Commit Graph

115 Commits

Author SHA1 Message Date
Ian Lepore
1ec2d237e0 Allow the make_dtb script to work outside of a "make buildkernel" context
by setting MACHINE from uname -m if it's not set already.

Reviewed by:	imp, tuexen
2014-08-30 22:39:15 +00:00
Rui Paulo
4f1156ca62 Call cpp with -P to avoid printing line markings. 2014-06-10 06:24:01 +00:00
Warner Losh
382b6bbafe Fix logic error. <blush>
Submitted by: ian@
2014-04-30 20:52:38 +00:00
Warner Losh
56d78e82f0 Turns out this .if evaluated not in the context of the makedtb target
sometimes due to Makefile expansion rules. Make the test for things
being NULL elsewhere...
2014-04-30 20:47:40 +00:00
Warner Losh
0edb735169 Allow FDT_DTS_FILE to be a list, either in the makedtb target, or in a
kernel config file. If you also want to have a static DTB compiled
into your kernel, however, it cannot be a list. We have no mechanism
in the kernel for picking one, so that doesn't make sense and will
result in a compile-time error.
2014-04-30 18:02:04 +00:00
Ed Maste
0fcefb433d Update NetBSD Foundation copyrights to 2-clause BSD
The NetBSD Foundation states "Third parties are encouraged to change the
license on any files which have a 4-clause license contributed to the
NetBSD Foundation to a 2-clause license."

This change removes clauses 3 and 4 from copyright / license blocks that
list The NetBSD Foundation as the only copyright holder.

Sponsored by:	The FreeBSD Foundation
2014-03-18 01:40:25 +00:00
Warner Losh
8b86933acc Use proper include path for dtc as well as cpp. 2014-02-28 22:37:35 +00:00
Warner Losh
eeb913c99f Integrate device-tree upstream files into the build process:
(1) Invoke cpp to bring in files via #include (although the old
    /include/ stuff is supported still).
(2) bring in files from either vendor tree or freebsd-custom files
    when building.
(3) move all dts* files from sys/boot/fdt/dts to
    sys/boot/fdt/dts/${MACHINE} as appropriate.
(4) encode all the magic to do the build in sys/tools/fdt/make_dtb.sh
    so that the different places in the tree use the exact same logic.
(5) switch back to gpl dtc by default. the bsdl one in the tree has
    significant issues not easily addressed by those unfamiliar with
    the code.
2014-02-28 18:29:09 +00:00
Andriy Gapon
d9fae5ab88 dtrace sdt: remove the ugly sname parameter of SDT_PROBE_DEFINE
In its stead use the Solaris / illumos approach of emulating '-' (dash)
in probe names with '__' (two consecutive underscores).

Reviewed by:	markj
MFC after:	3 weeks
2013-11-26 08:46:27 +00:00
Attilio Rao
54366c0bd7 - For kernel compiled only with KDTRACE_HOOKS and not any lock debugging
option, unbreak the lock tracing release semantic by embedding
  calls to LOCKSTAT_PROFILE_RELEASE_LOCK() direclty in the inlined
  version of the releasing functions for mutex, rwlock and sxlock.
  Failing to do so skips the lockstat_probe_func invokation for
  unlocking.
- As part of the LOCKSTAT support is inlined in mutex operation, for
  kernel compiled without lock debugging options, potentially every
  consumer must be compiled including opt_kdtrace.h.
  Fix this by moving KDTRACE_HOOKS into opt_global.h and remove the
  dependency by opt_kdtrace.h for all files, as now only KDTRACE_FRAMES
  is linked there and it is only used as a compile-time stub [0].

[0] immediately shows some new bug as DTRACE-derived support for debug
in sfxge is broken and it was never really tested.  As it was not
including correctly opt_kdtrace.h before it was never enabled so it
was kept broken for a while.  Fix this by using a protection stub,
leaving sfxge driver authors the responsibility for fixing it
appropriately [1].

