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Commit 5e8e7b40 authored by Michael Ellerman's avatar Michael Ellerman Committed by Benjamin Herrenschmidt
Browse files

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: default avatarMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent af277149

arch/powerpc/include/asm/tlbflush.h

+2 −0
Original line number Diff line number Diff line
@@ -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

 */

arch/powerpc/mm/mmu_context_hash64.c

+1 −2
Original line number Diff line number Diff line
@@ -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;

}