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How the HIGHMEM value is set ?

Question asked by Pankaj Suryawanshi on Feb 13, 2019
Latest reply on Feb 15, 2019 by igorpadykov

I need to mapped all (reduce size of highmem) the memory with kernel. but my default boot log is as below.

"Memory: 1222984K/1446656K available (10240K kernel code, 2287K rwdata, 3232K rodata, 2048K init, 497K bss, 190904K reserved, 32768K cma-reserved, 805632K highmem)"


How/where highmem value is define ?

What is default value ?

 Total DRAM : 2GB


Response is appreciated.