Make the direct-map API always available, but fail if KASAN or rump.

(Only for architectures that support it at all; on others,
__HAVE_MM_MD_DIRECT_MAPPED_PHYS/IO are still undefined and the
functions unimplemented.)

This gives modules like zfs an opportunity to use it.

While here, fix the one caller of mm_md_direct_mapped_phys that
ignored the return value (and make sure to call pmap_kremove/update
before uvm_km_free).

branches: 1.2.16; 1.2.18;
Define rump_nativeabi_p() under arch, where one would logically expect
it to be defined.

branches: 1.1.4; 1.1.6; 1.1.10; 1.1.12;
Rototill a bit, and attempt to disguise it as non-gratuitous.

Add arch/generic and move non-x86 files from rumpkern/ there. Also,
move files from arch/i386 to arch/x86, and make both i386 and x86_64
use those.

This clarifies the situation with what is MD vs. MI code.

renames:
rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x
arch/i386/* => arch/x86/rump_x86_$x

(for those who forget, x86 requires MD code because rump kernels
use the same ABI as kernel modules)

branches: 1.2.16;
Put the kernelside rump kernel headers into <rump-sys> instead of
sprinkling them around the faction directories. Avoids having
to add a CPPFLAGS (or several) to pretty much every component
Makefile.

Leave compat headers around in the old locations.

The commit changes some autogenerated files, but I'll fix the
generators shortly and regen.

branches: 1.1.2;
Define rump_nativeabi_p() under arch, where one would logically expect
it to be defined.

Put the kernelside rump kernel headers into <rump-sys> instead of
sprinkling them around the faction directories. Avoids having
to add a CPPFLAGS (or several) to pretty much every component
Makefile.

Leave compat headers around in the old locations.

The commit changes some autogenerated files, but I'll fix the
generators shortly and regen.

Apparently not all ports define struct clockframe in cpu.h, so we cannot
provide our definition that way. Instead, generate the struct clockframe
passed to hardclock() in MD code.

branches: 1.1.4; 1.1.6; 1.1.10; 1.1.12;
Rototill a bit, and attempt to disguise it as non-gratuitous.

Add arch/generic and move non-x86 files from rumpkern/ there. Also,
move files from arch/i386 to arch/x86, and make both i386 and x86_64
use those.

This clarifies the situation with what is MD vs. MI code.

renames:
rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x
arch/i386/* => arch/x86/rump_x86_$x

(for those who forget, x86 requires MD code because rump kernels
use the same ABI as kernel modules)

branches: 1.3.4;
Merge the [pgoyette-compat] branch

Add missing RCSIDs.

branches: 1.1.2;
Make the direct-map API always available, but fail if KASAN or rump.

(Only for architectures that support it at all; on others,
__HAVE_MM_MD_DIRECT_MAPPED_PHYS/IO are still undefined and the
functions unimplemented.)

This gives modules like zfs an opportunity to use it.

While here, fix the one caller of mm_md_direct_mapped_phys that
ignored the return value (and make sure to call pmap_kremove/update
before uvm_km_free).

branches: 1.1.4; 1.1.6; 1.1.10;
Rototill a bit, and attempt to disguise it as non-gratuitous.

Add arch/generic and move non-x86 files from rumpkern/ there. Also,
move files from arch/i386 to arch/x86, and make both i386 and x86_64
use those.

This clarifies the situation with what is MD vs. MI code.

renames:
rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x
arch/i386/* => arch/x86/rump_x86_$x

(for those who forget, x86 requires MD code because rump kernels
use the same ABI as kernel modules)

rump: Define pmap_resident_count, pmap_wired_count conditionally.

These definitions will not be used by anything yet because on every
architecture except x86 as of yeterday, pmap_resident_count and
pmap_wired_count are defined as macros anyway. But if more struct
pmaps are made private these definitions will get used.

Add stubs for pmap_resident_count, pmap_wired_count.

Put the kernelside rump kernel headers into <rump-sys> instead of
sprinkling them around the faction directories. Avoids having
to add a CPPFLAGS (or several) to pretty much every component
Makefile.

Leave compat headers around in the old locations.

The commit changes some autogenerated files, but I'll fix the
generators shortly and regen.

Give the kernel/local pmaps actual storage.

That way friendly neighborhood macros won't go scribbling
in the wrong places.

Use RUMP_PMAP_KERNEL and RUMP_PMAP_LOCAL to denote
kernel and local client pmaps, respectively.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.12;
Minor comment massage, zero functionality massage.

Rototill a bit, and attempt to disguise it as non-gratuitous.

Add arch/generic and move non-x86 files from rumpkern/ there. Also,
move files from arch/i386 to arch/x86, and make both i386 and x86_64
use those.

This clarifies the situation with what is MD vs. MI code.

renames:
rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x
arch/i386/* => arch/x86/rump_x86_$x

(for those who forget, x86 requires MD code because rump kernels
use the same ABI as kernel modules)