Sponsored by:	EMC / Isilon storage division
Discussed with:	rstone
[0] Reported by:	rstone
[1] Discussed with:	philip
2013-11-25 07:38:45 +00:00
John Baldwin
593efaf9f7 Further refine the handling of stop signals in the NFS client. The
changes in r246417 were incomplete as they did not add explicit calls to
sigdeferstop() around all the places that previously passed SBDRY to
_sleep().  In addition, nfs_getcacheblk() could trigger a write RPC from
getblk() resulting in sigdeferstop() recursing.  Rather than manually
deferring stop signals in specific places, change the VFS_*() and VOP_*()
methods to defer stop signals for filesystems which request this behavior
via a new VFCF_SBDRY flag.  Note that this has to be a VFC flag rather than
a MNTK flag so that it works properly with VFS_MOUNT() when the mount is
not yet fully constructed.  For now, only the NFS clients are set this new
flag in VFS_SET().

A few other related changes:
- Add an assertion to ensure that TDF_SBDRY doesn't leak to userland.
- When a lookup request uses VOP_READLINK() to follow a symlink, mark
  the request as being on behalf of the thread performing the lookup
  (cnp_thread) rather than using a NULL thread pointer.  This causes
  NFS to properly handle signals during this VOP on an interruptible
  mount.

PR:		kern/176179
Reported by:	Russell Cattelan (sigdeferstop() recursion)
Reviewed by:	kib
MFC after:	1 month
2013-02-21 19:02:50 +00:00
Oleksandr Tymoshenko
7fc3ae51f3 Fix build on ARM (and probably other platforms) 2012-12-28 06:52:53 +00:00
Jeff Roberson
4c44811c9d - Add new machine parsable KTR macros for timing events.
- Use this new format to automatically handle syscalls and VOPs.  This
   changes the earlier format but is still human readable.

Sponsored by:	EMC / Isilon Storage Division
2012-12-19 20:10:00 +00:00
Kevin Lo
9823d52705 Revert previous commit...
Pointyhat to:	kevlo (myself)
2012-10-10 08:36:38 +00:00
Kevin Lo
a10cee30c9 Prefer NULL over 0 for pointers 2012-10-09 08:27:40 +00:00
Mikolaj Golub
f62f6c88ee Make vnode_if.awk parse vnode operations with underscores, like VOP_FOO_BAR.
Reviewed by:	kib
MFC after:	1 week
2012-02-21 19:35:59 +00:00
Ed Schouten
5cac9fa00e Restore the comment that I removed by accident.
The comment still applies to this block of code.
2011-11-09 13:26:59 +00:00
Ed Schouten
d09ebcec17 Simplify the code emitted by makeobjops.awk slightly.
Just place the default kobj_method inside the kobjop_desc structure.
There's no need to give these kobj_methods their own symbol. This shaves
off 10 KB of a GENERIC kernel binary.
2011-11-09 11:00:29 +00:00
Ed Schouten
3f3f6bc302 Make kobj_methods constant.
These structures hold no information that is modified during runtime. By
marking this constant, we see approximately 600 symbols become
read-only (amd64 GENERIC). While there, also mark the kobj_method
structures generated by makeobjops.awk static. They are only referenced
by the kobjop_desc structures within the same file.

Before:

	$ ls -l kernel
	-rwxr-xr-x  1 ed  wheel  15937309 Nov  8 16:29 kernel*
	$ size kernel
	    text    data     bss      dec    hex filename
	12260854 1358468 2848832 16468154 fb48ba kernel
	$ nm kernel | fgrep -c ' r '
	8240

After:

	$ ls -l kernel
	-rwxr-xr-x  1 ed  wheel  15922469 Nov  8 16:25 kernel*
	$ size kernel
	    text    data     bss      dec    hex filename
	12302869 1302660 2848704 16454233 fb1259 kernel
	$ nm kernel | fgrep -c ' r '
	8838
2011-11-08 15:38:21 +00:00
Ryan Stone
04af6e9603 GNU awk does not output escaped newlines in multi-line printc statements. This
leads to compile errors when trying to compile firmware(9) stubs created with
gawk, as multiple #include statements end up on the same line.  Replace the
multi-line printc statement that outputs all of the #includes with one printc
per #include.  This allows modules compatible with firmware(9) to be cross-built
from a Linux machine without requiring the one true awk to be installed.

