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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2018-03-26 15:34:48 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-31 00:10:38 +1100 |
| commit | f384796c40dc55b3dba25e0ee9c1afd98c6d24d1 (patch) | |
| tree | 400e1127554c05abff89a9d09bac2b40f844eba7 /arch/powerpc/mm/hash_utils_64.c | |
| parent | 0dea04b288c06654b0de3563c5b8cdfe6130e450 (diff) | |
| download | linux-f384796c40dc55b3dba25e0ee9c1afd98c6d24d1.tar.gz linux-f384796c40dc55b3dba25e0ee9c1afd98c6d24d1.tar.bz2 linux-f384796c40dc55b3dba25e0ee9c1afd98c6d24d1.zip | |
powerpc/mm: Add support for handling > 512TB address in SLB miss
For addresses above 512TB we allocate additional mmu contexts. To make
it all easy, addresses above 512TB are handled with IR/DR=1 and with
stack frame setup.
The mmu_context_t is also updated to track the new extended_ids. To
support upto 4PB we need a total 8 contexts.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[mpe: Minor formatting tweaks and comment wording, switch BUG to WARN
in get_ea_context().]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm/hash_utils_64.c')
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 17fc13cab8dc..4180b89b8922 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -1267,7 +1267,7 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea, } psize = get_slice_psize(mm, ea); ssize = user_segment_size(ea); - vsid = get_vsid(mm->context.id, ea, ssize); + vsid = get_user_vsid(&mm->context, ea, ssize); break; case VMALLOC_REGION_ID: vsid = get_kernel_vsid(ea, mmu_kernel_ssize); @@ -1532,7 +1532,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea, /* Get VSID */ ssize = user_segment_size(ea); - vsid = get_vsid(mm->context.id, ea, ssize); + vsid = get_user_vsid(&mm->context, ea, ssize); if (!vsid) return; /* |