Commit Graph

9578 Commits

Author SHA1 Message Date
Tim J. Robbins
7e1985fcd8 Replace the dangerous strcpy() call with strlcpy(), instead of the safe one
that was incorrectly changed in rev. 1.61.

Approved by:	re
2003-11-18 14:21:34 +00:00
Alan Cox
0543fa5398 - Change the i386's sf_buf implementation so that it never allocates
more than one sf_buf for one vm_page.  To accomplish this, we add
   a global hash table mapping vm_pages to sf_bufs and a reference
   count to each sf_buf.  (This is similar to the patches for RELENG_4
   at http://www.cs.princeton.edu/~yruan/debox/.)

   For the uninitiated, an sf_buf is nothing more than a kernel virtual
   address that is used for temporary virtual-to-physical mappings by
   sendfile(2) and zero-copy sockets.  As such, there is no reason for
   one vm_page to have several sf_bufs mapping it.  In fact, using more
   than one sf_buf for a single vm_page increases the likelihood that
   sendfile(2) blocks, hurting throughput.
   (See http://www.cs.princeton.edu/~yruan/debox/.)
2003-11-17 18:22:24 +00:00
Peter Wemm
0bfbe7b935 Widen the enable/disable helper function's argument in line with the
ithread_create() changes etc.  This should be mostly a NOP.
2003-11-17 06:10:15 +00:00
Bruce Evans
6a0d1abc5d Fixed pedantic warnings for statement-expressions using __extension__
and by not using a statement-expression for the non-expression
__PCPU_SET().
2003-11-17 04:40:58 +00:00
Bruce Evans
81bbee5996 Fixed a pedantic syntax error (a stray semicolon at the end of
PCPU_MD_FIELDS).
2003-11-17 03:40:41 +00:00
Bruce Evans
6d800f89c4 Fixed pedantic syntax errors. Many macros didn't permit a semicolon after
their invocation in the !KLD_MODULE case, but a semicolon is provided after
all invocations and is required in the KLD_MODULE case.
2003-11-17 02:55:25 +00:00
Bruce Evans
ed9800b4de Avoid a warning for compiling with `gcc -Wbad-function cast'. (This
is the warning that points to the bug in `(char *)malloc(...)' where
malloc() is implicitly declared as returning int.  We do similar things
here, but they work because u_int is the same as uintptr_t on i386's.)
2003-11-17 02:11:13 +00:00
Alan Cox
0ec3db3072 - Remove unnecessary synchronization from sf_buf_init(). (There is only
one active CPU when sf_buf_init() is performed.)
2003-11-16 23:40:06 +00:00
Maxim Sobolev
d09c47acd9 Pull latest changes from OpenBSD:
- improve sysinfo(2) syscall;
- add dummy fadvise64(2) syscall;
- add dummy *xattr(2) family of syscalls;
- add protos for the syscalls 222-225, 238-249 and 253-267;
- add exit_group(2) syscall, which is currently just wired to exit(2).

