Commit Graph

557 Commits

Author SHA1 Message Date
Doug Rabson
4fc38782f0 Add ucode values for SIGFPE etc. Copied from i386/include/signal.h. 2002-04-10 19:24:08 +00:00
Doug Rabson
02939fd82c Add fields for saving/restoring the IA-32 state. 2002-04-10 19:23:21 +00:00
Doug Rabson
01426578dc Add definitions for IA-32 exceptions, interrupts and intercepts. 2002-04-10 19:22:45 +00:00
Doug Rabson
ba4d213488 Call ast() from the syscall exit path as well as for full exception
restores.
2002-04-10 16:35:44 +00:00
Doug Rabson
794cc3d8ae Initialise PCPU_GET(current_pmap) in pmap_bootstrap - cpu_switch needs
to be sure that it is always correct and this was not true for the first
call to cpu_switch. When thread0 resumed later, it ended up calling
pmap_install with a null pmap, which is bad.
2002-04-10 16:34:52 +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
Doug Rabson
63fe680462 Define a complete set of accessors for application and control registers. 2002-04-09 09:03:30 +00:00
Doug Rabson
2d1fae48d5 Don't call make_dev from ssccnattach - its far too early to work properly. 2002-04-09 08:53:57 +00:00
Peter Wemm
3892098bea ia64 depends on ACPICA on actual hardware. It might be worth having a
seperate SKI config (like we had SIMOS for alpha).
2002-04-07 04:36:02 +00:00
Marcel Moolenaar
621342bc34 Add prototype for bootpc_init when BOOTP is defined. 2002-04-06 21:09:08 +00:00
Doug Rabson
ce5c49f1aa Merge fixes for dbtob() and btodb() from alpha/include/param.h. This stops
ffs_snapshot() from using negative numbers for byte offsets in large file
systems.
2002-04-06 12:55:48 +00:00
Marcel Moolenaar
9281a1bd5f Fix a braino in the alignment of the segment contents after dumping
the program headers. As a result of this, dumplo was advanced too
much causing the end of the dump and most notably the trailing
dump header to be written beyond the end of the the dump medium.
2002-04-06 05:56:33 +00:00
John Baldwin
6008862bc2 Change callers of mtx_init() to pass in an appropriate lock type name. In
most cases NULL is passed, but in some cases such as network driver locks
(which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used.

Tested on:	i386, alpha, sparc64
2002-04-04 21:03:38 +00:00
Brian Somers
920987e3c1 Back out the previous commit.
In the i386 case, options BOOTP requires options NFS_ROOT as well as
options NFSCLIENT.  With *both* the NFS options, a bootpc_init()
prototype is brought in by nfsclient/nfsdiskless.h.

In the ia64 case, it just doesn't work and my change just pushes it
further away from working.

Suggested to be wrong by:	bde
2002-04-04 17:58:21 +00:00
Bruce Evans
79065dba2a Moved signal handling and rescheduling from userret() to ast() so that
they aren't in the usual path of execution for syscalls and traps.
The main complication for this is that we have to set flags to control
ast() everywhere that changes the signal mask.

Avoid locking in userret() in most of the remaining cases.

Submitted by:	luoqi (first part only, long ago, reorganized by me)
Reminded by:	dillon
2002-04-04 17:49:48 +00:00
Brian Somers
55d884db38 Pre-declare bootpc_init() so that options BOOTP doesn't break the
build in ia64 and i386 due to -Werror.
2002-04-04 14:27:57 +00:00
Alan Cox
09d30f2c8d o Kill the MD grow_stack(). Call the MI vm_map_growstack()
in its place.
 o Eliminate the use of useracc() and grow_stack() from sendsig().

Reviewed by:	peter
2002-04-04 06:59:18 +00:00
Marcel Moolenaar
35c3b43f7b o Add architecture specific segment types.
o  Add architecture specific segment attributes.
2002-04-04 06:42:49 +00:00
Ruslan Ermilov
12c79eb288 Dike out a highly insecure UCONSOLE option.
TIOCCONS must be able to VOP_ACCESS() /dev/console to succeed.

Obtained from:	OpenBSD
2002-04-03 10:56:59 +00:00
Marcel Moolenaar
5cb87b0c59 Make the kernel dump header endianness invariant by always dumping
in dump byte order (=network byte order). Swap blocksize and dumptime
to avoid extraneous padding on 64-bit architectures. Use CTASSERT
instead of runtime checks to make sure the header is 512 bytes large.
Various style(9) fixes.

Reviewed by: phk, bde, mike
2002-04-03 07:24:12 +00:00
Marcel Moolenaar
daf8eed86e o GC dumplo
o  Replace the string lit. "ia64" with MACHINE
2002-04-03 05:16:09 +00:00
Marcel Moolenaar
b484ea8c69 Use a twiddle to show that we're busy dumping. The initial code
emitted the total number of pages it still had to dump prior to
dumping a block of up to 16 pages. For a 128MB region this would
result in 8M number of printf()s. Barf!

