Commit Graph

1230 Commits

Author SHA1 Message Date
Rafal Jaworowski
915421bba4 Move ARM nexus rman initialization to attach routine.
This fixes a panic, which started to trigger after r209129 cleanup.

Submitted by:	Andrew Turner
2010-06-16 14:10:39 +00:00
Olivier Houchard
8b1f99cdd4 Turn off cache if there's more than one kernel mapping, and one is writable.
Submitted by:   Mark Tinguely
2010-06-15 22:16:02 +00:00
Rafal Jaworowski
98dbf5572a Temporarily bring back the ARM bootinfo (and make tinderbox happy).
BI will be eliminated for good when powerpc transition to FDT is complete.
2010-06-14 16:05:21 +00:00
Rafal Jaworowski
db5ef4fc77 Convert Marvell ARM platforms to FDT convention.
The following systems are involved:

  - DB-88F5182
  - DB-88F5281
  - DB-88F6281
  - DB-78100
  - SheevaPlug

This overhaul covers the following major changes:

  - All integrated peripherals drivers for Marvell ARM SoC, which are
    currently in the FreeBSD source tree are reworked and adjusted so they
    derive config data out of the device tree blob (instead of hard coded /
    tabelarized values).

  - Since the common FDT infrastrucutre (fdtbus, simplebus) is used we say
    good by to obio / mbus drivers and numerous hard-coded config data.

Note that world needs to be built WITH_FDT for the affected platforms.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation.
2010-06-13 13:28:53 +00:00
Rafal Jaworowski
dc65d002dd Initial FDT infrastructure elements for ARM.
Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2010-06-13 13:12:52 +00:00
Rafal Jaworowski
ddf2705d57 Improve style. 2010-06-13 13:08:23 +00:00
Alan Cox
9124d0d6a3 Relax one of the new assertions in pmap_enter() a little. Specifically,
allow pmap_enter() to be performed on an unmanaged page that doesn't have
VPO_BUSY set.  Having VPO_BUSY set really only matters for managed pages.
(See, for example, pmap_remove_write().)
2010-06-11 15:49:39 +00:00
Alan Cox
ce18658792 Reduce the scope of the page queues lock and the number of
PG_REFERENCED changes in vm_pageout_object_deactivate_pages().
Simplify this function's inner loop using TAILQ_FOREACH(), and shorten
some of its overly long lines.  Update a stale comment.

Assert that PG_REFERENCED may be cleared only if the object containing
the page is locked.  Add a comment documenting this.

Assert that a caller to vm_page_requeue() holds the page queues lock,
and assert that the page is on a page queue.

Push down the page queues lock into pmap_ts_referenced() and
pmap_page_exists_quick().  (As of now, there are no longer any pmap
functions that expect to be called with the page queues lock held.)

Neither pmap_ts_referenced() nor pmap_page_exists_quick() should ever
be passed an unmanaged page.  Assert this rather than returning "0"
and "FALSE" respectively.

ARM:

Simplify pmap_page_exists_quick() by switching to TAILQ_FOREACH().

Push down the page queues lock inside of pmap_clearbit(), simplifying
pmap_clear_modify(), pmap_clear_reference(), and pmap_remove_write().
Additionally, this allows for avoiding the acquisition of the page
queues lock in some cases.

PowerPC/AIM:

moea*_page_exits_quick() and moea*_page_wired_mappings() will never be
called before pmap initialization is complete.  Therefore, the check
for moea_initialized can be eliminated.

Push down the page queues lock inside of moea*_clear_bit(),
simplifying moea*_clear_modify() and moea*_clear_reference().

The last parameter to moea*_clear_bit() is never used.  Eliminate it.

PowerPC/BookE:

Simplify mmu_booke_page_exists_quick()'s control flow.

Reviewed by:	kib@
2010-06-10 16:56:35 +00:00
Alan Cox
85a71b2578 Don't set PG_WRITEABLE in pmap_enter() unless the page is managed.
Correct a typo in a nearby comment on sparc64.
2010-06-05 18:20:09 +00:00
Alan Cox
6e6a072d39 In pmap_enter_locked(), don't require the vector page to be VPO_BUSY. 2010-06-01 05:32:59 +00:00
Alan Cox
c46b90e90a Push down page queues lock acquisition in pmap_enter_object() and
pmap_is_referenced().  Eliminate the corresponding page queues lock
acquisitions from vm_map_pmap_enter() and mincore(), respectively.  In
mincore(), this allows some additional cases to complete without ever
acquiring the page queues lock.

Assert that the page is managed in pmap_is_referenced().

On powerpc/aim, push down the page queues lock acquisition from
moea*_is_modified() and moea*_is_referenced() into moea*_query_bit().
Again, this will allow some additional cases to complete without ever
acquiring the page queues lock.

