amdgpu: Delete redundant local amdgpu_trace.h.

branches: 1.1.2; 1.1.6;
Add some amdgpu goo.

Remove last users of drmP.h.

branches: 1.1.2; 1.1.6;
Add some amdgpu goo.

linux/ktime.h for ktime_t


Author: Maya Rashish <maya@NetBSD.org>

Adapt stub prototype to usage


Author: Maya Rashish <maya@NetBSD.org>

Update drm vblank trace point signatures.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file drm_trace.h was initially added on branch riastradh-drm2.

branches: 1.1.2; 1.1.6;
Add some amdgpu goo.

drm: Mark variable as used only by trace point.

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>

Provide more trace points for intel_pm.c


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

i915: another whack at it

i915: Adapt i915_request.

i915: Fix up trace.

i915: More enum pipe hacks.

No more intel_drv.h, probably meant i915_drv.h if not used


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

Update i915 trace points.

Work around broken SDT_PROBE* in !KDTRACE_HOOKS until we merge HEAD.

Use dtrace probes to implement i915_trace.h.

New trace points.

Add trace_i915_flip_complete.

Add some shrinker trace points.

Add some trace points to i915_trace.h.

Add some more to i915_trace.h.

Update i915_trace.h.

Update i915_trace.h.

update i915_trace.h to build withotu -Werror

remove unused users of the type struct intel_ring_buffer
switch others to struct drm_i915_gem_request which is what callers
use.


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

make i915_trace.h match newer code


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

branches: 1.3.4; 1.3.28; 1.3.30;
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 i915_trace.h was initially added on branch riastradh-drm2.

Add trace_radeon_vm_flush stub.

branches: 1.1.2; 1.1.6; 1.1.30; 1.1.32;
First whack at radeon driver.

No hardware to test yet, but it builds.

branches: 1.1.4;
drm: Set CONFIG_ACPI in linux/acpi.h and make it build.

Leave a little ACPI-related functionality disabled for now, like
getting EDID out of ACPI -- needs a bit more work to make this work,
and I don't have hardware to work on that.

Should help with failures of the forms:

- unable to locate a BIOS ROM
- bios: unable to locate usable image

on various machines.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file button.h was initially added on branch riastradh-drm2.

drm: Set CONFIG_ACPI in linux/acpi.h and make it build.

Leave a little ACPI-related functionality disabled for now, like
getting EDID out of ACPI -- needs a bit more work to make this work,
and I don't have hardware to work on that.

Should help with failures of the forms:

- unable to locate a BIOS ROM
- bios: unable to locate usable image

on various machines.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.66;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file video.h was initially added on branch riastradh-drm2.

map_page_into_agp, unmap_page_from_agp stubs.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file agp.h was initially added on branch riastradh-drm2.

Move barrier to common so it can be shared with vchiq

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file barrier.h was initially added on branch riastradh-drm2.

Move linux/bug.h and asm/bug.h to common.

Define BUILD_BUG_ON_INVALID.

Define DRMCTASSERT() for Compile-Time DRMKMS asserts

Switch CTASSERT() to DRMCTASSERT() in BUILD_BUG_ON().

This fixes build issues with disabled compieler optimization.

Adapt DRMKMS BUILD_BUG_ON_MSG() to static_assert semantics

static_assert is violated with runtime-only compiler semantics in a few
places. Instead of breaking the build, stop asserting these corner cases.

provide BUILD_BUG_ON_MSG


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

don't provide dev_to_i915 and ifdef out all users (unused)
provide nsecs_to_jiffies64, hopefully msec_to_jiffies * 10^6
provide BUILD_BUG as a no-op
include linux/err.h instead of matching side-loading, too hard to
figure out what gets it.


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

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.34; 1.2.36;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file bug.h was initially added on branch riastradh-drm2.

Missed a drm2 -> common move.

branches: 1.3.4; 1.3.30; 1.3.36;
First whack at radeon driver.

No hardware to test yet, but it builds.

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

branches: 1.1.2;
file byteorder.h was initially added on branch riastradh-drm2.

linux: Use sys/cpu.h, not machine/cpu.h.

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

boot_cpu_has(X86_FEATURE_PAT)

Define x86 static_cpu_has(X86_FEATURE_CLFLUSH), clflush.

x86: fix several CPUID flags

- Rename: CPUID_PN -> CPUID_PSN
CPUID_CFLUSH -> CPUID_CLFSH
CPUID_SBF -> CPUID_PBE
CPUID_LZCNT -> CPUID_ABM
CPUID_P1GB -> CPUID_PAGE1GB
CPUID2_PCLMUL -> CPUID2_PCLMULQDQ
CPUID2_CID -> CPUID2_CNXTID
CPUID2_xTPR -> CPUID2_XTPR
CPUID2_AES -> CPUID2_AESNI
To match the x86 specification and the other OSes.

- Remove: CPUID_B10, CPUID_B20, CPUID_IA64. They do not exist.

branches: 1.4.2; 1.4.6; 1.4.8;
Define cpu_has_pat for x86.

Make this a proper boolean. Skip ISSET. Add some spacing.

Define cache_line_size() using ci_cflush_lsize.

Define cpu_has_clflush in <asm/cpufeature.h>.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file current.h was initially added on branch riastradh-drm2.

Fix undoing of -Wpointer-arith workaround.

branches: 1.1.2; 1.1.6; 1.1.32; 1.1.38;
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.

drm/vmwgfx: First draft. Passes make depend, doesn't build yet.

branches: 1.1.2; 1.1.6;
Stub <asm/intel-mid.h>.

linux asm/io.h: Side-load linux/vmalloc.h like Linux does.

drm: Delete mmiowb.

This no longer exists in Linux.

memset_io doesn't need to return anything.

Previous change to make argument volatile broke return, but we don't
need it anyway.

Allow memset_io &c. to take volatile.

memset_io works with bytes not dwords, noted by riastradh@

Don't use memset as memset_io on aarch64. With c=0 it uses the "dc zva"
cache maintenance instruction as an optimization which does not work on
device memory.

branches: 1.4.18; 1.4.24;
Linux's <asm/io.h> includes <linux/string.h>, so do so here.

branches: 1.3.2; 1.3.4; 1.3.6;
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 io.h was initially added on branch riastradh-drm2.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file ioctl.h was initially added on branch riastradh-drm2.

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>

Bunch more Linux header file stubs.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file mman.h was initially added on branch riastradh-drm2.

branches: 1.3.4;
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 mtrr.h was initially added on branch riastradh-drm2.

get_order

branches: 1.2.2; 1.2.6;
First whack at radeon driver.

No hardware to test yet, but it builds.

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: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file param.h was initially added on branch riastradh-drm2.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file pat.h was initially added on branch riastradh-drm2.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file pgalloc.h was initially added on branch riastradh-drm2.

Bunch more Linux header file stubs.

Use SPINLOCK_BACKOFF_HOOK, not DELAY(1), for busy waits.

Bogus clflushopt that just does clflush for now.

drm: sys/param.h, not machine/param.h, for DELAY.

branches: 1.3.36; 1.3.38;
Fix header guard name.

branches: 1.2.4; 1.2.6; 1.2.8; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file processor.h was initially added on branch riastradh-drm2.

