Commit Graph

731 Commits

Author SHA1 Message Date
Warner Losh
e8c8e11c08 Make this work a lot better:
Remove a lot of older cruft not needed.
	Improve ISR support, but it is still unused since polling is faster
	Properly initalize the speed register to get 90kb/s, not 400b/s.
	Try to catch NACK
	Allow 0 length read transfers to generate start/top pairs.
2006-11-29 08:15:59 +00:00
Warner Losh
ab45d28ce3 MFp4:
correct data counts so that we clock enough data for the spi
	transaction.  This allows complete spi transactions to happen.
2006-11-29 07:57:02 +00:00
Kevin Lo
f1b6520619 Bring in status led support for /dev/led/gpioled on Avila.
Approved by: cognet
2006-11-22 12:57:17 +00:00
Warner Losh
ff7447dae1 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
Kevin Lo
681efe0834 Match bus space unmap prototype.
Approved by: cognet
2006-11-20 13:21:02 +00:00
Warner Losh
111bcda150 MFp4: Tweak descriptions in preparation for porting to other members of
the AT91 arm9 family.
2006-11-20 06:27:15 +00:00
Sam Leffler
d4593bb04f 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 Leffler
e67f80fd20 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 Leffler
faad47108d change bus space unmap protoype
Reviewed by:	cognet, imp
MFC After:	1 month
2006-11-19 23:47:51 +00:00
Sam Leffler
588a2322a9 correct bus space unmap prototype
Reviewed by:	cognet, imp
MFC after:	1 month
2006-11-19 23:46:50 +00:00
Sam Leffler
7fb399a7e5 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
Olivier Houchard
1ea7de37f9 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
Kevin Lo
f43f0196a9 Compile -- remove an unused global variable avail_end.
Approved by: cognet
2006-11-17 00:53:39 +00:00
Ruslan Ermilov
26af9ac7d0 Fix a comment. 2006-11-13 06:26:57 +00:00
Alan Cox
44b8bd66f9 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
Alan Cox
cc0d48ffb6 Eliminate unused global variables. 2006-11-11 20:57:52 +00:00
Alan Cox
e288d71672 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
Olivier Houchard
c162ce855c Increate cnt.v_intr on interrupt. 2006-11-08 01:32:24 +00:00
Olivier Houchard
676b1fbdbf Identify the xscale 81342. 2006-11-07 22:36:57 +00:00
Olivier Houchard
08b91759f3 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
Olivier Houchard
2c7b82c9dd Add atomic_cmpset_acq_32. 2006-11-07 11:53:44 +00:00
Warner Losh
8cd5dc08c3 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
Olivier Houchard
da834c5711 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
John Birrell
3d068827c2 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
Olivier Houchard
c3248b4002 Include <sys/types.h>, to get definition for uint32_t.
Submitted by:	David Sharp
2006-10-30 23:23:00 +00:00
John Birrell
3750d1ecad 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
John Birrell
8460a577a4 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
Olivier Houchard
4e52d86822 Let allow to teardown multiple irqs as well. 2006-10-25 21:11:46 +00:00
Olivier Houchard
0a7b049096 Setup multiple interrupts if needed. 2006-10-25 21:00:08 +00:00
Warner Losh
bc8fe52e6d MFp4: Move the parameters that are basically dictated by the AT91
organization to that file.
2006-10-25 08:00:11 +00:00
Warner Losh
1b104c589a MFp4: Status register bits 2006-10-25 07:58:18 +00:00
Olivier Houchard
d370f1f482 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
Kevin Lo
24ef8c83ee style(9) cleanup.
Approved by: cognet
2006-10-21 04:25:00 +00:00
Olivier Houchard
06e28eec94 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
Olivier Houchard
38b3d206f4 Use __QUAD_LOWWORD for __syscall, to always use the good word, whatever the
endianness is.
2006-10-20 22:40:31 +00:00
Olivier Houchard
40594b3305 There's no need to special-case lseek for arm/big-endian. 2006-10-20 11:00:03 +00:00
Warner Losh
0f1c5aca64 MFp4: Working SPI driver. 2006-10-20 07:10:13 +00:00
Warner Losh
89975186a3 Commit WIP SSC driver, more work is needed here, but it configures
things OK.
2006-10-20 07:08:59 +00:00
Warner Losh
bfa94035b0 More register definitions. 2006-10-20 07:08:15 +00:00
Warner Losh
5f9c612ae7 Progress commit for getting TWI working 2006-10-20 07:06:39 +00:00
Warner Losh
56878d42da 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
Warner Losh
e352ac0afb Add configuration of the SSC lines for second SSC. 2006-10-20 07:03:57 +00:00
Warner Losh
e41e815e5c 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
David Xu
5f641fc0fb 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
John Birrell
6825d60738 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
Poul-Henning Kamp
f645b0b51c 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
Alexander Kabaev
d9cb97ff9d 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
Warner Losh
656595aa63 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
Warner Losh
5dced01e59 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
Olivier Houchard
4731df1ee7 Remove dead code, already defined in sys/cdef.h
Spotted out by:	bde
2006-08-30 11:45:07 +00:00
Olivier Houchard
d50cc5583f 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
