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

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.

__LP64__ is what's defined, not _LP64_, according to the manual (and
also experience).

fix spelling error

Submitted by: trasz

Don't check for mapping above 4GB on 32-bit platforms.

Add some additional debugging for the memory code.

First cut at fixing memory mapping botch. Nobody must use the ray(4)
driver since it couldn't have worked with NEWCARD w/o these fixes.
This should allow selecting 16-bit memory width as well (which was
what was broken).

- Fix exca_(io|mem)_map() to return proper errno values.
- Change exca_activate_resource() to call BUS_ACTIVATE_RESOURCE() before
calling exca_(io|mem)_map() since the latter use rman_get_bus(tag|handle)
and the recent changes to nexus(4) mean that you need to activate a
resource before reading the bus tag and handle. This was true before,
but now the nexus(4) drivers on x86 and ia64 are more forceful about it.

Reviewed by: imp

exca->pccarddev should always be non-null now. Only call it when the
device is actually attached.

It turns out that it is easier to not NULL out pccard and cardbus
device pointers. They don't change as the children device drivers
come and go. Rather, check to see if the device is attached where we
would have checked ! NULL. This solves many asymmetries in the code
that likely could lead to crashes when loading/unloading cbb without
one or more of the expected children's driver not present.

Cleanup sloppy ifdef.

Don't dereference an uninitialized pointer.

Set the name of the chipset found

Minor commentary correction

MFP4: Minor tweaks.

'PC Card' instead of other variants

Properly calculate the offset in mapping the memory of pccards. This
allows my 3com cards to work again. It appears that this code was
once there, but I removed it when I added the alignment issues.

MFC After: 5 days
PR: 70639 (and likely others)

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

Didn't intend to commit debugging code enabled

Other part of the cbb isa/pci split. This likely is causing problems
wrt cbb module.

Card type stuff was backwards, so assume io for the moment. mem needs
a lot of help and with luck bms will help me fix that.

CARDMEM is the offset of the address ON THE CARD (eg which page).
Instead, use EXCA_MEMREG_WIN_SHIFT which is the amount we shift the
bus address by to write into upper memory (eg above 24MB). Use the
latter in this case.

When we went to the set_flags interface for the memory resource, we
switched from PCCARD_MEM_FOO to PCCARD_A_MEM_FOO, yet we didn't change
exca in all the right places. Do so now. Also use PCCARD_WIDTH_AUTO
rather than the magic cookie 0.

A number of minor fixes to the mapping of memory. This should help
reading the CIS on some cards. However, not all just yet. This makes
at least some of the xircom cards that weren't working to work. It
doesn't make my home and away card work, however.

o Don't get the card offset wrong. This is the biggest hassle for
reading the CIS. The old code was just so wrong I can't believe that
it worked at all.
o Don't set the bit that allows/forces 16-bit memory access to the
memory. It is hard coded with 0x80.
o Don't need to slow down memory access with wait-states. OLDCARD didn't
need them and it doesn't hurt anything.
o remove bogus grousying in comment.

Fix location of $FreeBSD$ from last commit.

Use __FBSDID().
Also some minor style cleanups.

MFP4:
Merge some common code from cbb into exca.

Don't use return(foo(...)); in function returning void.

Found by: FlexeLint

Massive overhaul of exca to help with the isa efforts:
o chip_name arrays ifdef'd out.
o use the OLDCARD-like get/put functions so we can support differnt types
of mappings.
o Write the beggings of is this a valid exca device and introduce more
chipset support.

# this is partially a wip, but also needed because some other cahnges I've
# made require some of these changes.

Update comments to remind me about power bugs in oldcard.

MFp4:
o Protect .h against multiple includes.
o eliminate the pointers to the read/write routines. The
bus_space_read routines can cope since we have the offset
field.
o Print a warning if the requested map address is > 16M and
your chipset doesn't support the extended ExCA registers.

Fix a couple of places where preprocessor concatination was misused and
something wound up grafted to a comma.

Make oldcard and newcard kernel module work.

Default debugging to OFF now.

First draft of common code between pccbb and pcic drivers for talking
to ExCA register sets. These registers exist in both ISA and PCI
devices in a couple different ways, and this will provide a common
base for future building. This code is a rehash of the pccbb 16-bit
code, which was a rehash of the pcic code, which was a rehash of the
netbsd i82365 code. More hashing to come.