Commit Graph

647 Commits

Author SHA1 Message Date
Peter Grehan
726a1868a6 Roll back to previous version, no need for NO_GEOM when GEOM is
standard.
2002-10-06 12:13:12 +00:00
Poul-Henning Kamp
3bd6561289 NB: This commit does *NOT* make GEOM the default in FreeBSD
NB: But it will enable it in all kernels not having options "NO_GEOM"

Put the GEOM related options into the intended order.

Add "options NO_GEOM" to all kernel configs apart from NOTES.

In some order of controlled fashion, the NO_GEOM options will be
removed, architecture by architecture in the coming days.

There are currently three known issues which may force people to
need the NO_GEOM option:

boot0cfg/fdisk:
        Tries to update the MBR while it is being used to control
        slices.  GEOM does not allow this as a direct operation.

SCSI floppy drives:
        Appearantly the scsi-da driver return "EBUSY" if no media
        is inserted.  This is wrong, it should return ENXIO.

PC98:
        It is unclear if GEOM correctly recognizes all variants of
        PC98 disklabels.  (Help Wanted!  I have neither docs nor HW)

These issues are all being worked.

Sponsored by:	DARPA & NAI Labs.
2002-10-05 16:35:33 +00:00
Mike Barcroft
e61d3b10d7 Fix namespace issues by using visibility conditionals from
<sys/cdefs.h>.
2002-10-05 05:47:56 +00:00
Juli Mallett
e6abe47dbf Define _MACHINE. 2002-10-05 02:56:49 +00:00
Mike Barcroft
085f8416a2 style(9) <machine/setjmp.h> headers so they look mostly the same. 2002-10-04 22:10:06 +00:00
Peter Grehan
d13782ef14 Clean up ddb warnings/errors and enable in GENERIC
Approved by: benno
Motivated by: gallatin
2002-10-04 01:19:18 +00:00
Peter Grehan
24a4e806f2 - fix zero-sized stack alloc from previous commit. a default is now
selected ala sparc64
- KSEIII routines implemented (taken from i386/sparc64)

Approved by: Benno
2002-10-04 01:13:34 +00:00
Scott Long
316ec49abd Some kernel threads try to do significant work, and the default KSTACK_PAGES
doesn't give them enough stack to do much before blowing away the pcb.
This adds MI and MD code to allow the allocation of an alternate kstack
who's size can be speficied when calling kthread_create.  Passing the
value 0 prevents the alternate kstack from being created.  Note that the
ia64 MD code is missing for now, and PowerPC was only partially written
due to the pmap.c being incomplete there.
Though this patch does not modify anything to make use of the alternate
kstack, acpi and usb are good candidates.

Reviewed by:	jake, peter, jhb
2002-10-02 07:44:29 +00:00
Peter Wemm
1a8ec9c55a PIC_GOTOFF is OBE. 2002-09-23 07:27:45 +00:00
Mike Barcroft
c0d4804d67 Be careful not to define GCC-specific optimizations in the non-GCC
case.
2002-09-23 04:32:17 +00:00
Benno Rice
be0e6bfc0b It's Apple GMAC, not HMAC.
Approved by:	jake (for sparc64)
2002-09-22 01:18:06 +00:00
John Baldwin
c79408a059 Implement db_print_backtrace() if DDB is compiled into the kernel. This
MD function is just a wrapper around db_stack_trace_cmd() that prints out
a backtrace of curthread.  Currently, this function is only implemented
on i386 and alpha (and the alpha version isn't quite tested yet, will do
that in a bit).  Other changes:

- For i386, fix a bug in the raw frame address case.  The eip we extract
  from the passed in frame address does not match the frame we received.
  Thus, instead of printing a bogus frame with the wrong eip, go ahead
  and advance frame down to the same frame as the eip we are using.
- For alpha, attempt to add a way of doing a raw trace for alpha.  Instead
  of passing a frame address in 'addr', pass in a pointer to a structure
  containing PC and KSP and use those to start the backtrace.  The alpha
  db_print_backtrace() uses asm to read in the current PC and KSP values
  into such a request.

Tested on:	i386
Requested by:	many
2002-09-19 18:46:29 +00:00
Peter Grehan
26eed6e9a2 Updated to somewhat match sparc64/conf/GENERIC
Approved by: benno
2002-09-19 11:20:13 +00:00
Peter Grehan
8860e8c607 Support files and a h/w tree description for the PSIM ppc simulator
Approved by: benno
2002-09-19 04:57:10 +00:00
Peter Grehan
11b370b1bb Driver for the macio south bridge, and ATA cell contained within.
Approved by: benno
2002-09-19 04:52:07 +00:00
Peter Grehan
51478d84b7 softc and register defs for the UniNorth chip
Approved by: benno
2002-09-19 04:50:30 +00:00
Peter Grehan
d48bbef30d - probe the UniNorth chip in addition to the PCI bridges
- enable GEM ethernet cell if present
 - allow sparse address mapping for devices

Approved by: benno
2002-09-19 04:49:58 +00:00
Peter Grehan
d889f46119 Removed osigframe. No need for COMPAT_43 signal bin-compat in PPC.
Approved by: benno
2002-09-19 04:46:36 +00:00
Peter Grehan
c94c0cf8de psim device support
Approved by: benno
2002-09-19 04:45:58 +00:00
Peter Grehan
a379a1422d <machine/types.> -> <sys/types.h>
Approved by: benno
2002-09-19 04:45:32 +00:00
Peter Grehan
50122aa981 Fix clearing of recoverable exception MSR bit when disabling
interrupts

Approved by: benno
2002-09-19 04:45:06 +00:00
Peter Grehan
663a6cc057 Additional machdep sysctl constants needed for userland utils
Approved by: benno
2002-09-19 04:44:35 +00:00
Peter Grehan
6dfada4cca Added sparse address support, required by the macio ATA device
Approved by: benno
2002-09-19 04:44:04 +00:00
Peter Grehan
6e1073f023 Fixed branch labels
Approved by: benno
2002-09-19 04:39:59 +00:00
Peter Grehan
4eae112d86 - bring vm_mapbuf/unmapbuf in line with other archs
- update for recent KSE changes

