Draft: KMD control over sysmem - Githubissues

tenstorrent / tt-kmd

Tenstorrent Kernel Module

GNU General Public License v2.0

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Draft: KMD control over sysmem #17

Closed joelsmithTT closed 1 month ago

joelsmithTT commented 2 months ago

This introduces:

a mechanism for telling KMD about the hugepage(s) that a device will use for sysmem, intended as a one-time setup step
a new mapping, allowing a user application to map the sysmem buffer into its address space without needing to know about hugepages

The goals:

Enable system IOMMU
Enable sysmem to be partitioned between application and platform use

There is more detail in the commit messages.