Commit Graph

678 Commits

Author SHA1 Message Date
imp
ceddc20728 MFp4: Make it work :-)
o Don't delay when checking the done bits.  There's no gain other
	  than a small performance hit.
	o calculate the clock divisors better (things are still way slow,
	  so maybe there's more here?)
	o don't always fail reset.  Always succeed instead.
	o fix inverted logic around at91_twi_wait() return value
	o remove debug code
	o remove unneeded, unworking junk
2006-11-22 06:51:59 +00:00
kevlo
b38795bee6 Match bus space unmap prototype.
Approved by: cognet
2006-11-20 13:21:02 +00:00
imp
5df82d7e99 MFp4: Tweak descriptions in preparation for porting to other members of
the AT91 arm9 family.
2006-11-20 06:27:15 +00:00
sam
9eab840888 config for Gateworks Avila board booting with NFS-mounted root on npe0
Reviewed by:	cognet, imp
MFC after:	1 month
2006-11-19 23:58:12 +00:00
sam
ea8c3a2c48 Gateworks Avila board support:
o ixp425 support
o NPE network driver (requires Intel microcode)
o h/w qmgr support
o True IDE compact flash over expansion bus
o pci (ath and hifn795x parts tested)
o xscale watchdog timer
o ds1672 RTC on i2c bus
o ad7418 voltage + temp monitoring on i2c bus
o uart

Work done together with cognet, kevlo, and jmg.  Parts of
the ixp425 support obtaine/derived from netbsd.

Reviewed by:	cognet, imp
MFC after:	1 month
2006-11-19 23:55:23 +00:00
sam
023ec0dcbf change bus space unmap protoype
Reviewed by:	cognet, imp
MFC After:	1 month
2006-11-19 23:47:51 +00:00
sam
6f04d0fe06 correct bus space unmap prototype
Reviewed by:	cognet, imp
MFC after:	1 month
2006-11-19 23:46:50 +00:00
sam
958a76563e elaborate on stepping names; add intel terminology to help
people cross-referencing intel docs

Reviewed by:	imp, cognet
MFC after:	1 month
2006-11-19 23:45:33 +00:00
cognet
c1bbb4897d Erm we really want to mask all interrupts in the range, just not the first
one.

Submitted by:	ru
2006-11-17 11:56:56 +00:00
kevlo
a75c025373 Compile -- remove an unused global variable avail_end.
Approved by: cognet
2006-11-17 00:53:39 +00:00
ru
8beeb4382c Fix a comment. 2006-11-13 06:26:57 +00:00
alc
6093953d36 Make pmap_enter() responsible for setting PG_WRITEABLE instead
of its caller.  (As a beneficial side-effect, a high-contention
acquisition of the page queues lock in vm_fault() is eliminated.)
2006-11-12 21:48:34 +00:00
alc
760248140c Eliminate unused global variables. 2006-11-11 20:57:52 +00:00
alc
917d191eab MFamd64/ia64/i386/sun4v
Use cnt.v_page_count, the actual count of available physical pages,
  instead of vm_page_array_size to compute the maximum number of pv
  entries.
2006-11-08 06:31:28 +00:00
cognet
d64324b021 Increate cnt.v_intr on interrupt. 2006-11-08 01:32:24 +00:00
cognet
6c634eded7 Identify the xscale 81342. 2006-11-07 22:36:57 +00:00
cognet
d086fc78af In the ARM_USE_SMALL_ALLOC case, vm_page_t may have an address < KERNBASE,
so adjust the KASSERT to reflect this.
2006-11-07 22:35:30 +00:00
cognet
d9c8d94a60 Add atomic_cmpset_acq_32. 2006-11-07 11:53:44 +00:00
imp
bac59c3a27 MFp4:
o Fix the packet statistics
	o Make sure we set the FD bit when in full duplex
	o Improve TX side efficency by eliminating a data copy for
	  unfragmented mbufs (the hardware can't do s/g).
	o Minor busdma pedantry
	o better comments in some places, more XXX in others
	o Minor style nits.

