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powerpc/mm: Standardise on MMU_NO_CONTEXT 

Use MMU_NO_CONTEXT as the initialiser for mm_context.id on
nohash and hash64.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Ellerman 2011-04-12 19:00:04 +00:00 committed by Benjamin Herrenschmidt
parent af2771493a
commit 5e8e7b404a
2 changed files with 3 additions and 2 deletions
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2
arch/powerpc/include/asm/tlbflush.h
View File

@ -79,6 +79,8 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
#elif defined(CONFIG_PPC_STD_MMU_64)
#define MMU_NO_CONTEXT 0
/*
* TLB flushing for 64-bit hash-MMU CPUs
*/

3
arch/powerpc/mm/mmu_context_hash64.c
View File

@ -31,7 +31,6 @@ static DEFINE_IDA(mmu_context_ida);
* Each segment contains 2^28 bytes. Each context maps 2^44 bytes,
* so we can support 2^19-1 contexts (19 == 35 + 28 - 44).
*/
#define NO_CONTEXT 0
#define MAX_CONTEXT ((1UL << 19) - 1)
int __init_new_context(void)
@ -95,5 +94,5 @@ void destroy_context(struct mm_struct *mm)
{
__destroy_context(mm->context.id);
subpage_prot_free(mm);
mm->context.id = NO_CONTEXT;
mm->context.id = MMU_NO_CONTEXT;
}