Commit Graph

1431 Commits

Author SHA1 Message Date
attilio
9ff3491e67 MFC 2011-05-13 20:58:48 +00:00
attilio
fe4de567b5 Commit the support for removing cpumask_t and replacing it directly with
cpuset_t objects.
That is going to offer the underlying support for a simple bump of
MAXCPU and then support for number of cpus > 32 (as it is today).

Right now, cpumask_t is an int, 32 bits on all our supported architecture.
cpumask_t on the other side is implemented as an array of longs, and
easilly extendible by definition.

The architectures touched by this commit are the following:
- amd64
- i386
- pc98
- arm
- ia64
- XEN

while the others are still missing.
Userland is believed to be fully converted with the changes contained
here.

Some technical notes:
- This commit may be considered an ABI nop for all the architectures
  different from amd64 and ia64 (and sparc64 in the future)
- per-cpu members, which are now converted to cpuset_t, needs to be
  accessed avoiding migration, because the size of cpuset_t should be
  considered unknown
- size of cpuset_t objects is different from kernel and userland (this is
  primirally done in order to leave some more space in userland to cope
  with KBI extensions). If you need to access kernel cpuset_t from the
  userland please refer to example in this patch on how to do that
  correctly (kgdb may be a good source, for example).
- Support for other architectures is going to be added soon
- Only MAXCPU for amd64 is bumped now

The patch has been tested by sbruno and Nicholas Esborn on opteron
4 x 12 pack CPUs. More testing on big SMP is expected to came soon.
pluknet tested the patch with his 8-ways on both amd64 and i386.

Tested by:	pluknet, sbruno, gianni, Nicholas Esborn
Reviewed by:	jeff, jhb, sbruno
2011-05-05 14:39:14 +00:00
jhb
08955ceac0 Change rman_manage_region() to actually honor the rm_start and rm_end
constraints on the rman and reject attempts to manage a region that is out
of range.
- Fix various places that set rm_end incorrectly (to ~0 or ~0u instead of
  ~0ul).
- To preserve existing behavior, change rman_init() to set rm_start and
  rm_end to allow managing the full range (0 to ~0ul) if they are not set by
  the caller when rman_init() is called.
2011-04-29 18:41:21 +00:00
jhb
6a4b2fc4dc Fix build of this kernel config. The ath(4) bits need the 11n frame format
even though ar5416 isn't enabled.

Reviewed by:	adrian
2011-04-29 14:01:49 +00:00
attilio
d685681d59 Add the watchdogs patting during the (shutdown time) disk syncing and
disk dumping.
With the option SW_WATCHDOG on, these operations are doomed to let
watchdog fire, fi they take too long.

I implemented the stubs this way because I really want wdog_kern_*
KPI to not be dependant by SW_WATCHDOG being on (and really, the option
only enables watchdog activation in hardclock) and also avoid to
call them when not necessary (avoiding not-volountary watchdog
activations).

Sponsored by:	Sandvine Incorporated
Discussed with:	emaste, des
MFC after:	2 weeks
2011-04-28 16:02:05 +00:00
mav
519a30551e - Add shim to simplify migration to the CAM-based ATA. For each new adaX
device in /dev/ create symbolic link with adY name, trying to mimic old ATA
numbering. Imitation is not complete, but should be enough in most cases to
mount file systems without touching /etc/fstab.
 - To know what behavior to mimic, restore ATA_STATIC_ID option in cases
where it was present before.
 - Add some more details to UPDATING.
2011-04-26 17:01:49 +00:00
cognet
86e3f53481 Typo fix 2011-04-25 18:15:45 +00:00
mav
512a6cd715 Switch the GENERIC kernels for all architectures to the new CAM-based ATA
stack. It means that all legacy ATA drivers are disabled and replaced by
respective CAM drivers. If you are using ATA device names in /etc/fstab or
other places, make sure to update them respectively (adX -> adaY,
acdX -> cdY, afdX -> daY, astX -> saY, where 'Y's are the sequential
numbers for each type in order of detection, unless configured otherwise
with tunables, see cam(4)).

ataraid(4) functionality is now supported by the RAID GEOM class.
To use it you can load geom_raid kernel module and use graid(8) tool
for management. Instead of /dev/arX device names, use /dev/raid/rX.
2011-04-24 08:58:58 +00:00
pluknet
a0f46fc78d Call init_param1() much earlier, so that msgbufsize is non-zero when we want
to map and use the msgbuf.

