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Observer chen8494
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393 次查看
注册日期: ‎05-19-2017

在petalinux2019.1中怎么改变内存大小?

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您好

   在xilinx的开发板中,想同时使用APU和RPU,APU运行linux,RPU运行bare-metal。RPU使用256MB内存,并且这256M内存对linux不可见。

  我参考 << UG1209 (v2019.1) July 3, 2019>> , ch3  page 46中的方法

   8. Under Subsystem AUTO Hardware Settings, select Memory Settings and set the System Memory Size to 0x6FFFFFFF

  但是没有生效,linux一直可以拥有4GB的内存

  附件是我的日志

  谢谢!

 

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Xilinx Employee
Xilinx Employee
316 次查看
注册日期: ‎06-02-2017

回复: 在petalinux2019.1中怎么改变内存大小?

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Xilinx Employee
Xilinx Employee
318 次查看
注册日期: ‎06-19-2019

回复: 在petalinux2019.1中怎么改变内存大小?

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如下链接供参考:

https://forums.xilinx.com/t5/Embedded-Linux/How-to-change-the-memory-size-with-linux/m-p/874873#M27504

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Xilinx Employee
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注册日期: ‎06-02-2017

回复: 在petalinux2019.1中怎么改变内存大小?

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Xilinx Employee
Xilinx Employee
314 次查看
注册日期: ‎03-27-2013

回复: 在petalinux2019.1中怎么改变内存大小?

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Hi @chen8494 ,

 

不太确定你具体的应用。AMP应用的话Xilinx 提供了详细的参考设计,使用reserved memory来提供专门的内存区域给firmware和shared memory.

2019.1的话建议直接参考:https://www.xilinx.com/support/documentation/sw_manuals/xilinx2019_1/ug1186-zynq-openamp-gsg.pdf

Best Regards,
Jason
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