Commit Graph

103910 Commits

Author SHA1 Message Date
Adrian Chadd
bfca9c9400 Turn ieee80211_start_scan_locked() into a swscan module private method.
It turns out that ieee80211_start_scan_locked() is only ever called by
the swscan code and it won't likely be required by firmware scanning
implementations.

So, don't bother keeping it in ieee80211_scan.c and it likely won't
become an API call.

Tested:

* Intel 5100, STA mode
* AR5416, STA mode
2015-05-10 06:59:34 +00:00
Adrian Chadd
3265af355a Attempt to address Bug - don't advertise what the AP announced
to us. Instead, advertise what we can do based on what the AP says and what
we're capped at by the VAP settings.

For non-STA modes we still advertise what our VAP settings are.

It may be that I've over-complicated this and instead of capping things
we can just always announce what we're capable of.  But this should at least
stop the blatantly wrong handling of A-MPDU parameters.

(I'll happily simplify things if someone can dig up a replacement, better
compliant behaviour.)

PR:		kern/176201
2015-05-10 06:57:53 +00:00
Justin Hibbits
45bf6d59de Fix a couple bugs in 64-bit powerpc fasttrap argument retrieval.
Found by code inspection.
2015-05-10 04:33:01 +00:00
Luiz Otavio O Souza
1b53f6c5a3 Remove unnecessary code and make use of generic implementations for
bus_alloc_resource(), bus_release_resource() and bus_set_resource()
(bus_generic_rl_alloc_resource(), bus_generic_rl_release_resource() and
bus_generic_rl_set_resource() respectively).

Do not print the resources for nomatch devices.

Use the inherited method for bus_get_resource_list() on ofw_iicbus.c.

Submitted by:	jhb and Michal Meloun (D2033)
2015-05-10 02:19:27 +00:00
Konstantin Belousov
b40a715c11 Correct the assertion. We should compare the pmap' curcpu pcid value
against 0, not the pmap.

Noted by:	Oliver Pinter <oliver.pinter@hardenedbsd.org>
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
2015-05-09 21:36:44 +00:00
Andrew Turner
532248e092 Pass over the at91 kernels to reduce the diff between them. 2015-05-09 21:24:55 +00:00
Glen Barber
88feae84be Merge ^/projects/release-arm-redux into ^/head.
Of note:

- This commit adds native FreeBSD/arm release build support without
  requiring out-of-tree utilities.

- Part of this merge removes the WANDBOARD-{SOLO,DUAL,QUAD} kernel
  configuration files, for which the IMX6 kernel configuration file
  should be used instead.

- The resulting images have a 'freebsd' user (password 'freebsd'),
  to allow ssh(1) access when console access is not available (VGA
  or serial).  The default 'root' user password is set to 'root'.

- The /etc/ttys file for arm images now enable both ttyv0 and ttyu0
  by default.

Help from:	many (boot testing, feedback, etc.)
Sponsored by:	The FreeBSD Foundation
2015-05-09 21:08:12 +00:00
Konstantin Belousov
44ec2b63c5 The vmem callback to reclaim kmem arena address space on low or
fragmented conditions currently just wakes up the pagedaemon.  The
kmem arena is significantly smaller then the total available physical
memory, which means that there are loads where kmem arena space could
be exhausted, while there is a lot of pages available still.  The
woken up pagedaemon sees vm_pages_needed != 0, verifies the condition
vm_paging_needed() which is false, clears the pass and returns back to
sleep, not calling neither uma_reclaim() nor lowmem handler.

To handle low kmem arena conditions, create additional pagedaemon
thread which calls uma_reclaim() directly.  The thread sleeps on the
dedicated channel and kmem_reclaim() wakes the thread in addition to
the pagedaemon.

Reported and tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-05-09 20:08:36 +00:00
Konstantin Belousov
a546448b8d Rewrite amd64 PCID implementation to follow an algorithm described in
the Vahalia' "Unix Internals" section 15.12 "Other TLB Consistency
Algorithms".  The same algorithm is already utilized by the MIPS pmap
to handle ASIDs.

The PCID for the address space is now allocated per-cpu during context
switch to the thread using pmap, when no PCID on the cpu was ever
allocated, or the current PCID is invalidated.  If the PCID is reused,
bit 63 of %cr3 can be set to avoid TLB flush.

Each cpu has PCID' algorithm generation count, which is saved in the
pmap pcpu block when pcpu PCID is allocated.  On invalidation, the
pmap generation count is zeroed, which signals the context switch code
that already allocated PCID is no longer valid.  The implication is
the TLB shootdown for the given cpu/address space, due to the
allocation of new PCID.

The pm_save mask is no longer has to be tracked, which (significantly)
reduces the targets of the TLB shootdown IPIs.  Previously, pm_save
was reset only on pmap_invalidate_all(), which made it accumulate the
cpuids of all processors on which the thread was scheduled between
full TLB shootdowns.

