Commit Graph

1743 Commits

Author SHA1 Message Date
Mark Murray
f02e47dc1e Snapshot. This passes the build test, but has not yet been finished or debugged.
Contains:

* Refactor the hardware RNG CPU instruction sources to feed into
the software mixer. This is unfinished. The actual harvesting needs
to be sorted out. Modified by me (see below).

* Remove 'frac' parameter from random_harvest(). This was never
used and adds extra code for no good reason.

* Remove device write entropy harvesting. This provided a weak
attack vector, was not very good at bootstrapping the device. To
follow will be a replacement explicit reseed knob.

* Separate out all the RANDOM_PURE sources into separate harvest
entities. This adds some secuity in the case where more than one
is present.

* Review all the code and fix anything obviously messy or inconsistent.
Address som review concerns while I'm here, like rename the pseudo-rng
to 'dummy'.

Submitted by:	Arthur Mesh <arthurmesh@gmail.com> (the first item)
2013-10-04 06:55:06 +00:00
Sean Bruno
5c4d5cc795 set ROOTDEVNAME to ada0 with no paritions. This makes it much more functional
with makefs and other tools for testing and ports building

Approved by:    re (gjb)
MFC after:      2 weeks
2013-10-02 14:43:17 +00:00
Adrian Chadd
b0c6df8cbe Add pagemask debugging output in "show tlb" in the debugger.
Approved by:	re (marius)
Obtained from:	bsdimp
2013-09-29 10:14:16 +00:00
Gleb Smirnoff
255c1caae3 - Create kern.ipc.sendfile namespace, and put the new "readhead" OID
there as "kern.ipc.sendfile.readahead".
- Push all nsfbuf related tunables into MD code. Don't move them
  to new namespace in favor of POLA.

Reviewed by:	scottl
Approved by:	re (gjb)
2013-09-22 13:36:52 +00:00
Adrian Chadd
ad5b574375 Fix the AR933x CPU UART support by using the correct clock when calculating
the UART frequency.

Tested:

* AR933x (carambola 2 board), UART now works again

Approved by:	re
2013-09-21 19:42:37 +00:00
Alan Cox
deb179bb4c The pmap function pmap_clear_reference() is no longer used. Remove it.
pmap_clear_reference() has had exactly one caller in the kernel for
several years, more precisely, since FreeBSD 8.  Now, that call no
longer exists.

Approved by:	re (kib)
Sponsored by:	EMC / Isilon Storage Division
2013-09-20 04:30:18 +00:00
Sean Bruno
7995e29931 Bring in configuration for Buffalo Airstation WZR-300HP, Atheros based
wireless home router.

Notable things:
2x 16 MB flash devices
Atheros Wireless
Atheros Switching

Many thanks to adrian@ for his guidance on this and keeping the drivers in
the base system up to date

Approved by:    re (delphij)
2013-09-17 22:26:07 +00:00
Hiren Panchasara
7e06ee8383 We have grown a bit too big lately. Shrinking the kernel for TP-Link
TL-WR1043ND.

Submitted by:   loos (initial version)
Reviewed by:    adrian
Approved by:    sbruno (mentor, implicit)
Approved by:	re (delphij)
Tested by:      hiren
2013-09-17 20:33:42 +00:00
Jayachandran C.
485a81908b Netlogic XLP network driver update
Changes are to
- update board and network interface detection logic
- fix reading onboard CPLD in little-endian config
- print NAE frequency conrrectly for Bx chips
- update XAUI config to disable Rx/Tx until interface is up

Submitted by:	Venkatesh J V <venkatesh.vivekanandan@broadcom.com>
2013-09-07 18:26:16 +00:00
Jayachandran C.
cbd49bff46 Use a better version of memcpy/bcopy for mips kernel.
Use a variant of mips libc memcpy for kernel. This implementation uses
64-bit operations when compiled for 64-bit, and is significantly faster
in that case.

Submitted by:	Tanmay Jagdale <tanmayj@broadcom.com>
2013-09-07 16:31:30 +00:00
Mark Murray
9d32fc31c7 MFC 2013-09-07 07:58:29 +00:00
Luiz Otavio O Souza
ebcbd8aeff Remove the hardcoded limit for the number of gpio_pins that can be used.
Allocate it dynamically.

Approved by:	adrian (mentor)
2013-09-06 23:47:50 +00:00
Luiz Otavio O Souza
8d900240b0 Fix an off-by-one bug in ar71xx_gpio and bcm2835_gpio which makes the last
pin unavailable.

Reported and tested by:	sbruno (ar71xx)
Approved by:	adrian (mentor)
Pointy hat to:	loos
2013-09-06 23:39:56 +00:00
Mark Murray
c6c7b2912c Yarrow wants entropy estimations to be conservative; the usual idea
is that if you are certain you have N bits of entropy, you declare
N/2.
2013-09-06 17:51:52 +00:00
Gleb Smirnoff
2ee9b44cae Fix build with gcc. Move sf_buf_alloc()/sf_buf_free() declarations
to MD headers.
2013-09-06 17:44:13 +00:00
Luiz Otavio O Souza
ce6ba017fa Fix the leakage of dma tags on if_arge. The leak occur when arge_start()
add some packet(s) to tx ring and arge_stop() is called before receive the
sent packet interrupt from hardware.  Fix arge_stop() to unload the in use
dma tags and free the associated mbuf.

PR:		178319, 163670
Approved by:	adrian (mentor)
2013-09-06 12:47:14 +00:00
Gleb Smirnoff
e16477e8d9 On those machines, where sf_bufs do not represent any real object, make
sf_buf_alloc()/sf_buf_free() inlines, to save two calls to an absolutely
empty functions.

Reviewed by:	alc, kib, scottl
Sponsored by:	Nginx, Inc.
Sponsored by:	Netflix
2013-09-06 05:37:49 +00:00
Oleksandr Tymoshenko
3b15395e04 Add 32-bit support for Gxemul's oldtestmips machine emulation
Original work by: kan@
2013-09-04 20:34:36 +00:00
Sean Bruno
2b2cd594f5 Add options GEOM_PART_GPT and options MSDOSFS to the DIR-825
Reviewed by:	adrian@
2013-09-03 22:33:06 +00:00
Warner Losh
ce7c952a8e Newer versions of gcc define __INT64_C and __UINT64_C, so avoid
redefining them if gcc provides them.
2013-09-03 22:04:55 +00:00
Alan Cox
f4fd4d3470 pmap_protect() on MIPS does not need to acquire the pvh global lock. 2013-09-01 17:06:14 +00:00
Alan Cox
f00154a765 Implement pmap_advise(). 2013-08-31 16:21:13 +00:00
Oleksandr Tymoshenko
990dc2acfb - Set proper KERNLOADADDR
- Add bpf(4) required by dhclient
2013-08-31 01:30:01 +00:00
Oleksandr Tymoshenko
8376ffb561 YAMON is 32-bit application and uses 32-bit pointers to pass kernel
arguments and environment names/values. Cast values to proper pointer type
to make MALTA kernel 64-bit compatible
2013-08-31 01:24:05 +00:00
Hiren Panchasara
631f16444a Add device PicoStation M2HP support.
This is a nice small outdoor/indoor AP from Ubiquity Networks.

The device has:
AR7241 CPU SoC
AR9287 Wifi
8MB flash
32MB RAM

wifi has been tested to work along with leds.

Submitted by:   loos
Approved by:    sbruno (mentor, implicit)
Tested by:      hiren
2013-08-30 20:46:01 +00:00
Oleksandr Tymoshenko
ba74a6f44f Add bpf(4) to config file to get dhclient working 2013-08-30 20:30:33 +00:00
Oleksandr Tymoshenko
f9719fe14b Add PCI bus space implementation that converts all 2 and 4 bytes
values to/from little endian according to PCI spec.
2013-08-30 20:28:35 +00:00
Alan Cox
51321f7c31 Significantly reduce the cost, i.e., run time, of calls to madvise(...,
MADV_DONTNEED) and madvise(..., MADV_FREE).  Specifically, introduce a new
pmap function, pmap_advise(), that operates on a range of virtual addresses
within the specified pmap, allowing for a more efficient implementation of
MADV_DONTNEED and MADV_FREE.  Previously, the implementation of
MADV_DONTNEED and MADV_FREE relied on per-page pmap operations, such as
pmap_clear_reference().  Intuitively, the problem with this implementation
is that the pmap-level locks are acquired and released and the page table
traversed repeatedly, once for each resident page in the range
that was specified to madvise(2).  A more subtle flaw with the previous
implementation is that pmap_clear_reference() would clear the reference bit
on all mappings to the specified page, not just the mapping in the range
specified to madvise(2).

Since our malloc(3) makes heavy use of madvise(2), this change can have a
measureable impact.  For example, the system time for completing a parallel
"buildworld" on a 6-core amd64 machine was reduced by about 1.5% to 2.0%.

Note: This change only contains pmap_advise() implementations for a subset
of our supported architectures.  I will commit implementations for the
remaining architectures after further testing.  For now, a stub function is
sufficient because of the advisory nature of pmap_advise().

Discussed with: jeff, jhb, kib
Tested by:      pho (i386), marcel (ia64)
Sponsored by:   EMC / Isilon Storage Division
2013-08-29 15:49:05 +00:00
Luiz Otavio O Souza
973bf10594 Prevent the full restart cycle every time arge_start() is called. Only
(re)start the interface when it is down.  This change fix a race with
BOOTP where the response packet is lost because the interface is being
reset by a netmask change right after send the packet.

PR:		178318
Approved by:	adrian (mentor)
2013-08-29 12:48:12 +00:00
Luiz Otavio O Souza
b3cb2c4a93 Make ar71xx_spi attach the next free unit of spibus and not only spibus0.
Approved by:	adrian (mentor)
2013-08-28 14:46:15 +00:00
Luiz Otavio O Souza
2557c4beb1 Add the default hints to make the GPIO pins, rf led and reset switch work
out of the box on RouterStation.

PR:	177832
Submitted by:	Petko Bordjukov (bordjukov@gmail.com)
Approved by:	adrian (mentor)
2013-08-28 14:43:04 +00:00
Oleksandr Tymoshenko
feeabf2125 Fix GT PCI controller driver on big-endian hardware 2013-08-28 01:10:51 +00:00
Oleksandr Tymoshenko
e6353b0005 Fixes for compatibility with QEMU:
- Route PCI interrupt for NIC
- Make "no mapping" warning more user-friendly: add device name and mention
    that it's IRQ mapping
- Do not overlap ICUs' IO window with PCI devices' IO windows by starting
    IO rman at offset 0x100
2013-08-27 01:40:13 +00:00
Oleksandr Tymoshenko
c9735f9537 - Initialize freq variable so we will not end up with random value
if there is no YAMON present
2013-08-27 01:08:55 +00:00
Sean Bruno
de1eecea8c Some vendors store the mac addresses of arge(4) as a literal sring in the
form xx:xx:xx:xx:xx:xx complete with ":" characters taking of 18 bytes
instead of 6 integers.  Expose a "readascii" tuneable to handle this case.