Reviewed by:	cognet
MFC after:	1 week
2011-04-19 15:05:12 +00:00
philip
8b4ad037ac Delete mistakenly added sys/files.ts7800
Add mistakenly forgotten sys/arm/conf/TS7800

Not sure how this happened.  Apologies for the repo-churn.

Submitted by:	glebius
Pointy hat to:	philip
2011-04-18 12:27:57 +00:00
philip
7df95651a2 Add basic support for the Marvell Orion TS-7800.
Submitted by:	Kristof Provost <kristof -at- freebsd.org>
2011-04-15 13:37:43 +00:00
hselasky
69b34d187e We don't need to call EOWRITE4(sc, EHCI_USBINTR, 0) directly from each EHCI
bus driver at detach, hence ehci_detach() does exactly this since r199718.

Submitted by:	Luiz Otavio O Souza
MFC after:	7 days
Approved by:	thompsa (mentor)
2011-04-12 07:49:11 +00:00
hselasky
58267dbb2e - Correct EHCI interrupt disabling at detach.
Submitted by:	Luiz Otavio O Souza
MFC after:	7 days
Approved by:	thompsa (mentor)
2011-04-03 20:17:49 +00:00
adrian
6f4c1d61a6 Break out the ath PCI logic into a separate device/module.
Introduce the AHB glue for Atheros embedded systems. Right now it's
hard-coded for the AR9130 chip whose support isn't yet in this HAL;
it'll be added in a subsequent commit.

Kernel configuration files now need both 'ath' and 'ath_pci' devices; both
modules need to be loaded for the ath device to work.
2011-03-31 08:07:13 +00:00
marcel
fe1990038f Fix mv_gpio_in() for pin numbers that occupy bits 8-31 in GPIO registers.
The compiler will truncate the 32-bit return value of mv_gpio_value_get()
to match the 8-bit return value of mv_gpio_in(). A conditional expression
is used to have mv_gpio_in() always return 0 or 1 instead.
2011-03-16 00:42:15 +00:00
jkim
193712e7cf Make get_cyclecount(9) little bit more useful where binuptime(9) is used. 2011-03-14 23:30:14 +00:00
dchagin
69b8756d3d Extend struct sysvec with new method sv_schedtail, which is used for an
explicit process at fork trampoline path instead of eventhadler(schedtail)
invocation for each child process.

Remove eventhandler(schedtail) code and change linux ABI to use newly added
sysvec method.

While here replace explicit comparing of module sysentvec structure with the
newly created process sysentvec to detect the linux ABI.

Discussed with:	kib

MFC after:	2 Week
2011-03-08 19:01:45 +00:00
rwatson
4c48fabb06 Continue to introduce Capsicum capability mode:
White list sysarch calls allowed in capability mode; arguably, there
should be some link between the capability mode model and the privilege
model here.  Sysarch is a morass similar to ioctl, in many senses.

Submitted by:	anderson
Discussed with:	benl, kris, pjd
Sponsored by:	Google, Inc.
Obtained from:	Capsicum Project
MFC after:	3 months
2011-03-01 13:35:48 +00:00
obrien
c8765c79d9 Add a real dependency on the microcode.
Now when one does 'make kernel ; make kernel' the second invocation
only does:  `kernel.ko' is up to date.
rather than reproduce all the binary microcode files and relink the kernel.
[continuation of r212429]
2011-02-25 09:07:17 +00:00
cognet
5dc900439d Get myself a brain, move the call to init_param1() before the first use in
at91_machdep.c, and do it for the files I forgot the first time

Reported by:	andrew
Submitted by:	pluknet
2011-02-21 13:11:05 +00:00
brucec
6d9b42b486 Fix typos - remove duplicate "the".
PR:	bin/154928
Submitted by:	Eitan Adler <lists at eitanadler.com>
MFC after: 	3 days
2011-02-21 09:01:34 +00:00
marcel
5222466d89 Fix the R_ARM_ABS32 relocation implementation. The memory address
contains the addend that we need to include.

