summaryrefslogtreecommitdiff
path: root/arch/i386/kernel/cpu/cpufreq/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'arch/i386/kernel/cpu/cpufreq/Kconfig')
-rw-r--r--arch/i386/kernel/cpu/cpufreq/Kconfig31
1 files changed, 12 insertions, 19 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/Kconfig b/arch/i386/kernel/cpu/cpufreq/Kconfig
index e912aae9473c..d8c6f132dc7a 100644
--- a/arch/i386/kernel/cpu/cpufreq/Kconfig
+++ b/arch/i386/kernel/cpu/cpufreq/Kconfig
@@ -90,10 +90,17 @@ config X86_POWERNOW_K8
If in doubt, say N.
config X86_POWERNOW_K8_ACPI
- bool
- depends on X86_POWERNOW_K8 && ACPI_PROCESSOR
- depends on !(X86_POWERNOW_K8 = y && ACPI_PROCESSOR = m)
+ bool "ACPI Support"
+ select ACPI_PROCESSOR
+ depends on ACPI && X86_POWERNOW_K8
default y
+ help
+ This provides access to the K8s Processor Performance States via ACPI.
+ This driver is probably required for CPUFreq to work with multi-socket and
+ SMP systems. It is not required on at least some single-socket yet
+ multi-core systems, even if SMP is enabled.
+
+ It is safe to say Y here.
config X86_GX_SUSPMOD
tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation"
@@ -109,7 +116,7 @@ config X86_GX_SUSPMOD
config X86_SPEEDSTEP_CENTRINO
tristate "Intel Enhanced SpeedStep"
select CPU_FREQ_TABLE
- select X86_SPEEDSTEP_CENTRINO_TABLE if (!X86_SPEEDSTEP_CENTRINO_ACPI)
+ select X86_SPEEDSTEP_CENTRINO_TABLE
help
This adds the CPUFreq driver for Enhanced SpeedStep enabled
mobile CPUs. This means Intel Pentium M (Centrino) CPUs. However,
@@ -121,20 +128,6 @@ config X86_SPEEDSTEP_CENTRINO
If in doubt, say N.
-config X86_SPEEDSTEP_CENTRINO_ACPI
- bool "Use ACPI tables to decode valid frequency/voltage (deprecated)"
- depends on X86_SPEEDSTEP_CENTRINO && ACPI_PROCESSOR
- depends on !(X86_SPEEDSTEP_CENTRINO = y && ACPI_PROCESSOR = m)
- help
- This is deprecated and this functionality is now merged into
- acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of
- speedstep_centrino.
- Use primarily the information provided in the BIOS ACPI tables
- to determine valid CPU frequency and voltage pairings. It is
- required for the driver to work on non-Banias CPUs.
-
- If in doubt, say Y.
-
config X86_SPEEDSTEP_CENTRINO_TABLE
bool "Built-in tables for Banias CPUs"
depends on X86_SPEEDSTEP_CENTRINO
@@ -230,7 +223,7 @@ comment "shared options"
config X86_ACPI_CPUFREQ_PROC_INTF
bool "/proc/acpi/processor/../performance interface (deprecated)"
depends on PROC_FS
- depends on X86_ACPI_CPUFREQ || X86_SPEEDSTEP_CENTRINO_ACPI || X86_POWERNOW_K7_ACPI || X86_POWERNOW_K8_ACPI
+ depends on X86_ACPI_CPUFREQ || X86_POWERNOW_K7_ACPI || X86_POWERNOW_K8_ACPI
help
This enables the deprecated /proc/acpi/processor/../performance
interface. While it is helpful for debugging, the generic,