powerpc/math-emu: Allow math-emu to be used for HW FPU
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Sun, 9 Jun 2013 07:01:24 +0000 (17:01 +1000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Thu, 20 Jun 2013 07:05:09 +0000 (17:05 +1000)
commit4e63f8edfe4d6f20b1af176efc022c2b2f5e7aeb
tree5fd40bcbe3b23b8c055e1f8bd543ec125c9f98d6
parent04ae9001719c3f0012d239a7c5aa4136f6b6541d
powerpc/math-emu: Allow math-emu to be used for HW FPU

(Including 64-bit ones)

This allow SW emulation by the kernel of optional instructions
such as fsqrt which aren't implemented on some processors, and
thus fixes some Fedora 19 issues such as Anaconda since the
compiler is set to generate those by default on 64-bit.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/Kconfig
arch/powerpc/kernel/traps.c