[Libre-soc-dev] LD/ST Elwidth Overrides
programmerjake at gmail.com
Wed Sep 1 21:34:27 BST 2021
On Wed, Sep 1, 2021, 13:24 lkcl <luke.leighton at gmail.com> wrote:
> On September 1, 2021 8:15:08 PM UTC, Jacob Lifshay <
> programmerjake at gmail.com> wrote:
> >On Wed, Sep 1, 2021, 13:09 lkcl <luke.leighton at gmail.com> wrote:
> >> the sole reason Indexed FFIRST is banned is because it can be used to
> >> probe multiple pages extremely rapidly.
> >strided ffirst can probe pages just about as rapidly...
> not really. Indexed can do multiple pages in a single instruction.
> Unit strided can only cross a single page boundary per instruction.
I said "strided", not "unit strided"...
when the stride is 32kB, it accesses a separate page for every element.
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