Commit Graph

192613 Commits

Author SHA1 Message Date
Ian Lepore
6b6d6c4437 Create an interface for drivers to enable or disable their clocks as listed
in the clocks=<...> properties of their FDT data.  The clock properties
consist of 2-cell tuples, each containing a clock device node reference and
a clock number.  A clock device driver can register itself as providing
this interface, then other drivers can turn the FDT clock node reference
into the corresponding device_t so that they can use the interface to query
and manipulate their clocks.

This provides convenience functions to enable or disable all the clocks
listed in the properties for a device, so most drivers will be able to
manage their clocks with a single call to fdt_clock_enable_all(dev).
2014-09-02 03:23:05 +00:00
Ian Lepore
60f47da972 The anatop driver controls power and PLLs and needs to be available before
just about anything else (other than octop which provides it config info),
so make it an EARLY_DRIVER_MODULE().
2014-09-02 02:56:43 +00:00
Ian Lepore
866180c3fc The ocotp driver provides access to registers containing chip configuration
data that is needed by other drivers, so make it an EARLY_DRIVER_MODULE()
that loads before just about anything else.
2014-09-02 02:54:55 +00:00
Devin Teske
2c4a847864 Fix a bug where command line arguments could be misprocessed if getopts is
used prior to f_dialog_init() -- e.g., in a script that sets
DIALOG_SELF_INITIALIZE to NULL, preventing f_dialog_init() from being run
automaticaly when `dialog.subr' is included. Caused by sub-shell processing
of arguments inheriting prior value of $OPTIND, used by getopts. Solved by
unsetting OPTIND prior to [re-]processing of positional arguments.
2014-09-01 22:53:47 +00:00
Ian Lepore
274245c881 Create a mechanism for looking up a device_t associated with an ofw/fdt
xref handle, and for registering that association.  Also use the same data
for faster translations between node and xref handles.

Now when fdt properties contain &othernode references, a driver can find
the device instance that corresponds to &othernode, and thus can use
interfaces provided by that instance.

Reviewed by:	nwhitehorn
2014-09-01 22:40:31 +00:00
Pedro F. Giffuni
f4189cd649 Add bsearch_b to the libc map and the stdlib header.
bsearch_b is the Apple blocks enabled version of bsearch(3).
This was added to libc in Revision 264042 but the commit
missed the declaration required to make use of it.

While here move some other block-related functions to the
BSD_VISIBLE block as these are non-standard.

Phabric:	D638
Reviewed by:	theraven, wollman
2014-09-01 22:25:42 +00:00
Ed Schouten
13b7412dad Add -Wthread-safety to WARNS=6.
While there, add a NO_WTHREAD_SAFETY flag that can be used to disable
this specific warning flag. Disable it for auditdistd. We can easily
patch up auditdistd to have the right annotations to build, but as
auditdistd is intended to be portable across other operating systems,
it's not worth the effort.

Approved by:	brueffer@
2014-09-01 20:18:09 +00:00
Ed Schouten
8da5129816 Add lock annotations to libcuse.
- Add annotations to the lock/unlock function to indicate that the
  function is allowed to lock and unlock the underlying pthread mutex.

- Add __guarded_by() annotations to the global variables.

Approved by:	hselasky@
2014-09-01 19:56:28 +00:00
Ian Lepore
8c8f31e7b2 sdhci.h has grown a dependency on sysctl.h, include the latter where needed. 2014-09-01 19:20:34 +00:00
Steve Kargl
733331540a According to the ISO C standard, lgamma(-integer) returns
inf and raises the divided-by-zero exception.  Compilers
constant fold one/zero to inf but do not raise the exception.
Introduce a volatile vzero to prevent the constant folding.

Move the declaration of zero into the main declaration block.

While here, fix a nearby disordering of 'lx,ix'

Discussed with:	bde
2014-09-01 18:57:13 +00:00
Ian Lepore
752ba93078 Rename OF_xref_phandle() to OF_node_from_xref() and add a new function
that provides the inverse translation, OF_xref_from_node().

