Commit Graph

1868 Commits

Author SHA1 Message Date
Doug Rabson
4d84a58d1d Add definitions for TLS relocations. 2004-08-02 19:12:17 +00:00
Scott Long
5ba0615c03 Optimize intr_execute_handlers() by combining the pic_disable_source() and
pic_eoi_source() into one call.  This halves the number of spinlock operations
and indirect function calls in the normal case of handling a normal (ithread)
interrupt.  Optimize the atpic and ioapic drivers to use inlines where
appropriate in supporting the intr_execute_handlers() change.

This knocks 900ns, or roughly 1350 cycles, off of the time spent servicing an
interrupt in the common case on my 1.5GHz P4 uniprocessor system.  SMP systems
likely won't see as much of a gain due to the ioapic being more efficient than
the atpic.  I'll investigate porting this to amd64 soon.

Reviewed by:	jhb
2004-08-02 15:31:10 +00:00
Scott Long
9352fe30a0 Turn off PREEMPTION by default while it gets debugged. It's been causing
4 weeks of problems including deadlocks and instant panics.  Note that the
real bugs are likely in the scheduler.
2004-08-01 14:31:45 +00:00
Mark Murray
8ab2f5ecc5 Break out the MI part of the /dev/[k]mem and /dev/io drivers into
their own directory and module, leaving the MD parts in the MD
area (the MD parts _are_ part of the modules). /dev/mem and /dev/io
are now loadable modules, thus taking us one step further towards
a kernel created entirely out of modules. Of course, there is nothing
preventing the kernel from having these statically compiled.
2004-08-01 11:40:54 +00:00
Robert Watson
1a8cfbc450 Pass a thread argument into cpu_critical_{enter,exit}() rather than
dereference curthread.  It is called only from critical_{enter,exit}(),
which already dereferences curthread.  This doesn't seem to affect SMP
performance in my benchmarks, but improves MySQL transaction throughput
by about 1% on UP on my Xeon.

Head nodding:	jhb, bmilekic
2004-07-27 16:41:01 +00:00
David Schultz
479f8d2214 Make FLT_ROUNDS correctly reflect the dynamic rounding mode. 2004-07-19 08:17:25 +00:00
Marcel Moolenaar
37224cd3fc Mega update for the KDB framework: turn DDB into a KDB backend.
Most of the changes are a direct result of adding thread awareness.
Typically, DDB_REGS is gone. All registers are taken from the
trapframe and backtraces use the PCB based contexts. DDB_REGS was
defined to be a trapframe on all platforms anyway.
Thread awareness introduces the following new commands:
	thread X	switch to thread X (where X is the TID),
	show threads	list all threads.

The backtrace code has been made more flexible so that one can
create backtraces for any thread by giving the thread ID as an
argument to trace.

With this change, ia64 has support for breakpoints.
2004-07-10 23:47:20 +00:00
Marcel Moolenaar
6c29a22f1f Update for the KDB framework:
o  s/ddb_on_nmi/kdb_on_nmi/g
o  Rename sysctl machdep.ddb_on_nmi to machdep.kdb_on_nmi
o  Make debugging support conditional upon KDB instead of DDB.
o  Call kdb_reenter() when kdb_active is non-zero.
o  Call kdb_trap() to enter the debugger when not already active.
o  Update comments accordingly.
o  Remove misplaced prototype of kdb_trap().
2004-07-10 22:11:14 +00:00
Marcel Moolenaar
5a39cbaf69 Implement makectx(). The makectx() function is used by KDB to create
a PCB from a trapframe for purposes of unwinding the stack. The PCB
is used as the thread context and all but the thread that entered the
debugger has a valid PCB.
This function can also be used to create a context for the threads
running on the CPUs that have been stopped when the debugger got
entered. This however is not done at the time of this commit.
2004-07-10 19:56:00 +00:00
Marcel Moolenaar
cbc174356c Introduce the KDB debugger frontend. The frontend provides a framework
in which multiple (presumably different) debugger backends can be
configured and which provides basic services to those backends.
Besides providing services to backends, it also serves as the single
point of contact for any and all code that wants to make use of the
debugger functions, such as entering the debugger or handling of the
alternate break sequence. For this purpose, the frontend has been
made non-optional.
All debugger requests are forwarded or handed over to the current
backend, if applicable. Selection of the current backend is done by
the debug.kdb.current sysctl. A list of configured backends can be
obtained with the debug.kdb.available sysctl. One can enter the
debugger by writing to the debug.kdb.enter sysctl.
2004-07-10 18:40:12 +00:00
Marcel Moolenaar
72d44f31a6 Introduce the GDB debugger backend for the new KDB framework. The
backend improves over the old GDB support in the following ways:
o  Unified implementation with minimal MD code.
o  A simple interface for devices to register themselves as debug
   ports, ala consoles.
o  Compression by using run-length encoding.
o  Implements GDB threading support.
2004-07-10 17:47:22 +00:00
John Baldwin
0c0b25ae91 Implement preemption of kernel threads natively in the scheduler rather
than as one-off hacks in various other parts of the kernel:
- Add a function maybe_preempt() that is called from sched_add() to
  determine if a thread about to be added to a run queue should be
  preempted to directly.  If it is not safe to preempt or if the new
  thread does not have a high enough priority, then the function returns
  false and sched_add() adds the thread to the run queue.  If the thread
  should be preempted to but the current thread is in a nested critical
  section, then the flag TDF_OWEPREEMPT is set and the thread is added
  to the run queue.  Otherwise, mi_switch() is called immediately and the
  thread is never added to the run queue since it is switch to directly.
  When exiting an outermost critical section, if TDF_OWEPREEMPT is set,
  then clear it and call mi_switch() to perform the deferred preemption.
- Remove explicit preemption from ithread_schedule() as calling
  setrunqueue() now does all the correct work.  This also removes the
  do_switch argument from ithread_schedule().
- Do not use the manual preemption code in mtx_unlock if the architecture
  supports native preemption.
- Don't call mi_switch() in a loop during shutdown to give ithreads a
  chance to run if the architecture supports native preemption since
  the ithreads will just preempt DELAY().
- Don't call mi_switch() from the page zeroing idle thread for
  architectures that support native preemption as it is unnecessary.
- Native preemption is enabled on the same archs that supported ithread
  preemption, namely alpha, i386, and amd64.

This change should largely be a NOP for the default case as committed
except that we will do fewer context switches in a few cases and will
avoid the run queues completely when preempting.

Approved by:	scottl (with his re@ hat)
2004-07-02 20:21:44 +00:00
Peter Wemm
654bd0e802 Reduce the size of pv entries by 15%. This saves 1MB of KVA for mapping
pv entries per 1GB of user virtual memory.  (eg: if we had 1GB file was
mmaped into 30 processes, that would theoretically reduce the KVA demand by
30MB for pv entries.  In reality though, we limit pv entries so we don't
have that many at once.)

We used to store the vm_page_t for the page table page.  But we recently
had the pa of the ptp, or can calculate it fairly quickly.  If we wanted
to avoid the shift/mask operation in pmap_pde(), we could recover the
pa but that means we have to store it for a while.

This does not measurably change performance.

Suggested by:  alc
Tested by:  alc
2004-06-29 15:57:05 +00:00
Warner Losh
dc7949f45f bde points out that this can't do anything useful. The full patch has
other parts that I can't locat at the moment, so back it out until I can.
2004-06-28 05:37:22 +00:00
Warner Losh
f465e257e2 When opening /dev/io, preserve iopl properly. Otherwise, if you open
/dev/io multiple times, the first close remove the privs.
2004-06-28 03:16:32 +00:00
Warner Losh
cb490814b9 remove needless blankline 2004-06-28 03:08:17 +00:00
John Baldwin
96d3b93753 Various cleanups in support of a future ioapic_config_intr() function:
- Allow ioapic_set_{nmi,smi,extint}() to be called multiple times on the
  same pin so long as the pin's mode is the same as the mode being
  requested.
- Add a notion of bus type for the interrupt associated with interrupt pin.
  This is needed so that we can force all EISA interrupts to be active high
  in the forthcoming ioapic_config_intr().
- Fix a bug for EISA systems that didn't remap IRQs.  This would have broken
  EISA systems that tried to disable mixed mode for IRQ 0.
2004-06-23 15:29:20 +00:00
Bruce Evans
4c5f10a672 Backed out previous commit. Blind substitution of dev_t by `struct cdev *'
was just wrong here because the dev_t's are user dev_t's.
2004-06-20 03:52:50 +00:00
Bruce Evans
4df7435a78 Include <sys/_lock.h>'s prerequisite <sys/queue.h> before including the
former, not after.
2004-06-20 00:33:14 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
Alan Cox
4d831945a7 MFamd64
Introduce pmap locking to many of the pmap functions.
2004-06-16 07:03:15 +00:00
Alan Cox
8559e0a291 - Remove an unused declaration.
- Move a definition inside the scope of a #ifdef _KERNEL.
2004-06-13 03:44:11 +00:00
John Baldwin
bad4ce7d91 - Use the correct devclass name ("acpi" vs "ACPI") to detect if acpi0 is
present and thus that the PnPBIOS probe should be skipped instead of
  having ACPI zero out the PnPBIOStable pointer.
- Make the PnPBIOStable pointer static to i386/i386/bios.c now that that is
  the only place it is used.
2004-06-10 20:43:04 +00:00
John Baldwin
092a5c4530 Remove atdevbase and replace it's remaining uses with direct references to
KERNBASE instead.
2004-06-10 20:31:00 +00:00
Poul-Henning Kamp
79005bbdbe Add new bios_string() which will hunt for a string inside a given range
of the BIOS.  This can be used for finding arbitrary magic in the BIOS
in order to recognize particular platforms.
2004-06-03 22:36:24 +00:00
Poul-Henning Kamp
02d12d9352 The NatSemi (now AMD) Geode SC1100 needs special treatment here and there
because it is an embedded gadget.  Give it it's own value for the "cpu"
variable and add code to reset it lacking a keyboard controller.
2004-06-03 21:14:53 +00:00
Poul-Henning Kamp
a041b840d2 struct cpu_nameclass is a private to identcpu.c, move it there. 2004-05-30 15:16:07 +00:00
Bruce Evans
e77c22bf45 Moved i386 asms to an i386 header. The asms are for calibration of
high resolution kernel profiling (options GUPROF.  "U" in GUPROF stands
for microseconds resolution, but the resolution is now smaller than 1
nanosecond on multi-GHz machines and the accuracy is heading towards
1 nanosecond too).  Arches that support GUPROF must now provide certain
macros for the calibration.  GUPROF is now only supported for i386's,
so the absence of the new macros for other arches doesn't break anything
that wasn't already broken.  amd64's have uncommitted support for
GUPROF, and sparc64's have support that seems to be complete except
here (there was an #error for non-i386 cases; now there are undefined
macros).