Obtained from: Juniper Networks.
Fixed by: Santhanakrishnan Balraj <sbalraj@juniper.net>
2011-02-17 19:31:21 +00:00
alc
2f4da8e71e Remove pmap fields that are either unused or not fully implemented.
Discussed with:	kib
2011-02-17 15:36:29 +00:00
cognet
5f20e78b99 Oops, wasn't supposed to commit this. 2011-02-13 20:04:29 +00:00
cognet
12f7536b5e Call init_param1() much earlier, so that msgbufsize is non-zero when we want
to map and use the msgbuf.
2011-02-13 20:02:46 +00:00
jhb
059cd3cb74 Whitespace tweak. 2011-02-09 14:37:33 +00:00
marcel
cdf278387f In arm_get_next_irq(), use the last IRQ argument in order to prevent
a hard hang due to an interrupt storm or stuck interrupt pin. We
return the next IRQ that is larger than the last one returned and
in doing so give all interrupts a fair chance of being handled.
Consequently, we're able to break into the kernel debugger in such
an event.
2011-02-08 01:49:30 +00:00
marcel
cc3f43e6b2 o Make sure to mask off timer1 interrupts. It's not necessarily
masked-off by the firmware.
o   In DELAY(). Make sure we have an inner-loop body that the compiler
    cannot eliminate. While timing does not have to be perfect, the
    loops must be there to have at least some notion of delay.

Obtained from: Juniper Networks
2011-02-08 01:43:45 +00:00
marcel
afb715ad58 Remove use_high from the softc and simply check the number of GPIO
pins to determine whether there's a high register set or not. This
allows platform_gpio_init() to work without duplicating the work
done in the attach method.
2011-02-07 05:36:32 +00:00
ticso
4054909b91 unbreak mutlicast hash creation for the second time.
at91_emac hardware is *not* using ether_crc32_be algorithm!
2011-02-07 01:13:57 +00:00
imp
84d5c43402 phys_addr is a PA not a VA so declare it as a vm_paddr_t not a vm_offset_t. 2011-02-05 03:36:34 +00:00
imp
e6672e4eca Make md_tp a register_t not a void *. This will keep us from
accidentally dereferencng it and might be one fewer things to change
if arm64 happens...

Submitted by:	rwatson's question on irc...
2011-02-05 03:30:29 +00:00
marcel
2a507fec61 The FDT describes the host controller directly. There's no need to
get properties from the parent. The parent is in fact the FDT bus
itself and will therefore not have the properties we're looking
for.

Sponsored by: Juniper Networks
2011-02-03 18:07:05 +00:00
marcel
59a8457a98 Accept r1 as having the metadata pointer argument if r0 is 0.
This provides backward compatibility with Juniper loaders.

Sponsored by: Juniper Networks
2011-02-03 17:35:16 +00:00
mdf
b291e9a365 Put the general logic for being a CPU hog into a new function
should_yield().  Use this in various places.  Encapsulate the common
case of check-and-yield into a new function maybe_yield().

Change several checks for a magic number of iterations to use
should_yield() instead.

MFC after:	1 week
2011-02-02 16:35:10 +00:00
marcel
97b823bf51 Introduce macro FDT_MAP_IRQ to map from an interrupt controller and
interrupt pin pair to a global IRQ number. When multiple PICs exist
on a board, the interrupt pin alone is not unique.
2011-01-29 20:25:20 +00:00
andrew
0b5604dcfb Move the load address of the kernel to the start of KVA as the
s3c24x0 copy of initarm expects the kernel to be loaded there.

Approved by:	imp (mentor)
2011-01-29 00:46:11 +00:00
marcel
9e953ad74a Fix r217688. We need to call init_param1() before we use msgbufsize,
now that the size of the message buffer is a tunable.
2011-01-22 01:31:59 +00:00
marcel
2d20aaad9b Fix backtraces by defining ksym_start & ksym_end if DDB is
defined. The kernel linker doesn't deal with symbols of
type NOTYPE and typically gives the wrong symbol ($a) for
local symbols.

Obtained from:  Juniper Networks, Inc.
2011-01-22 00:32:12 +00:00
pluknet
5f536fc1d3 Make MSGBUF_SIZE kernel option a loader tunable kern.msgbufsize.
Submitted by:	perryh pluto.rain.com (previous version)
Reviewed by:	jhb
Approved by:	kib (mentor)
Tested by:	universe
2011-01-21 10:26:26 +00:00
kib
ef4e87bddc For architectures not using direct map , and requiring real KVA page for
sf buf allocation, use wakeup() instead of wakeup_one() to notify sf
buffer waiters about free buffer.

sf_buf_alloc() calls msleep(PCATCH) when SFB_CATCH flag was given,
and for simultaneous wakeup and signal delivery, msleep() returns
EINTR/ERESTART despite the thread was selected for wakeup_one(). As
result, we loose a wakeup, and some other waiter will not be woken up.

