kernel: Remove numerous #include <sys/thread2.h>.

Most of them were added when we converted spl*() calls to
crit_enter()/crit_exit(), almost 14 years ago. We can now
remove a good chunk of them agai

kernel: Remove numerous #include <sys/thread2.h>.

Most of them were added when we converted spl*() calls to
crit_enter()/crit_exit(), almost 14 years ago. We can now
remove a good chunk of them again for where crit_*() are
no longer used.

I had to adjust some files that were relying on thread2.h
or headers that it includes coming in via other headers
that it was removed from.

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kernel/spinlock: Add a description to struct spinlock.

And add it to spin_init() and SPINLOCK_INITIALIZER().

Submitted-by: dclink (see <http://bugs.dragonflybsd.org/issues/2714>)
OK'd-by: dill

kernel/spinlock: Add a description to struct spinlock.

And add it to spin_init() and SPINLOCK_INITIALIZER().

Submitted-by: dclink (see <http://bugs.dragonflybsd.org/issues/2714>)
OK'd-by: dillon

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pci: Enable PCIe memory mapped configuration again

bd7ad9e91e71693907a00c74ab8dfc457cd655c9 should have fixed the
system hanging seen by y0netan1@

pci: Disable PCI express memory mapped access method by default

It seems to hang some systems during boot.

Reported-by: y0netan1@

pci: Print PCIe memory mapped accessing information a little bit earlier

pci: Support PCI Express Configuration Space memory-mapped access mechanism

Also remove the outdated type 2 Configuration Space access mechanism;
it should never been seen on platforms w/ AMD64 capa

pci: Support PCI Express Configuration Space memory-mapped access mechanism

Also remove the outdated type 2 Configuration Space access mechanism;
it should never been seen on platforms w/ AMD64 capable CPUs.

Obtained-from: FreeBSD

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Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

Expand the support for PCI-e memory mapped configuration space access.

This defaults to off and must be explicitly
enabled by setting the loader tunable hw.pci.mcfg=1.
- Add support for the Intel 91

Expand the support for PCI-e memory mapped configuration space access.

This defaults to off and must be explicitly
enabled by setting the loader tunable hw.pci.mcfg=1.
- Add support for the Intel 915GM chipsets by reading the BAR.
- Add parsing of the ACPI MCFG table to discover memory mapped configuration
access on modern machines.
- For config requests to busses not listed in ACPI's min/max valid buses,
fall back to using type #1 configuration access instead.
- Add a workaround for some K8 chipsets that do not expose all devices on
bus 0 via MCFG and fall back to type #1 for those devices instead.

Obtained-from: FreeBSD

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rename amd64 architecture to x86_64

The rest of the world seems to call amd64 x86_64. Bite the bullet and
rename all of the architecture files and references. This will
hopefully make pkgsrc build

rename amd64 architecture to x86_64

The rest of the world seems to call amd64 x86_64. Bite the bullet and
rename all of the architecture files and references. This will
hopefully make pkgsrc builds less painful.

Discussed-with: dillon@

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rename amd64 architecture to x86_64

The rest of the world seems to call amd64 x86_64. Bite the bullet and
rename all of the architecture files and references. This will
hopefully make pkgsrc build

rename amd64 architecture to x86_64

The rest of the world seems to call amd64 x86_64. Bite the bullet and
rename all of the architecture files and references. This will
hopefully make pkgsrc builds less painful.

Discussed-with: dillon@

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spinlocks - Rename API to spin_{try,un,}lock

* Rename the API to spin_trylock, spin_unlock and spin_lock instead of
spin_lock_wr, spin_unlock_wr and spin_trylock_wr now that we only have
exclusi

spinlocks - Rename API to spin_{try,un,}lock

* Rename the API to spin_trylock, spin_unlock and spin_lock instead of
spin_lock_wr, spin_unlock_wr and spin_trylock_wr now that we only have
exclusive spinlocks.

* 99% of this patch was generated by a semantic coccinelle patch

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kernel - pmap (i386) - Reduce kmem use for foreign pmap mapping

* We've been having problems running out of KVA on i386 systems due to
numerous reasons. KVA use by the kernel is just too tight.

kernel - pmap (i386) - Reduce kmem use for foreign pmap mapping

* We've been having problems running out of KVA on i386 systems due to
numerous reasons. KVA use by the kernel is just too tight.

* Reserve space for foreign pmap page table mappings on a cpu-by-cpu basis
instead of for SMP_MAXCPU. This reduces KVM use from 68MB to (ncpu*4MB).
Use the APT entry for cpu0 and use kmem_alloc_nofault() for the APs.

This frees up 52MB of KVA which doesn't sound like a lot but actually
is.

* Add an alignment argument to kmem_alloc_nofault() and vm_map_find().

* vm_map_findspace() already had an alignment argument, but adjust the
value passed to be at least PAGE_SIZE (this has no operational effect
but is more correct).

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