This solves a problem I was seeing where I'd get no ethernet when not
booting with a NFS root.  Well, unless I unplugged the cable and
plugged it back in first so I'd get the same up down up messages I get
for NFS root...

Thanks to sam and scottl for suggestions on making this driver more
efficient through better use of approrpiate APIs.
2006-11-03 07:39:37 +00:00
cognet
87614bd3fe Do not include both <sys/types.h> and <sys/param.h>, it is a style bug as
sys/types.h is included in sys/param.h, so instead just move the
#include <sys/param.h> before the headers that need it.

Spotted out by:	bde
2006-11-01 12:41:43 +00:00
jb
d2bd807356 Add a cnputs() function to write a string to the console with
a lock to prevent interspersed strings written from different CPUs
at the same time.

To avoid putting a buffer on the stack or having to malloc one,
space is incorporated in the per-cpu structure. The buffer
size if 128 bytes; chosen because it's the next power of 2 size
up from 80 characters.

String writes to the console are buffered up the end of the line
or until the buffer fills. Then the buffer is flushed to all
console devices.

Existing low level console output via cnputc() is unaffected by
this change. ithread calls to log() are also unaffected to avoid
blocking those threads.

A minor change to the behaviour in a panic situation is that
console output will still be buffered, but won't be written to
a tty as before. This should prevent interspersed panic output
as a number of CPUs panic before we end up single threaded
running ddb.

Reviewed by:	scottl, jhb
MFC after:	2 weeks
2006-11-01 04:54:51 +00:00
cognet
b52ff25a92 Include <sys/types.h>, to get definition for uint32_t.
Submitted by:	David Sharp
2006-10-30 23:23:00 +00:00
jb
d20db01f97 Remove the KSE option now that it's in DEFAULTS on these arches/machines.
The 'nooption' kernel config entry has to be used to turn KSE off now.
This isn't my preferred way of dealing with this, but I'll defer to
scottl's experience with the io/mem kernel option change and the grief
experienced over that.

Submitted by:	scottl@
2006-10-26 22:11:35 +00:00
jb
f82c799735 Make KSE a kernel option, turned on by default in all GENERIC
kernel configs except sun4v (which doesn't process signals properly
with KSE).

Reviewed by:	davidxu@
2006-10-26 21:42:22 +00:00
cognet
012f0cc576 Let allow to teardown multiple irqs as well. 2006-10-25 21:11:46 +00:00
cognet
1716b74849 Setup multiple interrupts if needed. 2006-10-25 21:00:08 +00:00
imp
d7da10161e MFp4: Move the parameters that are basically dictated by the AT91
organization to that file.
2006-10-25 08:00:11 +00:00
imp
d7e5c47a91 MFp4: Status register bits 2006-10-25 07:58:18 +00:00
cognet
3c4525479b Ooops, dump_avail[i] can be 0 if the RAM starts at 0x00000000, so check that
dump_avail[i + 1] is == 0 as a stop condition instead.
MFC after: 3 days
2006-10-24 23:27:52 +00:00
kevlo
8659159398 style(9) cleanup.
Approved by: cognet
2006-10-21 04:25:00 +00:00
cognet
b4b85ee027 Ok I am an idiot. On 32 bits big-endian systems, it is needed to handle the
syscalls using __syscall but only actually returning 32bits, such as mmap(),
specially : they set the return value in td->td_retval[0], but the userland
functions will expect this in r1, and not in r0 as it is normally done, as it
is the LSB. So add a special case for all these syscalls (all except lseek,
which truly returns 64bits).