Olivier Houchard
1b980732bb Use ENTRY instead of ALTENTRY, it doesn't exist on arm. 2006-08-29 23:53:34 +00:00
Olivier Houchard
89413e6217 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
Olivier Houchard
f35ea630e9 Relocate the vector page for AT91, to work around bugs with the LOW_VECTOR
code.
2006-08-28 20:05:00 +00:00
David Xu
66e1c26dba 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
Olivier Houchard
2df5885cb9 Fill in dump_avail[] before pmap_boostrap() is called so that
ARM_USE_SMALL_ALLOC work.
2006-08-27 13:23:51 +00:00
Alan Cox
b554f899bd Eliminate unused definitions. (They came from NetBSD.)
Discussed with: cognet, grehan, marcel
2006-08-25 23:51:11 +00:00
Olivier Houchard
5bbbbe1b2a Explicitely set the "allocbuffer" field to NULL when creating a new dmamap. 2006-08-25 15:10:45 +00:00
Olivier Houchard
223d2768ad 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
Olivier Houchard
11d1528ce0 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
Olivier Houchard
ba282be9f3 Use ELFDATA2MSB if we're building big endian.
Noticed by:	Oleksandr Tymoshenko <gonzo freebsd org>
2006-08-24 23:00:03 +00:00
Warner Losh
751a10df01 add comment about why we include opt_global.h 2006-08-15 18:11:25 +00:00
Olivier Houchard
0638c88517 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
Warner Losh
27e13f2b3e 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
Olivier Houchard
49953e11d7 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
Kevin Lo
400e3077d8 Remove a bogus i = 0.
Approved by: cognet
2006-08-08 01:18:18 +00:00
Alan Cox
78985e424a 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
John Baldwin
cb76d9b05c 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
John Baldwin
af5bf12239 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
John Baldwin
22ea1bc57a 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
Olivier Houchard
9c8cab3814 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
Olivier Houchard
f9ad2af361 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
Kevin Lo
c4a6fb0610 Cleanup.
Approved by: cognet
2006-07-25 01:08:41 +00:00
Alan Cox
7e8041d356 Implement pmap_clear_write().
Discussed with: cognet@
2006-07-20 23:26:22 +00:00
Olivier Houchard
bba93a0066 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
Olivier Houchard
8067ea809e 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
Olivier Houchard
9488796360 If we can't defrag a packet, re-queue it instead of dropping it. 2006-07-17 21:36:08 +00:00
Olivier Houchard
0769e20256 #if => #ifdef 2006-07-17 21:20:00 +00:00
Olivier Houchard
5fdfd0f9fc at91_spi won't compile without spibus, so add it. 2006-07-17 21:17:20 +00:00
Olivier Houchard
dcbed85b6e Oops bring back code that shouldn't have been removed by the previous
commit.
2006-07-15 23:15:31 +00:00
Olivier Houchard
ac6eccb3ec 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
Olivier Houchard
22e1aadef7 Add a comment explaining why the OHCI mapping has been commented out. 2006-07-15 00:09:53 +00:00
Warner Losh
8397a1b15c MFp4: this now depends on new spi bus stuff 2006-07-14 22:41:54 +00:00
Warner Losh
382ff28ef2 MFp4: tweaks 2006-07-14 22:40:24 +00:00
Warner Losh
2b85629b2f MFp4: elevate quality of slow clock a little 2006-07-14 22:31:12 +00:00
Warner Losh
872a109182 MFp4: paren police 2006-07-14 22:30:44 +00:00
Warner Losh
546bbbb56f 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
Warner Losh
fa543fe2fa MFp4:
Fix typo in RTC_CALR_MK.
2006-07-14 22:06:01 +00:00
Warner Losh
92c23aea4a 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
Warner Losh
375906f555 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
Warner Losh
21caaf799a 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
Warner Losh
567314271b 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
Warner Losh
7d73db6491 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
Olivier Houchard
3fffb1631a Remove prototype for the undefined function counterhandler().
Submitted by:	kevlo
2006-07-14 13:37:47 +00:00
Olivier Houchard
be050429a3 Add remote GDB bits for arm. 2006-07-14 00:50:51 +00:00
John Baldwin
19e9205a23 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
Olivier Houchard
8f395fae42 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
Olivier Houchard
8f68b4a607 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
Warner Losh
7fd083a540 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
Warner Losh
d8927f1396 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
Olivier Houchard
39a0c069fa Backout previous commit, Warner committed at91_pio.c... 2006-06-23 23:07:11 +00:00
Olivier Houchard
9effaba942 There's no need to allocate that much phdr/shdr from the stack. 2006-06-23 22:45:35 +00:00
Olivier Houchard
211d1ec5a8 Add the arm9_setup() prototype. 2006-06-23 22:37:15 +00:00
Olivier Houchard
e45fb59abe Comment out at91_pio.c, it's not in CVS. 2006-06-23 22:30:55 +00:00
Olivier Houchard
f8910b42c8 arm9_setup() is now needed even if we're not using a gzipped kernel, so move
it outside the #ifdef KZIP

