man9: Document M_NEVERFREED and VM_ALLOC_NOFREE

Reviewed by: alc, kib, markj
Differential Revision: https://reviews.freebsd.org/D46198

vm: Retire vm_page_alloc_freelist{,_domain}()

Once upon a time, I created vm_page_alloc_freelist{,_domain}() to
support faster allocation of pages that were mapped by the partial
direct map on 32-bi

vm: Retire vm_page_alloc_freelist{,_domain}()

Once upon a time, I created vm_page_alloc_freelist{,_domain}() to
support faster allocation of pages that were mapped by the partial
direct map on 32-bit MIPS. At the time, I expected that these
functions might find other uses too, but those other uses never
materialized. So, these functions have not been used for some time
now. Instead, people use the more general vm_page_alloc_contig().

Reviewed by: kib, markj
Differential Revision: https://reviews.freebsd.org/D46063

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Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

vm_page_alloc.9: Document VM_ALLOC_NORECLAIM

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

Rewrite the vm_page_alloc manual page

Document the new allocator variants and flesh out the description of
some details of the page allocator interface.

Reviewed by: kib, alc
Sponsored by: The Free

Rewrite the vm_page_alloc manual page

Document the new allocator variants and flesh out the description of
some details of the page allocator interface.

Reviewed by: kib, alc
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32035

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Merge ^/head r308491 through r308841.

Update to reflect the demise of PG_CACHED pages.

Reviewed by: kib, markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D8530

IFC @r269962

Submitted by: Anish Gupta (akgupt3@gmail.com)

Merge head from 7/28

Sync to HEAD@r269943.

use .Mt to mark up email addresses consistently (part6)

PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>

Merge head r233826 through r256722.

IFC @256277

Approved by: ken (mentor)

IFC @ r255692

Comment out IA32_MISC_ENABLE MSR access - this doesn't exist on AMD.
Need to sort out how arch-specific MSRs will be handled.

Merge from head

IFC @ r255209

The soft and hard busy mechanism rely on the vm object lock to work.
Unify the 2 concept into a real, minimal, sxlock where the shared
acquisition represent the soft busy and the exclusive acquisitio

The soft and hard busy mechanism rely on the vm object lock to work.
Unify the 2 concept into a real, minimal, sxlock where the shared
acquisition represent the soft busy and the exclusive acquisition
represent the hard busy.
The old VPO_WANTED mechanism becames the hard-path for this new lock
and it becomes per-page rather than per-object.
The vm_object lock becames an interlock for this functionality:
it can be held in both read or write mode.
However, if the vm_object lock is held in read mode while acquiring
or releasing the busy state, the thread owner cannot make any
assumption on the busy state unless it is also busying it.

Also:
- Add a new flag to directly shared busy pages while vm_page_alloc
and vm_page_grab are being executed. This will be very helpful
once these functions happen under a read object lock.
- Move the swapping sleep into its own per-object flag

The KPI is heavilly changed this is why the version is bumped.
It is very likely that some VM ports users will need to change
their own code.

Sponsored by: EMC / Isilon storage division
Discussed with: alc
Reviewed by: jeff, kib
Tested by: gavin, bapt (older version)
Tested by: pho, scottl

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MFC

IFC @ r234692

sys/amd64/include/cpufunc.h
sys/amd64/include/fpu.h
sys/amd64/amd64/fpu.c
sys/amd64/vmm/vmm.c

- Add API to allow vmm FPU state init/save/restore.

FP stuff discussed with: kib

update .Dd

alphabetically sort optional flags and add documentation for VM_ALLOC_NODUMP

Improve the comment and man page for vm_page_alloc(). Specifically,
document one of the optional flags; clarify which of the flags are
optional (and which are not), and remove mention of a restricti

Improve the comment and man page for vm_page_alloc(). Specifically,
document one of the optional flags; clarify which of the flags are
optional (and which are not), and remove mention of a restriction on
the reclamation of cached pages that no longer holds since version 7.

MFC after: 1 week

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IFH@204581

MFC r204416:
Update man page for vm_page_alloc(9).

Update man page for vm_page_alloc(9).

Based on the submission by: Giovanni Trematerra <giovanni.trematerra gmail com>
MFC after: 3 days