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This is the same as the default drm_gem_dumb_map_offset()
implementation, except that this one missed the ban on userspace
mapping an imported dmabuf (which seems like intended common behavior
for drivers).
Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20181126215929.20546-1-eric@anholt.net
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Move vmap_count out of the conditional statement since it needs
to be updated for every successful call to vkms_gem_vmap.
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Fixes: bb112b14af8d ("drm/vkms: Add functions to map/unmap GEM backing storage")
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180801090807.GA4611@haneenDRM
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Use new return type vm_fault_t for fault handler.
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180726144549.GA9434@jordon-HP-15-Notebook-PC
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This patch add the necessary functions to map/unmap GEM
backing memory to the kernel's virtual address space.
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/4b6563ae4f4337a5fd51f872424addf64e8d59a6.1532446182.git.hamohammed.sa@gmail.com
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VKMS currently does not handle dumb data, and as a consequence, it does
not provide mechanisms for handling gem. This commit adds the necessary
support for gem object/handler and the dumb functions.
Changes since V1:
Daniel Vetter:
- Add dumb buffer support to the same patchset
Changes since V2:
Haneen:
- Add missing gem_free_object_unlocked callback to fix the warning
"Memory manager not clean during takedown"
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/70b7becc91c6a323dbc15cb5fc912cbdfe4ef7d9.1531359228.git.rodrigosiqueiramelo@gmail.com
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