Remove restriction on eepromac assignement for the first dev instance only.

Add eepromac address for DIR-825 to hints file.

Add readascii hint for DIR-825

Reviewed by:	adrian@
2013-08-23 13:14:18 +00:00
Konstantin Belousov
e68c64f0ba Revert r254501. Instead, reuse the type stability of the struct pmap
which is the part of struct vmspace, allocated from UMA_ZONE_NOFREE
zone.  Initialize the pmap lock in the vmspace zone init function, and
remove pmap lock initialization and destruction from pmap_pinit() and
pmap_release().

Suggested and reviewed by:	alc (previous version)
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
2013-08-22 18:12:24 +00:00
Adrian Chadd
d52d5066e7 Add a missing break. 2013-08-12 00:38:47 +00:00
Attilio Rao
c7aebda8a1 The soft and hard busy mechanism rely on the vm object lock to work.
Unify the 2 concept into a real, minimal, sxlock where the shared
acquisition represent the soft busy and the exclusive acquisition
represent the hard busy.
The old VPO_WANTED mechanism becames the hard-path for this new lock
and it becomes per-page rather than per-object.
The vm_object lock becames an interlock for this functionality:
it can be held in both read or write mode.
However, if the vm_object lock is held in read mode while acquiring
or releasing the busy state, the thread owner cannot make any
assumption on the busy state unless it is also busying it.

Also:
- Add a new flag to directly shared busy pages while vm_page_alloc
  and vm_page_grab are being executed.  This will be very helpful
  once these functions happen under a read object lock.
- Move the swapping sleep into its own per-object flag

The KPI is heavilly changed this is why the version is bumped.
It is very likely that some VM ports users will need to change
their own code.

Sponsored by:	EMC / Isilon storage division
Discussed with:	alc
Reviewed by:	jeff, kib
Tested by:	gavin, bapt (older version)
Tested by:	pho, scottl
2013-08-09 11:11:11 +00:00
Jeff Roberson
5df87b21d3 Replace kernel virtual address space allocation with vmem. This provides
transparent layering and better fragmentation.

 - Normalize functions that allocate memory to use kmem_*
 - Those that allocate address space are named kva_*
 - Those that operate on maps are named kmap_*
 - Implement recursive allocation handling for kmem_arena in vmem.

Reviewed by:	alc
Tested by:	pho
Sponsored by:	EMC / Isilon Storage Division
2013-08-07 06:21:20 +00:00
David E. O'Brien
0e6a0799a9 Back out r253779 & r253786. 2013-07-31 17:21:18 +00:00
Sean Bruno
969eca8b4a Adjust magic numbers to allow attachment of ath(4) modules. 2013-07-31 16:27:56 +00:00
Sean Bruno
d439f5d933 device if_bridge gets me a bridge device 2013-07-31 16:26:34 +00:00
David E. O'Brien
99ff83da74 Decouple yarrow from random(4) device.
* Make Yarrow an optional kernel component -- enabled by "YARROW_RNG" option.
  The files sha2.c, hash.c, randomdev_soft.c and yarrow.c comprise yarrow.

* random(4) device doesn't really depend on rijndael-*.  Yarrow, however, does.

* Add random_adaptors.[ch] which is basically a store of random_adaptor's.
  random_adaptor is basically an adapter that plugs in to random(4).
  random_adaptor can only be plugged in to random(4) very early in bootup.
  Unplugging random_adaptor from random(4) is not supported, and is probably a
  bad idea anyway, due to potential loss of entropy pools.
  We currently have 3 random_adaptors:
  + yarrow
  + rdrand (ivy.c)
  + nehemeiah

* Remove platform dependent logic from probe.c, and move it into
  corresponding registration routines of each random_adaptor provider.
  probe.c doesn't do anything other than picking a specific random_adaptor
  from a list of registered ones.

* If the kernel doesn't have any random_adaptor adapters present then the
  creation of /dev/random is postponed until next random_adaptor is kldload'ed.

* Fix randomdev_soft.c to refer to its own random_adaptor, instead of a
  system wide one.

Submitted by: arthurmesh@gmail.com, obrien
Obtained from: Juniper Networks
Reviewed by: obrien
2013-07-29 20:26:27 +00:00
Andriy Gapon
a29cc9a34b Revert r253748,253749
This WIP should not have been committed yet.

Pointyhat to:	avg
2013-07-28 18:44:17 +00:00
Andriy Gapon
366d8bfb7b put contents of cpu.h under _KERNEL
no userland-serviceable parts inside

MFC after:	20 days
2013-07-28 18:32:27 +00:00
Warner Losh
2018efd098 This file isn't derived from anything delivered by Berkeley, so remove
this statement.
2013-07-22 03:55:15 +00:00
Adrian Chadd
f5937ee8e6 Add some initial board support for the AR934x and the Qualcomm Atheros
DB120 development board.

The AR934x SoCs are a MIPS74k based system with increased RAM addressing
space, some scratch-pad RAM, an improved gige switch PHY and 2x2 or 3x3
on-board dual-band wifi.

This support isn't complete by any stretch; it's just enough to bring
the board up for others to tinker with.  Notably, the MIPS74k support
is broken.  However it boots enough to echo some basic probe/attach
messages, before dying somewhere in the TLB code.

Thankyou to Qualcomm Atheros for their continued support of me doing
open source work with their hardware.

Tested:

* AR9344, mips74k
2013-07-21 04:00:48 +00:00
Adrian Chadd
ea5f837ece Implement some initial AR934x support routines.
This code reads the PLL configuration registers and correctly programs
things so the UART and such can come up.

There's MIPS74k platform issues that need fixing; but this at least brings
things up enough to echo stuff out the serial port and allow for interactive
debugging with ddb.

Tested:

* AR71xx SoCs
* AR933x SoC
* AR9344 board (DB120)

Obtained from:	Qualcomm Atheros; Linux/OpenWRT
2013-07-21 03:56:57 +00:00
Adrian Chadd
9cf72c2c22 Teach the GPIO code about the AR934x GPIO register and pin counts. 2013-07-21 03:55:18 +00:00
Adrian Chadd
ced43d8890 Use the UART frequency when programming the UART clock.
This allows the 16550 support to work correctly on the upcoming
AR934x support.
2013-07-21 03:54:39 +00:00
Adrian Chadd
6dbf63db67 Initialise the watchdog and UART frequencies.
For all pre-AR933x chips, the frequency is just the APB frequency.
For the AR933x, the UART frequency is different but we just hacked around
it.

For the AR934x, there's a different PLL setting for these, so they have
to be broken out.
2013-07-21 03:52:52 +00:00
Adrian Chadd
766c980a8b Add two new CPU specific definitions - the watchdog clock frequency and
the UART clock frequency.

The AR933x and AR934x have separate PLL settings for these.
2013-07-21 03:51:24 +00:00
Andrey V. Elsukov
dbd4437b06 Include sys/systm.h after sys/param.h.
Suggested by:	pluknet
2013-07-15 15:40:57 +00:00
Andrey V. Elsukov
05d1f5bce0 Introduce new structure sfstat for collecting sendfile's statistics
and remove corresponding fields from struct mbstat. Use PCPU counters
and SFSTAT_INC() macro for update these statistics.

Discussed with:	glebius
2013-07-15 06:16:57 +00:00
Warner Losh
5163701c22 Nearly a complete rewrite of elf.h.
Start with NetBSD's sys/arch/mips/include/elf_machdep.h 1.18. Remove the NetBSD
specific glue pieces (leaving mostly just relocation types).

Add in FreeBSD specific glue pieces from older versions of this file, and
move to the top of the file:
r237430 | kib | 2012-06-22 00:38:31 -0600 (Fri, 22 Jun 2012) | 5 lines
r232449 | jmallett | 2012-03-03 01:19:18 -0700 (Sat, 03 Mar 2012) | 18 lines
r217097 | kib | 2011-01-07 07:22:34 -0700 (Fri, 07 Jan 2011) | 3 lines
r211412 | kib | 2010-08-17 02:55:45 -0600 (Tue, 17 Aug 2010) | 7 lines
r202908 | gonzo | 2010-01-23 19:59:22 -0700 (Sat, 23 Jan 2010) | 4 lines
r195356 | imp | 2009-07-05 01:00:51 -0600 (Sun, 05 Jul 2009) | 6 lines
r195128 | gonzo | 2009-06-27 17:27:41 -0600 (Sat, 27 Jun 2009) | 4 lines
r197933 | kib | 2009-10-10 09:31:24 -0600 (Sat, 10 Oct 2009) | 9 lines
r189926 | kib | 2009-03-17 06:50:16 -0600 (Tue, 17 Mar 2009) | 9 lines
r186191 | imp | 2008-12-16 13:07:47 -0700 (Tue, 16 Dec 2008) | 7 lines
as closely as I can tell, the projects/mips branch merge was disruptive
to good history.

This should make merges easier in the future from NetBSD and vice versa.
2013-07-09 19:01:38 +00:00
Adrian Chadd
93286afa73 Import the initial SoC register definitions for the AR934x MIPS74k SoC.
Obtained from:	Linux/OpenWRT
2013-07-08 06:12:38 +00:00
Adrian Chadd
4178f27320 Add AR9341, AR9342, AR9344 SoC types. 2013-07-08 06:10:29 +00:00
Warner Losh
8d77cd5069 Remove all the NOPs after SYNC. They aren't needed.
They originated in the original Octeon port. They weren't present, as
far as I can tell, on the projects/mips branch until after this
point. They were in the original Octeon port in code picked up from
the vendor, who I've been able to find out trolling old email put them
there to get around an SMP problem that most likely was fixed in other
ways.

NetBSD and Linux don't have these, except for some specific uses of
SYNC on the alchemy parts (which we don't support, but even if we did
it is only a specific case and would be specifically coded
anyway). This is true of the current Linux code, as well as one old
version I polled.

I looked back at the old R12000, R8000, R6000, R4000, R4400 errata
that I have, and could find no mention of SYNC needing NOPs for
silicon bugs (although plenty of other cases where NOPs and other
contortions were needed).

An Google search turned up no old mailing list discussions on this on
Linux, NetBSD or FreeBSD (except the disussion that kicked off these
studies).

I've test booted this on my Octeon Plus eval board and survived a
buildworld. Adrian Chadd reports that this patch has no ill effects on
the Ahteros platforms he tested it on.

