Remove support for CPU_ARM10. No kernel configs could possibly use this as
it's not an available option. Along with this we will never support this
cpu type as very few arm10 chips were made.

New pmap code for armv6. Disabled by default, option ARM_NEW_PMAP enables it.

This is pretty much a complete rewrite based on the existing i386 code. The
patches have been circulating for a couple

New pmap code for armv6. Disabled by default, option ARM_NEW_PMAP enables it.

This is pretty much a complete rewrite based on the existing i386 code. The
patches have been circulating for a couple years and have been looked at by
plenty of people, but I'm not putting anybody on the hook as having reviewed
this in any formal sense except myself.

After this has gotten wider testing from the user community, ARM_NEW_PMAP
will become the default and various dregs of the old pmap code will be
removed.

Submitted by: Svatopluk Kraus <onwahe@gmail.com>,
Michal Meloun <meloun@miracle.cz>

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Merge from head@274682

Sync to HEAD@r272516.

IFC @r271694

Rename pmap_kenter_temp to pmap_kenter_temporary to be consistent with the
other architectures with this function.

Submitted by: Svatopluk Kraus <onwahe at gmail.com>
Submitted by: Michal Meloun <me

Rename pmap_kenter_temp to pmap_kenter_temporary to be consistent with the
other architectures with this function.

Submitted by: Svatopluk Kraus <onwahe at gmail.com>
Submitted by: Michal Meloun <meloun at miracle.cz>

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MFC @ r266724

An SVM update will follow this.

Merge head

IFC @264767

Merge head up to r263906.

Move an else case that was missed in r263676

Reorder the pmap macros so "ARM_MMU_V6 + ARM_MMU_V7" is first. As they are
identical this allows us to build for both v6 and v7 together.

Remove all traces of support for ARM chips prior to the arm9 series. We
never actually ran on these chips (other than using SA1 support in an
emulator to do the early porting to FreeBSD long long ag

Remove all traces of support for ARM chips prior to the arm9 series. We
never actually ran on these chips (other than using SA1 support in an
emulator to do the early porting to FreeBSD long long ago). The clutter
and complexity of some of this code keeps getting in the way of other
maintenance, so it's time to go.

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MFH: tracking commit

Sponsored by: The FreeBSD Foundation

Merge head up to r262222 (last merge was incomplete).

Always clear L1 PTE descriptor when removing superpage on ARM

Invalidate L1 PTE regardles of existance of the corresponding
l2_bucket. This is relevant when superpage is entered via
pmap_enter_objec

Always clear L1 PTE descriptor when removing superpage on ARM

Invalidate L1 PTE regardles of existance of the corresponding
l2_bucket. This is relevant when superpage is entered via
pmap_enter_object() and will fix crash on entering page
in place of not properly removed superpage.

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Remove the ARM_USE_SMALL_ALLOC option and code related to it.

This was an optimization used only by a few xscale platforms. Part of
the optimization was to create a direct map for all physical page

Remove the ARM_USE_SMALL_ALLOC option and code related to it.

This was an optimization used only by a few xscale platforms. Part of
the optimization was to create a direct map for all physical pages, and
that resulted in making multiple mappings of pages in a way that bypassed
the logic in pmap.c to handle VIVT cache aliasing. It also just generally
made the code more complex and hard to maintain for all SoCs.

Reviewed by: cognet

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MFC @ r259205 in preparation for some SVM updates. (for real this time)

Merge head r232040 through r258006.

Make PTE_DEVICE a synonym for PTE_NOCACHE on armv4, to make it easier to
share the same code on both architectures.

Move remaining code and data related to static device mapping into the
new devmap.[ch] files. Emphasize the MD nature of these things by using
the prefix arm_devmap_ on the function and type names (

Move remaining code and data related to static device mapping into the
new devmap.[ch] files. Emphasize the MD nature of these things by using
the prefix arm_devmap_ on the function and type names (already a few of
these things found their way into MI code, hopefully it will be harder to
do by accident in the future).

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Begin reducing code duplication in arm pmap.c and pmap-v6.c by factoring
out common code related to mapping device memory into a new devmap.c file.

Remove the growing duplication of code that used p

Begin reducing code duplication in arm pmap.c and pmap-v6.c by factoring
out common code related to mapping device memory into a new devmap.c file.

Remove the growing duplication of code that used pmap_devmap_find_pa() and
then did some math with the returned results to generate a virtual address,
and likewise in reverse to get a physical address. Now there are a pair
of functions, arm_devmap_vtop() and arm_devmap_ptov(), to do that. The
bus_space_map() implementations are rewritten in terms of these.

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Merge head r232040 through r257457.
M usr.sbin/portsnap/portsnap/portsnap.8
M usr.sbin/portsnap/portsnap/portsnap.sh
M usr.sbin/tcpdump/tcpdump/Makefile

Fix condition that determines PMAP_NEEDS_PTE_SYNC value for ARM

Use values of the correct defines to determine statement's result.
ARM_ARCH_ symbols are always defined, hence only values are relevan

Fix condition that determines PMAP_NEEDS_PTE_SYNC value for ARM

Use values of the correct defines to determine statement's result.
ARM_ARCH_ symbols are always defined, hence only values are relevant.

Reviewed by: cognet

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Retire arm_remap_nocache() and the data and constants associated with it.

The only remaining user was the code that allocates bounce pages for armv4
busdma. It's not clear why bounce pages would ne

Retire arm_remap_nocache() and the data and constants associated with it.

The only remaining user was the code that allocates bounce pages for armv4
busdma. It's not clear why bounce pages would need uncached memory, but
if that ever changes, kmem_alloc_attr() would be the way to get it.

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