Obtained from:  OpenBSD
MFC after:      2 weeks
2003-11-16 15:07:10 +00:00
Bruce Evans
095ab45bde Restored the call to schedsofttty() (now spelled swi_sched(...)) again.
Its restoration in rev.1.102 was mistranslated to the equivalent of
setsofttty() in rev.1.105.  This increased overheads by causing a
context switch to the SWI handler after almost every interrupt.  The
increase was approx. 50% on a Celeron 366 (from 23 usec to 34 usec
per interrupt).
2003-11-16 13:31:45 +00:00
Alan Cox
e45db9b837 - Modify alpha's sf_buf implementation to use the direct virtual-to-
physical mapping.
 - Move the sf_buf API to its own header file; make struct sf_buf's
   definition machine dependent.  In this commit, we remove an
   unnecessary field from struct sf_buf on the alpha, amd64, and ia64.
   Ultimately, we may eliminate struct sf_buf on those architecures
   except as an opaque pointer that references a vm page.
2003-11-16 06:11:26 +00:00
Bruce Evans
416ab90e6b Localized the cy driver's locking. 2003-11-16 00:55:54 +00:00
Peter Wemm
5333eee414 Minor source sync with amd64. Use int as the type for the width
field of %.*s rather than size_t.
2003-11-14 22:29:21 +00:00
Peter Wemm
ad641f0fd5 Minor source sync with amd64. For %.*s printf formats, pass in an
int rather than a size_t.  cast the ioapicaddress variable via
uintptr_t before going to void *.
2003-11-14 22:26:29 +00:00
Peter Wemm
7b66b81ee4 Convert a couple of pointers to integers for source compatability with
amd64.
2003-11-14 22:23:30 +00:00
Peter Wemm
40e3826a9f Whitespace nit (sorry, couldn't help it) 2003-11-14 22:21:30 +00:00
John Baldwin
64bb257f0b Always install IDT entries for ATPIC interrupt sources. The APIC no
longer uses these interrupt vectors for its ISA interrupt pins, so these
entries will not be overwritten.  If we get a spurious interrupt from the
ATPIC when using the APIC, it will be treated as a stray interrupt instead
of causing a panic.
2003-11-14 21:02:49 +00:00
John Baldwin
43d63d12fa If an interrupt source doesn't have an ithread, treat it as a stray
interrupt.  This can only happen if an unregistered interrupt source
triggers an interrupt.
2003-11-14 21:00:32 +00:00
Peter Wemm
db049820e1 basemem is in K, not bytes. I think I tricked jhb into making the same
mistake I did and then committing it to cvs.
2003-11-14 20:51:07 +00:00
Peter Wemm
2edfe38b10 "opt_auto_eoi.h" is not used here anymore. See atpic.c. 2003-11-14 20:06:24 +00:00
John Baldwin
f082493f10 Replace magic numbers with macros for i8259A register constants. Still
need the ICW4 bits for PC98 though.
2003-11-14 19:13:06 +00:00
John Baldwin
be06bd496f - Bring in constants for 8259A registers from amd64 with some updated
comments from NetBSD's dev/ic/i8259A.h.  These bits really belong in
  a file of the same name as well, but this will do for now.
- Axe unused HWI_MASK.
2003-11-14 19:12:25 +00:00
John Baldwin
3ab2ba59f4 Shuffle the APIC interrupt vectors around a bit:
- Move the IPI and local APIC interrupt vectors up into the 0xf0 - 0xff
  range.  The pmap lazyfix IPI was reordered down next to the TLB
  shootdowns to avoid conflicting with the spurious interrupt vector.
- Move the base of APIC interrupts up 16 so that the first 16 APIC
  interrupts do not overlap the vectors used by the ATPIC.
- Remove bogus interrupt vector reservations for LINT[01].
- Now that 0xc0 - 0xef are available, use them for device interrupts.
  This increases the number of APIC device interrupts to 191.
- Increase the system-wide number of global interrupts to 191 to catch up
  to more APIC interrupts.

Requested by:	peter (2)
2003-11-14 19:10:13 +00:00
John Baldwin
274461c944 Fix a typo. We need opt_acpi.h not opt_apic.h for DEV_ACPI. 2003-11-14 19:00:02 +00:00
John Baldwin
dced4b0c31 Whitespace. 2003-11-13 18:16:37 +00:00
John Baldwin
69487322d8 Fix a typo. 2003-11-13 16:41:07 +00:00
Poul-Henning Kamp
daf9092bcd Don't disable the TSC with statclock_disable. 2003-11-13 10:02:12 +00:00
John Baldwin
0926d72773 Garbage collect unused values. 2003-11-12 18:14:34 +00:00
John Baldwin
bd9cd7e3f7 - Move manipulation of td_intr_nesting_level out of assembly interrupt
vector stubs and into the C functions they call.
- Move disabling and EOIing of interrupt sources out of PIC driver entry
  points and into intr_execute_handlers().  Intr_execute_handlers() only
  disables a source for an interrupt if it is a stray interrupt or has
  threaded handlers.  Sources with fast handlers no longer disable (mask)
  the source while executing the handlers.
- Move the setting of clkintr_pending into intr_execute_handlers() and set
  the variable for any interrupt source with a vector of 0.  (Should only
  be true for IRQ 0.)  This fixes clkintr_pending in the NO_MIXED_MODE
  case.
- Implement lapic_eoi() and use it to implement ioapic_eoi_source().
- Rename atpic_sched_ithd() to atpic_handle_intr() since it is used to
  handle all atpic interrupts and not just threaded ones.

