diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/iommu.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/iommu.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index eec333dd2e59..5497b130e026 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -1769,10 +1769,8 @@ out_failed: out_unlock: mutex_unlock(&dma_win_init_mutex); - /* If we have persistent memory and the window size is not big enough - * to directly map both RAM and vPMEM, then we need to set DMA limit. - */ - if (pmem_present && direct_mapping && len != MAX_PHYSMEM_BITS) + /* For pre-mapped memory, set bus_dma_limit to the max RAM */ + if (direct_mapping) dev->dev.bus_dma_limit = dev->dev.archdata.dma_offset + (1ULL << max_ram_len); |