I conclude it is safe to just remove the NOPs. But added
__MIPS_PLATFORM_SYNC_NOPS as a failsafe in case we find some platform
where these are, in fact, required.

Reviewed by:	adrian@
2013-07-07 16:12:22 +00:00
Adrian Chadd
e243f3cef2 Oops - fix bad hint numbering for the ART section. 2013-07-04 08:42:20 +00:00
Adrian Chadd
eb12447d83 Add in a configuration file and hints for the Engenius ENH-200.
This is an AR7240 based device with an AR9285 on-board.

I've tested the initial boot and wifi support; however at the moment
the ethernet switch driver doesn't seem to be picking up carrier on the
active ethernet port. Basic flood pinging works however, so I think
we're on the right track.

Thank you to Adrian Woodley <adrian@diskworld.com.au> for purchasing me
one of these devices to bootstrap FreeBSD-HEAD on.
2013-07-04 08:13:14 +00:00
Adrian Chadd
eaa0f58f05 Add the missing link back to the EEPROM firmware name. 2013-07-04 08:09:54 +00:00
Konstantin Belousov
70a7dd5d5b Fix issues with zeroing and fetching the counters, on x86 and ppc64.
Issues were noted by Bruce Evans and are present on all architectures.

On i386, a counter fetch should use atomic read of 64bit value,
otherwise carry from the increment on other CPU could be lost for the
given fetch, making error of 2^32.  If 64bit read (cmpxchg8b) is not
available on the machine, it cannot be SMP and it is enough to disable
preemption around read to avoid the split read.

On x86 the counter increment is not atomic on purpose, which makes it
possible for the store of the incremented result to override just
zeroed per-cpu slot.  The effect would be a counter going off by
arbitrary value after zeroing.  Perform the counter zeroing on the
same processor which does the increments, making the operations
mutually exclusive.  On i386, same as for the fetching, if the
cmpxchg8b is not available, machine is not SMP and we disable
preemption for zeroing.

PowerPC64 is treated the same as amd64.

For other architectures, the changes made to allow the compilation to
succeed, without fixing the issues with zeroing or fetching.  It
should be possible to handle them by using the 64bit loads and stores
atomic WRT preemption (assuming the architectures also converted from
using critical sections to proper asm).  If architecture does not
provide the facility, using global (spin) mutex would be non-optimal
but working solution.

Noted by:  bde
Sponsored by:	The FreeBSD Foundation
2013-07-01 02:48:27 +00:00
Adrian Chadd
0cfc028fcb Add the EEPROM start offset and size in so ath_ahb will use the
supplied EEPROM data.

This needs to die in a fire and replaced with the firmware API
to store the calibration data early ..
2013-06-26 05:03:47 +00:00
Adrian Chadd
5dbf20a630 Add in the vendor / device id so the ath_ahb glue works. 2013-06-26 05:02:47 +00:00
Adrian Chadd
46b620a1aa Add the wireless support to the AR933x base kernel, as the support
actually works now.
2013-06-26 05:02:30 +00:00
Ed Schouten
72790363a3 Make support for atomics on ARM complete.
Provide both __sync_*-style and __atomic_*-style functions that perform
the atomic operations on ARMv5 by using Restartable Atomic Sequences.

While there, clean up some pieces of code where it's sufficient to use
regular uint32_t to store register contents and don't need full reg_t's.
Also sync this back to the MIPS code.
2013-06-15 08:15:22 +00:00
Jeff Roberson
17a2737732 - Add a BIT_FFS() macro and use it to replace cpusetffs_obj()
Discussed with:	attilio
Sponsored by:	EMC / Isilon Storage Division
2013-06-13 20:46:03 +00:00
Ed Schouten
f5c2e46822 Bring the stdatomic for MIPS code slightly more in sync with the ARM version. 2013-06-13 18:47:28 +00:00
Ed Schouten
2c482d3a72 Merge the 1 and 2 byte versions of the atomic functions into one.
After pushing in my fix for the 2 byte functions, I realized that the
functions for 1 and 2 byte operations had become identical. Reduce the
code size by merging the functions for 1 and 2 byte operations together.

While there, slightly improve variable naming and comments.
2013-06-08 23:45:11 +00:00
Adrian Chadd
82aa6e614b Add 8devices CARAMBOLA2 support.
This is based on the AR933x (Hornet) SoC from Qualcomm Atheros.

It's a much nicer board to do development on - 64MB RAM, 16MB flash.
The development board breaks out the GPIO pins, ethernet, serial (via
a USB<->RS232 chip), USB host and of course a small wifi antenna.

Everything but the wifi works thus far.
2013-06-08 20:21:17 +00:00
Ed Schouten
87dd390211 Actually make the 2-byte atomics work.
Even though I tested the 1-byte operations on arbitrarily aligned bytes,
it seems I did not do this for the 2-byte operations.

Create easy to read functions that are used to get/put bytes and
halfwords in words. To keep the compiler happy, explicitly read two
bytes into a union to obtain a 16-bit value.
2013-06-08 16:24:49 +00:00
Ed Schouten
2e5d5dc936 Add proper __sync_*() intrinsics for MIPS.
To make <stdatomic.h> work on MIPS (and ARM) using GCC, we need to
provide implementations of the __sync_*() functions. I already added
these functions for 4 and 8 byte types to libcompiler-rt some time ago,
based on top of <machine/atomic.h>.

Unfortunately, <machine/atomic.h> only provides a subset of the features
needed to implement <stdatomic.h>. This means that in some cases we had
to do compare-and-exchange calls in loops, where a simple ll/sc would
suffice.

Also implement these functions for 1 and 2 byte types. MIPS only
provides ll/sc instructions for 4 and 8 byte types, but this is of
course no limitation. We can simply load 4 bytes and use some bitmask
tricks to modify only the bytes affected.

Discussed on:	mips, arch
Tested with:	QEMU
2013-06-08 13:19:11 +00:00
Marcel Moolenaar
cd9046df11 Don't assign the copyright to the FreeBSD foundation for the years
this file is in FreeBSD. There's formality to this that hasn't
happened and Juniper is perfectly fine with being the holder.

Discussed with: eadler, imp, jhb
2013-05-29 16:51:03 +00:00
Marcel Moolenaar
459ccd1680 Change the copyright notice to a standard BSD 2-clause license and assign
ownership to the FreeBSD foundation for the years this file has been in
the FreeBSD repository.

This file was originally created by Juniper as part of upgrading to FreeBSD
4.10 (which had no MIPS support) and held functions found on other machines
It grew actual functionality over time. The functionaliy was copied from
other architectures and ported to MIPS on a as-needed basis.

Approved by:	Mark Baushke (Juniper IP)
Approved by:	Megan Sugiyama (Juniper legal)
Pointed out by:	jmallett@
Requested by:	core (jhb@)
2013-05-23 19:47:37 +00:00
Attilio Rao
9af6d512f5 o Relax locking assertions for vm_page_find_least()
o Relax locking assertions for pmap_enter_object() and add them also
  to architectures that currently don't have any
o Introduce VM_OBJECT_LOCK_DOWNGRADE() which is basically a downgrade
  operation on the per-object rwlock
o Use all the mechanisms above to make vm_map_pmap_enter() to work
  mostl of the times only with readlocks.

Sponsored by:	EMC / Isilon storage division
Reviewed by:	alc
2013-05-21 20:38:19 +00:00
Eitan Adler
a164074fc4 Fix several typos
PR:		kern/176054
Submitted by:	Christoph Mallon <christoph.mallon@gmx.de>
MFC after:	3 days
2013-05-12 16:43:26 +00:00
Peter Wemm
dda759d344 Tidy up some CVS workarounds. 2013-05-12 01:53:47 +00:00
Warner Losh
656e9198b3 Add commented out OCTEON_VENDOR_GEFES 2013-05-10 03:05:44 +00:00
Bjoern A. Zeeb
08eaffd830 MFp4 CH=227440:
Convert the structures to C99 style initialisation, which makes it
  a lot easier to check that all of them are set and to generate a
  derived template from them.

Sponsored by:	DARPA, AFRL
MFC after:	2 weeks
2013-05-09 20:13:43 +00:00
Adrian Chadd
7536215f31 Add some missing arge MDIO hints.
Submitted by:	Luiz Otavio O Souza <loos.br@gmail.com>
2013-05-09 19:37:00 +00:00
Adrian Chadd
a858494b9d Modify the routerstation config to use ukswitch for now.
Until an ADM6996 driver shows up, this allows for the two switch
ports to be used.

Submitted by:	Luiz Otavio O Souza <loos.br@gmail.com>
Reviewed by:	ray
2013-05-08 20:57:37 +00:00
Attilio Rao
941646f5ec Rename VM_NDOMAIN into MAXMEMDOM and move it into machine/param.h in
order to match the MAXCPU concept.  The change should also be useful
for consolidation and consistency.

Sponsored by:	EMC / Isilon storage division
Obtained from:	jeff
Reviewed by:	alc
2013-05-07 22:46:24 +00:00
Warner Losh
57f37a2584 Use cvmx_mgmt_port_num_ports() instead of the inlined copy of a
previous version of this function.
2013-05-02 19:47:36 +00:00
Adrian Chadd
3d774cfd09 Add the AR933x SoC GPIO pin count limitation. 2013-05-02 00:40:45 +00:00
Warner Losh
0221919922 Don't include asm.h in non-asm files.
Remove #define to get kludges that asm.h used to define
Move clever macros to access assembler instructions to trap.c
Remove __ASSEMBLER__ ifdefs in regdef.h: they aren't needed anymore.
2013-05-01 06:57:46 +00:00
Warner Losh
524ceef723 Remove asm.h dependency in a hackish way.
Fixed comment.
2013-05-01 06:55:13 +00:00
Warner Losh
f0b11fbab2 Import NetBSD's version, which is perfectly fine.
Submitted by:	jmallet@
2013-05-01 06:22:50 +00:00
Warner Losh
ba85e9beec Add the standard #ifdef header protection. 2013-05-01 05:48:32 +00:00
Warner Losh
ef5223fdca Import virgin regdef.h from 4.4 Lite 2's sys/pmax/include/regdef.h,
expand the %sccs.include.redist.c% directive with the standard
3-clause license, and add $FreeBSD$ to keep the commit script happy.

# This may break some mips stuff, which will be fixed in the next commit.
2013-05-01 05:46:54 +00:00
Warner Losh
8e015fd886 Octeon 2 (6xxx) and newer CPUs don't use the clock CPU speed for its
I/O clock. Thankfully, the simple executive provies a way to querry
the proper clock that works on all models. Move to asking for the SCLK
via this interface.

