Commit Graph

655 Commits

Author SHA1 Message Date
Peter Grehan
03b6e02551 - add pmap_pagedaemon_waken variable
- remove dead code and fix warnings in pmap_zero_page/zero_page_area
- implement
    pmap_clear_reference
    pmap_ts_referenced
    pmap_page_exists_quick
    pmap_remove_all
- align pmap_qenter/qremove closer with i386 code
- fix vm_page locking in pmap_new_thread (from benno)
- add new parameter to pmap_clear_bit to return original
  pte value

Approved by:  benno
2003-02-01 02:56:48 +00:00
Benno Rice
cefa2c2c6d Make nirq mean 'number of irqs' and not 'last irq'. 2003-02-01 00:43:25 +00:00
Benno Rice
fe5e7c6b2b Rework of how memory resources are discovered and dealt with in macio.
- Store the OpenFirmware "reg" property in the macio ivars.
- Use a struct to define the structure of a "reg" property entry.
- Discover all memory ranges, not just the first.
- In ata_macio, manage our own range and hand out our own allocations using
  bus_space_subregion.
- Fix bus_space_subregion to handle subregions of sparse maps.
2003-01-30 11:28:29 +00:00
Benno Rice
7b4359b47d Put the right fix in. Instead of deleting the declaration of __FBSDID, we
undef it before this definition.
2003-01-28 10:54:31 +00:00
Benno Rice
a7c9d6bca5 Back the previous commit out. It didn't actually fix the problem I was
seeing and the memory barrier isn't needed with the bridges we're using.

Fix the function style however.
2003-01-27 12:59:52 +00:00
Benno Rice
b3c02b110a Back out some changes that snuck in with the last commit.
Pointy hat to:	benno
2003-01-27 04:32:10 +00:00
Benno Rice
622cfbd033 Flesh out bus_dmamap_sync. 2003-01-27 04:27:01 +00:00
Benno Rice
8519f3983c Use td->td_sticks, not td->td_kse->ke_sticks.
Forgotten by:	davidxu
2003-01-27 04:26:09 +00:00
Benno Rice
7b180a30e1 Remove a duplicate definition of the __FBSDID macro. 2003-01-27 04:24:57 +00:00
David Xu
0dbb100b9b Move UPCALL related data structure out of kse, introduce a new
data structure called kse_upcall to manage UPCALL. All KSE binding
and loaning code are gone.

A thread owns an upcall can collect all completed syscall contexts in
its ksegrp, turn itself into UPCALL mode, and takes those contexts back
to userland. Any thread without upcall structure has to export their
contexts and exit at user boundary.

Any thread running in user mode owns an upcall structure, when it enters
kernel, if the kse mailbox's current thread pointer is not NULL, then
when the thread is blocked in kernel, a new UPCALL thread is created and
the upcall structure is transfered to the new UPCALL thread. if the kse
mailbox's current thread pointer is NULL, then when a thread is blocked
in kernel, no UPCALL thread will be created.

Each upcall always has an owner thread. Userland can remove an upcall by
calling kse_exit, when all upcalls in ksegrp are removed, the group is
atomatically shutdown. An upcall owner thread also exits when process is
in exiting state. when an owner thread exits, the upcall it owns is also
removed.

KSE is a pure scheduler entity. it represents a virtual cpu. when a thread
is running, it always has a KSE associated with it. scheduler is free to
assign a KSE to thread according thread priority, if thread priority is changed,
KSE can be moved from one thread to another.

When a ksegrp is created, there is always N KSEs created in the group. the
N is the number of physical cpu in the current system. This makes it is
possible that even an userland UTS is single CPU safe, threads in kernel still
can execute on different cpu in parallel. Userland calls kse_create to add more
upcall structures into ksegrp to increase concurrent in userland itself, kernel
is not restricted by number of upcalls userland provides.

The code hasn't been tested under SMP by author due to lack of hardware.