Bunch more Linux header file stubs.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file shmparam.h was initially added on branch riastradh-drm2.

i915: ggtt

Create stub headers for files included by drm code.


Author: Maya Rashish <maya@NetBSD.org>

linux asm/uaccess.h: strncpy_from_user

(which does not actually have strncpy semantics, naturally, from what
I can gather)

drm: Another pass over i915 and some supporting logic.

This makes a shim around sg_table, which essentially represents two
things:

1. an array of pages (roughly corresponding to bus_dma_segment_t[])
2. an array of DMA addresses stored in a bus_dmamap_t

Both parts are optional; different parts of i915 use sg_tables to
pass around one or both of the two parts. This helps to reduce the
ifdefs by quite a bit, although it's not always clear which part of
an sg_table any particular interface is actually using which is why I
was reluctant to do this before.

Update to new access_ok prototype

also... this function should probably do something


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

linux/compiler.h for #define __user


Author: Maya Rashish <maya@NetBSD.org>

Use ufetch(9) instead of removed subyte.


Author: Maya Rashish <maya@NetBSD.org>

Safe unsafe uaccess stubs.

Implement hokey slow clear_user.

Tweak get_user and put_user.

- Add type check to get_user.
- Use temporary for put_user, since argument might not be lvalue.
- Clarify argument names.

sys/errno.h for EFAULT

ok riastradh

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file uaccess.h was initially added on branch riastradh-drm2.

Don't return void.

Caught by pcc. Thanks, pcc!

Add get_unaligned_le16, put_unaligned_le16.

Add put_unaligned_le32 to Linux <asm/unaligned.h>.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8;
First whack at radeon driver.

No hardware to test yet, but it builds.

linux asm/vmware.h: Fill this in with hypercall asm.

Not sure if it's necessary to support vmcall or vmmcall -- if so,
need to deal with binary patching inline asm, ugh.

drm/vmwgfx: First draft. Passes make depend, doesn't build yet.

Bunch more Linux header file stubs.

drm: Teach bus_dma_hacks.h about alpha.

Not sure if this is correct! Someone who knows alpha should vet.

drm: Fix index confusion and rename variables to clarify.

drm: Let's go one segment at a time, not two, shall we?

drm: Another pass over i915 and some supporting logic.

This makes a shim around sg_table, which essentially represents two
things:

1. an array of pages (roughly corresponding to bus_dma_segment_t[])
2. an array of DMA addresses stored in a bus_dmamap_t

Both parts are optional; different parts of i915 use sg_tables to
pass around one or both of the two parts. This helps to reduce the
ifdefs by quite a bit, although it's not always clear which part of
an sg_table any particular interface is actually using which is why I
was reluctant to do this before.

drm: Nix use of uvm pglist. Just use arrays of page pointers.

in bus_dmamap_load_pglist() try a 32-element array of
bus_dma_segment_t's before attempting to allocate.

this hopefully avoids hangs i've had in X since updating
from netbsd-8 to netbsd-9 that i've tracked down to this
function failing with ENOMEM.

XXX: maybe can avoid the alloc entirely by batching these
calls in 32 segments each.

XXX pullup-9

Fix PHYS_TO_BUS_MEM and BUS_MEM_TO_PHYS on arm and aarch64

branches: 1.18.2;
Arm DMA tags with _nranges=0 require no address translation. Handle this
in PHYS_TO_BUS_MEM and BUS_TO_PHYS_MEM instead of panicing.

branches: 1.17.4;
Check for DMA-safe addresses before allowing DRM prime import.

Implement BUS_DMA_TO_PHYS/PHYS_TO_BUS_DMA on arm respecting ranges.

At chuq's suggestion, use paddr_t rather than struct vm_page *.

Doesn't make much of a substantive difference.

sparc seems to treat bus/phys addrs in bus dmamem the same.

This is just about bus dmamem -- not about bus dmamap, which rightly
uses an iommu to remap things and which we don't interfere with.

Eliminate now-unused bus_dmamap_load_pgarray.

Rework drm prime guts.

- Our faux struct sg_table is now just an array of _pages_, not of
bus dma segments.

- We handle bus dma segments only in the presence of an adult bus dma
tag.

- All bus dma hacks are once again confined to bus_dma_hacks.h, and
more neatly organized:
. bus_dmamem_export_pages translates bus dma segs to vm_page array
. bus_dmamem_import_pages translates vm_page array to bus dma segs

Use PHYS_TO_BUS_MEM in generic bus_dmamap_load_pglist code.

For arm and x86, this is a noop. For powerpc, it is defined by some
relevant header file.

Kill bus_dmamem_wire_uvm_object, which never made sense!

branches: 1.9.2;
Add initial support for ARMv8 (AARCH64) (by nisimura@ and ryo@)

- sys/arch/evbarm64 is gone and integrated into sys/arch/evbarm. (by skrll@)
- add support fdt. evbarm/conf/GENERIC64 fdt (bcm2837,sunxi,tegra) based generic 64bit kernel config. (by skrll@, jmcneill@)

branches: 1.8.16;
use VM_FREELIST_DEFAULT on arm

branches: 1.7.4; 1.7.6;
Avoid needless #ifdef __i386__ with judicious use of MIN.

Free temporary segs on the way out of bus_dmamap_load_pglist.

First whack at radeon driver.

No hardware to test yet, but it builds.

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: 1.3.2; 1.3.4; 1.3.6;
Miscellaneous fixes for drm2 on i386.

Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file bus_dma_hacks.h was initially added on branch riastradh-drm2.

Delete drmP.h. Good riddance!

Empty out drm_os_netbsd.h.

Give some more declarations a new home.

Move drm_io_mapping_* to its own header file.

Move files which are gone upstream out of dist/.

Rework PCI and AGP conditionalization.

- Push drm_pci_set_unique into driver callback.
- Eliminate drm_pci_set_unique_hook.
- Gather all drm_agp_* functions into struct drm_agp_hooks.
- Replace the nonsensical old atomic garbage by serious locking.
- Make drm_agpsupport.c its own module.
- Eliminate NDRMKMS_PCI.
- Use NAGP from "agp.h" only in drm_module.c for horrible hack.
=> See comment in file for rationale.
- Always define CONFIG_PCI=1 and CONFIG_AGP=1.
- Always go through the drm_agp_* function hooks.
- Ifdef out nouveau agp stuff that doesn't go through drm_agp_*
for reasons that I'm too frustrated to figure out tonight.
- pci_iomap no longer automagically does agp_i810_borrow.
=> Use drm_agp_borrow instead.

Upstream nixed __OS_HAS_AGP; use CONFIG_AGP instead.

branches: 1.6.16; 1.6.18;
dont pull in agp.h when building as a module

only define __OS_HAS_AGP if x86 and NAGP > 0

branches: 1.4.2;
Another round of nouveau whack-a-mole.

branches: 1.3.2; 1.3.4;
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 drm_agp_netbsd.h was initially added on branch riastradh-drm2.

Reduce diffs by nixing DRM_SUSER macro, deleted upstream long ago.

Instead stub Linux capable(CAP_SYS_ADMIN).

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.36; 1.2.42;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file drm_auth_netbsd.h was initially added on branch riastradh-drm2.

drm: Work around client modeset mutex for entering ddb.

