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

2014年3月28日 · Either the CONFIG_CMA_SIZE_MB is set to a reasonable value (we tried different values from 2 MB to 64 MB) OR the CMA is not activated (which should be possible), then the kernel is not starting anymore.

本文详细介绍了如何将VKMS驱动从Linux-4.19.88移植到4.9.88版本，包括解决CMA符号未定义的问题，配置内核选项，编译模块，并进行了测试。 通过修改libdrm源码以支持VKMS设备，成功运行了各种DRM测试程序，验证了移植的正确性。

Using Alvium MIPI CSI-2 cameras requires setting up your embedded board. This document describes how to install the kernel including the camera driver module and how to prepare image acquisition.

在 Linux 内核中，CMA（Contiguous Memory Allocator，连续内存分配器）是一种用于分配物理上连续的内存块的机制。CMA 的主要目标是为需要大块连续内存的设备（例如 DMA 设备）提供内存支持。

2024年7月21日 · 《imx6ull数据手册》是一份详细的文档集，涵盖了NXP公司生产的i. MX 6 ULL 微处理器的各种技术规格和应用指南。 这份手册是工程师在设计、开发和调试基于i .

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.

2023年10月2日 · 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

Simplify the daily sharing of data by creating efficient connections between your system and CMA CGM's.

2021年4月15日 · I have to modify the CMA setting according to the RAM size. example for 2GB. uboot, sdram1 size - 1 GB. sdram 2 size - 1 GB . Where I have to update the Linux CMA settings ?