Pointy Hat to:	cognet
2006-06-22 22:33:21 +00:00
Warner Losh
a64011a08b Nitsville: the routine is called initarm, not init_arm, correct it in
a comment.
2006-06-21 23:47:25 +00:00
Olivier Houchard
d0a6d18d1a Don't forget to define uart_sa1110_vaddr.
Submitted by:	kevlo
2006-06-21 10:56:59 +00:00
Warner Losh
c0386612b8 Compute physmem so we can print it correctly on boot.
Slightly optimize while I'm here.
2006-06-20 23:40:04 +00:00
Warner Losh
57dc2664ef Probe the memory size of the board better. Look at the bus width,
number of banks, rows and columns the SDRAMC is programmed to access
to determine the RAM size for the board, rather than hard-wiring it to
be 32MB.  My company's board with 64MB now probes correctly, as does
the KB9202 with only 32MB.  This means that to detect the right memory
size, our boot loader must correctly initialize these values.  This is
a fairly safe assumption because the boot loader has to initialize
SDRAM already, and it isn't really possible to change this register
after we've accessed SDRAM.
2006-06-20 20:13:40 +00:00
Olivier Houchard
08459723d8 Make sure the stack is properly aligned.
Enable the MMU when relocating as well, and use write-through cache.
2006-06-18 22:46:30 +00:00
Warner Losh
a1295da1fd comment out twi for now: no iicbus in KB920X: it breaks booting 2006-06-17 23:34:59 +00:00
Warner Losh
aee1351504 Carefully note the RMII bit in the config register at attach time.
The boot loader is supposed to leave this bit set to the right value
for the board.  If this bit was set at attach time, use it to init the
config register correctly.

Note: this means the boot loader has to properly initialize it.
2006-06-17 23:24:35 +00:00
Warner Losh
0ca5ce8fee improve reporting of clocks 2006-06-17 23:22:10 +00:00
Alexander Leidinger
28a3ae7f88 Remove COMPAT_43 from GENERIC (and other kernel configs). For amd64 there's
an explicit comment that it's needed for the linuxolator. This is not the
case anymore. For all other architectures there was only a "KEEP THIS".
I'm (and other people too) running a COMPAT_43-less kernel since it's not
necessary anymore for the linuxolator. Roman is running such a kernel for a
for longer time. No problems so far. And I doubt other (newer than ia32
or alpha) architectures really depend on it.

