On 11/01/17 09:54 PM, Stephen Bates wrote: > The iopmem patchset addressed all the use cases above and while it is not > an in kernel API it could have been modified to be one reasonably easily. > As Logan states the driver can then choose to pass the VMAs to user-space > in a manner that makes sense. Just to clarify: the iopmem patchset had one patch that allowed for slightly more flexible zone device mappings which ought to be useful for everyone. The other patch (which was iopmem proper) was more of an example of how the zone_device memory _could_ be exposed to userspace with "iopmem" hardware that looks similar to nvdimm hardware. Iopmem was not really useful, in itself, for NVMe devices and it was never expected to be useful for GPUs. Logan -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