Linux introduced a wait lock (`mutex') around access to the drm
client modesets, even for drm_fb_helper_debug_enter/leave -- which
happen when we're crashing and can't wait for the scheduler to let
whatever thread might hold a mutex continue to run.

This really shouldn't be a wait lock, but disentangling the lock
order and sleeping allocations is difficult, so let's just hope that
it's safe to access unlocked in ddb for now.

Start drm_client.h stubs.

Remove unused definitions.

(These appear to have existed in old-drm)

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.36;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file drm_copy_netbsd.h was initially added on branch riastradh-drm2.

Create stub headers for files included by drm code.


Author: Maya Rashish <maya@NetBSD.org>

Make this const.

(Why did I rewrite drm_encoder_slave.h?)

Tweak includes and forward decls.

branches: 1.1.2; 1.1.4; 1.1.20;
Rewrite drm_encoder_slave.c, as nouveau will need.

Add a missing ';'

drm: Rewrite drm_gem_cma_helper.h from scratch.

The header file was originally part of drm with no licence text,
which I took to mean BSD-licensed like the rest of the Linux drm code
base is by default -- everything in Linux under include/drm and
drivers/gpu/drm not otherwise marked.

In 2017, a tree-wide automated change was applied to Linux which
caused an SPDX GPL header to appear in drm_gem_cma_helper.h. When I
asked the drm developers about this in drm files, they explained that
it was an automated process and many of the SPDX headers were wrong,
so when excluding GPL files in drm updates, I heeded the actual GPL
vs BSD/MIT licence text and revision history rather than the SPDX
headers.

I excluded drm_gem_cma_helper.c because it was clearly originally GPL
as an exception to the default BSD licence under Linux's
drivers/gpu/drm, and Jared reimplemented the API for ues by some
(NetBSD, BSD-licensed) Arm display drivers.

During an update after that, the header file was lost in the merge
shuffle and I copied it back in without noticing the SPDX header
file. In retrospect, I see now that it's not clear what the intent
was: the .c file was obviously GPL, and maybe the .h file was
supposed to be too but it wasn't carved out as an exception among the
drm code.

To keep our story simpler, I just drafted a new .h file that provides
a compatible subset of the interface we use, derived from the .c file
Jared wrote, written according to several deterministic rules based
on KNF that yield a non-creative specification of the compatible
interface:

1. $NetBSD$ RCS id
2. standard TNF copyright statement
3. header guard derived from #include file name
4. minimal #includes, grouped and sorted according to KNF
5. forward declaration of structs, sorted lexicographically
6. definitions of structs, members sorted lexicographically by name
7. downcasting macros, written in KNF and sorted lexicographically
8. minimal extern variable declarations, sorted lexicographically
9. minimal, function prototypes, written in KNF and sorted
lexicographically

`Minimal' means added one by one, according to the errors issued by
the compiler (and in the case of #includes, according to the correct
header file for the missing types or function prototypes being used),
until the compiler is formally satisfied.

Any changes to this will, unless otherwise marked, be covered by the
standard TNF licence now on the file.

Fix up includes of <sys/vmem.h>.

Move files which are gone upstream out of dist/.

branches: 1.1.2; 1.1.6;
Move old DRM_READn definitions into new drm_iomap_netbsd.h

These got deleted from drmP.h.

drm: New IRQ_WAKE_THREAD constant.

Not really wired up to anything but helps reduce diffs -- driver is
responsible for making decisions based on it, corresponding to
Linux's built-in `threaded irq'.

drm: Set IPL_DRM to IPL_VM, not IPL_TTY.

We might want some of this stuff to work at higher IPL when dealing
with ddb during crashes, but...everything else in drm uses IPL_VM,
including Linux spin locks, which means we've been failing to block
interrupts during spin locks for the entire time this code has
existed...which is a little embarrassing.

provide enum irqreturn

merge in old ifdefs
ifdef out code that I'm unsure about right away and turn into panic
call.


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

branches: 1.4.16; 1.4.18;
due to hangs seen by several folks, for now revert:
http://mail-index.netbsd.org/source-changes/2014/11/04/msg060120.html

Log Message:
This code should be MP-safe. Use IPL_SCHED in place of IPL_DRM/IPL_VM and set
D_MPSAFE flag in cdevsw.

branches: 1.3.2;
This code should be MP-safe. Use IPL_SCHED in place of IPL_DRM/IPL_VM and set
D_MPSAFE flag in cdevsw.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file drm_irq_netbsd.h was initially added on branch riastradh-drm2.

Fix typo: list lessees, not list leases.

Declare drm_lease_destroy.

Unfinished local implementation of GPL drm_lease.c.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file drm_mem_util.h was initially added on branch riastradh-drm2.

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: another whack at it

branches: 1.1.2; 1.1.6;
Add stub headers to be filled in as needed.

branches: 1.1.2;
file drm_os_linux.h was initially added on branch riastradh-drm2.

drm_os_netbsd.h is no more

Empty out drm_os_netbsd.h.

Fix up includes of <sys/vmem.h>.

nbsd-namespace, and provide CONFIG_LOCKDEP (disabled)


Author: Maya Rashish <maya@NetBSD.org>

Reduce diffs by nixing DRM_SUSER macro, deleted upstream long ago.

Instead stub Linux capable(CAP_SYS_ADMIN).

Disable the use of WC memory on Arm and Arm64. From Linux:

* The DRM driver stack is designed to work with cache coherent devices
* only, but permits an optimization to be enabled in some cases, where
* for some buffers, both the CPU and the GPU use uncached mappings,
* removing the need for DMA snooping and allocation in the CPU caches.
*
* The use of uncached GPU mappings relies on the correct implementation
* of the PCIe NoSnoop TLP attribute by the platform, otherwise the GPU
* will use cached mappings nonetheless. On x86 platforms, this does not
* seem to matter, as uncached CPU mappings will snoop the caches in any
* case. However, on ARM and arm64, enabling this optimization on a
* platform where NoSnoop is ignored results in loss of coherency, which
* breaks correct operation of the device. Since we have no way of
* detecting whether NoSnoop works or not, just disable this
* optimization entirely for ARM and arm64.

branches: 1.15.2;
Add support for DRM GEM/CMA helpers using a driver provided vmem arena.

branches: 1.14.4;
Remove unused definitions.

(These appear to have existed in old-drm)

Rework PCI and AGP conditionalization.

- Push drm_pci_set_unique into driver callback.
- Eliminate drm_pci_set_unique_hook.
- Gather all drm_agp_* functions into struct drm_agp_hooks.
- Replace the nonsensical old atomic garbage by serious locking.
- Make drm_agpsupport.c its own module.
- Eliminate NDRMKMS_PCI.
- Use NAGP from "agp.h" only in drm_module.c for horrible hack.
=> See comment in file for rationale.
- Always define CONFIG_PCI=1 and CONFIG_AGP=1.
- Always go through the drm_agp_* function hooks.
- Ifdef out nouveau agp stuff that doesn't go through drm_agp_*
for reasons that I'm too frustrated to figure out tonight.
- pci_iomap no longer automagically does agp_i810_borrow.
=> Use drm_agp_borrow instead.

Ifdef out pnpbios for now. Presumably needs to use bus_space_alloc.

opt_mtrr.h is x86-only.