This may result in a small performance increase for some workloads.

If the removal of COMPAT_43 results in a not working program, please
recompile it and all dependencies and try again before reporting a
problem.

The only place where COMPAT_43 is needed (as in: does not compile without
it) is in the (outdated/not usable since too old) svr4 code.

Note: this does not remove the COMPAT_43TTY option.

Nagging by:	rdivacky
2006-06-15 19:58:53 +00:00
Stephan Uphoff
2053c12705 Remove mpte optimization from pmap_enter_quick().
There is a race with the current locking scheme and removing
it should have no measurable performance impact.
This fixes page faults leading to panics in pmap_enter_quick_locked()
on amd64/i386.

Reviewed by: alc,jhb,peter,ps
2006-06-15 01:01:06 +00:00
Olivier Houchard
ee8ecea34b MFp4:
- Try hard to calculate a safe sp, so that the stack doesn't get smashed
while uncompressing or relocating the kernel.
- Bring in code needed to calculate the cacheline size etc, needed for
arm9_idcache_wbinv_all.
2006-06-12 22:58:50 +00:00
Olivier Houchard
9464ffd0a4 MFp4: Increase the L1 pagetable needed for the kernel from 8 to 22, to be
able to boot fat kernels.
2006-06-12 22:57:24 +00:00
Alan Cox
fd5cb69756 Remove pmap_pagedaemon_waken and update pmap_get_pv_entry() to match the
current interface with the machine-independent layer.  Without this change,
the page daemon would only have been awakened the first time that the
number of pv entries went above the high water mark, not each time.
2006-06-11 04:53:06 +00:00
Alan Cox
2087cafb70 Eliminate spl calls. 2006-06-11 04:14:36 +00:00
Alan Cox
8bf9b9233d Add a lock assertion. Remove dead (locking) code. Change some white
space.

Reviewed by: cognet@
2006-06-10 05:20:18 +00:00
Alan Cox
24ea27ad1a Add pmap locking to pmap_extract().
Tested by: cognet@
2006-06-09 03:54:20 +00:00
Olivier Houchard
2d0105632f Oops it seems I forgot to remove ARM32_NEW_VM_LAYOUT from here. 2006-06-07 22:41:14 +00:00
Alan Cox
f6ed7d306b Add pmap locking to pmap_fault_fixup().
Add an assertion to pmap_vac_me_harder().

Tested by: cognet@
2006-06-07 20:54:31 +00:00
Alan Cox
7a5f63430e Properly synchronize access to the pmap in pmap_extract_and_hold().
Eliminate an unneeded variable from pmap_extract_and_hold().

Tested by: cognet@
2006-06-07 17:14:48 +00:00
Olivier Houchard
c1bfc47fa7 Now that we use pmap_mapdev_boostrap(), we can get ride of the got_mmu
hack.

Submitted by:	kevlo
2006-06-07 11:28:17 +00:00
Warner Losh
3dcdad9a11 Remove sa1_cache_clean_addr. It isn't needed.
Submitted by: kevlo
2006-06-07 05:36:10 +00:00
Olivier Houchard
d661dc8070 Convert the last offender, the SA1110 port, to ARM32_NEW_VM_LAYOUT, and
completely nuke the !ARM32_NEW_VM_LAYOUT case.
2006-06-06 21:06:57 +00:00
Olivier Houchard
410a42a1b6 Remove a bogus, useless, "i++". 2006-06-06 20:47:59 +00:00
Alan Cox
d39d8f0f8c Add partial pmap locking.
Tested by: cognet@
2006-06-06 17:27:53 +00:00
Alan Cox
ed48a217f6 Add partial pmap locking.
Eliminate the unused allpmaps list.

Tested by: cognet@
2006-06-06 04:32:20 +00:00
Olivier Houchard
f14c3a8aac Make VERBOSE_INIT_ARM compile by fixing various printf formats, and add it
as an option.

