sysmon: Delete trailing whitespace.  No functional change intended.

(riastradh)

doc: Update TODO.smpnet to reflect invention of ETHER_F_ALLMULTI.

(riastradh)

acpiout(4): Work around firmware that doesn't like some brightnesses.

Instead of just asking for cur - 5 or cur + 5, repeatedly ask for
that increment, check whether we actually made progress in that
direction, and if not keep going with another increment, until we hit
the bounds of brightness levels.

I can't find anything in the ACPI spec about this, but my laptop
seems to have trouble with certain levels: 15, 75, 85, 95.  It goes
in all other increments of 5 from 5 to 100, just not those ones --
acts as if the change just never happened, so with the old logic the
brightness up/down would get stuck unable to move in either
direction.

This should have no impact on machines where the first increment
actually takes.

(riastradh)

drm: Restore hw.drm2.debug sysctl knob, previously lost in merge.

(riastradh)

zfs: Expose hostid to zfs, as in gethostid/sethostid(3).

If set to nonzero, the hostid is recorded in the metadata of a zpool,
and checked by `zpool import' when the pool has not been explicitly
exported.  After reboot, zpool import will not need `-f' to reimport
the pool.

Setting the hostid must be done explicitly through sysctl (or the
sethostid(3) library call) on all ports except acorn32, amiga,
mvme68k, newsmips, sparc, sparc64, sun2, and sun3.  So for most users
this change will have no immediate effect.  But you can obviate the
need for `zpool import -f' by adding `kern.hostid=123456789' to
/etc/sysctl.conf and importing the pool one last time with `-f'.

(riastradh)

kern: Show relevant variables for uidinfo counts in kasserts.

(riastradh)

wd(4): Fix bugs in softbadsect handling.

- Don't copyout kernel virtual addresses (of SLIST entries) that
  userland won't use anyway.
  => The structure still has space for this pointer; it's just always
    null when userland gets it now.

- Don't copyout under a lock.

- Stop and return error if copyout fails (unless we've already copied
  some out).

- Don't kmem_free under a lock.

XXX Unclear whether anyone actually uses WD_SOFTBADSECT or why --
it's always been disabled by default.  Maybe we should just remove
it?

(riastradh)

sys: Use preempt_point and preempt_needed, not open-coded versions.

(riastradh)

mii(9): Fix callout race between mii_phy_down and mii_phy_detach.

(riastradh)

cgd(4): Fix criterion for detach when wedgies are held.

The somewhat confusingly named DK_BUSY(dksc, pmask) answers the
following question:

        Suppose I hold either the character or the block device (but
        not both) of all of the partitions in pmask.  Is anyone else
        using the disk, rendering it unsafe to detach?

This is useful for ioctls like CGDIOCCLR and VNDIOCCLR, which must be
issued on open file descriptors for the disk, so the question cannot
simply be answered by testing whether dk_openmask != 0.

Instead, DK_BUSY breaks the question into the following criteria:

        1. Are there any _other_ partitions than those in pmask open
          at all?  If so, it must be someone else, since I only hold
          partitions in pmask -- hence the disk is busy.

        2. Are any of the partitions in pmask open _both_ as a block
          device _and_ as a character device?  If so, it must be
          someone else, since I only hold _either_ the character
          _or_ the block device open but not both -- hence the disk
          is busy.

When config_detach_all runs at shutdown time, it tries to detach
cgd(4), which has DVF_DETACH_SHUTDOWN; this is important so we submit
queued writes to the underlying disk and wait for them to complete
with dk_drain.

If cgd(4) has any dk wedges with file systems mounted still
configured on it, it isn't ready to detach yet.  But asking
DK_BUSY(dksc, 1 << RAW_PART) returns false, because the dk wedges
only hold RAW_PART open as a block device -- so if nobody has
RAW_PART open as a character device, or any other partitions open,
cgd_detach blithely goes on its way to forcibly detach the wedges.