Changed the asms a little:
- declare them as __volatile.  They must not be moved, and exporting a
  label across asms is technically incorrect, so try harder to stop gcc
  moving them.
- don't put the non-clobbered register "bx" in the clobber list.  The
  clobber lists are still more conservative than necessary.
- drop the non-support for gcc-1.  It just gave a better error message,
  and this is not useful since compiling with gcc-1 would cause thousands
  of worse error messages.
- drop the support for aout.
2004-05-20 16:12:19 +00:00
Bruce Evans
19b5915afa Fixed some style bugs (mainly misalignment of backslashes). 2004-05-19 16:04:26 +00:00
Bruce Evans
b2321e7cdb 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
Stefan Farfeleder
b1aa0ba527 <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
John Baldwin
eb8943b13e Rework the APIC mixed mode support a bit:
- Require the APIC enumerators to explicitly enable mixed mode by calling
  ioapic_enable_mixed_mode().  Calling this function tells the apic driver
  that the PC-AT 8259A PICs are present and routable through the first I/O
  APIC via an ExtINT pin.  The mptable enumerator always calls this
  function for now.  The MADT enumerator only enables mixed mode if the
  PC-AT compatability flag is set in the MADT header.
- Allow mixed mode to be enabled or disabled via a 'hw.apic.mixed_mode'
  tunable.  By default this tunable is set to 1 (true).  The kernel option
  NO_MIXED_MODE changes the default to 0 to preserve existing behavior, but
  adding 'hw.apic.mixed_mode=0' to loader.conf achieves the same effect.
- Only use mixed mode to route IRQ 0 if it is both enabled by the APIC
  enumerator and activated by the loader tunable.  Note that both
  conditions must be true, so if the APIC enumerator does not enable mixed
  mode, then you can't set the tunable to try to override the enumerator.
2004-05-10 18:49:58 +00:00
Nate Lawson
65a7c90189 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
John Baldwin
7a64d8d74c - Create a pir0 psuedo device as a child of legacy0 if we attach a legacy
host-PCI bridge device and find a valid $PIR.
- Make pci_pir_parse() private to pci_pir.c and have pir0's attach routine
  call it instead of having legacy_pcib_attach() call it.
- Implement suspend/resume support for the $PIR by giving pir0 a resume
  method that calls the BIOS to reroute each link that was already routed
  before the machine was suspended.
- Dump the state of the routed flag in the links display code.
- If a link's IRQ is set by a tunable, then force that link to be re-routed
  the first time it is used.
- Move the 'Found $PIR' message under bootverbose as the pir0 description
  line lists the number of entries already.  The pir0 line also only shows
  up if we are actually using the $PIR which is a bonus.
- Use BUS_CONFIG_INTR() to ensure that any IRQs used by a PCI link are
  set to level/low trigger/polarity.
2004-05-04 21:17:52 +00:00
John Baldwin
4b1df14c60 - Add a new pic method pic_config_intr() to set the trigger mode and
polarity for a specified IRQ.  The intr_config_intr() function wraps
  this pic method hiding the IRQ to interrupt source lookup.
- Add a config_intr() method to the atpic(4) driver that reconfigures
  the interrupt using the ELCR if possible and returns an error otherwise.
- Add a config_intr() method to the apic(4) driver that just logs any
  requests that would change the existing programming under bootverbose.
  Currently, the only changes the apic(4) driver receives are due to bugs
  in the acpi(4) driver and its handling of link devices, hence the reason
  for such requests currently being ignored.
- Have the nexus(4) driver on i386 implement the bus_config_intr() function
  by calling intr_config_intr().
2004-05-04 21:02:56 +00:00
John Baldwin
c2ce35977e - Change the APIC code to mostly use the recently added intr_trigger
and intr_polarity enums for passing around interrupt trigger modes and
  polarity rather than using the magic numbers 0 for level/low and 1 for
  edge/high.
- Convert the mptable parsing code to use the new ELCR wrapper code rather
  than reading the ELCR directly.  Also, use the ELCR settings to control
  both the trigger and polarity of EISA IRQs instead of just the trigger
  mode.
- Rework the MADT's handling of the ACPI SCI again:
  - If no override entry for the SCI exists at all, use level/low trigger
    instead of the default edge/high used for ISA IRQs.
  - For the ACPI SCI, use level/low values for conforming trigger and
    polarity rather than the edge/high values we use for all other ISA
    IRQs.
  - Rework the tunables available to override the MADT.  The
    hw.acpi.force_sci_lo tunable is no longer supported.  Instead, there
    are now two tunables that can independently override the trigger mode
    and/or polarity of the SCI.  The hw.acpi.sci.trigger tunable can be
    set to either "edge" or "level", and the hw.acpi.sci.polarity tunable
    can be set to either "high" or "low".  To simulate hw.acpi.force_sci_lo,
    set hw.acpi.sci.trigger to "level" and hw.acpi.sci.polarity to "low".
    If you are having problems with ACPI either causing an interrupt storm
    or not working at all (e.g., the power button doesn't turn invoke a
    shutdown -p now), you can try tweaking these two tunables to find the
    combination that works.
2004-05-04 20:39:24 +00:00
John Baldwin
030b156bf0 Add a simple mini-driver for the ELCR register. Originally, the ELCR
register controlled the trigger mode and polarity of EISA interrupts.
However, it appears that most (all?) PCI systems use the ELCR to manage
the trigger mode and polarity of ISA interrupts as well since ISA IRQs used
to route PCI interrupts need to be level triggered with active low
polarity.  We check to see if the ELCR exists by sanity checking the value
we get back ensuring that IRQS 0 (8254), 1 (atkbd), 2 (the link from the
slave PIC), and 8 (RTC) are all clear indicating edge trigger and active
high polarity.

This mini-driver will be used by the atpic driver to manage the trigger and
polarity of ISA IRQs.  Also, the mptable parsing code will use this mini
driver rather than examining the ELCR directly.
2004-05-04 20:07:46 +00:00
Yoshihiro Takahashi
7dca3f1761 Increase BUS_SPACE_IAT_MAXSIZE to 33 for the ed driver. 2004-05-04 06:38:13 +00:00
John Baldwin
be16306ad3 Make the legacy_pcib_attach() function static. 2004-05-03 14:49:43 +00:00
John Baldwin
5cf1e92001 Belatedly remove a file from the earlier apic code that is no longer used. 2004-04-27 19:37:17 +00:00
David Schultz
be3930682a 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
Alan Cox
2c38d78e41 - is_physical_memory()'s parameter, which is a physical address, should be
a vm_paddr_t not a vm_offset_t.
2004-04-11 04:26:58 +00:00
Alan Cox
0af0eeacb6 - pmap_kenter_temporary()'s first parameter, which is a physical address,
should be declared as vm_paddr_t not vm_offset_t.
2004-04-10 23:28:49 +00:00
Alan Cox
b14d6acced - 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
Warner Losh
f36cfd49ad 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
Alan Cox
c8607538c8 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
Marcel Moolenaar
60aa1737df Move the definition of rss() from db_interface.c to cpufunc.h where
it belongs. Change the implementation to match those of rfs() and
rgs() for consistency and irrespective of whether the original was
more correct or not (technically speaking).
2004-04-03 22:23:36 +00:00
Marcel Moolenaar
a36bdc0606 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
Warner Losh
e9dd5834c6 The gsc driver uses the old COMPAT_ISA api. Retire it so we can
retire the COMPAT_ISA shims.  If someone were to redo this driver with
the new APIs and test it, it can return.
2004-03-14 22:42:54 +00:00
Warner Losh
1cf01aa3f4 The spigot driver uses the old COMPAT_ISA interface. Retire it since
that's going away soon.  Should someone reimplement it using modern
APIs and can test the driver, it can return.
2004-03-14 22:31:49 +00:00
Warner Losh
a0988ce1a8 stl and stli use the old COMPAT_ISA api. slt also uses the really old
COMPAT_PCI api.  This API is going away, so this driver is going away
also.

If users are interested in updating this, please contact the author
since he has some preliminary work to move this to newer APIs.
2004-03-14 06:48:36 +00:00
Warner Losh
27ecf90592 remove the ioctl files from the asc, ctx and wt drivers just removed 2004-03-14 05:40:50 +00:00
Peter Wemm
73f3495386 Move the non-MD machine/dvcfg.h and machine/physio_proc.h to a common
MI area before they proliferate more.
2004-03-13 19:46:27 +00:00
Tom Rhodes
a122cca953 These are changes to allow to use the Intel C/C++ compiler (lang/icc)
to build the kernel. It doesn't affect the operation if gcc.

Most of the changes are just adding __INTEL_COMPILER to #ifdef's, as
icc v8 may define __GNUC__ some parts may look strange but are
necessary.

Additional changes:
 - in_cksum.[ch]:
   * use a generic C version instead of the assembly version in the !gcc
     case (ASM code breaks with the optimizations icc does)
     -> no bad checksums with an icc compiled kernel
     Help from:		andre, grehan, das
     Stolen from: 	alpha version via ppc version
     The entire checksum code should IMHO be replaced with the DragonFly
     version (because it isn't guaranteed future revisions of gcc will
     include similar optimizations) as in:
        ---snip---
          Revision  Changes    Path
          1.12      +1 -0      src/sys/conf/files.i386
          1.4       +142 -558  src/sys/i386/i386/in_cksum.c
          1.5       +33 -69    src/sys/i386/include/in_cksum.h
          1.5       +2 -0      src/sys/netinet/igmp.c
          1.6       +0 -1      src/sys/netinet/in.h
          1.6       +2 -0      src/sys/netinet/ip_icmp.c

          1.4       +3 -4      src/contrib/ipfilter/ip_compat.h
          1.3       +1 -2      src/sbin/natd/icmp.c
          1.4       +0 -1      src/sbin/natd/natd.c
          1.48      +1 -0      src/sys/conf/files
          1.2       +0 -1      src/sys/conf/files.amd64
          1.13      +0 -1      src/sys/conf/files.i386
          1.5       +0 -1      src/sys/conf/files.pc98
          1.7       +1 -1      src/sys/contrib/ipfilter/netinet/fil.c
          1.10      +2 -3      src/sys/contrib/ipfilter/netinet/ip_compat.h
          1.10      +1 -1      src/sys/contrib/ipfilter/netinet/ip_fil.c
          1.7       +1 -1      src/sys/dev/netif/txp/if_txp.c
          1.7       +1 -1      src/sys/net/ip_mroute/ip_mroute.c
          1.7       +1 -2      src/sys/net/ipfw/ip_fw2.c
          1.6       +1 -2      src/sys/netinet/igmp.c
          1.4       +158 -116  src/sys/netinet/in_cksum.c
          1.6       +1 -1      src/sys/netinet/ip_gre.c
          1.7       +1 -2      src/sys/netinet/ip_icmp.c
          1.10      +1 -1      src/sys/netinet/ip_input.c
          1.10      +1 -2      src/sys/netinet/ip_output.c
          1.13      +1 -2      src/sys/netinet/tcp_input.c
          1.9       +1 -2      src/sys/netinet/tcp_output.c
          1.10      +1 -1      src/sys/netinet/tcp_subr.c
          1.10      +1 -1      src/sys/netinet/tcp_syncache.c
          1.9       +1 -2      src/sys/netinet/udp_usrreq.c

          1.5       +1 -2      src/sys/netinet6/ipsec.c
          1.5       +1 -2      src/sys/netproto/ipsec/ipsec.c
          1.5       +1 -1      src/sys/netproto/ipsec/ipsec_input.c
          1.4       +1 -2      src/sys/netproto/ipsec/ipsec_output.c

          and finally remove
            sys/i386/i386        in_cksum.c
            sys/i386/include     in_cksum.h
        ---snip---
 - endian.h:
   * DTRT in C++ mode
 - quad.h:
   * we don't use gcc v1 anymore, remove support for it
   Suggested by:	bde (long ago)
 - assym.h:
   * avoid zero-length arrays (remove dependency on a gcc specific
     feature)
     This change changes the contents of the object file, but as it's
     only used to generate some values for a header, and the generator
     knows how to handle this, there's no impact in the gcc case.
   Explained by:	bde
   Submitted by:	Marius Strobl <marius@alchemy.franken.de>
 - aicasm.c:
   * minor change to teach it about the way icc spells "-nostdinc"
   Not approved by:	gibbs (no reply to my mail)
 - bump __FreeBSD_version (lang/icc needs to know about the changes)

Incarnations of this patch survive gcc compiles since a loooong time,
I use it on my desktop. An icc compiled kernel works since Nov. 2003
(exceptions: snd_* if used as modules), it survives a build of the
entire ports collection with icc.