Inspired by:	peter's changes to amd64 in p4 (1)
Requested by:	bde (2)
2003-11-12 18:13:57 +00:00
John Baldwin
fd7d14d30b Don't probe busses in the MP Table for the MP Table PCI bridge drivers
if the bus number doesn't correspond to a PCI bus in the MP Table.

Reported by:	jhay
2003-11-11 21:19:43 +00:00
John Baldwin
d3c01334ce Some motherboards like to remap the SCI (normally IRQ 9) up to a PCI
interrupt such as IRQ 22 or 19.  However, the ACPI BIOS still routes
interrupts from some PCI devices to the same intpin calling the pin
IRQ 22.  Thus, ACPI expects to address a single interrupt source via two
different names.  To work around this, if the SCI is remapped to a non-ISA
interrupt (i.e., greater than 15), then we use
acpi_OverrideInterruptLevel() function to tell ACPI to use IRQ 22 or 19
rather than IRQ 9 for the SCI.

Previously we would change IRQ 22 or 19's name to IRQ 9 when we encountered
such an Interrupt Source Override entry in the MADT which routed the SCI
properly but left PCI devices mapped to IRQ 22 or 19 w/o a routable
interrupt.

Tested by:	sos
2003-11-11 18:20:10 +00:00
John Baldwin
da17811e64 Enable HTT CPUs by default instead of halting them by default. Users
should now only have HTT CPUs if they have explicitly asked for them
either by enabling HyperThreading in the BIOS or by using the
MPTABLE_FORCE_HTT kernel option.
2003-11-11 17:16:15 +00:00
John Baldwin
f9dbba5c4e Disable probing of HTT CPUs by default for the MP Table case. HTT CPUs
should only be used if they are enabled in the BIOS.  Now that we support
enumerating CPUs using the ACPI MADT, any HTT machine using ACPI should
respect the BIOS setting.  For HTT machines with ACPI disabled in the
kernel, the MPTABLE_FORCE_HTT kernel option can be used to try to probe HTT
CPUs like have done in the past for the MP Table case.  This option should
only be enabled if HTT is enabled in the BIOS.
2003-11-11 17:14:26 +00:00
John Baldwin
d1ccde5545 - Remove empty rogue SMP hardware section.
- Add some additional comments about 'device apic' to note that it can be
  used in both UP and SMP kernels but is required for SMP kernels.
2003-11-11 15:52:31 +00:00
John Baldwin
7e42a90bf6 Use the same style of paragraph indention that the rest of NOTES uses in
the SMP section.
2003-11-11 15:49:37 +00:00
John Baldwin
20694d64a2 Axe rotted comment about MP Tables and PCI cards with built in bridges.
Now that we properly route PCI interrupts for the apic case, these cards
are no longer a problem.
2003-11-11 15:47:44 +00:00
John Baldwin
4e478d4521 MFamd64 (via P4, not in CVS yet):
- Use the static boot_address variable directly rather than passing it
  around to several functions.
- Clean up a couple of magic numbers.
2003-11-10 21:24:34 +00:00
John Baldwin
95020215db Bump APIC ID limits up to 32 since a machine with 16 CPUs will have APIC
IDs for the I/O APICs that are greater than 16.

Reported by:	John Cagle <john.cagle@hp.com>
2003-11-10 19:52:58 +00:00
John Baldwin
4c76854fad Update a comment related to SMP and describe the NO_MIXED_MODE kernel
option.