Many thanks to Peter Grehan for his patience while explaining me the issue.
2006-10-21 00:46:56 +00:00
cognet
35034161dd Use __QUAD_LOWWORD for __syscall, to always use the good word, whatever the
endianness is.
2006-10-20 22:40:31 +00:00
cognet
e9b25c9592 There's no need to special-case lseek for arm/big-endian. 2006-10-20 11:00:03 +00:00
imp
c24d0dcbc6 MFp4: Working SPI driver. 2006-10-20 07:10:13 +00:00
imp
105dd71b16 Commit WIP SSC driver, more work is needed here, but it configures
things OK.
2006-10-20 07:08:59 +00:00
imp
dbcd7809d1 More register definitions. 2006-10-20 07:08:15 +00:00
imp
22d781c5e8 Progress commit for getting TWI working 2006-10-20 07:06:39 +00:00
imp
e08539a4c7 Add sysctl to export current state of rmii vs mii configuraiton.
Fix a typo in resource allocation.
2006-10-20 07:04:56 +00:00
imp
4084c0b8bc Add configuration of the SSC lines for second SSC. 2006-10-20 07:03:57 +00:00
imp
3434ef1d27 MMC/SD bridge driver (host adapter) for AT91RM9200's MCI interface.
This interface also appears in the AT91SAM9260 and '61 as well as the
AVR32 based micros from Atmel.  We don't yet support write protect or
hot-swap in this bridge driver.
2006-10-20 06:44:04 +00:00
davidxu
bb5a3880aa o Add keyword volatile for user mutex owner field.
o Fix type consistent problem by using type long for old
  umtx and wait channel.
o Rename casuptr to casuword.
2006-10-17 02:24:47 +00:00
jb
bf543444cf PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
MFC after:
Security:
Move the relocation definitions to the common elf header so that DTrace
can use them on one architecture targeted to a different one.

Add the additional ELF types defines in Sun's "Linker and Libraries"
manual.
2006-10-04 21:37:10 +00:00
phk
50c81b8a9a First part of a little cleanup in the calendar/timezone/RTC handling.
Move relevant variables to <sys/clock.h> and fix #includes as necessary.

Use libkern's much more time- & spamce-efficient BCD routines.
2006-10-02 12:59:59 +00:00
kan
c9b2659ee8 Use __builtin_va_start instead of __builtin_stdarg_start. GCC4 obsoletes
the former and  __builtin_va_start was present in all GCC version 3.1 and
later.
2006-09-21 01:37:02 +00:00
imp
6af2f13b58 MFp4: first cut at getting I2C transfers working (generically). I'm
unsure if this driver correctly implements all the start/stop junk
right (but it did or didn't before I made this commit).
2006-09-07 21:53:28 +00:00
imp
423b53ad2f MFp4: berndt pointed me at an errata that shows that the stat register
offsets were originally documented incorrectly.  This fixes that.  It
shouldn't affect anything other than error stat reporting.
2006-09-07 21:50:01 +00:00
cognet
56796490ea Remove dead code, already defined in sys/cdef.h
Spotted out by:	bde
2006-08-30 11:45:07 +00:00
cognet
192d7d2aa6 Use ENTRY_NP for alternate entry points instead of ENTRY to avoid calling
mcount twice when profiling.

Spotted out by:	bde
2006-08-30 11:44:37 +00:00
cognet
8397e9dcdc Use ENTRY instead of ALTENTRY, it doesn't exist on arm. 2006-08-29 23:53:34 +00:00
cognet
ecf44c474e Ooops m->md.pvh_attrs can't be used to know if the page is writeable, because
it only remembers if the page is modified or referenced.