Reported and tested by:	az
Reviewed by:	alc, jhb
MFC after:	1 week
2011-01-18 21:57:02 +00:00
jkim
c94e91a673 Remove empty dev_mem_md_init() stubs. 2011-01-17 23:06:47 +00:00
jkim
ea861abf2a Add reader/writer lock around mem_range_attr_get() and mem_range_attr_set().
Compile sys/dev/mem/memutil.c for all supported platforms and remove now
unnecessary dev_mem_md_init().  Consistently define mem_range_softc from
mem.c for all platforms.  Add missing #include guards for machine/memdev.h
and sys/memrange.h.  Clean up some nearby style(9) nits.

MFC after:	1 month
2011-01-17 22:58:28 +00:00
marcel
a001bebbff Don't re-use MODINFOMD_BOOTINFO as MODINFOMD_DTBP. It breaks
compatibility without any means for the kernel to work with
an older loader.
2011-01-11 22:07:39 +00:00
jhb
c17f46e472 Remove unneeded includes of <sys/linker_set.h>. Other headers that use
it internally contain nested includes.

Reviewed by:	bde
2011-01-11 13:59:06 +00:00
kib
4f8260e700 Move repeated MAXSLP definition from machine/vmparam.h to sys/vmmeter.h.
Update the outdated comments describing MAXSLP and the process
selection algorithm for swap out.

Comments wording and reviewed by:	alc
2011-01-09 12:50:44 +00:00
tijl
89281909e1 On mixed 32/64 bit architectures (mips, powerpc) use __LP64__ rather than
architecture macros (__mips_n64, __powerpc64__) when 64 bit types (and
corresponding macros) are different from 32 bit. [1]

Correct the type of INT64_MIN, INT64_MAX and UINT64_MAX.

Define (U)INTMAX_C as an alias for (U)INT64_C matching the type definition
for (u)intmax_t. Do this on all architectures for consistency.

Suggested by:	bde [1]
Approved by:	kib (mentor)
2011-01-08 12:43:05 +00:00
tijl
61d89c0b21 On 32 bit architectures define (u)int64_t as (unsigned) long long instead
of (unsigned) int __attribute__((__mode__(__DI__))). This aligns better
with macros such as (U)INT64_C, (U)INT64_MAX, etc. which assume (u)int64_t
has type (unsigned) long long.

The mode attribute was used because long long wasn't standardised until
C99. Nowadays compilers should support long long and use of the mode
attribute is discouraged according to GCC Internals documentation.

The type definition has to be marked with __extension__ to support
compilation with "-std=c89 -pedantic".

Discussed with:	bde
Approved by:	kib (mentor)
2011-01-08 11:47:55 +00:00
tijl
af03e997ba Fix types of some values in machine/_limits.h.
On some architectures UCHAR_MAX and USHRT_MAX had type unsigned int.
However, lacking integer suffixes for types smaller than int, their type
should correspond to that of an object of type unsigned char (or short)
when used in an expression with objects of type int. In that case unsigned
char (short) are promoted to int (i.e. signed) so the type of UCHAR_MAX and
USHRT_MAX should also be int.

Where MIN/MAX constants implicitly have the correct type the suffix has
been removed.

While here, correct some comments.

Reviewed by:	bde
Approved by:	kib (mentor)
2011-01-08 11:13:34 +00:00
tijl
69f9492737 Remove unused support for 64 bit long on 32 bit architectures.
It was used mainly to discover and fix some 64-bit portability problems
before 64-bit arches were widely available.

Discussed with:	bde
Approved by:	kib (mentor)
2011-01-07 22:57:31 +00:00
kib
ed862725de Add AT_STACKPROT elf aux vector. Will be used to inform rtld about the
initial stack protection set by the kernel image activator.
2011-01-07 14:22:34 +00:00
jhb
ae4deb7aad Remove bogus usage of INTR_FAST. "Fast" interrupts are now indicated by
registering a filter handler rather than a threaded handler.  Also remove
a bogus use of INTR_MPSAFE for a filter.
2011-01-06 21:08:06 +00:00
jhb
7ac38a901b - Add a proper return value to mv_gpio_intr().
- Remove an obsolete use of INTR_FAST.
2011-01-06 21:03:55 +00:00
jhb
1e0411c61a - Use macbstart_locked() directly instead of deferring it to a task.
- Expand locking scope in interrupt handler.
- Flesh out the detach routine.

Reviewed by:	cognet
2011-01-06 19:32:00 +00:00
imp
8c8b0b95fd Remove support for SKYEYE simulator 2011-01-05 23:45:07 +00:00
imp
97b4cbd8b4 Remove ancient simulation code. Skyeye simulation never really worked
quite right and hasn't been used in ages and is likely broken.  QEMU
with GUMSTIX is a more promising road to FreeBSD/arm in emulation
anyway.

