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.