Approved by: benno
2002-09-19 04:39:28 +00:00
Peter Grehan
07f8023285 - make sure recoverable interrupts are re-enabled in the trap handler
- turn on ast() loop to enable signal delivery

Approved by: benno
2002-09-19 04:39:04 +00:00
Peter Grehan
44b14a299f - worked around 32-bit big-endian syscall return value problem
- syscall register spills weren't copied in correctly
 - removed VM_PROT_READ from the fault type on write protect faults

Approved by: benno
2002-09-19 04:38:35 +00:00
Peter Grehan
f57e8a452b Add sync before isync for G4 cpus
Obtained from: NetBSD
Approved by: benno
2002-09-19 04:37:39 +00:00
Peter Grehan
89eccf4647 - use symbol for user-context offset
- fix szsigcode size declaration

Approved by: benno
2002-09-19 04:36:44 +00:00
Peter Grehan
32bc78460d - use BAT registers to map device space and physical memory
- remove test in pmap_activate that prevented vmspace sharing (v/rfork)
 - always sync icache in pmap_enter until problems are sorted
 - fix incorrect use of regions in pmap_kenter
 - bring in pmap_release from NetBSD
 - fix overwrite of bootstrap flag in pmap_pvo_enter

Approved by: benno
2002-09-19 04:36:20 +00:00
Peter Grehan
6f1808faf4 - psim device support
- comment out re-enabling of interrupts until problems are sorted

Approved by: benno
2002-09-19 04:32:25 +00:00
Peter Grehan
1ce0c6b147 Clear on-demand BAT entries to properly restore OpenFirmware's
address space

Approved by: benno
2002-09-19 04:31:39 +00:00
Peter Grehan
d6ce71e50a psim device support
Approved by: benno
2002-09-19 04:31:04 +00:00
Peter Grehan
81a6d01d1c - implemented sendsig/sigreturn
- sysctl for cacheline size, required by libc/rtld
 - init'd more exception vectors
 - fixed problem with register overwrite in exec_setregs
 - removed redundant NetBSD code

Approved by: benno
2002-09-19 04:30:43 +00:00
Peter Grehan
3f3331903d - moved intrcnt/intrnames to locore.s to fix sysctl -a panic
Approved by: benno
2002-09-19 04:29:59 +00:00
Peter Grehan
ae3ad2c6c0 - rationalised includes
- added sigframe offset

Approved by: benno
2002-09-19 04:29:07 +00:00
Peter Grehan
d3dce63c13 - removed unnecessary includes
- converted inline asm to C for int enable
 - shifted clearing of 'cold' to end of routine

Approved by: benno
2002-09-19 04:28:45 +00:00
Mike Barcroft
86954511d2 Implement C99's va_copy() macro. 2002-09-18 07:33:16 +00:00
Peter Wemm
66422f5b7a Initiate deorbit burn for the i386-only a.out related support. Moves are
under way to move the remnants of the a.out toolchain to ports.  As the
comment in src/Makefile said, this stuff is deprecated and one should not
expect this to remain beyond 4.0-REL.  It has already lasted WAY beyond
that.

Notable exceptions:
gcc - I have not touched the a.out generation stuff there.
ldd/ldconfig - still have some code to interface with a.out rtld.
old as/ld/etc - I have not removed these yet, pending their move to ports.
some includes - necessary for ldd/ldconfig for now.

Tested on: i386 (extensively), alpha
2002-09-17 01:49:00 +00:00
Julian Elischer
4f0db5e08c Allocate KSEs and KSEGRPs separatly and remove them from the proc structure.
next step is to allow > 1 to be allocated per process. This would give
multi-processor threads. (when the rest of the infrastructure is
in place)

While doing this I noticed libkvm and sys/kern/kern_proc.c:fill_kinfo_proc
are diverging more than they should.. corrective action needed soon.
2002-09-15 23:52:25 +00:00
Jun Kuriyama
b37a9be231 Use "options " rather than "options<tab>". 2002-09-09 02:40:59 +00:00
Peter Wemm
1a50106e30 Zap the implementations of the i386-aout specific cpu_coredump function.
Most of the non-i386 platforms had rather broken implementations anyway.
2002-09-07 01:26:34 +00:00
Mike Barcroft
dd1b6791a8 Now that _BSD_CLK_TCK_ and _BSD_CLOCKS_PER_SEC_ are the same on all
architectures, move the definition directly into <time.h> and finish
the removal of <machine/ansi.h>.
2002-09-03 00:06:58 +00:00
Jake Burkholder
f36ba45234 Added fields for VM_MIN_ADDRESS, PS_STRINGS and stack protections to
sysentvec.  Initialized all fields of all sysentvecs, which will allow
them to be used instead of constants in more places.  Provided stack
fixup routines for emulations that previously used the default.
2002-09-01 21:41:24 +00:00
Peter Wemm
31cdffc6d8 Take a shot at fixing up a whole stack of style and other embarresing
unforced errors that Bruce identified.  I have not yet addressed all of
his concerns.
2002-08-31 03:33:32 +00:00
Peter Wemm
447b3772dc Change hw.physmem and hw.usermem to unsigned long like they used to be
in the original hardwired sysctl implementation.

The buf size calculator still overflows an integer on machines with large
KVA (eg: ia64) where the number of pages does not fit into an int.  Use
'long' there.

Change Maxmem and physmem and related variables to 'long', mostly for
completeness.  Machines are not likely to overflow 'int' pages in the
near term, but then again, 640K ought to be enough for anybody.  This
comes for free on 32 bit machines, so why not?
2002-08-30 04:04:37 +00:00
Jake Burkholder
bafbd49201 Renamed poorly named setregs to exec_setregs. Moved its prototype to
imgact.h with the other exec support functions.
2002-08-29 06:17:48 +00:00
Mike Barcroft
646d21a5a3 Since arm and powerpc aren't far enough to set stathz, take a
preemptive strike and change _BSD_CLK_TCK_ and _BSD_CLOCKS_PER_SEC_
to 128.