Instead, ask DK_BUSY(dksc, 0), because the caller -- cgd_detach
issued by config_detach_all -- does not, in fact, hold any partitions
open, so it doesn't need to work around them like ioctl(CGDIOCCLR)
does.  Fixes hang in zfs on dk on cgd during shutdown (and probably
also zfs on cgd without any intervening dk but I haven't tested).

(This change might have the side effect that `drvctl -d cgdN' doesn't
work, but I don't care.)

XXX pullup-9
XXX pullup-8 (...-7, -6, -5...)

(riastradh)

linux: Fix copypasto in comment.

(riastradh)

i915: Fix timeout return value of i915_request_wait.

For some reason this returns ETIME, not ETIMEDOUT or 0 like most
other wait-with-timeout things in Linux.

(riastradh)

i915: Factor a little out of #ifdef NetBSD.

Doesn't really reduce diff but slightly reduces danger of bad merge.

(riastradh)

i915: Omit diff now that TASK_INTERRUPTIBLE is defined.

(riastradh)

drm: Define TASK_INTERRUPTIBLE so we can reduce diffs a little.

(riastradh)

i915: Disable message citing firmware URL.

Not very helpful for users; helpful only for developers maintaining
the gpufw set, who can find it by searching the source of the
message.  (Also it was missing a newline which is very confusing!)

(riastradh)

linux: Define mb/wmb/rmb as mfence/sfence/lfence on i386 too.

Not the same as membar_*; drm uses mb to order special instructions
like clflush which require mfence for ordering.

(riastradh)

sys: Skip suspendsched on cpu_reboot if we're in ddb.

If we're in ddb, the scheduler and all other CPUs are quiesced
anyway.  But suspendsched will try to take an adaptive lock, which
causes it to crash and re-enter ddb, which isn't very useful for
rebooting.

(riastradh)

i915: Unifdef cnp_enable/disable_backlight.

Not sure why this was ifdef'd out in the first place!  Appears to
have been a mistake in merge.

(riastradh)

drm: Fix locking around accurate vblank counts.

- Make drm_crtc_accurate_vblank_count require the caller to hold the
  event lock, rather than take it internally.

- Fix locking around drm_crtc_accurate_vblank_count and related
  operations in amdgpu and nouveau interrupt handlers.

- Use drm_crtc_vblank_put_locked, not drm_crtc_vblank_put, when we
  already hold the event lock.

PR kern/56557

(riastradh)

drm: Allow ww_mutex_lock after ww_acquire_done if we already hold it.

In other words, if ww_mutex_lock would return -EALREADY, that's OK and
does not warrant an assertion.

PR kern/56557

(riastradh)

ukbd(4): Wait for callouts and blinking to complete in detach.

This detach routine (and whole driver) has got a lotta other
problems, but let's fix 'em one at a time...

(riastradh)

malo(4): Fix line breaks in attach output.

(riastradh)

drm: Fix missing newline in DRM_WARN (redux).

(riastradh)

Revert "drm: Fix missing newline in DRM_WARN."

Accidentally included more than I intended here.

(riastradh)

drm: Fix missing newline in DRM_WARN.

(riastradh)

drm: Sprinkle some assertions into sg dma logic.

(riastradh)

i915: Use AcpiOsMapMemory, not bus_space_map, for opregion.

Needed because this appears in firmware-type memory mappings, which
are excluded from bus_space_map.

XXX pullup-9 (via manual patch since the code has changed a bit)

(riastradh)

i915: Restore uao_set_pgfl for i915 gem objects, lost in the merge.

Needed to ensure we allocate paddrs that the GPU can cope with.

(riastradh)

amdgpu: Sprinkle __diagused.

(riastradh)

i915: Fix memory leak in active node allocation under #ifdef NetBSD.

Potential fix for PR kern/56573.

(riastradh)

pool(9): Fix default PR_NOALIGN for large pool caches.

Was broken in recent change to separate some pool cache flags from
pool flags.

Fixes crash in zfs.

(riastradh)

drm: Omit local diff -- vmem is entirely a NetBSDism.

