Commit Graph

1964 Commits

Author SHA1 Message Date
Marcel Moolenaar
c78a079c40 kernacc() expects all KVAs to be covered in the kernel map. With the
introduction of the PBVM, this stopped being the case. Redefine the
VM parameters so that the PBVM is included in the kernel map. In
particular this introduces VM_INIT_KERNEL_ADDRESS to point to the base
of region 5 now that VM_MIN_KERNEL_ADDRESS points to the base of
region 4 to include the PBVM.
While here define KERNBASE to the actual link address of the kernel as
is intended.

PR:		169926
2013-02-25 02:41:38 +00:00
Marcel Moolenaar
1736d28c44 Enable PREEMPTION by default now that PR 147501 has been fixed. 2013-02-23 19:27:53 +00:00
Marcel Moolenaar
51a325a7f9 Close a race relating to setting the PCPU pointer (r13). Register r13
points to the TLS in user space and points to the PCPU structure in
the kernel. The race is the result of having the exception handler on
the one hand and the RPC system call entry on the other. The EPC
syscall path is non-atomic in that interrupts are enabled while the
two stacks are switched. The register stack is switched last as that
is the stack used to determine whether we're going back to user space
by the exception handler. If we go back to user space, we restore r13,
otherwise we leave r13 alone. The EPC syscall path however set r13 to
the PCPU structure *before* switching the register stack, which means
that there was a window in which the exception handler would restore
r13 when it was already pointing to the PCPU structure. This is fatal
when the exception happened on CPU x, but left from the exception on
anotehr CPU. In that case r13 would point to the PCPU of the CPU the
thread was running on. This immediately results in getting the wrong
value for curthread.
The fix is to make sure we assign r13 *after* we set ar.bspstore to
point to the kernel register stack for the thread.
2013-02-17 00:51:34 +00:00
Marcel Moolenaar
cb35030ab3 Return EFAULT when the address is not a kernel virtual address. 2013-02-16 21:46:27 +00:00
Marcel Moolenaar
f1acb9d36e Eliminate the PC_CURTHREAD symbol and load the current thread's
thread structure pointer atomically from r13 (the pcpu pointer)
for the current CPU/core.
Add a CTASSERT in machdep.c to make sure that pc_curthread is in
fact the first field in struct pcpu.

The only non-atomic operations left were those related to process-
space operations, such as casuword, subyte, suword16, fubyte,
fuword16, copyin, copyout and their variations.

The casuword function has been re-structured more complete than
the others. This way we have an example of a better bundling
without introducing a lot of risk when we get it wrong. The
other functions can be rebundled in separate commits and with
the appropriate testing.
2013-02-12 17:38:35 +00:00
Marcel Moolenaar
22aa5c496b Eliminate padding by moving 'narg' next to 'code'. Both are 32-bit
entities in the syscall_args structure that otherwise has 64-bit
only fields.
2013-02-12 17:24:41 +00:00
Konstantin Belousov
dd0b4fb6d5 Reform the busdma API so that new types may be added without modifying
every architecture's busdma_machdep.c.  It is done by unifying the
bus_dmamap_load_buffer() routines so that they may be called from MI
code.  The MD busdma is then given a chance to do any final processing
in the complete() callback.

The cam changes unify the bus_dmamap_load* handling in cam drivers.

The arm and mips implementations are updated to track virtual
addresses for sync().  Previously this was done in a type specific
way.  Now it is done in a generic way by recording the list of
virtuals in the map.

