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Message-Id: <1420615903-28253-13-git-send-email-jiang.liu@linux.intel.com>
Date: Wed, 7 Jan 2015 15:31:39 +0800
From: Jiang Liu <jiang.liu@...ux.intel.com>
To: Thomas Gleixner <tglx@...utronix.de>,
Joerg Roedel <joro@...tes.org>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>, Yinghai Lu <yinghai@...nel.org>,
Borislav Petkov <bp@...en8.de>
Cc: Joerg Roedel <jroedel@...e.de>, Tony Luck <tony.luck@...el.com>,
x86@...nel.org, linux-kernel@...r.kernel.org,
iommu@...ts.linux-foundation.org,
Jiang Liu <jiang.liu@...ux.intel.com>
Subject: [Patch v2 12/16] iommu/amd: Check for irq-remap support amd_iommu_prepare()
From: Joerg Roedel <jroedel@...e.de>
This allows to get rid of the irq_remapping_supported()
function and all its call-backs into the Intel and AMD
IOMMU drivers.
Signed-off-by: Joerg Roedel <jroedel@...e.de>
Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
---
drivers/iommu/amd_iommu_init.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index b0522f15730f..0039f87f48b8 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -2123,6 +2123,9 @@ static int __init iommu_go_to_state(enum iommu_init_state state)
#ifdef CONFIG_IRQ_REMAP
int __init amd_iommu_prepare(void)
{
+ if (!amd_iommu_irq_remap)
+ return -1;
+
return iommu_go_to_state(IOMMU_ACPI_FINISHED);
}
--
1.7.10.4
--
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