Re: Closed source userspace graphics drivers with an open source kernel component

From: Saravana Kannan
Date: Thu Jul 01 2010 - 20:18:52 EST


Dave Airlie wrote:
This is more about initial development stages. We maintain kernel
API/ABI for all in-tree drivers, however before we put a driver into
mainline, we usually need to redo the crazy interfaces that vendors
have come up with. Like 32/64 alignment, passing userspace addresses
into the kernel, passing phy addresses to userspace etc. If the
userspace binary is closed that process becomes next to impossible.

My 2 cents:
I think we should leave the onus of fixing the userspace to work with the sane kernel API with the entity trying to get their drivers into the kernel. I think it's a better approach (as in, more likelihood of getting device support) than saying, we will only allow fully open sourced kernel drivers.

-Saravana
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