Approved by:	benno
2002-08-26 03:44:11 +00:00
Alan Cox
6508a194aa o Retire pmap_pageable(). It's an advisory routine that none
of our platforms implements.
2002-08-25 04:20:05 +00:00
Mike Barcroft
bd8e0716d9 Move several MI types from <machine/_types.h> to <sys/_types.h>.
These types are unlikely to ever become very MD.  They include:
clockid_t, ct_rune_t, fflags_t, intrmask_t, mbstate_t, off_t, pid_t,
rune_t, socklen_t, timer_t, wchar_t, and wint_t.

While moving them, make a few adjustments (submitted by bde):
o __ct_rune_t needs to be precisely `int', not necessarily __int32_t,
  since the arg type of the ctype functions is int.
o __rune_t, __wchar_t and __wint_t inherit this via a typedef of
  __ct_rune_t.
o Some minor wording changes in the comment blocks for ct_rune_t and
  mbstate_t.

Submitted by:	bde (partially)
2002-08-23 16:49:06 +00:00
Mike Barcroft
abbd890233 o Merge <machine/ansi.h> and <machine/types.h> into a new header
called <machine/_types.h>.
o <machine/ansi.h> will continue to live so it can define MD clock
  macros, which are only MD because of gratuitous differences between
  architectures.
o Change all headers to make use of this.  This mainly involves
  changing:
    #ifdef _BSD_FOO_T_
    typedef	_BSD_FOO_T_	foo_t;
    #undef _BSD_FOO_T_
    #endif
  to:
    #ifndef _FOO_T_DECLARED
    typedef	__foo_t	foo_t;
    #define	_FOO_T_DECLARED
    #endif

Concept by:	bde
Reviewed by:	jake, obrien
2002-08-21 16:20:02 +00:00
Robert Watson
9ca435893b In order to better support flexible and extensible access control,
make a series of modifications to the credential arguments relating
to file read and write operations to cliarfy which credential is
used for what:

- Change fo_read() and fo_write() to accept "active_cred" instead of
  "cred", and change the semantics of consumers of fo_read() and
  fo_write() to pass the active credential of the thread requesting
  an operation rather than the cached file cred.  The cached file
  cred is still available in fo_read() and fo_write() consumers
  via fp->f_cred.  These changes largely in sys_generic.c.

For each implementation of fo_read() and fo_write(), update cred
usage to reflect this change and maintain current semantics:

- badfo_readwrite() unchanged
- kqueue_read/write() unchanged
  pipe_read/write() now authorize MAC using active_cred rather
  than td->td_ucred
- soo_read/write() unchanged
- vn_read/write() now authorize MAC using active_cred but
  VOP_READ/WRITE() with fp->f_cred

Modify vn_rdwr() to accept two credential arguments instead of a
single credential: active_cred and file_cred.  Use active_cred
for MAC authorization, and select a credential for use in
VOP_READ/WRITE() based on whether file_cred is NULL or not.  If
file_cred is provided, authorize the VOP using that cred,
otherwise the active credential, matching current semantics.

Modify current vn_rdwr() consumers to pass a file_cred if used
in the context of a struct file, and to always pass active_cred.
When vn_rdwr() is used without a file_cred, pass NOCRED.

These changes should maintain current semantics for read/write,
but avoid a redundant passing of fp->f_cred, as well as making
it more clear what the origin of each credential is in file
descriptor read/write operations.

Follow-up commits will make similar changes to other file descriptor
operations, and modify the MAC framework to pass both credentials
to MAC policy modules so they can implement either semantic for
revocation.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-15 20:55:08 +00:00
Alan Cox
dde5f1949f o Introduce pmap_page_is_mapped(). Its purpose is to obsolete
the PG_MAPPED flag.
2002-08-07 19:37:22 +00:00
Alan Cox
7ffcf9ec77 o Don't set PG_MAPPED or PG_WRITEABLE when a page is mapped
using pmap_kenter() or pmap_qenter().
 o Use VM_ALLOC_WIRED in pmap_new_thread().
2002-08-05 00:04:18 +00:00
Marc Fonvieille
c0727dcbfe Fix the link to the Handbook 2002-08-01 17:21:18 +00:00
Mike Barcroft
49545b3891 Create a new header <machine/_stdint.h> for storing MD parts of
<stdint.h>.  Previously, parts were defined in <machine/ansi.h> and
<machine/limits.h>.  This resulted in two problems:
  (1) Defining macros in <machine/ansi.h> gets in the way of that
      header only defining types.
  (2) Defining C99 limits in <machine/limits.h> adds pollution to
      <limits.h>.
2002-07-29 17:41:23 +00:00
Peter Wemm
b618108fff de-count pci 2002-07-23 06:38:47 +00:00
Peter Wemm
d50f790fa4 No more NO_WERROR for the kernel. It's still possible though, but
seperate from NO_WERROR which is easily mixed up with in userland.
2002-07-22 00:21:17 +00:00
Peter Wemm
fc147d7fe9 Add explicit unit count on 'device pci' for ahc/ahd 2002-07-21 23:07:31 +00:00
Peter Wemm
3ebc124838 Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable
handler in the kernel at the same time.  Also, allow for the
exec_new_vmspace() code to build a different sized vmspace depending on
the executable environment.  This is a big help for execing i386 binaries
on ia64.   The ELF exec code grows the ability to map partial pages when
there is a page size difference, eg: emulating 4K pages on 8K or 16K
hardware pages.

Flesh out the i386 emulation support for ia64.  At this point, the only
binary that I know of that fails is cvsup, because the cvsup runtime
tries to execute code in pages not marked executable.

Obtained from:  dfr (mostly, many tweaks from me).
2002-07-20 02:56:12 +00:00
Benno Rice
aa39961e37 Remove the statically allocated array that holds OpenFirmware memory mappings
during pmap_bootstrap.  Instead, temporarily help ourselves to some memory
from phys_avail since we won't need it post-boostrap.
2002-07-18 12:43:08 +00:00
John Baldwin
dde0429505 Various comment and minor style fixes. No actual content changes.
Inspired by:	bde
2002-07-16 18:20:17 +00:00
Jonathan Mini
08b38412c8 Add additional cred_free_thread() calls that I had missed the first time.
Pointed out by:	jhb
2002-07-13 04:36:50 +00:00
John Baldwin
33d7ad1abe Set the thread state of the newly chosen to run thread to TDS_RUNNING in
choosethread() in MI C code instead of doing it in in assembly in all the
various cpu_switch() functions.  This fixes problems on ia64 and sparc64.

