diff options
| author | Nícolas F. R. A. Prado <nfraprado@collabora.com> | 2023-01-30 21:08:20 +0100 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2023-01-31 12:28:10 +0100 |
| commit | 09ea26f1bf31c381faf4504774326755d8c47108 (patch) | |
| tree | 5608108f51bc9e77db8d43d7308d14b8009a063c /arch/arm64/configs | |
| parent | arm64: defconfig: Enable missing configs for mt8192-asurada (diff) | |
| download | linux-09ea26f1bf31c381faf4504774326755d8c47108.tar.xz linux-09ea26f1bf31c381faf4504774326755d8c47108.zip | |
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>
Diffstat (limited to 'arch/arm64/configs')
| -rw-r--r-- | arch/arm64/configs/defconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index ef17d32ed7e2..236b83e62712 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -1408,6 +1408,7 @@ CONFIG_CRYPTO_DEV_HISI_SEC2=m CONFIG_CRYPTO_DEV_HISI_ZIP=m CONFIG_CRYPTO_DEV_HISI_HPRE=m CONFIG_CRYPTO_DEV_HISI_TRNG=m +CONFIG_DMA_RESTRICTED_POOL=y CONFIG_CMA_SIZE_MBYTES=32 CONFIG_PRINTK_TIME=y CONFIG_DEBUG_KERNEL=y |