Thierry Reding f40e1590c5 gpu: host1x: Acquire a reference to the IOVA cache ... The IOVA API uses a memory cache to allocate IOVA nodes from. To make sure that this cache is available, obtain a reference to it and release the reference when the cache is no longer needed. On 64-bit ARM this is hidden by the fact that the DMA mapping API gets that reference and never releases it. On 32-bit ARM, this is papered over by the Tegra DRM driver (the sole user of the host1x API requiring the cache) acquiring a reference to the IOVA cache for its own purposes. However, there may be additional users of this API in the future, so fix this upfront to avoid surprises. Fixes: 404bfb78da ("gpu: host1x: Add IOMMU support") Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>		2018-05-17 17:44:48 +02:00
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drm	drm/tegra: Acquire a reference to the IOVA cache	2018-05-17 17:44:48 +02:00
host1x	gpu: host1x: Acquire a reference to the IOVA cache	2018-05-17 17:44:48 +02:00
ipu-v3	gpu: ipu-v3: prg: avoid possible array underflow	2018-03-15 17:52:08 +01:00
vga	vga_switcheroo: Let HDA autosuspend on mux change	2018-03-13 22:58:49 +01:00
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