Submitted by:	jeff (sponsored by EMC/Isilon)
Reviewed by:	kan (previous version), scottl,
	mjacob (isp(4), no objections for target mode changes)
Discussed with:	     ian (arm changes)
Tested by:	marius (sparc64), mips (jmallet), isci(4) on x86 (jharris),
	amd64 (Fabian Keil <freebsd-listen@fabiankeil.de>)
2013-02-12 16:57:20 +00:00
Marcel Moolenaar
44c169253d Now that we actually use more memory descriptors, make sure to dump
them as well.
2013-02-12 16:51:43 +00:00
Hiroki Sato
729e57723d Remove firewire devices missed in r244992. 2013-01-04 15:29:50 +00:00
Konstantin Belousov
0dcbedfa61 Enable the UFS quotas for big-iron GENERIC kernels.
Discussed with:	      mckusick
MFC after:	      2 weeks
2013-01-03 19:03:41 +00:00
Dag-Erling Smørgrav
36fca20f10 As discussed on -current last October, remove the firewire drivers from
GENERIC.
2013-01-03 14:30:24 +00:00
Konstantin Belousov
b32ecf44bc Flip the semantic of M_NOWAIT to only require the allocation to not
sleep, and perform the page allocations with VM_ALLOC_SYSTEM
class. Previously, the allocation was also allowed to completely drain
the reserve of the free pages, being translated to VM_ALLOC_INTERRUPT
request class for vm_page_alloc() and similar functions.

Allow the caller of malloc* to request the 'deep drain' semantic by
providing M_USE_RESERVE flag, now translated to VM_ALLOC_INTERRUPT
class. Previously, it resulted in less aggressive VM_ALLOC_SYSTEM
allocation class.

Centralize the translation of the M_* malloc(9) flags in the single
inline function malloc2vm_flags().

Discussion started by:	"Sears, Steven" <Steven.Sears@netapp.com>
Reviewed by:	alc, mdf (previous version)
Tested by:	pho (previous version)
MFC after:	2 weeks
2012-11-14 20:01:40 +00:00
Attilio Rao
cfedf924d3 Rework the known rwlock to benefit about staying on their own
cache line in order to avoid manual frobbing but using
struct rwlock_padalign.

Reviewed by:	alc, jimharris
2012-11-03 23:03:14 +00:00
Konstantin Belousov
28854834f4 Fix compilation on ia64 when page size is configured for 16KB.
Reviewed by:	alc, marcel
2012-10-28 11:53:54 +00:00
Alan Cox
cdd7357cc5 Port the new PV entry allocator from amd64/i386. This allocator has two
advantages.  First, PV entries are roughly half the size.  Second, this
allocator doesn't access the paging queues, and thus it allows for the
removal of the page queues lock from this pmap.

Replace all uses of the page queues lock by a R/W lock that is private
to this pmap.

Tested by:	marcel
2012-10-26 03:02:39 +00:00
Alan Cox
e4b8a2fc5a Eliminate a stale comment. It describes another use case for the pmap in
Mach that doesn't exist in FreeBSD.
2012-09-28 05:30:59 +00:00
Attilio Rao
324e57150d userret() already checks for td_locks when INVARIANTS is enabled, so
there is no need to check if Giant is acquired after it.

Reviewed by:	kib
MFC after:	1 week
2012-09-08 18:27:11 +00:00
Marcel Moolenaar
5435dbc676 Use pmap_kextract(x) rather than pmap_extract(kernel_pmap, x). The
former knows about all the special mappings, like PBVM. The kernel
text and data are in the PBVM.
2012-08-18 23:28:34 +00:00
Marcel Moolenaar
85e6303e05 Remove support for SKI: HP's Itanium simulator. It's pretty much not
used, serves very little value given that FreeBSD runs on real H/W
for a long time.
Note that SKI is open-source (see http://ski.sourceforge.net), so
if there's interest and value again, then this code can be revived.

Discussed with: jhb
2012-08-18 22:59:06 +00:00
John Baldwin
9ea9af5281 Add locking for sscdisk(4) and mark it MPSAFE. Since this driver just
makes calls out to the emulator, the locking is fairly simple.  A global
mutex protects the list of ssc disks, and each ssc disk has a mutex
to protect it's bioq.