Bad review from:	cognet
2006-08-28 21:43:34 +00:00
cognet
fa893a6f9c Relocate the vector page for AT91, to work around bugs with the LOW_VECTOR
code.
2006-08-28 20:05:00 +00:00
davidxu
87b5aa08ee Implement casuword32, compare and set user integer, thank Marcel Moolenarr
who wrote the IA64 version of casuword32.
2006-08-28 02:28:15 +00:00
cognet
15bd8c41bf Fill in dump_avail[] before pmap_boostrap() is called so that
ARM_USE_SMALL_ALLOC work.
2006-08-27 13:23:51 +00:00
alc
72ff1a9186 Eliminate unused definitions. (They came from NetBSD.)
Discussed with: cognet, grehan, marcel
2006-08-25 23:51:11 +00:00
cognet
53e0a06a26 Explicitely set the "allocbuffer" field to NULL when creating a new dmamap. 2006-08-25 15:10:45 +00:00
cognet
3748f87bf1 Do not create dma maps with bus_dmamap_create, as we call
bus_dmamem_alloc later which will overwrite the value, leading to a small
memory leak.
2006-08-25 13:38:42 +00:00
cognet
d4600e67df Finally bring it support for the i80219 XScale processor.
Submitted by:	Max M. Boyarov <m.boyarov bsd by>
2006-08-24 23:51:28 +00:00
cognet
ccd457af25 Use ELFDATA2MSB if we're building big endian.
Noticed by:	Oleksandr Tymoshenko <gonzo freebsd org>
2006-08-24 23:00:03 +00:00
imp
95a426fdc6 add comment about why we include opt_global.h 2006-08-15 18:11:25 +00:00
cognet
d7e3bf9763 Ooops we need to include <machine/vmparam.h> to get the definition of
KERNBASE and VM_MAXUSER_ADDRESS.
Remove the useless include of opt_global.h, as noticed by netchild@ (the one
in arm/elf_trampoline.c is legit, because this file is compiled outside the
kernel, and doesn't use the standard CFLAGS).
2006-08-15 16:43:07 +00:00
imp
8d1199edcd Hook into the watchdog device, if present. Also, turn off the
watchdog timer stuff when we boot because the boot blocks are turning
it on...
2006-08-09 20:58:55 +00:00
cognet
2d628bb4d9 Rewrite ARM_USE_SMALL_ALLOC so that instead of the current behavior, it maps
whole the physical memory, cached, using 1MB section mappings. This reduces
the address space available for user processes a bit, but given the amount of
memory a typical arm machine has, it is not (yet) a big issue.
It then provides a uma_small_alloc() that works as it does for architectures
which have a direct mapping.
2006-08-08 20:59:38 +00:00
kevlo
ae60705942 Remove a bogus i = 0.
Approved by: cognet
2006-08-08 01:18:18 +00:00
alc
a152234cf9 Complete the transition from pmap_page_protect() to pmap_remove_write().
Originally, I had adopted sparc64's name, pmap_clear_write(), for the
function that is now pmap_remove_write().  However, this function is more
like pmap_remove_all() than like pmap_clear_modify() or
pmap_clear_reference(), hence, the name change.

The higher-level rationale behind this change is described in
src/sys/amd64/amd64/pmap.c revision 1.567.  The short version is that I'm
trying to clean up and fix our support for execute access.

Reviewed by: marcel@ (ia64)
2006-08-01 19:06:06 +00:00
jhb
3a707d012d Retire SYF_ARGMASK and remove both SYF_MPSAFE and SYF_ARGMASK. sy_narg is
now back to just being an argument count.
2006-07-28 20:22:58 +00:00
jhb
c62c38439f Now that all system calls are MPSAFE, retire the SYF_MPSAFE flag used to
mark system calls as being MPSAFE:
- Stop conditionally acquiring Giant around system call invocations.
- Remove all of the 'M' prefixes from the master system call files.
- Remove support for the 'M' prefix from the script that generates the
  syscall-related files from the master system call files.
- Don't explicitly set SYF_MPSAFE when registering nfssvc.
2006-07-28 19:05:28 +00:00
jhb
12302c47d0 Unify the checking for lock misbehavior in the various syscall()
implementations and adjust some of the checks while I'm here:
- Add a new check to make sure we don't return from a syscall in a critical
  section.
- Add a new explicit check before userret() to make sure we don't return
  with any locks held.  The advantage here is that we can include the
  syscall number and name in syscall() whereas that info is not available
  in userret().
- Drop the mtx_assert()'s of sched_lock and Giant.  They are replaced by
  the more general checks just added.