Reviewed by:	cognet@
2011-01-05 22:15:57 +00:00
imp
f21cfeb4a0 IXP4XX_GPIO_{,UN}LOCK() don't take args. Remove the sc here to make
this compile again.
2010-12-23 19:28:50 +00:00
kevlo
92646cacc6 Fix double ;; 2010-12-06 10:24:06 +00:00
brucec
6e3faf1602 Revert r216134. This checkin broke platforms where bus_space are macros:
they need to be a single statement, and do { } while (0) doesn't work in this
situation so revert until a solution can be devised.
2010-12-03 07:09:23 +00:00
brucec
dc1c4b9270 Disallow passing in a count of zero bytes to the bus_space(9) functions.
Passing a count of zero on i386 and amd64 for [I386|AMD64]_BUS_SPACE_MEM
causes a crash/hang since the 'loop' instruction decrements the counter
before checking if it's zero.

PR:	kern/80980
Discussed with:	jhb
2010-12-02 22:19:30 +00:00
thompsa
62bef117d8 Provide a mutex around the read/modify/write of the IXP425_GPIO_*
registers. Giant was used in some places, but not all.
2010-11-14 20:41:22 +00:00
thompsa
c08375b9a1 Add a GPIO driver for the Gateworks Cambria platform.
The external gpio pins are connected to a PLD on the i2c bus, unfortunatley
this device does not conform by failing to send an ack after each byte written.
The iicbb driver will abort the transfer when the address is not ack'd and it
would introduce a lot of churn to be able to pass a flag down to
iicbb_start/iicbb_write. Instead we do bad things by grabbing the iicbus but
then doing our own bit banging.
2010-11-11 20:18:33 +00:00
ticso
a1b6fa69a6 add hint for at45d flash device sitting of spibus0 2010-11-11 15:02:14 +00:00
jhb
acd72eb169 - Remove <machine/mutex.h>. Most of the headers were empty, and the
contents of the ones that were not empty were stale and unused.
- Now that <machine/mutex.h> no longer exists, there is no need to allow it
  to override various helper macros in <sys/mutex.h>.
- Rename various helper macros for low-level operations on mutexes to live
  in the _mtx_* or __mtx_* namespaces.  While here, change the names to more
  closely match the real API functions they are backing.
- Drop support for including <sys/mutex.h> in assembly source files.

Suggested by:	bde (1, 2)
2010-11-09 20:46:41 +00:00
brucec
696c4e1f9b Fix typos.
PR:	bin/148894
Submitted by:	olgeni
2010-11-09 10:59:09 +00:00
kevlo
95d0fe5a46 Minor cosmetic changes 2010-11-09 09:34:21 +00:00
kevlo
a12134382b Intel IXP425 SoC is based on the ARMv5TE architecture
MFC after:	3 days
2010-11-08 07:54:24 +00:00
thompsa
ad0631f04c Remove line for the uncommitted Cambria gpio drive that snuck in with r214946. 2010-11-07 20:38:14 +00:00
thompsa
bbf314b5f5 Hook up the five gpio pins on the Avila board to the gpio framework. There are
actually 16 I/O lines but the other ones are used for system devices and
interrupts.

The IXP4XX platform can set interrupts on these pins for
high/low/rising/falling/transitional but this is not implemented yet.

The Cambria has the same interface but as all the pins are assigned to system
functions the gpio header is toggled via a PLD on the i2c bus and is not
supported by this commit.
2010-11-07 20:33:39 +00:00
jhb
45c0759920 Adjust the order of operations in spinlock_enter() and spinlock_exit() to
work properly with single-stepping in a kernel debugger.  Specifically,
these routines have always disabled interrupts before increasing the nesting
count and restored the prior state of interrupts after decreasing the nesting
count to avoid problems with a nested interrupt not disabling interrupts
when acquiring a spin lock.  However, trap interrupts for single-stepping
can still occur even when interrupts are disabled.  Now the saved state of
interrupts is not saved in the thread until after interrupts have been
disabled and the nesting count has been increased.  Similarly, the saved
state from the thread cannot be read once the nesting count has been
decreased to zero.  To fix this, use temporary variables to store interrupt
state and shuffle it between the thread's MD area and the appropriate
registers.

