diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2018-09-15 01:30:52 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-09-19 22:01:46 +1000 |
| commit | 8fed04d0f6aedf99b3d811ba58d38bb7f938a47a (patch) | |
| tree | c0119afa2bf361697e2a2690157854e1496cef1c /arch/powerpc/mm/mmu_context.c | |
| parent | 5e46e29e6a977a71f6b5bed414b7bcdbff5a6a43 (diff) | |
powerpc/64s/hash: remove user SLB data from the paca
User SLB mappig data is copied into the PACA from the mm->context so
it can be accessed by the SLB miss handlers.
After the C conversion, SLB miss handlers now run with relocation on,
and user SLB misses are able to take recursive kernel SLB misses, so
the user SLB mapping data can be removed from the paca and accessed
directly.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm/mmu_context.c')
| -rw-r--r-- | arch/powerpc/mm/mmu_context.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/powerpc/mm/mmu_context.c b/arch/powerpc/mm/mmu_context.c index f84e14f23e50..28ae2835db3d 100644 --- a/arch/powerpc/mm/mmu_context.c +++ b/arch/powerpc/mm/mmu_context.c @@ -54,8 +54,7 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next, * MMU context id, which is then moved to SPRN_PID. * * For the hash MMU it is either the first load from slb_cache - * in switch_slb(), and/or the store of paca->mm_ctx_id in - * copy_mm_to_paca(). + * in switch_slb(), and/or load of MMU context id. * * On the other side, the barrier is in mm/tlb-radix.c for * radix which orders earlier stores to clear the PTEs vs |