Add more Linux compat code in preparation for the apple KMS driver.

ok jsg@

remove uneeded includes

update drm to linux 6.1.2

new hardware support includes

AMD
Raphael, Ryzen 7000 desktop, gfx1036/GC 10.3.6
Mendocino, Ryzen & Athlon 7020 Series mobile APU, gfx1037/GC 10.3.7
Navi 31, gfx1100 dGPU

update drm to linux 6.1.2

new hardware support includes

AMD
Raphael, Ryzen 7000 desktop, gfx1036/GC 10.3.6
Mendocino, Ryzen & Athlon 7020 Series mobile APU, gfx1037/GC 10.3.7
Navi 31, gfx1100 dGPU, GC 11.0.0, Radeon RX 7900 XT/XTX
gfx1101 dGPU
gfx1102 dGPU
gfx1103 APU

Thanks to the OpenBSD Foundation for sponsoring this work.

show more ...

change some defines to static inline functions

update drm to linux 5.15.14

new hardware support includes

Intel
ehl/Elkhart Lake (embedded)
jsl/Jasper Lake (atom)
rkl/Rocket Lake (desktop)

AMD
van gogh APU (gfx1033)
yellow carp / rembrandt AP

update drm to linux 5.15.14

new hardware support includes

Intel
ehl/Elkhart Lake (embedded)
jsl/Jasper Lake (atom)
rkl/Rocket Lake (desktop)

AMD
van gogh APU (gfx1033)
yellow carp / rembrandt APU (gfx1035?)
Ryzen 6000 APU
navy flounder / navi 22 (gfx1031)
RX 6700, RX 6700 XT, RX 6700M, RX 6800M, RX 6850M XT
dimgrey cavefish / navi 23 (gfx1032)
Pro W6600, Pro W6600M, RX 6600, RX 6600 XT, RX 6600M,
RX 6600S, RX 6650M, RX 6650M XT, RX 6700S, RX 6800S
beige goby / navi 24 (gfx1034)
RX 6500 XT, RX 6400, RX 6500M, RX 6300M

Thanks to the OpenBSD Foundation for sponsoring this work
niklas@ for helping with ttm and amdgpu and patrick@ for adapting
rockchip drm.

show more ...

call task_del() from destroy_work_on_stack()

prompted by jcs@ reporting a protection fault trap in
drm_mode_rmfb_work_fn() while playing a youtube video in firefox on a
kaby lake machine. He later

call task_del() from destroy_work_on_stack()

prompted by jcs@ reporting a protection fault trap in
drm_mode_rmfb_work_fn() while playing a youtube video in firefox on a
kaby lake machine. He later saw the same trace on tiger lake.

The previous attempt to avoid this situation by changing work flush
functions from taskq_barrier() to taskq_del_barrier() resulted in
suspend sometimes not working on various intel based thinkpads.

The only code we build which calls destroy_work_on_stack() is in
drm_framebuffer.c so the scope of this change is more limited.
Linux only uses destroy_work_on_stack() for debugging so the workqueue
behaviour still doesn't match.

This version is confirmed to not break suspend on x260 by sthen@ and
x280 by tb@ and still avoids the original problem according to jcs@

show more ...

return early if work is cancelled before being scheduled

cheloha@ noticed that task_del(9) was being called with a NULL taskq
from inteldrm(4), which was not noticed as the function returns early
fr

return early if work is cancelled before being scheduled

cheloha@ noticed that task_del(9) was being called with a NULL taskq
from inteldrm(4), which was not noticed as the function returns early
from testing a flag in the task. This situation occurs when work is
cancelled before it is scheduled.

ok kettenis@ cheloha@

show more ...

correct drm work flush behaviour

Don't set taskq to system_wq in INIT_WORK(). Test if taskq pointer is
non-NULL before calling taskq_barrier() in flush functions.

fixes a black screen on boot prob

correct drm work flush behaviour

Don't set taskq to system_wq in INIT_WORK(). Test if taskq pointer is
non-NULL before calling taskq_barrier() in flush functions.

fixes a black screen on boot problem with 5.10.y drm using nano x1
bisected by jcs@ to
'drm/i915: Always flush the active worker before returning from the wait'

show more ...

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.

show more ...

move irq_work bits into irq_work header

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.

show more ...