In cooperation with:	bde
MFC after:     1 month
2010-11-05 13:42:58 +00:00
cognet
71407681fd Try to be a little smart at guessing where _start is located in flash, instead
of relying on a binutils bug.

Reported by:	dim
2010-11-01 21:04:23 +00:00
mav
d5157b7469 Set of legacy mode SATA enchancements:
- Implement proper combined mode decoding for Intel controllers to properly
identify SATA and PATA channels and associate ATA channels with SATA ports.
This fixes wrong reporting and in some cases hard resets to wrong SATA ports.
- Improve SATA registers support to handle hot-plug events and potentially
interface errors. For ICH5/6300ESB chipsets these registers accessible via
PCI config space. For later ones they may be accessible via PCI BAR(5).
- For controllers not generating interrupts on hot-plug events, implement
periodic status polling. Use it to detect hot-plug on Intel and VIA
controllers. Same probably could also be used for Serverworks and SIS.
2010-10-18 11:30:13 +00:00
marius
10c1b7cca4 Remove a device_printf() accidentally left in r213894.
Submitted by:	jhb
2010-10-15 15:16:36 +00:00
marius
ac757f20dd Converted the remainder of the NIC drivers to use the mii_attach()
introduced in r213878 instead of mii_phy_probe(). Unlike r213893 these
are only straight forward conversions though.

Reviewed by:	yongari
2010-10-15 15:00:30 +00:00
marius
385153aa98 Convert the PHY drivers to honor the mii_flags passed down and convert
the NIC drivers as well as the PHY drivers to take advantage of the
mii_attach() introduced in r213878 to get rid of certain hacks. For
the most part these were:
- Artificially limiting miibus_{read,write}reg methods to certain PHY
  addresses; we now let mii_attach() only probe the PHY at the desired
  address(es) instead.
- PHY drivers setting MIIF_* flags based on the NIC driver they hang
  off from, partly even based on grabbing and using the softc of the
  parent; we now pass these flags down from the NIC to the PHY drivers
  via mii_attach(). This got us rid of all such hacks except those of
  brgphy() in combination with bce(4) and bge(4), which is way beyond
  what can be expressed with simple flags.

While at it, I took the opportunity to change the NIC drivers to pass
up the error returned by mii_attach() (previously by mii_phy_probe())
and unify the error message used in this case where and as appropriate
as mii_attach() actually can fail for a number of reasons, not just
because of no PHY(s) being present at the expected address(es).

Reviewed by:	jhb, yongari
2010-10-15 14:52:11 +00:00
cognet
e795b45f17 Add the QILA9G20 config files.
Submitted by:	Greg Ansley
2010-10-06 22:41:32 +00:00
cognet
3a67028003 Add support for the AT91SAM9260
Submitted by:	Greg Ansley
2010-10-06 22:40:27 +00:00
cognet
776b19482a Add the AT91SAM9G20EK config files.
Submitted by:	Greg Ansley
2010-10-06 22:32:31 +00:00
cognet
2edabad8a4 if_ate.c:
* Support for sam9 "EMAC" controller.
    * Support for rmii interface to phy.

at91.c & at91sam9.c:

    * Eliminate separate at91sam9.c file.
    * Add new devices to at91sam9_devs table.

at91_machdep.c & at at91sam9_machdep.c:

    * Automatic chip type determination.
    * Remove compile time chip dependencies.
    * Eliminate separate at91sam9_machdep.c file.

at91_pmc.c:

    * Corrected support for all of the sam926? and sam9g20 chips.
    * Remove compile time chip dependencies.

My apologies to Greg for taking so long to take care of it.
2010-10-06 22:25:21 +00:00
ticso
1735f36856 fix outdated comment 2010-09-28 21:13:54 +00:00
ticso
0901947e8d The TWI controller automatically stops if we don't fill up with new data in
time.
2010-09-27 15:58:19 +00:00
ticso
79e7676578 fix off by one error for twi reads with len != 1.
STOP must be requested before the last byte is received.
2010-09-27 15:55:30 +00:00
mav
ac1d9eedaf Add basic cpu_sleep() support for Marvell SoCs. This drops my SheevaPlug's
heatsink termperature in open air from 49C to 43C when idle.
2010-09-18 16:57:05 +00:00
mav
7066648caf Clear timer interrupt status before calling callback, not after it,
This fixes timer interrupt losses, fatal in one-shot mode.
2010-09-18 13:44:39 +00:00
cognet
624f75c1e1 In pmap_remove_all(), do not decrease pm_stats.wired_count if the mapping was
wired, as it's been done later in pmap_nuke_pv().

