Disable undefined behavior sanitizer on intel_workarounds.c,
I don't see a real bug here compiling kernel ALL/i386.

Maybe a GCC 14 bug?

avoid various seemingly bogus warnings with GCC 14.

i couldn't see any real case for any of these issues. it seems like
the "maybe uninit" checker has gotten worse.

additionally, the "dangling pointer" checker also failing.

match warnings with the module build, fixes i386 with GCC 12.

adapt to ${CC_WNO_MAYBE_UNINITIALIZED}

Use ${CC_WNO_MAYBE_UNINITIALIZED} instead of
the older style more complex expressions.

Remove workarounds if they were for a specific
version of gcc < 10.

adapt to ${CC_WNO_IMPLICIT_FALLTHROUGH}

Use ${CC_WNO_IMPLICIT_FALLTHROUGH} instead of
the older style more complex expressions.

drm: Propagate CPPFLAGS.drmkms into all the drm drivers.

i915: Remove spurious local i915_perf.c override.

i915: Use new acpidisp_register_notify for ACPI VGA events.

drm: sprinkle some -Wno-unused-function for clang

915_sw_fence.c: for debug_fence_init_onstack
drm_mm.c: for rb_hole_size_to_node
intel_hdmi.c: for intel_hdmi_hdcp2_protocol
intel_guc_submission.c: for rq_prio
nouveau_nvkm_subdev_instmem_base.c: for fake_ioread32_native
nouveau_nvkm_subdev_mmu_vmmnv04.c: for nv04_vmm_pgt_pte

i915: Draft gem fault.

i915: intel_engine_pm.c and i915_active.c

...with a little less heinous abuse of C, and an attempt to
disentangle the tentacular abstraction violations rampant in these
components

i915: Disentangle uabi engines rb/llist/list spaghetti.

i915: Odds & ends.

i915: Define trace points

Make intel_psr.c build
netbsd-ify
Stub out intel_lpe_audio.c (for now?).
Hammer intel_opregion.c into shape.
Hack up intel_lrc.c
Adapt intel_reset.c
Stub out intel_region_lmem.c
Adapt intel_ring_submission.c
Adapt intel_rps.c
Adapt intel_sdvo.c
Adapt intel_runtime_pm.c
Adapt intel_sideband.c
Adapt intel_sprite.c
Adapt intel_tv.c
Adapt intel_tc.c
Adapt intel_sseu.c
Adapt intel_timeline.c
Adapt intel_uc_fw.c and fix typo
Fix up intel_uncore.c
intel_vga.c
intel_wakeref.c
intel_vdsc.c
intel_wopcm.c
intel_workarounds.c
i915_globals.c
Fix up intelfb.c
Stub out intel_guc_log.c
Stub out intel_dsi_dcs_backlight.c
i915_perf.c
intel_hdmi.c
intel_hdcp.c


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

i915: more work

i915: more work

i915: hack hack hack

i915: more passes

i915: another whack at it

i915: More progress.

i915: Odds and ends.

i915: Adapt sw_fence.

drm: Another pass over i915. Most of i915 gem builds now.

i915_globals.c: don't build, not useful (we don't __init etc)


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

drm/i915: Undo local i915_sw_fence override.

The code is now MIT-licensed, so we no longer need to rewrite it.

drm/i915: Unhook i915_gem_client_blt.c and revert changes.

Only used by self-tests, which we're not using (for now...).

i915: Disable i915_active.c for now; needs more work.

i915: Touch up local i915_sw_fence stubs to make it compile.

i915: Disable CONFIG_DRM_I915_DEBUG_RUNTIME_PM.

No runtime_pm at all here for now.

Need to provide a value for CONFIG_DRM_I915_DEBUG_RUNTIME_PM

Maybe 1 will do.


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

i915: Disable -Wmissing-field-initializers.

i915: Fix include path for intelfb files too.

define CONFIG values to be the same as linux


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

Add include flag for intelfb.c's use of i915_drv.h header


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

Revert part of previous: no separate CPPFLAGS.drmkms.

There are too many drms users outside sys/external/bsd/drm2 for now;
will hold off on this until we find a better way to keep the drm
includes modularized.

Narrow the CPPFLAGS for drm subsystems.

No need for the whole kernel to be built with -I flags for the drm
header files.

Merge updated i915drmkms2netbsd output.

Comment out debugfs files, we probably don't want those.


Author: Maya Rashish <maya@NetBSD.org>

Remove duplicates and non-existent files.


Author: Maya Rashish <maya@NetBSD.org>

misc drm hacks

Disable the i915_oa_* files (for now?).

The initializers with overrides got moved to i915_pci.c.

Disable i915 alpha hardware support.

i915_pci.c collides; rename ours to i915_pci_autoconf.c.

Stub out i915_gemfs.c and i915_perf.c.

i915_mm.c is of no use to us.

First pass at i915, far from complete.

HEAVILY MODIFIED IN MERGE - maya

Rename intel_dsi.c -> vlv_dsi.c

Stub i915_sw_fence.c.

Disable *_trace_points.c.

I accidentally deleted these in the import, because the *_trace.h
files got in the way and I forgot the *_trace_points.c files were
fine.