This gets the serial console working after we start init and open the
console and set the divisor (which turned the output from good to
bad). I can login on the console now.
2013-04-26 05:42:35 +00:00
Warner Losh
0acf27956c Minor whitespace nit 2013-04-25 17:27:13 +00:00
Warner Losh
a16c54dec9 Use the offsets from pcb.h rather than regnum.h to store the registers
in the pcb. setjmp/longjmp in the kernel also used these values, so
continue to use them although their use isn't technically the pcb
register array (matching is all that's important for setjmp/longjmp in
the kernel). Finally, eliminate the old register names from regnum.h.

This is a lexical change only. The non-debug .o files have the same md5.
2013-04-25 17:23:54 +00:00
Warner Losh
5b1402e5e8 Make it possible to include this file in assembler .S sources. 2013-04-25 06:29:23 +00:00
Warner Losh
369149e740 Use the defines from pcb.h over the ones from regnum.h for this 'C'
code. In theory, the ones from regnum.h should be used only for
assembler code.
2013-04-25 06:28:19 +00:00
Warner Losh
3a74eaf28f Fix N32/N64 ABIs to use proper registers after recent changes.
Pointy Hat to: imp
2013-04-24 18:00:28 +00:00
Warner Losh
f97ccd1a35 Update trapframe to be consistent with the changes made to regnum.h. This
should fix the booting problems people have been seeing.
2013-04-23 09:38:18 +00:00
Brooks Davis
2d60c24f70 MFP4 223084, 227821:
Partially implement generic_bs_*_8() for MIPS platforms.

This is known to work with TARGET_ARCH=mips64 with FreeBSD/BERI.
Assuming that other definitions in cpufunc.h are correct it will
work on non-o64 ABI systems except sibyte. On sibyte and o32 systems
generic_bs_*_8() will remain panic() implementations.

Sponsored by:	DARPA, AFRL
Reviewed by:	imp, jmallett (older versions)
2013-04-22 19:02:37 +00:00
Adrian Chadd
d22e3b024e Add the static kernel boot environment, needed to actually boot this thing.
(Wasting 4k just as a temporary placeholder for a boot environment seems
a bit ridiculous, but hey.)

Tested: gxemul:

$ gxemul -e malta -d i:/home/adrian/work/freebsd/svn/mfsroot-rspro.img -C 4Kc /tftpboot/kernel.MALTA
2013-04-17 18:26:01 +00:00
Warner Losh
dd65664bbc Point to regdef.h. May need to dig up references to the N32 standard
that support this usage (which may be a bit rough, since different
parts of the standard say mutually contradictory things).
2013-04-16 16:54:37 +00:00
Warner Losh
e4be3d3ddd Fix N32/N64 register saving by ensuring that all registers resolve
to unique values.

There's some confusion about what the n32 assembler API really is
(since on page 9 of the spec they say that t0-t3 don't exist, then
turn around on page 22 and say that t4-t7 don't exist), and this
doesn't touch that.

NetBSD's version of this file follows the convention I used here, and
is likely to be correct.

This should fix gdb/ptrace.
2013-04-15 19:32:14 +00:00
Dimitry Andric
27e644a80b Fix undefined behaviour in several gpio_pin_setflags() routines (under
sys/arm and sys/mips), squelching the clang 3.3 warnings about this.

Noticed by:	tinderbox and many irate spectators
Submitted by:	Luiz Otavio O Souza <loos.br@gmail.com>
PR:		kern/177759
MFC after:	3 days
2013-04-13 21:21:13 +00:00
Jayachandran C.
0f6d5fdb54 Move MIPS_MAX_TLB_ENTRIES definition from cpuregs.h to tlb.c
Having MIPS_MAX_TLB_ENTRIES defined to 128 is misleading, since it used
to be 64 in older releases of MIPS architecture (where it could be read
from Config1) and can be much more than 128 for the newer processors.

For now, move the definition to the only file using it (mips/mips/tlb.c)
and define MIPS_MAX_TLB_ENTRIES depending on the MIPS cpu defined. Also
add few checks so that we do not write beyond the end of the tlb_state
array.

This fixes a kernel data corruption seen in Netlogic XLP, which was casued
by tlb_save() writing beyond the end of tlb_state array when breaking into
debugger.
2013-04-12 17:22:12 +00:00
Jayachandran C.
d1a51785b3 Fix incorrect KASSERTs in xlpge
Fix for crash in Netlogic XLP network accelerator driver when invariants
are enabled - use correct the condition for KASSERT.
2013-04-12 16:03:22 +00:00
Gleb Smirnoff
4e76af6a41 Merge from projects/counters: counter(9).
Introduce counter(9) API, that implements fast and raceless counters,
provided (but not limited to) for gathering of statistical data.

See http://lists.freebsd.org/pipermail/freebsd-arch/2013-April/014204.html
for more details.

In collaboration with:	kib
Reviewed by:		luigi
Tested by:		ae, ray
Sponsored by:		Nginx, Inc.
2013-04-08 19:40:53 +00:00
Gleb Smirnoff
17dece86fe Merge from projects/counters:
Pad struct pcpu so that its size is denominator of PAGE_SIZE. This
is done to reduce memory waste in UMA_PCPU_ZONE zones.

Sponsored by:	Nginx, Inc.
2013-04-08 19:19:10 +00:00
Adrian Chadd
f98a5a9e9c Add the basic GPIO pin mapping to the hints file.
Tested:

* AP121 board, tested USB/jumpstart LEDs
2013-04-05 02:15:10 +00:00
Adrian Chadd
57735bb975 Implement USB device reset and poweron.
Tested:

* Atheros AP131, AR9331 SoC
2013-04-05 02:02:37 +00:00
Adrian Chadd
31e738eea3 Fix AR933x USB support - this needs the same controller initialisation
as the AR7242.

Tested:

* Atheros AP121, AR9331
* ZyDas wifi device, and 64MB (yes, ew) USB flash storage
2013-04-05 02:01:05 +00:00
Adrian Chadd
0d788ee602 Add AP121 ethernet / switch PHY support.
* arge0 is MII
* arge1 is GMII
* the MDIO bus is on arge1, not arge0
* the default switch config is to have ports 0-3 as the switch group,
  with port 4 being an external PHY dedicated to arge0 (ie, 'cpu' port.)

Whilst I'm here, remove unused bits and pieces from the config.

Tested:

* AP121, ping on both arge0 and arge1
* Tested switch port detection using etherswitchcfg
2013-04-05 01:38:13 +00:00
Adrian Chadd
a4c9f7fdbd Implement the AR933x ethernet support.
Obtained from:	OpenWRT
2013-04-05 01:35:59 +00:00
Adrian Chadd
345d8465a5 Now that interrupt driven uart IO is working, flip this back on. 2013-04-05 00:26:29 +00:00
Adrian Chadd
5ccb3bf6af Implement the AR933x interrupt driven UART code.
* Enable RX and host interrupts during bus probe/attach
* Disable all interrupts (+ host ISR) during bus detach
* Enable TX DONE interrupt only when we start transmitting; clear it when
  we're done.
* The RX/TX FIFO depth is still conjecture on my part.  I'll fix this
  shortly.
* The TX FIFO interrupt isn't an "empty" interrupt, it's an "almost empty"
  interrupt.  Sigh.  So..
* .. in ar933x_bus_transmit(), wait for the FIFO to drain before
  continuing.

I dislike having to wait for the FIFO to drain, alas.

Tested:

* Atheros AP121 board, AR9331 SoC.

TODO:

* RX/TX overflow, RX error, BREAK support, etc.
* Figure out the true RX/TX FIFO depth.
2013-04-05 00:26:06 +00:00
Adrian Chadd
0580abc578 AR9330/AR9331 also needs to ACK the APB interrupt register, same as
AR724x.

This fixes 'stuck interrupt' problems I was having when writing the
uart interrupt code.
2013-04-05 00:22:53 +00:00
Adrian Chadd
9db1d995c5 * Add AR9330/AR9331 to the soc identifier enum;
* Set it when probing the CPU type.
2013-04-05 00:22:17 +00:00
Adrian Chadd
573a9a7743 Use geom_uncompress here; we need this to fit in a 4MB flash part. 2013-04-05 00:21:17 +00:00
Adrian Chadd
ae0ac787f2 Implement AR933x polled IO uart bus code.
This implements the bus transmit/receive/sigchg/ipend methods with
a polled interrupt handler (ipend) rather than enabling hardware
interrupts.

The FIFO is faked at 16 bytes deep for now, just so the transmit
IO side doesn't suck too bad (the callout frequency limits how quickly
IO is flushed to the sender, rather than scheduling the callout more
frequently whilst there's active TX.  But I digress.)

Tested:

* Atheros AP121 (AR9330) reference board, booting to multi-user interactive
  mode.
2013-04-04 10:46:33 +00:00
Alexander Motin
45f6d66569 Remove all legacy ATA code parts, not used since options ATA_CAM enabled in
most kernels before FreeBSD 9.0.  Remove such modules and respective kernel
options: atadisk, ataraid, atapicd, atapifd, atapist, atapicam.  Remove the
atacontrol utility and some man pages.  Remove useless now options ATA_CAM.

No objections:	current@, stable@
MFC after:	never
2013-04-04 07:12:24 +00:00
Ian Lepore
4d7abca057 Fix low-level uart drivers that set their fifo sizes in the softc too late.
uart(4) allocates send and receiver buffers in attach() before it calls
the low-level driver's attach routine.  Many low-level drivers set the
fifo sizes in their attach routine, which is too late.  Other drivers set
them in the probe() routine, so that they're available when uart(4)
allocates buffers.  This fixes the ones that were setting the values too
late by moving the code to probe().
2013-04-01 00:44:20 +00:00
Adrian Chadd
a296efdeeb AR933x CPU device improvements:
* Add baud rate and divisor programming code. See below for more
  information.

* Flesh out ar933x_init() to disable interrupts and program the initial
  console setup.

* Remove #if 0'ed code from ar933x_term().

* Explain what these functions do.

Now, the baud rate and divisor code comes from Linux, as a submission
to the OpenWRT project and Linux kernel from
Gabor Juhos <juhosg@openwrt.org>.

The original ticket for this code is https://dev.openwrt.org/ticket/12031 .

I've contacted Gabor and asked for his permission to also licence the patch
in question (which covers this code) to BSD lience and he's agreed.
Hence why I'm including it here in FreeBSD.

Tested:

* AP121 (AR9330)
2013-03-30 04:31:29 +00:00
Adrian Chadd
8eeea2945d AR933x UART updates:
* Default clock is 25MHz;
* Remove the UART register macro here - it's not needed as we don't need
  to "adjust" the register offset / spacing at all;
* Remove unused fields in the softc.

