linux-kernel - [PATCH v3 linux-next] iommu: Enable LPAE pagetable on ARM and ARM64 only

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Message-Id: <1424737221-1193-1-git-send-email-vincent.stehle@laposte.net>
Date:	Tue, 24 Feb 2015 01:20:21 +0100
From:	Vincent Stehlé <vincent.stehle@...oste.net>
To:	laurent.pinchart@...asonboard.com
Cc:	iommu@...ts.linux-foundation.org, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Vincent Stehlé <vincent.stehle@...oste.net>,
	Will Deacon <will.deacon@....com>
Subject: [PATCH v3 linux-next] iommu: Enable LPAE pagetable on ARM and ARM64 only

LPAE iommu page table makes sense only for ARM and ARM64 architectures. Add the
corresponding dependency in Kconfig (and enable for COMPILE_TEST, too, as per
Laurent's suggestion).

Signed-off-by: Vincent Stehlé <vincent.stehle@...oste.net>
Suggested-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: Will Deacon <will.deacon@....com>
---


On 02/24/2015 01:02 AM, Laurent Pinchart wrote:
> Shouldn't this be ARM || ARM64 || COMPILE_TEST ?

Hi Laurent,

It makes perfect sense; thanks. I completely forgot, as I have yet to see one
of those. Here is v3 of the patch.

Best regards,

V.


Changes since v2:
- Add condition on ARM64

Changes since v1:
- Add condition on COMPILE_TEST


 drivers/iommu/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index baa0d97..a440922 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -22,6 +22,7 @@ config IOMMU_IO_PGTABLE
 
 config IOMMU_IO_PGTABLE_LPAE
 	bool "ARMv7/v8 Long Descriptor Format"
+	depends on ARM || ARM64 || COMPILE_TEST
 	select IOMMU_IO_PGTABLE
 	help
 	  Enable support for the ARM long descriptor pagetable format.
-- 
2.1.4

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