[PATCH] powerpc/powernv: Fix vma page prot flags in opal-prd driver
svaidy at linux.vnet.ibm.com
Thu Jun 25 17:43:37 AEST 2015
* Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com> [2015-06-25 11:45:46]:
> Hi Ben,
> remap_pfn_range() is the correct method to map the firmware pages
> because we will not have struct page associated with this RAM area.
> We do a memblock_reserve() in early boot and take out this memory from
> kernel and avoid struct page allocation/init for these.
Kindly ignore the this comment. memblock_reserve() does not
prevent/avoid struct page allocation. We do have valid struct page
which can be used for mapping.
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