Discussed with:	nwhitehorn
2014-09-01 18:51:01 +00:00
Ed Schouten
974a10854c Add lock annotations to the threading API used by hastd.
Approved by:	pjd@
2014-09-01 18:37:17 +00:00
Ed Schouten
49891e45d2 Add lock annotations to the header files of our threading libraries.
This change extends all of the functions present in the <pthread.h> and
<threads.h> headers to have lock annotations. This will allow Clang to
warn about the following:

- Locking a function twice,
- Unlocking a function without a mutex being locked,
- Forgetting to unlock a mutex before returning,
- Destroying or reinitializing a mutex that is currenty locked,
- Using an unlocked mutex in combination with a condition variable.

Enabling these annotations already allowed me to catch a bug in one of
our userspace tools (r270749).
2014-09-01 18:34:30 +00:00
Ed Schouten
e562d2dad7 Enable lock annotations on HEAD when using Clang.
MFC after:	never
2014-09-01 18:28:11 +00:00
Ed Schouten
b2d6fddee7 Add lock annotations to <sys/cdefs.h>.
Clang has support for annotating mutexes and code that uses mutexes to
validate certain aspects of thread safety:

- Whether acquiring/releasing locks is done properly (e.g., whether you
  unlock a mutex before leaving a function).
- Whether a lock is held while reading/writing data from/to memory.

Analysis is performed at the function level. Functions can be annotated
to indicate they:

- (try to) pick up a lock,
- release a lock,
- can only be called when (not) holding a lock,
- assert that a lock is held.

Variables and structure members can be annotated to indicate that they
are guarded by a certain lock. In C++, these annotations can refer
to both global variables, but also other class/structure members. In C,
it is only possible to refer to global variables.

This change adds wrappers for the annotations used by Clang to
<sys/cdefs.h>. They currently have no effect, but this is on purpose.
This change will be merged back to FreeBSD 9 and 10, which means we can
safely experiment with these annotations on HEAD without making it
harder to port changes back.

Reviewed by:	announced on arch@ and toolchain@
MFC after:	3 weeks
2014-09-01 18:27:04 +00:00
Stefan Eßer
c1b0ea2c83 Add vt(4) support to the console initialisation script, specifically:
- Identify the console driver used and print syscons or vt as appropriate.

- If vt is used and a keymap could not be loaded, then try to replace the
  keymap name configured in rc.conf based on a replacement list in this
  script. Warn about the fact, that a syscons keyname is configured and
  report the replacement used under vt.

- If no replacement keymap is found, no keymap is loaded and a warning
  is displayed, which points at the conversion script and allows the
  conversion of keymaps not part of the official distribution.

This patch has been sent to the -hackers list for review, but no comment
has been received, yet. It is tested to work under syscons and vt on my
system (on vt with either the syscons or vt keymap file name in rc.conf).

MFC after:	3 days
2014-09-01 16:51:57 +00:00
Stefan Eßer
a8a11edaf8 Final patches to the tools used to convert syscons keymaps for use with
vt.

MFC after:	3 days
2014-09-01 16:26:57 +00:00
Stefan Eßer
320098549a Add references to vt(4) to further man-pages.
MFC after:	3 days
2014-09-01 16:25:08 +00:00
Steve Kargl
e63062b5bf Fix a tab that somehow became 8 spaces.
Remove parentheses in a return statement to be consistent with the
rest of the file.

Rename sin_pi() in the float version to sin_pif().

Remove large comment that precedes sin_pif().  The comment
duplicates a comment in e_lgamma_r.c where the algorithm
is documented.

Requested by:	bde
2014-09-01 16:24:25 +00:00
Stefan Eßer
5c08832dbd Fix typo (by -> be).
MFC after:	3 days
2014-09-01 16:12:29 +00:00
Ian Lepore
156688371b Do not generate unwind info in asm functions if _STANDALONE is defined.
The .fnend op causes the assembler to emit RELOC references to unwind
support functions that don't exist in libstand.
2014-09-01 14:57:04 +00:00
Gleb Smirnoff
c26544aa7f Make SOCK_RAW sockets to be truly raw, not modifying received and sent
packets at all. Swapping byte order on SOCK_RAW was actually a bug, an
artifact from the BSD network stack, that used to convert a packet to
native byte order once it is received by kernel.

