diff options
Diffstat (limited to 'arch/x86_64')
| -rw-r--r-- | arch/x86_64/kernel/pci-gart.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c index c37fc7726ba..9188b25fad2 100644 --- a/arch/x86_64/kernel/pci-gart.c +++ b/arch/x86_64/kernel/pci-gart.c @@ -457,9 +457,12 @@ int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir) error: flush_gart(NULL); gart_unmap_sg(dev, sg, nents, dir); - /* When it was forced try again unforced */ - if (force_iommu) - return dma_map_sg_nonforce(dev, sg, nents, dir); + /* When it was forced or merged try again in a dumb way */ + if (force_iommu || iommu_merge) { + out = dma_map_sg_nonforce(dev, sg, nents, dir); + if (out > 0) + return out; + } if (panic_on_overflow) panic("dma_map_sg: overflow on %lu pages\n", pages); iommu_full(dev, pages << PAGE_SHIFT, dir); |