Guard #include "pci.h" with _KERNEL_OPT.

Define CONFIG_MTRR and CONFIG_X86_PAT.

Include the legacy DRM_READ/WRITE in drm_legacy.h, not drm_os_*.h.

Define CONFIG_PCI to 1, not empty.

provide CONFIG_PNP if it's defined. i386 only apparently.

XXX I'm not actually building i386 kernels


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

bring in changes from OLDER drmP.h to go forward with compilation


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

Move old DRM_READn definitions into new drm_iomap_netbsd.h

These got deleted from drmP.h.

branches: 1.3.4; 1.3.28; 1.3.30;
Move CONFIG_X86 from files.i915drmkms to drm_os_netbsd.h.

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

branches: 1.1.2;
file drm_os_netbsd.h was initially added on branch riastradh-drm2.

branches: 1.2.4; 1.2.20;
prettify and add to all the modules that have it.

Add __link_set based code to automatically convert the linux module parameters
into sysctls.

Update drm_sysfs stubs.

drm: Mark variable as used only by trace point.

branches: 1.1.2; 1.1.6;
Forgot to commit drm_trace_netbsd.h. Too late to force an update...

drm: Add drm_vma_offset_exact_lookup_locked.

provide DRM_FILE_PAGE_OFFSET_{START,SIZE}


Author: Maya Rashish <maya@NetBSD.org>

Side-load linux/mm.h from the same headers as linux


Author: Maya Rashish <maya@NetBSD.org>

Linux wants a `readonly' member in struct drm_vma_offset_node.

Constify some prototypes for great constance.

drm_vma_manager deals in struct drm_file, not struct file, now.

Kinda inconvenient because it means we'll need to patch
filp->private_data with filp->f_data in various places...

branches: 1.1.2; 1.1.6;
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.

drm: Fix comments about wait return values.

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

This faux timeout means `wait forever'.

hardclock_ticks -> getticks()

DRM_HZ -> HZ, to reduce diffs.

branches: 1.15.6;
fix various problems i've seen where cv_*wait*() return ERESTART,
which is -3 in netbsd, which we have mapped linux ERESTARTSYS to.

this has a problem because linux code often returns errors and
pointers in the same value, and pointer values between -4095 and
-1 are considered as error returns, but -3 ends up as 3 and thus
is not considered an error, and mayhem ensues.

with this in place my kabylake system seems actually stable, i
have not triggered any of my prior issues in almost 4 weeks now.


Taylor asked me to write up a description and then wrote most of
the text below for me :-)


In Linux code, we always work with ERESTARTSYS so the code meaning
start over is a positive NetBSD errno safe for PTR_ERR/ERR_PTR.
To achieve this:
1. adapt all cv_waits that return to Linux so they map ERESTART to
ERESTARTSYS, and
2. adapt all returns to userland so they convert ERESTARTSYS to
ERESTART.
Leave EINTR and all other error codes alone.

branches: 1.14.10; 1.14.18;
We now use cpu_intr_p() all the time.

Don't break when hardclock_ticks wraps around.

Since we now only count time spent in wait, rather than determining
the end time and checking whether we've passed it, timeouts might be
marginally longer in effect. Unlikely to be an issue.

In DRM_SPIN_WAIT_ON, don't stop after waiting only one tick.

Continue the loop to recheck the condition and count the whole
duration.

Actually poll every tick as advertised.

Remove extraneous blank line.

New macro DRM_SPIN_WAIT_ON better reflects DRM_WAIT_ON.

We still need to adapt all waits from upstream to use an interlock,
so we can't implement DRM_WAIT_ON verbatim, but this more closely
reflects the API of DRM_WAIT_ON than DRM_*WAIT*_UNTIL do.

Major difference is that this polls every tick, like DRM_WAIT_ON,
unlike DRM_*WAIT*_UNTIL. So it will mask missing wakeups, but it
wouldn't surprise me if there were such things upstream.

Elaborate on essay about DRM_*WAIT*_UNTIL reutrn convention.

Write an essay to remind myself about (timed) wait return values.

Another attempt to fix the drm timed wait blarf blugh blahhh.

branches: 1.5.2;
Return 0, not uninitialized, if the condition is already true.

branches: 1.4.2; 1.4.4;
First whack at radeon driver.

No hardware to test yet, but it builds.

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 drm_wait_netbsd.h was initially added on branch riastradh-drm2.

drm_writeback stubs

stub drm_writeback_set_fb


Author: Maya Rashish <maya@NetBSD.org>

provide a stub drm_writeback_prepare_job, knf


Author: Maya Rashish <maya@NetBSD.org>

Remove GPL header for which we have our own code

stub drm_writeback_cleanup_job


Author: Maya Rashish <maya@NetBSD.org>

More drm_writeback stubs.

Disable GPL drm_writeback.c, minimal stub for drm_writeback.h.

amdgpu: Another pass through.

amdgpu_object.c
amdgpu_pci.c
amdgpu_pm.c
amdgpu_polaris10_smumgr.c
amdgpu_pp_psm.c
amdgpu_ppatomctrl.c
amdgpu_ppatomfwctrl.c
amdgpu_process_pptables_v1_0.o
amdgpu_psp.o
amdgpu_psp_v10_0.c
amdgpu_psp_v11_0.c
amdgpu_psp_v12_0.c
amdgpu_psp_v3_1.c
amdgpu_ras.c
amdgpu_ras_eeprom.c
amdgpu_rc_calc.c
amdgpu_rc_calc_dpi.c
amdgpu_ring.c
amdgpu_rlc.c
amdgpu_rn_clk_mgr.c
amdgpu_sdma_v3_0.c
amdgpu_sdma_v4_0.c
amdgpu_sdma_v5_0.c
amdgpu_si.c
amdgpu_si_dma.c
amdgpu_si_dpm.c
amdgpu_smu.c
amdgpu_smu10_hwmgr.c
amdgpu_smu7_hwmgr.c
amdgpu_smu8_hwmgr.c
amdgpu_smu8_smumgr.c
amdgpu_smu_v11_0.c (and a sprinkling of consts)
amdgpu_smu_v11_0_i2c.c
amdgpu_soc15.c
amdgpu_tonga_smumgr.c
amdgpu_ttm.c
amdgpu_ucode.c
amdgpu_uvd.c
amdgpu_uvd_v5_0.c
amdgpu_uvd_v6_0.c
amdgpu_uvd_v7_0.c
amdgpu_vce.c
amdgpu_vce_v2_0.c
amdgpu_vce_v4_0.c
amdgpu_vcn_v1_0.c
amdgpu_vcn_v2_0.c
amdgpu_vcn_v2_5.c
amdgpu_vega10_hwmgr.c
amdgpu_vega10_powertune.c
amdgpu_vega10_processpptables.c
amdgpu_vega10_reg_init.c
amdgpu_vega12_hwmgr.c
amdgpu_vega20_hwmgr.c
amdgpu_vega20_ppt.c
amdgpu_vega20_reg_init.c
amdgpu_vi.c
amdgpu_virt.c
amdgpu_vram_mgr.c
amdgpu_xgmi.c -- disable (for now?)
amdgpufb.c

branches: 1.2.14;
add da_fb_linebytes to drmfb_attach_args and use it to pass linebytes
from nouveau code to drmfb. keep the same linebytes logic for i915.

nvidia hardware needs 256 byte alignment, so aligning to just 64 was
not enough.

fixes broken console with a width of 1440px (PR kern/51181)
ok riastradh

branches: 1.1.2; 1.1.4; 1.1.6;
Factor generic parts of intelfb out into a drmfb.

