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Posted to commits@nuttx.apache.org by "pkarashchenko (via GitHub)" <gi...@apache.org> on 2023/04/27 07:27:28 UTC

[GitHub] [nuttx] pkarashchenko commented on a diff in pull request #9118: Add option for selecting coherent DMA.

pkarashchenko commented on code in PR #9118:
URL: https://github.com/apache/nuttx/pull/9118#discussion_r1178733976


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arch/risc-v/src/litex/litex_sdio.c:
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@@ -860,7 +860,9 @@ static int litex_recvsetup(struct sdio_dev_s *dev, uint8_t *buffer,
 
   /* flush CPU d-cache */
 
+#ifndef CONFIG_LITEX_COHERENT_DMA
   up_invalidate_dcache_all();

Review Comment:
   Maybe only a region needs to be invalidated instead of all?



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