Reviewed by: julian
2003-01-26 11:41:35 +00:00
Jeff Roberson
c3384118a1 - Introduce the SCHED_ULE and SCHED_4BSD options for compile time selection
of the scheduler.
 - Add SCHED_4BSD as the scheduler for all kernel config files in cvs.
2003-01-26 05:29:12 +00:00
Peter Grehan
cb87db740e Remove BAT invalidation. This is done later in the boot sequence,
so isn't required here, and seems to cause problems when booting
from disk.

Approved by:  benno
2003-01-22 01:47:05 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Jake Burkholder
7251b4bf93 Resolve relative relocations in klds before trying to parse the module's
metadata.  This fixes module dependency resolution by the kernel linker on
sparc64, where the relocations for the metadata are different than on other
architectures; the relative offset is in the addend of an Elf_Rela record
instead of the original value of the location being patched.
Also fix printf formats in debug code.

Submitted by:	Hartmut Brandt <brandt@fokus.gmd.de>
PR:		46732
Tested on:	alpha (obrien), i386, sparc64
2003-01-21 02:42:44 +00:00
Andrew Gallatin
87c48ca382 include cdefs.h so as to unbreak the libc build 2003-01-20 22:05:39 +00:00
Peter Grehan
8a7f89713e Removed unnecessary includes and brought up to date with ata
common code by adding lock functions.
2003-01-18 11:46:50 +00:00
Peter Grehan
f48649e525 Stub profile.h, required for userland builds.
Approved by:  Benno
2003-01-18 11:31:58 +00:00
Peter Grehan
4e84a94d6b <machine/ieee.h>, taken from sparc64
Approved by:  Benno
2003-01-18 11:30:59 +00:00
Peter Grehan
8e9238c604 Fix bugs with operand ordering and unnecessary sync/eieio ops. Mostly
obtained from Alpha atomic.h

Approved by:  Benno
2003-01-18 11:28:36 +00:00
Peter Grehan
add0e67094 Allow the MD frame definition to be seen in. Required for truss/ptrace.
Approved by:  Benno
2003-01-18 11:25:21 +00:00
Peter Grehan
5cbdd8139a RAIDframe requires LONG_BIT
Approved by:  Benno
2003-01-18 11:23:42 +00:00
Peter Grehan
0a9b03cb65 Prepended underscores to macro local vars, avoiding gcc "declaration
shadows global" warning

Approved by:  benno
2003-01-18 11:20:06 +00:00
Peter Grehan
0212856f3c Change definition of int64 to avoid gcc3.2.1 complaints. Taken from i386
Approved by:  benno
2003-01-18 11:18:42 +00:00
Matthew Dillon
e3669cee72 Merge all the various copies of vm_fault_quick() into a single
portable copy.
2003-01-16 00:02:21 +00:00
Matthew Dillon
f597900329 Merge all the various copies of vmapbuf() and vunmapbuf() into a single
portable copy.  Note that pmap_extract() must be used instead of
pmap_kextract().

This is precursor work to a reorganization of vmapbuf() to close remaining
user/kernel races (which can lead to a panic).
2003-01-15 23:54:35 +00:00
Benno Rice
e9a0b8260e Correct an off-by-one error in the calculation of the number of interrupt
resources we're managing.
2003-01-13 03:24:07 +00:00
Benno Rice
f13d93ce55 Make ofw_pci_find_node() use the reg property instead of the
assigned-addresses property. This works a lot better.
2003-01-09 12:24:19 +00:00
Benno Rice
a65a280612 Add a pcib variant to allow us to fix up interrupt assignments.
We probably want to do something wrt bus enumeration as well at some point.
2003-01-09 12:04:18 +00:00
Benno Rice
3599b2baf7 Allocate interrupts from the resource list. 2003-01-09 09:15:42 +00:00
Benno Rice
30081705c6 - Remove the ignore list and replace it with a quirk list of sorts.
- Add a quirk type for devices whose interrupt properties are actually
  attached to their children.
- Flag the "escc" (zs-alike serial controller) device as having this quirk.
- Rework the interrupt discovery code to deal with devices that have more than
  one interrupt.
2003-01-09 06:21:42 +00:00
Peter Grehan
1fbe1353ad - remove unneeded includes
- fix big in use of rid for SYS_RES_IRQ
- catch up with ATA common code by adding lock function
2003-01-09 01:22:30 +00:00
Peter Grehan
a5bd7d2982 Remove obsolete GEOM option, and bring diskless options up-to-date
Approved by:  benno
2003-01-09 01:09:41 +00:00
Peter Grehan
7d13e76928 Add page queues locking to vunmapbuf().
Obtained from: sparc64
Approved by:  benno
2003-01-08 12:29:59 +00:00
Peter Grehan
d2e30522fe Sync the i-cache after copying down the interrupt code
Approved by:  benno
2003-01-08 12:27:47 +00:00
Peter Grehan
9e283cf9a2 Be more conservative about re-enabling interrupts during trap processing
until atomic issues are fully sorted.