Besides reducing the amount of TLB shootdowns and removing atomics to
update pm_saves in the context switch code, the algorithm is much
simpler than the maintanence of pm_save and selection of the right
address space in the shootdown IPI handler.

Reviewed by:	alc
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
2015-05-09 19:11:01 +00:00
Konstantin Belousov
6841f70168 Remove unused define.
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2015-05-09 18:38:35 +00:00
Konstantin Belousov
ac437c0754 Do not return from thread_single(SINGLE_BOUNDARY) until all stopped
thread are guarenteed to be removed from the processors.

Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2015-05-09 18:32:13 +00:00
Konstantin Belousov
b57a73f8e7 If x86 CPU implementation of the MWAIT instruction reasonably
interacts with interrupts, query ACPI and use MWAIT for entrance into
Cx sleep states.  Support C1 "I/O then halt" mode.  See Intel'
document 302223-007 "Intelб╝ Processor Vendor-Specific ACPI Interface
Specification" for description.

Move the acpi_cpu_c1() function into x86/cpu_machdep.c and use
it instead of inlining "sti; hlt" sequence in several places.

In the acpi(4) man page, besides documenting the dev.cpu.N.cx_methods
sysctl, correct the names for dev.cpu.N.{cx_usage,cx_lowest,cx_supported}
sysctls.

Both jkim and avg have some other patches implementing the mwait
functionality; this work is unrelated.  Linux does not rely on the
ACPI to provide correct tables describing Cx modes.  Instead, the
driver has pre-defined knowledge of the CPU models, it was supplied by
Intel.

Tested by:    pho (previous versions)
Sponsored by:	The FreeBSD Foundation
2015-05-09 12:28:48 +00:00
Bjoern A. Zeeb
62699f3424 Convert remaining hwpmc(4) debug printfs over to KTR to unbreak the build
for at least powerpc kernels.   Missed in r282658.

MFC after:	10 days
2015-05-09 09:21:59 +00:00
Luiz Otavio O Souza
8b651535df Pass the resources requests to the upper bus.
Submitted by:	Michal Meloun <meloun@miracle.cz>
2015-05-09 03:39:18 +00:00
Luiz Otavio O Souza
3bb6bf473f Handle IRQ resources on iicbus and ofw_iicbus.
Based on a patch submitted by Michal Meloun <meloun@miracle.cz>.
2015-05-09 03:05:44 +00:00
Luiz Otavio O Souza
5791e134f7 Replace spaces with tabs, removes an extra blank line.
No functional changes.
2015-05-08 21:51:37 +00:00
Ian Lepore
148e6c42e4 Move the text section to the start of the output file, so that when you
create a stripped .bin file from it the entry point is the first byte of
the file.  (Will allow "load $addr $file ; go $addr" in u-boot.)
2015-05-08 19:43:53 +00:00
John Baldwin
e735691b61 Place VM objects on the object list when created and never remove them.
This is ok since objects come from a NOFREE zone and allows objects to
be locked while traversing the object list without triggering a LOR.

Ensure that objects on the list are marked DEAD while free or stillborn,
and that they have a refcount of zero.  This required updating most of
the pagers to explicitly mark an object as dead when deallocating it.
(Only the vnode pager did this previously.)

Differential Revision:	https://reviews.freebsd.org/D2423
Reviewed by:	alc, kib (earlier version)
MFC after:	2 weeks
Sponsored by:	Norse Corp, Inc.
2015-05-08 19:43:37 +00:00
John Baldwin
4a3690dfa1 Convert hwpmc(4) debug printfs over to KTR.
Differential Revision:	https://reviews.freebsd.org/D2487
Reviewed by:	davide, emaste
MFC after:	2 weeks
Sponsored by:	Norse Corp, Inc.
2015-05-08 19:40:00 +00:00
Glen Barber
c083dc0321 Use the IMX6 kernel configuration for the WANDBOARD build,
since it supports all of these board variants.

While here, remove the WANDBOARD-{QUAD,SOLO,DUAL} kernel
configuration files.

Discussed with:	ian
Sponsored by:	The FreeBSD Foundation
2015-05-08 18:55:09 +00:00
Zbigniew Bodek
1ca4eb3acc Port x86 busdma to ARM64
The x86 busdma subsystem allows using multiple implementations.
By default the classic bounce buffer approach is used, however
on systems with IOMMU it could be in runtime switched to more
efficient hardware accelerated implementation.

This commit adds ARM64 port of the x86 busdma framework and bounce
buffer backend. It is ready to use on IO coherent systems. If the
IO coherency cannot be guaranteed, the cache management operations have
to be added to this code in places marked by /* XXX ARM64TODO (...) */
comments. Also IOMMU support might be added by registering another
busdma implementation like it is already done on the x86.