Approved by:	marcel
2012-08-16 17:17:08 +00:00
Konstantin Belousov
1c771f9222 After the PHYS_TO_VM_PAGE() function was de-inlined, the main reason
to pull vm_param.h was removed.  Other big dependency of vm_page.h on
vm_param.h are PA_LOCK* definitions, which are only needed for
in-kernel code, because modules use KBI-safe functions to lock the
pages.

Stop including vm_param.h into vm_page.h. Include vm_param.h
explicitely for the kernel code which needs it.

Suggested and reviewed by:	alc
MFC after:    2 weeks
2012-08-05 14:11:42 +00:00
Marcel Moolenaar
0aa31a3393 Move PCPU initialization to a new function called cpu_pcpu_setup().
This makes it easier to add additional CPU or platform information
to the per-CPU structure without duplicated code.
2012-07-08 18:00:22 +00:00
Marcel Moolenaar
6d5cb58b5f Unleash the APs at SI_SUB_KICK_SCHEDULER so that we have them all
up and running to service interrupts. This is especially important
when the firmware has bound interrupts to CPUs, like for the SGI
Altix 350. We wake up APs at SI_SUB_CPU time and they sit and spin
until we unleash them, so there's nothing fundamentally different
from a MD perspective.
2012-07-08 17:43:25 +00:00
Marcel Moolenaar
373ca4ed22 Implement ia64_physmem_alloc() and use it consistently to get memory
before VM has been initialized. This includes:
1.  Replacing pmap_steal_memory(),
2.  Replace the handcrafted logic to allocate a naturally aligned VHPT,
3.  Properly allocate the DPCPU for the BSP.

Ad 3: Appending the DPCPU to kernend worked as long as we wouldn't
      cross into the next PBVM page. If we were to cross into the next
      page, then there wouldn't be a PTE entry on the page table for it
      and we would end up with a MCA following a page fault. As such,
      this commit fixes MCAs occasionally seen.
2012-07-07 05:17:43 +00:00
Marcel Moolenaar
662d34aff2 Hide the creation of phys_avail behind an API to make it easier to do it
correctly. We now iterate the EFI memory descriptors once and collect all
the information in a single pass. This includes:
1.  The I/O port base address,
2.  The PAL memory region. Have the physmem API track this.
3.  Memory descriptors of memory we can't use, like bad memory, runtime
    services code & data, etc. Have the physmem API track these.
4.  memory descriptors of memory we can use or re-use, such as free
    memory, boot time services code & data, loader code & data, etc.
    These are added by the physmem API.

Since the PBVM page table and pages are in memory described as loader
data, inform the physmem API of chunks that need to be delated from the
available physical memory.

While here, remove Maxmem and replace it with the better named paddr_max.
Maxmem was defined as physmem, which is generally wrong. Now, paddr_max
is properly defined as the largesty physical address.

The upshot of all this is that:
1.  We properly determine realmem.
2.  We maximize physmem by re-using memory where possible.
3.  We remove complexity from ia64_init() in machdep.c.
4.  Remove confusion about realmem, physmem & Maxmem.

The new ia64_physmem_alloc() is to replace pmap_steal_memory() in pmap.c,
as well as replace the handcrafted allocation of the VHPT for the BSP in
pmap_bootstrap() in pmap.c. This is step 2 and addresses the manipulation
of phys_avail after it is being created.
2012-07-07 00:25:17 +00:00
Andrew Turner
74dc547e24 Make the wchar_t type machine dependent.
This is required for ARM EABI. Section 7.1.1 of the Procedure Call for the
ARM Architecture (AAPCS) defines wchar_t as either an unsigned int or an
unsigned short with the former preferred.

Because of this requirement we need to move the definition of __wchar_t to
a machine dependent header. It also cleans up the macros defining the limits
of wchar_t by defining __WCHAR_MIN and __WCHAR_MAX in the same machine
dependent header then using them to define WCHAR_MIN and WCHAR_MAX
respectively.

