[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a diff in pull request #7212: arch/armv[7|8]-m: Implement up_invalidate_icache

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

xiaoxiang781216 commented on code in PR #7212:
URL: https://github.com/apache/incubator-nuttx/pull/7212#discussion_r983528247


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arch/arm/src/armv8-m/arm_cache.c:
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@@ -176,6 +176,78 @@ void up_disable_icache(void)
 }
 #endif
 
+/****************************************************************************
+ * Name: up_invalidate_icache
+ *
+ * Description:
+ *   Invalidate the instruction cache within the specified region.
+ *
+ * Input Parameters:
+ *   start - virtual start address of region
+ *   end   - virtual end address of region + 1
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_ARMV8M_ICACHE
+void up_invalidate_icache(uintptr_t start, uintptr_t end)

Review Comment:
   it's a little bit hard since common folder is for arm/armv6-m/armv7-a/armv7-r/armv7-m/armv8-m, but the cache operation is different from Cortex-A/R and Cortex-M.



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