Adapting radeondrmkmsfb should not be hard.

This will make nouveaufb easier too.

branches: 1.2.2; 1.2.4; 1.2.20;
Factor out intelfb_is_vga_console to drmfb_pci.

Factor generic parts of intelfb out into a drmfb.

Adapting radeondrmkmsfb should not be hard.

This will make nouveaufb easier too.

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_mei_hdcp_interface.h from openbsd


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

i915: Make intel_gtt_get prototype match Linux.

i915: ggtt

Update intel gtt API.

TODO: Find where the stolen memory base is in agp_i810.

Linux uses uint64 for these parameters now, so follow suit.

Call it intel_gtt_insert_sg_entries for expedience.

It uses a bus_dmamap, not a Linux scatterlist a.k.a. sg, but
otherwise it functions the same way and this avoids patching
upstream.

branches: 1.5.16; 1.5.18;
Pass cache-related flags through to the GTT on pre-SNB devices.

I had assumed for ages this would increase the amount of caching and
thereby increase the chance of stale caches leading to rendering
glitches. But apparently I was wrong, and failing to pass these
through was causing all sorts of problems!

branches: 1.4.2; 1.4.4; 1.4.6;
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.

Explain the fields of struct intel_gtt for future reference.

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

branches: 1.1.2;
file intel-gtt.h was initially added on branch riastradh-drm2.

Move drm_io_mapping_* to its own header file.

Reimplement task barrier without semaphores.

match linux side-loading


Author: Maya Rashish <maya@NetBSD.org>

Rework ttm tt swapin/swapout logic.

Rather than handling `swapping in/out' here, per se, we let uvm do
that, we interpret `swap out' as `deactivate pages', and we add
generic ttm operations to wire and unwire pages, for the ttm_tt
driver to use.

This fixes certain graphics buffer eviction logic, which enables
nouveau to suspend/resume on one of my machines. (The machine
doesn't resume overall for other reasons, but the nouveau device
suspends and resumes in isolation.)

XXX pullup to netbsd-7 after a couple weeks

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.12;
First whack at radeon driver.

No hardware to test yet, but it builds.

drm: Set CONFIG_ACPI in linux/acpi.h and make it build.

Leave a little ACPI-related functionality disabled for now, like
getting EDID out of ACPI -- needs a bit more work to make this work,
and I don't have hardware to work on that.

Should help with failures of the forms:

- unable to locate a BIOS ROM
- bios: unable to locate usable image

on various machines.

branches: 1.10.4;
Let radeon DRM driver build on ports that lack ACPI

linux: Define acpi_size as alias for ACPI_SIZE.

drm: Omit needless conditionals around #include "acpica.h".

drm: Move acpi_check_dsm &c. from intel_acpi.c to new linux_acpi.c.

i915: another whack at it

Pull in acpica.h on aarch64

branches: 1.4.18; 1.4.24;
only include acpivar.h when NACPICA > 0

branches: 1.3.2;
i915drmkms(4): Enable CONFIG_ACPI if NACPICA > 0.
Now brightness can be adjusted via hotkey on Mouse Computer LB-J300X (Clevo W330SU2).

branches: 1.2.4; 1.2.6; 1.2.8; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file acpi.h was initially added on branch riastradh-drm2.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file acpi_io.h was initially added on branch riastradh-drm2.

Make <linux/agp_backend.h> yield the AGP APIish.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file agp_backend.h was initially added on branch riastradh-drm2.

More Linux header stubs.

Let's just use empty header files until we actually populate these.
Save a bit of disk space...

linux: stub async_synchronize_cookie

branches: 1.4.2; 1.4.6;
Implement <linux/async.h> synchronously.

provide pr_notice
avoid needing unregister_oom_notifier
use intel_register_dsm_handler(dev), as older drm does
provide dummy async_schedule
provide atomic_or
match side-loading


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

include guard for async.h


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

local versions of headers required


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

amdgpu: Another pass through.

amdgpu_object.c
amdgpu_pci.c
amdgpu_pm.c
amdgpu_polaris10_smumgr.c
amdgpu_pp_psm.c
amdgpu_ppatomctrl.c
amdgpu_ppatomfwctrl.c
amdgpu_process_pptables_v1_0.o
amdgpu_psp.o
amdgpu_psp_v10_0.c
amdgpu_psp_v11_0.c
amdgpu_psp_v12_0.c
amdgpu_psp_v3_1.c
amdgpu_ras.c
amdgpu_ras_eeprom.c
amdgpu_rc_calc.c
amdgpu_rc_calc_dpi.c
amdgpu_ring.c
amdgpu_rlc.c
amdgpu_rn_clk_mgr.c
amdgpu_sdma_v3_0.c
amdgpu_sdma_v4_0.c
amdgpu_sdma_v5_0.c
amdgpu_si.c
amdgpu_si_dma.c
amdgpu_si_dpm.c
amdgpu_smu.c
amdgpu_smu10_hwmgr.c
amdgpu_smu7_hwmgr.c
amdgpu_smu8_hwmgr.c
amdgpu_smu8_smumgr.c
amdgpu_smu_v11_0.c (and a sprinkling of consts)
amdgpu_smu_v11_0_i2c.c
amdgpu_soc15.c
amdgpu_tonga_smumgr.c
amdgpu_ttm.c
amdgpu_ucode.c
amdgpu_uvd.c
amdgpu_uvd_v5_0.c
amdgpu_uvd_v6_0.c
amdgpu_uvd_v7_0.c
amdgpu_vce.c
amdgpu_vce_v2_0.c
amdgpu_vce_v4_0.c
amdgpu_vcn_v1_0.c
amdgpu_vcn_v2_0.c
amdgpu_vcn_v2_5.c
amdgpu_vega10_hwmgr.c
amdgpu_vega10_powertune.c
amdgpu_vega10_processpptables.c
amdgpu_vega10_reg_init.c
amdgpu_vega12_hwmgr.c
amdgpu_vega20_hwmgr.c
amdgpu_vega20_ppt.c
amdgpu_vega20_reg_init.c
amdgpu_vi.c
amdgpu_virt.c
amdgpu_vram_mgr.c
amdgpu_xgmi.c -- disable (for now?)
amdgpufb.c

i915: more work

i915: More progress.

linux: Just use __sync_* for xchg and cmpxchg.

Easier than figuring out the dance with __builtin_choose_expr to make
these work with all types they need to work with.

linux: Make xchg and cmpxchg work on pointers too.

drm/linux: atomic_fetch_add/inc

drm/linux: Add memset32, SZ_64K, atomic_sub_return.

cmpxchg

Move Linux atomic bitops from linux/atomic.h to linux/bitops.h.

Move smp_mb_before/after_atomic from linux/atomic.h to asm/barrier.h.

Linux clear_bit_unlock

atomic_set_release

atomic_long_xchg

Omit __insn_barrier where implied or subsumed by volatile.

atomic_dec_if_positive

Allow atomic_read of const.