MFC after:	2 weeks
2006-07-27 22:32:30 +00:00
cognet
eb22761b8a Define BYTE_MSF if we're compiling a big endian kernel, so that DDB can
correctly disassemble instructions on big endian.
2006-07-27 11:41:37 +00:00
cognet
405961b2ae Use virtual_avail instead of freemempos as the starting point of the available
physical memory, as the vm uses the memory between freemempos and
virtual_avail.

MFC After:	3 days
2006-07-25 23:07:35 +00:00
kevlo
9600c80b61 Cleanup.
Approved by: cognet
2006-07-25 01:08:41 +00:00
alc
51bab356f5 Implement pmap_clear_write().
Discussed with: cognet@
2006-07-20 23:26:22 +00:00
cognet
83a16c4049 Fix ALT_BREAK_TO_DEBUGGER on the AT91 :
The core uart code expects the receive method to actually puts the
characters read into its buffers. For AT91, it's done in the ipend routine,
so also check if we have the alternate break sequence here.

MFC after:	3 days
2006-07-20 21:03:43 +00:00
cognet
c601d0f319 Make sure we use REDUCE32 on the result of do_cksum(), as in_cksum_skip()
expects this. If we do not, this could result in wrong checksums.

MFC after:	1 day
2006-07-18 00:07:05 +00:00
cognet
34956b2cd0 If we can't defrag a packet, re-queue it instead of dropping it. 2006-07-17 21:36:08 +00:00
cognet
68d3bbc684 #if => #ifdef 2006-07-17 21:20:00 +00:00
cognet
010b2aa1be at91_spi won't compile without spibus, so add it. 2006-07-17 21:17:20 +00:00
cognet
8b02dff467 Oops bring back code that shouldn't have been removed by the previous
commit.
2006-07-15 23:15:31 +00:00
cognet
f4ecac7c4e Make sure that if uma_small_alloc() gets called recursively, we just give up
and call kmem_malloc(), to avoid a deadlock.
2006-07-15 23:01:54 +00:00
cognet
1d520bd714 Add a comment explaining why the OHCI mapping has been commented out. 2006-07-15 00:09:53 +00:00
imp
29ab994ef0 MFp4: this now depends on new spi bus stuff 2006-07-14 22:41:54 +00:00
imp
a3607b2b33 MFp4: tweaks 2006-07-14 22:40:24 +00:00
imp
60a615aa4e MFp4: elevate quality of slow clock a little 2006-07-14 22:31:12 +00:00
imp
a96b0fc43f MFp4: paren police 2006-07-14 22:30:44 +00:00
imp
1248744935 MFp4:
Introduce framework to configure the multiplexed pins on boot.

	Since the USART supprots RS-485 multidrop mode, it allows the
	TX pins to float.  However, for RS-232 operations, we don't
	want these pins to float.  Instead, they should be pulled up
	to avoid mismatches.  Linux does something similar when it
	configures the TX lines.  This implies that we also allow the
	RX lines to float rather than be in the state they are left in
	by the boot loader.  Since they are input pins, I think that
	this is the right thing to do.

