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powerpc: Add CONFIG_VSX config option

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Add CONFIG_VSX config build option.  Must compile with POWER4, FPU and ALTIVEC.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Neuling
2008-06-25 14:07:18 +10:00
committed by Paul Mackerras
parent ce48b21007
commit 96d5b52c84
1 changed files with 16 additions and 0 deletions
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16
arch/powerpc/platforms/Kconfig.cputype
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@@ -160,6 +160,22 @@ config ALTIVEC
If in doubt, say Y here. 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 config SPE
bool "SPE Support" bool "SPE Support"
depends on E200 || (E500 && !PPC_E500MC) depends on E200 || (E500 && !PPC_E500MC)