Reviewed by:	julian, peter, benno
Tested on:	i386, alpha, sparc64
2002-07-12 18:34:22 +00:00
Mike Barcroft
f889202ba4 Remove label_t and physadr, which seem to have never been used in
FreeBSD.

Submitted by:	bde
2002-07-10 15:47:59 +00:00
Benno Rice
99bc8c72f7 Add setjmp (needed for DDB). 2002-07-10 12:26:17 +00:00
Benno Rice
45b4eca56d Add DDB support. 2002-07-10 12:21:54 +00:00
Benno Rice
c3e9df1087 - Make sure we don't trample our metadata pointer in our initial bootstrap.
- Load metadata parameters.
2002-07-10 12:16:48 +00:00
Benno Rice
db015117ba Metadata definitions. 2002-07-10 12:14:23 +00:00
Benno Rice
d030984167 Remove some diagnostic code that snuck in. 2002-07-10 09:48:43 +00:00
Benno Rice
ec3772f3fd Remove some dead code. 2002-07-10 09:46:49 +00:00
Benno Rice
3af09242a8 Remove some unused includes. 2002-07-10 09:46:24 +00:00
Benno Rice
c5f0b00c65 Bring this in line with what I'm using. 2002-07-09 13:46:27 +00:00
Benno Rice
3495845eec Add an implementation for pmap_zero_page_area. 2002-07-09 13:44:24 +00:00
Benno Rice
b98807d45e Add the OF_getetheraddr function required by if_gem. 2002-07-09 13:43:06 +00:00
Benno Rice
87054a7182 Tidy up trap vector and external interrupt setup. 2002-07-09 13:40:37 +00:00
Benno Rice
98f8e6c099 Driver for the Apple UniNorth Host-PCI bridge.
This is in a PowerMac-specific subdirectory as it is hoped that we will support
more than just the PowerMac platform.
2002-07-09 13:34:09 +00:00
Benno Rice
2686f05627 OpenFirmware PCI support code.
This and the sparc64 equivalent should probably be merged at some point.
2002-07-09 13:27:58 +00:00
Benno Rice
7ade8bb67c Changes for KSE3.
Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-07-09 12:57:23 +00:00
Benno Rice
f5db3c1695 Add this file, which I forgot in a previous commit.
This relates to the trap/interrupt cleanup.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-07-09 12:50:58 +00:00
Benno Rice
25b60a3b49 1) Add busdma machdep code.
2) Add bus_pio.h and bus_memio.h (which do nothing).

Submitted by:	Peter Grehan <peterg@ptree32.com.au> (1)
2002-07-09 12:47:14 +00:00
Benno Rice
ca01920852 Driver for OpenPIC compatible interrupt controllers.
It's fairly PowerMac specific at the moment, but that should be fixable.
2002-07-09 11:26:10 +00:00
Benno Rice
7abc408094 - Add the "compatible" property to the list that we keep in ivars.
- Add interrupt alloc/setup/teardown/dealloc support, via whichever PIC
  OpenFirmware gives us.
2002-07-09 11:13:33 +00:00
Benno Rice
f6a7723dff Add interrupt handling support code.
I've tried to make this fairly platform-independant as some PowerPC platforms
may not have openpic-style interrupt controllers.  This may not have the best
performance but it works for now.
2002-07-09 11:12:20 +00:00
Mike Barcroft
ba5fe51088 Move __offsetof() macro from <machine/ansi.h> to <sys/cdefs.h>. It's
hardly MD, since all our platforms share the same macro.  It's not
really compiler dependent either, but this helps in reducing
<machine/ansi.h> to only type definitions.
2002-07-08 16:43:35 +00:00
Peter Wemm
a58b3a6878 Add a special page zero entry point intended to be called via the single
threaded VM pagezero kthread outside of Giant.  For some platforms, this
is really easy since it can just use the direct mapped region.  For others,
IPI sending is involved or there are other issues, so grab Giant when
needed.

We still have preemption issues to deal with, but Alan Cox has an
interesting suggestion on how to minimize the problem on x86.

Use Luigi's hack for preserving the (lack of) priority.

Turn the idle zeroing back on since it can now actually do something useful
outside of Giant in many cases.
2002-07-08 04:24:26 +00:00
Peter Wemm
a136efe9b6 Collect all the (now equivalent) pmap_new_proc/pmap_dispose_proc/
pmap_swapin_proc/pmap_swapout_proc functions from the MD pmap code
and use a single equivalent MI version.  There are other cleanups
needed still.

While here, use the UMA zone hooks to keep a cache of preinitialized
proc structures handy, just like the thread system does.  This eliminates
one dependency on 'struct proc' being persistent even after being freed.
There are some comments about things that can be factored out into
ctor/dtor functions if it is worth it.  For now they are mostly just
doing statistics to get a feel of how it is working.
2002-07-07 23:05:27 +00:00
Peter Wemm
1f0b8b7582 Update for post-kse3 pmap kthread allocation changes 2002-07-07 22:56:31 +00:00
Mike Barcroft
a19d429398 Since printf(3) now supports the `j' conversion specifier, use that
when printing intmax_t and uintmax_t.

Forgotten by:	mike
Noticed by:	bde
2002-06-30 05:48:03 +00:00
Benno Rice
71cf3a3574 Add an inline to call eieio.
("Enforce In-order Execution of I/O".  I am not making this up.)
2002-06-29 10:00:07 +00:00
Benno Rice
bfcf2ca287 We don't need to clear RI in the MSR when entering a critical section. 2002-06-29 09:55:57 +00:00
Benno Rice
14d617bf1f in_cksum et al.
Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:49:26 +00:00
Benno Rice
a088981493 Implement vtophys() 2002-06-29 09:47:06 +00:00
Benno Rice
8bbfa33a79 Add pmap_mapdev and pmap_unmapdev. 2002-06-29 09:45:59 +00:00
Benno Rice
0d29067503 - Initialise battable to cover I/O spaces.
- Statically size the bpvo entries to avoid conflicts between bpvo allocation
  and the vm allocator.
- Shift pmap_init2 code into pmap_init.
- Add UMA_ZONE_VM flag to uma_zcreate.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:43:59 +00:00
Benno Rice
8b8aa9c1e6 To quote Peter:
The case in cpu_switch() where there isn't a higher priority thread
(choosethread() == curthread) uses r4 as the PCB context pointer. However, the
use of r4 after the label L2 is incorrect, since it was probably trashed by
the call to choosethread, and in any case was set up to curthread at the start
of the routine.