Parts of this commit contains suggestions or submissions from
Marius Strobl <marius@alchemy.franken.de>.

Reviewed by:	-arch
Submitted by:	netchild
2004-03-12 21:45:33 +00:00
Bruce Evans
a67ef0a77a Don't implement anything in the ffs family in <machine/cpufunc.h>
in the non-_KERNEL case.  This "fixes" applications that include
this "kernel-only" header and also include <strings.h> (or get
<strings.h> via the default _BSD_VISIBLE pollution in <string.h>.
In C++ there was a fatal error: the declaration specifies C linkage
but the implementation gives C++ linkage.  In C there was only a
static/extern mismatch if the headers were included in a certain order
order, and a partially redundant declaration for all include orders;
gcc emits incomplete or wrong diagnostics for these, but only for
compiling with -Wsystem-headers and certain other warning options, so
the problem was usually not seen for C.

Ports breakage reported by:	kris
2004-03-11 13:38:54 +00:00
Alan Cox
925d2fedf5 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
Bruce Evans
39f0cfa27b Fixed insertion sort errors in prototype list. 2004-03-05 15:30:40 +00:00
Bruce Evans
83f1e7f9f4 Removed garbage:
- completely unused things
- all of rev.1.102 (C++ support).  <sys/cdefs.h> is included by the
  prerequisite <sys/types.h>.  __BEGIN_DECLS/__END_DECLS has no effect
  (except possibly if undefined behaviour is invoked using a hack like
  defining away __inline) since this header doesn't really support any
  extern functions.
2004-03-05 15:22:05 +00:00
Lukas Ertl
1bcf24ee9d 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
John Baldwin
77fa00fa7c Switch to using the new $PIR interrupt routing code and remove the old
code.  The pci_cfgreg.c file now just controls reading/writing PCI config
registers.
2004-02-18 22:41:53 +00:00
Maxim Sobolev
4168deefd6 Add new CPU_ENABLE_TCC option, from NOTES:
CPU_ENABLE_TCC enables Thermal Control Circuitry (TCC) found in some
Pentium(tm) 4 and (possibly) later CPUs. When enabled and detected,
TCC allows to restrict power consumption by using machdep.cpuperf*
sysctls. This operates independently of SpeedStep and is useful on
systems where other mechanisms such as apm(4) or acpi(4) don't work.

Given the fact that many, even modern, notebooks don't work properly
with Intel ACPI, this is indeed very useful option for notebook owners.

Obtained from:  OpenBSD
MFC after:      2 weeks
2004-01-18 21:18:00 +00:00
Jacques Vidrine
e4dc8baa84 Provide sysarch(2) prototypes in the MD sysarch.h headers. While I'm
at it, use the ANSI C generic pointer type for the second argument,
thus matching the documentation.

Remove the now extraneous (and now conflicting) function declarations
in various libc sources.  Remove now unnecessary casts.

Reviewed by:	bde
2004-01-09 16:52:09 +00:00
Jacques Vidrine
1d0342a3d5 Use ANSI C function definition for _mcount' and remove static'
prototype from header file.

Discussed with:	bde, maybe one year ago
2004-01-06 18:49:54 +00:00
Poul-Henning Kamp
883bd55abd Add struct definition of the Elan MMCR registers (from jb@)
Put a CTASSERT() on the size of the struct.

Use the struct where it is easy to do so in elan_mmcr.c

Add the Elan specific hardware reset code (also from jb@).
2004-01-05 12:00:59 +00:00
Peter Wemm
c15e347e22 GC the unused <machine/kse.h> file. 2003-12-24 00:51:30 +00:00
Brian Feldman
4d33ee7c6a Hey, how about we NOT make modules crash 486s? 2003-12-17 00:51:47 +00:00
Jeff Roberson
59f3a8e626 - Add the mp_topology() function to mp_machdep.c. This function builds up
the smp_topology structure to reflect the layout of HTT enabled machines.
 - Add a prototype for mp_topology() in smp.h
2003-12-11 03:48:31 +00:00
John Baldwin
d7944232dd Delete old and unused APIC_IRQ defines. 2003-12-10 21:33:07 +00:00
David E. O'Brien
70005bdb38 Add just enough of i386/include/pcvt_ioctl.h to amd64/include/pcvt_ioctl.h
such that 'ispcvt' can build.  Unforunately 'ispcvt' is needed in order for
/etc/rc.d/syscons to run.  This fixes the bug where I could not get my
keymap effective at boot.
2003-12-10 02:49:17 +00:00
David E. O'Brien
a5b5101f5e Move the bktr(4) <arch>/include/ioctl_{bt848,meteor}.h files to dev/bktr
as these ioctl's aren't MD.  This also means they are installed in
/usr/include/dev/bktr now.  Also provide compatability wrappers for
where these headers lived in 4.x.
2003-12-08 07:22:42 +00:00
Alan Cox
a5819cb5b5 Don't remove the virtual-to-physical mapping when an sf_buf is freed.
Instead, allow the mapping to persist, but add the sf_buf to a free list.
If a later sendfile(2) or zero-copy send resends the same physical page,
perhaps with the same or different contents, then the mapping overhead is
avoided and the sf_buf is simply removed from the free list.

In other words, the i386 sf_buf implementation now behaves as a cache of
virtual-to-physical translations using an LRU replacement policy on
inactive sf_bufs.  This is similar in concept to a part of
http://www.cs.princeton.edu/~yruan/debox/ patch, but much simpler in
implementation.  Note: none of this is required on alpha, amd64, or ia64.
They now use their direct virtual-to-physical mapping to avoid any
emphemeral mapping overheads in their sf_buf implementations.
2003-12-07 22:49:25 +00:00
Warner Losh
05a463a03d Ooops. These are still used by the bktr driver. David O'Brien has
plans for dealing, but I'll let him deal.

Pointy hat to: imp@
2003-12-07 06:37:32 +00:00
Warner Losh
65b4a1b917 Remote meteor driver. It hasn't compiled in over 3 years. If someone
makes it compile again, and can test it, we can restore the driver to
the tree.
2003-12-07 04:41:11 +00:00
Warner Losh
29aad12185 File forgotten in the cx shuffle.
Pointed out by: Roman Kurakin
Approved by: re@ <scottl> (under go ahead and commit new cx approval)
2003-12-05 06:52:05 +00:00
Warner Losh
88afb90f3c Updated cx driver commit part 1: bring in the new kernel driver.
This is the vastly updated cx drvier from Roman Kurakin <rik@cronyx.ru>
who has been patiently waiting for this update for sometime.

The driver is mostly a rewrite from the version we have in the tree.
While some similarities remain, losing the little history that the old
driver has is not a big loss, and the re@ felt it was easier this way (less
error prone).

The userland parts of this update will be committed shortly.

The driver is not connected to the build yet.  I want to make sure I
don't break any platform at any time, so I want to test that with
these files in the tree before I continue (on the off chance I'm
forgetting a file).

I changed the DEBUG macro to CX_DEBUG from the code that was submitted
(to not break when we go to building with opt_global.h after the
release), as well adding $FreeBSD$.

Submitted by: Roman Kurakin
Approved by: re@ <scottl>
2003-12-03 07:29:38 +00:00
Peter Wemm
c287f723c4 MFamd64: use a less compiler-intensive MD implementation of 'curthread'
so that the compiler doesn't have to do so much work.

Approved by:  re (jhb)
2003-11-20 23:23:22 +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
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
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
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
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
69487322d8 Fix a typo. 2003-11-13 16:41:07 +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
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
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
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
John Baldwin
8fd6ac3afa Remove old APIC header. 2003-11-03 23:10:34 +00:00
John Baldwin
73adfd0ca0 Catch up to interrupt code changes. 2003-11-03 22:37:28 +00:00
John Baldwin
147ad8d5ad New i386 SMP code:
- The MP code no longer knows anything specific about an MP Table.
  Instead, the local APIC code adds CPUs via the cpu_add() function when
  a local APIC is enumerated by an APIC enumerator.
- Don't divide the argument to mp_bootaddress() by 1024 just so that we
  can turn around and mulitply it by 1024 again.
- We no longer panic if SMP is enabled but we are booted on a UP machine.
- init_secondary(), the asm code between init_secondary() and ap_init()
  in mpboot.s and ap_init() have all been merged together in C into
  init_secondary().
- We now use the cpuid feature bits to determine if we should enable
  PSE, PGE, or VME on each AP.
- Due to the change in the implementation of critical sections, acquire
  the SMP TLB mutex around a slightly larger chunk of code for TLB
  shootdowns.
- Remove some of the debug code from the original SMP implementation
  that is no longer used or no longer applies to the new APIC code.
- Use a temporary hack to disable the ACPI module until the SMP code has
  been further reorganized to allow ACPI to work as a module again.
- Add a DDB command to dump the interesting contents of the IDT.
2003-11-03 22:32:04 +00:00
John Baldwin
8f8914ad98 Add the MP Table APIC enumerator. This code uses the BIOS MP Table to
enumerate I/O APICs as well as local APICs.  It also provides Host-PCI
and PCI-PCI bridge drivers to use the MP Table to route PCI interrupts.
2003-11-03 22:12:37 +00:00
John Baldwin
6f92bdd0c1 New APIC support code:
- The apic interrupt entry points have been rewritten so that each entry
  point can serve 32 different vectors.  When the entry is executed, it
  uses one of the 32-bit ISR registers to determine which vector in its
  assigned range was triggered.  Thus, the apic code can support 159
  different interrupt vectors with only 5 entry points.
- We now always to disable the local APIC to work around an errata in
  certain PPros and then re-enable it again if we decide to use the APICs
  to route interrupts.
- We no longer map IO APICs or local APICs using special page table
  entries.  Instead, we just use pmap_mapdev().  We also no longer
  export the virtual address of the local APIC as a global symbol to
  the rest of the system, but only in local_apic.c.  To aid this, the
  APIC ID of each CPU is exported as a per-CPU variable.
- Interrupt sources are provided for each intpin on each IO APIC.
  Currently, each source is given a unique interrupt vector meaning that
  PCI interrupts are not shared on most machines with an I/O APIC.
  That mapping for interrupt sources to interrupt vectors is up to the
  APIC enumerator driver however.
- We no longer probe to see if we need to use mixed mode to route IRQ 0,
  instead we always use mixed mode to route IRQ 0 for now.  This can be
  disabled via the 'NO_MIXED_MODE' kernel option.
- The npx(4) driver now always probes to see if a built-in FPU is present
  since this test can now be performed with the new APIC code.  However,
  an SMP kernel will panic if there is more than one CPU and a built-in
  FPU is not found.
- PCI interrupts are now properly routed when using APICs to route
  interrupts, so remove the hack to psuedo-route interrupts when the
  intpin register was read.
- The apic.h header was moved to apicreg.h and a new apicvar.h header
  that declares the APIs used by the new APIC code was added.
2003-11-03 21:53:38 +00:00
John Baldwin
a8084030ad Add a per-thread variable for saving the state of eflags to support the
critical section code.
2003-11-03 21:30:00 +00:00
John Baldwin
ecee5704ed New device interrupt code. This defines an interrupt source abstraction
that provides methods via a PIC driver to do things like mask a source,
unmask a source, enable it when the first interrupt handler is added, etc.
The interrupt code provides a table of interrupt sources indexed by IRQ
numbers, or vectors.  These vectors are what new-bus uses for its IRQ
resources and for bus_setup_intr()/bus_teardown_intr().  The interrupt
code then maps that vector a given interrupt source object.  When an
interrupt comes in, the low-level interrupt code looks up the interrupt
source for the source that triggered the interrupt and hands it off to
this code to execute the appropriate handlers.

