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.

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use RWLOCK_INITIALIZER() in DEFINE_MUTEX()
Gives rwlocks defined this way a non-NULL rwl_name.

Move ttm_pool_shrink_scan() DEFINE_MUTEX use out of function scope to fix
build with WITNESS after this

use RWLOCK_INITIALIZER() in DEFINE_MUTEX()
Gives rwlocks defined this way a non-NULL rwl_name.

Move ttm_pool_shrink_scan() DEFINE_MUTEX use out of function scope to fix
build with WITNESS after this change and expand macro to have a better
name than "lock".

Found by and ok semarie@

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correct mutex_lock_interruptible()

Linux kernel code often passes errors around as negative numbers cast to
pointers. As rw_enter() returns a errno on failure
mutex_lock_interruptible() negated the

correct mutex_lock_interruptible()

Linux kernel code often passes errors around as negative numbers cast to
pointers. As rw_enter() returns a errno on failure
mutex_lock_interruptible() negated the return value. But this did not
account for ERESTART being -1 which would return 1 to the caller.

sthen@ periodically hit a uvm_fault() in i915_request_create() which
was caused by attempting to use 1 as a pointer.

ok kettenis@

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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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Hook up the shrinker for inteldrm(4). This is a "light" version that only
drops graphics buffers that are cached and not in active use.
Help from beck@ for pointing out how to hook this up to our pa

Hook up the shrinker for inteldrm(4). This is a "light" version that only
drops graphics buffers that are cached and not in active use.
Help from beck@ for pointing out how to hook this up to our pagedaemon.

ok jsg@

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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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