Hi Alexandre,
On Friday 07 May 2021 at 17:15:20 (+0200), Alexandre TORGUE wrote:
Did you get time to continue some tests on this issue ?
I did try a few things, but still fail to reproduced :/
On my side this DT is not working:
memory@c0000000 { reg = <0xc0000000 0x20000000>; };
reserved-memory { #address-cells = <1>; #size-cells = <1>; ranges;
gpu_reserved: gpu@d4000000 { reg = <0xd4000000 0x4000000>; no-map; };};
So this does change how memory appears in /proc/iomem for me switching from 5.4.101 to v5.4.102 -- for the former d4000000-d7ffffff doesn't appear at all, and for the latter it appears as 'reserved'.
But still, it never gets accounted as System RAM for me ...
Let me know if I can help.
Could you please confirm you get a correct behaviour with 5.10.31 like Florian? If so, then bisecting to figure out what we're missing in older LTSes would help, but again it feels like we should just revert -- this wasn't really a fix in the first place.
Thanks, Quentin