Messages in this thread | | | Date | Sat, 18 Feb 2023 00:01:19 +0800 | From | Shengyu Qu <> | Subject | Re: [PATCH RESEND 2/2] arm64: dts: rockchip: Add RGA2 support to rk356x |
| |
Hi, Michael,
> I don't think the GFP_DMA32 flag works with DmaBuf import. The buffer may be > allocated by some other driver that is able to address more than 4G and > imported into the RGA driver. In this case, limiting the allocations is not > enough, but we would still need error handling in the map function for buffers > that cannot be addressed by the RGA. > > I guess we need both, a limit for the allocation and error checking for the > map.
Maybe you are right.. I haven't digged into v4l2-m2m API, so I'm not sure about
it. Seems we need others' help.
Shengyu
[unhandled content-type:application/pgp-keys][unhandled content-type:application/pgp-signature] | |