Use struct vmem rather than vmem_t to obviate need for header file
dependency.

(riastradh)

scsi(4): Take kernel lock around entry into autoconf.

This code paths is entered by kthreads marked MP-safe, not just from
autoconf.

I'm not sure this is sufficient -- it's not clear to me whether
anything prevents concurrently scanning the same target.  Someone with
a better understanding of scsi(4) locking will have to audit this.

(For example, maybe it is guaranteed only to happen only either (a)
in autoconf, or (b) in a thread that doesn't start until autoconf is
done.  But I don't know -- and if it is this, it should be asserted
so we can verify it.)

(riastradh)

tpm(4): Fix disabling of rnd source if tpm is deactivated.

Nothing prevents a second worker from being queued when the first one
is about to do rnd_detach_source.  Instead, just set a flag so future
requests don't bother running a new thread; if there's a concurrent
one that's already been scheduled on another CPU, well, too bad, we
get a couple extra log messages but that's fine.

A better way to do this would probably be to detect whether the tpm
is deactivated at attach time, but that requires reading more of the
tpm spec than I care to do when there are alternative ways to
procrastinate like scrubbing the toilet.

(riastradh)

ieee1394: Need kernel lock around config_found.

(riastradh)

i915: Obviate need for __diagused on variables in GEM_BUG_ON.

(riastradh)

i915: Mark a KASSERT-only variable __diagused.

Minor KNF fix while here.

(riastradh)

drm: Apply the Intel pipe_drmhack in more places.

See sys/external/bsd/drm2/dist/drm/i915/intel/intel_display.h for
details.  Should reduce ctf type duplication a fair bit, maybe even
enough to get us under the 2^15 type limit.

(riastradh)

drm: Simplify use of drm API for display on/off logic in drmfb.

(riastradh)

drm: Fix return code interpretation in timed wait loop.

(riastradh)

rkdrm: Implement vblank.

(riastradh)

Fix i386 modules build: viadrmums requires CONFIG_DRM_LEGACY.

(riastradh)

linux: Define need_resched as alias for preempt_needed.

No need to open-code this (nor to do it slightly wrong).

(riastradh)

i915: Use BUS_DMA_COHERENT where Linux uses dma_alloc_coherent.

(riastradh)

nouveau: adjust the list of PCI devices to match

linux 5.6 drm supports all the cards previously listed as unsupported.
make those supported, and, add the newer list of unsupported (the
supported list goes to GTX 20 series.)

Author: phone <mrg@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

rkdrm: Implement atomic disable for planes.

(riastradh)

rkdrm: Turn display off and back on again at config_interrupts.

This grody kludge works around whatever we're doing wrong in the
initial modeset that causes it not to take.

(riastradh)

rkdrm: Reset vop for 10us on attach.

This avoids creepy lines slowly appearing, and freezing themselves
semipermanently on the display, until the first successful modeset.

(riastradh)

rkdrm: Comment why we config_defer rk_drm_init.

(riastradh)

drm: Do the attach task dance for ti lcdc drm.

(riastradh)

drm: Do the attach task dance for tegra drm.

(riastradh)

drm: Sprinkle miscellaneous includes.

(riastradh)

drm: Fix tda19988 drm build.

(riastradh)

drm: Fix arm/ti drm build.

(riastradh)

drm: Make tegra drm build again.

(riastradh)

drm: Restore local patch for struct drm_connector::physical_address.

(riastradh)

drm: Allow drm_atomic_helper_wait_for_vblanks while cold.

This enables us to do a mode-switch before interrupts are running.

(riastradh)

nouveau: Disable MSI on G84 devices.

Fails to switch modes with MSI, works without MSI, on T61p.

(riastradh)

rkdrm: Convert to atomic modesetting, as needed for bridges.

Author: Jared McNeill <jmcneill@invisible.ca>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

rkdrm: Do drm_mode_config_reset on init.

(riastradh)

drm: Use {} instead of [] for drm prints.

