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MIPS: Introduce CONFIG_MIPS_FP_SUPPORT

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Introduce a Kconfig variable that will indicate whether to include
support for floating point in the kernel. For now this is always
enabled, and will be made configurable in a later patch.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/21016/
Cc: linux-mips@linux-mips.org
This commit is contained in:
Paul Burton 2018-11-07 23:14:02 +00:00
parent 97f7dcbf27
commit c92e47e585
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GPG Key ID: 3EA79FACB57500DD
2 changed files with 8 additions and 0 deletions
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7
arch/mips/Kconfig
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@ -2255,12 +2255,17 @@ config CPU_GENERIC_DUMP_TLB
bool
default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
config MIPS_FP_SUPPORT
def_bool y
config CPU_R2300_FPU
bool
depends on MIPS_FP_SUPPORT
default y if CPU_R3000 || CPU_TX39XX
config CPU_R4K_FPU
bool
depends on MIPS_FP_SUPPORT
default y if !CPU_R2300_FPU
config CPU_R4K_CACHE_TLB
@ -2313,6 +2318,7 @@ config MIPS_MT_FPAFF
config MIPSR2_TO_R6_EMULATOR
bool "MIPS R2-to-R6 emulator"
depends on CPU_MIPSR6
depends on MIPS_FP_SUPPORT
default y
help
Choose this option if you want to run non-R6 MIPS userland code.
@ -2460,6 +2466,7 @@ endchoice
config CPU_HAS_MSA
bool "Support for the MIPS SIMD Architecture"
depends on CPU_SUPPORTS_MSA
depends on MIPS_FP_SUPPORT
depends on 64BIT || MIPS_O32_FP64_SUPPORT
help
MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers

1
arch/mips/kvm/Kconfig
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@ -18,6 +18,7 @@ if VIRTUALIZATION
config KVM
tristate "Kernel-based Virtual Machine (KVM) support"
depends on HAVE_KVM
depends on MIPS_FP_SUPPORT
select EXPORT_UASM
select PREEMPT_NOTIFIERS
select ANON_INODES