Submitted by:	Mark Tinguely
2010-09-12 20:46:32 +00:00
avg
c9fe8ad7f0 bus_add_child: change type of order parameter to u_int
This reflects actual type used to store and compare child device orders.
Change is mostly done via a Coccinelle (soon to be devel/coccinelle)
semantic patch.
Verified by LINT+modules kernel builds.

Followup to:	r212213
MFC after:	10 days
2010-09-10 11:19:03 +00:00
emax
baa1b2ead9 Add custom kernel configuration and device tree source files for
Seagate FreeAgent DockStar(tm) device. It seems to be a dumb down
version of Marvell SheevaPlug. Device tree source file could use
more tweaking, but at least it wll network boot and run FreeBSD/arm.
2010-09-08 19:50:47 +00:00
kib
d9f088a03e Supply some useful information to the started image using ELF aux vectors.
In particular, provide pagesize and pagesizes array, the canary value
for SSP use, number of host CPUs and osreldate.

Tested by:	marius (sparc64)
MFC after:	1 month
2010-08-17 08:55:45 +00:00
jhb
1c3734f021 Update various places that store or manipulate CPU masks to use cpumask_t
instead of int or u_int.  Since cpumask_t is currently u_int on all
platforms this should just be a cosmetic change.
2010-08-11 23:22:53 +00:00
jhb
f27c8b35e2 Very rough first cut at NUMA support for the physical page allocator. For
now it uses a very dumb first-touch allocation policy.  This will change in
the future.
- Each architecture indicates the maximum number of supported memory domains
  via a new VM_NDOMAIN parameter in <machine/vmparam.h>.
- Each cpu now has a PCPU_GET(domain) member to indicate the memory domain
  a CPU belongs to.  Domain values are dense and numbered from 0.
- When a platform supports multiple domains, the default freelist
  (VM_FREELIST_DEFAULT) is split up into N freelists, one for each domain.
  The MD code is required to populate an array of mem_affinity structures.
  Each entry in the array defines a range of memory (start and end) and a
  domain for the range.  Multiple entries may be present for a single
  domain.  The list is terminated by an entry where all fields are zero.
  This array of structures is used to split up phys_avail[] regions that
  fall in VM_FREELIST_DEFAULT into per-domain freelists.
- Each memory domain has a separate lookup-array of freelists that is
  used when fulfulling a physical memory allocation.  Right now the
  per-domain freelists are listed in a round-robin order for each domain.
  In the future a table such as the ACPI SLIT table may be used to order
  the per-domain lookup lists based on the penalty for each memory domain
  relative to a specific domain.  The lookup lists may be examined via a
  new vm.phys.lookup_lists sysctl.
- The first-touch policy is implemented by using PCPU_GET(domain) to
  pick a lookup list when allocating memory.

Reviewed by:	alc
2010-07-27 20:33:50 +00:00
andrew
a656afced5 Allow external interrupts.
- Set the external pin to interrupt in bus_setup_intr
- Implement bus_config_intr for external interrupts
- Extend arm_{,un}mask_irq to work with external interrupts

Approved by:	imp (mentor)
2010-07-24 23:41:09 +00:00
andrew
1ac6286cc1 Add the s3c24x0 real time clock driver
Approved by:	imp (mentor)
2010-07-22 23:23:39 +00:00
andrew
621cb47cb7 Rework how device memory is allocated on the s3c24x0 CPU's.
The device virtual addresses are now able to be allocated at runtime rather
than from the static pmap_devmap at boot. The only exception is memory
required before we have had a chance to dynamically allocate it.

While here reduce the space between the statically allocated devices by
reducing the distance between the virtual addresses.