Other operating systems didn't follow this, and later other BSD
descendants fixed this, leaving us alone with the bug. Now it is
clear that we should fix the bug.

In collaboration with:	Olivier Cochard-Labbé <olivier cochard.me>
See also:		https://wiki.freebsd.org/SOCK_RAW
Sponsored by:		Nginx, Inc.
2014-09-01 14:04:51 +00:00
Gleb Smirnoff
b616ae250c Explicitly free packet on PF_DROP, otherwise a "quick" rule with
"route-to" may still forward it.

PR:		177808
Submitted by:	Kajetan Staszkiewicz <kajetan.staszkiewicz innogames.de>
Sponsored by:	InnoGames GmbH
2014-09-01 13:00:45 +00:00
Andrey V. Elsukov
ccc53de916 Add the reverse part to rule . Also change its description in the
netstat(8) output.

MFC after:	1 week
2014-09-01 09:30:34 +00:00
Warner Losh
877c97e5bd Resync comments about scbus and pass for life after AHCI joined CAM.
Sponsored by: Netflix
2014-09-01 03:49:21 +00:00
Steve Kargl
795b92049d Compute sin(pi*x) without actually doing the pi*x multiplication.
sin_pi(x) is only called for x < 0 and |x| < 2**(p-1) where p is
the precision of x.  The new argument reduction is an optimization
compared to the old code, and it removes a chunk of dead code.
Accuracy tests in the intervals (-21,-20), (-20,-19), ... (-1,0)
show no differences between the old and new code.

Obtained from:	bde
2014-08-31 21:38:03 +00:00
Marius Strobl
f0d2731dd8 - Nuke unused sdhci_softc.
- Static'ize sdhci_debug local to sdhci.c.
- Const'ify PCI device description strings.
- Nuke redundant resource ID members from sdhci_pci_softc.
- Nuke unused hw.sdhci_pci.debug tunable.
- Add support for using MSI instead of INTx, controllable via the tunable
  hw.sdhci.enable_msi (defaulting to on) and tested with a RICOH R5CE823 SD
  controller.
- Use NULL instead of 0 for pointers.

MFC after:	3 days
2014-08-31 17:56:54 +00:00
Ruslan Bukin
99d7e0a9a8 GIC (Cortex A's interrupt controller) supports up to 1020 IRQs. 2014-08-31 17:40:19 +00:00
Alan Cox
01a8fb7db5 Automatically prefault a limited number of mappings to resident pages in
shmat(2), just like mmap(2).

MFC after:	5 days
Sponsored by:	EMC / Isilon Storage Division
2014-08-31 17:38:41 +00:00
Ian Lepore
f2e71517e0 In ARM asm code, ensure that every ENTRY(foo) has a matching END(foo).
The EABI unwind info requires a .fnend for every .fnstart, and newer
binutils will complain about seeing two .fnstart in a row.  This change
allows newer tools to compile our code.

Reported by:	bapt
Reviewed by:	imp
2014-08-31 17:21:51 +00:00
Ian Lepore
93844d3203 Put option FDT into the base IMX6 config and remove it from the config
of boards based on IMX6.
2014-08-31 15:25:40 +00:00
Ian Lepore
46dd56e781 The Marvell PJ4B cpu family is armv7, not armv6. 2014-08-31 15:23:49 +00:00
Gleb Smirnoff
ccbefc2dfa Toss fields so that no padding field is required to achieve alignment. 2014-08-31 13:30:54 +00:00
Gleb Smirnoff
09a8241fc9 It is actually possible to have if_t a typedef to non-void type,
and keep both converted to drvapi and non-converted drivers
compilable.

o Make if_t typedef to struct ifnet *.
o Remove shim functions.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2014-08-31 12:48:13 +00:00
Gleb Smirnoff
997d2d833f Provide pointer from struct ifnet to struct netmap_adapter,
instead of abusing spare field.
2014-08-31 11:33:19 +00:00
Gavin Atkinson
91804910e2 Fix character case in examples for "camcontrol security" - should be
"-U user" not "-u user".