Tested:

* AP121
2013-03-30 04:13:47 +00:00
Adrian Chadd
033891b29d Disable this; it's a local option that I haven't yet committed to -HEAD. 2013-03-29 20:07:51 +00:00
Adrian Chadd
10e00ec8cc For the AR933x UART, the serial clock is not the AHB clock, it's the
reference clock.  So use that instead.
2013-03-29 06:32:39 +00:00
Adrian Chadd
19f293bd60 * Fix clock register definitions
* Add maximum clock register values
2013-03-29 06:32:02 +00:00
Adrian Chadd
600f8cb57a Print out the platform reference frequency.
This is useful for AR933x platforms where that matters.
2013-03-29 06:31:31 +00:00
Adrian Chadd
43b36ea90a Initial (unfinished!) AR933x support. 2013-03-28 20:48:58 +00:00
Adrian Chadd
7d52c7525f Tie in the AR933x support into -HEAD. 2013-03-28 19:30:56 +00:00
Adrian Chadd
308a33172f Bring over the initial, CPU-only UART support for the AR933x SoC.
This implements the kernel glue needed (getc, putc, rxready).

This isn't a 16550 UART, even if the datasheet overview claims so.

The Linux ar933x support was used as a reference, however the uart code
is a reimplementation.

Attentive viewers will note that the uart code is based off of the ns8250
code and the UART bus code is a stubbed-out version of this.  I'll be
replacing it with non-stubbed versions soon, making this a fully featured
driver.

Tested:

* AP121 reference board (AR933x), booting through the mountroot> prompt;
  then doing some basic interactive tests in ddb.
2013-03-28 19:27:06 +00:00
Adrian Chadd
09ac4e68f3 Fix the AR933x platform device start/stop code.
This was ported from the AR724x code and I think that also doesn't
quite work.  I'll investigate that soon.

With this in place the system reset path works, so 'reset' from kdb
actually resets the SoC.

Tested:

* AP121 test board
2013-03-28 05:43:03 +00:00
Adrian Chadd
601a83560e Commit initial (unfinished!) support for the AR933x series of embedded
CPUs.

The AR933x is a mips24k based SoC with an AR9380 series SoC on board,
two gigabit ethernet interfaces and an internal 10/100mbit ethernet
switch.  There's also the normal interfaces (USB, ethernet, uart, GPIO.)

The downside? There's a non-ns8250 UART device.

With a very basic UART driver (not in this commit) the SoC is initialised
and boots up.  I'll commit the UART code soon and then link it into the
general setup path.

This code is a re-implementation based from the Linux kernel / openwrt
AR933x support.

TODO:

* UART (obviously)
* All of the ethernet, USB and wifi SoC glue, including ethernet PLL
  programming.
2013-03-27 03:38:58 +00:00
Adrian Chadd
a4a1b49368 Add the reference clock for each supported chip.
Obtained from:	Linux (openwrt)
2013-03-27 03:33:19 +00:00
Konstantin Belousov
ee75e7de7b Implement the concept of the unmapped VMIO buffers, i.e. buffers which
do not map the b_pages pages into buffer_map KVA.  The use of the
unmapped buffers eliminate the need to perform TLB shootdown for
mapping on the buffer creation and reuse, greatly reducing the amount
of IPIs for shootdown on big-SMP machines and eliminating up to 25-30%
of the system time on i/o intensive workloads.

The unmapped buffer should be explicitely requested by the GB_UNMAPPED
flag by the consumer.  For unmapped buffer, no KVA reservation is
performed at all. The consumer might request unmapped buffer which
does have a KVA reserve, to manually map it without recursing into
buffer cache and blocking, with the GB_KVAALLOC flag.

When the mapped buffer is requested and unmapped buffer already
exists, the cache performs an upgrade, possibly reusing the KVA
reservation.

Unmapped buffer is translated into unmapped bio in g_vfs_strategy().
Unmapped bio carry a pointer to the vm_page_t array, offset and length
instead of the data pointer.  The provider which processes the bio
should explicitely specify a readiness to accept unmapped bio,
otherwise g_down geom thread performs the transient upgrade of the bio
request by mapping the pages into the new bio_transient_map KVA
submap.

The bio_transient_map submap claims up to 10% of the buffer map, and
the total buffer_map + bio_transient_map KVA usage stays the
same. Still, it could be manually tuned by kern.bio_transient_maxcnt
tunable, in the units of the transient mappings.  Eventually, the
bio_transient_map could be removed after all geom classes and drivers
can accept unmapped i/o requests.

Unmapped support can be turned off by the vfs.unmapped_buf_allowed
tunable, disabling which makes the buffer (or cluster) creation
requests to ignore GB_UNMAPPED and GB_KVAALLOC flags.  Unmapped
buffers are only enabled by default on the architectures where
pmap_copy_page() was implemented and tested.

In the rework, filesystem metadata is not the subject to maxbufspace
limit anymore. Since the metadata buffers are always mapped, the
buffers still have to fit into the buffer map, which provides a
reasonable (but practically unreachable) upper bound on it. The
non-metadata buffer allocations, both mapped and unmapped, is
accounted against maxbufspace, as before. Effectively, this means that
the maxbufspace is forced on mapped and unmapped buffers separately.
The pre-patch bufspace limiting code did not worked, because
buffer_map fragmentation does not allow the limit to be reached.

By Jeff Roberson request, the getnewbuf() function was split into
smaller single-purpose functions.

Sponsored by:	The FreeBSD Foundation
Discussed with:	jeff (previous version)
Tested by:	pho, scottl (previous version), jhb, bf
MFC after:	2 weeks
2013-03-19 14:13:12 +00:00
Konstantin Belousov
e8a4a618cf Add pmap function pmap_copy_pages(), which copies the content of the
pages around, taking array of vm_page_t both for source and
destination.  Starting offsets and total transfer size are specified.

The function implements optimal algorithm for copying using the
platform-specific optimizations.  For instance, on the architectures
were the direct map is available, no transient mappings are created,
for i386 the per-cpu ephemeral page frame is used.  The code was
typically borrowed from the pmap_copy_page() for the same
architecture.

Only i386/amd64, powerpc aim and arm/arm-v6 implementations were
tested at the time of commit. High-level code, not committed yet to
the tree, ensures that the use of the function is only allowed after
explicit enablement.

For sparc64, the existing code has known issues and a stab is added
instead, to allow the kernel linking.

Sponsored by:	The FreeBSD Foundation
Tested by:	pho (i386, amd64), scottl (amd64), ian (arm and arm-v6)
MFC after:	2 weeks
2013-03-14 20:18:12 +00:00
Attilio Rao
89f6b8632c Switch the vm_object mutex to be a rwlock. This will enable in the
future further optimizations where the vm_object lock will be held
in read mode most of the time the page cache resident pool of pages
are accessed for reading purposes.

The change is mostly mechanical but few notes are reported:
* The KPI changes as follow:
  - VM_OBJECT_LOCK() -> VM_OBJECT_WLOCK()
  - VM_OBJECT_TRYLOCK() -> VM_OBJECT_TRYWLOCK()
  - VM_OBJECT_UNLOCK() -> VM_OBJECT_WUNLOCK()
  - VM_OBJECT_LOCK_ASSERT(MA_OWNED) -> VM_OBJECT_ASSERT_WLOCKED()
    (in order to avoid visibility of implementation details)
  - The read-mode operations are added:
    VM_OBJECT_RLOCK(), VM_OBJECT_TRYRLOCK(), VM_OBJECT_RUNLOCK(),
    VM_OBJECT_ASSERT_RLOCKED(), VM_OBJECT_ASSERT_LOCKED()
* The vm/vm_pager.h namespace pollution avoidance (forcing requiring
  sys/mutex.h in consumers directly to cater its inlining functions
  using VM_OBJECT_LOCK()) imposes that all the vm/vm_pager.h
  consumers now must include also sys/rwlock.h.
* zfs requires a quite convoluted fix to include FreeBSD rwlocks into
  the compat layer because the name clash between FreeBSD and solaris
  versions must be avoided.
  At this purpose zfs redefines the vm_object locking functions
  directly, isolating the FreeBSD components in specific compat stubs.

The KPI results heavilly broken by this commit.  Thirdy part ports must
be updated accordingly (I can think off-hand of VirtualBox, for example).

Sponsored by:	EMC / Isilon storage division
Reviewed by:	jeff
Reviewed by:	pjd (ZFS specific review)
Discussed with:	alc
Tested by:	pho
2013-03-09 02:32:23 +00:00
Alexander Motin
fdc5dd2d2f MFcalloutng:
Switch eventtimers(9) from using struct bintime to sbintime_t.
Even before this not a single driver really supported full dynamic range of
struct bintime even in theory, not speaking about practical inexpediency.
This change legitimates the status quo and cleans up the code.
2013-02-28 13:46:03 +00:00
Attilio Rao
590f9303e5 Merge from vmobj-rwlock branch:
Remove unused inclusion of vm/vm_pager.h and vm/vnode_pager.h.

Sponsored by:	EMC / Isilon storage division
Tested by:	pho
Reviewed by:	alc
2013-02-26 01:00:11 +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
Pedro F. Giffuni
646a7fea0c Clean some 'svn:executable' properties in the tree.
Submitted by:	Christoph Mallon
MFC after:	3 days
2013-01-26 22:08:21 +00:00
Jayachandran C.
9f499cc5ae Little-endian and other fixes for Broadcom XLP network driver
The changes are:
 - the microcore code loaded into the NAE has to be byteswapped
   in LE
 - the descriptors in memory for a P2P NAE descriptor has to be
   byteswapped in LE
 - the m_data pointer is already cacheline aligned, so the
   unnecessary m_adj to cacheline size can be removed
 - fix mask used to obtain physical address from the Tx freeback
   descriptor
 - fix a compile error in code under #ifdef

Obtained from:	Venkatesh J V <venkatesh.vivekanandan@broadcom.com>
2013-01-24 15:49:47 +00:00
Jayachandran C.
d4aba0f611 Fix credit configuration on Broadcom XLP CMS
The CMS output queue credit configuration register is 64 bit, so use
a 64 bit variable while updating it.
Obtained from:	Venkatesh J V <venkatesh.vivekanandan@broadcom.com>
2013-01-24 15:23:01 +00:00
Jayachandran C.
0a82286445 Broadcom XLP network driver update for XLP 8xx B1 rev
Update MDIO reset code to support Broadcom XLP B1 revisions.
Update nlm_xlpge_ioctl, nlm_xlpge_port_enable need not be
called after nlm_xlpge_init.

