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ACPI: cpufreq: Remove deprecated /proc/acpi/processor/../performance proc entries
They were long enough set deprecated... Update Documentation/cpu-freq/users-guide.txt: The deprecated files listed there seen not to exist for some time anymore already. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -195,19 +195,3 @@ scaling_setspeed. By "echoing" a new frequency into this
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you can change the speed of the CPU,
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but only within the limits of
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scaling_min_freq and scaling_max_freq.
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3.2 Deprecated Interfaces
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-------------------------
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Depending on your kernel configuration, you might find the following
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cpufreq-related files:
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/proc/cpufreq
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/proc/sys/cpu/*/speed
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/proc/sys/cpu/*/speed-min
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/proc/sys/cpu/*/speed-max
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These are files for deprecated interfaces to cpufreq, which offer far
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less functionality. Because of this, these interfaces aren't described
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here.
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@ -245,17 +245,6 @@ config X86_E_POWERSAVER
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comment "shared options"
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config X86_ACPI_CPUFREQ_PROC_INTF
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bool "/proc/acpi/processor/../performance interface (deprecated)"
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depends on PROC_FS
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depends on X86_ACPI_CPUFREQ || X86_POWERNOW_K7_ACPI || X86_POWERNOW_K8_ACPI
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help
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This enables the deprecated /proc/acpi/processor/../performance
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interface. While it is helpful for debugging, the generic,
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cross-architecture cpufreq interfaces should be used.
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If in doubt, say N.
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config X86_SPEEDSTEP_LIB
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tristate
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default (X86_SPEEDSTEP_ICH || X86_SPEEDSTEP_SMI || X86_P4_CLOCKMOD)
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@ -31,14 +31,6 @@
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#include <linux/init.h>
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#include <linux/cpufreq.h>
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#ifdef CONFIG_X86_ACPI_CPUFREQ_PROC_INTF
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/mutex.h>
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#include <asm/uaccess.h>
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#endif
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#ifdef CONFIG_X86
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#include <asm/cpufeature.h>
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#endif
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@ -434,96 +426,6 @@ int acpi_processor_notify_smm(struct module *calling_module)
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EXPORT_SYMBOL(acpi_processor_notify_smm);
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#ifdef CONFIG_X86_ACPI_CPUFREQ_PROC_INTF
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/* /proc/acpi/processor/../performance interface (DEPRECATED) */
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static int acpi_processor_perf_open_fs(struct inode *inode, struct file *file);
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static struct file_operations acpi_processor_perf_fops = {
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.owner = THIS_MODULE,
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.open = acpi_processor_perf_open_fs,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int acpi_processor_perf_seq_show(struct seq_file *seq, void *offset)
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{
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struct acpi_processor *pr = seq->private;
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int i;
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if (!pr)
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goto end;
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if (!pr->performance) {
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seq_puts(seq, "<not supported>\n");
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goto end;
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}
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seq_printf(seq, "state count: %d\n"
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"active state: P%d\n",
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pr->performance->state_count, pr->performance->state);
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seq_puts(seq, "states:\n");
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for (i = 0; i < pr->performance->state_count; i++)
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seq_printf(seq,
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" %cP%d: %d MHz, %d mW, %d uS\n",
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(i == pr->performance->state ? '*' : ' '), i,
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(u32) pr->performance->states[i].core_frequency,
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(u32) pr->performance->states[i].power,
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(u32) pr->performance->states[i].transition_latency);
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end:
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return 0;
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}
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static int acpi_processor_perf_open_fs(struct inode *inode, struct file *file)
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{
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return single_open(file, acpi_processor_perf_seq_show,
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PDE(inode)->data);
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}
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static void acpi_cpufreq_add_file(struct acpi_processor *pr)
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{
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struct acpi_device *device = NULL;
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if (acpi_bus_get_device(pr->handle, &device))
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return;
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/* add file 'performance' [R/W] */
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proc_create_data(ACPI_PROCESSOR_FILE_PERFORMANCE, S_IFREG | S_IRUGO,
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acpi_device_dir(device),
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&acpi_processor_perf_fops, acpi_driver_data(device));
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return;
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}
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static void acpi_cpufreq_remove_file(struct acpi_processor *pr)
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{
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struct acpi_device *device = NULL;
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if (acpi_bus_get_device(pr->handle, &device))
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return;
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/* remove file 'performance' */
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remove_proc_entry(ACPI_PROCESSOR_FILE_PERFORMANCE,
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acpi_device_dir(device));
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return;
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}
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#else
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static void acpi_cpufreq_add_file(struct acpi_processor *pr)
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{
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return;
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}
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static void acpi_cpufreq_remove_file(struct acpi_processor *pr)
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{
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return;
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}
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#endif /* CONFIG_X86_ACPI_CPUFREQ_PROC_INTF */
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static int acpi_processor_get_psd(struct acpi_processor *pr)
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{
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int result = 0;
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@ -747,14 +649,12 @@ err_ret:
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}
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EXPORT_SYMBOL(acpi_processor_preregister_performance);
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int
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acpi_processor_register_performance(struct acpi_processor_performance
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*performance, unsigned int cpu)
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{
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struct acpi_processor *pr;
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if (!(acpi_processor_ppc_status & PPC_REGISTERED))
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return -EINVAL;
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@ -781,8 +681,6 @@ acpi_processor_register_performance(struct acpi_processor_performance
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return -EIO;
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}
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acpi_cpufreq_add_file(pr);
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mutex_unlock(&performance_mutex);
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return 0;
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}
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@ -795,7 +693,6 @@ acpi_processor_unregister_performance(struct acpi_processor_performance
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{
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struct acpi_processor *pr;
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mutex_lock(&performance_mutex);
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pr = per_cpu(processors, cpu);
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@ -808,8 +705,6 @@ acpi_processor_unregister_performance(struct acpi_processor_performance
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kfree(pr->performance->states);
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pr->performance = NULL;
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acpi_cpufreq_remove_file(pr);
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mutex_unlock(&performance_mutex);
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return;
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