This condition will occur when an interrupt thread schedules a netisr, which
is a lower priority thread.

Another (probably unnecessary) difference is that I was paranoid about
register trashing, so I decided to save r2 and r13 as well.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:39:44 +00:00
Benno Rice
a5f44e04e2 mempcy/bcopy handles overlapping copies so make ovbcopy call it. 2002-06-29 09:34:54 +00:00
Benno Rice
cd0386a052 Add BOOTP_NFSROOT support code. 2002-06-29 09:33:18 +00:00
Benno Rice
637dd1a0b3 - Use tmpstk exclusively in the init path.
- Remove redundant code.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:31:27 +00:00
Benno Rice
6c2a062580 Many fixes to low-level trap and interrupt handling:
- Tidy up clock code.  Don't repeatedly call hardclock().
- Remove intrnames, decrnest and intrcnt from locore.s
- Coalesce all trap handling into a single stub that then calls a dispatch
  function.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:28:21 +00:00
Benno Rice
3f57c11ec5 Convert this from mostly inline assembler to mostly C.
Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:16:30 +00:00
Jake Burkholder
8ba3d077ff Add an MD callout like cpu_exit, but which is called after sched_lock is
obtained, when all other scheduling activity is suspended.  This is needed
on sparc64 to deactivate the vmspace of the exiting process on all cpus.
Otherwise if another unrelated process gets the exact same vmspace structure
allocated to it (same address), its address space will not be activated
properly.  This seems to fix some spontaneous signal 11 problems with smp
on sparc64.
2002-06-24 15:48:02 +00:00
Jonathan Mini
01ad8a53db Remove unused diagnostic function cread_free_thread().
Approved by:	alfred
2002-06-24 06:22:00 +00:00
Ian Dowse
2f384b348a Make vm_pindex_t 64-bit on all platforms. This is necessary to avoid
overflows with the large file sizes that UFS2 permits.

Reviewed by:	dillon, alc, tegge
2002-06-23 21:57:19 +00:00
Peter Wemm
b23619e02a Deorbit suibyte(). It was only used for split address space systems
for supporting UIO_USERISPACE (ie: it wasn't used).
2002-06-20 07:13:35 +00:00
Peter Wemm
2f9267ec23 Move the "- 1" into the RQB_FFS(mask) macro itself so that
implementations can provide a base zero ffs function if they wish.
This changes
  #define RQB_FFS(mask) (ffs64(mask))
  foo = RQB_FFS(mask) - 1;
to
  #define RQB_FFS(mask) (ffs64(mask) - 1)
  foo = RQB_FFS(mask);
On some platforms we can get the "- 1" for free, eg: those that use the
C code for ffs64().

Reviewed by:	jake (in principle)
2002-06-20 06:21:20 +00:00
John Baldwin
99cca534f3 - Fixup / remove obsolete comments.
- ktrace no longer requires Giant so do ktrace syscall events before and
  after acquiring and releasing Giant, respectively.
- For i386, ia32 syscalls on ia64, powerpc, and sparc64, get rid of the
  goto bad hack and instead use the model on ia64 and alpha were we
  skip the actual syscall invocation if error != 0.  This fixes a bug
  where if we the copyin() of the arguments failed for a syscall that
  was not marked MP safe, we would try to release Giant when we had
  not acquired it.
2002-06-07 05:47:35 +00:00
Doug Rabson
99bd783419 Move the definition of ElfN_Hashelt to common headers. The only platform
which has a different definition for this is alpha.
2002-05-30 08:32:18 +00:00
Benno Rice
c05529221e The stack is not at the top of the user struct. 2002-05-28 12:31:34 +00:00
Benno Rice
3cdee89f99 Remove an assertion as to whether the current thread already had the FPU or
not.  It may be desirable to put something similar back, but it's getting in
the way in it's current form.
2002-05-28 12:28:22 +00:00
Benno Rice
60ead00ef8 - Move macros that represent where syscall args are kept in a trapframe from
trap.c to frame.h
- Use the macros in vm_machdep.c:cpu_fork() to set up the trap frame of the
  new thread.
2002-05-28 12:24:29 +00:00
Benno Rice
8e36f0ec3f Remove the old prototype for kcopy. It's in cpu.h now. 2002-05-28 09:38:02 +00:00
Benno Rice
25e2288dd7 Implement pmap_copy and pmap_copy_page. 2002-05-28 07:38:55 +00:00
Benno Rice
37d87c9ff8 Move the kcopy() function from trap.c to machdep.c. Add a prototype. 2002-05-28 07:36:36 +00:00
Benno Rice
31956eeb9e Print srr1 in printtrap()
Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-05-27 11:20:19 +00:00
Benno Rice
31c82d0332 Get the correct memory regions from OpenFirmware. We were getting the
"available" ranges, not the "physical" ranges.  Clean up some of the
bootstrap code in the process.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-05-27 11:18:12 +00:00
Benno Rice
7ed61facaa Use correct types in [sf]uword32. 2002-05-27 10:50:47 +00:00
Doug Rabson
396a429cfd Add declarations of suword32 and suword64. Add implementations of one or
the other (or both) to all the platforms. Similar for fuword32 and
fuword64.
2002-05-26 16:03:13 +00:00
Jake Burkholder
d2ac231616 Make the run queue parameters machine dependent. Optimize 64 bit
architectures by using a 64 bit word for the bit array which keeps
track of non-empty queues.