The problem in general is that memory typically has one really
big region and a number of "scattered" smaller regions. Some may
even be just a few pages. The twiddle works best for now, but
it doesn't really give a good progress indication for the large
regions. Those are the cases where you definitely want good PI
to avoid having the user turn into a twiddle :-)
2002-04-03 05:11:59 +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
Marcel Moolenaar
a64f21ce5d Initial implementation of the ia64 kernel dumper. The dumper
constructs an ELF image, consisting of the ELF header, for
each memory region a program header, followed by the memory
contents for each region. It does blocked I/O for the headers
as they are typically smaller than DEV_BSIZE.
2002-04-02 10:51:32 +00:00
Marcel Moolenaar
6cb7cf5826 o GC totalphysmem and resvmem.
o  Rephrase comment describing that the memory region can contain
   the kernel.
2002-04-02 07:20:42 +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
John Baldwin
44731cab3b Change the suser() API to take advantage of td_ucred as well as do a
general cleanup of the API.  The entire API now consists of two functions
similar to the pre-KSE API.  The suser() function takes a thread pointer
as its only argument.  The td_ucred member of this thread must be valid
so the only valid thread pointers are curthread and a few kernel threads
such as thread0.  The suser_cred() function takes a pointer to a struct
ucred as its first argument and an integer flag as its second argument.
The flag is currently only used for the PRISON_ROOT flag.

Discussed on:	smp@
2002-04-01 21:31:13 +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
Marcel Moolenaar
12ae303a12 Transition to a model where the loader passes the address of the
bootinfo block in register r8. In locore.s we save the address
in the global variable 'pa_bootinfo'. In machdep.c we compare
this value against the hardwired address, but don't depend on its
validity yet (ie: we still expect the bootinfo block to be at the
hardwired address). After a small amount of time, we'll flip the
switch and depend on the loader to pass us the address. From that
moment on the loader is free to put it anywhere it likes, provided
the machine itself likes it as well.

Add some verbosity to aid in the transition. We emit a message if
the loader didn't pass the address and we also emit a message if
there's no bootinfo block at the hardwired address.

While in locore.s, reduce the number of redundant serialization
instructions. A srlz.i is a proper superset of a srlz.d and thus
is a valid replacement. Also slightly reorder the movl instructions
to improve bundle density.
2002-03-30 23:25:22 +00:00
Jake Burkholder
d0ce9a7e07 Remove abuse of intr_disable/restore in MI code by moving the loop in ast()
back into the calling MD code.  The MD code must ensure no races between
checking the astpening flag and returning to usermode.

Submitted by:	peter (ia64 bits)
Tested on:	alpha (peter, jeff), i386, ia64 (peter), sparc64
2002-03-29 16:35:26 +00:00
David E. O'Brien
ae7c70d595 style(9)
Approved by:	jake
2002-03-28 02:54:44 +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
Marcel Moolenaar
d8869cc205 o Revert previous commit in asm.h. There's no need to undefine
__FBSDID first, because it should not be defined at all,
o  Remove inclusion of cdefs.h in locore.s.

Pointed out by: peter
2002-03-27 02:20:09 +00:00
David E. O'Brien
1640869c31 Get the guarding right. The IA-64 has a different organization for this
than our other platforms.
2002-03-26 02:59:00 +00:00
David E. O'Brien
c543d983fa Guard against redefining __gnuc_va_list. 2002-03-24 11:25:46 +00:00
Marcel Moolenaar
9156494211 Undefine __FBSDID before defining it as it's already defined at
that point.
2002-03-24 10:28:04 +00:00
David E. O'Brien
439a4003ab ASM versions of __FBSDID. 2002-03-23 02:01:27 +00:00
Doug Rabson
6720311838 Change critical_t to register_t for intr_disable/restore. 2002-03-21 09:50:11 +00:00
Doug Rabson
77b51ddfcd Change cpu_critical_enter/exit to intr_disable/restore. 2002-03-21 09:35:18 +00:00
Peter Wemm
c302e53c27 In UP mode, the primary cpu's per-cpu current_pmap was not initialized -
this was only done as a side effect of calling cpu_mp_start().  I haven't
actually tested that this fixes UP kernels, but it feels about right.
2002-03-21 07:41:02 +00:00
Jeff Roberson
eca80f82ea Remove references to vm_zone.h and switch over to the new uma API.
Approved by:	peter
2002-03-21 02:46:56 +00:00
Alfred Perlstein
e41ed5da90 Remove __P.
Reviewd by: peter
2002-03-20 23:30:31 +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
Doug Rabson
a2763677ec Change intr_enable to intr_restore for consistency with sparc64. 2002-03-20 17:28:40 +00:00
Doug Rabson
c526161420 Replace calls to cpu_critical_enter/exit with appropriate calls to
either explicitly disable interrupts or use a real critical section,
as appropriate.
2002-03-20 10:04:08 +00:00
Doug Rabson
95f7adfa1a Recreate intr_disable/intr_enable and implement cpu_critical_enter/exit
in terms of that (for now).
2002-03-20 10:00:05 +00:00
Peter Wemm
3acb2ae91f #if 0 some unused variables (only in #if 0 code) 2002-03-19 12:15:29 +00:00