sys: make the kernel metadata pointer global

The way we got the kernel metadata pointer was by calling
preload_search_by_type with one of the following three: "elf kernel",
"elf32 kernel" and "elf64

sys: make the kernel metadata pointer global

The way we got the kernel metadata pointer was by calling
preload_search_by_type with one of the following three: "elf kernel",
"elf32 kernel" and "elf64 kernel". Which one(s) we used wasn't
consistent though. Sometimes we would only try "elf kernel", and other
times we would try one of the latter two if the first failed. However,
the loader only ever sets "elf kernel" as the kernel type.

Now, the kmdp is a global, preload_kmdp, and it's initialized using
preload_initkmdp in machdep.c (or machdep_boot.c on arm/64).
preload_initkmdp takes a single boolean argument that tells us whether
not finding the kmdp is fatal or not.

Reviewed by: imp, kib
Pull Request: https://github.com/freebsd/freebsd-src/pull/1394

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vt: Add vd_bitblt_argb

This blit an ARGB image on the dedicated vd.
This also adds vt_fb_bitblt_argb which will works for most of the vt backends

Differential Revision: https://reviews.freebsd.org/

vt: Add vd_bitblt_argb

This blit an ARGB image on the dedicated vd.
This also adds vt_fb_bitblt_argb which will works for most of the vt backends

Differential Revision: https://reviews.freebsd.org/D45929
Reviewed by: tsoome
Sponsored by: Beckhoff Automation GmbH & Co. KG

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sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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efifb: add a tunable to select the framebuffer cache attribute

Mapping the framebuffer with WC (Write Combined) memory type can, in
practice, cause some memory transactions to be rate-limited at a
f

efifb: add a tunable to select the framebuffer cache attribute

Mapping the framebuffer with WC (Write Combined) memory type can, in
practice, cause some memory transactions to be rate-limited at a
fraction of the fb write rate. WC allows one core to queue up many
globally visible write transactions, and in the process some unrelated
transactions may end up having to wait for all of the queued up PCI
writes to be flushed.

Add an hw.efifb.cache_attr tunable to allow mapping the framebuffer as
uncacheable instead. We should likely be taking a more careful approach
of checking the memory map to determine which cacheability attributes
are feasible, but the knob lets us use our historically functional
behavior while offering a convenient way to switch on a stock kernel.

The only valid values for hw.efifb.cache_attr at this time are "uc" and
"wc".

Original patch by Marc De La Gueronniere <mdelagueronniere@verisign.com>
along with previous testing.

Reviewed by: imp
MFC after: 1 week
Sponsored by: Verisign, Inc.
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D17884

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pmap_unmapdev/bios: Accept a pointer instead of a vm_offset_t.

This matches the return type of pmap_mapdev/bios.

Reviewed by: kib, markj
Sponsored by: DARPA
Differential Revision: https://reviews.f

pmap_unmapdev/bios: Accept a pointer instead of a vm_offset_t.

This matches the return type of pmap_mapdev/bios.

Reviewed by: kib, markj
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D36548

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fb: Add new FBTYPE_EFIFB

Currently the type isn't set in the fbtype struct so any userland
program that call the FBIOGTYPE ioctl will think it's a FBTYPE_SUN1BW
which is far from the truth.
No app t

fb: Add new FBTYPE_EFIFB

Currently the type isn't set in the fbtype struct so any userland
program that call the FBIOGTYPE ioctl will think it's a FBTYPE_SUN1BW
which is far from the truth.
No app that I found find checks the type but at least now it's correct.

Reviewed by: emaste, tsoome
MFC after: 2 weeks
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D33221

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vt: export RGB offsets with FBIO_GETRGBOFFS

Add a new ioctl to vt to make it possible to export RGB offsets
set by vt drivers. This is needed to fix colors on X and Mesa
on some machines, especially

vt: export RGB offsets with FBIO_GETRGBOFFS

Add a new ioctl to vt to make it possible to export RGB offsets
set by vt drivers. This is needed to fix colors on X and Mesa
on some machines, especially on modern PowerPC64 BE ones.

With the appropriate changes in SCFB, to use this ioctl to find
out the correct RGB offsets, this fixes wrong colors on Talos II
and Blackbird, when used with their built-in video cards.

Reviewed by: alfredo
Sponsored by: Instituto de Pesquisas Eldorado (eldorado.org.br)
Differential Revision: https://reviews.freebsd.org/D29000

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Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights

These ones were unambiguous cases where the Foundation was the only
listed copyright holder (in the associated license block).

S

Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights

These ones were unambiguous cases where the Foundation was the only
listed copyright holder (in the associated license block).

