Robin Murphy 59f39bfa65 drm/cma-helper: Set VM_DONTEXPAND for mmap ... drm_gem_cma_mmap() cannot assume every implementation of dma_mmap_wc() will end up calling remap_pfn_range() (which happens to set the relevant vma flag, among others), so in order to make sure expectations around VM_DONTEXPAND are met, let it explicitly set the flag like most other GEM mmap implementations do. This avoids repeated warnings on a small minority of systems where the display is behind an IOMMU, and has a simple driver which does not override drm_gem_cma_default_funcs. Arm hdlcd is an in-tree affected driver. Out-of-tree, the Apple DCP driver is affected; this fix is required for DCP to be mainlined. [Alyssa: Update commit message.] Fixes: c40069cb7b ("drm: add mmap() to drm_gem_object_funcs") Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211013143654.39031-1-alyssa@rosenzweig.io		2022-02-11 12:11:59 -05:00
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drm	drm/cma-helper: Set VM_DONTEXPAND for mmap	2022-02-11 12:11:59 -05:00
host1x	gpu: host1x: Add back arm_iommu_detach_device()	2021-12-16 14:28:51 +01:00
ipu-v3	media: i.MX6: Support 16-bit BT.1120 video input	2021-10-19 08:08:38 +01:00
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vga	vgaarb: don't pass a cookie to vga_client_register	2021-07-21 10:29:10 +02:00
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