Approved by:	imp (mentor)
2010-07-22 23:12:19 +00:00
mav
0ea74c96a2 Fix several un-/signedness bugs of r210290 and r210293. Add one more check. 2010-07-20 15:48:29 +00:00
mav
2a5fe2d038 Refactor Marvell ARM SoC timer driver to the new timer infrastructure. 2010-07-20 11:46:45 +00:00
raj
38ed317cdb Now that we are fully FDT-driven on MRVL platforms, remove PHYSMEM_SIZE option. 2010-07-19 19:19:33 +00:00
raj
287c5fdf95 Eliminate FDT_IMMR_VA define.
This removes platform dependencies from <machine>/fdt.h for the benfit of
portability.
2010-07-19 18:47:18 +00:00
raj
1dddc6de1e Move MRVL FDT fixups and PIC decode routine to a platform specific area.
This allows for better encapsulation (and eliminates generic fdt_arm.c, at
least for now).
2010-07-19 18:41:50 +00:00
cognet
9de4c6a9a1 Import preliminary support for Atmel AT91SAM9G20 cpu, and the Hot-e HL201.
This fine work was done by Yohanes Nugroho <yohanes a gmail dot com>
Many thanks to John Nicholls and Thinlinx for providing sample hardware.
2010-07-14 00:48:53 +00:00
raj
ca95c68e7d Get rid of bootinfo for good in loader (U-Boot-based) and ARM.
For FDT-enabled platforms the device tree is a modern replacement for bootinfo
config data.
2010-07-11 21:11:23 +00:00
jhb
de324e256c Move prototypes for kern_sigtimedwait() and kern_sigprocmask() to
<sys/syscallsubr.h> where all other kern_<syscall> prototypes live.
2010-06-30 18:03:42 +00:00
raj
fe3438c772 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
cognet
4caf6504e1 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
raj
899d644ff3 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
raj
48f2ce50e5 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
raj
9195421e5e Initial FDT infrastructure elements for ARM.
Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2010-06-13 13:12:52 +00:00
raj
44fa1b9b0c Improve style. 2010-06-13 13:08:23 +00:00
alc
6a3535c3fa 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
alc
7c212e010d 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
alc
b11ca4bc20 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
alc
6d887343cf In pmap_enter_locked(), don't require the vector page to be VPO_BUSY. 2010-06-01 05:32:59 +00:00
alc
3f1d4b057c 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
raj
4dbde3c9b9 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
alc
32b13ee957 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
kib
4208ccbe79 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
alc
f6c07c5b87 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
cognet
d8410244c7 Catchup with new prototype for db_printf(). 2010-05-14 00:00:19 +00:00
kevlo
08f80e1af0 The FA526 belongs to the ARM9TDMI family 2010-05-12 05:50:56 +00:00
alc
40b44f9713 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
kevlo
497dc1cc7b Add support for FA626TE.
Tested on GM8181 development board.
2010-05-04 10:14:05 +00:00
sobomax
213eac1f2c 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
mav
071496a9c7 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
kmacy
1dc1263413 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
kib
e20b2d597f 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
alc
0a905b1db9 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
kib
e91c695f77 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
thompsa
bd3f3db8dd 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
imp
7631143fbc Add BUS_SPACE_UNRESTRICTED and define it to be ~0, just like all the
other platforms.
2010-04-08 19:34:55 +00:00
mav
2fee190b89 Oops! Wrong copy-paste in r206053. 2010-04-01 19:05:43 +00:00
mav
dda331b169 Fill extended ATA command registers in cPRD to support 48bit commands. 2010-04-01 18:17:53 +00:00
imp
093b7d0bb1 Build modules for this config to make sure they stay buildable... 2010-03-29 22:29:41 +00:00
rpaulo
4b5d4f0024 Pass the correct pointer to fled_cb(). 2010-03-26 18:49:43 +00:00
nwhitehorn
d63c82a6ac 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
cognet
78363cb373 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
imp
08f20b36f7 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
ticso
2e508fb884 fix type in comment 2010-03-12 22:39:35 +00:00
raj
b083928295 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
raj
9540239dfe 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
raj
98316db4c6 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
ticso
abfd522124 simplify hash calculation 2010-02-28 18:06:54 +00:00
ticso
675be0dbc7 remove debug leftover 2010-02-28 16:14:34 +00:00
ticso
e48555b36f Fix multicast hashes.
Atmel uses a simple xor hash instead of the typical crc based one.
2010-02-28 16:11:13 +00:00
raj
65cd95baea 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
brucec
83c4cf226c 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
rpaulo
7028f4570c 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
kevlo
034d4828d9 Show the cpu info for fa526
Submitted by:	Yohanes Nugroho <yohanes at gmail dot com>
2010-02-20 14:54:11 +00:00
kevlo
e91ec6df83 Correct both FA526/FA626TE cpu ids since the cpu id is always
masked with 0xfffffff0
2010-02-20 14:52:07 +00:00
imp
b9e425b3c9 The NetBSD Foundation has granted permission to remove clauses 3 and 4.
Obtained from:	NetBSD
2010-02-16 21:59:17 +00:00
attilio
b9f41eb470 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
kevlo
cfd3fb9998 Correct cpu id for FA526.
While I'm here, add cpu id for FA626TE.
2010-02-14 05:02:08 +00:00