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| author | Liviu Dudau <Liviu.Dudau@arm.com> | 2017-11-10 13:33:10 +0000 |
|---|---|---|
| committer | Noralf Trønnes <noralf@tronnes.org> | 2017-11-15 18:14:46 +0100 |
| commit | 998fb1a0f478b83492220ff79583bf9ad538bdd8 (patch) | |
| tree | 2726e7460e19dbee07402dec75f13522b44c6502 /Documentation/devicetree/bindings/display | |
| parent | 1f2d9bdc9085a4477a997344b17c40ba2a28d4e4 (diff) | |
| download | blackbird-op-linux-998fb1a0f478b83492220ff79583bf9ad538bdd8.tar.gz blackbird-op-linux-998fb1a0f478b83492220ff79583bf9ad538bdd8.zip | |
drm: gem_cma_helper.c: Allow importing of contiguous scatterlists with nents > 1
drm_gem_cma_prime_import_sg_table() will fail if the number of entries
in the sg_table > 1. However, you can have a device that uses an IOMMU
engine and can map a discontiguous buffer with multiple entries that
have consecutive sg_dma_addresses, effectively making it contiguous.
Allow for that scenario by testing the entries in the sg_table for
contiguous coverage.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171110133310.1225-1-Liviu.Dudau@arm.com
Diffstat (limited to 'Documentation/devicetree/bindings/display')
0 files changed, 0 insertions, 0 deletions
