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https://androidforums.com/threads/how-much-ram-do-you-have.173020/
Sep 22, 2010 · Support How much RAM do you have? Discussion in 'Android Devices' started by jr1125, Sep 10, ... HIGHMEM support for RAM >256MB; SDIO scheduling and BT improvements; ... so it seems like my DX can see and use more than 256 MB of RAM. Why is that? Kernal 2.6.29, by the way. ...
https://www.linux-mips.org/wiki/Highmem
Typical MIPS systems reserve part of that address space for other uses so a lowmem limit of 256MB is a common value. Memory beyond that can be used by 64-bit kernels or 32-bit kernels with highmem support enabled.
https://community.nxp.com/thread/516409
Oct 28, 2019 · I have 1.5GB RAM and disabled the highmem support. In order to utilize the full RAM I increased the LOWMEM size to 0X60000000 and reduced the task size to 0x90000000. My configuration: ... My question is how can I decrease the kernel reserved memory region (from 256MB to128MB) and increase the TASK_SIZE accordingly without changing the LOWMEM ...Reviews: 4
https://androidforums.com/threads/256-or-512mb-of-ram.104441/
Jun 21, 2010 · Galaxy S comes with 512MB of ram but can only use 256MB as of now with 2.2 comes a new version of the kernel Android 2.2 Platform Highlights Android Developers 2.6.32 kernel upgrade * HIGHMEM support for RAM >256MB So for everyone that doubts 2.2 on the Galaxy S it WILL surely come to the galaxy S.
https://s3-eu-west-1.amazonaws.com/downloads-mips/mips-documentation/login-required/enabling_highmem_on_the_maltatm_r_development_board.pdf
• Register 256 MB of memory for use as HighMem by Linux. For step 1, the file arch/mips/Kconfig needs to be modified as shown below. ... Configure Linux to support HighMem . 3. Limit usable memory to 128 . 4. Register the memory used as HighMem . Step 3 is specific to the Malta board; steps 1, 2, and 4 apply to all other boards.
https://www.linuxquestions.org/questions/linux-newbie-8/linux-highmem-4175515031/
Aug 17, 2014 · 1. What is the maximum amount of RAM that can be mapped via HIGHMEM? 2. If I map 256MB of physical memory mapped through HIGHMEM, Can I use whole 256MB from a single application using malloc()? 3. In a 32-bit system, I have 256MB RAM and 4KB page size, how many page table entries required to map whole physical memory into virtual memory?
https://community.nxp.com/thread/308734
Jul 15, 2013 · We have replace the chip for a 256MB. I have reboot the board with my latest SD card to ensure the RAM is properly changed and it runs fine. Now, I want to be able to access the whole 256MB from Linux. I have get u-boot source from Linux BSP and recompile it with PHYS_SDRAM_1_SIZE changed from 0x08000000 to 0x10000000 to support the whole 256MB.Reviews: 10
https://www.ebay.com/b/256MB-Computer-RAM/170083/bn_649007
Get the best deals on 256MB Computer RAM when you shop the largest online selection at eBay.com. Free shipping on many items Browse your favorite brands ... Make Offer - DEC 256 MB Memory Module Board B3030-ET. 256MB STICK DIMM SDRAM 256 Ram Memory. $18.71 +$6.75 shipping. Make Offer - 256MB STICK DIMM SDRAM 256 Ram Memory.
https://forum.xda-developers.com/showthread.php?t=756342
Nov 16, 2010 · HIGHMEM support for RAM >256MB ... Help & Troubleshooting Does the captivate really have 512MB of RAM? by sdimezq8. XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. ...
http://processors.wiki.ti.com/index.php/HOWTO_Support_512MB_SDRAM
Support of memory >= 1GB requires either adjusting the split setup or using the Linux High Memory feature. Support for memory between 256MB and 768MB may be accomplished by reoganizing the Kernel Virtual Space. Note: First pass examination of Android's default setup suggests there are application dependencies on the 3/1 split.
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