Discussed with:	bde
2012-06-24 04:15:58 +00:00
Konstantin Belousov
aea810386d Implement mechanism to export some kernel timekeeping data to
usermode, using shared page.  The structures and functions have vdso
prefix, to indicate the intended location of the code in some future.

The versioned per-algorithm data is exported in the format of struct
vdso_timehands, which mostly repeats the content of in-kernel struct
timehands. Usermode reading of the structure can be lockless.
Compatibility export for 32bit processes on 64bit host is also
provided. Kernel also provides usermode with indication about
currently used timecounter, so that libc can fall back to syscall if
configured timecounter is unknown to usermode code.

The shared data updates are initiated both from the tc_windup(), where
a fast task is queued to do the update, and from sysctl handlers which
change timecounter. A manual override switch
kern.timecounter.fast_gettime allows to turn off the mechanism.

Only x86 architectures export the real algorithm data, and there, only
for tsc timecounter. HPET counters page could be exported as well, but
I prefer to not further glue the kernel and libc ABI there until
proper vdso-based solution is developed.

Minimal stubs neccessary for non-x86 architectures to still compile
are provided.

Discussed with:	bde
Reviewed by:	jhb
Tested by:	flo
MFC after:	1 month
2012-06-22 07:06:40 +00:00
Konstantin Belousov
232aa31fb9 Reserve AT_TIMEKEEP auxv entry for providing usermode the pointer to
timekeeping information.

MFC after:  1 week
2012-06-22 06:38:31 +00:00
Alan Cox
6031c68de4 The page flag PGA_WRITEABLE is set and cleared exclusively by the pmap
layer, but it is read directly by the MI VM layer.  This change introduces
pmap_page_is_write_mapped() in order to completely encapsulate all direct
access to PGA_WRITEABLE in the pmap layer.

Aesthetics aside, I am making this change because amd64 will likely begin
using an alternative method to track write mappings, and having
pmap_page_is_write_mapped() in place allows me to make such a change
without further modification to the MI VM layer.

As an added bonus, tidy up some nearby comments concerning page flags.

Reviewed by:	kib
MFC after:	6 weeks
2012-06-16 18:56:19 +00:00
Jung-uk Kim
d3638dc4de Improve style(9) in the previous commit. 2012-06-01 17:07:52 +00:00
Mitsuru IWASAKI
f0a101b7e2 Call AcpiLeaveSleepStatePrep() in interrupt disabled context
(described in ACPICA source code).

- Move intr_disable() and intr_restore() from acpi_wakeup.c to acpi.c
  and call AcpiLeaveSleepStatePrep() in interrupt disabled context.
- Add acpi_wakeup_machdep() to execute wakeup MD procedures and call
  it twice in interrupt disabled/enabled context (ia64 version is
  just dummy).
- Rename wakeup_cpus variable in acpi_sleep_machdep() to suspcpus in
  order to be shared by acpi_sleep_machdep() and acpi_wakeup_machdep().
- Move identity mapping related code to acpi_install_wakeup_handler()
  (i386 version) for preparation of x86/acpica/acpi_wakeup.c
  (MFC candidate).

Reviewed by:	jkim@
MFC after:	2 days
2012-06-01 15:26:32 +00:00
Alan Cox
2865094134 pmap_alloc_vhpt() doesn't need the pages that it allocates to be mapped
into the kernel map, so vm_page_alloc_contig() can be used in place of
contigmalloc().

Reviewed by:	marcel
2012-06-01 03:56:12 +00:00
Bjoern A. Zeeb
920b965865 MFp4 bz_ipv6_fast:
in_cksum.h required ip.h to be included for struct ip.  To be
  able to use some general checksum functions like in_addword()
  in a non-IPv4 context, limit the (also exported to user space)
  IPv4 specific functions to the times, when the ip.h header is
  present and IPVERSION is defined (to 4).

