Displaying 3 results from an estimated 3 matches for "mtts".
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mts
2007 Jul 09
21
mthca use of dma_sync_single is bogus
It seems the problems running mthca in a Xen domU have uncovered a bug
in mthca: mthca uses dma_sync_single in mthca_arbel_write_mtt_seg()
and mthca_arbel_map_phys_fmr() to sync the MTTs that get written.
However, Documentation/DMA-API.txt says:
void
dma_sync_single(struct device *dev, dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction)
synchronise a single contiguous or scatter/gather mapping. All the
parameters must be the same as those...
2019 Nov 12
20
[PATCH hmm v3 00/14] Consolidate the mmu notifier interval_tree and locking
From: Jason Gunthorpe <jgg at mellanox.com>
8 of the mmu_notifier using drivers (i915_gem, radeon_mn, umem_odp, hfi1,
scif_dma, vhost, gntdev, hmm) drivers are using a common pattern where
they only use invalidate_range_start/end and immediately check the
invalidating range against some driver data structure to tell if the
driver is interested. Half of them use an interval_tree, the others
2019 Oct 28
32
[PATCH v2 00/15] Consolidate the mmu notifier interval_tree and locking
From: Jason Gunthorpe <jgg at mellanox.com>
8 of the mmu_notifier using drivers (i915_gem, radeon_mn, umem_odp, hfi1,
scif_dma, vhost, gntdev, hmm) drivers are using a common pattern where
they only use invalidate_range_start/end and immediately check the
invalidating range against some driver data structure to tell if the
driver is interested. Half of them use an interval_tree, the others