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c733dc7a6f
When this driver was written it made sense to make this default to off, but these days almost all BIOSses will do the right thing. Furthermore non-mmio communication only works on Intel architectures. So lets default to allowing mmio, but not change the semantics of the AHC_ALLOW_MEMIO flag to not break existing installs. Also document the already existing hint.ahc.<unit>.allow_memio. Signed-off-by: HP van Braam <hp@tmm.cx> Reviewed by: imp (small style tweak) Pull Request: https://github.com/freebsd/freebsd-src/pull/1219 |
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