From: Alistair Popple <alistair@popple.id.au>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alistair Popple <alistair@popple.id.au>, aneesh.kumar@linux.vnet.ibm.com
Subject: [PATCH V2] powerpc: Fix 64K page size support for PPC44x
Date: Thu, 17 Oct 2013 17:08:28 +1100 [thread overview]
Message-ID: <1381990108-3233-1-git-send-email-alistair@popple.id.au> (raw)
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 5c1f6ee9a31cbdac90bbb8ae1ba4475031ac74b4
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>
---
arch/powerpc/include/asm/page.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index b9f4262..7dde512 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -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;
--
1.7.10.4
reply other threads:[~2013-10-17 6:10 UTC|newest]
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