Guarantee no repeated loads.

atomic_fetch_xor

atomic_andnot

Kludgey xchg.

Reduce diffs by side-loading some header files like Linux.

From riastradh

branches: 1.21.2;
Fix signed/unsigned comparison

Merge the [pgoyette-compat] branch

Implement atomic64_add_return and atomic64_inc_return.

Sort.

Fix argument types of atomic64_add/sub to be sensible.

Technically Linux does use long long rather than int64_t, but that's
silly.

Implement ATOMIC64_INIT.

Hash-locked atomic64 to give ports like powerpc32 a chance at radeon.

Add atomic_long.

Attempt to match Linux semantics for membars implied by atomics.

This is kind of moot at the moment because we're mostly x86-only for
drmkms, but this might help in the future if we ever went beyond x86.

Nix memory barriers that were nixed upstream. Add smp_mb__after_atomic.

Fix return types of test_and_{set,clear,change}_bit.

Add Linux smp_mb__before_atomic.

Implement atomic64_cmpxchg.

provide pr_notice
avoid needing unregister_oom_notifier
use intel_register_dsm_handler(dev), as older drm does
provide dummy async_schedule
provide atomic_or
match side-loading


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

branches: 1.7.4; 1.7.28; 1.7.30;
Correct return values of Linux test-and-set operations (PR 48999).

Linux's Documentation/atomic_ops.txt says in no uncertain terms these
must return 0 or 1, not zero or nonzero. I don't think this has
caused an issue for drm (yet), but better to have it right.

First whack at radeon driver.

No hardware to test yet, but it builds.

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.

Fix atomic_dec_and_test in <linux/atomic.h>: test 0, not -1.

branches: 1.3.2; 1.3.4; 1.3.6;
Fix volatile qualifiers in drm2 <linux/atomic.h>.

Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file atomic.h was initially added on branch riastradh-drm2.

Implement ewma API, exponentially weighted moving average.

Create stub headers for files included by drm code.


Author: Maya Rashish <maya@NetBSD.org>

Backlight enable/disable stubs.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file backlight.h was initially added on branch riastradh-drm2.

i915: another whack at it

Create stub headers for files included by drm code.


Author: Maya Rashish <maya@NetBSD.org>

amdgpu: Another pass through.

amdgpu_object.c
amdgpu_pci.c
amdgpu_pm.c
amdgpu_polaris10_smumgr.c
amdgpu_pp_psm.c
amdgpu_ppatomctrl.c
amdgpu_ppatomfwctrl.c
amdgpu_process_pptables_v1_0.o
amdgpu_psp.o
amdgpu_psp_v10_0.c
amdgpu_psp_v11_0.c
amdgpu_psp_v12_0.c
amdgpu_psp_v3_1.c
amdgpu_ras.c
amdgpu_ras_eeprom.c
amdgpu_rc_calc.c
amdgpu_rc_calc_dpi.c
amdgpu_ring.c
amdgpu_rlc.c
amdgpu_rn_clk_mgr.c
amdgpu_sdma_v3_0.c
amdgpu_sdma_v4_0.c
amdgpu_sdma_v5_0.c
amdgpu_si.c
amdgpu_si_dma.c
amdgpu_si_dpm.c
amdgpu_smu.c
amdgpu_smu10_hwmgr.c
amdgpu_smu7_hwmgr.c
amdgpu_smu8_hwmgr.c
amdgpu_smu8_smumgr.c
amdgpu_smu_v11_0.c (and a sprinkling of consts)
amdgpu_smu_v11_0_i2c.c
amdgpu_soc15.c
amdgpu_tonga_smumgr.c
amdgpu_ttm.c
amdgpu_ucode.c
amdgpu_uvd.c
amdgpu_uvd_v5_0.c
amdgpu_uvd_v6_0.c
amdgpu_uvd_v7_0.c
amdgpu_vce.c
amdgpu_vce_v2_0.c
amdgpu_vce_v4_0.c
amdgpu_vcn_v1_0.c
amdgpu_vcn_v2_0.c
amdgpu_vcn_v2_5.c
amdgpu_vega10_hwmgr.c
amdgpu_vega10_powertune.c
amdgpu_vega10_processpptables.c
amdgpu_vega10_reg_init.c
amdgpu_vega12_hwmgr.c
amdgpu_vega20_hwmgr.c
amdgpu_vega20_ppt.c
amdgpu_vega20_reg_init.c
amdgpu_vi.c
amdgpu_virt.c
amdgpu_vram_mgr.c
amdgpu_xgmi.c -- disable (for now?)
amdgpufb.c

drm: Another pass over i915 and some supporting logic.

This makes a shim around sg_table, which essentially represents two
things:

1. an array of pages (roughly corresponding to bus_dma_segment_t[])
2. an array of DMA addresses stored in a bus_dmamap_t

Both parts are optional; different parts of i915 use sg_tables to
pass around one or both of the two parts. This helps to reduce the
ifdefs by quite a bit, although it's not always clear which part of
an sg_table any particular interface is actually using which is why I
was reluctant to do this before.

drm/linux: Fix bitmap_zalloc size.

Provide bitmap_alloc


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

bitmap_complement

Split bitmap_set/clear into begin/middle/end sections.

For clarity and speed. Largely from uwe@ with tweaks from me.

Name the number of words in bitmap_zero too.

Be consistent about nbits >= bpl.

Name bpl in bitmap_and/or. Fix and clarify comments.

Try setting and clearing the bits we meant, not other bits.

Fix comments to match intent while we're fixing reality too.

Implement Linux bitmap utilities.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.34; 1.2.36;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file bitmap.h was initially added on branch riastradh-drm2.

move bitops.h so we can include it from kernel.h

match linux side-loading of this header.


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

Fix find_first_zero_bit to find the high bits of 64-bit words...oops.

XXX pullup

hweight32 should take uint32_t, not uint16_t. OOPS.

XXX pullup

branches: 1.11.10; 1.11.16; 1.11.18;
Fix comment in previous.

Fix indexing convention of Linux __ffs/__ffs64 shims.

They reject zero input, and yield zero-based indexing, unlike our
ffs/ffs64, which return zero for zero and yield one-based indexing.

May let nouveau make a little more progress toward booting!

Found by mrg@.

Add hweight8 (hamming weight of 8-bit quantity).

branches: 1.8.2;
Another round of nouveau whack-a-mole.

branches: 1.7.2; 1.7.4;
Add Linux __ffs64.

Correct return values of Linux test-and-set operations (PR 48999).

Linux's Documentation/atomic_ops.txt says in no uncertain terms these
must return 0 or 1, not zero or nonzero. I don't think this has
caused an issue for drm (yet), but better to have it right.

Add non-atomic Linux test-and-set operations.

First whack at radeon driver.

No hardware to test yet, but it builds.

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 bitops.h was initially added on branch riastradh-drm2.

Add a BIT_MASK in bits.h, move it to common so bitops.h can sideload

match linux.


Author: Maya Rashish <maya@NetBSD.org>

Create stub headers for files included by drm code.


Author: Maya Rashish <maya@NetBSD.org>

Move linux/bug.h and asm/bug.h to common.

branches: 1.3.4;
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 bug.h was initially added on branch riastradh-drm2.

linux: Move BUILD_BUG_* to common linux/build_bug.h.

