Commit Graph

1181 Commits

Author SHA1 Message Date
tmm
7b769ce88f Retire cpu_sched_exit(); it is not used any more. 2004-05-26 12:09:39 +00:00
bde
f309a749f5 Moved most of the "MI" definitions and declarations from <machine/profile.h>
to <sys/gmon.h>.  Cleaned them up a little by not attempting to ifdef
for incomplete and out of date support for GUPROF in userland, as in
the sparc64 version.
2004-05-19 15:41:26 +00:00
stefanf
e784f59f15 <stdint.h> should define WINT_M{AX,IN} independent from whether WCHAR_MIN is
defined.  Otherwise first including <wchar.h> and then <stdint.h> leads to no
WINT_M{AX,IN} at all.

PR:		64956
Approved by:	das (mentor)
2004-05-18 16:04:57 +00:00
marcel
120eb39889 Fix typo in comment. While here, end the sentence with a period and
remove the empty line between the fdc and sio devices. The empty
line suggests that the comment applies to fdc only while it applies
to all following devices and options.

Typo spotted by: ru@
2004-05-17 18:36:14 +00:00
marcel
c2f5be1df1 Unbreak build due to previous commit: now that elf_reloc_internal()
gets the relocation base passed in relocbase, we cannot declare a
local variable with the same name. Assume the argument holds the
same value as the local variable did...
2004-05-17 07:11:37 +00:00
marcel
89ce208d9d filter out the fdc(4) and sio(4) devices and corresponding options.
Note that cy(4) uses COM_MULTIPORT, so we need to keep that option.
2004-05-17 07:03:01 +00:00
peter
ea4215c521 Make a small revision to the api between the elf linker core and the
elf_reloc() backends for two reasons.  First, to support the possibility
of there being two elf linkers in the kernel (eg: amd64), and second, to
pass the relocbase explicitly (for relocating .o format kld files).
2004-05-16 20:00:28 +00:00
marcel
27622b9560 Revert previous commit. We should not get any FP traps from within
the kernel. We can guarantee this by resetting the FP status register.
This masks all FP traps. The reason we did get FP traps was that we
didn't reset the FP status register in all cases.

Make sure to reset the FP status register in syscall(). This is one of
the places where it was forgotten.

While on the subject, reset the FP status register only when we trapped
from user space.
2004-05-07 05:35:31 +00:00
marcel
254a0ce34e Make sure to sanitize the FP status register. Specifically this
masks all FP traps, which should not happen in the kernel.
2004-05-07 05:29:12 +00:00
njl
3d06d54b9d Make unnecessary globals static and remove unused includes.
Pointed out by:	cscout
2004-05-06 02:18:58 +00:00
njl
f6bbab06a9 Add an MI implementation of the ACPI global lock routines and retire the
individual asm versions.  The global lock is shared between the BIOS and
OS and thus cannot use our mutexes.  It is defined in section 5.2.9.1 of
the ACPI specification.

Reviewed by:	marcel, bde, jhb
2004-05-05 20:04:14 +00:00
marcel
e99f44ed74 Floating-point faults and exceptions can happen in the kernel too.
Do not panic when it happens; handle them.

Run into by: das
2004-05-03 04:13:31 +00:00
marcel
d9f5acd3be Catch- and cleanup:
o  Fix and improve comments and references,
o  Add PFIL_HOOKS, UFS_ACL and UFS_DIRHASH,
o  Switch from SCHED_4BSD to SCHED_ULE,
o  Remove SCSI_DELAY (there's no SCSI support),
2004-05-03 00:10:59 +00:00
obrien
3937b2c0ab Spell Ethernet correctly. 2004-05-02 18:57:29 +00:00
marcel
5cc6b87ef2 Verify the MADT checksum before using the table.
Submitted by: njl
2004-05-01 04:08:14 +00:00
das
0d58ef0153 Hide FLT_EVAL_METHOD and DECIMAL_DIG in pre-C99 compilation
environments.

PR:		63935
Submitted by:	Stefan Farfeleder <stefan@fafoe.narf.at>
2004-04-25 02:36:29 +00:00
njl
d3289512e2 Don't check for NULL, device_get_softc() always succeeds. 2004-04-21 02:10:58 +00:00
alc
815fa94ff6 MFamd64
Simplify the sf_buf implementation.  In short, make it a veneer
 over the direct virtual-to-physical mapping.
2004-04-18 07:11:12 +00:00
alc
b3d75fb6f4 Remove a comment that refers to avail_start and avail_end as these
variables no longer exist.
2004-04-11 06:37:36 +00:00
alc
c380417937 - pmap_kenter_temporary() is unused by machine-independent code. Therefore,
move its declaration to the machine-dependent header file on those
   machines that use it.  In principle, only i386 should have it.
   Alpha and AMD64 should use their direct virtual-to-physical mapping.
 - Remove pmap_kenter_temporary() from ia64.  It is unused.  Approved
   by: marcel@
2004-04-10 22:41:46 +00:00
imp
b49b7fe799 Remove advertising clause from University of California Regent's
license, per letter dated July 22, 1999 and email from Peter Wemm,
Alan Cox and Robert Watson.