	Plus minor for our board.
2006-07-14 22:22:57 +00:00
imp
de4939a282 MFp4:
Fix typo in RTC_CALR_MK.
2006-07-14 22:06:01 +00:00
imp
05cb2db736 The TSC board uses a 16MHz base clock for the AT91RM9200, while the Kwikbyte
board uses a 10MHz base clock.  Cope with this difference.
2006-07-14 22:01:51 +00:00
imp
3b9505ced7 Implement the set_time function. Rather pointless with this RTC, as it
resets when the core resets, but there may be some use for it...
2006-07-14 21:37:19 +00:00
imp
d9d2d73de5 MF p4:
Adapt to forthcoming spi framework.  The ioctls for SPI commands and such
belong in the higher level driver.
2006-07-14 21:35:59 +00:00
imp
6dccb75673 Be sure to flush the cache after a partial read on timeout. Expand
comments about timeouts.  Fix a style nit.  Sometimes small messages
were getting corrupted.
2006-07-14 21:33:04 +00:00
imp
e5fffb8574 Move some of the common parameters into the std. files for this platform.
Also migrate from MD disk to NFS boot.
2006-07-14 15:20:31 +00:00
cognet
2b9f045c18 Remove prototype for the undefined function counterhandler().
Submitted by:	kevlo
2006-07-14 13:37:47 +00:00
cognet
15c9b6e9df Add remote GDB bits for arm. 2006-07-14 00:50:51 +00:00
jhb
a72b0bcd7f Simplify the pager support in DDB. Allowing different db commands to
install custom pager functions didn't actually happen in practice (they
all just used the simple pager and passed in a local quit pointer).  So,
just hardcode the simple pager as the only pager and make it set a global
db_pager_quit flag that db commands can check when the user hits 'q' (or a
suitable variant) at the pager prompt.  Also, now that it's easy to do so,
enable paging by default for all ddb commands.  Any command that wishes to
honor the quit flag can do so by checking db_pager_quit.  Note that the
pager can also be effectively disabled by setting $lines to 0.

Other fixes:
- 'show idt' on i386 and pc98 now actually checks the quit flag and
  terminates early.
- 'show intr' now actually checks the quit flag and terminates early.
2006-07-12 21:22:44 +00:00
cognet
45301dddff Comment out the mapping of the OHCI controller registers va == pa. This
address is in the userland address space. The proper thing is either to choose
a virtual address in the kernel address space beyond the KVA, or to use
pmap_mapdev().
2006-07-12 00:48:50 +00:00
cognet
510c505cb5 Add a new flag to pmap_enter_locked() to say if it's OK to wait. If it is, and
we're unable to allocate the memory for a PTE, we'll wait until we can. If not,
we'll just return.
Use M_NOWAIT|M_USE_RESERVE to allocate PTEs, it is less aggressive than
M_NOWAIT alone.

Suggested by:   alc
2006-07-11 11:22:06 +00:00
imp
d1b6a98346 Add support for configuring pins to be one of {GPIO, PERIPHERAL A or
PERIPHERAL B}, as well as direction of GPIO pin.  Add defines for all
the pins.
2006-07-02 03:50:44 +00:00
imp
7a60ad8bb4 MFp4:
Make serial ports more robust and reliable.  Make non-console ports
work.  This might have broken skyeye stuff.

o Introduce ping-pong receive buffers.
o Use DMA to copy characters directly into memory.
o Support baud rates other than 115200
o Use 1 stop bit when 1 stop bit is requested (otherwise 2 were used,
  which caused dropped characters when received in bursts).
o Use 1.5 stop bits for 5-bit bytes, and 2 stop bits otherwise when 2
  stop bits were requested.
o Actually update line parameters.
o Fix comments
o Move init into attach
o Tweaks to TX interrupt registers to get them reliable and non-storming.
o harvest data in ipend since the latency between it and the callback
  was too long.  This likely is how it should be, I don't know why I deferred
  things to the callback before.
o disable all interrupts in console init.  We don't want interrupts until
  we turn on an ISR.
o cosmetic tweaks
o Automatically detect of the TIMEOUT interrupt is supported.  If so, use
  it so we get better CPU utilization.  Otherwise do a character at a time
  RX.  Good news here is that it seems we have enough CPU and low enough
  fast interrupt latency to do this reliably.
o Don't read USART_CR.  It is a write-only register.
o start to implement bus_ioctl.  Do BAUD now...
2006-07-02 03:45:33 +00:00
cognet
5688b2b9fa Backout previous commit, Warner committed at91_pio.c... 2006-06-23 23:07:11 +00:00
cognet
39fcd24d6a There's no need to allocate that much phdr/shdr from the stack. 2006-06-23 22:45:35 +00:00
cognet
905a22c391 Add the arm9_setup() prototype. 2006-06-23 22:37:15 +00:00