Create stub headers for files included by drm code.


Author: Maya Rashish <maya@NetBSD.org>

More Linux header stubs.

Let's just use empty header files until we actually populate these.
Save a bit of disk space...

CAP_SYS_NICE

branches: 1.2.2; 1.2.6;
fix a typo, caught by -Werror,-Wheader-guard

Reduce diffs by nixing DRM_SUSER macro, deleted upstream long ago.

Instead stub Linux capable(CAP_SYS_ADMIN).

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file cdev.h was initially added on branch riastradh-drm2.

branches: 1.2.2; 1.2.6;
Populate circ_buf.h with CIRC_SPACE.

local versions of headers required


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

branches: 1.3.2; 1.3.6;
Stub out clk API if no FBT.

Our clk API already echoes Linux's, it seems.

Stub <linux/clk.h>.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file compat.h was initially added on branch riastradh-drm2.

Move <linux/compiler.h> to common.

Stub linux compiler.h, scatterlist.h, seqlock.h, sort.h.

Move <linux/completion.h> from drm2 to external/bsd/common.

Add some more Linux completion operations.

Adapted from a patch by nick@.

Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file completion.h was initially added on branch riastradh-drm2.

branches: 1.1.2; 1.1.6;
Add stub headers to be filled in as needed.

Stub out console_lock/unlock and drm_fb_helper_set_suspend.

Reduce some more diffs.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.36; 1.2.42;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file console.h was initially added on branch riastradh-drm2.

linux: Use sys/cpu.h, not machine/cpu.h.

Provide cpufreq.h


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

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file cpufreq.h was initially added on branch riastradh-drm2.

branches: 1.2.2; 1.2.6;
The lua 5.1 to 5.3 update added isprint to libkern.h

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: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file debugfs.h was initially added on branch riastradh-drm2.

Create stub headers for files included by drm code.


Author: Maya Rashish <maya@NetBSD.org>

match linux side-loading


Author: Maya Rashish <maya@NetBSD.org>

drm: sys/param.h, not machine/param.h, for DELAY.

branches: 1.6.10; 1.6.12;
Placate -Wsign-compare.

branches: 1.5.6;
Round nsec up for usec delay.

XXX pullup

branches: 1.4.10; 1.4.16; 1.4.18;
In msleep use mdelay if cold

branches: 1.3.2; 1.3.4; 1.3.6;
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 delay.h was initially added on branch riastradh-drm2.

drm: Reduce verbosity of drm kernel messages.

drm: Ifdef out devm_* stuff rather than stub it out.

Stub is not helpful, and this pollutes the symbol namespace.

drm: Downgrade warnings from aprint_error to aprint_normal.

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>

Alias dev_WARN=dev_warn.

Revert "Give up on finding how linux side-loads these"

Found it.

Add some sideloads.

Provide dev_warn_ratelimited


Author: Maya Rashish <maya@NetBSD.org>

stub devm_add_action


Author: Maya Rashish <maya@NetBSD.org>

provide get_device, XXX might want to revisit this later


Author: Maya Rashish <maya@NetBSD.org>

Empty dev_pm_set_driver_flags stub.

Paranoia: let dev be null, in match routines.

Add some more device print routines.

branches: 1.4.4; 1.4.28; 1.4.30;
First whack at radeon driver.

No hardware to test yet, but it builds.

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 device.h was initially added on branch riastradh-drm2.

amdgpu: amdgpu_dma_buf.c

drm: Another pass over i915 and some supporting logic.

This makes a shim around sg_table, which essentially represents two
things:

1. an array of pages (roughly corresponding to bus_dma_segment_t[])
2. an array of DMA addresses stored in a bus_dmamap_t

Both parts are optional; different parts of i915 use sg_tables to
pass around one or both of the two parts. This helps to reduce the
ifdefs by quite a bit, although it's not always clear which part of
an sg_table any particular interface is actually using which is why I
was reluctant to do this before.

Fix up drm_prime.c.

dma_buf_ops::map and unmap are no more.

Rename reservation_object -> dma_resv.

match linux side-loading


Author: Maya Rashish <maya@NetBSD.org>

Update type signatures for begin/end_cpu_access.

Update dma-buf API enough to compile drm_prime.c.

Implement poll for reservations and dma bufs.

Draft support for drm prime.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.34; 1.2.36;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file dma-buf.h was initially added on branch riastradh-drm2.

drm: Draft dma-fence-array.

amdgpu: amdgpu_dma_buf.c

<sys/stdbool.h> for bool

dma-fence-array.h stub declarations.

Start dma_fence_array.

Bunch more Linux header file stubs.

drm: Implement dma fence chains.

dma fence chain stubs

dma fence chain stubs

Create stub headers for files included by drm code.


Author: Maya Rashish <maya@NetBSD.org>

drm: Fix dma fence stub so it works with locking operations.

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

drm: Sprinkle assertions about fence lifetime.

amdgpu_fb.c
amdgpu_fence.c
amdgpu_gart.c
amdgpu_fixpt31_32.c
amdgpu_fiji_smumgr.c
amdgpu_gem.c
amdgpu_gfx_v10_0.c
amdgpu_gfx_v6_0.c through amdgpu_gfx_v9_0.c
amdgpu_gmc.c
amdgpu_gmc_v6_0.c through amdgpu_gmc_v10_0.c
amdgpu_gtt_mgr.c
some amdgpu_h* files
some amdgpu_i* files
some amdgpu_j* files
amdgpu_kms.c
some amdgpu_m* and amdgpu_n* files

i915: Defer destroying request lock and fence until page destruction.

Move grody i915 dma-fence hacks into dma-fence proper.

Teach dma_fence_any_wait_timeout to return index of signalled fence.

dma_fence_get_status

More side loads.

First approximation of dma_fence_get_stub.

Allow const volatile fence pointer pointers in dma_fence_get_rcu_safe.

Namespace for dma_fence_get_rcu_safe.

dma_fence_set_error

Linux wants to violate abstractions, so fine, let them.

Add dma_fence_get_rcu_safe.

Rename fence -> dma_fence, step 3 of 3: code.

Rename fence -> dma_fence, step 1: files.

amdgpu: Another pass through.

