Commit Graph

1898 Commits

Author SHA1 Message Date
Poul-Henning Kamp
7e2d76ff05 Remove the tc_update() function. Any frequency change to the
timecounter will be used starting at the next second, which is
good enough for sysctl purposes.  If better adjustment is needed
the NTP PLL should be used.
2002-04-26 10:06:26 +00:00
Yoshihiro Takahashi
0b9a090051 MFi386: revision 1.339. 2002-04-25 13:32:56 +00:00
Yoshihiro Takahashi
5497ee0acf Merged from sys/dev/syscons/syscons.c revision 1.383 2002-04-25 13:25:36 +00:00
Maxime Henrion
d786139c76 Rework the kernel environment subsystem. We now convert the static
environment needed at boot time to a dynamic subsystem when VM is
up.  The dynamic kernel environment is protected by an sx lock.

This adds some new functions to manipulate the kernel environment :
freeenv(), setenv(), unsetenv() and testenv().  freeenv() has to be
called after every getenv() when you have finished using the string.
testenv() only tests if an environment variable is present, and
doesn't require a freeenv() call. setenv() and unsetenv() are self
explanatory.

The kenv(2) syscall exports these new functionalities to userland,
mainly for kenv(1).

Reviewed by:	peter
2002-04-17 13:06:36 +00:00
KATO Takenori
f11aa8f5ca MFi386: revision 1.517. 2002-04-11 09:45:41 +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
Yoshihiro Takahashi
ba5c05f60b Merged from sys/dev/syscons/syscons.c revisions 1.381 and 1.382. 2002-04-06 06:47:23 +00:00
Yoshihiro Takahashi
58823205c4 Merged from sys/isa/fd.c revision 1.228. 2002-04-06 06:43:55 +00:00
Yoshihiro Takahashi
dda7d4dcec Merged from sys/dev/sio/sio.c revisions 1.370 and 1.371. 2002-04-06 06:19:10 +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
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
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
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
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
KATO Takenori
383519984f MFi386: revision 1.508. 2002-03-31 08:00:35 +00:00
Yoshihiro Takahashi
880d114c8a MFi386: revision 1.506. 2002-03-30 11:14:52 +00:00
KATO Takenori
f9c7a90bef MFi386: revision 1.507. 2002-03-27 11:29:40 +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
Poul-Henning Kamp
d306122d60 Push BIO_FORMAT into a local hack inside the floppy drivers where
it belongs.
2002-03-26 19:16:37 +00:00
Yoshihiro Takahashi
9a545499fe Merged from sys/dev/sio/sio.c revisions 1.366 and 1.369. 2002-03-25 13:41:06 +00:00
Yoshihiro Takahashi
fd9fe3e748 Merged from sys/dev/syscons/syscons.c revision 1.379. 2002-03-25 13:34:37 +00:00
Yoshihiro Takahashi
2a461eb324 Fix style. 2002-03-25 12:44:03 +00:00
KATO Takenori
26b2476ba6 MFi386: revision 1.65. 2002-03-20 12:28:03 +00:00
KATO Takenori
68ee1c91c8 Remove __P. 2002-03-20 12:22:31 +00:00
KATO Takenori
237a429e22 Remove __P. 2002-03-20 11:52:56 +00:00
KATO Takenori
a3535ef8a4 MFi386: revision 1.505 (remove __P.) 2002-03-20 11:31:17 +00:00
KATO Takenori
eca3d78127 MFi386: revision 1.504. 2002-03-20 11:15:05 +00:00
KATO Takenori
881cfd8387 MFi386: revision 1.503. 2002-03-20 11:13:41 +00:00
Yoshihiro Takahashi
d679987554 Use the dx register for the destination port address. A immediate port
address of outb is only 8 bits.

