From: Michael Neuling Date: Wed, 25 Jun 2008 04:07:18 +0000 (+1000) Subject: powerpc: Add CONFIG_VSX config option X-Git-Tag: v2.6.27-rc1~1058^2~77 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=96d5b52c8473ae6ee63d592474bcc1255df06102;p=linux-2.6 powerpc: Add CONFIG_VSX config option Add CONFIG_VSX config build option. Must compile with POWER4, FPU and ALTIVEC. Signed-off-by: Michael Neuling Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index c66b8ed7e7..5bc4b611ff 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -160,6 +160,22 @@ config ALTIVEC If in doubt, say Y here. +config VSX + bool "VSX Support" + depends on POWER4 && ALTIVEC && PPC_FPU + ---help--- + + This option enables kernel support for the Vector Scaler extensions + to the PowerPC processor. The kernel currently supports saving and + restoring VSX registers, and turning on the 'VSX enable' bit so user + processes can execute VSX instructions. + + This option is only useful if you have a processor that supports + VSX (P7 and above), but does not have any affect on a non-VSX + CPUs (it does, however add code to the kernel). + + If in doubt, say Y here. + config SPE bool "SPE Support" depends on E200 || (E500 && !PPC_E500MC)