yf13 commented on code in PR #12041:
URL: https://github.com/apache/nuttx/pull/12041#discussion_r1548945987
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arch/Kconfig:
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@@ -801,6 +801,28 @@ config ARCH_KMAP_NPAGES
maximum number of pages per region, and the configured size of
each page.
+config ARCH_UDEV_MAPPING
+ bool "Support mapping devices memory into user space"
Review Comment:
It seems that shared memory are different. For example, they are backed by
physical allocations and they use GRAN allocation in user space which is size
limited. By having independent regions, the two features can be independently
selected.
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