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x86: Fix selection of unsupported FLOAT/SSE Kconfig options

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It makes more sense to have the x86 Kconfig options CPU_FLOAT_UNSUPPORTED
and CPU_SSE_UNSUPPORTED to be selected by the CPU than have those options
dependent upon the selected CPU.

Change-Id: I862baabee6a81cc79206c37a50b8594354a40403
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
This commit is contained in:
Peter Mitsis 2015-07-29 15:35:52 -04:00 • committed by Anas Nashif
commit 9d5599af05
3 changed files with 5 additions and 4 deletions
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7
arch/x86/Kconfig
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@ -77,6 +77,7 @@ config CPU_ATOM
config CPU_MINUTEIA
bool "Minute IA"
select CPU_FLOAT_UNSUPPORTED
help
This option signifies the use of a CPU from the Minute IA family.
endchoice
@ -156,16 +157,14 @@ config CMOV
the CMOV instruction.
config CPU_FLOAT_UNSUPPORTED
def_bool y
depends on CPU_MINUTEIA
def_bool n
select CPU_SSE_UNSUPPORTED
help
This option signifies the use of an Intel CPU that lacks support
for floating point operations.
config CPU_SSE_UNSUPPORTED
bool "CPU SSE unsupported"
default n
def_bool n
help
This option signifies the use of an Intel CPU that lacks support
for SSEx instructions (i.e. those which pre-date Pentium III).

1
arch/x86/configs/micro_basic_atom_defconfig
View file

@ -103,6 +103,7 @@ CONFIG_EOI_HANDLER_SUPPORTED=y
#
CONFIG_ISA_IA32=y
CONFIG_CMOV=y
# CONFIG_CPU_FLOAT_UNSUPPORTED is not set
# CONFIG_CPU_SSE_UNSUPPORTED is not set
CONFIG_CACHE_LINE_SIZE=64

1
arch/x86/configs/nano_basic_atom_defconfig
View file

@ -82,6 +82,7 @@ CONFIG_EOI_HANDLER_SUPPORTED=y
#
CONFIG_ISA_IA32=y
CONFIG_CMOV=y
# CONFIG_CPU_FLOAT_UNSUPPORTED is not set
# CONFIG_CPU_SSE_UNSUPPORTED is not set
CONFIG_CACHE_LINE_SIZE=64