x86: unification of cfufreq/Kconfig

Merge the two Kconfig files to a single file. Checked using make allmodconfig for x86_64. No changes in build. Signed-off-by: Sam Ravnborg <[email protected]> Cc: Adrian Bunk <[email protected]> Cc: Dave Jones <[email protected]>
matteopt · Nov 12, 2007 · e8ef952 · e8ef952
1 parent 6e800af
commit e8ef952
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Showing 4 changed files with 49 additions and 132 deletions.
diff --git a/arch/x86/Kconfig.i386 b/arch/x86/Kconfig.i386
@@ -1092,7 +1092,7 @@ config APM_REAL_MODE_POWER_OFF
 
 endif # APM
 
-source "arch/x86/kernel/cpu/cpufreq/Kconfig_32"
+source "arch/x86/kernel/cpu/cpufreq/Kconfig"
 
 source "drivers/cpuidle/Kconfig"
 

diff --git a/arch/x86/Kconfig.x86_64 b/arch/x86/Kconfig.x86_64
@@ -719,7 +719,7 @@ config ARCH_HIBERNATION_HEADER
 
 source "drivers/acpi/Kconfig"
 
-source "arch/x86/kernel/cpu/cpufreq/Kconfig_64"
+source "arch/x86/kernel/cpu/cpufreq/Kconfig"
 
 source "drivers/cpuidle/Kconfig"
 

diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig_32 → arch/x86/kernel/cpu/cpufreq/Kconfig b/arch/x86/kernel/cpu/cpufreq/Kconfig_32 → arch/x86/kernel/cpu/cpufreq/Kconfig
@@ -19,14 +19,17 @@ config X86_ACPI_CPUFREQ
 	  Processor Performance States.
 	  This driver also supports Intel Enhanced Speedstep.
 
+	  To compile this driver as a module, choose M here: the
+	  module will be called acpi-cpufreq.
+
 	  For details, take a look at <file:Documentation/cpu-freq/>.
 
 	  If in doubt, say N.
 
 config ELAN_CPUFREQ
 	tristate "AMD Elan SC400 and SC410"
 	select CPU_FREQ_TABLE
-	depends on X86_ELAN
+	depends on X86_32 && X86_ELAN
 	---help---
 	  This adds the CPUFreq driver for AMD Elan SC400 and SC410
 	  processors.
@@ -42,7 +45,7 @@ config ELAN_CPUFREQ
 config SC520_CPUFREQ
 	tristate "AMD Elan SC520"
 	select CPU_FREQ_TABLE
-	depends on X86_ELAN
+	depends on X86_32 && X86_ELAN
 	---help---
 	  This adds the CPUFreq driver for AMD Elan SC520 processor.
 
@@ -54,6 +57,7 @@ config SC520_CPUFREQ
 config X86_POWERNOW_K6
 	tristate "AMD Mobile K6-2/K6-3 PowerNow!"
 	select CPU_FREQ_TABLE
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for mobile AMD K6-2+ and mobile
 	  AMD K6-3+ processors.
@@ -65,6 +69,7 @@ config X86_POWERNOW_K6
 config X86_POWERNOW_K7
 	tristate "AMD Mobile Athlon/Duron PowerNow!"
 	select CPU_FREQ_TABLE
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for mobile AMD K7 mobile processors.
 
@@ -76,23 +81,27 @@ config X86_POWERNOW_K7_ACPI
 	bool
 	depends on X86_POWERNOW_K7 && ACPI_PROCESSOR
 	depends on !(X86_POWERNOW_K7 = y && ACPI_PROCESSOR = m)
+	depends on X86_32
 	default y
 
 config X86_POWERNOW_K8
 	tristate "AMD Opteron/Athlon64 PowerNow!"
 	select CPU_FREQ_TABLE
-	depends on EXPERIMENTAL
 	help
 	  This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors.
 
+	  To compile this driver as a module, choose M here: the
+	  module will be called powernow-k8.
+
 	  For details, take a look at <file:Documentation/cpu-freq/>.
 
 	  If in doubt, say N.
 
 config X86_POWERNOW_K8_ACPI
-	bool "ACPI Support"
-	select ACPI_PROCESSOR
-	depends on ACPI && X86_POWERNOW_K8
+	bool
+	prompt "ACPI Support" if X86_32
+	depends on ACPI && X86_POWERNOW_K8 && ACPI_PROCESSOR
+	depends on !(X86_POWERNOW_K8 = y && ACPI_PROCESSOR = m)
 	default y
 	help
 	  This provides access to the K8s Processor Performance States via ACPI.
@@ -104,7 +113,7 @@ config X86_POWERNOW_K8_ACPI
 
 config X86_GX_SUSPMOD
 	tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation"
-	depends on PCI
+	depends on X86_32 && PCI
 	help
 	 This add the CPUFreq driver for NatSemi Geode processors which
 	 support suspend modulation.
@@ -114,23 +123,28 @@ config X86_GX_SUSPMOD
 	 If in doubt, say N.
 
