Commit Graph

2901 Commits

Author SHA1 Message Date
Peter Wemm
720c992fe1 Fix the non-KSTACK_GUARD case.. It has been broken since the KSE
commit.  ptek was not been initialized.
2001-11-17 01:56:04 +00:00
Peter Wemm
6729cb8800 Start bringing i386/pmap.c into line with cleanups that were done to
alpha pmap.  In particular -
- pd_entry_t and pt_entry_t are now u_int32_t instead of a pointer.
  This is to enable cleaner PAE and x86-64 support down the track sor
  that we can change the pd_entry_t/pt_entry_t types to 64 bit entities.
- Terminate "unsigned *ptep, pte" with extreme prejudice and use the
  correct pt_entry_t/pd_entry_t types.
- Various other cosmetic changes to match cleanups elsewhere.
- This eliminates a boatload of casts.
- use VM_MAXUSER_ADDRESS in place of UPT_MIN_ADDRESS in a couple of places
  where we're testing user address space limits.  Assuming the page tables
  start directly after the end of user space is not a safe assumption.
There is still more to go.
2001-11-17 01:38:32 +00:00
Peter Wemm
ab29f8765d Oops, I accidently merged a whitespace error from the original commit.
(whitespace at end of line in rev 1.264 pmap.c).  Fix them all.
2001-11-16 02:31:20 +00:00
Peter Wemm
8ad881324c Converge/fix some debug code (#if 0'ed on alpha, but whatever)
- use NPTEPG/NPDEPG instead of magic 1024 (important for PAE)
- use pt_entry_t instead of unsigned (important for PAE)
- use vm_offset_t instead of unsigned for va's (important for x86-64)
2001-11-16 02:17:18 +00:00
Maxim Sobolev
3f1a8e9371 Allow bit 21 of EFLAGS register (PSL_ID) be changed in the use-mode without
ill effects. This should fix problems threaded programs are having with
auto-detecting CPU type.

Reported by:	Joe Clarke <marcus@marcuscom.com>
Tested by:	Joe Clarke <marcus@marcuscom.com>
Reviewed by:	jhb
MFC after:	1 week
2001-11-15 23:01:29 +00:00
John Baldwin
07da19144f - Don't enable interrupts in trap() if we trapped while holding a spin
lock as this usually makes the problem worse.
- If we get a page fault while holding a spin lock, treat it as a fatal
  trap and don't even bother calling into the VM since calling into the
  VM will panic when trying to lock Giant before we can get a useful
  message anyways.
2001-11-15 17:29:36 +00:00
John Baldwin
d900909439 Use newer constraints for atomic_cmpset().
Requested by:	bde
2001-11-12 18:53:45 +00:00
John Baldwin
20a2016a81 Use newer constraints for inline assembly for an operand that is both an
input and an output by using the '+' modifier rather than listing the
operand in both the input and output sections.

Reviwed by:	bde
2001-11-12 16:57:33 +00:00
Mitsuru IWASAKI
9c4223b4b6 Add two minor changes.
- clean up wakeup routing fixup code by using macros.
 - allocate pte object temporary for kernel thread to avoid kernel
   panic by events from sleep button or lid switch.
2001-11-11 15:51:30 +00:00
David E. O'Brien
7e46cddb17 Fix tab damage in rev 1.326. 2001-11-06 16:15:47 +00:00
Mitsuru IWASAKI
1611ea8727 Add S4BIOS sleep (BIOS hibernation) and DSDT overriding support.
- Add S4BIOS sleep implementation.  This will works well if MIB
   hw.acpi.s4bios is set (and of course BIOS supports it and hibernation
   is enabled correctly).
 - Add DSDT overriding support which is submitted by takawata originally.
   If loader tunable acpi_dsdt_load="YES" and DSDT file is set to
   acpi_dsdt_name (default DSDT file name is /boot/acpi_dsdt.aml),
   ACPI CA core loads DSDT from given file rather than BIOS memory block.
   DSDT file can be generated by iasl in ports/devel/acpicatools/.
 - Add new files so that we can add our proposed additional code to Intel
   ACPI CA into these files temporary.  They will be removed when
   similar code is added into ACPI CA officially.
2001-11-06 15:00:30 +00:00
Mike Barcroft
0ac2d551f2 o Add new header <sys/stdint.h>.
o Make <stdint.h> a symbolic link to <sys/stdint.h>.
o Move most of <sys/inttypes.h> into <sys/stdint.h>, as per C99.
o Remove <sys/inttypes.h>.
o Adjust includes in sys/types.h and boot/efi/include/ia64/efibind.h
  to reflect new location of integer types in <sys/stdint.h>.
o Remove previously symbolicly linked <inttypes.h>, instead create a
  new file.
o Add MD headers <machine/_inttypes.h> from NetBSD.
o Include <sys/stdint.h> in <inttypes.h>, as required by C99; and
  include <machine/_inttypes.h> in <inttypes.h>, to fill in the
  remaining requirements for <inttypes.h>.
o Add additional integer types in <machine/ansi.h> and
  <machine/limits.h> which are included via <sys/stdint.h>.