Reviewed by:	peter
2002-05-25 01:12:23 +00:00
Benno Rice
84b3ce6811 Make this more FreeBSD-ish.
Requested by:	jhb
2002-05-19 08:16:25 +00:00
Benno Rice
76a118f236 - Do a quick style pass.
- Correct the implementation of fix_unaligned to use a thread, not a proc.
- GC some #if 0'd stuff.
2002-05-19 04:04:12 +00:00
Benno Rice
4ca98df6b2 Add the PSL_VEC flag for AltiVec (no, it's not here yet =)) 2002-05-19 04:03:11 +00:00
Benno Rice
96269f7e26 - Rename the _C_LABEL macro to CNAME.
- Rename the _ASM_LABEL macro to ASMNAME.
- Add the HIDENAME macro which is used in libc's syscall stuff.
2002-05-17 01:44:55 +00:00
Benno Rice
b635dacd57 Fix commenting around NetBSD version string. 2002-05-17 01:41:01 +00:00
David E. O'Brien
ae8f9dd13f An exact copy of i386/include/float.h will work here. 2002-05-15 20:54:35 +00:00
Poul-Henning Kamp
6380601f64 Move MI stuff out of MD param.h files.
It can all still be overridden in the MD files should need suddenly arise.
2002-05-14 20:35:29 +00:00
Poul-Henning Kamp
4c51ae2155 Remove the unused definitions of ctod() and dotc(). 2002-05-14 20:01:34 +00:00
Benno Rice
eeaa897915 FPU support.
Obtained from:	NetBSD (portions)
2002-05-13 07:44:48 +00:00
Benno Rice
608cd3ca29 More locking fixes. 2002-05-12 13:43:21 +00:00
Benno Rice
a397544c6b Do the correct locking on processes for DSI and ISI traps.
Copied from:	sparc64
2002-05-12 06:06:24 +00:00
Benno Rice
0f92104c14 Implement the following functions:
- pmap_addr_hint
- pmap_change_wiring
- pmap_extract
- pmap_is_modified
2002-05-10 14:21:48 +00:00
Benno Rice
e89482f7cb Install the system call trap handler. 2002-05-10 14:19:44 +00:00
Benno Rice
fafc736254 Improve our detection of an attempted duplicate entry. We may be trying to
change the page protection bits.
2002-05-10 06:27:08 +00:00
Benno Rice
f2b85e7c82 Remove a debugging printf that escaped. 2002-05-10 06:26:19 +00:00
Benno Rice
a51eb7c321 Increase the size of the kstack. 2002-05-10 05:16:40 +00:00
David E. O'Brien
c7e401fbc3 Gcc 3.1 varargs support. 2002-05-10 02:12:04 +00:00
Benno Rice
3779a55671 Update to newer trap code from NetBSD.
Obtained from:	NetBSD
2002-05-09 14:22:55 +00:00
Benno Rice
afb7382655 Add an assertion that we have a current pmap set before we try and return. 2002-05-09 14:15:51 +00:00
Benno Rice
1d61c15b8a The per-cpu curpmap is now set by pmap_activate. We don't need to do it here
anymore.
2002-05-09 14:13:29 +00:00
Benno Rice
8c2b091ea2 - Add a prototype for the setfault() function.
- Remove some stray printf()s.
2002-05-09 14:11:17 +00:00
Benno Rice
8207b3627b 1. Better track the executable status of mappings.
2.  Set a pcpu variable to the real address of the active pmap (used when
    exiting from traps.

Obtained from:	NetBSD (1)
2002-05-09 14:09:19 +00:00
Benno Rice
3bc5121f01 Rename the constants for the contents of the PVR register so as not to
conflict with cpu names used in config files..
2002-05-09 14:04:43 +00:00
Poul-Henning Kamp
2266fe776e Don't export timecounter structures under debug. with sysctl, they
contain no truly interesting data anymore.
2002-04-30 19:34:31 +00:00
Benno Rice
b57e802a85 Commit of stuff that's been sitting in my tree for a while.
Highlights include:
- New low-level trap code from NetBSD.  The high level code still needs a lot
  of work.
- Fixes for some pmap handling in thread switching.
- The kernel will now get to attempting to jump into init in user mode.  There
  are some pmap/trap issues which prevent it from actually getting there though.

Obtained from:	NetBSD (parts)
2002-04-29 12:14:31 +00:00
Benno Rice
d809b79220 - Add back calls to setfault that were removed when these functions were moved. 2002-04-29 09:28:56 +00:00
Peter Wemm
db17c6fc07 Tidy up some loose ends.
i386/ia64/alpha - catch up to sparc64/ppc:
- replace pmap_kernel() with refs to kernel_pmap
- change kernel_pmap pointer to (&kernel_pmap_store)
  (this is a speedup since ld can set these at compile/link time)
all platforms (as suggested by jake):
- gc unused pmap_reference
- gc unused pmap_destroy
- gc unused struct pmap.pm_count
(we never used pm_count - we track address space sharing at the vmspace)
2002-04-29 07:43:16 +00:00
Alan Cox
72ba293d78 MFi386 1.222: Remove vm_map_growstack() and acquisition and release of Giant
around vm_fault() in trap_pfault().
2002-04-27 17:00:28 +00:00
Marcel Moolenaar
d297ad160e Don't use the symbol name to lookup the symbol value when we can use
the symbol index defined by the relocation. The elf_lookup() support
function is to be used by elf_reloc() when symbol lookups need to be
done. The elf_lookup() function operates on the symbol index and
will do a symbol name based lookup when such is required, otherwise
it uses the symbol index directly. This solves the problem seen on
ia64 where the symbol hash table does not contain local symbols and
a symbol name based lookup would fail for those symbols.

