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Re: [PATCH] PPC enable Alitvec hardware, part 1

From: Roland McGrath <roland at redhat dot com>
To: sjmunroe at vnet dot ibm dot com
Cc: libc-hacker at sources dot redhat dot com,Paul Mackerras <paulus at samba dot org>,Benjamin Herrenschmidt <benh at kernel dot crashing dot org>
Date: Sat, 10 Jan 2004 13:11:05 -0800
Subject: Re: [PATCH] PPC enable Alitvec hardware, part 1

> The attached patch provides base enabling for PowerPC Altivec (AKA VMX) 
> and for versioning effected functions. 2.6.0 kernels provide a 
> PPC_FEATURE_HAS_ALTIVEC status in the AT_HWCAP. We need to capture this 
> status as a static flag (__has_altivec) so functions enabled for altivec 
> can run safely on PowerPC hardware without the Altivec feature.

Why did you introduce this variable?  Using GL(dl_hwcap) should be fine.

References:
- [PATCH] PPC enable Alitvec hardware, part 1
  - From: Steve Munroe

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