Sponsored by: The FreeBSD Foundation

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efifb,vbefb: implement vd_fini

This removes the pmap entry when switching away to e.g. drm fb.

Differential Revision: https://reviews.freebsd.org/D29020
MFC After: 1 month

efifb: vt_generate_cons_palette() takes max color, not mask

vt_generate_cons_palette() does take max values of RGB component colours, not
mask. Also we need to set info->fb_cmsize, or vt_fb_init() w

efifb: vt_generate_cons_palette() takes max color, not mask

vt_generate_cons_palette() does take max values of RGB component colours, not
mask. Also we need to set info->fb_cmsize, or vt_fb_init() will re-initialize
the info->fb_cmap.

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MFHead @348740

Sponsored by: The FreeBSD Foundation

vt efifb: add suspend/resume calls

Using the latest NVIDIA driver, upon resuming from suspend with X
running the display remained blank. Additionally OpenGL applications
that were running triggered

vt efifb: add suspend/resume calls

Using the latest NVIDIA driver, upon resuming from suspend with X
running the display remained blank. Additionally OpenGL applications
that were running triggered a number of error messages from the NVIDIA
driver.

This occurred because the vt efifb back-end did not signal the X server
to release the display before suspending (or to re-acquire it after
resuming). The NVIDIA driver includes code for smoothly shutting down
and re-initializing the GPU, which was not getting called.

Since the NVIDIA driver doesn't currently support framebuffer devices
and vt is forced to fall back to the efifb back-end, add vd_suspend and
vd_resume members to connect the suspend/resume path. This ensures the
X server is properly able to re-initialize the display.

PR: 237050
Submitted by: Erik Kurzinger <ekurzinger@nvidia.com>
Reviewed by: markj
MFC after: 2 weeks
Event: Waterloo Hackathon 2019

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Merge ^/head r338298 through r338391.

Speed up vt(4) by keeping a record of the most recently drawn character and
the foreground and background colours. In bitblt_text functions, compare
values to this cache and don't re-draw the charac

Speed up vt(4) by keeping a record of the most recently drawn character and
the foreground and background colours. In bitblt_text functions, compare
values to this cache and don't re-draw the characters if they haven't changed.
When invalidating the display, clear this cache in order to force characters
to be redrawn; also force full redraws between suspend/resume pairs since odd
artifacts can otherwise result.

When scrolling the display (which is where most time is spent within the vt
driver) this yields a significant performance improvement if most lines are
less than the width of the terminal, since this avoids re-drawing blanks on
top of blanks.

(Note that "re-drawing" here includes writing to the VGA text mode buffer; on
virtualized systems this can be extremely slow since it triggers a glyph
being rendered onto a 640x480 screen).

On a c5.4xlarge EC2 instance (with emulated text mode VGA) this cuts the time
spent in vt(4) during the kernel boot from 1200 ms to 700ms; on my laptop
(with a 3200x1800 display) the corresponding time is reduced from 970 ms down
to 155 ms.

Reviewed by: imp, cem
Approved by: re (gjb)
Relnotes: Significant speedup in vt(4) and the system boot generally.
Differential Revision: https://reviews.freebsd.org/D16723

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sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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sys: use our roundup2/rounddown2() macros when param.h is available.

rounddown2 tends to produce longer lines than the original code
and when the code has a high indentation level it was not really

sys: use our roundup2/rounddown2() macros when param.h is available.

rounddown2 tends to produce longer lines than the original code
and when the code has a high indentation level it was not really
advantageous to do the replacement.

This tries to strike a balance between readability using the macros
and flexibility of having the expressions, so not everything is
converted.

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Merge ^/head r295845 through r295901.

MFH

Sponsored by: The FreeBSD Foundation

As <machine/vm.h> is included from <vm/vm.h>, there is no need to
include it explicitly when <vm/vm.h> is already included.

Reviewed by: alc, kib
Differential Revision: https://reviews.freebsd.org/D

As <machine/vm.h> is included from <vm/vm.h>, there is no need to
include it explicitly when <vm/vm.h> is already included.

Reviewed by: alc, kib
Differential Revision: https://reviews.freebsd.org/D5380

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As <machine/pmap.h> is included from <vm/pmap.h>, there is no need to
include it explicitly when <vm/pmap.h> is already included.

Reviewed by: alc, kib
Differential Revision: https://reviews.freebsd

As <machine/pmap.h> is included from <vm/pmap.h>, there is no need to
include it explicitly when <vm/pmap.h> is already included.

Reviewed by: alc, kib
Differential Revision: https://reviews.freebsd.org/D5373

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Merge from head

Sponsored by: Gandi.net

Finish merging from head, messed up in previous attempt

Merge r286744-r287584 from head.