By having an interrupt source abstraction, this allows us to have different
types of interrupt source providers within the shared IRQ address space.
For example, IRQ 0 may map to pin 0 of the master 8259A PIC, IRQs 1
through 60 may map to pins on various I/O APICs, and IRQs 120 through
128 may map to MSI interrupts for various PCI devices.
2003-11-03 21:25:52 +00:00
John Baldwin
5b02e68554 - Always use 256 IDT entries since it is now a runtime decison as to how
many entries we use.
- Add a constant IDT_IO_INTS for the first IDT entry used for device
  interrupts.
2003-11-03 21:12:04 +00:00
John Baldwin
5eb39b8d24 Define IDTVEC() and TRAP() assembly macros so that they can be shared
with several files.
2003-11-03 21:09:17 +00:00
John Baldwin
eb2a2211ff Revert the critical section implementation to disable interrupts via
cli/sti now that we support many more than 32 interrupt sources.
2003-11-03 21:06:54 +00:00
John Baldwin
63239aa581 Always export r_gdt and r_idt and give them extern declarations in
machine/segments.h.
2003-10-30 21:42:17 +00:00
John Baldwin
07930cce05 A few whitespace and comment tweaks. 2003-10-24 21:02:26 +00:00
Bruce M Simpson
2bc7dd5661 Move pmap_resident_count() from the MD pmap.h to the MI pmap.h.
Add a definition of pmap_wired_count().
Add a definition of vmspace_wired_count().

Reviewed by:	truckman
Discussed with:	peter
2003-10-06 01:47:12 +00:00
Peter Wemm
6ccf265bb0 Commit Bosko's patch to clean up the PSE/PG_G initialization to and
avoid problems with some Pentium 4 cpus and some older PPro/Pentium2
cpus.  There are several problems, some documented in Intel errata.
This patch:
1) moves the kernel to the second page in the PSE case.  There is an
errata that says that you Must Not point a 4MB page at physical
address zero on older cpus.  We avoided bugs here due to sheer luck.
2) sets up PSE page tables right from the start in locore, rather than
trying to switch from 4K to 4M (or 2M) pages part way through the boot
sequence at the same time that we're messing with PG_G.

For some reason, the pmap work over the last 18 months seems to tickle
the problems, and the PAE infrastructure changes disturb the cpu
bugs even more.

A couple of people have reported a problem with APM bios calls during
boot.  I'll work with people to get this resolved.

Obtained from:	bmilekic
2003-10-01 23:46:08 +00:00
Jeff Roberson
977f9ab515 - Add ss2_pagezero() for zeroing pages using the movnti instruction. This
instruction is enabled with SSE2 but does not use SSE registers.  It is a
   "non-temporal" move which bypasses the cache and does not dirty lines.
2003-10-01 05:25:27 +00:00
Jeff Roberson
fa3f9daae5 - On my Pentium4-M laptop, invalpg takes ~1100 cycles if the page is found in
the TLB and ~1600 if it is not.  Therefore, it is more effecient to
   invalidate the TLB after operations that use CMAP rather than before.
 - So that the tlb is invalidated prior to switching off of a processor, we
   must change the switchin functions to switchout functions.
 - Remove td_switchout from the thread and move it to the x86 pcb.
 - Move the code that calls switchout into swtch.s.  These changes make this
   optimization truely x86 specific.
2003-09-30 08:11:36 +00:00
Alan Cox
f3fd831cdd - Eliminate the pte object.
- Use kmem_alloc_nofault() rather than kmem_alloc_pageable() to allocate
   KVA space for the page directory page(s).  Submitted by: tegge
2003-09-25 02:51:06 +00:00
Peter Wemm
c460ac3a00 Add sysentvec->sv_fixlimits() hook so that we can catch cases on 64 bit
systems where the data/stack/etc limits are too big for a 32 bit process.

Move the 5 or so identical instances of ELF_RTLD_ADDR() into imgact_elf.c.

Supply an ia32_fixlimits function.  Export the clip/default values to
sysctl under the compat.ia32 heirarchy.

Have mmap(0, ...) respect the current p->p_limits[RLIMIT_DATA].rlim_max
value rather than the sysctl tweakable variable.  This allows mmap to
place mappings at sensible locations when limits have been reduced.

Have the imgact_elf.c ld-elf.so.1 placement algorithm use the same
method as mmap(0, ...) now does.

Note that we cannot remove all references to the sysctl tweakable
maxdsiz etc variables because /etc/login.conf specifies a datasize
of 'unlimited'.  And that causes exec etc to fail since it can no
longer find space to mmap things.
2003-09-25 01:10:26 +00:00
Warner Losh
00dc18b5a8 Per TRB vote: restore the aquire_timer0 and associated goo. This will
be gone in FreeBSD 6, so put BURN_BRIDGES around it.  The TRB also
felt that if something better comes along sooner, it can be used to
replace this code.

Delayed by: BSDcon and subsequent disk crash.
2003-09-24 15:33:33 +00:00
Yoshihiro Takahashi
33e38a2cc8 Implement the bus_space_map() function to allocate resources and initialize
a bus_handle, but currently it does only initializing a bus_handle.
2003-09-23 08:22:34 +00:00
Peter Wemm
795a3f5279 Microoptimization to allow the compiler to evaluate ntohl() etc on
known constants at compile time rather than at run time.  We have a number
of nasty hacks around the place to cache ntohl() of constants (eg: nfs).
This change allows the compiler to compile-time evaluate ntohl(1) as
0x01000000 rather than having to emit assembler code to do it.  This
has other smaller flow-on effects because the compiler can see that
ntohl(constant) itself has a constant value now and can propagate the
compile time evaluation.

Obtained from:  Ideas from NetBSD and Linux, and some code from NetBSD
2003-09-22 21:46:47 +00:00
John Baldwin
eb975edd06 Fix a busted constant related to PCI configuration acess method #1. The
reserved bits in the port that must be zero are 24:30, not 20:30.  Bits
16:23 are used to set the bus number.  This meant that when we tested for
config mechanism #1, if the previous PCI configuration transaction sent
used a bus number greater than 15, one of the bits in 20:23 would be
non-zero and we would fail to use config mechanism #1 and thus fail to see
that PCI existed on the machine at all.

Obtained from:	Shanley's PCI System Architecture book
Tested by:	des
Proxied through:	njl
2003-09-18 17:00:03 +00:00
John Baldwin
a547af297d Remove an XXX comment by using the per CPU mask added after this comment
was added.
2003-09-10 01:36:48 +00:00
John Baldwin
4c93af3788 Add a acpi_SetDefaultIntrModel() method to allow drivers to set the
interrupt model prior to the acpi0 device being probed and attached.
2003-09-10 01:14:42 +00:00
John Baldwin
f03cb48d41 Fix a typo. 2003-09-10 01:11:58 +00:00
John Baldwin
0e85b19ba9 Add constants for entries in the IDT and use those instead of magic
numbers.
2003-09-10 01:07:04 +00:00
Alexander Kabaev
1d49585050 Standardize idempotentcy ifdefs. Consistently use _MACHINE_VARARGS_H_
symbol.
2003-09-01 03:01:45 +00:00
David E. O'Brien
a7b60ab26e Fix copyright comment & FBSDID style nits.
Requested by:	bde
2003-08-25 09:48:48 +00:00
Marcel Moolenaar
26502503e5 Further cleanup <machine/cpu.h> and <machine/md_var.h>: move the MI
prototypes of cpu_halt(), cpu_reset() and swi_vm() from md_var.h to
cpu.h. This affects db_command.c and kern_shutdown.c.

ia64: move all MD prototypes from cpu.h to md_var.h. This affects
madt.c, interrupt.c and mp_machdep.c. Remove is_physical_memory().
It's not used (vm_machdep.c).

alpha: the MD prototypes have been left in cpu.h with a comment
that they should be there. Moving them is left for later. It was
expected that the impact would be significant enough to be done in
a seperate commit.

powerpc: MD prototypes left in cpu.h. Comment added.

Suggested by: bde
Tested with: make universe (pc98 incomplete)
2003-08-16 16:57:57 +00:00
Poul-Henning Kamp
8dcee923b5 remove acquire_timer0() and release_timer0() and related stuff. 2003-08-15 15:50:49 +00:00
John Baldwin
6d84ef820f - Add macros describing some new MSR's in the Pentium 4 and some older
MSR's in the original Pentium.
- Add macros describing the bit fields in the APICBASE MSR.
2003-08-15 15:24:23 +00:00
John Baldwin
594dfbc391 - Fix a duplicated typo.
- Add a macro for the logical shift needed to extract an APIC ID from
  either from the local APIC ICR Hi register or the APIC ID registers of
  the local and IO APICs.
2003-08-15 15:23:13 +00:00
Warner Losh
06b4bf3e55 Expand inline the relevant parts of src/COPYRIGHT for Matt Dillon's
copyrighted files.

Approved by: Matt Dillon
2003-08-12 23:24:05 +00:00
Paul Saab
77c39e17fa Halted CPU's should not accumulate time.
Reviewed by:	jhb
2003-08-12 17:01:10 +00:00
Bruce Evans
90630944c8 Backed out previous commit. This restores the warning about pessimized
(short) types for the port arg of inb() (rev.1.56).  The warning started
working for u_short types with gcc-3.3.  The pessimizations exposed
by this been fixed except for the cx and oltr drivers where the breakage
of the warning has been pushed to the drivers.
2003-08-06 18:21:27 +00:00
Poul-Henning Kamp
2fbc275447 Dont initialize a TSC timecounter until we know if it is broken or not. 2003-08-06 15:05:27 +00:00
John Baldwin
912133cbce - GC unused cpu_thread_link().
- Move the enabling of interrupts out of assembly and into C a few
  instructions later at cpu_critical_fork_exit().  This puts more of the
  MD critical section implementation under the MD critical section API
  making it easier to test and develop alternative implementations.
2003-08-04 20:34:25 +00:00
Julian Elischer
5774db75bd Allow foot shooting as Linux emulation needs it.
Also change "Auto mode" to use a "special" value
instead of 0, and define and document it.
I had thought libpthread had already been switched to use auto mode but
it appears that patch hasn't been committed yet.

Discussed with:	 Davidxu
2003-08-04 19:11:56 +00:00
David E. O'Brien
a98a5f06d3 Style sync. 2003-08-03 07:50:19 +00:00
Peter Wemm
f3d3771beb Detour via (void *) to defeat gcc's strict-aliasing warnings when using
-O2 or -Os (such as 'make release').

This commit brought to you by the warning:
  dereferencing type-punned pointer will break strict-aliasing rules
2003-07-30 00:04:58 +00:00
Maxime Henrion
d5afecd068 - Introduce a new busdma flag BUS_DMA_ZERO to request for zero'ed
memory in bus_dmamem_alloc().  This is possible now that
  contigmalloc() supports the M_ZERO flag.
- Remove the locking of Giant around calls to contigmalloc() since
  contigmalloc() now grabs Giant itself.
2003-07-27 13:52:10 +00:00
Poul-Henning Kamp
8b30546120 Stop GCC from whining when people use a 16 bit port number for inb() and outb() 2003-07-23 20:28:23 +00:00
John Baldwin
e47d4f0fc2 Use macros from apic.h to when writing to the ICR to send IPIs to startup
APs rather than magic numbers.

Tested by:	scottl
2003-07-23 19:04:28 +00:00
John Baldwin
55fb372edd Add a new macro APIC_ICRLO_RESV_MASK that contains all of the reserved
fields in the low 32 bits of the local APIC ICR register.  Use this macro
in place of APIC_RESV2_MASK when masking off existing bits from the ICR
when writing to it to send an IPI.