I've intentionally done the minimal set of changes necessary to make gawk
produce valid (but not pretty) C code, to reduce the churn and keep fw_stubs.awk
as readable as possible.

Approved by:	emaste (mentor)
MFC after:	2 weeks
2011-03-31 21:33:33 +00:00
Rui Paulo
79856499bd Add an extra comment to the SDT probes definition. This allows us to get
use '-' in probe names, matching the probe names in Solaris.[1]

Add userland SDT probes definitions to sys/sdt.h.

Sponsored by:	The FreeBSD Foundation
Discussed with:	rwaston [1]
2010-08-22 11:18:57 +00:00
Rafal Jaworowski
847ae21203 Flattened Device Tree helper scripts.
Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2010-06-02 17:22:38 +00:00
Rui Paulo
f91c218bf8 Output a comment on top of each generated file explaining where it came
from.
2009-10-25 09:48:21 +00:00
Ed Maste
97aa4d9845 Rename default to default_function, for compatibility with GNU awk.
(For cross-compiling out-of-tree kernel modules, for example.)
2009-10-22 20:57:17 +00:00
Max Khon
b352b7ccb9 Allow KMOD with hypens and dots.
MFC after:	1 week
2009-10-20 11:54:06 +00:00
Ariff Abdullah
96831ae59b - Increase dynamic range of filter coefficients from 28bit to 30bit.
This cause dramatic effect in overall precision and conversion quality
  by pushing down most aliasing artifacts around -180 dB.

  Spectrogram analysis/comparison:

  	http://people.freebsd.org/~ariff/z_comparison/z_28vs30/

- Guard against possible 64bit overflow during accumulation process by
  slightly normalize and saturate sample and coefficient multiplication,
  possible during extreme 32bit downsampling (eg. 380KHz -> 8KHz) with
  custom preset that require more than ~7000 taps filter (which is
  overkill).

- Add knobs through FEEDER_RATE_PRESETS to set dynamic range of filter
  coefficients/accumulator and prefered polynomial interpolator:

  	COEFFICIENT_BIT:X
	(where 1 <= X <= 30, default: 30)

	ACCUMULATOR_BIT:X
	(where 32 <= X <=64, default: 58)

	INTERPOLATOR:I
	(where I = ZOH, LINEAR, QUADRATIC, HERMITE, BSPLINE,
 	           OPT32X, OPT16X, OPT8X, OPT4X, OPT2X)

Approved by:	re (kib)
2009-07-05 18:15:06 +00:00
Ariff Abdullah
0162436974 Slightly increase amount of bandwidth of resampling filter for
feeder_rate_quality=3. This have the benefit of reducing aliasing
artifacts due to alias masking.

Spectrogram analysis:

 o Old preset (100:36:0.90)
	http://people.freebsd.org/~ariff/z_comparison/z_q3_old.png

 o New preset (100:36:0.92):
	http://people.freebsd.org/~ariff/z_comparison/z_q3_new.png

Approved by:	re (kib)
2009-07-02 10:02:10 +00:00
Ariff Abdullah
164e1f20ec - Add a way to change filter oversampling factor through
FEEDER_RATE_PRESET "OVERSAMPLING_FACTOR:X .. .." where
  X = log2(oversampling factor).

- Lower down default filter oversampling factor from 128
  (log2 = 7) to 32 (log2 = 5), saving worth of 80 Kb.
  The use of better polynomial interpolator will raise
  its conversion quality/accuracy to match (or slightly
  better) with previous settings.