Partially obtain from:	NetBSD
Tested on:		alpha, i386
Discussed on:		freebsd-standards@bostonradio.org
Reviewed by:		bde, fenner, obrien, wollman
2001-11-02 18:05:43 +00:00
Mitsuru IWASAKI
f9390180fe Some fix for the recent apm module changes.
- Now that apm loadable module can inform its existence to other kernel
   components  (e.g. i386/isa/clock.c:startrtclock()'s TCS hack).
 - Exchange priority of SI_SUB_CPU and SI_SUB_KLD for above purpose.
 - Add simple arbitration mechanism for APM vs. ACPI.  This prevents
   the kernel enables both of them.
 - Remove obsolete `#ifdef DEV_APM' related code.
 - Add abstracted interface for Powermanagement operations.  Public apm(4)
   functions, such as apm_suspend(), should be replaced new interfaces.
   Currently only power_pm_suspend (successor of apm_suspend) is implemented.

Reviewed by:	peter, arch@ and audit@
2001-11-01 16:34:07 +00:00
Peter Wemm
e258f08ad8 Skip PG_UNMANAGED pages when we're shooting everything down to try and
reclaim pv_entries.  PG_UNMANAGED pages dont have pv_entries to reclaim.

Reported by:	David Xu <davidx@viasoft.com.cn>
2001-11-01 06:48:04 +00:00
Matt Jacob
ff6164046e Remove previous revision. smp_started back in subr_smp where it belongs. 2001-10-31 23:54:27 +00:00
Matt Jacob
6b094090d4 Make the actual volatile int smp_started live *somewhere*. This is
a temporary fix so that we can compile kernels. I waited 30 minutes
for a response from the person who would likely know, but any longer
is too long to wait with breakage at ToT.
2001-10-31 20:43:48 +00:00
Robert Watson
0ef2717b32 Spell deivces as devices. 2001-10-31 20:15:18 +00:00
Matthew Dillon
e302698320 Don't let pmap_object_init_pt() exhaust all available free pages
(allocating pv entries w/ zalloci) when called in a loop due to
an madvise().  It is possible to completely exhaust the free page list and
cause a system panic when an expected allocation fails.
2001-10-31 03:06:33 +00:00
Mike Smith
a91d0e1ccf Don't try to probe the PnP BIOS if ACPI is active. 2001-10-31 02:36:07 +00:00
Brian Feldman
4a44bd4b4a Add kmupetext(), a function that expands the range of memory covered
by the profiler on a running system.  This is not done sparsely, as
memory is cheaper than processor speed and each gprof mcount() and
mexitcount() operation is already very expensive.

Obtained from:	NAI Labs CBOSS project
Funded by:	DARPA
2001-10-30 15:04:57 +00:00
Warner Losh
8f3a0dd489 Move device lnc to isa section, since it no longer uses the compat shims.
Add comment about lnc.
Remove probe order comment from isa_compat.c.  That appears to no longer
be the case.
2001-10-30 06:08:56 +00:00
John Baldwin
d01404c828 Fix a typo in comment and #ifdef fixes: GRAP_PRIO -> GRAB_PRIO so that
x86 SMP kernels actually boot again to single user mode.

Pointy hat to:	jhb
Noticed by:	jlemon
2001-10-30 00:19:42 +00:00
Bruce Evans
3f91265a4c Don't set CR0_NE in cpu_setregs() for the SMP case, since setting it
is npx.c's job and setting it here breaks the edit-time option of not
setting it in npx.c.  (It is not set in the right places for the SMP
case, but always setting it here is harmless because there isn't even
an edit-time option to not set it.)
2001-10-29 16:31:15 +00:00
John Baldwin
9869fa1db8 - More whitespace and comment cleanups.
- Remove unused sw1a label.  A breakpoint can be set in choosethread() for
  the same effect.

