tag d7b12d0d493114235dbcbfbad312d2302856719d
tagger Matthias Brugger <matthias.bgg@gmail.com> Wed Feb 01 18:02:14 2023 +0100
object 09ea26f1bf31c381faf4504774326755d8c47108

Enable config options needed to boot mt8192 based Chromebooks

commit 09ea26f1bf31c381faf4504774326755d8c47108
author Nícolas F. R. A. Prado <nfraprado@collabora.com> Mon Jan 30 15:08:20 2023 -0500
committer Matthias Brugger <matthias.bgg@gmail.com> Tue Jan 31 12:28:10 2023 +0100
tree 5608108f51bc9e77db8d43d7308d14b8009a063c
parent 900785741289abbcf8cb4c090416715f0c1c8e08

arm64: defconfig: Enable DMA_RESTRICTED_POOL

Enable support for restricted DMA pools which provide a level of DMA
memory protection on systems with limited hardware protection
capabilities, such as those lacking an IOMMU.

For instance, mt8192-asurada-spherion makes use of this to provide a
restricted DMA region for WiFi since its MT7921E WiFi card is connected
through PCIe, and the MT8192 SoC doesn't have an IOMMU context for the
PCIe controller.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20230130200820.82084-2-nfraprado@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>