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fix rocc write back#3786

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andrewchen29 wants to merge 1 commit intochipsalliance:masterfrom
andrewchen29:rocc_fix
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fix rocc write back#3786
andrewchen29 wants to merge 1 commit intochipsalliance:masterfrom
andrewchen29:rocc_fix

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@andrewchen29
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Related issue:
The RoCC Coprocessor will write back the value unconditionally without having xd rocc instructions, which might cause data pollution if the Coprocessor intentionally raise io.rocc.resp.valid

Type of change: bug report

Impact: functional change

Development Phase: implementation

Release Notes

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linux-foundation-easycla Bot commented Apr 13, 2026

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The committers listed above are authorized under a signed CLA.

  • ✅ login: andrewchen29 / name: Andrew Chen (28908e1)

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andrewchen29 commented Apr 13, 2026

Just found out that it now will cause the second write be masked out.
Maybe it's just Coprocessor's responsibility to not to do that.

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