  We should consider more general checksum (updating) functions
  to also allow easier incremental checksum updates in the L3/4
  stack and firewalls, as well as ponder further requirements by
  certain NIC drivers needing slightly different pseudo values
  in offloading cases.  Thinking in terms of a better "library".

  Sponsored by:	The FreeBSD Foundation
  Sponsored by:	iXsystems

Reviewed by:	gnn (as part of the whole)
MFC After:	3 days
2012-05-24 22:00:48 +00:00
Marcel Moolenaar
a48b6a8585 Don't assume we have legacy PICs (i.e. 8259A in cascade) at the legacy
I/O port addresses. Even if we do, this is hardly the place to mask
interrupts. It's not clear that this was at all needed. The code came
with CVS revision 1.2 of nexus.c when interrupt support was first added.
What is known is that ia64 has always been designed around the IOSAPIC,
and that doing I/O like this prevents Altix from booting.
2012-05-04 23:16:29 +00:00
Dimitry Andric
460378bf13 Add a convenience macro for the returns_twice attribute, and apply it to
the prototypes of the appropriate functions (getcontext, savectx,
setjmp, sigsetjmp and vfork).

MFC after:	2 weeks
2012-04-29 11:04:31 +00:00
Ed Schouten
92396a3174 Remove pty(4) from our kernel configurations.
As of FreeBSD 8, this driver should not be used. Applications that use
posix_openpt(2) and openpty(3) use the pts(4) that is built into the
kernel unconditionally. If it turns out high profile depend on the
pty(4) module anyway, I'd rather get those fixed. So please report any
issues to me.

The pty(4) module is still available as a kernel module of course, so a
simple `kldload pty' can be used to run old-style pseudo-terminals.
2012-03-21 08:38:42 +00:00
Tijl Coosemans
2c7879ea84 Copy i386 specialreg.h to x86 and merge with amd64 specialreg.h. Replace
amd64/i386/pc98 specialreg.h with stubs.
2012-03-19 21:34:11 +00:00
Tijl Coosemans
68156ad982 Copy i386 psl.h to x86 and replace amd64/i386/pc98 psl.h with stubs. 2012-03-19 21:29:57 +00:00
Tijl Coosemans
bcde3b9f67 Move userland bits (and some common kernel bits) from amd64 and i386
segments.h to a new x86 segments.h.

Add __packed attribute to some structs (just to be sure).
Also make it clear that i386 GDT and LDT entries are used in ia64 code.
2012-03-19 21:24:50 +00:00
Tijl Coosemans
6e310b206f Eliminate ia32_reg.h by moving its contents to x86 and ia64 reg.h.
Reviewed by:	kib
2012-03-18 19:12:11 +00:00
Attilio Rao
9c170fd168 Disable the option VFS_ALLOW_NONMPSAFE by default on all the supported
platforms.
This will make every attempt to mount a non-mpsafe filesystem to the
kernel forbidden, unless it is expressely compiled with
VFS_ALLOW_NONMPSAFE option.

This patch is part of the effort of killing non-MPSAFE filesystems
from the tree.

No MFC is expected for this patch.
2012-03-06 20:01:25 +00:00
John Baldwin
831ce4cb3d - Change contigmalloc() to use the vm_paddr_t type instead of an unsigned
long for specifying a boundary constraint.
- Change bus_dma tags to use bus_addr_t instead of bus_size_t for boundary
  constraints.

These allow boundary constraints to be fully expressed for cases where
sizeof(bus_addr_t) != sizeof(bus_size_t).  Specifically, it allows a
driver to properly specify a 4GB boundary in a PAE kernel.

Note that this cannot be safely MFC'd without a lot of compat shims due
to KBI changes, so I do not intend to merge it.

Reviewed by:	scottl
2012-03-01 19:58:34 +00:00
Gavin Atkinson
1748d1e513 Correct capitalization of "Hz" in user-visible text (manpages, printf(),
etc).