- Bump driver version.
2009-06-15 04:31:34 +00:00
Ariff Abdullah
0f40c3f162 Move all sound related scripts to its own 'sound' subdir.
Suggested by:	jmallett
2009-06-10 06:49:45 +00:00
Ariff Abdullah
90da2b2859 Sound Mega-commit. Expect further cleanup until code freeze.
For a slightly thorough explaination, please refer to
	[1] http://people.freebsd.org/~ariff/SOUND_4.TXT.html .

Summary of changes includes:

1 Volume Per-Channel (vpc).  Provides private / standalone volume control
  unique per-stream pcm channel without touching master volume / pcm.
  Applications can directly use SNDCTL_DSP_[GET|SET][PLAY|REC]VOL, or for
  backwards compatibility, SOUND_MIXER_PCM through the opened dsp device
  instead of /dev/mixer.  Special "bypass" mode is enabled through
  /dev/mixer which will automatically detect if the adjustment is made
  through /dev/mixer and forward its request to this private volume
  controller.  Changes to this volume object will not interfere with
  other channels.

  Requirements:
    - SNDCTL_DSP_[GET|SET][PLAY|REC]_VOL are newer ioctls (OSSv4) which
      require specific application modifications (preferred).
    - No modifications required for using bypass mode, so applications
      like mplayer or xmms should work out of the box.

  Kernel hints:
    - hint.pcm.%d.vpc (0 = disable vpc).

  Kernel sysctls:
    - hw.snd.vpc_mixer_bypass (default: 1).  Enable or disable /dev/mixer
      bypass mode.
    - hw.snd.vpc_autoreset (default: 1).  By default, closing/opening
      /dev/dsp will reset the volume back to 0 db gain/attenuation.
      Setting this to 0 will preserve its settings across device
      closing/opening.
    - hw.snd.vpc_reset (default: 0).  Panic/reset button to reset all
      volume settings back to 0 db.
    - hw.snd.vpc_0db (default: 45).  0 db relative to linear mixer value.

2 High quality fixed-point Bandlimited SINC sampling rate converter,
  based on Julius O'Smith's Digital Audio Resampling -
  http://ccrma.stanford.edu/~jos/resample/.  It includes a filter design
  script written in awk (the clumsiest joke I've ever written)
    - 100% 32bit fixed-point, 64bit accumulator.
    - Possibly among the fastest (if not fastest) of its kind.
    - Resampling quality is tunable, either runtime or during kernel
      compilation (FEEDER_RATE_PRESETS).
    - Quality can be further customized during kernel compilation by
      defining FEEDER_RATE_PRESETS in /etc/make.conf.

  Kernel sysctls:
    - hw.snd.feeder_rate_quality.
      0 - Zero-order Hold (ZOH).  Fastest, bad quality.
      1 - Linear Interpolation (LINEAR).  Slightly slower than ZOH,
          better quality but still does not eliminate aliasing.
      2 - (and above) - Sinc Interpolation(SINC).  Best quality.  SINC
          quality always start from 2 and above.

  Rough quality comparisons:
    - http://people.freebsd.org/~ariff/z_comparison/

3 Bit-perfect mode.  Bypasses all feeder/dsp effects.  Pure sound will be
  directly fed into the hardware.

4 Parametric (compile time) Software Equalizer (Bass/Treble mixer). Can
  be customized by defining FEEDER_EQ_PRESETS in /etc/make.conf.

5 Transparent/Adaptive Virtual Channel. Now you don't have to disable
  vchans in order to make digital format pass through.  It also makes
  vchans more dynamic by choosing a better format/rate among all the
  concurrent streams, which means that dev.pcm.X.play.vchanformat/rate
  becomes sort of optional.

6 Exclusive Stream, with special open() mode O_EXCL.  This will "mute"
  other concurrent vchan streams and only allow a single channel with
  O_EXCL set to keep producing sound.

