In message <m0zSlJf-0007U9C@the-village.bc.nu> you write:
> > So my question is :
> > * Is there any way to invoke Burst-Read transaction on PCI from CPU
> > on Linux/i386 kernel 2.0.X ?
>
> Not easily
I guess.
> > * Is there any way to enable cache attribute on PCI memory space ?
>
> Sort of related.
>
> The 2.1.x kernel trees have MTRR support, in 2.0.x you will have to do it
> directly. Basically on a P6 you can tell the CPU this memory area has
> these parameters - that includes "write gathering" - ie burst write.
Yes, I found MTRR support in kernel 2.1.x, but it only mentioned about
WC (Write Combined) attribute (as you mentioned above).
Is it possible to enable 'Read Cache' through MTRR ?
Thank you!
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