Using [] confuses dmesg timestamp parsing.  We should maybe fix that,
but this will serve for now.

(riastradh)

i915: For now, pretend gtt size is zero.

Something goes wrong with EXEC_OBJECT_PINNED in Mesa i965 brw bufmgr
if we expose this parameter; this is a sleazy workaround pending
diagnosis of the underlying problem.

(riastradh)

drm: Work around busted kthread_join.

(riastradh)

drm: Don't try to use sched->thread until it's initialized.

(riastradh)

drm: Fix error return for kthread_run: error pointer, not null.

(riastradh)

drm: Omit needless local brace diff.

(riastradh)

drm: Take advantage of kthread interlock to reduce diff.

(riastradh)

drm: Rework Linux `kthread' abstraction to avoid race to sleep.

Requires passing in the caller's lock and condvar to kthread_run, but
for the one user that appears not to be an onerous requirement.

(riastradh)

drm: Trigger `spurious' wakeup for kthread_stop too.

(riastradh)

drm: Mark variable as used only by trace point.

(riastradh)

drm: add drm_dp_aux_fini; use it in i915 to fix missing mutex destroy.

Author: chuq <chs@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

drm: Omit bogus spin locking around kthread_stop, which blocks.

Blocking is not allowed while holding a spin lock, and there's
nothing here that needs a lock either.

(riastradh)

amdgpu: Don't unmap doorbells if we didn't map them.

(riastradh)

amdgpu: Fix register offsets in amdgpu_mm_rreg8/wreg8.

We already added rmmio_base when mapping rmmioh; let's not add it
again!

(riastradh)

drm: Fix comments about wait return values.

(riastradh)

drm: Ensure DRM_*WAIT* never counts down from MAX_SCHEDULE_TIMEOUT.

This faux timeout means `wait forever'.

(riastradh)

i915: Use splx, not splraise, to restore IPL after splsoftserial.

(riastradh)

drm: Switch sense of #if __linux__ conditionals to use __NetBSD__.

Keep it consistent with the rest of drm.

(riastradh)

i915: Fix some timeout return values in gmbus and dp logic.

(riastradh)

nouveau: fix a "can return -1 to userland" problem.

nvkm_ioctl_del() for some reason converts 0 into 1 return.  this
appears to be a way to avoid having a log printed by nvkm_ioctl()
and to trigger some dead code ("hack" is always NULL afaict.)
after consuming this value convert it back to 0 for ioctl return.

Author: phone <mrg@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

linux: Fix rcu_barrier so it actually waits for everything.

(riastradh)

drm: Make dma fence array name strings match Linux.

(riastradh)

drm: Make scheduler mandatory to make amdgpu module simpler.

(riastradh)

drm: Use atomic_load_consume/relaxed to simplify code.

(riastradh)

drm: Implement dma fence chains.

(riastradh)

drm: Support 64-bit fence context and sequence numbers.

(riastradh)

drm: Release fence in dma_fence_chain_walk.

(riastradh)

amdgpu: New kernel module build goo.

(riastradh)

linux: In kthread_park, wake thread to re-check kthread_shouldpark.

Otherwise, the thread to pakr may be sleeping on some condvar not
noticing it has to notify kthread_park --> deadlock.

(riastradh)

amdgpu: Try turning on MSI.

(riastradh)

amdgpu: Read amdgpu_ctx_entity::sequence under the lock.

(riastradh)

drm: Make sure dma_fence_wait gets traced too.  Deduplicate.

(riastradh)

amdgpu: store process and lwp info for netbsd in amdgpu taskinfo.

Author: phone <mrg@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

drm: Add dtrace probes to fences.

(riastradh)

drm: Fix signalling return value if no enable_signaling op.

(riastradh)

amdgpu: Reduce unhelpful sprintf diffs.

(riastradh)

Destroy lock before freeing

Author: Maya Rashish <maya@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

i915: Make intel_gtt_get prototype match Linux.

(riastradh)

i915: Omit spurious compile-time assertion.