Other Changes:
    * most feeder_* stuffs are compilable in userland. Let's not
      speculate whether we should go all out for it (save that for
      FreeBSD 16.0-RELEASE).
    * kobj signature fixups, thanks to Andriy Gapon <avg@freebsd.org>
    * pull out channel mixing logic out of vchan.c and create its own
      feeder_mixer for world justice.
    * various refactoring here and there, for good or bad.
    * activation of few more OSSv4 ioctls() (see [1] above).
    * opt_snd.h for possible compile time configuration:
      (mostly for debugging purposes, don't try these at home)
        SND_DEBUG
        SND_DIAGNOSTIC
        SND_FEEDER_MULTIFORMAT
        SND_FEEDER_FULL_MULTIFORMAT
        SND_FEEDER_RATE_HP
        SND_PCM_64
        SND_OLDSTEREO

Manual page updates are on the way.

Tested by:	joel, Olivier SMEDTS <olivier at gid0 d org>, too many
          	unsung / unnamed heroes.
2009-06-07 19:12:08 +00:00
Robert Watson
ff8a07fda2 Add SDT DTrace probes for VFS vnode operations in the vfs:vop
provider namespace.  These are inserted dynamically into the
VOP_..._AP() functions created from vnode_if.src.  Each VOP has
entry and return probes, as arg0 the primary vnode, arg1 the
vnode operation argument structure pointer, providing access to
IN and OUT arguments, and for return probes, arg2 the return
value.

MFC after:	1 month
Sponsored by:	Google, Inc.
2009-03-29 03:30:15 +00:00
John Baldwin
c439bdd86f Remove some unused and broken code that attempted to not invoke locking
asserts on NULL vnode pointers.  All the vnode assertion routines already
check for NULL vnode pointers.
2008-11-03 19:57:40 +00:00
Rafal Jaworowski
fcfdd827d0 Introduce a standalone shell script for embedding MFS image.
This allows to fix a problem with ARM kernel.bin not having the MFS image
embedded: it is objcopied from the kernel.noheader temporary ELF file, which
was not subject to embedding the MFS image previously.

Reviewed by:	imp
Approved by:	cognet (mentor)
2008-02-05 10:46:30 +00:00
Jung-uk Kim
2be4e4713a Catch up with ACPI-CA 20070320 import. 2007-03-22 18:16:43 +00:00
Florent Thoumie
7bd6fde395 - Add Intel firmwares for Intel PRO/Wireless LAN 2100/2200/2915 cards in a
uuencoded format along with their respective LICENSE files.
- Add new share/doc/legal directory to BSD.usr.dist mtree file. This is the
place we install LICENSE files for restricted firmwares.
- Teach firmware(9) and kmod.mk about licensed firmwares. Restricted firmwares
won't load properly unless legal.<name>.license_ack is set to 1, either
via kenv(1) or /boot/loader.conf.

Reviewed by:	mlaier, sam
Permitted by:	Intel (via Andrew Wilson)
MFC after:	1 month
2007-03-02 11:42:56 +00:00
Florent Thoumie
4af453db2c Fix obvious typo (use long name if short name isn't provided).
Reviewed by:	sam
MFC after:	3 days
2007-02-27 16:52:27 +00:00
Luigi Rizzo
33d5497079 Cleanup and document the implementation of firmware(9) based on
a version that i posted earlier on the -current mailing list,
and subsequent feedback received.

The core of the change is just in sys/firmware.h and kern/subr_firmware.c,
while other files are just adaptation of the clients to the ABI change
(const-ification of some parameters and hiding of internal info,
so this is fully compatible at the binary level).

In detail:
- reduce the amount of information exported to clients in struct firmware,
  and constify the pointer;

- internally, document and simplify the implementation of the various
  functions, and make sure error conditions are dealt with properly.

The diffs are large, but the code is really straightforward now (i hope).

Note also that there is a subtle issue with the implementation of
firmware_register(): currently, as in the previous version, we just
store a reference to the 'imagename' argument, but we should rather
copy it because there is no guarantee that this is a static string.
I realised this while testing this code, but i prefer to fix it in
a later commit -- there is no regression with respect to the past.

