Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Remove slightly used const values that can be replaced with nitems().

Suggested by: jhb

Add locking to the adw(4) driver and mark it MPSAFE.
- Use device_printf() and device_get_nameunit() instead of adw_name().
- Remove use of explicit bus space handles and tags.
- Use pci_enable_busmaster() rather than frobbing the PCI command register
directly.
- Use the softc provided by new-bus rather than allocating a new one.

Tested by: no one

Remove bus_{mem,p}io.h and related code for a micro-optimization on i386
and amd64. The optimization is a trivial on recent machines.

Reviewed by: -arch (imp, marcel, dfr)

Check for BIOS version 3.0 as well as 3.1.

Submitted by: Coverity Prevent analysis tool

Start each of the license/copyright comments with /*-, minor shuffle of lines

Use __FBSDID().
Also some minor style cleanups.

Remove unneeded #include <machine/clock.h>

Newbusify adv driver.

Reviewed by: imp

adv_pci.c:
adw_pci.c:
Update comments describing supported chips/cards.

adwcam.c:
adwlib.c:
adwlib.h:
Handle more error return codes from the firmware.

Break out the bus reset code into its own function.

Usa a constant for the bus reset hold delay.

Fix an interrupt race problem in adw_idle_cmd_send by
incorporating the poll loop for command completion.

Approved by: jkh@FreeBSDorg

Add support for the AdvanSys ASC38C0800 Ultra2 chipset. Preliminary
support is also included for the ASC38C1600 Ultra160 chipset, but
as firmware is not yet available for this chip, it is disabled.

Approved by: jkh@FreeBSD.org

Move the declaration of panic() from sys/systm.h to sys/param.h.
Rationale: Wider access, so we can add assertions to header files.
panicstr is still in sys/systm.h

Suggested by: phk
Discussed with: peter

$Id$ -> $FreeBSD$

Unspammed includes in <machine/cpufunc.h> in the !SMP case. Partially
unspammed them in the SMP case.

Add support for the ASC3550 AdvanSys SCSI Host Controller (aka 940UW).