#include "intel-iommu.h"
#include <asm/proto.h> /* force_iommu in this header in x86-64*/
#include <asm/cacheflush.h>
-#include <asm/gart.h>
+#include <asm/iommu.h>
#include "pci.h"
#define IS_GFX_DEVICE(pdev) ((pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY)
}
#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) {
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