There's nothing important in them anyway, so nothing of value is
lost. Maybe next time I will remember to delete the *_trace.h files
on import but not the *_trace_points.c to reduce diffs, but that's
too much trouble at this point.

Generate files.* using the 2netbsd scripts.


Author: Maya Rashish <maya@NetBSD.org>

drm2: build with -fwrapv, since the Linux kernel does and we don't
want to spend too much time fixing their code. silences a lot of
KUBSAN warnings.

we need to use COPTS to have per-option compiler flags. help from
Riastradh.

branches: 1.40.2; 1.40.6;
apply some -Wno- to ignore several new warnings with GCC 10.


ntp: ignore truncation beyond api sizes, and ignore wrongly
guessed underflow

tmux: ignore maybe uninitialised warning for impossible case

libbfd: signed/unsigned variables assigned in the same statement

dri/gallium: -Wno-builtin-declaration-mismatch for u_atomic.c as
it implements backend functions with different in-C-machine but
same-in-real-machine types

libXfont/libXfont2: signed/unsigned variables assigned in the same
statement

i915drm: ignore impossible maybe uninitialised warnings

sysinst: ignore an invalid string truncation issue

branches: 1.39.8;
Eliminate -Wpointer-arith patches; use -Wno-pointer-arith instead.

branches: 1.38.2;
convert HAVE_GCC == 7 to HAVE_GCC >= 7.

add -Wno-error=int-in-bool-context or -Wno-error=implicit-fallthrough
for various drm files that would be best ignored or upstream fixed.
(could fix savagedrm, no one upstream is that any more.)

Fix merge botch.

Merge the [pgoyette-compat] branch

i915drmkms requires firmload. PR 53892

Appease GCC with a kernel sanitizer

Add -Wno-maybe-uninitialized for intel_sprite.c that is a false positive.

Tag files.* with newer config version where needed.

Draft support for drm prime.

Put override directory first in CPPFLAGS.

Move CPPFLAGS to top, CWARNFLAGS below.

Omit commented warn flag, evidently needless.

Stub out intel_dsi_init.

Ifdef out Linux audio API stuff and re-enable intel_audio.c.

Override i915_gem_userptr.c with stubs for now.

Restore intel_fbdev.c.

Disable mipi dsi stuff until I can figure it out.

Just do all of i915drmkms with -Wno-shadow.

Disable intel_audio.c until we figure out how to make it talk to hdaudio.

i915_gem_gtt.c shadows.

Override i915_sysfs.c.

Allow shadowing in i915_vgpu.c.

i915_gpu_error.c shadows, don't worry about it.

Don't worry about shadowing here.

Think we're gonna need to override i915_gem_userptr.c.

bring in old drm changes

ifdef out some fb_info usage which we don't have and some of it
ifdef'd out in old drm

strangely reg_offset isn't used in the i2c whatever-thing

we need one more member to drm_fb_helper

define CONFIG_DRM_FBDEV_EMULATION so hopefully fewer redefinitions


Author: coypu <coypu@sdf.org>
Committer: Taylor R Campbell <riastradh@NetBSD.org>

regen files.i915drmkms

Move local i915 files earlier to make them more obvious.

branches: 1.11.16; 1.11.18;
Tweak IS_ENABLED to allow CONFIG_FOO values.

No functional change to drm2.

LGTM from riastradh@

Factor generic parts of intelfb out into a drmfb.

Adapting radeondrmkmsfb should not be hard.

This will make nouveaufb easier too.

branches: 1.9.2;
Fix build with clang.

i915drmkms(4): Enable CONFIG_ACPI if NACPICA > 0.
Now brightness can be adjusted via hotkey on Mouse Computer LB-J300X (Clevo W330SU2).

We need the i810 agp here, intel_gtt has it hard-coded.

branches: 1.6.2;
Restore Intel opregion stuff.

branches: 1.5.2;
Move CONFIG_X86 from files.i915drmkms to drm_os_netbsd.h.

Rework Intel framebuffer attachment.

Turns out genfb_softc must be at the start of its own device_private,
so we can't have it in the middle of a structure, and certainly can't
have potentially multiple genfbs per graphics device. Failing to do
this is why entering ddb didn't work with an i915drmkms console.

Instead of putting a genfb_softc into each drm_fb_helper, put a
device_t into each drm_fb_helper and create a new intelfb(4) device
for each Intel framebuffer. This will be more flexible, too, in case
we want accelerated framebuffers later on. (XXX Need to adapt the
radeon code, which I'm disabling until that happens to avoid breaking
the build.)

While here, defer disabling VGA, vga_cndetach, and genfb_attach until
we're actually ready to do them all together along with the mode
switch. This should reduce the amount of time during which the
screen is blanked, in case it hangs.

Make it build and boot on my test machines.

Screen blanks on boot on the Ivy Bridge system with

DRM error in cpt_serr_int_handler: PCH transcoder A FIFO underrun

But after that everything is OK. Appears to be an upstream problem.
To investigate...

I think there's a cache flushing issue somewhere -- there are little
display artefacts on my T60.

branches: 1.2.2; 1.2.4; 1.2.6;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file files.i915drmkms was initially added on branch riastradh-drm2.