broadwell mrc is retained, because it's needed on 820 g2

it's no longer needed on haswell, because nri is stable. nri
is short for "native ram initialisation", and libreboot provides
this for: thinkpad t440p, thinkpad w541, dell optiplex 9020 mt,
and dell optiplex 9020 sff

remove, in line with libreboot's binary blob reduction policy

previous revisions, prior to the recent release, stated that
it would be retained for compatibility, but it's really not
right to retain it, because doing so violates libreboot's policy

the recent release excluded mrc-based rom images for haswell
machines, providing only those rom images that use the libre
raminit, while retaining support for mrc in the build system, so
that users could still run the lbmk inject script on older release
roms that use mrc

again: libreboot's binary blob reduction policy is very clear:

https://libreboot.org/news/policy.html

it is a policy that can be summarised, thus:

if a blob can be avoided, it must be avoided.

therefore, we will avoid the Haswell MRC raminit blob

Signed-off-by: Leah Rowe <leah@libreboot.org>

the release variable is all we need, turning a target on
or off for a given release.

the status checks were prone to bugs, and unnecessary; it
also broke certain benchmark scripts.

it's better to keep the lbmk logic simpler. board status
will be moved to the documentation instead.

Signed-off-by: Leah Rowe <leah@libreboot.org>

NRI is libre raminit

MRC is binary blob raminit

the libre raminit is stable enough now that it's default

the MRC-based targets will be removed in a future release

Signed-off-by: Leah Rowe <leah@libreboot.org>

i initially decided to say unstable, but the default
configuration is reliable; the only caveat is that if
you enable IOMMU, you must only be using intel graphics.

this is already documented in warn.txt files, and on
the website, so it's more than ok to call this stable.

i use one of these myself as my daily driver and it's
rock solid. i haven't had any problems with it. i also
sell these to people with libreboot. no problems.

mark it as stable, ready for a full release.

Signed-off-by: Leah Rowe <leah@libreboot.org>

Signed-off-by: Leah Rowe <leah@libreboot.org>

export LBMK_VERSION_TYPE=x
x can be: stable, unstable

in target.cfg files, specify:
status=x
x can be: stable, unstable, broken, untested
if unset, lbmk defaults to "unknown"

if LBMK_VERSION_TYPE is set, no confirmation is asked
if the given target matches what's set (but what's set
in that environmental variable can only be stable or
unstable)

if LBMK_RELEASE="y", no confirmation is asked, unless
the target is something other than stable/unstable

"unstable" means it works, but has a few non-breaking
bugs, e.g. broken s3 on dell e6400

whereas, if raminit regularly fails or it is so absolutely
unreliable as to be unusable, then the board should be
declared "broken"

untested means: it has not been tested

With this change, it should now be easier to track whether
a given board is tested, in preparation for releases. When
working on trees/boards, status can be set for targets.

Also: in the board directory, you can add a "warn.txt" file
which will display a message. For example, if a board has a
particular quirk to watch out for, write that there. The message
will be printed during the build process, to stdout.

If status is anything *other* than stable, or it is unstable
but LBMK_VERSION_TYPE is not set to "unstable", and not building
a release, a confirmation is passed.

If the board is not specified as stable or unstable, during
a release build, the build is skipped and the ROM is not
provided in that release; this is in *addition* to
release="n" or release="y" that can be set in target.cfg,
which will skip the release build for that target if "n"

Signed-off-by: Leah Rowe <leah@libreboot.org>

i added mkukri's patch but didn't enable it. this was intentional.

this patch enables tpm by default, on all 9020 sff/mt targets.

most users probably won't need it, but enabling it won't hurt.

Signed-off-by: Leah Rowe <leah@libreboot.org>

Signed-off-by: Leah Rowe <leah@libreboot.org>

release="n" is set in target.cfg on haswell build targets
that use mrc.bin

script/update/release exports LBMK_RELEASE="y"

script/build/roms skips building a given target if release="n"
in target.cfg *and* LBMK_RELEASE="y"

you could also do the export yourself before running ./build roms,
for example:

export LBMK_RELEASE="y"
./build roms all

This would skip these ROM images. The native haswell raminit is
now stable enough in my testing, that I wish to delete the MRC-based
targets. This is in line with Libreboot's Binary Blob Reduction Policy,
which states: if a blob can be avoided, it should be avoided.

The problem is that users often run the inject script in *lbmk* from
Git, instead of from the src release archive. I forsee some users
running this on modern lbmk with older release images. If the mrc-based
target isn't there, the user may use an NRI-based target name, and
think it works; they will insert without MRC. I foresaw this ages
ago, which is why Caleb and I ensured that the script checks hashes,
and hashes are included in releases.

Therefore: for the time being, keep the MRC-based configs in lbmk
but do not include images for them in releases. This can be done
indefinitely, but I'll probably remove those configs entirely at
some point.

On the following boards, Libreboot now will *only* provide NRI-based
ROM images for the following machines:

* Dell OptiPlex 9020 SFF
* Dell OptiPlex 9020 MT
* Lenovo ThinkPad T440p
* Lenovo ThinkPad W541/W540

I now recommend exclusive use of NRI-based images, on Haswell
hardware. It's stable enough in my testing, and now supports S3.

Signed-off-by: Leah Rowe <leah@libreboot.org>

broadwell mrc has better peg handling and can support 16gb
modules on broadwell machines - the blob can be used on haswell
machines too, instead of haswell mrc, and it might support 16gb
modules on these machines (not yet tested, but using broadwell
mrc does at least boot as reliably as haswell mrc anyway)

one little quirk with haswell mrc is that it actually handles
vga decode, disabling the igpu entirely, when a dgpu is used.
the broadwell mrc enables both GPUs and does not handle vga
decoding, so we must handle this the usual way; my patch for
this was merged upstream and i'm also adding it to libreboot,
which currently uses an older coreboot revision. this is needed
for dgpu to work. see patch:

0040-nb-haswell-Disable-iGPU-when-dGPU-is-used.patch

broadwell mrc may also make dealing with nvidia optimus setups
more reliable, on laptops that have nvidia GPUs, but this patch
does not add bmrc configs for t440p/w541

NOTE: on t440p/w541 laptops with nvidia graphics, the video output
is wired to intel but rendering can be offloaded to nvidia. in this
setup, we want vga decode to be done on intel, so i've set these
configs to enable CONFIG_ONBOARD_VGA_IS_PRIMARY (set it to y)

Signed-off-by: Leah Rowe <leah@libreboot.org>