[V2] powerpc/mm/book3s/radix: Add mapping statistics

[Michael Ellerman]

On Mon, 2018-08-13 at 05:44:57 UTC, "Aneesh Kumar K.V" wrote:
> Add statistics that show how memory is mapped within the kernel linear mapping.
> This is similar to commit 37cd944c8d8f ("s390/pgtable: add mapping statistics")
> 
> We don't do this with Hash translation mode. Hash uses one size (mmu_linear_psize)
> to map the kernel linear mapping and we print the linear psize during boot as
> below.
> 
> "Page orders: linear mapping = 24, virtual = 16, io = 16, vmemmap = 24"
> 
> A sample output looks like:
> 
> DirectMap4k:           0 kB
> DirectMap64k:       18432 kB
> DirectMap2M:     1030144 kB
> DirectMap1G:    11534336 kB
> 
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/a2dc009afa9ae8b92305be77286765

cheers