CVS log for src/sys/uvm/uvm_physseg.c

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Pull up following revision(s) (requested by tnn in ticket #554):

	sys/uvm/uvm_physseg.c: revision 1.20
	sys/uvm/uvm_pglist.c: revision 1.91
	sys/uvm/uvm_pglist.c: revision 1.92
	sys/uvm/uvm_physseg.h: revision 1.9

uvm: change type of uvm_physseg.start_hint from u_int to u_long
Avoids assertion failure in uvm_pglistalloc_s_ps() with large paddrs.
PR kern/57683.

fix DEBUG build

uvm: change type of uvm_physseg.start_hint from u_int to u_long

Avoids assertion failure in uvm_pglistalloc_s_ps() with large paddrs.
PR kern/57683.

uvm_phys_to_vm_page() turns out to be a fairly central routine due to the
way that some of the pmaps work, so try to optimise it a little.

uvm(9): KASSERT(A && B) -> KASSERT(A); KASSERT(B)

Fix typo. Use PRIxPADDR rather than casting.

paddr_t can't be printed by "%lx" in some platforms.

fix the eg, i386 build.

actually show the start/end that failed start < end in uvm_page_physload().

Mostly merge changes from HEAD upto 20200411

Merge changes from current as of 20200406

uvm_physseg: cluster fields used during RB tree lookup for PHYS_TO_VM_PAGE().

- Rename VM_PGCOLOR_BUCKET() to VM_PGCOLOR().  I want to reuse "bucket" for
  something else soon and TBH it matches what this macro does better.

- Add inlines to set/get locator values in the unused lower bits of
  pg->phys_addr.  Begin by using it to cache the freelist index, because
  computing it is expensive and that shows up during profiling.  Discussed
  on tech-kern.

KNF

Break the global uvm_pageqlock into a per-page identity lock and a private
lock for use of the pagedaemon policy code.  Discussed on tech-kern.

PR kern/54209: NetBSD 8 large memory performance extremely low
PR kern/54210: NetBSD-8 processes presumably not exiting
PR kern/54727: writing a large file causes unreasonable system behaviour

Fix programming mistake: 'paddrp' is a pointer given as argument, setting
it to NULL in the called function does not set it to NULL in the caller.

Actually, the callers of these functions do not do anything with the
special error handling, so drop the unused checks and the NULL assignments
altogether.

Found by the lgtm bot.

CID-1427737: Pacify coverity using KASSERT

update from HEAD

Sync with HEAD

Sync with HEAD

Sync with HEAD

file uvm_physseg.c was added on branch tls-maxphys on 2017-12-03 11:39:22 +0000

__diagused police

Sync with HEAD

file uvm_physseg.c was added on branch nick-nhusb on 2017-02-05 13:41:01 +0000

Add missing spaces in split string literals.

Sync with HEAD.  (Note that most of these changes are simply $NetBSD$
tag issues.)

file uvm_physseg.c was added on branch pgoyette-localcount on 2017-01-07 08:56:53 +0000

Protect uvm_physseg_set_avail_{start,end} by UVM_PHYSSEG_LEGACY.
All the ports other than acorn26 do not use them any longer.
Ok cherry

Make uvm_physseg_set_avail_start(9) available unconditional to UVM_HOTPLUG

Provide a set_available_start method for the non UVM_HOTPLUG case.

Omitted assigning handle return value for the case:
(VM_PHYSSEG_STRAT == VM_PSTRAT_RANDOM)

Fix this.

convention about function names for predicate checking:
s/uvm_physseg_valid()/uvm_physseg_valid_p()/

per. matt@

This is a preview of the uvm_hotplug(9) api code.
This commit does not actually introduce the UVM_HOTPLUG option.
However it does provide developers a way to review, test and try out
the API.

To do this, please go to tests/sys/uvm/ and build and run the tests
there. The tests also have a set of basic load tests, to get a measure
of the performance penalties due to enabling the UVM_HOTPLUG option.

In order to build the tests you need to have at least done the
following in $SRC/

cd $SRC; $NBMAKE do-distrib-dirs includes
cd $SRC/lib/csu; $NBMAKE all install || exit
cd $SRC/external/gpl3/gcc/lib/libgcc/libgcc_s; $NBMAKE all install || exit
cd $SRC/external/gpl3/gcc/lib/libgcc/libgcc; $NBMAKE all install || exit
cd $SRC/lib/libc; $NBMAKE includes all install || exit
cd $SRC/lib/libpthread; $NBMAKE all install || exit
cd $SRC/lib/libm; $NBMAKE all install || exit
cd $SRC/external/gpl3/gcc/lib/libstdc++-v3/; $NBMAKE all install || exit

Once the development environment has these userspace libraries, one
can simple build using $NBMAKE and finally test the kernel API using

atf-run|atf-report