Messages in this thread | | | Date | Tue, 9 Jun 2020 13:31:23 +0200 | From | Christoph Hellwig <> | Subject | Re: next-0519 on thinkpad x60: sound related? window manager crash |
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On Tue, Jun 09, 2020 at 11:31:20AM +0200, Takashi Iwai wrote: > > > How would be a proper way to get the virtually mapped SG-buffer pages > > > with coherent memory? (Also allowing user-space mmap, too) > > > > dma_mmap_coherent / dma_mmap_attrs for userspace. We don't really > > have a good way for kernel space mappings. > > And that's the missing piece right now... :-<
Can you point me to the relevant places (allocation and vmap mostly) so that I can take a look at how to fix this mess?
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