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8 commits

Author SHA1 Message Date
Konstantin Belousov
4d22d07a07 Add support for usermode (vdso-like) gettimeofday(2) and 
clock_gettime(2) on ARMv7 and ARMv8 systems which have architectural
generic timer hardware. It is similar how the RDTSC timer is used in
userspace on x86.

Fix a permission problem where generic timer access from EL0 (or
userspace on v7) was not properly initialized on APs.

For ARMv7, mark the stack non-executable. The shared page is added for
all arms (including ARMv8 64bit), and the signal trampoline code is
moved to the page.

Reviewed by:	andrew
Discussed with:	emaste, mmel
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D4209
 2015-12-07 12:20:26 +00:00
Andrew Turner
ac4dad9e2f Add support for moving the DMAP range. This is needed as some AMD SoCs 
place physical memory at an address outside the old DMAP range. This is an
issue as we rely on being able to move from PA -> VA using this range.

Obtained from:	Patrick Wildt <patrick@bitrig.org> (earlier version)
Sponsored by:	ABT Systems Ltd
Differential Revision:	https://reviews.freebsd.org/D3885
 2015-11-24 11:01:43 +00:00
Andrew Turner
36baf858c9 Add support for uma_small_alloc and uma_small_free, and make use of these. 
This is copied from the amd64 version with minor changes. These should be
merged into a single file as from a quick look there are other copies of
the same file in other parts of the tree.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
 2015-07-31 14:17:26 +00:00
Andrew Turner
71d72ea14f Add VIRT_IN_DMAP to check if a virtual address is from the DMAP range. 
Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
 2015-07-31 13:32:25 +00:00
Zbigniew Bodek
d5dfc8ad00 Increase DMAP (Direct Map) size on ARM64 
Previous DMAP size was too small for systems with more than 64GB
of RAM. Increase it to 128GB to support ThunderX CRB.

Reviewed by:   andrew
Obtained from: Semihalf
Sponsored by:  The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3113
 2015-07-17 13:58:00 +00:00
Alan Cox
966272ca33 Retire VM_FREEPOOL_CACHE as the next step in eliminating PG_CACHE pages. 
Differential Revision:	https://reviews.freebsd.org/D2712
Reviewed by:	kib
Sponsored by:	EMC / Isilon Storage Division
 2015-06-08 04:59:32 +00:00
Ed Maste
f72c920c5f Renumber clauses to avoid missing 3 2015-03-23 16:04:04 +00:00
Andrew Turner
412042e2ae Add the start of the arm64 machine headers. This is the subset needed to 
start getting userland libraries building.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
 2015-03-23 11:54:56 +00:00