Messages in this thread | | | Date | Wed, 2 Aug 2023 11:47:25 +0200 | From | Christoph Hellwig <> | Subject | Re: [PATCH v2] dma-contiguous: define proper name for global cma region |
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On Tue, Aug 01, 2023 at 10:39:04PM -0700, John Stultz wrote: > So, forgive me, I've not had a chance to look into this, but my > recollection was "reserved" is the name we see on x86, but other names > are possibly provided via the dts node?
Indeed, dma_contiguous_default_area can also be set through rmem_cma_setup, which then takes the name from DT.
> I believe on the hikey board its "linux,cma" is the name, so forcing > it to reserved would break that. > > Maybe instead add a compat config option to force the cma name (so x86 > can set it to "default" if needed)?
I think we'll just need to leave it as-is. I with dma-heaps had never exposed the name to userspace, but we'll have to lіve with it now.
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