Approved by: core, peter, alc, rwatson
2004-04-07 20:46:16 +00:00
alc
91e3fa34d0 Remove avail_end. As of yesterday, it is unused. 2004-04-06 01:38:28 +00:00
alc
c5bba2b0af Remove avail_start on those platforms that no longer use it. (Only amd64
does anything with it beyond simple initialization.)
2004-04-05 04:08:00 +00:00
alc
19e5eda309 Remove unused arguments from pmap_init(). 2004-04-05 00:37:50 +00:00
alc
1ec4d75266 In some cases, sf_buf_alloc() should sleep with pri PCATCH; in others, it
should not.  Add a new parameter so that the caller can specify which is
the case.

Reported by:	dillon
2004-04-03 09:16:27 +00:00
marcel
d00cd2e215 MFi386: correctly calculate the top-of-stack when a kthread is created
with a larger kernel stack. Remove inclusion of opt_kstack_pages.h now
that it's unused.
2004-03-27 17:44:25 +00:00
marcel
51e2585455 In breakpoint(), use a different immediate to make sure we can
distinguish between debugger inserted breakpoints and fixed
breakpoints. While here, make sure the break instruction never
ends up in the last slot of a bundle by forcing it to be an
M-unit instruction. This makes it easier for use to skip over
it.
2004-03-21 01:41:29 +00:00
alc
293aebf5cc - Add uiomove_fromphys() implementations to alpha and ia64. These only
differ trivially from amd64.
 - Correct a spelling error in a comment.
2004-03-20 21:06:20 +00:00
marcel
7e4265388d Introduce the cpumask_t type. The purpose of the type is to create a
level of abstraction for any and all CPU mask and CPU bitmap variables
so that platforms have the ability to break free from the hard limit
of 32 CPUs, simply because we don't have more bits in an u_int. Note
that the type is not supposed to solve massive parallelism, where
the number of CPUs can be larger than the width of the widest integral
type. As such, cpumask_t is not supposed to be a compound type. If
such would be necessary in the future, we can deal with the issues
then and there. For now, it can be assumed that the type is integral
and unsigned.

With this commit, all MD definitions start off as u_int. This allows
us to phase-in cpumask_t at our leasure without breaking anything.
Once cpumask_t is used consistently, platforms can switch to wider
(or smaller) types if such would be beneficial (or not; whatever :-)

Compile-tested on: i386
2004-03-20 20:41:40 +00:00
marcel
71c20a9d3f Replace uint64_t with unsigned long in struct dbreg. 2004-03-20 05:27:14 +00:00
marcel
af422b3c31 Remove the last traditional hints. These hints only served the purpose
for uart(4) to figure out which device to use as console. Use this file
to define hw.uart.console instead so that we don't have to put it in
the default loader.conf, which makes it hard to override.
2004-03-20 04:23:03 +00:00
jmg
0368fc0848 sync comment with i386's isa.c.. This removes a comment that is YEARS
old...
2004-03-17 21:45:55 +00:00
alc
a2e820d27b Refactor the existing machine-dependent sf_buf_free() into a machine-
dependent function by the same name and a machine-independent function,
sf_buf_mext().  Aside from the virtue of making more of the code machine-
independent, this change also makes the interface more logical.  Before,
sf_buf_free() did more than simply undo an sf_buf_alloc(); it also
unwired and if necessary freed the page.  That is now the purpose of
sf_buf_mext().  Thus, sf_buf_alloc() and sf_buf_free() can now be used
as a general-purpose emphemeral map cache.
2004-03-16 19:04:28 +00:00
scottl
d4f628402f Now that contigfree() does not require Giant, don't grab it in busdma. 2004-03-13 15:42:59 +00:00
marcel
849eb2d8cd Identify the Deerfield processor. Deerfield is a low-voltage variant
based on the Madison core and targeting the low end of the spectrum.
Its clock frequency is 1Ghz, whereas Madison starts at 1.3Ghz. Since
the CPUID information is the same for Madison and Deerfield, we use
the clock frequency to identify the processor.
Supposedly the Deerfield only uses 62W, which seems to be less than
modern Xeon processors (about 70W) and about half what a Madison would
need.
2004-03-10 22:23:20 +00:00
alc
f13324f65b Retire pmap_pinit2(). Alpha was the last platform that used it. However,
ever since alpha/alpha/pmap.c revision 1.81 introduced the list allpmaps,
there has been no reason for having this function on Alpha.  Briefly,
when pmap_growkernel() relied upon the list of all processes to find and
update the various pmaps to reflect a growth in the kernel's valid
address space, pmap_init2() served to avoid a race between pmap
initialization and pmap_growkernel().  Specifically, pmap_pinit2() was
responsible for initializing the kernel portions of the pmap and
pmap_pinit2() was called after the process structure contained a pointer
to the new pmap for use by pmap_growkernel().  Thus, an update to the
kernel's address space might be applied to the new pmap unnecessarily,
but an update would never be lost.
2004-03-07 21:06:48 +00:00
alc
3f80ac14a2 Integrate the code from pmap_pinit2() into pmap_pinit(), leaving
pmap_pinit2() empty.

