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| author | Logan Gunthorpe <logang@deltatee.com> | 2020-09-22 22:08:44 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-10-05 06:46:41 +0200 |
| commit | 028926e4ac8f21af343c25794117fd13c08b1712 (patch) | |
| tree | a2006992c9040d85042243be74c22ed5e3025f5a /drivers/vfio | |
| parent | dmaengine: ti: k3-udma: use devm_platform_ioremap_resource_byname (diff) | |
| download | linux-028926e4ac8f21af343c25794117fd13c08b1712.tar.xz linux-028926e4ac8f21af343c25794117fd13c08b1712.zip | |
dmaengine: ioat: Allocate correct size for descriptor chunk
dma_alloc_coherent() is called with a fixed SZ_2M size, but frees happen
with IOAT_CHUNK_SIZE. Recently, IOAT_CHUNK_SIZE was reduced to 512M but
the allocation did not change. To fix, change to using the
IOAT_CHUNK_SIZE define.
This was caught with the upcoming patchset for converting Intel platforms to the
dma-iommu implementation. It has a warning when the unmapped size differs from
the mapped size.
Fixes: a02254f8a676 ("dmaengine: ioat: Decreasing allocation chunk size 2M->512K")
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/intel-gfx/776771a2-247a-d1be-d882-bee02d919ae0@deltatee.com/
Link: https://lore.kernel.org/r/20200922200844.2982-1-logang@deltatee.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/vfio')
0 files changed, 0 insertions, 0 deletions