Tested by:	scottl
2003-07-23 18:59:38 +00:00
Peter Wemm
461d4da338 Remove _ARCH_INDIRECT, it was the glue to enable having both hardware
and software versions of the floating point code in libm.  The runtime
selection was done by reading the hw.floatingpoint sysctl via
__get_hw_float().
2003-07-23 04:28:51 +00:00
Peter Wemm
a35b33869d Initiate de-orbit burn for fpu-less operation. 386+387 is still
theoretically supportable, but you'd really be happier with FreeBSD 2.1.8
on it.
2003-07-22 08:11:17 +00:00
Mark Murray
c7b132c974 Protect lint(1) from a #error. 2003-07-10 18:05:02 +00:00
Peter Wemm
e95babf3a8 unifdef -DLAZY_SWITCH and start to tidy up the associated glue. 2003-07-10 01:02:59 +00:00
Scott Long
f6b1c44d1f Mega busdma API commit.
Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg.
Lockfunc allows a driver to provide a function for managing its locking
semantics while using busdma.  At the moment, this is used for the
asynchronous busdma_swi and callback mechanism.  Two lockfunc implementations
are provided: busdma_lock_mutex() performs standard mutex operations on the
mutex that is specified from lockfuncarg.  dftl_lock() is a panic
implementation and is defaulted to when NULL, NULL are passed to
bus_dma_tag_create().  The only time that NULL, NULL should ever be used is
when the driver ensures that bus_dmamap_load() will not be deferred.
Drivers that do not provide their own locking can pass
busdma_lock_mutex,&Giant args in order to preserve the former behaviour.

sparc64 and powerpc do not provide real busdma_swi functions, so this is
largely a noop on those platforms.  The busdma_swi on is64 is not properly
locked yet, so warnings will be emitted on this platform when busdma
callback deferrals happen.

If anyone gets panics or warnings from dflt_lock() being called, please
let me know right away.

Reviewed by:	tmm, gibbs
2003-07-01 15:52:06 +00:00
Jeff Roberson
ab875ef896 - Construct a cpu topology map for Hyper Threading systems so that ULE may
take advantage of them.
2003-06-28 22:07:42 +00:00
Peter Wemm
eabd19726f Tidy up leftover lazy_switch instrumentation that is no longer needed.
This cleans up some #ifdef hell.
2003-06-27 22:39:14 +00:00
Peter Wemm
b50953ccfa Fix the false IPIs on smp when using LAZY_SWITCH caused by pmap_activate()
not releasing the pm_active bit in the old pmap.
2003-06-27 21:50:52 +00:00
Alan Cox
49a2507bd1 Migrate the thread stack management functions from the machine-dependent
to the machine-independent parts of the VM.  At the same time, this
introduces vm object locking for the non-i386 platforms.

Two details:

1. KSTACK_GUARD has been removed in favor of KSTACK_GUARD_PAGES.  The
different machine-dependent implementations used various combinations
of KSTACK_GUARD and KSTACK_GUARD_PAGES.  To disable guard page, set
KSTACK_GUARD_PAGES to 0.

2. Remove the (unnecessary) clearing of PG_ZERO in vm_thread_new.  In
5.x, (but not 4.x,) PG_ZERO can only be set if VM_ALLOC_ZERO is passed
to vm_page_alloc() or vm_page_grab().
2003-06-14 23:23:55 +00:00
John Baldwin
9dc9d63d01 Reinstate the bug fix in revision 1.2 as it is correct. The errors I saw
on my laptop after this change were the result of a bug in the ACPICA code.
2003-06-07 14:34:18 +00:00
John Baldwin
ba40a03417 - Rename nexus_pcib to legacy_pcib. I've been meaning to do this for a
while after the legacy device was added since this driver hangs from
  legacy and not nexus.
- Make several methods non-static so they can be reused in a mptable
  host -> pci bridge driver that will be added at a later date.
- Let legacy_pcib() use pcibios_pcib_route_interrupt() directly instead of
  wrapping it in a private function.  Originally, I thought I was going to
  have the nexus_pcib() driver make a runtime APIC vs. 8259A check and call
  the appropriate routing method (MPTable vs. PIR) that way, but it ended
  up being cleaner to make nexus_pcib() just work with PIR and have a
  separate host -> pci bridge driver for the mptable/apic case.
2003-06-06 17:56:30 +00:00
John Baldwin
e59ae32f18 - Document the thermal and performance counter LVT entries in the local
APIC.
- Add a lvt_thermal member to the LAPIC struct.
- Add constants for the SMI and INIT LVT delivery modes.
2003-06-06 17:22:15 +00:00
John Baldwin
8375d3a4bc Bah, revert the previous commit for the time being due to inadequate testing
on my part.  The output asm looks correct with the previous commit in place
and it works on amd64, but on my laptop I got a spew of AE_BAD_PARAMETER
errors trying to unlock the acpi global lock.
2003-06-03 18:44:31 +00:00
John Baldwin
d234ea4e0b Fix the asm constraints so that we use the correct constants when acquiring
and releasing ACPI global locks instead of (ab)using the pointers to those
locks as the constants.  Also, rather than require that the address of
the lock be stored in a register, use a memory constraint allowing the
memory address to be used directly.

Noticed by:	peter
2003-06-03 14:46:16 +00:00
David E. O'Brien
9676a785e7 Use __FBSDID(). 2003-06-02 06:43:15 +00:00
David E. O'Brien
8d19a0584b Don't use ## to concatinate to two things that don't together make a C token.
Two tokens that don't together form a vaid preprocssor token cannot be
pasted together using ANSI-C token concatinatation.  GCC 3.2's cpp, at least,
produces the desired result w/o using "##".
2003-06-02 02:41:38 +00:00
David E. O'Brien
69bb404192 Use C99 compatable asm statements. 2003-06-02 00:29:35 +00:00
Hiten Pandya
b77c32a07e Rename BUS_DMAMEM_NOSYNC to BUS_DMA_COHERENT.
The current name is confusing, because it indicates to
the client that a bus_dmamap_sync() operation is not
necessary when the flag is specified, which is wrong.

The main purpose of this flag is to hint the underlying
architecture that DMA memory should be mapped in a coherent
way, but the architecture can ignore it.  But if the
architecture does supports coherent mapping of memory, then
it makes bus_dmamap_sync() calls cheap.

This flag is the same as the one in NetBSD's Bus DMA.

Reviewed by: gibbs, scottl, des (implicitly)
Approved by: re@ (jhb)
2003-05-30 20:40:33 +00:00
Scott Long
7e71df9339 Bring back bus_dmasync_op_t. It is now a typedef to an int, though the
BUS_DMASYNC_ definitions remain as before.  The does not change the ABI,
and reverts the API to be a bit more compatible and flexible.  This has
survived a full 'make universe'.

Approved by:	re (bmah)
2003-05-27 04:59:59 +00:00
Scott Long
c87d464f28 De-orbit bus_dmamem_alloc_size(). It's a hack and was never used anyways.
No need for it to pollute the 5.x API any further.

Approved by:	re (bmah)
2003-05-26 04:00:52 +00:00
Alexander Kabaev
980ded9a7d sys/sys/limits.h:
- Fix visibilty test for LONG_BIT and WORD_BIT.  `#if defined(__FOO_VISIBLE)'
   is alays wrong because __FOO_VISIBLE is always defined (to 0 for
   invisibility).

sys/<arch>/include/limits.h
sys/<arch>/include/_limits.h:

 - Style fixes.

Submitted by:	bde
Reviewed by:	bsdmike
Approved by:	re (scottl)
2003-05-19 20:29:07 +00:00
Alan Cox
4a0d6dfd2c Initialize logical_cpus_mask when the logical CPUs are enumerated in
the mptable.  (Previously, logical_cpus_mask was only initialized if
the hyperthreading fixup was executed.)

Approved by:	re (jhb)
Reviewed by:	ps
2003-05-15 05:12:24 +00:00
Alexander Kabaev
0eda4c08a5 Style fixes.
Remove DBL_DIG, DBL_MIN, DBL_MAX and their FLT_ counterparts, they
were marked for deprecation ever since SUSv1 at least.
Only define ULLONG_MIN/MAX and LLONG_MAX if long long type is
supported.
Restore a lost comment in MI _limits.h file and remove it from
sys/limits.h where it does not belong.
2003-05-04 22:13:04 +00:00
Peter Wemm
cda4b241e2 Hack to enable getting two different elf32 and elf64 loaders in the
same i386 loader binary.
2003-05-01 03:46:12 +00:00
Peter Wemm
e7d32e949b <b30> is 'IA64' - ie: you're running on an ia64 in 32 bit mode. 2003-05-01 03:44:40 +00:00
Peter Wemm
7f47668191 Slight reorg and added AMD64 support. A couple of the MODINFOMD_* values
that were added to sparc64 and later powerpc, really should have been in
the MI area.  But changing that now with insufficient preperation will
just cause too much pain.

Move MD_FETCH() to the MI sys/linker.h file to avoid another two copies
of it.
2003-05-01 03:31:18 +00:00
Peter Wemm
4580c352e1 KPT_MIN_ADDRESS and KPT_MAX_ADDRESS are not used anywhere. And if they
were, they are not safe to use outside of the kernel since these values
can change at kernel compile time - ie: we do not want them compiled into
userland binaries.
2003-05-01 00:10:38 +00:00
Alexander Kabaev
104a9b7e3e Deprecate machine/limits.h in favor of new sys/limits.h.
Change all in-tree consumers to include <sys/limits.h>

Discussed on:	standards@
Partially submitted by: Craig Rodrigues <rodrigc@attbi.com>
2003-04-29 13:36:06 +00:00
Jake Burkholder
14ce5bd49b Use inlines for loading and storing page table entries. Use cmpxchg8b for
the PAE case to ensure idempotent 64 bit loads and stores.

Sponsored by:	DARPA, Network Associates Laboratories
2003-04-28 20:35:36 +00:00
Alexander Kabaev
6fd839f9c7 Add a new sys/limits.h file which in turn depends on machine/_limits.h
to get actual constant values. This is in preparation for machine/limits.h
retirement.

Discussed on:	standards@
Submitted by:	Craig Rodrigues <rodrigc@attbi.com>  (*)
Modified by:	kan
2003-04-23 21:41:59 +00:00
David Xu
d1fc2022c3 Backout my last commit.
Requested by: bde
2003-04-20 01:35:21 +00:00
David Xu
2bdf11638e Don't return garbage in high 16 bits. 2003-04-19 02:40:39 +00:00
Maxime Henrion
141bacb048 Change the operation parameter of bus_dmamap_sync() from an
enum to an int and redefine the BUS_DMASYNC_* constants as
flags.  This allows us to specify several operations in one
call to bus_dmamap_sync() as in NetBSD.
2003-04-10 23:03:33 +00:00
Jake Burkholder
ac00210525 Remove invalid cast to vm_offset_t to avoid truncating a physical address
when doing pmap_kextract on a 2MB page.

Spotted by:	peter
Sponsored by:	DARPA, Network Associates Laboratories
2003-04-08 18:22:41 +00:00
Jake Burkholder
46ea68dd10 Better fix for previous previous which still allows the 4megs of kva at
the top of the address space to be reclaimed.  The problem is that with
the APTD gone the mapable kernel address space runs right to the end of
the 32 bit address space.  As a max this is 0x100000000, which can't be
represented in 32 bits, so we have to use ptd entry n-1 and pte offset
n-1, instead of ptd entry n and pte offset 0.  There's still 1 page we
can't use, but we gain just under 4 megs of kva (8 megs with PAE).