The assertion failed on i386 with our struct drm_fence_callback.
Could change drm_fence_callback to be a little smaller (use the
nullness of the previous pointer instead of a separate boolean to
detect whether it's on the list, perhaps).  But it's unclear why the
relative sizes of these members matter; they're in a union.  Upstream
commit message doesn't illuminate.

(riastradh)

i915: Suppress spurious -Wmaybe-uninitialized warnings.

(riastradh)

drm: Make resource_size return resource_size_t like Linux.

Because Linux uses resource_size_t for absolute bus addresses, it is
actually bus_addr_t rather than bus_size_t.  So using bus_size_t here
causes trouble with the i915 range_overflows macro, which verifies
that types match.

(riastradh)

amdgpu: Add a cautionary comment about non-LP64 branch.

(riastradh)

drm: Work around bus_space_read_8 on LP32.

(riastradh)

amdgpu: Fix indexing for 64-bit doorbells.

(riastradh)

drm: Must hold event_lock around wait on event_queue.

We must not have hit this path before if it never crashed!

(riastradh)

drm: Spruce up ww_mutex comments.  Audit return values.

(riastradh)

i915: Fix destroy/free order for i915 gem stub fence.

(riastradh)

linux: Fix wait_bit semantics.

- wait_on_bit is supposed to wait until the bit is cleared, not set.

- wait_on_bit_timeout is supposed to return 0 on success, -EAGAIN on
  faiure.

Omit wake_up_bit; nothing uses it and clear_and_wake_up_bit is a more
semantically coherent operation.

(riastradh)

drm: Fix comment about dma_resv_lock_* return values.

(riastradh)

drm: Timeout audit -- linux/sched.h.

(riastradh)

drm: Timeout audit -- drm_syncobj.c.

(riastradh)

linux: Timeout audit -- linux/completion.h.

(riastradh)

drm: Make sure to initialize syncobj wait point.

(riastradh)

drm: Use atomic_load_relaxed for fence->flags when not locked.

Shouldn't make a semantic difference on any machines we run on, but
will make sanitizers happier and emphasize to readers that the result
may not be reliable at these points.

(riastradh)

i915: Terminate inner loop if we hit end of view.

(riastradh)

i915: Assert output segment index.

(riastradh)

drm: Assert dma_fence_wait internal return value.

(riastradh)

i915: Tighten assertion about segment index.

(riastradh)

drm: Fix drm_symstr with pserialize.

(riastradh)

i915: Fix locking-against-self in i915_request_wait.

(riastradh)

drm/scheduler: Release job list lock arond kthread_parkme.

(riastradh)

drm: Rework timeout return code logic.

(riastradh)

drm: Rework dma_fence_wait_any_timeout.

- Yield the first index, not the most recently signalled one.
- Check again after last wakeup.
- Make sure to return positive for nontimeout.
- Handle ip=null.

(riastradh)

i915: Fix wakeref destruction.

(riastradh)

drm: Fix semantics of del_timer, del_timer_sync.

(riastradh)

drm: Paranoia: handle fencep=null, fence!=null, and 0 shared.

Not sure this is possible but I don't know the API well enough to
prove it can't happen.

(riastradh)

drm: Fix missing restart on race in dma_resv_get_fences_rcu.

(riastradh)

drm: Another missing spin_lock_destroy.

(riastradh)

amdgpu: call pmap_pv_track/untrack for the graphics aperture.

Author: phone <mrg@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

drm: Fix an even number of sign errors in interval_tree_generic.h.

(riastradh)

amdgpu: more destroy fixes.

Author: phone <mrg@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

drm: Support dma_resv_reserve_shared(..., num_fences>1).

(riastradh)

drm/scheduler: spin_lock_init/destroy audit

(riastradh)

i915: mutex_init/destroy and spin_lock_init/destroy audit

(riastradh)

drm: mutex_init/destroy and spin_lock_init/destroy audit

(riastradh)

amdgpu: mutex_init/destroy and spin_lock_init/destroy audit

(riastradh)

drm: Implement drm_resv_get_fences_rcu with null fencep.