 config X86_SPEEDSTEP_CENTRINO
-	tristate "Intel Enhanced SpeedStep"
+	tristate "Intel Enhanced SpeedStep (deprecated)"
 	select CPU_FREQ_TABLE
-	select X86_SPEEDSTEP_CENTRINO_TABLE
+	select X86_SPEEDSTEP_CENTRINO_TABLE if X86_32
+	depends on X86_32 || (X86_64 && ACPI_PROCESSOR)
 	help
+	  This is deprecated and this functionality is now merged into
+	  acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of
+	  speedstep_centrino.
 	  This adds the CPUFreq driver for Enhanced SpeedStep enabled
-	  mobile CPUs.  This means Intel Pentium M (Centrino) CPUs. However,
-	  you also need to say Y to "Use ACPI tables to decode..." below
-	  [which might imply enabling ACPI] if you want to use this driver
-	  on non-Banias CPUs.
+	  mobile CPUs.  This means Intel Pentium M (Centrino) CPUs
+	  or 64bit enabled Intel Xeons.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called speedstep-centrino.
 
 	  For details, take a look at <file:Documentation/cpu-freq/>.
 
 	  If in doubt, say N.
 
 config X86_SPEEDSTEP_CENTRINO_TABLE
 	bool "Built-in tables for Banias CPUs"
-	depends on X86_SPEEDSTEP_CENTRINO
+	depends on X86_32 && X86_SPEEDSTEP_CENTRINO
 	default y
 	help
 	  Use built-in tables for Banias CPUs if ACPI encoding
@@ -141,6 +155,7 @@ config X86_SPEEDSTEP_CENTRINO_TABLE
 config X86_SPEEDSTEP_ICH
 	tristate "Intel Speedstep on ICH-M chipsets (ioport interface)"
 	select CPU_FREQ_TABLE
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for certain mobile Intel Pentium III
 	  (Coppermine), all mobile Intel Pentium III-M (Tualatin) and all
@@ -154,7 +169,7 @@ config X86_SPEEDSTEP_ICH
 config X86_SPEEDSTEP_SMI
 	tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)"
 	select CPU_FREQ_TABLE
-	depends on EXPERIMENTAL
+	depends on X86_32 && EXPERIMENTAL
 	help
 	  This adds the CPUFreq driver for certain mobile Intel Pentium III
 	  (Coppermine), all mobile Intel Pentium III-M (Tualatin)
@@ -169,15 +184,24 @@ config X86_P4_CLOCKMOD
 	select CPU_FREQ_TABLE
 	help
 	  This adds the CPUFreq driver for Intel Pentium 4 / XEON
-	  processors.
+	  processors.  When enabled it will lower CPU temperature by skipping
+	  clocks.
+
+	  This driver should be only used in exceptional
+	  circumstances when very low power is needed because it causes severe
+	  slowdowns and noticeable latencies.  Normally Speedstep should be used
+	  instead.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called p4-clockmod.
 
 	  For details, take a look at <file:Documentation/cpu-freq/>.
 
-	  If in doubt, say N.
+	  Unless you are absolutely sure say N.
 
 config X86_CPUFREQ_NFORCE2
 	tristate "nVidia nForce2 FSB changing"
-	depends on EXPERIMENTAL
+	depends on X86_32 && EXPERIMENTAL
 	help
 	  This adds the CPUFreq driver for FSB changing on nVidia nForce2
 	  platforms.
@@ -188,6 +212,7 @@ config X86_CPUFREQ_NFORCE2
 
 config X86_LONGRUN
 	tristate "Transmeta LongRun"
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for Transmeta Crusoe and Efficeon processors
 	  which support LongRun.
@@ -199,7 +224,7 @@ config X86_LONGRUN
 config X86_LONGHAUL
 	tristate "VIA Cyrix III Longhaul"
 	select CPU_FREQ_TABLE
-	depends on ACPI_PROCESSOR
+	depends on X86_32 && ACPI_PROCESSOR
 	help
 	  This adds the CPUFreq driver for VIA Samuel/CyrixIII,
 	  VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T
@@ -212,7 +237,7 @@ config X86_LONGHAUL
 config X86_E_POWERSAVER
 	tristate "VIA C7 Enhanced PowerSaver (EXPERIMENTAL)"
 	select CPU_FREQ_TABLE
-	depends on EXPERIMENTAL
+	depends on X86_32 && EXPERIMENTAL
 	help
 	  This adds the CPUFreq driver for VIA C7 processors.
 
@@ -233,11 +258,11 @@ config X86_ACPI_CPUFREQ_PROC_INTF
 
 config X86_SPEEDSTEP_LIB
 	tristate
-	default X86_SPEEDSTEP_ICH || X86_SPEEDSTEP_SMI || X86_P4_CLOCKMOD
+	default (X86_SPEEDSTEP_ICH || X86_SPEEDSTEP_SMI || X86_P4_CLOCKMOD)
 
 config X86_SPEEDSTEP_RELAXED_CAP_CHECK
 	bool "Relaxed speedstep capability checks"
-	depends on (X86_SPEEDSTEP_SMI || X86_SPEEDSTEP_ICH)
+	depends on X86_32 && (X86_SPEEDSTEP_SMI || X86_SPEEDSTEP_ICH)
 	help
 	  Don't perform all checks for a speedstep capable system which would
 	  normally be done. Some ancient or strange systems, though speedstep

diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig_64 b/arch/x86/kernel/cpu/cpufreq/Kconfig_64