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authorDavid S. Miller <davem@davemloft.net>2008-07-18 02:39:39 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-18 02:39:39 -0700
commit49997d75152b3d23c53b0fa730599f2f74c92c65 (patch)
tree46e93126170d02cfec9505172e545732c1b69656 /drivers/pci/intel-iommu.c
parenta0c80b80e0fb48129e4e9d6a9ede914f9ff1850d (diff)
parent5b664cb235e97afbf34db9c4d77f08ebd725335e (diff)
downloadlwn-49997d75152b3d23c53b0fa730599f2f74c92c65.tar.gz
lwn-49997d75152b3d23c53b0fa730599f2f74c92c65.zip
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: Documentation/powerpc/booting-without-of.txt drivers/atm/Makefile drivers/net/fs_enet/fs_enet-main.c drivers/pci/pci-acpi.c net/8021q/vlan.c net/iucv/iucv.c
Diffstat (limited to 'drivers/pci/intel-iommu.c')
-rw-r--r--drivers/pci/intel-iommu.c52
1 files changed, 37 insertions, 15 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 66c0fd21894b..3f7b81c065d2 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -1637,12 +1637,43 @@ static inline int iommu_prepare_rmrr_dev(struct dmar_rmrr_unit *rmrr,
}
#ifdef CONFIG_DMAR_GFX_WA
-extern int arch_get_ram_range(int slot, u64 *addr, u64 *size);
+struct iommu_prepare_data {
+ struct pci_dev *pdev;
+ int ret;
+};
+
+static int __init iommu_prepare_work_fn(unsigned long start_pfn,
+ unsigned long end_pfn, void *datax)
+{
+ struct iommu_prepare_data *data;
+
+ data = (struct iommu_prepare_data *)datax;
+
+ data->ret = iommu_prepare_identity_map(data->pdev,
+ start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
+ return data->ret;
+
+}
+
+static int __init iommu_prepare_with_active_regions(struct pci_dev *pdev)
+{
+ int nid;
+ struct iommu_prepare_data data;
+
+ data.pdev = pdev;
+ data.ret = 0;
+
+ for_each_online_node(nid) {
+ work_with_active_regions(nid, iommu_prepare_work_fn, &data);
+ if (data.ret)
+ return data.ret;
+ }
+ return data.ret;
+}
+
static void __init iommu_prepare_gfx_mapping(void)
{
struct pci_dev *pdev = NULL;
- u64 base, size;
- int slot;
int ret;
for_each_pci_dev(pdev) {
@@ -1651,17 +1682,9 @@ static void __init iommu_prepare_gfx_mapping(void)
continue;
printk(KERN_INFO "IOMMU: gfx device %s 1-1 mapping\n",
pci_name(pdev));
- slot = arch_get_ram_range(0, &base, &size);
- while (slot >= 0) {
- ret = iommu_prepare_identity_map(pdev,
- base, base + size);
- if (ret)
- goto error;
- slot = arch_get_ram_range(slot, &base, &size);
- }
- continue;
-error:
- printk(KERN_ERR "IOMMU: mapping reserved region failed\n");
+ ret = iommu_prepare_with_active_regions(pdev);
+ if (ret)
+ printk(KERN_ERR "IOMMU: mapping reserved region failed\n");
}
}
#endif
@@ -1725,7 +1748,6 @@ int __init init_dmars(void)
deferred_flush = kzalloc(g_num_of_iommus *
sizeof(struct deferred_flush_tables), GFP_KERNEL);
if (!deferred_flush) {
- kfree(g_iommus);
ret = -ENOMEM;
goto error;
}