Sponsored by:	DARPA, Network Associates Laboratories
2003-04-07 14:27:19 +00:00
Dag-Erling Smørgrav
9f45b2da8f Define ovbcopy() as a macro which expands to the equivalent bcopy() call,
to take care of the KAME IPv6 code which needs ovbcopy() because NetBSD's
bcopy() doesn't handle overlap like ours.

Remove all implementations of ovbcopy().

Previously, bzero was a function pointer on i386, to save a jmp to
bzero_vector.  Get rid of this microoptimization as it only confuses
things, adds machine-dependent code to an MD header, and doesn't really
save all that much.

This commit does not add my pagezero() / pagecopy() code.
2003-04-04 17:29:55 +00:00
Poul-Henning Kamp
197e5e73ef Libdisk does not need to include <sys/diskslice.h> any more.
Move the remaining bits of <sys/diskslice.h> to <i386/include/bootinfo.h>

Move i386/pc98 specific bits from <sys/reboot.h> to
<i386/include/bootinfo.h> as well.

Adjust includes in sys/boot accordingly.
2003-04-04 16:35:16 +00:00
Jake Burkholder
d1d03c2b72 Bandaid fix for previous commit while I figure out why it broke. This
caused crashes early in boot on i386 UP machines.

Reported by:	phk
Pointy hat to:	jake
2003-04-04 10:09:44 +00:00
Jake Burkholder
163529c2b3 - Removed APTD and associated macros, it is no longer used.
BANG BANG BANG etc.

Sponsored by:	DARPA, Network Associates Laboratories
2003-04-03 23:44:35 +00:00
Peter Wemm
cc66ebe2a9 Commit a partial lazy thread switch mechanism for i386. it isn't as lazy
as it could be and can do with some more cleanup.  Currently its under
options LAZY_SWITCH.  What this does is avoid %cr3 reloads for short
context switches that do not involve another user process.  ie: we can
take an interrupt, switch to a kthread and return to the user without
explicitly flushing the tlb.  However, this isn't as exciting as it could
be, the interrupt overhead is still high and too much blocks on Giant
still.  There are some debug sysctls, for stats and for an on/off switch.

The main problem with doing this has been "what if the process that you're
running on exits while we're borrowing its address space?" - in this case
we use an IPI to give it a kick when we're about to reclaim the pmap.

Its not compiled in unless you add the LAZY_SWITCH option.  I want to fix a
few more things and get some more feedback before turning it on by default.

This is NOT a replacement for Bosko's lazy interrupt stuff.  This was more
meant for the kthread case, while his was for interrupts.  Mine helps a
little for interrupts, but his helps a lot more.

The stats are enabled with options SWTCH_OPTIM_STATS - this has been a
pseudo-option for years, I just added a bunch of stuff to it.

One non-trivial change was to select a new thread before calling
cpu_switch() in the first place.  This allows us to catch the silly
case of doing a cpu_switch() to the current process.  This happens
uncomfortably often.  This simplifies a bit of the asm code in cpu_switch
(no longer have to call choosethread() in the middle).  This has been
implemented on i386 and (thanks to jake) sparc64.  The others will come
soon.  This is actually seperate to the lazy switch stuff.

Glanced at by:  jake, jhb
2003-04-02 23:53:30 +00:00
Poul-Henning Kamp
09bf42f50f Don't include <sys/buf.h> needlessly. 2003-04-01 09:02:58 +00:00
Jake Burkholder
7ab9b220d9 - Add support for PAE and more than 4 gigs of ram on x86, dependent on the
kernel opition 'options PAE'.  This will only work with device drivers which
  either use busdma, or are able to handle 64 bit physical addresses.

Thanks to Lanny Baron from FreeBSD Systems for the loan of a test machine
with 6 gigs of ram.

Sponsored by:	DARPA, Network Associates Laboratories, FreeBSD Systems
2003-03-30 05:24:52 +00:00
Jake Burkholder
de54353fb8 - Remove invalid casts.
Sponsored by:	DARPA, Network Associates Laboratories
2003-03-30 01:44:16 +00:00
Jake Burkholder
aea57872f0 - Convert all uses of pmap_pte and get_ptbase to pmap_pte_quick. When
accessing an alternate address space this causes 1 page table page at
  a time to be mapped in, rather than using the recursive mapping technique
  to map in an entire alternate address space.  The recursive mapping
  technique changes large portions of the address space and requires global
  tlb flushes, which seem to cause problems when PAE is enabled.  This will
  also allow IPIs to be avoided when mapping in new page table pages using
  the same technique as is used for pmap_copy_page and pmap_zero_page.

Sponsored by:	DARPA, Network Associates Laboratories
2003-03-30 01:16:19 +00:00
Paul Saab
87437b0b89 Nuke options HTT infavor of machdep.hlt_logical_cpus tunable/sysctl.
This keeps the logical cpu's halted in the idle loop.  By default
the logical cpu's are halted at startup.  It is also possible to
halt any cpu in the idle loop now using machdep.hlt_cpus.

Examples of how to use this:
machdep.hlt_cpus=1	halt cpu0
machdep.hlt_cpus=2	halt cpu1
machdep.hlt_cpus=4	halt cpu2
machdep.hlt_cpus=3	halt cpu0,cpu1

Reviewed by:	jhb, peter
2003-03-26 19:49:34 +00:00
Jake Burkholder
227f9a1c58 - Add vm_paddr_t, a physical address type. This is required for systems
where physical addresses larger than virtual addresses, such as i386s
  with PAE.
- Use this to represent physical addresses in the MI vm system and in the
  i386 pmap code.  This also changes the paddr parameter to d_mmap_t.
- Fix printf formats to handle physical addresses >4G in the i386 memory
  detection code, and due to kvtop returning vm_paddr_t instead of u_long.

Note that this is a name change only; vm_paddr_t is still the same as
vm_offset_t on all currently supported platforms.

Sponsored by:	DARPA, Network Associates Laboratories
Discussed with:	re, phk (cdevsw change)
2003-03-25 00:07:06 +00:00
Matthew N. Dodd
1352a54255 Use __packed; 2003-03-24 20:44:39 +00:00
John Baldwin
a480c73063 Expand the APIC ID mask field of the ICR register to 8 bits intead of just
4 bits.  This reportedly fixes booting on the SW7500CW2.  Much thanks to
the submitter for tracking this down!

Submitted by:	Brian Buchanan <brian@ncircle.com>
Reviewed by:	peter
MFC after:	3 days
2003-03-17 19:14:13 +00:00
Jake Burkholder
5501d40bb9 Made the prototypes for pmap_kenter and pmap_kremove MD. These functions
are machine dependent because they are not required to update the tlb when
mappings are added or removed, and doing so is machine dependent.
In addition, an implementation may require that pages mapped with pmap_kenter
have a backing vm_page_t, which is not necessarily true of all physical
pages, and so may choose to pass the vm_page_t to pmap_kenter instead of the
physical address in order to make this requirement clear.
2003-03-16 04:16:03 +00:00
Jake Burkholder
2089c5c95e Use bus_space_handle_t to represent host port and virtual addresses;
bus_addr_t may not be appropriate.

Sponsored by:	DARPA, Network Associates Laboratories
2003-03-11 19:43:38 +00:00
John Baldwin
d7a715dc64 Wrap the hyperthreading support code with the HTT kernel option.
Hyperthreading support is now off unless the HTT option is added.

MFC-after:	3 days
2003-03-04 20:24:53 +00:00
Alan Cox
8480cd45a5 Remove some long unused declarations. (For example, the PV flags have not
been used since revision 1.8, roughly nine years ago.)
2003-02-27 20:13:20 +00:00
Maxime Henrion
f6c912dd0c Correctly set BUS_SPACE_MAXSIZE in all the busdma backends.
It was bogusly set to 64 * 1024 or 128 * 1024 because it was
bogusly reused in the BUS_DMAMAP_NSEGS definition.
2003-02-26 02:16:06 +00:00
Jake Burkholder
0f1a7e05a2 - Added inlines pmap_is_current, pmap_is_alternate and pmap_set_alternate
for testing and setting the current and alternate address spaces.
- Changed PTDpde and APTDpde to arrays to support multiple page directory
  pages.

ponsored by:	DARPA, Network Associates Laboratories
2003-02-25 19:40:21 +00:00
Jake Burkholder
5cd612b27e - Removed UMAXPTDI and UMAXPTEOFF.
- Changed VM_MAXUSER_ADDRESS to be defined in terms of PTDPTDI.  In order for
  assumptions about the recursive page table map to work it must be the base
  of the recursive map.  Any pte offset that's not NPTEPG will break these
  assumptions.

Sponsored by:	DARPA, Network Associates Laboratories
2003-02-24 20:29:52 +00:00
Yoshihiro Takahashi
2302407b21 The mpbiosreason variable does not used for pc98. 2003-02-24 14:36:03 +00:00
Tor Egge
07d2563244 Allow machines with one CPU and a valid mp table to boot an SMP kernel. 2003-02-23 23:49:57 +00:00
Jake Burkholder
ef49a94104 Previous commit missed a 1 that should be NGPTD, and an NPDEPG that should
be NPDEPTD.  Grumble.

Sponsored by:	DARPA, Network Associates Laboratories
2003-02-23 22:12:08 +00:00
Jake Burkholder
910548dea7 - Added macros NPGPTD, NBPTD, and NPDEPTD, for dealing with the size of the
page directory.
- Use these instead of the magic constants 1 or PAGE_SIZE where appropriate.
  There are still numerous assumptions that the page directory is exactly
  1 page.

Sponsored by:	DARPA, Network Associates Laboratories
2003-02-23 21:20:00 +00:00
Jake Burkholder
e29632c9e1 - Added macros PDESHIFT and PTESHIFT, use these instead of magic constants
in locore.
- Removed the macros PTESIZE and PDESIZE, use sizeof instead in C.

Sponsored by:	DARPA, Network Associates Laboratories
2003-02-23 09:45:50 +00:00
Alan Cox
01a06ce250 The root of the splay tree maintained within the pm_pteobj always refers
to the last accessed pte page.  Thus, the pm_ptphint is redundant and can
be removed.
2003-02-22 23:43:08 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Peter Wemm
af3d516f55 Initiate de-orbit burn for USE_PCI_BIOS_FOR_READ_WRITE. This has been
#if'ed out for a while.  Complete the deed and tidy up some other bits.

We need to be able to call this stuff from outer edges of interrupt
handlers for devices that have the ISR bits in pci config space.  Making
the bios code mpsafe was just too hairy.  We had also stubbed it out some
time ago due to there simply being too much brokenness in too many systems.
This adds a leaf lock so that it is safe to use pci_read_config() and
pci_write_config() from interrupt handlers.  We still will use pcibios
to do interrupt routing if there is no acpi.. [yes, I tested this]

Briefly glanced at by:  imp
2003-02-18 03:36:49 +00:00
Poul-Henning Kamp
f341ca9891 Remove #include <sys/dkstat.h> 2003-02-16 14:13:23 +00:00
Mike Barcroft
8cf5ed5125 Implement fpclassify():
o Add a MD header private to libc called _fpmath.h; this header
  contains bitfield layouts of MD floating-point types.
o Add a MI header private to libc called fpmath.h; this header
  contains bitfield layouts of MI floating-point types.
o Add private libc variables to lib/libc/$arch/gen/infinity.c for
  storing NaN values.
o Add __double_t and __float_t to <machine/_types.h>, and provide
  double_t and float_t typedefs in <math.h>.
o Add some C99 manifest constants (FP_ILOGB0, FP_ILOGBNAN, HUGE_VALF,
  HUGE_VALL, INFINITY, NAN, and return values for fpclassify()) to
  <math.h> and others (FLT_EVAL_METHOD, DECIMAL_DIG) to <float.h> via
  <machine/float.h>.
o Add C99 macro fpclassify() which calls __fpclassify{d,f,l}() based
  on the size of its argument.  __fpclassifyl() is never called on
  alpha because (sizeof(long double) == sizeof(double)), which is good
  since __fpclassifyl() can't deal with such a small `long double'.

