arg[0].type = ACPI_TYPE_INTEGER;
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@ -164,7 +164,7 @@ static struct acpi_pptt_cache *acpi_find_cache_level(struct acpi_table_header *t
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}
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/**
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* acpi_count_levels() - Given a PPTT table, and a cpu node, count the caches
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* acpi_count_levels() - Given a PPTT table, and a CPU node, count the caches
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* @table_hdr: Pointer to the head of the PPTT table
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* @cpu_node: processor node we wish to count caches for
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*
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@ -235,7 +235,7 @@ static int acpi_pptt_leaf_node(struct acpi_table_header *table_hdr,
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/**
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* acpi_find_processor_node() - Given a PPTT table find the requested processor
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* @table_hdr: Pointer to the head of the PPTT table
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* @acpi_cpu_id: cpu we are searching for
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* @acpi_cpu_id: CPU we are searching for
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*
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* Find the subtable entry describing the provided processor.
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* This is done by iterating the PPTT table looking for processor nodes
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@ -456,21 +456,21 @@ static struct acpi_pptt_processor *acpi_find_processor_package_id(struct acpi_ta
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static void acpi_pptt_warn_missing(void)
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{
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pr_warn_once("No PPTT table found, cpu and cache topology may be inaccurate\n");
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pr_warn_once("No PPTT table found, CPU and cache topology may be inaccurate\n");
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}
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/**
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* topology_get_acpi_cpu_tag() - Find a unique topology value for a feature
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* @table: Pointer to the head of the PPTT table
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* @cpu: Kernel logical cpu number
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* @cpu: Kernel logical CPU number
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* @level: A level that terminates the search
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* @flag: A flag which terminates the search
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*
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* Get a unique value given a cpu, and a topology level, that can be
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* Get a unique value given a CPU, and a topology level, that can be
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* matched to determine which cpus share common topological features
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* at that level.
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*
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* Return: Unique value, or -ENOENT if unable to locate cpu
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* Return: Unique value, or -ENOENT if unable to locate CPU
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*/
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static int topology_get_acpi_cpu_tag(struct acpi_table_header *table,
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unsigned int cpu, int level, int flag)
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return -ENOENT;
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}
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retval = topology_get_acpi_cpu_tag(table, cpu, level, flag);
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pr_debug("Topology Setup ACPI cpu %d, level %d ret = %d\n",
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pr_debug("Topology Setup ACPI CPU %d, level %d ret = %d\n",
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cpu, level, retval);
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acpi_put_table(table);
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@ -519,9 +519,9 @@ static int find_acpi_cpu_topology_tag(unsigned int cpu, int level, int flag)
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/**
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* acpi_find_last_cache_level() - Determines the number of cache levels for a PE
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* @cpu: Kernel logical cpu number
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* @cpu: Kernel logical CPU number
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*
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* Given a logical cpu number, returns the number of levels of cache represented
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* Given a logical CPU number, returns the number of levels of cache represented
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* in the PPTT. Errors caused by lack of a PPTT table, or otherwise, return 0
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* indicating we didn't find any cache levels.
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*
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@ -534,7 +534,7 @@ int acpi_find_last_cache_level(unsigned int cpu)
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int number_of_levels = 0;
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acpi_status status;
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pr_debug("Cache Setup find last level cpu=%d\n", cpu);
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pr_debug("Cache Setup find last level CPU=%d\n", cpu);
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acpi_cpu_id = get_acpi_id_for_cpu(cpu);
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status = acpi_get_table(ACPI_SIG_PPTT, 0, &table);
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@ -551,14 +551,14 @@ int acpi_find_last_cache_level(unsigned int cpu)
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/**
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* cache_setup_acpi() - Override CPU cache topology with data from the PPTT
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* @cpu: Kernel logical cpu number
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* @cpu: Kernel logical CPU number
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*
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* Updates the global cache info provided by cpu_get_cacheinfo()
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* when there are valid properties in the acpi_pptt_cache nodes. A
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* successful parse may not result in any updates if none of the
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* cache levels have any valid flags set. Futher, a unique value is
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* cache levels have any valid flags set. Further, a unique value is
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* associated with each known CPU cache entry. This unique value
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* can be used to determine whether caches are shared between cpus.
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* can be used to determine whether caches are shared between CPUs.
