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| author | Takashi Iwai <tiwai@suse.de> | 2015-12-23 08:33:34 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-12-23 08:33:34 +0100 |
| commit | 59c8231089be96165735585694a801ae58ec6c95 (patch) | |
| tree | 41bd60a9aec5df20e07a81fbb526c8bc05e997fc /drivers/parisc/iommu-helpers.h | |
| parent | ALSA: oxfw: add stream format quirk for SCS.1 models (diff) | |
| parent | Merge tag 'asoc-fix-v4.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
| download | linux-59c8231089be96165735585694a801ae58ec6c95.tar.xz linux-59c8231089be96165735585694a801ae58ec6c95.zip | |
Merge branch 'for-linus' into for-next
Conflicts:
drivers/gpu/drm/i915/intel_pm.c
Diffstat (limited to 'drivers/parisc/iommu-helpers.h')
| -rw-r--r-- | drivers/parisc/iommu-helpers.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h index 761e77bfce5d..e56f1569f6c3 100644 --- a/drivers/parisc/iommu-helpers.h +++ b/drivers/parisc/iommu-helpers.h @@ -104,7 +104,11 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev, struct scatterlist *contig_sg; /* contig chunk head */ unsigned long dma_offset, dma_len; /* start/len of DMA stream */ unsigned int n_mappings = 0; - unsigned int max_seg_size = dma_get_max_seg_size(dev); + unsigned int max_seg_size = min(dma_get_max_seg_size(dev), + (unsigned)DMA_CHUNK_SIZE); + unsigned int max_seg_boundary = dma_get_seg_boundary(dev) + 1; + if (max_seg_boundary) /* check if the addition above didn't overflow */ + max_seg_size = min(max_seg_size, max_seg_boundary); while (nents > 0) { @@ -138,14 +142,11 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev, /* ** First make sure current dma stream won't - ** exceed DMA_CHUNK_SIZE if we coalesce the + ** exceed max_seg_size if we coalesce the ** next entry. */ - if(unlikely(ALIGN(dma_len + dma_offset + startsg->length, - IOVP_SIZE) > DMA_CHUNK_SIZE)) - break; - - if (startsg->length + dma_len > max_seg_size) + if (unlikely(ALIGN(dma_len + dma_offset + startsg->length, IOVP_SIZE) > + max_seg_size)) break; /* |