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From: Kumar Gala <galak@kernel.crashing.org>
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Subject: HWCAP for fsqrt vs PPC64
Date: Fri, 25 Jun 2010 09:51:42 -0500
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To: Alan Modra <amodra@bigpond.net.au>, Paul Mackerras <paulus@samba.org>,
	Wienskoski Edmar-RA8797 <RA8797@freescale.com>,
	Stewart Katherine-RA4863 <ra4863@freescale.com>,
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	Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Guys,

We seem to be using the PPC_FEATURE_64 HWCAP to imply fsqrt support.  =
However, the new e5500 core from Freescale that is 64-bit does NOT =
implement fsqrt so this assumption is wrong:

sysdeps/powerpc/fpu/math_private.h

# if __WORDSIZE =3D=3D 64 || defined _ARCH_PWR4
#  define __CPU_HAS_FSQRT 1
# else
#  define __CPU_HAS_FSQRT ((GLRO(dl_hwcap) & PPC_FEATURE_64) !=3D 0)
# endif

Open to suggestions on how to fix this as its a kernel/libc interaction =
point.

- k=