Reviewed by:   andrew, emaste
Obtained from: Semihalf
Sponsored by:  The FreeBSD Foundation
2015-05-08 18:47:19 +00:00
Hans Petter Selasky
8c20de927a Ensure the USB audio driver doesn't attach twice on the same USB
device by grabbing all the USB audio device interfaces.

MFC after:	1 week
2015-05-08 17:48:48 +00:00
Hans Petter Selasky
9dd1273385 Add support for more than 8 audio channels per PCM stream for USB
audio class compliant devices under FreeBSD. Tested using 16 recording
and 16 playback audio channels simultaneously.

MFC after:	2 weeks
2015-05-08 17:07:11 +00:00
Hans Petter Selasky
4ece1a889b Extend the maximum number of allowed PCM channels in a PCM stream to
127 and decrease the maximum number of sub-channels to 1. These
definitions are only used inside the kernel and can be changed later
if more than one sub-channel is desired. This has been done to allow
so-called USB audio rack modules to work with FreeBSD.

Bump the FreeBSD version to force recompiling all external modules.

MFC after:	2 weeks
Reviewed by:	mav
2015-05-08 17:00:33 +00:00
Hans Petter Selasky
e4a5ee711a The "SYSCTL_INT()" default value is only used for read only SYSCTLs
and is not applicable unless the integer pointer is NULL. Set it to
zero to avoid confusion. While at it remove extra semicolon at the end
of the "VT_SYSCTL_INT()" macro.

MFC after:		1 week
2015-05-08 16:37:40 +00:00
Hans Petter Selasky
4ee69cc712 Prevent switching to NULL or own window in the "vt_proc_window_switch"
function. This fixes an issue where X11 keyboard input can appear
stuck. The cause of the problem is a duplicate TTY device window
switch IOCTL during boot, which leaves the "vt_switch_timer" running,
because the current window is already selected. While at it factor out
some NULL checks.

PR:			200032
Differential Revision:	https://reviews.freebsd.org/D2480
Reported by:		several people
MFC after:		1 week
Reviewed by:		emaste
2015-05-08 16:19:01 +00:00
John Baldwin
680f1afd94 Move hwpmc(4) debugging code under a new HWPMC_DEBUG option instead of
the broader DEBUG option.

Reviewed by:	emaste
MFC after:	2 weeks
Sponsored by:	Norse Corp, Inc.
2015-05-08 15:57:23 +00:00
Roger Pau Monné
0df8b29da3 xen: introduce a newbus function to allocate unused memory
In order to map memory from other domains when running on Xen FreeBSD uses
unused physical memory regions. Until now this memory has been allocated
using bus_alloc_resource, but this is not completely safe as we can end up
using unreclaimed MMIO or ACPI regions.

Fix this by introducing a new newbus method that can be used by Xen drivers
to request for unused memory regions. On amd64 we make sure this memory
comes from regions above 4GB in order to prevent clashes with MMIO/ACPI
regions. On i386 there's nothing we can do, so just fall back to the
previous mechanism.

Sponsored by: Citrix Systems R&D
Tested by: Gustau Pérez <gperez@entel.upc.edu>
2015-05-08 14:48:40 +00:00
Andriy Gapon
96b60db0d7 MFV r282630: 5809 Blowaway full receive in v1 pool causes kernel panic
MFC after:	5 days
2015-05-08 14:03:14 +00:00
Kevin Lo
997d8c7a89 - Fix a wrong R92C_USTIME_TSF register definition
- Fix intitial transmit rate to an 11g rate for the RTL8188EU
- Add a comment about response rate settings
2015-05-08 09:01:00 +00:00
Adrian Chadd
cf82d8112e oops - how'd i miss this. Sorry! 2015-05-08 06:02:23 +00:00
Ganbold Tsagaankhuu
bd14d14fcd This follows the gic and ti/aintc code by adding additional barriers to the
Amlogic pic driver.

Differential Revision:	https://reviews.freebsd.org/D2472
Submitted by:		John Wehle
2015-05-08 04:38:01 +00:00
Ganbold Tsagaankhuu
2a77d72739 The interrupt-parent is set globally so it's unnecessary to also set it at each node.
Differential Revision:	https://reviews.freebsd.org/D2471
Submitted by:		John Wehle
2015-05-08 04:22:11 +00:00
Adrian Chadd
415d7ccab2 Add initial memory locality cost awareness to the VM, and include
a basic ACPI SLIT table parser.

For now this just exports the map via sysctl; it'll eventually be useful
to userland when there's more useful NUMA support in -HEAD.

* Add an optional mem_locality map;
* add a mapping function taking from/to domain and returning the
  relative cost, or -1 if it's not available;
* Add a very basic SLIT parser to x86 ACPI.

