diff mbox series

[08/15] ARM: update FPE_NWFPE help text

Message ID 20241204102904.1863796-9-arnd@kernel.org (mailing list archive)
State New
Headers show
Series ARM: platform and feature deprecation | expand

Commit Message

Arnd Bergmann Dec. 4, 2024, 10:28 a.m. UTC 
From: Arnd Bergmann <arnd@arndb.de>

The help text is seriously outdated and predates the introduction of
VFP floating point units that were available as early as some ARM926
based systems.

Change the help text to reflect that this is now a legacy feature
and that it will go away along with OABI support in the future.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/Kconfig | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Comments

Linus Walleij Dec. 4, 2024, 2:06 p.m. UTC | #1 
On Wed, Dec 4, 2024 at 11:30 AM Arnd Bergmann <arnd@kernel.org> wrote:

> From: Arnd Bergmann <arnd@arndb.de>
>
> The help text is seriously outdated and predates the introduction of
> VFP floating point units that were available as early as some ARM926
> based systems.
>
> Change the help text to reflect that this is now a legacy feature
> and that it will go away along with OABI support in the future.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

On my affected silicon everything is custom compiled with
software floating point, so:
Acked-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij
diff mbox series

Patch

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5278764162f8..d92531c3f982 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1661,16 +1661,16 @@  menu "Floating point emulation"
 comment "At least one emulation must be selected"
 
 config FPE_NWFPE
-	bool "NWFPE math emulation"
+	bool "NWFPE math emulation (DEPRECATED)"
 	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
-	  support floating point hardware so you need to say Y here even if
-	  your machine has an FPA or floating point co-processor podule.
 
-	  You may say N here if you are going to load the Acorn FPEmulator
-	  early in the bootup.
+	  This is only used on OABI userspace binaries, either using a
+	  pure OABI (!CONFIG_AEABI) kernel, or the OABI emulation.
+
+	  Support for NWFPE will be removed in the future when OABI
+	  support is removed.
 
 config FPE_NWFPE_XP
 	bool "Support extended precision"