linux-kernel - [PATCH] powerpc/iommu: Fix initialisation of DART iommu table

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Message-Id: <1390969212-20758-1-git-send-email-alistair@popple.id.au>
Date:	Wed, 29 Jan 2014 15:20:12 +1100
From:	Alistair Popple <alistair@...ple.id.au>
To:	linuxppc-dev@...ts.ozlabs.org
Cc:	linux-kernel@...r.kernel.org, olaf@...fle.de,
	benh@...nel.crashing.org, Alistair Popple <alistair@...ple.id.au>
Subject: [PATCH] powerpc/iommu: Fix initialisation of DART iommu table

Commit d084775738b746648d4102337163a04534a02982 switched the generic
powerpc iommu backend code to use the it_page_shift field to determine
page size. Commit 3a553170d35d69bea3877bffa508489dfa6f133d should have
initiliased this field for all platforms, however the DART iommu table
code was not updated.

This commit initialises the it_page_shift field to 4K for the DART
iommu.

Signed-off-by: Alistair Popple <alistair@...ple.id.au>
---
 arch/powerpc/sysdev/dart_iommu.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index bd968a4..62c47bb 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -292,6 +292,7 @@ static void iommu_table_dart_setup(void)
 	iommu_table_dart.it_offset = 0;
 	/* it_size is in number of entries */
 	iommu_table_dart.it_size = dart_tablesize / sizeof(u32);
+	iommu_table_dart.it_page_shift = IOMMU_PAGE_SHIFT_4K;
 
 	/* Initialize the common IOMMU code */
 	iommu_table_dart.it_base = (unsigned long)dart_vbase;
-- 
1.7.10.4

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