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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2018-03-26 13:04:49 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-30 16:10:38 +0300 |
| commit | c2b4d8b7417a59b7f9a52d0d8402f5257cbbd398 (patch) | |
| tree | 1494c8180465b2cfe2df7e97e7ee668f5974a4a6 /arch/powerpc/mm/pgtable-hash64.c | |
| parent | f384796c40dc55b3dba25e0ee9c1afd98c6d24d1 (diff) | |
| download | linux-c2b4d8b7417a59b7f9a52d0d8402f5257cbbd398.tar.xz | |
powerpc/mm/hash64: Increase the VA range
This patch increases the max virtual (effective) address value to 4PB.
With 4K page size config we continue to limit ourself to 64TB.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[mpe: Keep the H_PGTABLE_RANGE test, update it to work]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm/pgtable-hash64.c')
| -rw-r--r-- | arch/powerpc/mm/pgtable-hash64.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/mm/pgtable-hash64.c b/arch/powerpc/mm/pgtable-hash64.c index a87b18cf6749..199bfda5f0d9 100644 --- a/arch/powerpc/mm/pgtable-hash64.c +++ b/arch/powerpc/mm/pgtable-hash64.c @@ -24,6 +24,10 @@ #define CREATE_TRACE_POINTS #include <trace/events/thp.h> +#if H_PGTABLE_RANGE > (USER_VSID_RANGE * (TASK_SIZE_USER64 / TASK_CONTEXT_SIZE)) +#warning Limited user VSID range means pagetable space is wasted +#endif + #ifdef CONFIG_SPARSEMEM_VMEMMAP /* * vmemmap is the starting address of the virtual address space where |