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Can TF-A natively support the barriers in mmio_write_*? #716

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yaozhm opened this issue Aug 8, 2024 · 1 comment
Open

Can TF-A natively support the barriers in mmio_write_*? #716

yaozhm opened this issue Aug 8, 2024 · 1 comment

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@yaozhm
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yaozhm commented Aug 8, 2024

Hi!
I'm a beginner in ATF. As stated in the question,Can we add a dsbsy() barrier to mmio_write_* or define a few new functions like sync_write_*?
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
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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/

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