Reorder a few statements in vm_page_dontneed() so that a race can't lead
to an old reference persisting.  This scenario is described in detail by a
comment.

Correct a spelling error in vm_page_dontneed().

Assert that the object is locked in vm_page_clear_dirty(), and restrict the
page queues lock assertion to just those cases in which the page is
currently writeable.

Add object locking to vnode_pager_generic_putpages().  This was the one
and only place where vm_page_clear_dirty() was being called without the
object being locked.

Eliminate an unnecessary vm_page_lock() around vnode_pager_setsize()'s call
to vm_page_clear_dirty().

Change vnode_pager_generic_putpages() to the modern-style of function
definition.  Also, change the name of one of the parameters to follow
virtual memory system naming conventions.

Reviewed by:	kib
2010-05-26 18:00:44 +00:00
Rafal Jaworowski
04cb90189b Initial loader(8) support for Flattened Device Tree.
o This is disabled by default for now, and can be enabled using WITH_FDT at
  build time.

o Tested with ARM and PowerPC.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2010-05-25 15:21:39 +00:00
Alan Cox
567e51e18c Roughly half of a typical pmap_mincore() implementation is machine-
independent code.  Move this code into mincore(), and eliminate the
page queues lock from pmap_mincore().

Push down the page queues lock into pmap_clear_modify(),
pmap_clear_reference(), and pmap_is_modified().  Assert that these
functions are never passed an unmanaged page.

Eliminate an inaccurate comment from powerpc/powerpc/mmu_if.m:
Contrary to what the comment says, pmap_mincore() is not simply an
optimization.  Without a complete pmap_mincore() implementation,
mincore() cannot return either MINCORE_MODIFIED or MINCORE_REFERENCED
because only the pmap can provide this information.

Eliminate the page queues lock from vfs_setdirty_locked_object(),
vm_pageout_clean(), vm_object_page_collect_flush(), and
vm_object_page_clean().  Generally speaking, these are all accesses
to the page's dirty field, which are synchronized by the containing
vm object's lock.

Reduce the scope of the page queues lock in vm_object_madvise() and
vm_page_dontneed().

Reviewed by:	kib (an earlier version)
2010-05-24 14:26:57 +00:00
Konstantin Belousov
afe1a68827 Reorganize syscall entry and leave handling.
Extend struct sysvec with three new elements:
sv_fetch_syscall_args - the method to fetch syscall arguments from
  usermode into struct syscall_args. The structure is machine-depended
  (this might be reconsidered after all architectures are converted).
sv_set_syscall_retval - the method to set a return value for usermode
  from the syscall. It is a generalization of
  cpu_set_syscall_retval(9) to allow ABIs to override the way to set a
  return value.
sv_syscallnames - the table of syscall names.

Use sv_set_syscall_retval in kern_sigsuspend() instead of hardcoding
the call to cpu_set_syscall_retval().

The new functions syscallenter(9) and syscallret(9) are provided that
use sv_*syscall* pointers and contain the common repeated code from
the syscall() implementations for the architecture-specific syscall
trap handlers.

Syscallenter() fetches arguments, calls syscall implementation from
ABI sysent table, and set up return frame. The end of syscall
bookkeeping is done by syscallret().

Take advantage of single place for MI syscall handling code and
implement ptrace_lwpinfo pl_flags PL_FLAG_SCE, PL_FLAG_SCX and
PL_FLAG_EXEC. The SCE and SCX flags notify the debugger that the
thread is stopped at syscall entry or return point respectively.  The
EXEC flag augments SCX and notifies debugger that the process address
space was changed by one of exec(2)-family syscalls.

The i386, amd64, sparc64, sun4v, powerpc and ia64 syscall()s are
changed to use syscallenter()/syscallret(). MIPS and arm are not
converted and use the mostly unchanged syscall() implementation.

Reviewed by:	jhb, marcel, marius, nwhitehorn, stas
Tested by:	marcel (ia64), marius (sparc64), nwhitehorn (powerpc),
	stas (mips)
MFC after:	1 month
2010-05-23 18:32:02 +00:00
Alan Cox
9ab6032f73 On entry to pmap_enter(), assert that the page is busy. While I'm
here, make the style of assertion used by pmap_enter() consistent
across all architectures.

On entry to pmap_remove_write(), assert that the page is neither
unmanaged nor fictitious, since we cannot remove write access to
either kind of page.

With the push down of the page queues lock, pmap_remove_write() cannot
condition its behavior on the state of the PG_WRITEABLE flag if the
page is busy.  Assert that the object containing the page is locked.
This allows us to know that the page will neither become busy nor will
PG_WRITEABLE be set on it while pmap_remove_write() is running.

