kconfig: clean CPU features and define only once

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

arch/Kconfig

@@ -191,6 +191,49 @@ config BOOTLOADER_CONTEXT_RESTORE_SUPPORTED
 	This option signifies that the target has options of bootloaders
 	that support context restore upon resume from deep sleep
 
+
+# End hidden CPU family configs
+#
+
+config CPU_HAS_FPU
+	bool
+	default n
+	help
+	  This option is enabled when the CPU has hardware floating point
+	  unit.
+
+config CPU_HAS_MPU
+	bool
+	# Omit prompt to signify "hidden" option
+	default n
+	help
+	  This option is enabled when the CPU has a Memory Protection Unit (MPU).
+
+menu "Floating Point Options"
+depends on CPU_HAS_FPU
+
+config FLOAT
+	bool
+	prompt "Floating point registers"
+	default n
+	help
+	This option allows threads to use the floating point registers.
+	By default, only a single thread may use the registers.
+
+	Disabling this option means that any thread that uses a
+	floating point register will get a fatal exception.
+
+config FP_SHARING
+	bool
+	prompt "Floating point register sharing"
+	depends on FLOAT
+	default n
+	help
+	This option allows multiple threads to use the floating point
+	registers.
+
+endmenu
+
 #
 # End hidden PM feature configs
 #

arch/arc/Kconfig

@@ -24,21 +24,6 @@ config ARCH_DEFCONFIG
 	string
 	default "arch/arc/defconfig"
 
-config CPU_HAS_MPU
-	bool
-	# Omit prompt to signify "hidden" option
-	default n
-	help
-	  This option is enabled when the CPU has a Memory Protection Unit (MPU).
-
-config CPU_HAS_FPU
-	# Hidden config selected by CPU family
-	bool
-	default n
-	help
-	This option is enabled when the CPU has hardware floating point
-	unit.
-
 menu "ARC EM4 processor options"
 
 config	CPU_ARCEM4
@@ -153,31 +138,6 @@ config CODE_DENSITY
 	help
 	Enable code density option to get better code density
 
-menu "Floating Point Options"
-depends on CPU_HAS_FPU
-
-config FLOAT
-	bool
-	prompt "Floating point registers"
-	default n
-	help
-	This option allows threads to use the floating point registers.
-	By default, only a single thread may use the registers.
-
-	Disabling this option means that any thread that uses a
-	floating point register will get a fatal exception.
-
-config FP_SHARING
-	bool
-	prompt "Floating point register sharing"
-	depends on FLOAT
-	default n
-	help
-	This option allows multiple threads to use the floating point
-	registers.
-
-endmenu
-
 menu "ARC MPU Options"
 depends on CPU_HAS_MPU
 

arch/arm/core/Kconfig

@@ -34,21 +34,6 @@ config CPU_HAS_SYSTICK
 	help
 	This option is enabled when the CPU has systick timer implemented.
 
-config CPU_HAS_MPU
-	bool
-	# Omit prompt to signify "hidden" option
-	default n
-	help
-	  This option is enabled when the CPU has a Memory Protection Unit (MPU).
-
-config CPU_HAS_FPU
-	# Hidden config selected by CPU family
-	bool
-	default n
-	help
-	This option is enabled when the CPU has a hardware floating point
-	unit.
-
 config ARM_STACK_PROTECTION
 	bool
 	default y if HW_STACK_PROTECTION
@@ -65,29 +50,9 @@ config ARM_USERSPACE
 	user-level threads that are protected from each other and from
 	crashing the kernel.
 
-menu "Floating Point Options"
+menu "Architectue Floating Point Options"
 depends on CPU_HAS_FPU
 
-config	FLOAT
-	bool
-	prompt "Floating point registers"
-	default n
-	help
-	This option allows threads to use the floating point registers.
-	By default, only a single thread may use the registers.
-
-	Disabling this option means that any thread that uses a
-	floating point register will get a fatal exception.
-
-config	FP_SHARING
-	bool
-	prompt "Floating point register sharing"
-	depends on FLOAT
-	default n
-	help
-	This option allows multiple threads to use the floating point
-	registers.
-
 choice
 	prompt "Floating point ABI"
 	default FP_HARDABI

arch/x86/Kconfig

@@ -46,17 +46,6 @@ config CPU_MINUTEIA
 	bool
 	help
 	This option signifies the use of a CPU from the Minute IA family.
-#
-# End hidden CPU family configs
-#
-
-config CPU_HAS_FPU
-	# Hidden config selected by CPU family
-	bool
-	default n
-	help
-	This option is enabled when the CPU has hardware floating point
-	unit.
 
 menu "Processor Capabilities"
 
@@ -128,37 +117,9 @@ config X86_USERSPACE
 	supporting user-level threads that are protected from each other and
 	from crashing the kernel.
 
-menu "Floating Point Options"
+menu "Architecture Floating Point Options"
 depends on CPU_HAS_FPU
 
-config FLOAT
-	bool
-	prompt "Floating point registers"
-	default n
-	help
-	This option allows threads to use the x87 FPU/MMX registers. The
-	registers may be used by any number of cooperative threads or by
-	a single preemptible thread, but not both, since the kernel does not
-	preserve FPU context information when switching between threads.
-	Additional options must be enabled to permit the use of SSE registers or
-	to permit floating point register use by multiple preemptible threads.
-
-	Disabling this option means that any thread that uses the floating
-	point registers will get a fatal exception.
-
-config FP_SHARING
-	bool
-	prompt "Floating point register sharing"
-	depends on FLOAT
-	default n
-	help
-	This option allows multiple preemptible threads to use the floating
-	point registers. Any preemptible thread that uses the registers must
-	provide stack space where the kernel can save FPU context info during
-	a preemptive context switch. A thread that uses only the x87 FPU/MMX
-	registers must provide 108 bytes of added stack space, while a thread
-	the uses the SSE registers must provide 464 bytes of added stack space.
-
 config SSE
 	bool
 	prompt "SSE registers"