Approved by:  benno
2003-01-08 12:20:46 +00:00
Peter Grehan
b744fccd8a Fix incorrect error returns and sign-extension.
Approved by:  benno
2003-01-08 12:19:37 +00:00
Peter Grehan
18ca618548 Fetch the initial time from the rtc OpenFirmware node. This is a short-term
measure until the rtc h/w driver is written, and it's a lot better
than having "jan 1 1970" on filesys times.

Approved by:  benno
2003-01-08 12:17:44 +00:00
Peter Grehan
6dacd14d2a Remove obsolete NFS_ROOT conditional.
Approved by:  benno
2003-01-08 12:15:54 +00:00
Peter Grehan
dedc660361 Implement bus_dmamap_load_mbuf/bus_dmamap_load_uio.
Tested load_mbuf with GEM ethernet driver.

Submitted by: Hiten Pandya <hiten@unixdaemons.com> (modified by grehan)
2003-01-08 11:46:53 +00:00
Peter Grehan
a5550be852 - define HAS_STREAM_METHODS correctly
- dmamap_load_mbuf/load_uio prototypes

Submitted partly by:  Hiten Pandya <hiten@unixdaemons.com>
2003-01-08 11:43:36 +00:00
Jens Schweikhardt
9d5abbddbf Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.
2003-01-01 18:49:04 +00:00
Tim J. Robbins
b30a7779d4 MB_LEN_MAX is not MD, move it to the MI limits.h. 2002-12-22 06:38:45 +00:00
Julian Elischer
696058c3c5 Unbreak the KSE code. Keep track of zobie threads using the Per-CPU storage
during the context switch. Rearrange thread cleanups
to avoid problems with Giant. Clean threads when freed or
when recycled.

Approved by:	re (jhb)
2002-12-10 02:33:45 +00:00
Maxime Henrion
b19d9defef Under certain circumstances, we were calling kmem_free() from
i386 cpu_thread_exit().  This resulted in a panic with WITNESS
since we need to hold Giant to call kmem_free(), and we weren't
helding it anymore in cpu_thread_exit().  We now do this from a
new MD function, cpu_thread_dtor(), called by thread_dtor().

Approved by:	re@
Suggested by:	jhb
2002-11-22 23:57:02 +00:00
Daniel Eischen
2be05b70c9 Add getcontext, setcontext, and swapcontext as system calls.
Previously these were libc functions but were requested to
be made into system calls for atomicity and to coalesce what
might be two entrances into the kernel (signal mask setting
and floating point trap) into one.

A few style nits and comments from bde are also included.

Tested on alpha by: gallatin
2002-11-16 06:35:53 +00:00
Alan Cox
eea85e9bb6 Move pmap_collect() out of the machine-dependent code, rename it
to reflect its new location, and add page queue and flag locking.

Notes: (1) alpha, i386, and ia64 had identical implementations
of pmap_collect() in terms of machine-independent interfaces;
(2) sparc64 doesn't require it; (3) powerpc had it as a TODO.
2002-11-13 05:39:58 +00:00
Dag-Erling Smørgrav
97b67f3141 Print real / avail memory in megabytes rather than kilobytes. 2002-11-09 16:19:14 +00:00
Thomas Moestl
0fca57b8b8 Move the definitions of the hw.physmem, hw.usermem and hw.availpages
sysctls to MI code; this reduces code duplication and makes all of them
available on sparc64, and the latter two on powerpc.
The semantics by the i386 and pc98 hw.availpages is slightly changed:
previously, holes between ranges of available pages would be included,
while they are excluded now. The new behaviour should be more correct
and brings i386 in line with the other architectures.

