Re: Write-combining

[Sean Neakums]

Thiago Robert <robert@xxxxxxxxxxx> writes:

> Is the default behaviour of the Linux kernel to enable
> write-combining? How can I be sure if it is enabled or not?

My /proc/mtrr lists the following region:

reg03: base=0xf8000000 (3968MB), size=  64MB: write-combining, count=2

which I am guessing is the PCI space, although I'm not certain.
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