Submitted by:   Max N. Boyarov <m.boyarov at bsd dot by>
2006-06-06 01:14:12 +00:00
Olivier Houchard
ceff114886 vm_page_alloc_contig() can sleep, so don't even think about using it
in the M_NOWAIT case.
2006-06-05 23:42:47 +00:00
Alan Cox
ce142d9ec0 Introduce the function pmap_enter_object(). It maps a sequence of resident
pages from the same object.  Use it in vm_map_pmap_enter() to reduce the
locking overhead of premapping objects.

Reviewed by: tegge@
2006-06-05 20:35:27 +00:00
Olivier Houchard
b2adc703fd Don't #error if no CPU is defined but we're not compiling the kernel. 2006-06-02 09:39:06 +00:00
Olivier Houchard
27b45ae819 Don't enable the FIQ in enable_interrupts() if F32_bit is not specified.
This has been committed by mistake.

Reported by:	ssouhlal
2006-06-01 16:17:44 +00:00
Alan Cox
d49e4d3f55 Introduce pmap_enter_locked() and use it to reimplement pmap_enter_quick().
Tested by: cognet@
2006-06-01 01:31:07 +00:00
Olivier Houchard
c7f17eb45c Avoid a LOR by unlocking the vm_page_queue_mtx before calling uma_zalloc,
and freeing the allocated memory if another thread already did the same.
2006-05-31 15:52:11 +00:00
Olivier Houchard
4cd3385ee3 If our buffer is not aligned on the cache line size, write back/invalidate
the first and last cache line in PREREAD, and just invalidate the cache
lines in POSTREAD, instead of write-back/invalidating in POSTREAD, which
could lead to stale data overriding what has been transfered by DMA.
2006-05-31 15:50:33 +00:00
Olivier Houchard
c712f1ef5b Ooops arm10 is armv5, not armv4.
Submitted by:	kevlo
2006-05-31 13:06:08 +00:00
Olivier Houchard
87adbb81cc Include machine/cpuconf.h in pmap.h in order to get ARM_NMMUS defined,
to appease -Wundef.
2006-05-31 11:57:37 +00:00
Olivier Houchard
1dbb640331 Protect the mapping used for pmap_copy_page/pmap_zero_page with a
mutex.
2006-05-30 23:50:45 +00:00
Olivier Houchard
b64b87c8bd To avoid problems, invalidate the data cache and disable the MMU once
we're done uncompressing the kernel.
2006-05-30 21:13:47 +00:00
Olivier Houchard
51036d9b71 In pmap_is_prefaultable(), assert that the pte isn't NULL if
pmap_get_pde_pte() returns TRUE.

Suggested by:   ssouhlal
2006-05-30 16:55:38 +00:00
Olivier Houchard
29d1651fc5 The Assabet has 32MB of RAM, not 16.
Submitted by:	kevlo
2006-05-30 15:47:55 +00:00
Benno Rice
1108c31908 In pmap_mapdev we correctly round the address off to the nearest page
boundary, but we must also add the offset back on to the va we return.
2006-05-30 14:21:09 +00:00
Olivier Houchard
ec4c4a14f5 Uncomment the call to cpu_idcache_wbinv_all() after the MMU has been
enabled. It has been commented out for a reason I forgot but I suspect
does not apply anymore.
Technically speaking it's not required to do it, has the data and the
instruction cache have been disabled in _start(). However, it may change
in the future, so I don't want to rely on this behavior.

Submitted by:	kevlo
2006-05-30 11:51:58 +00:00
Olivier Houchard
e1f01b09a6 Nuke sa11x0_attach_args. It's a NetBSDIsm, and we have no use for it.
Submitted by:	kevlo
2006-05-29 19:32:32 +00:00
Olivier Houchard
c212f0efe9 Remove any reference to enable_mmu(), it's been gone for a long time.
Submitted by:	kevlo
2006-05-26 01:41:47 +00:00
Olivier Houchard
fb350a0d6a Use pmap_devmap_bootstrap(), instead of mapping the SACOM1 registers
with pmap_map_entry.
More use of macros instead of hardcoding the addr.

Submitted by:	kevlo
2006-05-23 12:14:14 +00:00
Olivier Houchard
9c8c02e7a0 Use macros instead of hardcoding the address for SACOM1. Also don't
pretend we're working with SACOM3, as we're really mapping SACOM1.

Submitted by:   kevlo
2006-05-22 23:25:34 +00:00