(riastradh)

nouveau: Remove post-merge audit comments -- LGTM.

(riastradh)

nouveau: Map write-combining in instmem/nv40 like Linux does.

(riastradh)

drm: Set fence->ops for stub fences too.

(riastradh)

amdgpu: Call idr_preload(_end) around idr_alloc, outside lock.

(riastradh)

drm: add destruction.

Author: phone <mrg@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

amdgpu: Run module initialization.

(riastradh)

drm: Fill in fake connector->kdev pointing at the drm device.

Hope this will make progress -- hope it won't screw up too badly if
two connectors have the same kdev!

(riastradh)

drm: Make via build again.

(riastradh)

amdgpu: Disable atomic modeset like upstream does for now.

(riastradh)

drm: Make some legacy UMS crap build.

(riastradh)

drm: Avoid locking against self in scheduler.

(riastradh)

drm: Avoid potential integer overflow in pages->bytes conversion.

(riastradh)

linux: Make kthread_park/stop work at IPL_VM.

Needed in order to hold spin locks around it.

(riastradh)

amdgpu: Set a sensible maxsegsz for ih ring DMA map.

We need this to fit in one contiguous segment, so the maxsegsz had
better be at least the size we ask for, not something much smaller!

(riastradh)

amdgpu: Fix bogus assertion about number of DMA segments.

(riastradh)

drm/ttm: Fix ttm_tt pages and DMA map allocation.

(riastradh)

drm: Downgrade warnings from aprint_error to aprint_normal.

(riastradh)

i915: Backport fix for locking-against-self on attach.

commit d1b2828af0cc414356c18d7814b83ba33b472054
Author: Ville Syrj辰l辰 <ville.syrjala@linux.intel.com>
Date:  Wed Jan 22 22:43:29 2020 +0200

    drm/i915: Fix modeset locks in sanitize_watermarks()

    We've added more internal things that use modeset locks and
    thus we need to be prepared for intel_atomic_check() grabbing
    more locks than what our initial drm_modeset_lock_all_ctx()
    took. So we're missing the backoff handling here.

    Also drm_atomic_helper_duplicate_state() works against us
    by clearing state->acquire_ctx in anticipation of
    drm_atomic_helper_commit_duplicated_state() being used to
    commit the state.

    We could probably just reset acquire_ctx back, but instead
    let's just rewrite the whole thing without using either of
    those "helpers". There's also no need to add any connectors
    to the state here since we just want the new watermarks
    which don't depend on connectors.

    Cc: Chris Wilson <chris@chris-wilson.co.uk>
    Signed-off-by: Ville Syrj辰l辰 <ville.syrjala@linux.intel.com>
    Link: https://patchwork.freedesktop.org/patch/msgid/20200122204329.2477-1-ville.syrjala@linux.intel.com
    Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

(riastradh)

sunxi/drm, rockchip/drm: Avoid messy error output.

(riastradh)

rockchip/drm: use drm_helper_mode_fill_fb_struct or say why not.

Author: phone <mrg@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

rockchip/drm: use an explicit task queue to avoid config_defer pitfalls.

Author: phone <mrg@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

sunxi/drm: Use an explicit task queue to avoid config_defer pitfalls.

Same as the other drm drivers.

(riastradh)

drm: Rework attach/detach and deferred task logic.

- Reduce the number of states the softc can be in.
- Fix races between attach and other threads.

(riastradh)

drm: Move io_mapping to very own .c file.

(riastradh)

drm: Allow multiple concurrent io_mapping_map_wc on the same space.

(This should maybe check that there aren't overlapping maps of the
same parts of the space.)

(riastradh)

linux: Downgrade warning about flushing from workqueue to debug.

(riastradh)

i915: Fix gen6 pd_vma_bind.

We only need space for the ppgtt in this vma, not space for the whole
VM.

(riastradh)

i915: Spruce up assertion in gen6_ppgtt.c pd_vma_bind.

