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authorJoerg Roedel <joerg.roedel@amd.com>2008-12-02 20:20:21 +0300
committerJoerg Roedel <joerg.roedel@amd.com>2009-01-03 16:11:53 +0300
commit86db2e5d47bfa61a151d6ac83263f4bde4d52290 (patch)
treeb6ff290a63a27205b565b39189d6fd4ce2b15703 /arch
parent38e817febe2f12bd2fbf92a1df36f41946d0c223 (diff)
downloadlinux-86db2e5d47bfa61a151d6ac83263f4bde4d52290.tar.xz
AMD IOMMU: make dma_ops_free_pagetable generic
Impact: change code to free pagetables from protection domains The dma_ops_free_pagetable function can only free pagetables from dma_ops domains. Change that to free pagetables of pure protection domains. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/amd_iommu.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index b11c855af7b4..8a0fd3d09973 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -587,12 +587,12 @@ static void dma_ops_reserve_addresses(struct dma_ops_domain *dom,
iommu_area_reserve(dom->bitmap, start_page, pages);
}
-static void dma_ops_free_pagetable(struct dma_ops_domain *dma_dom)
+static void free_pagetable(struct protection_domain *domain)
{
int i, j;
u64 *p1, *p2, *p3;
- p1 = dma_dom->domain.pt_root;
+ p1 = domain->pt_root;
if (!p1)
return;
@@ -613,6 +613,8 @@ static void dma_ops_free_pagetable(struct dma_ops_domain *dma_dom)
}
free_page((unsigned long)p1);
+
+ domain->pt_root = NULL;
}
/*
@@ -624,7 +626,7 @@ static void dma_ops_domain_free(struct dma_ops_domain *dom)
if (!dom)
return;
- dma_ops_free_pagetable(dom);
+ free_pagetable(&dom->domain);
kfree(dom->pte_pages);