2 Aug
2023
2 Aug
'23
9:47 a.m.
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.