[GitHub] [incubator-nuttx] pkarashchenko commented on a change in pull request #5441: armv7-a/r:cache: add cp15_cache_size function and use flush/clean_all if size large than cache size

[GitBox <gi...@apache.org>]

pkarashchenko commented on a change in pull request #5441:
URL: https://github.com/apache/incubator-nuttx/pull/5441#discussion_r801726060



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File path: arch/arm/src/armv7-a/arm_cache.c
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@@ -190,8 +198,16 @@ void up_clean_dcache_all(void)
 
 void up_flush_dcache(uintptr_t start, uintptr_t end)
 {
-  cp15_flush_dcache(start, end);
-  l2cc_flush(start, end);
+  if (cp15_cache_size() < (end - end))

Review comment:
       ```suggestion
     if (cp15_cache_size() < (end - start))
   ```
   




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