MFC after:	3 days
2012-02-28 13:19:34 +00:00
Marcel Moolenaar
2cb3783b57 Rev. 228360 moved the call to cpu_set_upcall() to happen before
td_proc gets initialized in td (=newtd). Use td0 instead.

MFC after:	3 days
2012-02-08 04:05:38 +00:00
David Schultz
2ee7b1d4ae Add C11 macros describing subnormal numbers to float.h.
Reviewed by:	bde
2012-01-23 06:36:41 +00:00
David Schultz
9fa03ecd01 Add parentheses where required. Without them, `sizeof LDBL_MAX'
is a syntax error and shouldn't be, while `1 FLT_ROUNDS' isn't a
syntax error and should be.  Thanks to bde for the examples.
2012-01-20 06:51:41 +00:00
Kenneth D. Merry
130f4520cb Add the CAM Target Layer (CTL).
CTL is a disk and processor device emulation subsystem originally written
for Copan Systems under Linux starting in 2003.  It has been shipping in
Copan (now SGI) products since 2005.

It was ported to FreeBSD in 2008, and thanks to an agreement between SGI
(who acquired Copan's assets in 2010) and Spectra Logic in 2010, CTL is
available under a BSD-style license.  The intent behind the agreement was
that Spectra would work to get CTL into the FreeBSD tree.

Some CTL features:

 - Disk and processor device emulation.
 - Tagged queueing
 - SCSI task attribute support (ordered, head of queue, simple tags)
 - SCSI implicit command ordering support.  (e.g. if a read follows a mode
   select, the read will be blocked until the mode select completes.)
 - Full task management support (abort, LUN reset, target reset, etc.)
 - Support for multiple ports
 - Support for multiple simultaneous initiators
 - Support for multiple simultaneous backing stores
 - Persistent reservation support
 - Mode sense/select support
 - Error injection support
 - High Availability support (1)
 - All I/O handled in-kernel, no userland context switch overhead.

(1) HA Support is just an API stub, and needs much more to be fully
    functional.

ctl.c:			The core of CTL.  Command handlers and processing,
			character driver, and HA support are here.

ctl.h:			Basic function declarations and data structures.

ctl_backend.c,
ctl_backend.h:		The basic CTL backend API.

ctl_backend_block.c,
ctl_backend_block.h:	The block and file backend.  This allows for using
			a disk or a file as the backing store for a LUN.
			Multiple threads are started to do I/O to the
			backing device, primarily because the VFS API
			requires that to get any concurrency.

ctl_backend_ramdisk.c:	A "fake" ramdisk backend.  It only allocates a
			small amount of memory to act as a source and sink
			for reads and writes from an initiator.  Therefore
			it cannot be used for any real data, but it can be
			used to test for throughput.  It can also be used
			to test initiators' support for extremely large LUNs.

ctl_cmd_table.c:	This is a table with all 256 possible SCSI opcodes,
			and command handler functions defined for supported
			opcodes.

ctl_debug.h:		Debugging support.

ctl_error.c,
ctl_error.h:		CTL-specific wrappers around the CAM sense building
			functions.

ctl_frontend.c,
ctl_frontend.h:		These files define the basic CTL frontend port API.

ctl_frontend_cam_sim.c:	This is a CTL frontend port that is also a CAM SIM.
			This frontend allows for using CTL without any
			target-capable hardware.  So any LUNs you create in
			CTL are visible in CAM via this port.

ctl_frontend_internal.c,
ctl_frontend_internal.h:
			This is a frontend port written for Copan to do
			some system-specific tasks that required sending
			commands into CTL from inside the kernel.  This
			isn't entirely relevant to FreeBSD in general,
			but can perhaps be repurposed.

ctl_ha.h:		This is a stubbed-out High Availability API.  Much
			more is needed for full HA support.  See the
			comments in the header and the description of what
			is needed in the README.ctl.txt file for more
			details.

ctl_io.h:		This defines most of the core CTL I/O structures.
			union ctl_io is conceptually very similar to CAM's
			union ccb.

