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Date: Thu, 22 Dec 2011 15:01:17 +0100 From: Joerg Roedel <joerg.roedel@....com> To: <iommu@...ts.linux-foundation.org> CC: <linux-kernel@...r.kernel.org>, Joerg Roedel <joerg.roedel@....com> Subject: [PATCH 1/3] iommu/amd: Remove unnecessary cache flushes in amd_iommu_resume The caches are already flushed in enable_iommus(), so this flush is not necessary. Signed-off-by: Joerg Roedel <joerg.roedel@....com> --- drivers/iommu/amd_iommu_init.c | 7 ------- 1 files changed, 0 insertions(+), 7 deletions(-) diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index c7a5d7e..38784733 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1396,13 +1396,6 @@ static void amd_iommu_resume(void) /* re-load the hardware */ enable_iommus(); - - /* - * we have to flush after the IOMMUs are enabled because a - * disabled IOMMU will never execute the commands we send - */ - for_each_iommu(iommu) - iommu_flush_all_caches(iommu); } static int amd_iommu_suspend(void) -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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