fix llist_for_each_entry*

enabling more of __notify_execute_cb() and running the intel xorg driver
on broadwell would fault in __notify_execute_cb() on
movq 0x38(%rsi),%r12

offsetof(struct execute_

fix llist_for_each_entry*

enabling more of __notify_execute_cb() and running the intel xorg driver
on broadwell would fault in __notify_execute_cb() on
movq 0x38(%rsi),%r12

offsetof(struct execute_cb, work.node.llist) 0x38

llist_entry(NULL must not return NULL, it needs to wrap around
and return NULL minus the offset

the iterators stop when the offset added back to the result of
llist_entry() is NULL

they test that the first node is not NULL or that the next pointer
stored in a previous iteration of the loop is not NULL

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update drm to linux 5.7

adds kernel support for
amdgpu: vega20, raven2, renoir, navi10, navi14
inteldrm: icelake, tigerlake

Thanks to the OpenBSD Foundation for sponsoring this work, kettenis@ for

update drm to linux 5.7

adds kernel support for
amdgpu: vega20, raven2, renoir, navi10, navi14
inteldrm: icelake, tigerlake

Thanks to the OpenBSD Foundation for sponsoring this work, kettenis@ for
helping, patrick@ for helping adapt rockchip drm and many developers for
testing.

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Update shared drm code, inteldrm(4) and radeondrm(4) from linux 4.4 to
linux 4.19.34.

Adds support for more Intel hardware:
Broxton/Apollo Lake (was is_preliminary in 4.4)
Amber Lake (another Kaby L

Update shared drm code, inteldrm(4) and radeondrm(4) from linux 4.4 to
linux 4.19.34.

Adds support for more Intel hardware:
Broxton/Apollo Lake (was is_preliminary in 4.4)
Amber Lake (another Kaby Lake refresh)
Gemini Lake
Coffee Lake
Whiskey Lake
Cannon Lake (though no hardware with Intel graphics ever shipped)
Ice Lake (alpha support, hardware not released)

This does not add support for new radeon hardware on the AMD side as
newer radeons have a different kernel driver (amdgpu).

Thanks to the OpenBSD Foundation for sponsoring this work, kettenis@ for
helping and a bunch of other developers for testing.

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