2020年2月28日 · It is possible to reserve cma memory by using the CONFIG_CMA_SIZE_MBYTES in the kernel, as mentioned here: How does imx6qp increase cma memory

2023年10月2日 · Hi, How do I increase CMA memory size in imx8mp yocto BSP/device tree? I have currently 640MiB allocated and I want to increase it as can be seen here: ~# dmesg | grep -i cma [ 0.000000] Reserved memory: created CMA memory pool at 0x000000006a000000, size 640 MiB [ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma ...

2016年9月7日 · I am using the SCM-i.MX 6Quad (imx6dqscm-1gb-qwks board), I am trying to increase the CMA (Contiguous Memory Allocator) from the default of 320 to something bigger, say CONFIG_CMA_SIZE_MBYTES=640. To to this, I did the following: 1. In the .config (menuconfig) changed the CONFIG_CMA_SIZE_MBYTES=350 to CONFIG_CMA_SIZE_MBYTES=640.

2019年12月6日 · 1、imx_v7_defconfig和imx_v7_mfg_defconfig的CONFIG_CMA_SIZE_MBYTES=16，其中16可尝试配置为32,64,320等 未配置CMA时log如下cma: CMA: failed to reserve 320 MiB

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Indian Subcontinent Mediterranean Express (IMX) The IMX service will be run with eight 7,500 TEU vessels jointly operated with CMA CGM and COSCO with Hapag-Lloyd providing four vessels in the service. The rotation will be as per follows:

2024年7月21日 · 文章浏览阅读1.1k次，点赞7次，收藏13次。仓库 [nxp-imx/linux-imx]2. 编译NXP Linux Kernel 5.153. 烧写NXP Linux Kernel 5.15编译生成使用tftp方式下载上面两个文件到板子上（uboot移植看前面的文章）4. 适配正点原子Alpha板子4.1 新建单板配置文件4.2 新建单板设备树文件修改imx6ull-14x14-alpha.dts修改imx6ull-14x14-alpha-emmc.dts ...

2015年10月23日 · We have a embedded linux system (yocto 1.8) running on a i.MX6 board with 1GByte of RAM. The kernel is configured to have 320MByte of CMA reserved and no swap. Kernel 3.10.53 When we run a small test

2020年3月16日 · 这个配置：linux,cma-default;，意思是到CMA memory pool中去获取。 I.MX6Q中之所以配置SIZE为256MB，是因为6Q中，有VPU、GPU、HDMI、camera等，需要较大的预留内存，并且这些内存都是需要使用DMA访问的。

2019年7月4日 · Now I try to do the same thing in the kernel 4.9.23.x from the BSP 2.8 but nothing changed on the run time, the CMA is always set to the default of 128MB, even if I pass the argument from u-boot. In the @stefan.tx last answer it tells that with newer kernels it could be necessary to change the device tree, but I don’t know how.