Approved by:	marcel
2004-03-07 07:43:13 +00:00
alc
d1279ddf19 Remove unused declarations. (Some time ago, these variables became fields
of vm/vm.h's struct kva_md_info.)
2004-03-07 07:13:15 +00:00
le
d23ba57557 Fix syntax errors and wrong function prototypes in several MD header
files when using non-GNUC compilers.

PR:             kern/58515
Submitted by:   Stefan Farfeleder <stefan@fafoe.narf.at>
Approved by:    grog (mentor), obrien
2004-03-05 09:19:59 +00:00
marcel
2a9068ac03 Do not pre-map the I/O port space. On the Intel Tiger 4 this conflicts
with a memory mapped I/O range that's immediately before it and is
not 256MB aligned. As a result, when an address is accessed in the
memory mapped range and a direct mapping is added for it, it overlaps
with the pre-mapped I/O port space and causes a machine check.

Based on a patch from: arun@
2004-02-22 02:10:48 +00:00
phk
ad925439e0 Device megapatch 4/6:
Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
2004-02-21 21:10:55 +00:00
phk
fcf7e634fb Device megapatch 3/6:
Add missing D_TTY flags to various drivers.

Complete asserts that dev_t's passed to ttyread(), ttywrite(),
ttypoll() and ttykqwrite() have (d_flags & D_TTY) and a struct tty
pointer.

Make ttyread(), ttywrite(), ttypoll() and ttykqwrite() the default
cdevsw methods for D_TTY drivers and remove the explicit initializations
in various drivers cdevsw structures.
2004-02-21 20:41:11 +00:00
phk
df397dedea Device megapatch 1/6:
Free approx 86 major numbers with a mostly automatically generated patch.

A number of strategic drivers have been left behind by caution, and a few
because they still (ab)use their major number.
2004-02-21 19:42:58 +00:00
phk
49c92e5706 Change the disk(9) API in order to make device removal more robust.
Previously the "struct disk" were owned by the device driver and this
gave us problems when the device disappared and the users of that device
were not immediately disappearing.

Now the struct disk is allocate with a new call, disk_alloc() and owned
by geom_disk and just abandonned by the device driver when disk_create()
is called.

Unfortunately, this results in a ton of "s/\./->/" changes to device
drivers.

Since I'm doing the sweep anyway, a couple of other API improvements
have been carried out at the same time:

The Giant awareness flag has been flipped from DISKFLAG_NOGIANT to
DISKFLAG_NEEDSGIANT

A version number have been added to disk_create() so that we can detect,
report and ignore binary drivers with old ABI in the future.

Manual page update to follow shortly.
2004-02-18 21:36:53 +00:00
marcel
f24f6452fe Sort PFIL_HOOKS. 2004-01-27 20:22:53 +00:00
jeff
8a4acc2156 - Recruit some new ULE users by making it the default scheduler in GENERIC.
ULE will be in a probationary period to determine whether it will be left
   as the default in 5.3 which would likely mean the rest of the 5.x series.
2004-01-24 21:38:52 +00:00
nectar
70865363ca Add PFIL_HOOKS to the GENERIC kernel configuration, primarily so
that one can load the IPFilter module (which requires PFIL_HOOKS).

Requested by:	Many, for over a year
2004-01-24 14:59:51 +00:00
marcel
1bf3c3e643 Fix handling of FP traps:
o  For traps, the cr.iip register points to the next instruction to
   execute on interrupt return (modulo slot). Since we need to get
   the bundle of the instruction that caused the FP fault/trap, make
   sure we fetch the previous bundle if the next instruction is in
   fact the first in a bundle.
o  When we call the FPSWA handler, we need to tell it whether it's
   a trap or a fault (first argument). This was hardcoded to mean a
   fault.

Also, for FP faults, when a fault is converted to a trap, adjust the
cr.iip and cr.ipsr registers to point to the next instruction. This
makes sure that the SIGFPE handler gets a consistent state.
2004-01-20 03:29:24 +00:00
marcel
b7c0148bb2 s/framep/tf/g -- this normalizes on the use of tf to point to the
trapframe and improves grep-ability.
2004-01-20 02:35:46 +00:00
des
849bd5ea0c Whitespace nit. 2004-01-13 15:30:36 +00:00