MIPS: Introduce CONFIG_MIPS_FP_SUPPORT

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

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b3f36c2..5ea3dc4 100644 (file)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -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

diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig
index 76b93a9..760aec7 100644 (file)
--- a/arch/mips/kvm/Kconfig
+++ b/arch/mips/kvm/Kconfig
@@ -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