This was developed by David Schultz and myself with input from bde and
fenner.

PR:		23103
Submitted by:	David Schultz <dschultz@uclink.Berkeley.EDU>
		(significant portions)
Reviewed by:	bde, fenner (earlier versions)
2003-02-08 20:37:55 +00:00
Poul-Henning Kamp
d1b40f007d i386/i386/tsc.c was repo-copied from i386/isa/clock.c.
Remove all the stuff that does not relate to the TSC.

Change the calibration to use DELAY(1000000) rather than trying to check
it against the CMOS RTC, this drastically increases precision:

Using 25 samples on a Athlon 700MHz UP machine I find:

                stddev          min          max        average
CMOS             22200 Hz    -74980 Hz     34301 Hz   704928721 Hz
DELAY             1805 Hz     -1984 Hz      2678 Hz   704937583 Hz

(The difference between the two averages is not statistically significant.)

expressed in PPM of the frequency:
                stddev          min          max
CMOS             31.49 PPM  -106.37 PPM    48.66 PPM
DELAY             2.56 PPM     2.81 PPM     3.80 PPM

This code will not be used until a followup commit to sys/isa/clock.c
and sys/pc98/pc98/clock.c which will only happen after some field testing.
2003-02-05 09:20:40 +00:00
Poul-Henning Kamp
553ebddc59 Make get_cyclecount() use binuptime() when no tsc is available: it is cheaper. 2003-02-05 08:55:10 +00:00
Jake Burkholder
238dd3209a Split statclock into statclock and profclock, and made the method for driving
statclock based on profhz when profiling is enabled MD, since most platforms
don't use this anyway.  This removes the need for statclock_process, whose
only purpose was to subdivide profhz, and gets the profiling clock running
outside of sched_lock on platforms that implement suswintr.
Also changed the interface for starting and stopping the profiling clock to
do just that, instead of changing the rate of statclock, since they can now
be separate.

Reviewed by:	jhb, tmm
Tested on:	i386, sparc64
2003-02-03 17:53:15 +00:00
Julian Elischer
6f8132a867 Reversion of commit by Davidxu plus fixes since applied.
I'm not convinced there is anything major wrong with the patch but
them's the rules..

I am using my "David's mentor" hat to revert this as he's
offline for a while.
2003-02-01 12:17:09 +00:00
Poul-Henning Kamp
3c99c0bc50 Make tsc_freq a 64bit quantity.
Inspired by:    http://www.theinquirer.net/?article=7481
2003-01-29 11:36:39 +00:00
Scott Long
5193a34646 Implement bus_dmamem_alloc_size() and bus_dmamem_free_size() as
counterparts to bus_dmamem_alloc() and bus_dmamem_free().  This allows
the caller to specify the size of the allocation instead of it defaulting
to the max_size field of the busdma tag.

This is intended to aid in converting drivers to busdma.  Lots of
hardware cannot understand scatter/gather lists, which forces the
driver to copy the i/o buffers to a single contiguous region
before sending it to the hardware.  Without these new methods, this
would require a new busdma tag for each operation, or a complex
internal allocator/cache for each driver.

Allocations greater than PAGE_SIZE are rounded up to the next
PAGE_SIZE by contigmalloc(), so this is not suitable for multiple
static allocations that would be better served by a single
fixed-length subdivided allocation.

Reviewed by:	jake (sparc64)
2003-01-29 07:25:27 +00:00
Jake Burkholder
aff81a81d6 Remove BDE_DEBUGGER.
Discussed with:	bde
2003-01-28 19:05:44 +00:00
Julian Elischer
a18b6f65d0 Fix KSE related patch.
Make it compile for the SMP case..
statclock_process() has changed prototypes.
2003-01-26 21:32:08 +00:00
Peter Wemm
99ebb0bfba Clean up some junk defines, and GC the TPR options. 2003-01-23 01:04:27 +00:00
Peter Wemm
904639d710 Nuke CHEAP_TPR stuff, including LOPRIO_LEVEL (bogus) and ALLHWI_LEVEL
(which we never used).  There is no need to tweak the TPR anymore and
only causes problems.
2003-01-23 01:03:34 +00:00
John Baldwin
10deca7e68 - Move enable_sse()'s prototype to machine/md_var.h.
- Sort definition of cpu_* variables appropriately.
- Move cpu_fxsr out of the magic non-BSS set of variables and stick it in
  the BSS along with hw_instruction_sse (make the latter static as well).

Submitted by:	bde (partially)
2003-01-22 18:18:45 +00:00
John Baldwin
caf3197636 Rename cpuid_cpuinfo to cpu_procinfo. bde requested that I rename this
variable to something in the cpu_* namespace since that's what all the
other cpuid variables were named and cpu_procinfo is what I came up with.

Requested by:	bde
2003-01-22 17:54:12 +00:00
John Baldwin
f4e27c448b Bah, add in a missing space char I noticed when MFC'ing this. 2003-01-22 17:26:18 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Marcel Moolenaar
9d683ffd4b o Move the contents of <machine/floatingpoint.h> over to
<machine/ieeefp.h> where it belongs.
o  Remove the i386 specific inclusion of <machine/floatingpoint.h>
   from <ieeefp.h>, now that including <machine/ieeefp.h> is enough
   for all architectures.
o  Allow <machine/ieeefp.h> to inline the functions exposed by the
   headers by checking for _IEEEFP_INLINED_ in the MI header. When
   defined, prototypes are not given and it is assumed that the MD
   headers, when inlining only a subset of the functions provide
   prototypes for the functions not being inlined.

Based on patch from: Terry Lambert <tlambert2@mindspring.com>
Tested with: make release.
2003-01-19 06:01:33 +00:00
Matthew N. Dodd
7534ac7ab7 A driver for the System Management Application Program
Interface (SMAPI) BIOS, which is present on some IBM
Thinkpad models (560, 600, 770 to name a few.)

The SMAPI BIOS provides access to System Information,
System Configuration, and Power Management.
2003-01-17 08:10:18 +00:00
John Baldwin
f85b149dae Rework part of the previous processor name changes so that we read
cpu_exthigh and cpu_brand in printcpuinfo() instead of in identify_cpu().
We also only do it for known-good values of cpu_vendor which is a bit more
conservative.

Reviewed by:	bde (mostly)
2003-01-09 19:54:49 +00:00
John Baldwin
26aa6d02bf - Add a cpu_exthigh variable to hold the highest extended cpuid value
returned from cpuid 0x80000000.
- Add a cpu_brand char array to hold the processor name returned by
  cpuid 0x80000002-0x80000004 on AMD, Intel, Transmeta, and possibly
  other CPUs.
- Use cpuid to set cpu_exthigh and read the processor name if it is present
  in identify_cpu().
2003-01-08 16:35:59 +00:00
John Baldwin
f4b4a64293 Enumerate logical hyperthread CPUs manually if they aren't already listed
in the mptable.  The way this works is that we determine if the system
has hyperthreading and how many logical CPU's should be in each physical
CPU by using the information returned by cpuid.  During the first pass of
the mptable, we build a bitmask of the APIC IDs of the CPUs listed in the
mptable.  We then scan that bitmask to see if the CPUs are already listed
by the mptable, or if there are any APIC IDs already in use that would
conflict with the APIC IDs of the logical CPUs.  If that test succeeds,
then we fixup the count of application processors.  Later on during the
second pass of the mptable we create fake processor entries for logical
CPUs and add them to the system.

We only need this type of fixup hack when using the mptable to enumerate
CPUs.  The ACPI MADT table properly enumerates all logical CPUs.
2003-01-08 01:33:18 +00:00
John Baldwin
fa896b7280 Add a cpuid_cpuinfo variable to hold the results of %ebx from cpuid with
%eax of 1 and set it in identify_cpu().
2003-01-08 01:20:05 +00:00
John Baldwin
72a1e0e226 - Fix the name of the hyperthreading cpuid feature flag to be HTT instead
of HHT.
- Document fields returned in %ebx by a cpuid with %eax of 1.
2003-01-08 01:15:26 +00:00
Jens Schweikhardt
9d5abbddbf Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.
2003-01-01 18:49:04 +00:00
Tim J. Robbins
b30a7779d4 MB_LEN_MAX is not MD, move it to the MI limits.h. 2002-12-22 06:38:45 +00:00
Daniel Eischen
a3dca4517e Align the FPU state in the ucontext and sigcontext to 16 bytes
to accomodate the new SSE/XMM floating point save/restore
instructions.

This commit is mostly from bde and includes some style nits.

Approved by:	re (jhb)
2002-12-02 19:58:55 +00:00
David E. O'Brien
6380ce4de1 Fix for non-GCC compilers.
Approved by:	re (jhb)
2002-11-27 16:28:18 +00:00
Daniel Eischen
2be05b70c9 Add getcontext, setcontext, and swapcontext as system calls.
Previously these were libc functions but were requested to
be made into system calls for atomicity and to coalesce what
might be two entrances into the kernel (signal mask setting
and floating point trap) into one.

A few style nits and comments from bde are also included.

Tested on alpha by: gallatin
2002-11-16 06:35:53 +00:00
Alfred Perlstein
4ef42f2b0f Properly parenthesize the DBREG_DRX macro's variables to allow for
DBREG_DRX(&dbregs, n) usage.
2002-11-07 22:42:31 +00:00
David Xu
8c132e9fae 1.Fix smp race between kernel vm86 BIOS calling and userland vm86 mode code,
remove global variable in_vm86call, set vm86 calling flag in PCB flags.

2.Fix vm86 BIOS calling preempted problem by changing vm86_lock mutex type
  from MTX_DEF to MTX_SPIN. vm86pcb is not remembered in thread struct,
  when the thread calling vm86 BIOS is preempted by interrupt thread,
  and later switching back to the thread would cause incorrect context be
  loaded into CPU registers, this leads to kernel crash.
2002-11-07 01:34:23 +00:00
John Baldwin
ab79480392 Note that the sched_lock protects md_ldt of struct mdproc. 2002-10-25 20:06:16 +00:00
Peter Wemm
23eeeff7be Split 4.x and 5.x signal handling so that we can keep 4.x signal
handling clean and functional as 5.x evolves.  This allows some of the
nasty bandaids in the 5.x codepaths to be unwound.

Encapsulate 4.x signal handling under COMPAT_FREEBSD4 (there is an
anti-foot-shooting measure in place, 5.x folks need this for a while) and
finish encapsulating the older stuff under COMPAT_43.  Since the ancient
stuff is required on alpha (longjmp(3) passes a 'struct osigcontext *'
to the current sigreturn(2), instead of the 'ucontext_t *' that sigreturn
is supposed to take), add a compile time check to prevent foot shooting
there too.  Add uniform COMPAT_43 stubs for ia64/sparc64/powerpc.

Tested on: i386, alpha, ia64.  Compiled on sparc64 (a few days ago).
Approved by: re
2002-10-25 19:10:58 +00:00
Warner Losh
d793791855 Use the correct values for LDBL_*. Libc doesn't completely support
long doubles at the moment (printf truncates them to doubles).
However, long doubles to appear to work to the ranges listed in this
commit on both -stable (4.5) and -current.  There may be some slight
rounding issues with long doubles, but that's an orthogonal issue to
these constants.

I've had this in my local tree for 3 months, and in my company's local
tree for 15 months with no ill effects.

