freebsd-dev/sys/x86
Konstantin Belousov edc8222303 Make kstack_pages a tunable on arm, x86, and powepc. On i386, the
initial thread stack is not adjusted by the tunable, the stack is
allocated too early to get access to the kernel environment. See
TD0_KSTACK_PAGES for the thread0 stack sizing on i386.

The tunable was tested on x86 only.  From the visual inspection, it
seems that it might work on arm and powerpc.  The arm
USPACE_SVC_STACK_TOP and powerpc USPACE macros seems to be already
incorrect for the threads with non-default kstack size.  I only
changed the macros to use variable instead of constant, since I cannot
test.

On arm64, mips and sparc64, some static data structures are sized by
KSTACK_PAGES, so the tunable is disabled.

Sponsored by:	The FreeBSD Foundation
MFC after:	2 week
2015-08-10 17:18:21 +00:00
..
acpica Merge ACPICA 20150619. 2015-06-18 23:14:45 +00:00
bios Add missing header needed by free(9). 2012-09-30 15:42:20 +00:00
cpufreq Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
include Fix more style issues. 2015-08-05 17:21:42 +00:00
iommu Typo in comment. 2015-07-20 19:51:41 +00:00
isa Set the initial system time to a sane (as in: not end of 21st century) value when 2015-06-29 17:02:09 +00:00
pci Reassign copyright statements on several files from Advanced 2015-04-23 14:22:20 +00:00
x86 Formally pair store_rel(&smp_started) with load_acq(&smp_started). 2015-08-06 18:02:54 +00:00
xen Make kstack_pages a tunable on arm, x86, and powepc. On i386, the 2015-08-10 17:18:21 +00:00