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Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent

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This commit is contained in:
Ingo Molnar
2010-04-13 13:24:54 +02:00
parent 0d0fb0f9c5 4b83873d3d
commit 2b2f862ee6
8 changed files with 68 additions and 34 deletions
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20
arch/x86/kernel/amd_iommu.c
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@@ -118,7 +118,7 @@ static bool check_device(struct device *dev)
return false;
/* No device or no PCI device */
if (!dev || dev->bus != &pci_bus_type)
if (dev->bus != &pci_bus_type)
return false;
devid = get_device_id(dev);
@@ -392,6 +392,7 @@ static int __iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd)
u32 tail, head;
u8 *target;
WARN_ON(iommu->cmd_buf_size & CMD_BUFFER_UNINITIALIZED);
tail = readl(iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
target = iommu->cmd_buf + tail;
memcpy_toio(target, cmd, sizeof(*cmd));
@@ -2186,7 +2187,7 @@ static void prealloc_protection_domains(void)
struct dma_ops_domain *dma_dom;
u16 devid;
while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
for_each_pci_dev(dev) {
/* Do we handle this device? */
if (!check_device(&dev->dev))
@@ -2298,7 +2299,7 @@ static void cleanup_domain(struct protection_domain *domain)
list_for_each_entry_safe(dev_data, next, &domain->dev_list, list) {
struct device *dev = dev_data->dev;
do_detach(dev);
__detach_device(dev);
atomic_set(&dev_data->bind, 0);
}
@@ -2327,6 +2328,7 @@ static struct protection_domain *protection_domain_alloc(void)
return NULL;
spin_lock_init(&domain->lock);
mutex_init(&domain->api_lock);
domain->id = domain_id_alloc();
if (!domain->id)
goto out_err;
@@ -2379,9 +2381,7 @@ static void amd_iommu_domain_destroy(struct iommu_domain *dom)
free_pagetable(domain);
domain_id_free(domain->id);
kfree(domain);
protection_domain_free(domain);
dom->priv = NULL;
}
@@ -2456,6 +2456,8 @@ static int amd_iommu_map_range(struct iommu_domain *dom,
iova &= PAGE_MASK;
paddr &= PAGE_MASK;
mutex_lock(&domain->api_lock);
for (i = 0; i < npages; ++i) {
ret = iommu_map_page(domain, iova, paddr, prot, PM_MAP_4k);
if (ret)
@@ -2465,6 +2467,8 @@ static int amd_iommu_map_range(struct iommu_domain *dom,
paddr += PAGE_SIZE;
}
mutex_unlock(&domain->api_lock);
return 0;
}
@@ -2477,12 +2481,16 @@ static void amd_iommu_unmap_range(struct iommu_domain *dom,
iova &= PAGE_MASK;
mutex_lock(&domain->api_lock);
for (i = 0; i < npages; ++i) {
iommu_unmap_page(domain, iova, PM_MAP_4k);
iova += PAGE_SIZE;
}
iommu_flush_tlb_pde(domain);
mutex_unlock(&domain->api_lock);
}
static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom,