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freebsd-dev/sys
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Konstantin Belousov c890751da6 A follow-up to r288492. In fact, revert the mentioned commit for 
pre-VFPv3 processors, since they do require software support code to
handle denormals.  For VFPv3 and later, enable flush-to-zero if
hardware does not claim full denormals arithmetic support by VMVFR1_FZ
field in mvfr1 register.

The end result is that we do use correct fpu environment on Cortexes
with VFPv3, while ARM11 (e.g. rpi) is in non-compliant flush-to-zero
mode.  At least CPUs without complete hardware implementation of
IEEE 754 do not cause unhandled floating point exception on underflow,
as it was before r288492.

Noted by:	ian
Tested by:	gjb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-10-07 09:12:49 +00:00
..
amd64 Update Xen headers from 4.2 to 4.6 2015-10-06 11:29:44 +00:00
arm A follow-up to r288492. In fact, revert the mentioned commit for 2015-10-07 09:12:49 +00:00
arm64 When trying to execute from a misaligned address raise a SIGBUS with the 2015-10-04 21:16:45 +00:00
boot Use EFI page size constants instead of hardcoding 4096. 2015-09-29 15:49:53 +00:00
bsm
cam More aggressively fill WUT read pipeline. 2015-10-01 19:07:15 +00:00
cddl Restore original array_rd_sz semantics. 2015-10-03 11:05:58 +00:00
compat save some bytes by using more concise SDT_PROBE<n> instead of SDT_PROBE 2015-09-28 12:14:16 +00:00
conf Merge ^/head r288126 through r288196. 2015-09-24 21:48:04 +00:00
contrib On some interfaces, ipfilter drops UDP packets with zero checkum. 2015-10-06 03:41:11 +00:00
crypto
ddb Make kstack_pages a tunable on arm, x86, and powepc. On i386, the 2015-08-10 17:18:21 +00:00
dev Declare odata as a pointer type instead of a pointer to pointer. 2015-10-07 03:33:25 +00:00
fs Ensure that when a blockable open of fifo returns success, a valid 2015-09-20 21:18:33 +00:00
gdb
geom geom_dev: Use kenv 'dumpdev' in the same way as rc/etc.d/dumpon 2015-09-23 21:08:52 +00:00
gnu Fixing a memory leak on module unloading. 2015-09-11 22:43:35 +00:00
i386 Update Xen headers from 4.2 to 4.6 2015-10-06 11:29:44 +00:00
isa
kern Fix various edge cases related to system call tracing. 2015-10-06 19:29:05 +00:00
kgssapi
libkern Add the __aeabi_memclr8 symbol, clang 3.7 uses this. 2015-09-21 18:35:32 +00:00
mips Set correct argemdio addr, comment out arge1 as its not physically 2015-10-04 22:50:37 +00:00
modules Fix make depend in sys/modules/otus 2015-10-01 05:56:38 +00:00
net Fix a bug that caused reinitialization failure of MAC addresses on 2015-10-07 06:32:34 +00:00
net80211 net80211: reduce code duplication in the ieee80211_ioctl_setwmeparam() + fix comments. 2015-10-03 22:38:08 +00:00
netgraph Add support for PPP-Max-Payload PPPoE tag (RFC4638). 2015-09-11 09:15:27 +00:00
netinet Add a comment specifying how we implement rfc3042. 2015-10-06 07:46:19 +00:00
netinet6 Invoke lle_event for new entry iff it has lladdr set. 2015-10-04 19:10:27 +00:00
netipsec Take extra reference to security policy before calling crypto_dispatch(). 2015-09-30 08:16:33 +00:00
netnatm
netpfil Bump number of prefixes in O_IP_<SRC|DST> from 15 to 31 (max possible). 2015-10-03 05:42:25 +00:00
netsmb
nfs Wait up to 10 seconds for late-initializing network interfaces to arrive. 2015-09-26 13:55:55 +00:00
nfsclient
nfsserver
nlm
ofed Fix build broken by r287861. 2015-09-16 15:40:08 +00:00
opencrypto
pc98 Add missing ofw_machdep.h. Make x86 ofw_machdep.h work pc98 too. 2015-08-28 15:41:09 +00:00
powerpc Save the link register in savectx(). 2015-10-06 01:24:46 +00:00
rpc Increase group limit for kerberized NFSv4 2015-09-26 16:30:16 +00:00
security
sparc64 Add support for weak symbols to the kernel linkers. It means that 2015-09-20 01:27:59 +00:00
sys Move td_oncpu and td_lastcpu out of the "zero'd on fork" section of 2015-10-06 21:36:45 +00:00
teken Sync HPA and VPA implementations with CUP. 2015-08-24 07:49:27 +00:00
tools save some bytes by using more concise SDT_PROBE<n> instead of SDT_PROBE 2015-09-28 12:14:16 +00:00
ufs Do not consume extra reference. This is a bug in r287479. 2015-09-05 12:28:18 +00:00
vm Exploit r288122 to address a cosmetic issue. Pages belonging to either 2015-10-06 05:49:00 +00:00
x86 dmar_ctx_dtr() does not exist since r284869. Remove the static function 2015-09-22 16:50:59 +00:00
xdr
xen Update Xen headers from 4.2 to 4.6 2015-10-06 11:29:44 +00:00
Makefile