Reviewed by:	bde
Submitted by:	bde (partly)
2001-10-28 16:18:22 +00:00
Mitsuru IWASAKI
f86214b6b8 Add APM compatibility feature to ACPI.
This emulates APM device node interface APIs (mainly ioctl) and
provides APM services for the applications.  The goal is to support
most of APM applications without any changes.
Implemented ioctls in this commit are:
 - APMIO_SUSPEND (mapped ACPI S3 as default but changable by sysctl)
 - APMIO_STANDBY (mapped ACPI S1 as default but changable by sysctl)
 - APMIO_GETINFO and APMIO_GETINFO_OLD
 - APMIO_GETPWSTATUS

With above, many APM applications which get batteries, ac-line
info. and transition the system into suspend/standby mode (such as
wmapm, xbatt) should work with ACPI enabled kernel (if ACPI works well :-)

Reviewed by:	arch@, audit@ and some guys
2001-10-26 17:43:05 +00:00
John Baldwin
8e2e767b1f Add a per-thread ucred reference for syscalls and synchronous traps from
userland.  The per thread ucred reference is immutable and thus needs no
locks to be read.  However, until all the proc locking associated with
writes to p_ucred are completed, it is still not safe to use the per-thread
reference.

Tested on:	x86 (SMP), alpha, sparc64
2001-10-26 08:12:54 +00:00
John Baldwin
e0e3030796 Currently no code does a CROSSJUMP() to sw1a, so we don't need a
CROSSJUMPTARGET() for it.

Submitted by:	bde
2001-10-25 16:54:21 +00:00
John Baldwin
02c41f11e3 Use %ecx instead of %ebx for the scratch register while updating %dr7 since
%ecx isn't a call safe register and thus we don't have to save and restore
it.

Submitted by:	bde
2001-10-25 16:52:43 +00:00
John Baldwin
7df8a724c2 - Fix typo in comment from previous revision.
- Fix a bug in the LDT changes where the wrong argument was passed to
  set_user_ldt() from cpu_switch().  The bug was passing a pointer to the
  ldt, but set_user_ldt() takes a pointer to the process' mdproc structure.

Submitted by:	bde
2001-10-25 16:50:16 +00:00
John Baldwin
163fd6fb97 Whitespace, comment, and string fixes.
Submitted by:	bde (mostly)
2001-10-25 16:47:01 +00:00
Jonathan Lemon
ae4da68827 Add PCI_ENABLE_IO_MODES option, for BIOSen that neglect this.
Submitted by: Andrew R. Reiter arr@watson.org
2001-10-25 04:44:50 +00:00
Luigi Rizzo
c5ca4c7e6e Backout 1.61 -- both intrcnt and intrnames are already exported
via sysctl under "hw".
2001-10-25 01:32:24 +00:00
John Baldwin
24db04598b Split the per-process Local Descriptor Table out of the PCB and into
struct mdproc.

Submitted by:	Andrew R. Reiter <arr@watson.org>
Silence on:	-current
2001-10-25 00:53:43 +00:00
John Baldwin
c5ca5a55a1 - Clean up the comments slightly here to make them more readable.
- Set the type and trapframe number for the F00F workaround since type
  can be used later by sv_transtrap().  Debuggers might also want to look
  at the type in the trapframe.

Submitted by:	bde (mostly)
2001-10-24 17:38:40 +00:00
John Baldwin
a33cbf355e Set the code and signal for the F00F hack fault directly instead of
changing the code in the trapframe and looping back to the top of trap
again.

Tested by:	cjc
2001-10-23 22:29:16 +00:00
Jonathan Lemon
991f976036 Implement multiple low-level console support. 2001-10-23 20:25:50 +00:00
Dag-Erling Smørgrav
1f04261973 [partially forced commit due to pilot error in earlier commit attempt]
{set,fill}_{,fp,db}regs() fixup:

 - Add dummy {set,fill}_dbregs() on architectures that don't have them.

 - KSEfy the powerpc versions (struct proc -> struct thread).

 - Some architectures had the prototypes in md_var.h, some in reg.h, and
   some in both; for consistency, move them to reg.h on all platforms.

These functions aren't really MD (the implementation is MD, but the interface
is MI), so they should move to an MI header, but I haven't figured out which
one yet.

Run-tested on i386, build-tested on Alpha, untested on other platforms.
2001-10-21 22:16:48 +00:00
Bruce Evans
08b00f49c3 MFi386:
- sys/pc98/pc98/npx.c 1.87 (2001/09/15; author: imp)
  I don't think pc98 has acpi at all, so ifdef the acpi attachments for
  now.

This completes merging sys/pc98/pc98/npx.c into sys/i386/isa/npx.c so
that the former can be removed.
2001-10-21 06:05:08 +00:00
Bruce Evans
abfde38316 MFpc98: fundamental differences. The magic numbers for the i/o port
and the irq are different for pc98, and are not very well handled (we
use a historical mess of hard-coded values, values from header files
and values from hints).
2001-10-21 05:56:03 +00:00
Bruce Evans
40d8c8da95 MFpc98: all changes in sys/pc98/pc98/npx.c related to FPU_ERROR_BROKEN.
- 1.58 (2000/09/01; author: kato)
  Fixed FPU_ERROR_BROKEN code.  It had old-isa code.
- 1.33 (1998/03/09; author: kato)
  Make FPU_ERROR_BROKEN a new-style option.
- 1.7 (1996/10/09; author: asami)
  Make sure FPU is recognized for non-Intel CPUs.