Requested by:	bde
2003-11-10 15:54:32 +00:00
John Baldwin
c68ec2c20b Update a comment.
Requested by:	bde
2003-11-10 15:48:30 +00:00
Marcel Moolenaar
fcaa2925a9 Change the clear_ret argument of get_mcontext() to be a flags argument.
Since all callers either passed 0 or 1 for clear_ret, define bit 0 in
the flags for use as clear_ret. Reserve bits 1, 2 and 3 for use by MI
code for possible (but unlikely) future use. The remaining bits are for
use by MD code.

This change is triggered by a need on ia64 to have another knob for
get_mcontext().
2003-11-09 20:31:04 +00:00
Seigo Tanimura
512824f8f7 - Implement selwakeuppri() which allows raising the priority of a
thread being waken up.  The thread waken up can run at a priority as
  high as after tsleep().

- Replace selwakeup()s with selwakeuppri()s and pass appropriate
  priorities.

- Add cv_broadcastpri() which raises the priority of the broadcast
  threads.  Used by selwakeuppri() if collision occurs.

Not objected in:	-arch, -current
2003-11-09 09:17:26 +00:00
Alan Cox
5e4a2fc9aa - Similar to post-PAE RELENG_4 split pmap_pte_quick() into two cases,
pmap_pte() and pmap_pte_quick().  The distinction being based upon the
   locks that are held by the caller.  When the given pmap is not the
   current pmap, pmap_pte() should be used when Giant is held and
   pmap_pte_quick() should be used when the vm page queues lock is held.
 - When assigning to PMAP1 or PMAP2, include PG_A anf PG_M.
 - Reenable the inlining of pmap_is_current().

In collaboration with:	tegge
2003-11-08 03:01:26 +00:00
John Baldwin
88861af1fb Dump the trigger and polarity of each intpin's default setting in the
bootverbose output.
2003-11-07 23:44:35 +00:00
Scott Long
eb3b7bf69f Document the lockfunc and lockfuncarg arguments to bus_dma_tag_create() in
the busdma headers.
2003-11-07 23:29:42 +00:00
John Baldwin
fab73bc221 Regen. 2003-11-07 21:36:35 +00:00
John Baldwin
572e11ac18 Sync up MP safe flags with global syscalls.master for the first time. This
includes read(), write(), close(), linux_setuid16(), linux_getuid16(),
linux_pause(), linux_nice(), linux_kill(), dup(), linux_pipe(),
linux_setgid16(), linux_getgid16(), linux_signal(), linux_geteuid16(),
linux_getegid16(), acct(), setpgid(), umask(), dup2(), getppid(),
getpgrp(), setsid(), linux_sigaction(), linux_sgetmask(), linux_ssetmask(),
linux_setreuid16(), linux_setregid16(), linux_sigsuspend(), getrusage(),
gettimeofday(), linux_getgroups16(), linux_setgroups16(), getpriority(),
setpriority(), linux_sigreturn(), linux_clone(), linux_sigprocmask(),
linux_getsid(), mlock(), munlock(), mlockall(), munlockall(),
sched_setparam(), sched_getparam(), linux_sched_setscheduler(),
linux_sched_getscheduler(), linux_sched_get_priority_max(),
linux_sched_get_priority_min(), sched_rr_get_interval(),
linux_setresuid16(), linux_getresuid16(), linux_setresgid16(),
linux_getresgid16(), linux_rt_sigaction(), linux_rt_sigprocmask(),
linux_rt_sigsuspend(), geteuid(), getegid(), setreuid(), setregid(),
linux_getgroups(), linux_setgroups(), setresuid(), getresuid(),
setresgid(), getresgid(), setuid(), and setgid().
2003-11-07 21:36:14 +00:00
John Baldwin
8dec768242 Only disable the old pin when doing a remap if it's current vector is still
the old vector.

Reported by:	sam
2003-11-06 14:47:53 +00:00
Peter Wemm
6350f49c4a OK, this might be a bit silly, but add another popcnt() candidate. 2003-11-06 01:24:25 +00:00
Eric Anholt
0ead5fc999 Spelling and grammar fixes.
PR:		kern/54658
Submitted by:	Roderick van Domburg <r.s.a.vandomburg@student.utwente.nl>
2003-11-05 23:56:02 +00:00