unsigned long next_bit = dom->next_address % APERTURE_RANGE_SIZE;
int max_index = dom->aperture_size >> APERTURE_RANGE_SHIFT;
int i = start >> APERTURE_RANGE_SHIFT;
- unsigned long boundary_size;
+ unsigned long boundary_size, mask;
unsigned long address = -1;
unsigned long limit;
next_bit >>= PAGE_SHIFT;
- boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1,
- PAGE_SIZE) >> PAGE_SHIFT;
+ mask = dma_get_seg_boundary(dev);
+
+ boundary_size = mask + 1 ? ALIGN(mask + 1, PAGE_SIZE) >> PAGE_SHIFT :
+ 1UL << (BITS_PER_LONG - PAGE_SHIFT);
for (;i < max_index; ++i) {
unsigned long offset = dom->aperture[i]->offset >> PAGE_SHIFT;
pt = (u64 *)__pt; \
\
for (i = 0; i < 512; ++i) { \
+ /* PTE present? */ \
if (!IOMMU_PTE_PRESENT(pt[i])) \
continue; \
\
+ /* Large PTE? */ \
+ if (PM_PTE_LEVEL(pt[i]) == 0 || \
+ PM_PTE_LEVEL(pt[i]) == 7) \
+ continue; \
+ \
p = (unsigned long)IOMMU_PTE_PAGE(pt[i]); \
FN(p); \
} \
size = PAGE_ALIGN(size);
dma_mask = dev->coherent_dma_mask;
flag &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
+ flag |= __GFP_ZERO;
page = alloc_pages(flag | __GFP_NOWARN, get_order(size));
if (!page) {