Obtained from:	Venkatesh J V <venkatesh.vivekanandan@broadcom.com>
2013-01-24 15:14:22 +00:00
Jayachandran C.
a10ce85526 Minor updates to the Broadcom XLP NAE driver
Remove unnecessary SGMII initialization code from nae.c. While there
clean up some prints and whitespace.
2013-01-24 14:42:58 +00:00
Jayachandran C.
301b961c3e Broadcom XLP updates for the new firmware
Support few more versions of board firmware.  In case the security
block is disabled, enable it at boot. Also increase the excluded
memory region to cover the area used by the firmware to initialize
devices.
2013-01-24 14:33:25 +00:00
Jayachandran C.
d30a6b30fc Little-endian fix for PCI on Broadcom XLP.
Update the function xlp_pcib_hardware_swap_enable() to do nothing
when BYTE_ORDER is not BIG_ENDIAN. PCIe hardware swap is not requred
in little-endian mode as the endianness matches that of CPU.
2013-01-24 11:42:16 +00:00
Robert Watson
1aef4ac1bc Partially merge Perforce changeset 219938 to head:
Write FDT attachment for the Terasic MTL (multitouch LCD) driver.
  Exploit the fact that FDT allows multiple memory ranges to be
  assigned to a device, giving us a cleaner description than
  device.hints does.

Portions of this changeset that remove mtl from BERI device.hints and
add to DTS will be merged separately.

Sponsored by:	DARPA, AFRL
2013-01-13 16:27:56 +00:00
Robert Watson
c4b4976dee Merge Perforce changeset 219922 to head:
Update nexus parts in copied DE4LED attachment to use FDT.

Sponsored by:	DARPA, AFRL
2013-01-13 15:12:35 +00:00
Robert Watson
100bfa3f87 Merge Perforce changeset 219918 to head:
Naive first cut at an FDT bus attachment for the Altera JTAG UART.

Sponsored by:	DARPA, AFRL
2013-01-13 15:08:17 +00:00
Alan Cox
fa12b7f6e0 Define VM_KMEM_SIZE_MAX as a fraction of the kernel address space size
rather than a constant so that VM_KMEM_SIZE_MAX will scale automatically
with the kernel address space size.  This is particularly important for
MIPS because the same definition is used by both 32- and 64-bit kernels.

Tested by:	jchandra
2013-01-12 18:06:21 +00:00
Robert Watson
c36a1b5c66 Merge Perforce changeset 219925 to head:
Provided a bus_space implementation for FDT, modelled on
  bus_space_generic, but with a local version of the map address
  routine that does a P->V translation, as is the case with NLM's
  similar routine for XLP.  It's not clear to me that this is the
  right solution -- possibly this belongs in simplebus -- however,
  it is sufficient to get the DE4 LED driver working.

Sponsored by:	DARPA, AFRL
2013-01-12 15:58:20 +00:00
Robert Watson
0fe7f25666 Merge Perforce chance 219924 to head:
In a sign of weakness, replicate the MIPS bus_space_generic.c to
  produce a new FDT version, which will perform necessary address
  space translation for bus_space -- the solution used in NLM's MIPS
  FDT support, but possibly not quite the right thing.  This is
  inconsistent with regular I/O via the nexus and the generic
  bus_space, which instead perform translation via pmap_mapdev()
  when a resource is activated.  However, it will work while I
  attempt to identify what the right way to reconcile possible
  approaches.

  (Another approach might be to make simplebus use Nexus's activate
  routine instead of a generic one?)

Sponsored by:	DARPA, AFRL
2013-01-12 15:53:45 +00:00
Robert Watson
4d19b97f11 Merge Perforce change @219948 to head:
Add code so that the BERI boot process can ask the kernel linker for
  DTB blobs that may have been left for it by the boot loader, as done
  on PowerPC and ARM.  This will require both a more mature boot
  loader, and more mature boot loader argument passing mechanism,
  than currently supported on BERI.

Sponsored by:	DARPA, AFRL
2013-01-12 13:20:21 +00:00
Robert Watson
f73faab74b Merge Perforce change @219935 to head:
Initialise Openfirmware/FDT code earlier in the FreeBSD/beri boot,
  so that the results will be available for configuring the console
  UART (eventually).

  Suggested by:   thompsa

Sponsored by:	DARPA, AFRL
2013-01-12 12:34:59 +00:00
Monthadar Al Jaberi
3fbbb3be4f Mips Atheros AR71XX: make PCI base slot configurable through hints.
* Mikrotik RouterBoard 433AH have PCI slot 18 wired to INT0 on the PCI Bus.
  This is different from e.g. Atheros PB42 and Ubiquiti boards.
* Check for hint hint.pcib.0.baseslot=X, where X is number of base slot;
* If hint not supplied print a warning and use default AR71XX_PCI_BASE_SLOT;

PR:		kern/174978
Approved by:	adrian (mentor)
2013-01-06 20:50:31 +00:00
Juli Mallett
b29648facd Add basic support for the Ubiquiti EdgeRouter Lite.
Note that USB does not currently work, and the flash is connected via USB, so
local storage is not working.
2013-01-02 23:17:50 +00:00
Robert Watson
d8c7c88283 Merge @219932 from Perforce:
FDT headers can't be included if the kernel is compiled without
  FDT support, due to dependence on generated kobj headers.  BERI
  supports both FDT and non-FDT kernels.

  Spotted by:	bz
2013-01-01 19:42:06 +00:00
Robert Watson
9eb71e68fe If FDT is compiled into a FreeBSD/beri kernel, initialise OpenFirmware.
Sponsored by:	DARPA, AFRL
2012-12-31 11:06:37 +00:00
Alan Cox
c2c46ecd68 Eliminate some definitions that haven't been used in a decade or more. 2012-12-19 05:07:27 +00:00
Gleb Smirnoff
eb1b1807af Mechanically substitute flags from historic mbuf allocator with
malloc(9) flags within sys.

Exceptions:

- sys/contrib not touched
- sys/mbuf.h edited manually
2012-12-05 08:04:20 +00:00
Juli Mallett
85129b4bd4 Use bootverbose to control debug printfs from the Cavium Simple Executive
code.  Also remove an unnecessary CVMX_ENABLE_DEBUG_PRINTS conditional around
what is already a cvmx_dprintf.
2012-11-24 02:12:24 +00:00
Juli Mallett
01a310bd57 o) Add support for specifying a model of Octeon to target at compile-time,
reducing the number of runtime checks done by the SDK code.
o) Group board/CPU information at early startup by subject matter, so that e.g.
   CPU information is adjacent to CPU information and board information is
   adjacent to board information.
2012-11-24 02:00:29 +00:00
Juli Mallett
fcd5eed4f0 Prevent hang on ATCA-7220 when transmitting packets < 60 bytes. 2012-11-19 08:30:29 +00:00
Juli Mallett
d0ebf478da Remove redundant printf of SDK version which already appears earlier in boot. 2012-11-19 08:29:53 +00:00
Juli Mallett
8aff4e5fdd Add basic support for the Radisys-specific PCI console mechanism found on the
Radisys ATCA-7220.
2012-11-19 01:58:20 +00:00
Juli Mallett
8961aadb2b o) Do boot descriptor parsing before console setup so that we can use a console
other than UART 0 from the outset.
o) Print board information from sysinfo after consoles have been initialized
   rather than doing it during boot descriptor parsing.
o) Use cvmx_safe_printf and platform_reset rather than panic when doing very
   early boot descriptor parsing before the console is set up.
o) Get rid of the global octeon_bootinfo.
2012-11-19 00:19:27 +00:00
Juli Mallett
2d7499b141 Remove one wholly-unused and buggy routine and some nearby alternative symbols.
While here, also correct a comment that seems to imply that this file is
NetBSD's all-singing, all-dancing locore.S, rather than our conservative set of
assembly support routines.
2012-11-17 23:53:12 +00:00
Adrian Chadd
f447c9bf87 Ensure hwpmc support is correctly included. 2012-11-17 04:11:57 +00:00
Adrian Chadd
54491754cb Make MIPS24k PMC optional on "hwpmc_mips24k."
Requested by:	juli
2012-11-17 04:10:42 +00:00
Adrian Chadd
c612af968c Migrate the AR71xx UART (an 8250 derivative) to hide behind uart_ar71xx.
The AR9330/AR9331 UART is a totally different thing, so having it included
with 'uart' is not going to work out.
2012-11-17 04:05:46 +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
Alan Cox
6961891ea1 The function pmap_alloc_direct_page() unconditionally zeroes the returned
page.  Therefore, it is really inappropriate for use by the function
uma_small_alloc().  The effect of using it was that every page was zeroed
at least once and possibly twice if M_ZERO was passed as a "wait" flag.
2012-11-14 17:33:00 +00:00
Juli Mallett
36e83ea016 Add preliminary Octeon PCI console support. Radisys-specific PCI console
support may follow soon (it uses a proprietary memory layout, but operation
looks pretty trivial.)
2012-11-13 07:39:49 +00:00
Juli Mallett
43364eac2a Add some useful options to consider. 2012-11-13 07:34:46 +00:00
Adrian Chadd
f8eb8ef711 Update AP96 to directly attach an arswitch. 2012-11-07 23:50:28 +00:00
Aleksandr Rybalko
c11de6f059 Hint miibus to attach arswitch on AP91, AP93 and RSPRO boards.
Submitted by:	Luiz Otavio O Souza
Approved by:	adrian (menthor)
2012-11-07 22:46:30 +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
Adrian Chadd
6ff182d83d Drop this from 500 to 128, to save a little space on memory constrained
platforms.
2012-11-02 05:23:05 +00:00
Adrian Chadd
0fd5c74381 Free the dma map -after- it's checked, not before. Or you'll be
potentially referencing already-freed memory.
2012-11-02 05:22:32 +00:00
Juli Mallett
405b925e39 Don't disable PCIe just because the host is not a PCI host; the latter flag
only applies to non-PCIe systems.  If PCIe is in target mode, it will simply
and gracefully fail to attach of its own accord.
2012-11-01 20:39:39 +00:00
Juli Mallett
ca765bc7ab Fix longstanding misprint. 2012-10-31 04:44:32 +00:00
Juli Mallett
3ef3b736dc If the CF physical base is 0, attach no CF devices. This fixes a warning
about a 0 passed to cvmx_phys_to_ptr on systems without a CF interface,
such as the RSYS4GBE.
2012-10-31 04:23:36 +00:00
Juli Mallett
3631682eab Actually check board type rather than using a specialized octeon_is_simulation
function.
2012-10-30 06:36:14 +00:00
Juli Mallett
3fc2bc974b Remove oct_read64 and oct_write64 and use their equivalents from the Simple
Executive, which are used everywhere else in the Octeon port.  While here,
remove other unused things from octeon_pcmap_regs.h.
2012-10-30 06:29:17 +00:00
Juli Mallett
d1d2f57d4a Remove stale declarations. 2012-10-30 06:19:46 +00:00
Juli Mallett
684ba62e3f Speed feature tests and initialize helper configuration that some CPUs require. 2012-10-30 06:07:30 +00:00
Juli Mallett
0a5f2ecced Add a sysctl to change the LED display. 2012-10-29 07:06:23 +00:00
Juli Mallett
a1d1611d51 Wrap some long lines and display board serial numbers at boot. 2012-10-29 02:10:20 +00:00
Juli Mallett
1f51baaa92 Use Simple Executive LED display routines, which correctly use the LED base
address passed from the bootloader, rather than using a hard-coded value.