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*
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* Return: -ENOENT on failure to find table, or 0 on success
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*/
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@ -567,7 +567,7 @@ int cache_setup_acpi(unsigned int cpu)
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struct acpi_table_header *table;
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acpi_status status;
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pr_debug("Cache Setup ACPI cpu %d\n", cpu);
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pr_debug("Cache Setup ACPI CPU %d\n", cpu);
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status = acpi_get_table(ACPI_SIG_PPTT, 0, &table);
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if (ACPI_FAILURE(status)) {
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@ -582,8 +582,8 @@ int cache_setup_acpi(unsigned int cpu)
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}
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/**
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* find_acpi_cpu_topology() - Determine a unique topology value for a given cpu
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* @cpu: Kernel logical cpu number
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* find_acpi_cpu_topology() - Determine a unique topology value for a given CPU
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* @cpu: Kernel logical CPU number
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* @level: The topological level for which we would like a unique ID
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*
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* Determine a topology unique ID for each thread/core/cluster/mc_grouping
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@ -596,7 +596,7 @@ int cache_setup_acpi(unsigned int cpu)
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* other levels beyond this use a generated value to uniquely identify
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* a topological feature.
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*
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* Return: -ENOENT if the PPTT doesn't exist, or the cpu cannot be found.
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* Return: -ENOENT if the PPTT doesn't exist, or the CPU cannot be found.
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* Otherwise returns a value which represents a unique topological feature.
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*/
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int find_acpi_cpu_topology(unsigned int cpu, int level)
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@ -606,12 +606,12 @@ int find_acpi_cpu_topology(unsigned int cpu, int level)
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/**
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* find_acpi_cpu_cache_topology() - Determine a unique cache topology value
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* @cpu: Kernel logical cpu number
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* @cpu: Kernel logical CPU number
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* @level: The cache level for which we would like a unique ID
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*
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* Determine a unique ID for each unified cache in the system
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*
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* Return: -ENOENT if the PPTT doesn't exist, or the cpu cannot be found.
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* Return: -ENOENT if the PPTT doesn't exist, or the CPU cannot be found.
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* Otherwise returns a value which represents a unique topological feature.
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*/
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int find_acpi_cpu_cache_topology(unsigned int cpu, int level)
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/**
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* find_acpi_cpu_topology_package() - Determine a unique cpu package value
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* @cpu: Kernel logical cpu number
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* find_acpi_cpu_topology_package() - Determine a unique CPU package value
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* @cpu: Kernel logical CPU number
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*
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* Determine a topology unique package ID for the given cpu.
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* Determine a topology unique package ID for the given CPU.
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* This ID can then be used to group peers, which will have matching ids.
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*
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* The search terminates when either a level is found with the PHYSICAL_PACKAGE
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* flag set or we reach a root node.
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*
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* Return: -ENOENT if the PPTT doesn't exist, or the cpu cannot be found.
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* Otherwise returns a value which represents the package for this cpu.
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* Return: -ENOENT if the PPTT doesn't exist, or the CPU cannot be found.
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* Otherwise returns a value which represents the package for this CPU.
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*/
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int find_acpi_cpu_topology_package(unsigned int cpu)
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{
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@ -895,7 +895,7 @@ static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
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/*
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* Call _PSW/_DSW object to disable its ability to wake the sleeping
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* system for the ACPI device with the _PRW object.
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* The _PSW object is depreciated in ACPI 3.0 and is replaced by _DSW.
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* The _PSW object is deprecated in ACPI 3.0 and is replaced by _DSW.
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* So it is necessary to call _DSW object first. Only when it is not
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* present will the _PSW object used.
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*/
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@ -28,7 +28,7 @@ EXPORT_SYMBOL(qdf2400_e44_present);
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/*
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* Some Qualcomm Datacenter Technologies SoCs have a defective UART BUSY bit.
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* Detect them by examining the OEM fields in the SPCR header, similiar to PCI
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* Detect them by examining the OEM fields in the SPCR header, similar to PCI
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* quirk detection in pci_mcfg.c.
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*/
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static bool qdf2400_erratum_44_present(struct acpi_table_header *h)
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@ -112,7 +112,7 @@ static int video_detect_force_none(const struct dmi_system_id *d)
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static const struct dmi_system_id video_detect_dmi_table[] = {
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/* On Samsung X360, the BIOS will set a flag (VDRV) if generic
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* ACPI backlight device is used. This flag will definitively break
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* the backlight interface (even the vendor interface) untill next
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* the backlight interface (even the vendor interface) until next
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* reboot. It's why we should prevent video.ko from being used here
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* and we can't rely on a later call to acpi_video_unregister().
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*/
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