diff options
| author | Tymoteusz Kielan <tymoteusz.kielan@intel.com> | 2016-09-06 14:35:54 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-10-02 15:42:07 +0300 |
| commit | 60368186fd853899c1819bcefa47f85fe8d5e5ad (patch) | |
| tree | 991c21483223261f8c8a8e04498c1ecd235245ed /drivers/infiniband/hw/hfi1/pio.h | |
| parent | 0b115ef100a3734265a46e13707446d2de00df5c (diff) | |
| download | linux-60368186fd853899c1819bcefa47f85fe8d5e5ad.tar.xz | |
IB/hfi1: Fix user-space buffers mapping with IOMMU enabled
The dma_XXX API functions return bus addresses which are
physical addresses when IOMMU is disabled. Buffer
mapping to user-space is done via remap_pfn_range() with PFN
based on bus address instead of physical. This results in
wrong pages being mapped to user-space when IOMMU is enabled.
Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Tymoteusz Kielan <tymoteusz.kielan@intel.com>
Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/pio.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/pio.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hfi1/pio.h b/drivers/infiniband/hw/hfi1/pio.h index 464cbd27b975..e709eaf743b5 100644 --- a/drivers/infiniband/hw/hfi1/pio.h +++ b/drivers/infiniband/hw/hfi1/pio.h @@ -154,7 +154,7 @@ struct credit_return { /* NUMA indexed credit return array */ struct credit_return_base { struct credit_return *va; - dma_addr_t pa; + dma_addr_t dma; }; /* send context configuration sizes (one per type) */ |