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@amd.com>
mariux64 · Dec 22, 2011 · 31342b5 · 31342b5
1 parent bc21662
commit 31342b5
Showing 1 changed file with 0 additions and 7 deletions.
diff --git 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)