Note, too, that the version in RELENG_6 has various bugs including
missing locks around the module release calls, mishandling of modules
loaded by /boot/loader, and so on, so an MFC is absolutely necessary
there.  I was just postponing it until this cleanup to avoid doing
things twice.

MFC after: 1 week
2007-02-15 17:21:31 +00:00
John Baldwin
c3e7da2b4c Check for errors when registering and unregistering firmware modules. This
prevents the unfortunate situation whereby one might kldload a firmware
module by hand and later kldunload it while a driver still has an open
reference to it.

MFC after:	1 week
Glanced at by:	iedowse
2006-06-16 21:06:03 +00:00
Diomidis Spinellis
44d6e87b07 - Add two checks for syntax errors
- Improve error reporting
- Remove redundant conditionals
2006-05-30 21:13:28 +00:00
Diomidis Spinellis
f69ec7af12 Assertion code specifications are introduced using special character
sequences that are distinct from comments. %% is used for argument
locks; %! for pre- and post-conditions.
2006-05-30 20:49:54 +00:00
Diomidis Spinellis
3cd6252069 Update usage comment to match reality. 2006-05-26 07:13:26 +00:00
Max Laier
6afd356ecf Fix a leftover "iwi_boot" string.
Submitted by:	gallatin
2006-01-30 16:32:08 +00:00
Max Laier
6aec1278dc firmware(9) is a subsystem to load binary data into the kernel via a
specially crafted module.  There are several handrolled sollutions to this
problem in the tree already which will be replaced with this.  They include
iwi(4), ipw(4), ispfw(4) and digi(4).

No objection from:	arch
MFC after:		2 weeks
X-MFC after:		some drivers have been converted
2006-01-29 02:52:42 +00:00
Dag-Erling Smørgrav
0430a5e289 Eradicate caddr_t from the VFS API. 2005-12-14 00:49:52 +00:00
Dag-Erling Smørgrav
e26b05cf44 Nuke vnodeop_desc.vdesc_transports, which has been unused since the dawn
of time (or the inception of ncvs, whichever came last)
2005-12-14 00:15:11 +00:00
Poul-Henning Kamp
6db1c434a4 Add convenience macros for bus_space usage that doesn't require specification
of bus tag+handle.

Instead of
	bus_space_write_1(sc->tag, sc->handle, ...)
this macros offer
	bus_write_1(sc->resource, ...)

The name+argument transformation is constant and the the macros are
generated (by hand) by the script in tools/bus_macro.sh.
2005-09-24 20:11:07 +00:00
Suleiman Souhlal
679985d03a Allow EVFILT_VNODE events to work on every filesystem type, not just
UFS by:
- Making the pre and post hooks for the VOP functions work even when
DEBUG_VFS_LOCKS is not defined.
- Moving the KNOTE activations into the corresponding VOP hooks.
- Creating a MNTK_NOKNOTE flag for the mnt_kern_flag field of struct
mount that permits filesystems to disable the new behavior.
- Creating a default VOP_KQFILTER function: vfs_kqfilter()

My benchmarks have not revealed any performance degradation.

Reviewed by:	jeff, bde
Approved by:	rwatson, jmg (kqueue changes), grehan (mentor)
2005-06-09 20:20:31 +00:00
Jeff Roberson
680a1ec631 - Add the character "E" to the understood lock types. This means
the VOP requires an exclusive lock.

Sponsored by:	Isilon Systems, Inc.
2005-04-11 15:15:03 +00:00
Poul-Henning Kamp
119798b384 Add VOP_FOO_APV() which takes a pointer to the vop_vector.
This allows stacked or partitioned filesystems to say "Continue
the normal resolution from here", for instace from FFS to UFS.

Use VNASSERT() instead of KASSERT().
2005-02-08 12:54:32 +00:00
Poul-Henning Kamp
de8a6c067a Get rid of the VDESC() macro while the pot is boiling anyway, it is
only used from generate files now, so we might as well generate the
right stuff from the start.
2005-01-13 08:05:20 +00:00