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powerpc: Fix 64K page size support for PPC44x 

PPC44x supports page sizes other than 4K however when 64K page sizes
are selected compilation fails. This is due to a change in the
definition of pgtable_t introduced by the following patch:

commit 5c1f6ee9a3
Author: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
powerpc: Reduce PTE table memory wastage

The above patch only implements the new layout for PPC64 so it doesn't
compile for PPC32 with a 64K page size. Ideally we should implement
the same layout for PPC32 however for the meantime this patch reverts
the definition of pgtable_t for PPC32.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Alistair Popple 2013-10-17 17:08:28 +11:00 committed by Benjamin Herrenschmidt
parent 90890b1ef5
commit ecb35c3943
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/include/asm/page.h
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@ -403,7 +403,7 @@ void arch_free_page(struct page *page, int order);
struct vm_area_struct;
#ifdef CONFIG_PPC_64K_PAGES
#if defined(CONFIG_PPC_64K_PAGES) && defined(CONFIG_PPC64)
typedef pte_t *pgtable_t;
#else
typedef struct page *pgtable_t;