Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 1/3] iommu/amd: Remove unnecessary cache flushes in amd_iommu_resume | Date | Thu, 22 Dec 2011 15:01:17 +0100 |
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The caches are already flushed in enable_iommus(), so this flush is not necessary.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.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
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