Don't pass the symbol name to elf_reloc(), as it isn't used any more.
2002-04-25 01:22:16 +00:00
Benno Rice
f6310641b9 Replace inline asm with it's inline function wrapper. 2002-04-20 10:06:22 +00:00
Benno Rice
864bc5205b Correct a comment. 2002-04-16 12:15:17 +00:00
Benno Rice
e79f59e84c Implement the following functions:
- pmap_kextract
	- pmap_object_init_pt
	- pmap_protect
	- pmap_remove_pages

I'm pretty sure pmap_remove_pages is at least somewhat bogus.
2002-04-16 12:13:10 +00:00
Benno Rice
27dbf9d5e8 Remove some dead code. 2002-04-16 12:10:04 +00:00
Benno Rice
d080d5fd7c Use mtsrin() instead of inline asm. 2002-04-16 12:07:41 +00:00
Benno Rice
a8aaf02c3c Change the value of PMAP_BOOTSTRAP so we don't stomp on the PTE index value. 2002-04-16 12:00:43 +00:00
Benno Rice
b2df36e7d2 Add inlines for mtsrin and mfsrin. 2002-04-16 11:45:09 +00:00
Peter Wemm
1a87a0da66 Pass vm_page_t instead of physical addresses to pmap_zero_page[_area]()
and pmap_copy_page().  This gets rid of a couple more physical addresses
in upper layers, with the eventual aim of supporting PAE and dealing with
the physical addressing mostly within pmap.  (We will need either 64 bit
physical addresses or page indexes, possibly both depending on the
circumstances.  Leaving this to pmap itself gives more flexibilitly.)

Reviewed by:	jake
Tested on:	i386, ia64 and (I believe) sparc64. (my alpha was hosed)
2002-04-15 16:00:03 +00:00
Benno Rice
2819d0ade2 Add ofwd to the GENERIC config for powerpc. 2002-04-15 12:30:18 +00:00
Benno Rice
3e0ec88767 Add a nexus device.
Copied from:	sparc64
2002-04-15 12:29:18 +00:00
Benno Rice
52a3cde55d Turn some CTR's into CTR0's. 2002-04-15 12:11:18 +00:00
Benno Rice
da57e52add GC an extraneous prototype of delay(). 2002-04-15 12:02:43 +00:00
Mike Barcroft
795aff0ed9 Include <sys/cdefs.h> for definition of __BSD_VISIBLE.
Pointy hat to:	mike
2002-04-12 15:56:45 +00:00
Mike Barcroft
49285705cc Remove the hack for segsz_t from <sys/types.h>; use the normal
_BSD_FOO_T_ method for defining segsz_t.
2002-04-10 15:58:13 +00:00
Mike Barcroft
7f0f1cfd57 Add manifest constants: _LITTLE_ENDIAN, _BIG_ENDIAN, _PDP_ENDIAN, and
_BYTE_ORDER.  These are far more useful than their non-underscored
equivalents as these can be used in restricted namespace environments.
Mark the non-underscored variants as deprecated.
2002-04-10 14:39:14 +00:00
Poul-Henning Kamp
2ce7d7a033 GC various bits and pieces of USERCONFIG from all over the place. 2002-04-09 11:18:46 +00:00
Poul-Henning Kamp
67ec58a802 GC the "dumplo" variable, which is no longer used.
A lot of sys/*/*/machdep.c seems not to be.
2002-04-07 21:01:37 +00:00
John Baldwin
c53c013bae - Move the MI mutexes sched_lock and Giant from being declared in the
various machdep.c's to being declared in kern_mutex.c.
- Add a new function mutex_init() used to perform early initialization
  needed for mutexes such as setting up thread0's contested lock list
  and initializing MI mutexes.  Change the various MD startup routines
  to call this function instead of duplicating all the code themselves.

Tested on:	alpha, i386
2002-04-02 22:19:16 +00:00
Matthew Dillon
182da8209d Stage-2 commit of the critical*() code. This re-inlines cpu_critical_enter()
and cpu_critical_exit() and moves associated critical prototypes into their
own header file, <arch>/<arch>/critical.h, which is only included by the
three MI source files that need it.

Backout and re-apply improperly comitted syntactical cleanups made to files
that were still under active development.  Backout improperly comitted program
structure changes that moved localized declarations to the top of two
procedures.  Partially re-apply one of the program structure changes to
move 'mask' into an intermediate block rather then in three separate
sub-blocks to make the code more readable.  Re-integrate bug fixes that Jake
made to the sparc64 code.

Note: In general, developers should not gratuitously move declarations out
of sub-blocks.  They are where they are for reasons of structure, grouping,
readability, compiler-localizability, and to avoid developer-introduced bugs
similar to several found in recent years in the VFS and VM code.

Reviewed by:	jake
2002-04-01 23:51:23 +00:00
Poul-Henning Kamp
8d19a26558 Centralize the "bootdev" and "dumpdev" variables. They are still pretty
bogus all things considered, but at least now they don't camouflage as
being MD variables.
2002-03-31 07:15:28 +00:00
Alan Cox
6ef4be047a Use the MI vm_map_growstack() instead of the MD grow_stack() in trap(). Remove
the MD grow_stack().
2002-03-30 20:44:31 +00:00
Jeff Roberson
f22a4b62f5 Add a new mtx_init option "MTX_DUPOK" which allows duplicate acquires of locks
with this flag.  Remove the dup_list and dup_ok code from subr_witness.  Now
we just check for the flag instead of doing string compares.

Also, switch the process lock, process group lock, and uma per cpu locks over
to this interface.  The original mechanism did not work well for uma because
per cpu lock names are unique to each zone.

Approved by:	jhb
2002-03-27 09:23:41 +00:00
Matthew Dillon
d74ac6819b Compromise for critical*()/cpu_critical*() recommit. Cleanup the interrupt
disablement assumptions in kern_fork.c by adding another API call,
cpu_critical_fork_exit().  Cleanup the td_savecrit field by moving it
from MI to MD.  Temporarily move cpu_critical*() from <arch>/include/cpufunc.h
to <arch>/<arch>/critical.c (stage-2 will clean this up).

Implement interrupt deferral for i386 that allows interrupts to remain
enabled inside critical sections.  This also fixes an IPI interlock bug,
and requires uses of icu_lock to be enclosed in a true interrupt disablement.

This is the stage-1 commit.  Stage-2 will occur after stage-1 has stabilized,
and will move cpu_critical*() into its own header file(s) + other things.
This commit may break non-i386 architectures in trivial ways.  This should
be temporary.

