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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2018-08-13 11:14:57 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-08-13 16:35:05 +1000 |
| commit | a2dc009afa9ae8b92305be7728676562a104cb40 (patch) | |
| tree | c323534c9db9b947c7742b226be5d6e78fc3d727 /Documentation | |
| parent | 241b5f7ffcbe6b93304c6a282e5a339e22dac5b4 (diff) | |
powerpc/mm/book3s/radix: Add mapping statistics
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@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions