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Issue tracking for the ARM Trusted Firmware project
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Can TF-A natively support the barriers in mmio_write_*？ #716

Open yaozhm opened 1 month ago

yaozhm commented 1 month ago

Hi！ I'm a beginner in ATF. As stated in the question，Can we add a dsbsy() barrier to mmiowrite or define a few new functions like syncwrite？ We have noticed that in plat/mediatek/drivers/dfd/mt8188/plat_dfd.h+13, they have defined a sync_writel interface. Can the community natively provide such an interface with built-in barriers? I assume you've encountered similar questions before, could you inform me of the reasons for not implementing it at present? hope to receive your reply, thank you！

Yann-lms commented 3 weeks ago

Hi @yaozhm, This forum is not monitored a lot. To have more answers, I invite you to raise the question to TF-A mailing list: https://lists.trustedfirmware.org/mailman3/lists/tf-a.lists.trustedfirmware.org/