Differential Revision:	https://reviews.freebsd.org/D2460
Reviewed by:	rpaulo, stas, jhb
Sponsored by:	Norse Corp, Inc (hardware, coding); Dell (hardware)
2015-05-08 00:56:56 +00:00
Luiz Otavio O Souza
962940ce6c Add the SMP support for Raspberry Pi 2 (BCM2836).
Tested with the build of some ports and a buildworld.

Submitted by:	Daisuke Aoyama <aoyama@peach.ne.jp>
2015-05-07 22:11:44 +00:00
Andrey V. Elsukov
089bb672c4 m_dup() is supposed to give a writable copy of an mbuf chain. It uses
m_dup_pkthdr(), that uses M_COPYFLAGS mask to copy m_flags field.
If original mbuf chain has M_RDONLY flag, its copy also will have it.
Reset this flag explicitly.

MFC after:	2 weeks
2015-05-07 18:35:01 +00:00
Ed Maste
185bf88e33 Correct PL310_POWER_CTRL offset
Offet for the power control register was specified incorrectly (it had
the same value as the prefetch control register.) This change corrects
the offset value to 0xF80, per the ARM PL310 documentation.

Submitted by:	Steve Kiernan <stevek@juniper.net>
Obtained from:	Juniper Networks, Inc.
2015-05-07 16:56:20 +00:00
Andrey V. Elsukov
654bdb5abb Mark data checksum as valid for multicast packets, that we send back
to myself via simloop.
Also remove duplicate check under #ifdef DIAGNOSTIC.

PR:		180065
MFC after:	1 week
2015-05-07 14:17:43 +00:00
Hans Petter Selasky
415bcd89a6 Add support for DYMO LabelWriter PnP.
MFC after:		2 weeks
2015-05-07 12:54:27 +00:00
Andrew Turner
d667b90d53 Clean up the ARM kernel configs to use 'include<space><tab>"file"'. 2015-05-07 12:38:23 +00:00
Andrey V. Elsukov
db037aa4ed Remove unneded #ifdef INET6 and IPSEC. This file compiled only when
both options are defined.
Include opt_sctp.h and sctp_crc32.h to enable #ifdef SCTP code block
and delayed checksum calculation for SCTP.
2015-05-07 12:15:45 +00:00
Neel Natu
ede0403309 Check 'td_owepreempt' and yield the vcpu thread if it is set.
This is done explicitly because a vcpu thread can be in a critical section
for the entire time slice alloted to it. This in turn can delay the handling
of the 'td_owepreempt'.

Reviewed by:	jhb
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D2430
2015-05-06 23:40:24 +00:00
Mateusz Guzik
edf1796d3e Fix up panics when fork fails due to hitting proc limit
The function clearning credentials on failure asserts the process is a
zombie, which is not true when fork fails.

Changing creds to NULL is unnecessary, but is still being done for
consistency with other code.

Pointy hat: mjg
Reported by: pho
2015-05-06 21:03:19 +00:00
Alexander Motin
0631de4a79 Handle EDQUOT backend storage errors same as ENOSPC.
MFC after:	1 week
2015-05-06 19:47:31 +00:00
Neel Natu
9c4d547896 Deprecate the 3-way return values from vm_gla2gpa() and vm_copy_setup().
Prior to this change both functions returned 0 for success, -1 for failure
and +1 to indicate that an exception was injected into the guest.

The numerical value of ERESTART also happens to be -1 so when these functions
returned -1 it had to be translated to a positive errno value to prevent the
VM_RUN ioctl from being inadvertently restarted. This made it easy to introduce
bugs when writing emulation code.

Fix this by adding an 'int *guest_fault' parameter and setting it to '1' if
an exception was delivered to the guest. The return value is 0 or EFAULT so
no additional translation is needed.

Reviewed by:	tychon
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D2428
2015-05-06 16:25:20 +00:00
Zbigniew Bodek
c4b8fcd66c Add new CP15 operations and DB_SHOW_COMMAND to print CP15 registers
Submitted by:   Wojciech Macek <wma@semihalf.com>
Reviewed by:    imp, Michal Meloun <meloun@miracle.cz>
Obtained from:  Semihalf
2015-05-06 15:17:28 +00:00
Andrew Turner
fe5d5d7d05 AcpiGbl_FACS will not be defined when building using the reduced hardware
model. This may be the case on ARM.
2015-05-06 14:14:14 +00:00
Andrew Turner
ef74544931 If the power management timer is unsupported the PmTimerLength value will
be zero.
2015-05-06 14:09:54 +00:00
Andrey V. Elsukov
b347bc3b7a Pass mtag argument into m_tag_locate() to continue the search from
the last found mtag.
2015-05-06 14:02:57 +00:00
Glen Barber
2252f43bdc MFH: r282315-r282534
Sponsored by:	The FreeBSD Foundation
2015-05-06 11:50:30 +00:00