Correct a long-standing bug in vm_page_cowsetup().  We cannot possibly
do copy-on-write-based zero-copy transmit on unmanaged or fictitious
pages, so don't even try.  Previously, the call to pmap_remove_write()
would have failed silently.
2010-05-16 23:45:10 +00:00
Olivier Houchard
1c5ddcdfac Catchup with new prototype for db_printf(). 2010-05-14 00:00:19 +00:00
Kevin Lo
6c0458664f The FA526 belongs to the ARM9TDMI family 2010-05-12 05:50:56 +00:00
Alan Cox
3c4a24406b Push down the page queues into vm_page_cache(), vm_page_try_to_cache(), and
vm_page_try_to_free().  Consequently, push down the page queues lock into
pmap_enter_quick(), pmap_page_wired_mapped(), pmap_remove_all(), and
pmap_remove_write().

Push down the page queues lock into Xen's pmap_page_is_mapped().  (I
overlooked the Xen pmap in r207702.)

Switch to a per-processor counter for the total number of pages cached.
2010-05-08 20:34:01 +00:00
Kevin Lo
64c68f1c50 Add support for FA626TE.
Tested on GM8181 development board.
2010-05-04 10:14:05 +00:00
Maxim Sobolev
e50d35e6c6 Add new tunable 'net.link.ifqmaxlen' to set default send interface
queue length. The default value for this parameter is 50, which is
quite low for many of today's uses and the only way to modify this
parameter right now is to edit if_var.h file. Also add read-only
sysctl with the same name, so that it's possible to retrieve the
current value.

MFC after:	1 month
2010-05-03 07:32:50 +00:00
Alexander Motin
dd48af360f Import mvs(4) - Marvell 88SX50XX/88SX60XX/88SX70XX/SoC SATA controllers
driver for CAM ATA subsystem. This driver supports same hardware as
atamarvell, ataadaptec and atamvsata drivers from ata(4), but provides
many additional features, such as NCQ, PMP, etc.
2010-05-02 19:28:30 +00:00
Kip Macy
2965a45315 On Alan's advice, rather than do a wholesale conversion on a single
architecture from page queue lock to a hashed array of page locks
(based on a patch by Jeff Roberson), I've implemented page lock
support in the MI code and have only moved vm_page's hold_count
out from under page queue mutex to page lock. This changes
pmap_extract_and_hold on all pmaps.

Supported by: Bitgravity Inc.

Discussed with: alc, jeffr, and kib
2010-04-30 00:46:43 +00:00
Konstantin Belousov
8bac98182a Style: use #define<TAB> instead of #define<SPACE>.
Noted by:	bde, pluknet gmail com
MFC after:	11 days
2010-04-27 09:48:43 +00:00
Alan Cox
7b85f59183 Resurrect pmap_is_referenced() and use it in mincore(). Essentially,
pmap_ts_referenced() is not always appropriate for checking whether or
not pages have been referenced because it clears any reference bits
that it encounters.  For example, in mincore(), clearing the reference
bits has two negative consequences.  First, it throws off the activity
count calculations performed by the page daemon.  Specifically, a page
on which mincore() has called pmap_ts_referenced() looks less active
to the page daemon than it should.  Consequently, the page could be
deactivated prematurely by the page daemon.  Arguably, this problem
could be fixed by having mincore() duplicate the activity count
calculation on the page.  However, there is a second problem for which
that is not a solution.  In order to clear a reference on a 4KB page,
it may be necessary to demote a 2/4MB page mapping.  Thus, a mincore()
by one process can have the side effect of demoting a superpage
mapping within another process!
2010-04-24 17:32:52 +00:00
Konstantin Belousov
ed7806879b Move the constants specifying the size of struct kinfo_proc into
machine-specific header files. Add KINFO_PROC32_SIZE for struct
kinfo_proc32 for architectures providing COMPAT_FREEBSD32. Add
CTASSERT for the size of struct kinfo_proc32.

Submitted by:	pluknet
Reviewed by:	imp, jhb, nwhitehorn
MFC after:	2 weeks
2010-04-24 12:49:52 +00:00
Andrew Thompson
b850ecc180 Change USB_DEBUG to #ifdef and allow it to be turned off. Previously this had
the illusion of a tunable setting but was always turned on regardless.