ctl_ioctl.h:		This defines all ioctls available through the CTL
			character device, and the data structures needed
			for those ioctls.

ctl_mem_pool.c,
ctl_mem_pool.h:		Generic memory pool implementation used by the
			internal frontend.

ctl_private.h:		Private data structres (e.g. CTL softc) and
			function prototypes.  This also includes the SCSI
			vendor and product names used by CTL.

ctl_scsi_all.c,
ctl_scsi_all.h:		CTL wrappers around CAM sense printing functions.

ctl_ser_table.c:	Command serialization table.  This defines what
			happens when one type of command is followed by
			another type of command.

ctl_util.c,
ctl_util.h:		CTL utility functions, primarily designed to be
			used from userland.  See ctladm for the primary
			consumer of these functions.  These include CDB
			building functions.

scsi_ctl.c:		CAM target peripheral driver and CTL frontend port.
			This is the path into CTL for commands from
			target-capable hardware/SIMs.

README.ctl.txt:		CTL code features, roadmap, to-do list.

usr.sbin/Makefile:	Add ctladm.

ctladm/Makefile,
ctladm/ctladm.8,
ctladm/ctladm.c,
ctladm/ctladm.h,
ctladm/util.c:		ctladm(8) is the CTL management utility.
			It fills a role similar to camcontrol(8).
			It allow configuring LUNs, issuing commands,
			injecting errors and various other control
			functions.

usr.bin/Makefile:	Add ctlstat.

ctlstat/Makefile
ctlstat/ctlstat.8,
ctlstat/ctlstat.c:	ctlstat(8) fills a role similar to iostat(8).
			It reports I/O statistics for CTL.

sys/conf/files:		Add CTL files.

sys/conf/NOTES:		Add device ctl.

sys/cam/scsi_all.h:	To conform to more recent specs, the inquiry CDB
			length field is now 2 bytes long.

			Add several mode page definitions for CTL.

sys/cam/scsi_all.c:	Handle the new 2 byte inquiry length.

sys/dev/ciss/ciss.c,
sys/dev/ata/atapi-cam.c,
sys/cam/scsi/scsi_targ_bh.c,
scsi_target/scsi_cmds.c,
mlxcontrol/interface.c:	Update for 2 byte inquiry length field.

scsi_da.h:		Add versions of the format and rigid disk pages
			that are in a more reasonable format for CTL.

amd64/conf/GENERIC,
i386/conf/GENERIC,
ia64/conf/GENERIC,
sparc64/conf/GENERIC:	Add device ctl.

i386/conf/PAE:		The CTL frontend SIM at least does not compile
			cleanly on PAE.

Sponsored by:	Copan Systems, SGI and Spectra Logic
MFC after:	1 month
2012-01-12 00:34:33 +00:00
Adrian Chadd
3d090dd20d Flip on IEEE80211_SUPPORT_MESH and AH_SUPPORT_AR5416, the
wlan and ath modules respectively assume this is set.

Pointy hat to:	adrian
2012-01-05 17:28:05 +00:00
Robert Watson
009d2032af Add "options CAPABILITY_MODE" and "options CAPABILITIES" to GENERIC kernel
configurations for various architectures in FreeBSD 10.x.  This allows
basic Capsicum functionality to be used in the default FreeBSD
configuration on non-embedded architectures; process descriptors are not
yet enabled by default.

MFC after:	3 months
Sponsored by:	Google, Inc
2011-12-29 22:48:36 +00:00
Andriy Gapon
9976156f12 kern cons: introduce infrastructure for console grabbing by kernel
At the moment grab and ungrab methods of all console drivers are no-ops.

Current intended meaning of the calls is that the kernel takes control of
console input.  In the future the semantics may be extended to mean that
the calling thread takes full ownership of the console (e.g. console
output from other threads could be suspended).

Inspired by:	bde
MFC after:	2 months
2011-12-17 15:08:43 +00:00