Make FreeBSD announce itself on the LED display similar to other kernels.

Remove uses of the previous LED routines, which were under-used and only used
in drivers for what seem like debugging purposes, despite those drivers being
widely-tested.

Remove several inlines for accessing memory that duplicate other functions
which are now used instead, as they are now entirely unused.
2012-10-29 00:51:53 +00:00
Juli Mallett
5eceedc5a0 Add missing return that broke 8-bit CF support in refactoring in r222671.
Tested on a Cavium CN5860-EVB-NIC4.  This was broken for over a year.
2012-10-27 23:36:41 +00:00
Alan Cox
e3978f3316 Eliminate a redundant TLB invalidation from pmap_pv_reclaim(). 2012-10-27 22:43:30 +00:00
Juli Mallett
320a9376e9 Add support for Radisys as a vendor of Octeon hardware. Add some preliminary
support for what their boot loader refers to as the "RSYS4GBE", of which there
are two instances ("Data Processing Blocks") on the Radisys ATCA-7220.
2012-10-26 00:08:50 +00:00
Juli Mallett
452f8dcf7b Don't attach if the bootloader has not indicated that we're a PCI host. This
fixes booting on systems which are PCI targets.
2012-10-26 00:04:05 +00:00
Andrew Thompson
a28dd512d3 Fix spelling of NFSCL option. 2012-10-23 22:58:25 +00:00
Warner Losh
4fa33efb6f Turns out the nvram env was common, so move it back up to get PB92 working. 2012-10-23 19:17:43 +00:00
Warner Losh
52c1230206 Add RT305x specific devices here. 2012-10-23 15:25:48 +00:00
Andre Oppermann
75e1bc999e Remove ZERO_COPY_SOCKETS from kernel configuration as the current
COW based approach is not safe and should not be used in production.
2012-10-22 15:04:23 +00:00
Eitan Adler
db702c59cf remove duplicate semicolons where possible.
Approved by:	cperciva
MFC after:	1 week
2012-10-22 03:00:37 +00:00
Attilio Rao
a42ac676f5 Disconnect non-MPSAFE NTFS from the build in preparation for dropping
GIANT from VFS. This code is particulary broken and fragile and other
in-kernel implementations around, found in other operating systems,
don't really seem clean and solid enough to be imported at all.
If someone wants to reconsider in-kernel NTFS implementation for
inclusion again, a fair effort for completely fixing and cleaning it
up is expected.

In the while NTFS regular users can use FUSE interface and ntfs-3g
port to work with their NTFS partitions.

This is not targeted for MFC.
2012-10-17 11:30:00 +00:00
Alan Cox
3bd3f63d50 Correct an error in pmap_pv_reclaim(). It can legitimately encounter
wired mappings.  If it does, it should just skip them.
2012-10-14 03:40:08 +00:00
Attilio Rao
3a4730256a Add an unified macro to deny ability from the compiler to reorder
instruction loads/stores at its will.
The macro __compiler_membar() is currently supported for both gcc and
clang, but kernel compilation will fail otherwise.

Reviewed by:	bde, kib
Discussed with:	dim, theraven
MFC after:	2 weeks
2012-10-09 14:32:30 +00:00
Alan Cox
312188ac4a Optimize the TLB invalidations performed by pmap_protect(). Use the new
range-based invalidation function instead of performing per-page
invalidations.  Don't bother invalidating mappings that don't have PTE_D
set, since they don't allow write access.
2012-10-07 18:07:45 +00:00
Alan Cox
4ed2e31f01 In general pmap implementations do not set the wired attribute on
the temporary mappings that are used to implement operations like
pmap_zero_page().  There is no reason for the MIPS pmap to deviate
from that practice.
2012-10-06 19:33:52 +00:00
Alan Cox
948aea4031 Correct two pessimizations in pmap_extract_and_hold(). Test the PTE for
having PTE_RO set instead of PTE_D.  This avoids some unnecessary failures
by pmap_extract_and_hold() that will have to be handled by a call to
vm_fault_hold().  Testing the PTE for both being non-zero and having PTE_V
set is redundant.  The latter suffices.
2012-10-06 19:05:50 +00:00
Alan Cox
d68ca35a82 Eliminate a stale and a duplicated comment. 2012-10-05 04:35:20 +00:00
Alan Cox
54f3305cca Reimplement pmap_qremove() using the new TLB invalidation function for
efficiently invalidating address ranges.
2012-10-03 05:42:15 +00:00
Alan Cox
9a974b9024 Introduce a new TLB invalidation function for efficiently invalidating
address ranges, and use this function in pmap_remove().

Tested by:	jchandra
2012-10-02 07:14:22 +00:00
Hans Petter Selasky
0324d54acb Inherit USB mode from RootHUB port where the USB device is connected.
Only RootHUB ports can be dual mode. Disallow OTG ports on external HUBs.
This simplifies some checks in the USB controller drivers.

MFC after:	1 week
2012-10-01 05:42:43 +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
Ed Schouten
7cbef24e1a Prefer __containerof() above member2struct().
The first does proper checking of the argument types, while the latter
does not.
2012-09-15 19:28:54 +00:00
Alan Cox
7336315b0a Simplify pmap_unmapdev(). Since kmem_free() eventually calls pmap_remove(),
pmap_unmapdev()'s own direct efforts to destroy the page table entries are
redundant, so eliminate them.

Don't set PTE_W on the page table entry in pmap_kenter{,_attr}() on MIPS.
Setting PTE_W on MIPS is inconsistent with the implementation of this
function on other architectures.  Moreover, PTE_W should not be set, unless
the pmap's wired mapping count is incremented, which pmap_kenter{,_attr}()
doesn't do.

MFC after:	10 days
2012-09-10 16:11:29 +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
Alan Cox
1c978ec48b pmap_remove:
Avoid re-walking the page table from the root for every PTE examined.

  Tidy up some of pmap_remove()'s helper functions.

pmap_enter:

  Set PV_TABLE_REF whenever the physical page being mapped is managed, not
  just when it is writeable.

  Only call pmap_update_page() when the old mapping was valid.  If there was
  no prior valid mapping, then pmap_update_page() serves no useful purpose.
  However, it will interrupt every processor that has the pmap active.

pmap_enter_quick_locked:

  Always set PTE_RO.

pmap_emulate_modified:

  Don't set PV_TABLE_REF.

  Eliminate a nonsensical comment.
2012-09-08 17:43:20 +00:00
Alan Cox
1fc6f326f3 Eliminate unnecessary NULL checks. 2012-09-07 06:12:28 +00:00
John Baldwin
30b5db9fea Dynamically allocate the S/G lists passed to callback routines rather than
allocating them on the stack of various bus_dmamap_load*() functions.  The
S/G lists are stored in the DMA tags.  This matches the implementation on
all other platforms.

Discussed with:	scottl, gibbs
Tested by:	stas (arm@)
2012-09-06 20:16:59 +00:00
Brooks Davis
df201b82d3 Don't hardcode paths to MFS_IMAGE in the kernel config. When they don't
exist they don't cause "make tinderbox" to fail.

Reported by:	jhb
2012-09-05 15:55:51 +00:00
Alan Cox
d8f9ed32c5 Rename {_,}pmap_unwire_pte_hold() to {_,}pmap_unwire_ptp() and update the
comment describing them.  Both the function names and the comment had grown
stale.  Quite some time has passed since these pmap implementations last
used the page's hold count to track the number of valid mapping within a
page table page.  Also, returning TRUE from pmap_unwire_ptp() rather than
_pmap_unwire_ptp() eliminates a few instructions from callers like
pmap_enter_quick_locked() where pmap_unwire_ptp()'s return value is used
directly by a conditional statement.
2012-09-05 06:02:54 +00:00
Alan Cox
9b94d9eaab Calculate the new PTE value in pmap_enter() before acquiring any locks.
Move an assertion to the beginning of pmap_enter().
2012-09-02 04:39:07 +00:00
Alan Cox
2d1f72d4b4 Introduce a new software PTE flag that indicates whether the mapping is
for a managed page.

Tested by:	jchandra
2012-09-01 03:46:28 +00:00
Adrian Chadd
c0bf0c307c The DIR-825 cal data is in an odd spot. I don't know why it's here.
(This works on my board because I wrote new caldata into this spot;
but this obviously won't work for stock DIR-825 units out there.)
2012-08-30 17:35:12 +00:00
Adrian Chadd
5a7bc717f0 More attempts at space saving.
* add cam as a module to build - but build in scbus/da for now, as
  "cam" as a module includes all cam devices. Hardly space saving.
* Don't build FFS snapshot support.
2012-08-29 22:58:52 +00:00
Adrian Chadd
f01591cccf Bring over a configuration for the Atheros AP91 reference board.
This has an AR7240 SoC with an AR9285 wireless NIC on-board.

Since the kernel partition on the 4MiB flash is 960KiB, quite a bit
is disabled to try and squeeze the build into that.  Even lzma'ed,
it's still quite large.
2012-08-29 01:08:36 +00:00
Adrian Chadd
1396b8ddd1 * Don't compile in sysctl descriptions
* random is fine as a module
2012-08-28 22:50:47 +00:00
Adrian Chadd
f678730318 oops, make cfg read-write. 2012-08-28 06:52:00 +00:00
Adrian Chadd
21c252ea7f This is an initial board configuration for the D-Link DIR-825 dual-band
802.11n router.

The flash layout defaults to a 1 MiB section for the kernel so I'm trying
very hard to squeeze a minimialistic (LZMA compressde) kernel image into
that.

I've verified that it boots through to single user mode fine.

Issues:

* USB doesn't yet work as a module - I need to add something else to the
  USB AR71xx build before that will work.
* There's no switch PHY support - but for now it quite happily behaves
  as a useful dumb switch out of the box.  Phew.
* Since a previous flash attempt trashed my radio configuration block,
  I haven't yet verified whether the wireless works correctly.
  I'll test that out shortly (read: once I re-calibrate the board somehow.)

Thanks to ray@ and the zrouter project for doing some of the initial
hard work in figuring out how to bring this board up.
2012-08-28 06:17:44 +00:00
Adrian Chadd
90885c6618 Convert AP93 to use the new AR724X_BASE configuration file. 2012-08-27 21:59:52 +00:00
Adrian Chadd
8fcbdb2c69 Slim down the default AR724X build.
The AR724X boards tend to come with minimal RAM/flash.
2012-08-27 21:53:01 +00:00
Adrian Chadd
bb6e6dce3d Convert to using ulzma. 2012-08-27 21:49:37 +00:00
Robert Watson
0b407da766 Expose DE4 buttons and switches via a de4bsw device, implemented using
altera_avgen(4).