Submitted by:	chi@bd.mbn.or.jp (Chiharu Shibata)
MFC after:	3 days
2002-03-13 13:59:41 +00:00
Yoshihiro Takahashi
e454a5425b MFi386: revision 1.502 2002-03-13 13:45:00 +00:00
Yoshihiro Takahashi
369bbb548d Free allocated buffer at siodetach().
MFC after:	3 days
2002-03-10 07:22:42 +00:00
Yoshihiro Takahashi
2bc5801e8c MFi386: revision 1.501 2002-03-10 06:19:37 +00:00
Yoshihiro Takahashi
1de04d6919 - The pc98_ttspeedtab() function returns an error status instead of a divisor,
and sets a divisor to the third argument.
- The second argument of the pc98_set_baud_rate() function is changed from int
  to u_int.
2002-03-08 12:12:46 +00:00
Yoshihiro Takahashi
8a6d1ef4eb MFi386: revision 1.125 2002-03-08 11:38:00 +00:00
Yoshihiro Takahashi
47f470f8b5 MFi386: revision 1.498. 2002-03-02 13:19:22 +00:00
John Baldwin
a854ed9893 Simple p_ucred -> td_ucred changes to start using the per-thread ucred
reference.
2002-02-27 18:32:23 +00:00
Poul-Henning Kamp
817988be19 Disksort will not "munge" requests, BIO_ORDERED or not, so remove
use of BIO_ORDERED.
2002-02-22 09:14:06 +00:00
Yoshihiro Takahashi
9090144b01 MFi386: revision 1.497 2002-02-20 05:09:57 +00:00
Yoshihiro Takahashi
aeda92b5f2 Add bus_space_unmap() and bus_space_free() functions to release
a bus_space_handle allocated by bus_space_subregion().
2002-02-18 13:44:46 +00:00
Yoshihiro Takahashi
9d139b79d4 - Split the routine to initialize a bus_space_handle into the separate
function.
- Only access a bus_space_handle if the resource type is SYS_RES_MEMORY or
  SYS_RES_IOPORT.
- Add the bus_space_subregion supports.
2002-02-17 09:16:45 +00:00
Yoshihiro Takahashi
911eb59369 MFi386: revisions 1.334 and 1.335 2002-02-16 13:13:22 +00:00
Yoshihiro Takahashi
35c1f59123 MFi386: revisions 1.495 and 1.496 2002-02-16 12:59:58 +00:00
Yoshihiro Takahashi
49d069f669 Fall through from AT_TYPE_DIRECT to AT_TYPE_CDROM.
Old ATAPI CD-ROM drives return 0 (direct-access) as the type of the device.

(The ata driver has the same problem.)

MFC after:	3 days
2002-02-11 05:46:25 +00:00
Yoshihiro Takahashi
c02cadfe2d Cosmetic changes. 2002-02-10 10:27:37 +00:00
Yoshihiro Takahashi
cbf2d0338e - Refine the iskanji1 function.
- Print continuous ascii characters at a time.

Submitted by:	chi@bd.mbn.or.jp (Chiharu Shibata)
2002-02-10 10:15:41 +00:00
Yoshihiro Takahashi
a1e56a26b3 Fixed mouse cursor on a console.
Submitted by:	chi@bd.mbn.or.jp (Chiharu Shibata)
2002-02-10 10:14:39 +00:00
Yoshihiro Takahashi
4d42fb0aab MFi386: revisions 1.493 and 1.494. 2002-02-08 11:14:16 +00:00
Julian Elischer
079b7badea Pre-KSE/M3 commit.
this is a low-functionality change that changes the kernel to access the main
thread of a process via the linked list of threads rather than
assuming that it is embedded in the process. It IS still embeded there
but remove all teh code that assumes that in preparation for the next commit
which will actually move it out.

Reviewed by: peter@freebsd.org, gallatin@cs.duke.edu, benno rice,
2002-02-07 20:58:47 +00:00
Bruce Evans
766f247a59 Use osigreturn(2) instead of sigreturn(2) plus broken magic for returning
from old signal handlers.  This is simpler and faster, and fixes (new)
sigreturn(2) when %eip in the new signal context happens to match the
magic value (0x1d516).  0x1d516 is below the default ELF text section,
so this probably never broken anything in practice.

locore.s:
In addition, don't build the signal trampoline for old signal handlers
when it is not used.

alpha:
Not fixed, but seems to be even less broken in practice due to more
advanced magic. A false match occurs for register #32 in mc_regs[].
Since there is no hardware register #32, a false match is only possible
for direct calls to sigreturn(2) that happen to have the magic number
in the spare mc_regs[32] field.
2002-02-03 09:13:58 +00:00