[GitHub] [nuttx] pkarashchenko opened a new pull request, #10536: arch/arm/armv[7|8]-m: implement dcache clean as barrier in write-through mode

["pkarashchenko (via GitHub)" <gi...@apache.org>]

pkarashchenko opened a new pull request, #10536:
URL: https://github.com/apache/nuttx/pull/10536

   ## Summary
   Implement dcache clean as barrier (DSB + ISB) in write-through mode.
   
   This change fixes the issue when SAMv7 GMAC sometimes does not start packet transmission. The issue is that EMAC_NCR_TSTART is written to EMAC_NCR register while tx descriptor is not delivered to memory.
   
   ## Impact
   Improve throughput of SAMv7 Ethernet. Should give positive influence on all devices based on armv7-m and armv8-m
   
   ## Testing
   Tested on custom board based on SAMv7. More testing from community is welcomed


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[GitHub] [nuttx] xiaoxiang781216 merged pull request #10536: arch/arm/armv[7|8]-m: implement dcache clean as barrier in write-through mode

["xiaoxiang781216 (via GitHub)" <gi...@apache.org>]

xiaoxiang781216 merged PR #10536:
URL: https://github.com/apache/nuttx/pull/10536


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