diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/dmar.c | 3 | ||||
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 20 |
2 files changed, 8 insertions, 15 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index 6744e2d4ff6f..4306885f48b1 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1348,9 +1348,6 @@ int dmar_enable_qi(struct intel_iommu *iommu) return -ENOMEM; } - qi->free_head = qi->free_tail = 0; - qi->free_cnt = QI_LENGTH; - raw_spin_lock_init(&qi->q_lock); __dmar_enable_qi(iommu); diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 41d9a2dcab2e..3664d0d00338 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -303,7 +303,7 @@ static inline bool dma_pte_present(struct dma_pte *pte) static inline bool dma_pte_superpage(struct dma_pte *pte) { - return (pte->val & (1 << 7)); + return (pte->val & DMA_PTE_LARGE_PAGE); } static inline int first_pte_in_page(struct dma_pte *pte) @@ -670,7 +670,7 @@ static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devf struct intel_iommu *iommu; struct device *tmp; struct pci_dev *ptmp, *pdev = NULL; - u16 segment; + u16 segment = 0; int i; if (dev_is_pci(dev)) { @@ -848,13 +848,11 @@ static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain, domain_flush_cache(domain, tmp_page, VTD_PAGE_SIZE); pteval = ((uint64_t)virt_to_dma_pfn(tmp_page) << VTD_PAGE_SHIFT) | DMA_PTE_READ | DMA_PTE_WRITE; - if (cmpxchg64(&pte->val, 0ULL, pteval)) { + if (cmpxchg64(&pte->val, 0ULL, pteval)) /* Someone else set it while we were thinking; use theirs. */ free_pgtable_page(tmp_page); - } else { - dma_pte_addr(pte); + else domain_flush_cache(domain, pte, sizeof(*pte)); - } } if (level == 1) break; @@ -891,7 +889,7 @@ static struct dma_pte *dma_pfn_level_pte(struct dmar_domain *domain, break; } - if (pte->val & DMA_PTE_LARGE_PAGE) { + if (dma_pte_superpage(pte)) { *large_page = total; return pte; } @@ -2084,13 +2082,11 @@ static inline void unlink_domain_info(struct device_domain_info *info) static void domain_remove_dev_info(struct dmar_domain *domain) { - struct device_domain_info *info; + struct device_domain_info *info, *tmp; unsigned long flags, flags2; spin_lock_irqsave(&device_domain_lock, flags); - while (!list_empty(&domain->devices)) { - info = list_entry(domain->devices.next, - struct device_domain_info, link); + list_for_each_entry_safe(info, tmp, &domain->devices, link) { unlink_domain_info(info); spin_unlock_irqrestore(&device_domain_lock, flags); @@ -2394,6 +2390,7 @@ static inline void iommu_prepare_isa(void) printk(KERN_ERR "IOMMU: Failed to create 0-16MiB identity map; " "floppy might not work\n"); + pci_dev_put(pdev); } #else static inline void iommu_prepare_isa(void) @@ -4195,7 +4192,6 @@ static int md_domain_init(struct dmar_domain *domain, int guest_width) domain->iommu_snooping = 0; domain->iommu_superpage = 0; domain->max_addr = 0; - domain->nid = -1; /* always allocate the top pgd */ domain->pgd = (struct dma_pte *)alloc_pgtable_page(domain->nid); |