amdgpu_object.c
amdgpu_pci.c
amdgpu_pm.c
amdgpu_polaris10_smumgr.c
amdgpu_pp_psm.c
amdgpu_ppatomctrl.c
amdgpu_ppatomfwctrl.c
amdgpu_process_pptables_v1_0.o
amdgpu_psp.o
amdgpu_psp_v10_0.c
amdgpu_psp_v11_0.c
amdgpu_psp_v12_0.c
amdgpu_psp_v3_1.c
amdgpu_ras.c
amdgpu_ras_eeprom.c
amdgpu_rc_calc.c
amdgpu_rc_calc_dpi.c
amdgpu_ring.c
amdgpu_rlc.c
amdgpu_rn_clk_mgr.c
amdgpu_sdma_v3_0.c
amdgpu_sdma_v4_0.c
amdgpu_sdma_v5_0.c
amdgpu_si.c
amdgpu_si_dma.c
amdgpu_si_dpm.c
amdgpu_smu.c
amdgpu_smu10_hwmgr.c
amdgpu_smu7_hwmgr.c
amdgpu_smu8_hwmgr.c
amdgpu_smu8_smumgr.c
amdgpu_smu_v11_0.c (and a sprinkling of consts)
amdgpu_smu_v11_0_i2c.c
amdgpu_soc15.c
amdgpu_tonga_smumgr.c
amdgpu_ttm.c
amdgpu_ucode.c
amdgpu_uvd.c
amdgpu_uvd_v5_0.c
amdgpu_uvd_v6_0.c
amdgpu_uvd_v7_0.c
amdgpu_vce.c
amdgpu_vce_v2_0.c
amdgpu_vce_v4_0.c
amdgpu_vcn_v1_0.c
amdgpu_vcn_v2_0.c
amdgpu_vcn_v2_5.c
amdgpu_vega10_hwmgr.c
amdgpu_vega10_powertune.c
amdgpu_vega10_processpptables.c
amdgpu_vega10_reg_init.c
amdgpu_vega12_hwmgr.c
amdgpu_vega20_hwmgr.c
amdgpu_vega20_ppt.c
amdgpu_vega20_reg_init.c
amdgpu_vi.c
amdgpu_virt.c
amdgpu_vram_mgr.c
amdgpu_xgmi.c -- disable (for now?)
amdgpufb.c

drm: Another pass over i915 and some supporting logic.

This makes a shim around sg_table, which essentially represents two
things:

1. an array of pages (roughly corresponding to bus_dma_segment_t[])
2. an array of DMA addresses stored in a bus_dmamap_t

Both parts are optional; different parts of i915 use sg_tables to
pass around one or both of the two parts. This helps to reduce the
ifdefs by quite a bit, although it's not always clear which part of
an sg_table any particular interface is actually using which is why I
was reluctant to do this before.

Stub dma_addressing_limited, fixup references for caller

This might turn out to be a mistake if we actually need to distinguish
if a device is only capable of 32-bit DMA.


Author: Maya Rashish <maya@NetBSD.org>

Move dma_addr_t to linux/types.h.

Allow maximum number of bits in DMA_BIT_MASK.

Forget about trying to replicate side-loading, will just include
directly


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

begin fixing -Werror build:

Provide missing declarations from older drm
provide more definitions used by code
no idea what might_lock is, but it might be some error-checking
lockdep thing.


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

branches: 1.3.4; 1.3.28; 1.3.30;
Add Linux DMA_BIT_MASK.

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

branches: 1.1.2;
file dma-mapping.h was initially added on branch riastradh-drm2.

amdgpu: Another pass through.

amdgpu_object.c
amdgpu_pci.c
amdgpu_pm.c
amdgpu_polaris10_smumgr.c
amdgpu_pp_psm.c
amdgpu_ppatomctrl.c
amdgpu_ppatomfwctrl.c
amdgpu_process_pptables_v1_0.o
amdgpu_psp.o
amdgpu_psp_v10_0.c
amdgpu_psp_v11_0.c
amdgpu_psp_v12_0.c
amdgpu_psp_v3_1.c
amdgpu_ras.c
amdgpu_ras_eeprom.c
amdgpu_rc_calc.c
amdgpu_rc_calc_dpi.c
amdgpu_ring.c
amdgpu_rlc.c
amdgpu_rn_clk_mgr.c
amdgpu_sdma_v3_0.c
amdgpu_sdma_v4_0.c
amdgpu_sdma_v5_0.c
amdgpu_si.c
amdgpu_si_dma.c
amdgpu_si_dpm.c
amdgpu_smu.c
amdgpu_smu10_hwmgr.c
amdgpu_smu7_hwmgr.c
amdgpu_smu8_hwmgr.c
amdgpu_smu8_smumgr.c
amdgpu_smu_v11_0.c (and a sprinkling of consts)
amdgpu_smu_v11_0_i2c.c
amdgpu_soc15.c
amdgpu_tonga_smumgr.c
amdgpu_ttm.c
amdgpu_ucode.c
amdgpu_uvd.c
amdgpu_uvd_v5_0.c
amdgpu_uvd_v6_0.c
amdgpu_uvd_v7_0.c
amdgpu_vce.c
amdgpu_vce_v2_0.c
amdgpu_vce_v4_0.c
amdgpu_vcn_v1_0.c
amdgpu_vcn_v2_0.c
amdgpu_vcn_v2_5.c
amdgpu_vega10_hwmgr.c
amdgpu_vega10_powertune.c
amdgpu_vega10_processpptables.c
amdgpu_vega10_reg_init.c
amdgpu_vega12_hwmgr.c
amdgpu_vega20_hwmgr.c
amdgpu_vega20_ppt.c
amdgpu_vega20_reg_init.c
amdgpu_vi.c
amdgpu_virt.c
amdgpu_vram_mgr.c
amdgpu_xgmi.c -- disable (for now?)
amdgpufb.c

Implement dma_resv_locking_ctx more carefully.

Provide dma_resv_locking_ctx


Author: Maya Rashish <maya@NetBSD.org>

dma_resv_reserve_shared takes one more argument, num_fences

Fortunately it's ~always 1, and (XXX) I assume our implementation
assumes this, too. But assert it.


Author: Maya Rashish <maya@NetBSD.org>

Add slow path versions of to drm_resv_lock.

Rename reservation_object -> dma_resv.

handle us having a named union in struct ww_mutex


Author: Maya Rashish <maya@NetBSD.org>

Switch to upstream dma-resv.h, it's MIT


Author: Maya Rashish <maya@NetBSD.org>

stub xarray.h and dma-resv.h

Add some upstream side-loads and empty structs.


Author: Maya Rashish <maya@NetBSD.org>

Create stub headers for files included by drm code.


Author: Maya Rashish <maya@NetBSD.org>

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file dma_remapping.h was initially added on branch riastradh-drm2.

linux/dmapool.h: Start filling out stubs.

drm/vmwgfx: First draft. Passes make depend, doesn't build yet.

Need <sys/types.h> for bool.

Namespace Linux symbols.

provide some dummy structs

declaration without implementation of dmi_match (Won't link)
provide div64_u64_rem XXX the naming of the parameters is backwards
ci_send_msg_to_smc_return_parameter isn't unused, keep it


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

branches: 1.3.2; 1.3.4; 1.3.8; 1.3.32; 1.3.34;
Implement Linux dmi_check_system API.

Use it to get a Thinkpad quirk for i915 graphics.

Patch from nonoka@, PR 48708.

branches: 1.2.2;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file dmi.h was initially added on branch riastradh-drm2.

branches: 1.2.4; 1.2.6; 1.2.10;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file efi.h was initially added on branch riastradh-drm2.

Move linux/err.h into common/include.

OK riastradh@

branches: 1.3.2; 1.3.4; 1.3.6; 1.3.10;
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 err.h was initially added on branch riastradh-drm2.

Move <linux/errno.h> from drm2 to common.

branches: 1.2.2;
Merge riastradh-drm2 to HEAD.

branches: 1.1.2;
file errno.h was initially added on branch riastradh-drm2.

Include linux/export.h in linux/printk.h, move to common

linux does this through:
printk.h -> linkage.h -> export.h

this will require less patching of drm files.

Author: Maya Rashish <maya@NetBSD.org>

Move IS_REACHABLE to <linux/kernel.h> to avoid double definition.