The log for rev.1.7 should have said something like:
Added FPU_ERROR_BROKEN option.  This forces a successful probe for
exception 16, so that hardware with a broken FPU error signal can sort
of work.
2001-10-21 05:18:30 +00:00
Matt Jacob
8c7c272c5a Remove wx. 2001-10-20 18:50:31 +00:00
David E. O'Brien
c932615213 Drop support for x87 emulation. Any CPU one would dare to run 5-CURRENT
on would have built-in FP support.
2001-10-20 01:15:54 +00:00
Matt Jacob
aaeac4f6c3 Make SCSI changer and SES devices standard in generic kernels.
Reviewed by:	ken@kdm.org
2001-10-16 22:22:58 +00:00
Bruce Evans
265e95d904 Deleted most of npxprobe(), and merged npxprobe1() back into npxprobe().
Use the normal interrupt handler (npx_intr()) instead of a special
probe-time interrupt handler, although this causes problems due to
the bus_teardown_intr() not actually even tearing down the interrupt
(these problems were avoided by doing interrupt attachment for the
special interrupt handler directly).  Fixed minor bitrot in comments.

The reason for the npxprobe()/npxprobe1() split mostly went away at
about the same time it was made (in 1992 or 1993 just before the
beginning of history).  386BSD ran all probes with interrupts completely
masked, and I didn't want to disturb this when I added an irq probe
to npxprobe().  An irq (not necessarily npx) must be acked for at least
external npx's to take the cpu out of the wait state that it enters
when an npx error occurs, so the probe must be done with a suitable
irq unmasked.  npxprobe() went to great lengths to unmask precisely
the npx irq.

Running probes with all interrupts masked was never really needed in
FreeBSD, since FreeBSD always masked interrupts well enough using
splhigh(), but it wasn't until rev.1.48 (1995/12/12) of autoconf.c
that all probes were run with CPU interrupts enabled.  This permits
npxprobe() to probe its irq using normal interrupt resources.  Note
that most drivers still can't depend on this.  It depends on the
interrupt handler being fast and the irq not being shared.
2001-10-16 14:12:35 +00:00
Bruce Evans
2504f76272 Commit my old fixes for cosmetic bugs in npxprobe() so that they aren't
lost when the buggy code goes away completely:
- don't assume that the npx irq number is >= 8.  Rev.1.73 only reversed
  part of the hard-coding of it to 13 in rev.1.66.
- backed out the part of rev.1.84 that added a highly confused comment
  about an enable_intr() being "highly bogus".  The whole reason for
  existence of npxprobe() (separate from the main probe, npxprobe1())
  is to handle the complications to make this enable_intr() safe.
- backed out the part of rev.1.94 that modified npxprobe().  It mainly
  broke the enable_intr() to restore_intr().  Restoring the interrupt
  state in a nested way is precisely what is not wanted here.  It was
  harmless in practice because npxprobe() is called with interrupts
  enabled, so restoring the interrupt state enables interrupts.  Most
  of npxprobe() is a no-op for the same reason...
2001-10-16 12:55:38 +00:00
Tor Egge
4c8f0aced5 Explicitly initialize the fpu when SSE is enabled since this no
longer happens as a side effect of calling npxsave.

Reviewed by:	peter, bde
2001-10-15 20:18:06 +00:00
Tor Egge
10ad529832 Change vmapbuf() to use pmap_qenter() and vunmapbuf() to use pmap_qremove().
This significantly reduces the number of TLB shootdowns caused by
vmapbuf/vunmapbuf when performing many large reads from raw disk devices.

Reviewed by:	dillon
2001-10-14 21:09:04 +00:00
Tor Egge
2334091845 Reduce the number of TLB shootdowns caused by a call to pmap_qenter()
from number of pages mapped to 1.

Reviewed by:	dillon
2001-10-14 20:56:55 +00:00
John Polstra
215e696b60 Correct the input/output/clobber specifications for the cpuid
instruction.  Stefan Keller <dres@earth.serd.org> noticed that CPU
identification was broken when compiled with -O2, and tracked it
down to the asm statement, which was storing values into memory
without specifying that memory was modified.  He submitted a patch
which added "memory" as a clobber, but I refined it further to
arrive at this version.

MFC after:	3 days
2001-10-12 16:49:28 +00:00
John Baldwin
fa78c35ad2 Oops, these already included sys/lock.h, they just did so after
sys/mutex.h which is too late.
2001-10-11 18:25:57 +00:00