Displaying 6 results from an estimated 6 matches for "scif_dma".
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2019 Nov 01
0
[PATCH v2 00/15] Consolidate the mmu notifier interval_tree and locking
On 10/28/19 1:10 PM, Jason Gunthorpe wrote:
> 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 are
> simple li...
2019 Oct 29
1
[PATCH v2 02/15] mm/mmu_notifier: add an interval tree notifier
...;
>
> Of the 13 users of mmu_notifiers, 8 of them use only
> invalidate_range_start/end() and immediately intersect the
> mmu_notifier_range with some kind of internal list of VAs. 4 use an
> interval tree (i915_gem, radeon_mn, umem_odp, hfi1). 4 use a linked list
> of some kind (scif_dma, vhost, gntdev, hmm)
>
> And the remaining 5 either don't use invalidate_range_start() or do some
> special thing with it.
>
> It turns out that building a correct scheme with an interval tree is
> pretty complicated, particularly if the use case is synchronizing against
>...
2019 Oct 28
0
[PATCH v2 02/15] mm/mmu_notifier: add an interval tree notifier
...pe <jgg at mellanox.com>
Of the 13 users of mmu_notifiers, 8 of them use only
invalidate_range_start/end() and immediately intersect the
mmu_notifier_range with some kind of internal list of VAs. 4 use an
interval tree (i915_gem, radeon_mn, umem_odp, hfi1). 4 use a linked list
of some kind (scif_dma, vhost, gntdev, hmm)
And the remaining 5 either don't use invalidate_range_start() or do some
special thing with it.
It turns out that building a correct scheme with an interval tree is
pretty complicated, particularly if the use case is synchronizing against
another thread doing get_user_pag...
2019 Nov 12
0
[PATCH v3 02/14] mm/mmu_notifier: add an interval tree notifier
...pe <jgg at mellanox.com>
Of the 13 users of mmu_notifiers, 8 of them use only
invalidate_range_start/end() and immediately intersect the
mmu_notifier_range with some kind of internal list of VAs. 4 use an
interval tree (i915_gem, radeon_mn, umem_odp, hfi1). 4 use a linked list
of some kind (scif_dma, vhost, gntdev, hmm)
And the remaining 5 either don't use invalidate_range_start() or do some
special thing with it.
It turns out that building a correct scheme with an interval tree is
pretty complicated, particularly if the use case is synchronizing against
another thread doing get_user_pag...
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 are
simple linear search lists....
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 are
simple linear search lists....