Move physmem to vm/vm_init.c, where this variable is used in MI code.
2002-11-07 23:57:17 +00:00
Juli Mallett
751d91aabd Remove what was a temporary bogus assignment of bits of siginfo_t, as it does
not look like the prerequisites to fill it in properly will be in the tree
for the upcoming release, but it's mostly done, so there is no need for these
to stay around to remind us.
2002-11-06 14:53:35 +00:00
Peter Wemm
23eeeff7be Split 4.x and 5.x signal handling so that we can keep 4.x signal
handling clean and functional as 5.x evolves.  This allows some of the
nasty bandaids in the 5.x codepaths to be unwound.

Encapsulate 4.x signal handling under COMPAT_FREEBSD4 (there is an
anti-foot-shooting measure in place, 5.x folks need this for a while) and
finish encapsulating the older stuff under COMPAT_43.  Since the ancient
stuff is required on alpha (longjmp(3) passes a 'struct osigcontext *'
to the current sigreturn(2), instead of the 'ucontext_t *' that sigreturn
is supposed to take), add a compile time check to prevent foot shooting
there too.  Add uniform COMPAT_43 stubs for ia64/sparc64/powerpc.

Tested on: i386, alpha, ia64.  Compiled on sparc64 (a few days ago).
Approved by: re
2002-10-25 19:10:58 +00:00
Peter Grehan
f86c114f3d Add the USER_SR segment register to pcb state. Initialize correctly,
and save/restore during a context switch.

The USER_SR could be overwritten when the current thread was switched
out with a faulting copyin/copyout.

Approved by: Benno
2002-10-21 05:27:41 +00:00
Marcel Moolenaar
1aeb23cdfa Add two hooks to signal module load and module unload to MD code.
The primary reason for this is to allow MD code to process machine
specific attributes, segments or sections in the ELF file and
update machine specific state accordingly. An immediate use of this
is in the ia64 port where unwind information is updated to allow
debugging and tracing in/across modules. Note that this commit
does not add the functionality to the ia64 port. See revision 1.9
of ia64/ia64/elf_machdep.c.

Validated on: alpha, i386, ia64
2002-10-19 19:16:03 +00:00
Robert Watson
c7063e5913 Permits UFS ACLs to be used with the GENERIC kernel. Due to recent
ACL configuration changes, this shouldn't result in different code paths
for file systems not explicitly configured for ACLs by the system
administrator.  For UFS1, administrators must still recompile their
kernel to add support for extended attributes; for UFS2, it's sufficient
to enable ACLs using tunefs or at mount-time (tunefs preferred for
reliability reasons).  UFS2, for a variety of reasons, including
performance and reliability, is the preferred file system for use with
ACLs.

Approved by:	re
2002-10-19 16:54:15 +00:00
Peter Wemm
af3f249f3a The a.out md_coredump stuff isn't referenced anywhere anymore, and
hasn't been filled in for ages..  Nuked.
2002-10-15 00:02:50 +00:00
Mike Barcroft
4275e0d98d Remove the P1003_1B kernel option; it is no longer used. 2002-10-13 16:29:17 +00:00
Mike Barcroft
7a77412855 Add standards visibility conditionals. Change any uses of sigset_t to
struct __sigset to avoid depending on objects from <sys/signal.h>.
2002-10-13 00:31:46 +00:00
Mike Barcroft
ddb056b7d4 Add conditionals to allow va_list to be defined in other headers. 2002-10-06 22:02:06 +00:00
Mike Barcroft
0b058e3cbd o Add conditionals to allow va_list to be defined in other headers.
o Standardize on _MACHINE_STDARG_H_ to allow multiple header includes.
o Restrict the definition of va_copy() to C99 environments.
2002-10-06 22:01:07 +00:00
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