Fix white space nit that must have arisen during the merge from Perforce.

Submitted by:	brooks
Sponsored by:	DARPA, AFRL
2012-08-26 10:40:13 +00:00
Robert Watson
7b957f4fe7 Add terasic_de4led, a led(4) driver for the on-board 8-element LED on the
Terasic DE-4 board.  Allow LED configuration to be set using loader
tunables, not just from userspace, and preconfigure LED 8 as a kernel
heartbeat.  For now, this is a Nexus-attached, BERI-only driver, but it
could be used with other hard and soft cores on Altera FPGAs as well, in
principle.

Sponsored by:	DARPA, AFRL
2012-08-26 09:21:59 +00:00
Adrian Chadd
8454b1bf68 Ensure that BAR(0) is set for the PCI slot before the ath(4) PCI registers
are written out.

This allows EEPROM-less NICs on the AR7241 PCIe bus to be correctly
initialised.

Tested:

* AP91 (AR7240+AR9285) - the existing board support didn't break;
* AP99 (AR7241+AR9287) - this fixed the configuration of the AR9287 PCI.
2012-08-26 04:39:20 +00:00
Adrian Chadd
d5c5e2ef11 Create a skeleton AR724x SoC board configuration for use by AR724x devices. 2012-08-26 04:36:59 +00:00
Robert Watson
ec5bd1da7d Add terasic_mtl(4), a device driver for the Terasic Multi-Touch LCD,
used with Terasic's DE-4 and other similar FPGA boards.  This display
is 800x480 and includes a capacitive touch screen, multi-touch
gesture recognition, etc.  This device driver depends on a Cambridge-
provided IP core that allows the MTL device to be hooked up to the
Altera Avalon SoC bus, and also provides a VGA-like text frame buffer.

Although it is compiled as a single device driver, it actually
implements a number of different device nodes exporting various
aspects of this multi-function device to userspace:

- Simple memory-mapped driver for the MTL 24-bit pixel frame buffer.
- Simple memory-mapped driver for the MTL control register set.
- Simple memory-mapped driver for the MTL text frame buffer.
- syscons attachment for the MTL text frame buffer.

This driver attaches directly to Nexus as is common for SoC device
drivers, and for the time being is considered BERI-specific, although
in principle it might be used with other hard and soft cores on
Altera FPGAs.

Control registers, including touchscreen input, are simply memory
mapped; in the future it would be desirable to hook up a more
conventional device node that can stream events, support kqueue(2)/
poll(2)/select(2), etc.

This is the first use of syscons on MIPS, as far as I can tell, and
there are some loose ends, such as an inability to use the hardware
cursor.  More fundamentally, it appears that syscons(4) assumes that
either a host is PC-like (i386, amd64) *or* it must be using a
graphical frame buffer.  While the MTL supports a graphical frame
buffer, using the text frame buffer is preferable for console use.
Fixing this issue in syscons(4) requires non-trivial changes, as the
text frame buffer support assumes that direct memory access can be
done to the text frame buffer without using bus accessor methods,
which is not the case on MIPS.  As a workaround for this, we instead
double-buffer and pretend to be a graphical frame buffer exposing
text accessor methods, leading to some quirks in syscons behaviour.

Sponsored by:	DARPA, AFRL
2012-08-25 22:35:29 +00:00
Brooks Davis
087d31736a Add isf(4), a driver for the Intel StrataFlash family of NOR flash parts.
The driver attempts to support all documented parts, but has only been
tested with the 512Mbit part on the Terasic DE4 FPGA board.  It should be
trivial to adapt the driver's attach routine to other embedded boards
using with any parts in the family.

Also import isfctl(8) which can be used to erase sections of the flash.

Sponsored by:	DARPA, AFRL
2012-08-25 18:08:20 +00:00
Robert Watson
9d58c692cc Add MD syscons header file for MIPS.
Sponsored by:	DARPA, AFRL
2012-08-25 17:57:50 +00:00
Brooks Davis
063629a18d Don't include syscons in the config just yet. We haven't imported the
touchscreen driver yet.
2012-08-25 17:34:48 +00:00
Alan Cox
648b050d7d Retire PV_TABLE_MOD. When we destroy or write protect a dirty mapping,
we call vm_page_dirty().  Maintaining the PV_TABLE_MOD flag, in addition,
serves no useful purpose.
2012-08-25 16:55:38 +00:00
Robert Watson
190cc7cf25 Add reference kernel configurations for FreeBSD/beri in simulation, on the
Terasic DE-4, and Terasic tPad Altera-based boards.

Sponsored by:	DARPA, AFRL
2012-08-25 12:02:13 +00:00
Robert Watson
697a77c1c4 Add altera_jtag_uart(4), a device driver for Altera's JTAG UART soft core,
which presents a UART-like interface over the Avalon bus that can be
addressed over JTAG.  This IP core proves extremely useful, allowing us to
connect trivially to the FreeBSD console over JTAG for FPGA-embedded hard
and soft cores.  As interrupts are optionally configured for this soft
core, we support both interrupt-driven and polled modes of operation,
which must be selected using device.hints.  UART instances appear in /dev
as ttyu0, ttyu1, etc.

However, it also contains a number of quirks, which make it difficult to
tell when JTAG is connected, and some buffering issues.  We work around
these as best we can, using various heuristics.

While the majority of this device driver is not only not BERI-specific,
but also not MIPS-specific, for now add its defines in the BERI files
list, as the console-level parts are aware of where the first JTAG UART
is mapped on Avalon, and contain MIPS-specific address translation, to
use before Newbus and device.hints are available.

Sponsored by:	DARPA, AFRL
2012-08-25 11:30:36 +00:00
Robert Watson
c9790125b5 Add preliminary support for the SRI International / University of Cambridge
Bluespec Extensible RISC Implementation (BERI) processor.  BERI is a 64-bit
MIPS ISA soft CPU core that can be synthesised to Altera and Xilinx FPGAs,
and is being used for CPU and OS research at several institutions.

Sponsored by:   DARPA, AFRL
2012-08-25 08:31:21 +00:00
Robert Watson
8122a592ee Provide basic glue to allow syscons to be used on MIPS, modelled
on PowerPC support.  This was clearly not something syscons was
designed to do (very specific assumptions about the nature of VGA
consoles on PCs), but fortunately others have long since blazed
the way on making it work regardless of that.

Sponsored by:	DARPA, AFRL
2012-08-25 08:09:37 +00:00
Robert Watson
431735d0c3 On MIPS, when printing page fault information for an unexpected exception
type, explicitly print out "unknown" rather than the empty string, and
include the exception type number for ease of debugging.

Sponsored by:	DARPA, AFRL
2012-08-25 08:02:46 +00:00
Aleksandr Rybalko
40bcb1d1fd Remove duplicated GEOM_PART_* options.
PR:		170931
Approved by:	adrian
2012-08-23 22:23:56 +00:00
Jayachandran C.
8099aeffc3 Add correct range parameter in XLP DTS
r239274 added support for ranges. Update XLP DTS to provide the correct
range parameter for the XLP SoC bus.  Also fix bus_space_map method
for XLP bus space.

Submitted by:	Sreekanth M. <sreekanth.molagavalli@broadcom.com>
2012-08-21 09:37:23 +00:00
Jayachandran C.
718444dcc1 Define and exclude DRAM regions used by hardware/bootloder on XLP
Fix xlp_mem_init() - remove the ad-hoc code for excluding memory regions
and use an array of regions.
2012-08-20 11:51:49 +00:00
Alan Cox
09563c2244 Eliminate another vestige of page coloring. 2012-08-17 20:15:01 +00:00
Alan Cox
f274a47134 Fix two problems with pmap_clear_modify().
First, pmap_clear_modify() is write protecting all mappings to the specified
page, not just clearing the modified bit.  Specifically, it sets PTE_RO on
the PTE, which is wrong.  Moreover, it is calling vm_page_dirty(), which is
not the expected behavior for pmap_clear_modify().  Generally speaking, the
machine-independent VM layer masks these mistakes.  For example, setting
PTE_RO will result in additional soft faults, but not a catastrophe.

Second, pmap_clear_modify() may not clear the modified bits because it only
iterates over the PV list when the page has the PV_TABLE_MOD flag set and
elsewhere the pmap clears the PV_TABLE_MOD flag anytime a modified mapping
is write protected or destroyed.  However, the page may still have other
mappings with the modified bit set.

Eliminate a stale comment.
2012-08-17 05:02:29 +00:00
Rui Paulo
8c09f7b626 The GPIO drivers were initialising their mutexes with type of
MTX_NETWORK_LOCK. This is wrong since these mutexes have nothing to do
with networking.
2012-08-17 04:44:57 +00:00
Alan Cox
6f601842d2 Eliminate an unused parameter from init_pte_prot().
Eliminate stray whitespace within init_pte_prot().

Eliminate a gratuitous variable initialization from pmap_enter().
2012-08-16 04:41:15 +00:00
Alan Cox
397b37ed55 Replace all uses of the vm page queues lock by a r/w lock that is private
to this pmap.

Tidy up the #include's.

Remove the (now) unused #define PMAP_SHPGPERPROC.  (This should have
been removed in r239236.)

Tested by:	jchandra
2012-08-15 22:51:01 +00:00
Alan Cox
f167c4a762 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 will allow for the
removal of the page queues lock from this pmap.

Fix a rather serious bug in pmap_remove_write().  After removing write
access from the specified page's first mapping, pmap_remove_write() then
used the wrong "next" pointer.  Consequently, the page's second, third,
etc. mappings were not write protected.

Tested by:	jchandra
2012-08-13 17:38:38 +00:00
Alan Cox
c0c5f0df71 Merge r134393 from amd64/i386:
The machine-independent parts of the virtual memory system always pass a
  valid pmap to the pmap functions that require one.  Remove the checks for
  NULL.  (These checks have their origins in the Mach pmap.c that was
  integrated into BSD.  None of the new code written specifically for
  FreeBSD included them.)
2012-08-10 05:00:50 +00:00
Alan Cox
b3ca34cfd2 Merge r132141 and r111272 from amd64/i386:
Reduce the size of a PV entry by eliminating pv_ptem.  There is no need
  to store a pointer to the page table page in the PV entry because it is
  easily computed during the walk down the page table.

  Eliminate the ptphint from the pmap.  Long, long ago, page table pages
  belonged to a vm object, and we would look up page table pages based
  upon their offset within this vm object.  In those days, this hint may
  have had tangible benefits.

Tested by:	jchandra
2012-08-09 16:38:17 +00:00