[PATCH 9/9] powerpc: Add CONFIG_VSX config option
From: Michael Neuling <hidden>
Date: 2008-06-23 05:31:29
Add CONFIG_VSX config build option. Must compile with POWER4, FPU and ALTIVEC. Signed-off-by: Michael Neuling <redacted> --- arch/powerpc/platforms/Kconfig.cputype | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) Index: linux-2.6-ozlabs/arch/powerpc/platforms/Kconfig.cputype ===================================================================
--- linux-2.6-ozlabs.orig/arch/powerpc/platforms/Kconfig.cputype
+++ linux-2.6-ozlabs/arch/powerpc/platforms/Kconfig.cputype@@ -171,6 +171,22 @@ config VSX 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