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authorDave Martin <dave.martin@linaro.org>2010-12-13 21:56:03 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-12-14 22:23:34 +0000
commit593c252a731389ffdd00d4cb2d20192c47aa18c1 (patch)
treeac55559cd8307e52d5d94f85bf1bcecb49f3918d
parent6e6fc998b8c127fe06b9350a1f16e41bfe4f109d (diff)
ARM: 6534/1: Make CONFIG_FPE_NWFPE depend on !CONFIG_THUMB2_KERNEL
Because the nwfpe support is unlikely to be used on new platforms and requires CONFIG_OABI_COMPAT, which is not generally used with ARMv7+, we shouldn't expect to build nwfpe support into a Thumb-2 kernel. At present, nwfpe contains assembly code which isn't Thumb-2 compatible, and for now it doesn't appear useful to port this code. All ARMv7-A/R platforms necessarily have VFPv3 hardware floating- point natively, making emulation unnecessary. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index bf1f8dba02f3..d56d21c0573b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1759,7 +1759,7 @@ comment "At least one emulation must be selected"
config FPE_NWFPE
bool "NWFPE math emulation"
- depends on !AEABI || OABI_COMPAT
+ depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
---help---
Say Y to include the NWFPE floating point emulator in the kernel.
This is necessary to run most binaries. Linux does not currently