Re: [PATCH v2 0/5] iommu: Support identity mappings of reserved-memory regions

23.04.2021 19:32, Thierry Reding пишет:

Note that an earlier proposal was to use the existing simple-framebuffer
device tree bindings to transport this information. Unfortunately there
are cases where this is not enough. On Tegra SoCs, for example, the
bootloader will also set up a color space correction lookup table in the
system memory that the display controller will access during boot,
alongside the framebuffer. The simple-framebuffer DT bindings have no
way of describing this (and I guess one could argue that this particular
setup no longer is a "simple" framebuffer), so the above, more flexible
proposal was implemented.

Will simple-framebuffer be able to use that reserved region
transparently? Or will it require a custom simple-framebuffer driver?

Could we make simple-framebuffer support a part of this series?