(riastradh)

i915: Use pmap_pv_protect on the paddrs for unmap_mapping_range.

(riastradh)

i915: Fill out i915_gem_phys_pwrite.

(riastradh)

i915: Figure out the graphics stolen memory base.

(riastradh)

i915: Rearrange how mmap offsets work.

Rather than use the magic offsets in each GEM object's uvm object
itself, just create a separate uvm object for each mapping type and
start at zero within each uvm object.  This should avoid problems
with things like ubc_uiomove which don't know to adjust the starting
offset.

(riastradh)

i915: Fix partial object views -- start at the offset.

(riastradh)

drm: Factor dma_fence_put out of multiple dma_resv_do_poll branches.

(riastradh)

drm: Fix dma_resv_test_signaled_rcu and dma_resv_wait_timeout_rcu.

Make them implemented the semantics as documented like Linux does:
only test the exclusive fence if there's no shared fences.

(riastradh)

drm: Make sure to check read ticket after reading shared fences.

Not entirely sure it was a bug not to do that, but let's make it easy
to prove that we got a consistent snapshot of the whole picture.

(riastradh)

drm: Write comment for dma_resv_get_fences_rcu semantics.

(riastradh)

drm: Factor out logic to read snapshot of fences in dma_resv.

Should make auditing a little easier.

(riastradh)

i915: Mark shmem object pages dirty if needed before unwiring them.

Unlikely to fix the graphics corruption we're seeing, though --
should be relevant only if we're swapping.

(riastradh)

i915: Suggest gnats.n.o, not fdo gitlab, for bugs.

(riastradh)

i915: Omit more unnecessary local diffs.

(riastradh)

i915: Restore i915_gem.c shmem_pwrite.

This was ifdef'd out back when it was a fast path shmem_pwrite_fast
using __copy_in_user_inatomic, but the ifdef got merged anyway into a
different function that is not a fast path.

(riastradh)

linux: For uniprocessor, define smp_*mb as __insn_barrier.

Otherwise ordering might not be guaranteed in the event of
preemption.

XXX pullup

(riastradh)

linux: Eliminate read_barrier_depends, smp_read_barrier_depends.

These no longer exist in Linux; instead, Linux now uses READ_ONCE.

(riastradh)

linux: Define mb/wmb/rmb for x86.

These are _not_ SMP barriers; on Linux they specifically mean
mfence/sfence/lfence.  Although membar_sync and mb agree, and
membar_consumer and rmb agree, membar_producer and wmb _do not_ agree
on x86 -- Linux's wmb is specifically sfence, which is important only
for unusual memory types, whereas our membar_producer is limited to
ordinary memory.

(riastradh)

drm: Use drm_vblank_get_locked/unlocked.

(riastradh)

i915: No need for #ifdef __NetBSD__ to sprinkle legitimate const.

(riastradh)

i915: Remove local diffs obviated by -fwrapv.

(riastradh)

amdgpu: Factor out float build options.

(riastradh)

linux: Paranoia: Don't read kt_shouldstop unlocked.

(riastradh)

Avoid kernel assertion mod->mod_required == NULL kern_module.c:910

Author: Maya Rashish <maya@NetBSD.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

(riastradh)

linux: ktime_get_real_seconds

(riastradh)

radeon: Fix dma_addressing_limited call.

(riastradh)

drm: Draft dma-fence-array.

(riastradh)

amdgpu: Make amdgpu_file_to_fpriv work.

(riastradh)

drm: In dma_fence_wait_timeout, allow MAX_SCHEDULE_TIMEOUT.

In the Linux API, this means wait forever.

(riastradh)

drm: Print bad timeout in dma_fence_wait_timeout kasserts.

(riastradh)

amdgpu: Stub out irq domain stuff with a finer grain.

(riastradh)

drm: linux kthread stubs

(riastradh)

linux: wait_for_completion

(riastradh)

amdgpu: Tie up some loose ends.

(riastradh)

amdgpu: Thread bus_dma segments through amdgpu_vm.c.

(riastradh)