From 779e73370e172667b35f34c01632b9484930d0e7 Mon Sep 17 00:00:00 2001 From: Carlos Rafael Giani Date: Thu, 28 Oct 2021 22:51:29 +0200 Subject: linux-imx: Enable ION DMA memory allocator for imx6 and imx7 The ION allocator is capable of allocating DMA memory blocks that are accessible through DMA-BUF. No other allocator has this feature, and ION is already enabled on all imx8 variants. In kernel 5.6, the dma-heap allocator is introduced, which replaces ION. Still, since Yocto Dunfell will not get a linux-imx version >= 5.6, enable ION to get a DMABUF-capable allocator also on imx6 and imx7 machines. Signed-off-by: Carlos Rafael Giani --- recipes-kernel/linux/linux-imx/imx/defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/recipes-kernel/linux/linux-imx/imx/defconfig b/recipes-kernel/linux/linux-imx/imx/defconfig index 30792d23..7ac298a7 100644 --- a/recipes-kernel/linux/linux-imx/imx/defconfig +++ b/recipes-kernel/linux/linux-imx/imx/defconfig @@ -577,3 +577,5 @@ CONFIG_MAGIC_SYSRQ=y # CONFIG_DEBUG_PREEMPT is not set # CONFIG_DEBUG_BUGVERBOSE is not set # CONFIG_FTRACE is not set +CONFIG_ION=y +CONFIG_ION_CMA_HEAP=y -- cgit v1.2.3-54-g00ecf