Attachment 490327 Details for Bug 756085

[patch] Use x86 CPU autoloading (est feature) for acpi-cpufreq driver loading

x86_acpi_cpufreq_autoload.patch (text/plain), 1.75 KB, created by Thomas Renninger on 2012-05-10 14:18:53 UTC

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Creator: Thomas Renninger

Created: 2012-05-10 14:18:53 UTC

Size: 1.75 KB

patch

obsolete

>---
> drivers/acpi/processor_driver.c |    1 -
> drivers/cpufreq/acpi-cpufreq.c  |    7 +++++++
> include/acpi/processor.h        |    1 -
> 3 files changed, 7 insertions(+), 2 deletions(-)
>
>Index: linux-3.4-rc6-master/drivers/acpi/processor_driver.c
>===================================================================
>--- linux-3.4-rc6-master.orig/drivers/acpi/processor_driver.c
>+++ linux-3.4-rc6-master/drivers/acpi/processor_driver.c
>@@ -474,7 +474,6 @@ static __ref int acpi_processor_start(st
> 
> #ifdef CONFIG_CPU_FREQ
> 	acpi_processor_ppc_has_changed(pr, 0);
>-	acpi_processor_load_module(pr);
> #endif
> 	acpi_processor_get_throttling_info(pr);
> 	acpi_processor_get_limit_info(pr);
>Index: linux-3.4-rc6-master/include/acpi/processor.h
>===================================================================
>--- linux-3.4-rc6-master.orig/include/acpi/processor.h
>+++ linux-3.4-rc6-master/include/acpi/processor.h
>@@ -225,7 +225,6 @@ struct acpi_processor_errata {
> 	} piix4;
> };
> 
>-extern void acpi_processor_load_module(struct acpi_processor *pr);
> extern int acpi_processor_preregister_performance(struct
> 						  acpi_processor_performance
> 						  __percpu *performance);
>Index: linux-3.4-rc6-master/drivers/cpufreq/acpi-cpufreq.c
>===================================================================
>--- linux-3.4-rc6-master.orig/drivers/cpufreq/acpi-cpufreq.c
>+++ linux-3.4-rc6-master/drivers/cpufreq/acpi-cpufreq.c
>@@ -66,6 +66,13 @@ struct acpi_cpufreq_data {
> 	unsigned int cpu_feature;
> };
> 
>+static const struct x86_cpu_id acpi_cpufreq_ids[] = {
>+	/* Enhanced Speed Step */
>+	X86_FEATURE_MATCH(X86_FEATURE_EST),
>+	{}
>+};
>+MODULE_DEVICE_TABLE(x86cpu, acpi_cpufreq_ids);
>+
> static DEFINE_PER_CPU(struct acpi_cpufreq_data *, acfreq_data);
> 
> /* acpi_perf_data is a pointer to percpu data. */

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Attachments on bug 756085: 486921 | 490146 | 490147 | 490327