From: dave.martin@linaro.org (Dave Martin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] ARM: Make CONFIG_FPE_NWFPE depend on !CONFIG_THUMB2_KERNEL
Date: Thu, 9 Dec 2010 11:59:42 +0000 [thread overview]
Message-ID: <1291895982-4775-3-git-send-email-dave.martin@linaro.org> (raw)
In-Reply-To: <1291895982-4775-1-git-send-email-dave.martin@linaro.org>
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>
---
arch/arm/Kconfig | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f9ca7f3..7e825c3 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
--
1.7.1
next prev parent reply other threads:[~2010-12-09 11:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-09 11:59 [PATCH 0/2] ARM: Thumb-2: Fix Kconfig rules to avoid nonworking configs Dave Martin
2010-12-09 11:59 ` [PATCH 1/2] ARM: Thumb-2: Make CONFIG_THUMB2_KERNEL depend on !CPU_V6 Dave Martin
2010-12-09 18:34 ` Nicolas Pitre
2010-12-10 5:47 ` Santosh Shilimkar
2011-02-04 10:47 ` Santosh Shilimkar
2010-12-09 11:59 ` Dave Martin [this message]
2010-12-09 18:32 ` [PATCH 2/2] ARM: Make CONFIG_FPE_NWFPE depend on !CONFIG_THUMB2_KERNEL Nicolas Pitre
2010-12-10 5:48 ` Santosh Shilimkar
2011-02-04 10:47 ` Santosh Shilimkar
2011-02-04 11:03 ` Russell King - ARM Linux
2011-02-04 12:01 ` Dave Martin
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