From: Nícolas F. R. A. Prado Date: Mon, 30 Jan 2023 20:08:20 +0000 (-0500) Subject: arm64: defconfig: Enable DMA_RESTRICTED_POOL X-Git-Tag: v6.6.7~3531^2~9^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=09ea26f1bf31c381faf4504774326755d8c47108;p=platform%2Fkernel%2Flinux-starfive.git 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 Link: https://lore.kernel.org/r/20230130200820.82084-2-nfraprado@collabora.com Signed-off-by: Matthias Brugger --- diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index ef17d32..236b83e 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