MFC after:	1 week
2010-04-22 21:31:34 +00:00
Warner Losh
b938b7a366 Add BUS_SPACE_UNRESTRICTED and define it to be ~0, just like all the
other platforms.
2010-04-08 19:34:55 +00:00
Alexander Motin
0295bbe76f Oops! Wrong copy-paste in r206053. 2010-04-01 19:05:43 +00:00
Alexander Motin
4703a67a9a Fill extended ATA command registers in cPRD to support 48bit commands. 2010-04-01 18:17:53 +00:00
Warner Losh
309e3c39d2 Build modules for this config to make sure they stay buildable... 2010-03-29 22:29:41 +00:00
Rui Paulo
c0873717d4 Pass the correct pointer to fled_cb(). 2010-03-26 18:49:43 +00:00
Nathan Whitehorn
a107d8aac9 Change the arguments of exec_setregs() so that it receives a pointer
to the image_params struct instead of several members of that struct
individually. This makes it easier to expand its arguments in the future
without touching all platforms.

Reviewed by:	jhb
2010-03-25 14:24:00 +00:00
Olivier Houchard
504e4c2e74 Make sure we insert and remove the PV entries related to unmanaged kernel
mappings into the kernel pmap, not into the pmap related to the
pmap_enter_pv()/pmap_remove_pv() call.
2010-03-21 21:03:35 +00:00
Warner Losh
30e980f2d1 Add support for the Samsung S3C2xx0 family of ARM SoCs written by
Andrew Turner.  The kernel supports the LN2410SBC evaluation board,
and likely others.  These parts (or similar ones) are in some open
hardware designs for phones.

Submitted by:	Andrew Turner
2010-03-20 03:39:35 +00:00
Bernd Walter
41ecefa550 fix type in comment 2010-03-12 22:39:35 +00:00
Rafal Jaworowski
da10e7e2d6 Fix ARM cache handling yet more.
1) vm_machdep.c: remove the dangling allocations so they do not
   un-necessarily turn off the cache upon consecutive access.

2) busdma_machdep.c: remove the same amount than shadow mapped.

Reported by:	Maks Verver
Submitted by:	Mark Tinguely
Reviewed by:	Grzegorz Bernacki
MFC after:	3 days
2010-03-11 21:16:54 +00:00
Rafal Jaworowski
43404d7e0b Let detailed info about CPU features print on Marvell Sheeva CPU as well.
Provide missing entry in the cpu_classes[].

Reported by:	Maks Verver
MFC after:	1 week
2010-03-11 21:04:29 +00:00
Rafal Jaworowski
bd50890544 Provide correct TCLK value for Kirkwood A1 silicon revision.
While there improve SOC ID output accordingly.

Obtained from:	Semihalf
MFC after:	1 week
2010-03-05 19:45:45 +00:00
Bernd Walter
80720032c0 simplify hash calculation 2010-02-28 18:06:54 +00:00
Bernd Walter
f7255c488c remove debug leftover 2010-02-28 16:14:34 +00:00
Bernd Walter
31e94ae09f Fix multicast hashes.
Atmel uses a simple xor hash instead of the typical crc based one.
2010-02-28 16:11:13 +00:00
Rafal Jaworowski
a9024075a7 Do not force verbose and single mode in non-metadata boot case.
We want to go multi-user by default also in case of booting without loader(8).
2010-02-24 20:31:00 +00:00
Rebecca Cran
6c655111ad Update the commented out option for omitting the sysctl descriptions; it
was committed as NO_SYSCTL_DESCR.

Approved by:	rrs (mentor)
2010-02-24 19:28:15 +00:00
Rui Paulo
4cd0801096 Fix previous commit: led_func() doesn't exist, it should be fled_cb().
Pointed out by:	bz
2010-02-22 14:49:52 +00:00
Kevin Lo
16445d1e64 Show the cpu info for fa526
Submitted by:	Yohanes Nugroho <yohanes at gmail dot com>
2010-02-20 14:54:11 +00:00
Kevin Lo
dbb0e359a7 Correct both FA526/FA626TE cpu ids since the cpu id is always
masked with 0xfffffff0
2010-02-20 14:52:07 +00:00
Warner Losh
d01c5f360e The NetBSD Foundation has granted permission to remove clauses 3 and 4.
Obtained from:	NetBSD
2010-02-16 21:59:17 +00:00
Attilio Rao
c1210a7d97 Adjust style (following the already existing rules) for the newly
introduced option DEADLKRES.

Reported by:	danfe, julian, avg
2010-02-15 23:44:48 +00:00
Kevin Lo
4e92112d57 Correct cpu id for FA526.
While I'm here, add cpu id for FA626TE.
2010-02-14 05:02:08 +00:00
Attilio Rao
88cbfa852e Add the options DEADLKRES (introducing the deadlock resolver thread) in
the 'debugging' section of any HEAD kernel and enable for the mainstream
ones, excluding the embedded architectures.
It may, of course, enabled on a case-by-case basis.

Sponsored by:	Sandvine Incorporated
Requested by:	emaste
Discussed with:	kib
2010-02-10 16:30:04 +00:00