How to distribution the “$(CMASIZE)”?

[传策薛]

Hi community:

    I notice that the Android8.1 bsp has below BOARD_KERNEL_CMDLINE:

BOARD_KERNEL_CMDLINE := console=ttymxc0,115200 earlycon=imxuart,0x30860000,115200 init=/init video=HDMI-A-1:1920x1080-32@60 androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=freescale androidboot.fbTileSupport=enable cma=$(CMASIZE) androidboot.primary_display=imx-drm firmware_class.path=/vendor/firmware androidboot.selinux=permissive

 the evk board has 3GB memory ,and its cma=1536M, my question is if I have a 2GB board,how much “$(CMASIZE)” should I distribution? Is there any rules?

thanks.

[b36401]

It is application dependent what value to set.
This option splits the memory with common and continuous (CMA) parts.
So you need to configure as much continuous memory as required.

Have a great day,
Victor

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