Reviewed by:	core
Approved by:	core
2002-03-27 05:39:23 +00:00
David E. O'Brien
c543d983fa Guard against redefining __gnuc_va_list. 2002-03-24 11:25:46 +00:00
David E. O'Brien
439a4003ab ASM versions of __FBSDID. 2002-03-23 02:01:27 +00:00
Benno Rice
bf76ba7826 Collect all functions for copying to and from userspace into the one file.
This allows me to reimplement [sf]u{byte,word} as separate functions and not
as calls to copy{in,out}.
2002-03-21 23:45:59 +00:00
Benno Rice
6da4e60a23 - Make all inlines for manipulating supervisor-level registers accept/return
register_t values.
- Implement an inline for isync.
2002-03-21 13:07:31 +00:00
Benno Rice
54551c77ee GC some unused, bogus interrupt functions and replace them with proper
implementations of intr_disable and intr_restore.
2002-03-21 12:04:58 +00:00
Jeff Roberson
378862a72d Remove references to vm_zone.h and switch over to the new uma API. 2002-03-21 01:11:31 +00:00
Alfred Perlstein
812344bc0b Remove __P.
Reveiwed by: benno
2002-03-20 23:17:50 +00:00
John Baldwin
f25fcd64b8 Change the way we ensure td_ucred is NULL if DIAGNOSTIC is defined.
Instead of caching the ucred reference, just go ahead and eat the
decerement and increment of the refcount.  Now that Giant is pushed down
into crfree(), we no longer have to get Giant in the common case.  In the
case when we are actually free'ing the ucred, we would normally free it on
the next kernel entry, so the cost there is not new, just in a different
place.  This also removse td_cache_ucred from struct thread.  This is
still only done #ifdef DIAGNOSTIC.

Tested on:	i386, alpha
2002-03-20 21:09:09 +00:00
Benno Rice
21d7ec8915 Increment pmap_pvo_count in the right place. 2002-03-20 05:25:33 +00:00
Jeff Roberson
8355f576a9 This is the first part of the new kernel memory allocator. This replaces
malloc(9) and vm_zone with a slab like allocator.

Reviewed by:	arch@
2002-03-19 09:11:49 +00:00
Benno Rice
49f8f7273b Changes and fixes in preparation for UMA:
- Bootstrap pvo entries are now allocated by stealing pages.
- Just return if we're pmap_enter'ing a mapping that's already there.  Don't
  remove it and re-enter it.
2002-03-17 23:58:12 +00:00
Benno Rice
508473baea Lowercase all of the trap names. 2002-03-17 23:55:11 +00:00
Benno Rice
9737e23c11 Clean up and fix up copyin and copyout. 2002-03-17 23:54:55 +00:00
Dag-Erling Smørgrav
a2e0658045 Move the definition of PT_[GS]ET{,DB,FP}REGS from the MD ptrace.h to the
MI ptrace.h, since all platforms define them.  Keep the MD ptrace.h around
for FIX_SSTEP (which is currently only needed on Alpha).
2002-03-16 00:25:53 +00:00
Benno Rice
8862232d7b Correct a typo. (* that should've been &) 2002-03-11 07:09:42 +00:00
Mike Barcroft
d846855da8 o Don't require long long support in bswap64() functions.
o In i386's <machine/endian.h>, macros have some advantages over
  inlines, so change some inlines to macros.
o In i386's <machine/endian.h>, ungarbage collect word_swap_int()
  (previously __uint16_swap_uint32), it has some uses on i386's with
  PDP endianness.

Submitted by:	bde

o Move a comment up in <machine/endian.h> that was accidentially moved
  down a few revisions ago.
o Reenable userland's use of optimized inline-asm versions of
  byteorder(3) functions.
o Fix ordering of prototypes vs. redefinition of byteorder(3)
  functions, so that the non-GCC (libc asm) case has proper
  prototypes.
o Add proper prototypes for byteorder(3) functions in <sys/param.h>.
o Prevent redundant duplicate prototypes by making use of the
  _BYTEORDER_PROTOTYPED define.
o Move the bswap16(), bswap32(), bswap64() C functions into MD space
  for platforms in which asm versions don't exist.  This significantly
  reduces the complexity of some things at the cost of duplicate code.

Reviewed by:	bde
2002-03-09 21:02:16 +00:00
Benno Rice
db9e94f707 Install the DSI and ISI trap handlers and their appropriate locations. 2002-03-07 12:22:44 +00:00
Benno Rice
3e4409437f Copy the "implementation" of pmap_prefault from sparc64. 2002-03-07 12:22:08 +00:00
Benno Rice
9164438ed2 Move tunable initialisation so it can get access to physmem. 2002-03-07 10:15:17 +00:00
Benno Rice
d2c1f57685 Calculate physmem. 2002-03-07 10:09:24 +00:00
Andrew R. Reiter
66c862bc1b - Move a comment from being on the same line as a #ifdef to the line
following it.  This should have gone in the previous commit, but
  misviewed Bruce's patch.

Requested by: bde
2002-02-28 21:52:08 +00:00
Benno Rice
677bcc872c cpu_switch now works, for kthreads at least. 2002-02-28 12:06:49 +00:00
Benno Rice
0e1338662a Various cleanups. 2002-02-28 12:00:24 +00:00
Benno Rice
b8160b5af4 - Prevent the decrementer interrupt handler from nesting.
- Catch some more cases of PSL_EE and PSL_RI getting out of sync.
2002-02-28 11:57:47 +00:00
Benno Rice
ac6ba8bd4a - Modify pmap_activate so it only marks the pmap as active.
- Add a pmap_deactivate function.
2002-02-28 11:55:44 +00:00
Benno Rice
3301d20ad9 GC an unused variable in cpu_fork(). 2002-02-28 08:48:58 +00:00
Andrew R. Reiter
216ae18217 - Fix panic() message and a couple style nits that snuck in from the
recent diagnostics commit (rev. 1.84).
2002-02-28 08:28:14 +00:00
Benno Rice
4eed0cf1be Make fork work, at least for kthreads. Switching still has some issues. 2002-02-28 03:24:07 +00:00
Benno Rice
b7ac845009 - Rearrange the sequence of events in powerpc_init() somewhat.
- Catch another instance of PSL_EE being cleared without PSL_RI.
2002-02-28 03:15:49 +00:00