PR:		193179
Submitted by:	milios ccsys com
MFC after:	3 days
2014-08-31 10:28:31 +00:00
Peter Wemm
d903c21a64 Move the restored #ifdef i386 test back inside the #ifdef _KERNEL block
where it originally was.
2014-08-31 09:05:02 +00:00
Gleb Smirnoff
e6485f73de o Remove struct if_data from struct ifnet. Now it is merely API structure
for route(4) socket and ifmib(4) sysctl.
o Move fields from if_data to ifnet, but keep all statistic counters
  separate, since they should disappear later.
o Provide function if_data_copy() to fill if_data, utilize it in routing
  socket and ifmib handler.
o Provide overridable ifnet(9) method to fetch counters. If no provided,
  if_get_counters_compat() would be used, that returns old counters.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2014-08-31 06:46:21 +00:00
Gleb Smirnoff
546451a2e5 Use macros instead of referencing struct if_data that resides in ifnet.
Sponsored by:	Nginx, Inc.
2014-08-31 06:30:50 +00:00
Gleb Smirnoff
178b14d674 Remove ability to write to struct if_data residing in struct ifnet
via net.link.generic.IFMIB_IFDATA.*.IFDATA_GENERAL sysctl. Reasons
for removal are:
- No code in tree uses this possibility.
- The documentation ifmib(4) doesn't say that such possibility
  exist. The example provided in manual page only reads data.
- On many interfaces the feature simply doesn't work, since they
  do accounting in hardware, and overwrite if_data on tick.

Sponsored by:	Nginx, Inc.
2014-08-31 06:23:54 +00:00
Warner Losh
081ea6e2ce Import from rebasing repo at b78b6b80 (new files) 2014-08-31 04:55:32 +00:00
Warner Losh
d1ca9b39dc Import from rebasing repo at b78b6b80 2014-08-31 04:34:12 +00:00
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
Ian Lepore
4863c75af7 Fix the handling of MMU type in the AP entry code. The ARM_MMU_V6/V7
symbols are always #defined to 0 or 1, so use #if SYM not #if defined(SYM).
Also, it helps if you include the header file that defines the symbols.
2014-08-30 22:21:57 +00:00
Steven Hartland
92ac3eb59f Ensure that ZFS ARC free memory checks include cached pages
Also restore kmem_used() check for i386 as it has KVA limits that the raw
page counts above don't consider

PR:		187594
Reviewed by:	peter
X-MFC-With: r270759
Review:	D700
Sponsored by:	Multiplay
2014-08-30 21:44:32 +00:00
Michael Tuexen
65d495a87e Enable SCTP support. It runs perfectly fine on a Wandboard quad.
MFC after: 3 days
2014-08-30 20:18:47 +00:00
Michael Tuexen
3cb6ceedb7 Remove FDT option, since it is in every file, which includes this one. 2014-08-30 20:00:18 +00:00
Neel Natu
4c98655ece The "SUB" instruction used in getcc() actually does 'x -= y' so use the
proper constraint for 'x'. The "+r" constraint indicates that 'x' is an
input and output register operand.

While here generate code for different variants of getcc() using a macro
GETCC(sz) where 'sz' indicates the operand size.

Update the status bits in %rflags when emulating AND and OR opcodes.

Reviewed by:	grehan
2014-08-30 19:59:42 +00:00
Gleb Smirnoff
1bffa9511f Use define from if_var.h to access a field inside struct if_data,
that resides in struct ifnet.

Sponsored by:	Nginx, Inc.
2014-08-30 19:55:54 +00:00
Neel Natu
04da7226c4 Set the 'inst_length' to '0' early on before any error conditions are detected
in the emulation of the task switch. If any exceptions are triggered then the
guest %rip should point to instruction that caused the task switch as opposed
to the one after it.
2014-08-30 18:35:16 +00:00