Obtained from: NetBSD
Not likely to like it: bde
2002-10-25 07:02:52 +00:00
Mark Murray
64f82235d8 Very minor whitespace/style nit. 2002-10-23 10:14:30 +00:00
Poul-Henning Kamp
50c026e579 Change the definition of the debugging registers to be an array, so
that we can index into it, rather than do pointer gymnastics on a
structure containing 8 elements.

Verified by:	MD5 hash on the produced .o files.
2002-10-20 20:48:56 +00:00
Jim Pirzyk
b2eb172cc3 Add the !define(COMPILING_LINT)
pass the pointy hat...

Requested by: Juli Mallett <jmallett@FreeBSD.org>
2002-10-17 18:17:28 +00:00
Jim Pirzyk
c8c1cf0ca7 put an #error directive when SMP and CPU_DISABLE_CMPXCHG are set
together.

Requested by: Lars Eggart <larse@isi.edu>
Enlighted how to do it by: John Baldwin <jhb@freebsd.org>
2002-10-17 05:51:36 +00:00
Poul-Henning Kamp
1eaae5cbe8 Be consistent about functions being static.
Spotted by:	FlexeLint.
2002-10-16 08:57:14 +00:00
Peter Wemm
af3f249f3a The a.out md_coredump stuff isn't referenced anywhere anymore, and
hasn't been filled in for ages..  Nuked.
2002-10-15 00:02:50 +00:00
Jim Pirzyk
77e8341280 Add a knob to turn on and off the CMPXCHG instruction on > i386 IA32 systems.
This is most beneficial for vmware client os installs.

Reviewed by: jmallet, iedowse, tlambert2@mindspring.com
MFC After: never, -STABLE does not currently use this instruction
2002-10-14 19:33:12 +00:00
Mike Barcroft
7a77412855 Add standards visibility conditionals. Change any uses of sigset_t to
struct __sigset to avoid depending on objects from <sys/signal.h>.
2002-10-13 00:31:46 +00:00
Mike Barcroft
ddb056b7d4 Add conditionals to allow va_list to be defined in other headers. 2002-10-06 22:02:06 +00:00
Mike Barcroft
0b058e3cbd o Add conditionals to allow va_list to be defined in other headers.
o Standardize on _MACHINE_STDARG_H_ to allow multiple header includes.
o Restrict the definition of va_copy() to C99 environments.
2002-10-06 22:01:07 +00:00
Mike Barcroft
e61d3b10d7 Fix namespace issues by using visibility conditionals from
<sys/cdefs.h>.
2002-10-05 05:47:56 +00:00
Mike Barcroft
085f8416a2 style(9) <machine/setjmp.h> headers so they look mostly the same. 2002-10-04 22:10:06 +00:00
Sam Leffler
14c17bd293 New bus_dma interfaces for use by crypto device drivers:
o bus_dmamap_load_mbuf
o bus_dmamap_load_uio

Test on i386.  Known to compile on alpha and sparc64, but not tested.
Otherwise untried.
2002-10-04 20:40:39 +00:00
Daniel Eischen
80047e95cf Add another temporary hack to allow running older i386 binaries.
This will be removed when new versions of syscalls sigreturn()
and sigaction() are added (mini is working on this but is in
the middle of a move).

This should fix the problem of cvsupd dying.
2002-10-04 14:50:55 +00:00
Bruce Evans
e0c386dd90 Removed bits related to MBRs now that they have a proper home in
<sys/diskmbr.h>.
2002-10-02 03:29:00 +00:00
Poul-Henning Kamp
c2b6013026 It is too much work convincing lint why we would want empty structures,
so make the non-empty #ifdef lint.
2002-10-01 14:08:08 +00:00
Poul-Henning Kamp
0d5858f265 Use long long to indicate 64bitness in #ifdef lint. 2002-10-01 14:07:18 +00:00
Poul-Henning Kamp
7e9bac35e2 A more lint friendly #ifdef lint section. 2002-10-01 14:01:58 +00:00
David E. O'Brien
dbe57134ec Turn back on the "SMP: AP CPU #N Launched!" message on normal boots.
Peter's rev 1.189 should fix the lost console on SCSI-based systems due
to this message.
2002-09-30 15:39:57 +00:00
David E. O'Brien
469541bfde Only print out the "SMP: AP CPU #N Launched!" message on verbose boots.
The kernel printf() isn't race-free
2002-09-30 07:03:16 +00:00
Peter Wemm
feea0ab05b There is no need for start/num to be signed in i386_ldt_args. 2002-09-28 20:42:04 +00:00
Peter Wemm
bbe04fe2ca ISMEMSDP(), IS286GDP(), IS386GDP(), ISGDP(), ISSDP() and ISSYSSDP() are
not used anywhere anymore.
2002-09-26 05:07:41 +00:00
Mark Murray
82e5cdeb6e Fix a declaration that is actually supposed to be a macro definition.
Submitted by:	marius@alchemy.franken.de
2002-09-25 13:46:23 +00:00
Alfred Perlstein
4f492bfab5 use __packed. 2002-09-23 18:54:32 +00:00
John Baldwin
58eab4797a Update the nexus driver for the addition of the legacy driver:
- nexus no longer has PCI bridges as direct children, so the PCI bus
  ivar is no longer used and is removed.
- Don't attach default EISA, ISA, or MCA busses.  Instead, if we do not
  have an acpi0 device after bus_generic_probe(), add a legacy0 child
  device.
- Remove machine/nexusvar.h.
2002-09-23 16:03:00 +00:00
John Baldwin
e8e951ce31 Add a new legacy(4) device driver for use on machines that do not have
ACPI or for when ACPI support is disabled or not present in the kernel.
Basically, the nexus device is now split into two with some parts
(such as adding default ISA, MCA, and EISA busses if they aren't found
as well as support for PCI bus device ivars) being moved to the legacy
driver.
2002-09-23 15:50:06 +00:00
Peter Wemm
1a8ec9c55a PIC_GOTOFF is OBE. 2002-09-23 07:27:45 +00:00
Peter Wemm
691cb905d6 use __packed, rather than __attribute__((packed)). 2002-09-23 06:50:07 +00:00
Peter Wemm
c692fbe091 At great personal risk, add a __packed and __aligned(x) define that
expand to __attribute__((packed)) and __attribute__((aligned(x)))
respectively.  Replace the handful of gcc-ism's that use
__attribute__((aligned(16))) etc around the kernel with __aligned(16).

There are over 400 __attribute__((packed)) to deal with, that can come
later.  I just want to use __packed in new code rather than add more
gcc-ism's.
2002-09-23 05:55:10 +00:00
Peter Wemm
79af999017 Delete a whole bunch of compatability defines that we dont use anymore. 2002-09-23 05:04:05 +00:00
Mike Barcroft
c0d4804d67 Be careful not to define GCC-specific optimizations in the non-GCC
case.
2002-09-23 04:32:17 +00:00
Peter Wemm
eb1443c8dd Create inlines for ltr(sel), lldt(sel), lidt(addr) rather than
functions that have one instruction.
2002-09-22 04:45:21 +00:00
Mark Murray
d7ee442578 Provide in inline function for the (GNUC) assembler "hlt" instruction. 2002-09-21 18:26:53 +00:00
Peter Wemm
ea5d4bd842 Repo copied to <sys/smbus/smb.h> 2002-09-19 04:13:43 +00:00
Peter Wemm
37e255de3f Repo copied to <sys/iicbus/iic.h> 2002-09-19 04:13:29 +00:00
Mike Barcroft
86954511d2 Implement C99's va_copy() macro. 2002-09-18 07:33:16 +00:00
Peter Wemm
66422f5b7a Initiate deorbit burn for the i386-only a.out related support. Moves are
under way to move the remnants of the a.out toolchain to ports.  As the
comment in src/Makefile said, this stuff is deprecated and one should not
expect this to remain beyond 4.0-REL.  It has already lasted WAY beyond
that.

Notable exceptions:
gcc - I have not touched the a.out generation stuff there.
ldd/ldconfig - still have some code to interface with a.out rtld.
old as/ld/etc - I have not removed these yet, pending their move to ports.
some includes - necessary for ldd/ldconfig for now.

Tested on: i386 (extensively), alpha
2002-09-17 01:49:00 +00:00
Jonathan Mini
9ba1547929 Add kernel support needed for the KSE-aware libpthread:
- Maintain fpu state across signals.
	- Save and restore FPU state properly in ucontext_t's.

Reviewed by:	deischen, julian
Approved by:	-arch
2002-09-16 19:25:41 +00:00
John Baldwin
c3ba1376f5 Add a function pci_probe_route_table() that returns true if our PCI BIOS
supports interrupt routing and if the specified PCI bus is present in the
routing table.
2002-09-06 22:15:44 +00:00
John Baldwin
8ab96fd8d0 - Add a pci_cfgintr_valid() function to see if a given IRQ is a valid
IRQ for an entry in a PCIBIOS interrupt routing ($PIR) table.
- Change pci_cfgintr() to except the current IRQ of a device as a fourth
  argument and to use that IRQ for the device if it is valid.
- If an intpin entry in a $PIR entry has a link of 0, it means that that
  intpin isn't connected to anything that can trigger an interrupt.  Thus,
  test the link against 0 to find invalid entries in the table instead of
  implicitly relying on the irqs field to be zero.  In the machines I have
  looked at, intpin entries with a link of 0 often have the bits for all
  possible interrupts for PCI devices set.
2002-09-06 17:08:07 +00:00
John Baldwin
4f99a443f0 Function prototypes don't need 'extern'. 2002-09-04 19:31:09 +00:00
Mike Barcroft
dd1b6791a8 Now that _BSD_CLK_TCK_ and _BSD_CLOCKS_PER_SEC_ are the same on all
architectures, move the definition directly into <time.h> and finish
the removal of <machine/ansi.h>.
2002-09-03 00:06:58 +00:00
Matthew Dillon
ec61f55d42 Reduce the maximum KVA reserved for swap meta structures from 70 to 32 MB.
Reduce the swap meta calculation by a factor of 2, it's still massive overkill.

X-MFC after: immediately
2002-08-31 21:15:29 +00:00
Peter Wemm
447b3772dc Change hw.physmem and hw.usermem to unsigned long like they used to be
in the original hardwired sysctl implementation.

The buf size calculator still overflows an integer on machines with large
KVA (eg: ia64) where the number of pages does not fit into an int.  Use
'long' there.

Change Maxmem and physmem and related variables to 'long', mostly for
completeness.  Machines are not likely to overflow 'int' pages in the
near term, but then again, 640K ought to be enough for anybody.  This
comes for free on 32 bit machines, so why not?
2002-08-30 04:04:37 +00:00
Jake Burkholder
bafbd49201 Renamed poorly named setregs to exec_setregs. Moved its prototype to
imgact.h with the other exec support functions.
2002-08-29 06:17:48 +00:00
Peter Wemm
97e2d5fc53 OK, I have had it with losing my console because the AP's print their "I am
alive!" message right as the scsi probe messages happen.  This is a bit
nasty, but it seems to work.  At the point that we unlock the AP's, briefly
wait till they are all done while we hold the console on their behalf.
2002-08-28 23:24:05 +00:00
Mike Barcroft
bd8e0716d9 Move several MI types from <machine/_types.h> to <sys/_types.h>.
These types are unlikely to ever become very MD.  They include:
clockid_t, ct_rune_t, fflags_t, intrmask_t, mbstate_t, off_t, pid_t,
rune_t, socklen_t, timer_t, wchar_t, and wint_t.

While moving them, make a few adjustments (submitted by bde):
o __ct_rune_t needs to be precisely `int', not necessarily __int32_t,
  since the arg type of the ctype functions is int.
o __rune_t, __wchar_t and __wint_t inherit this via a typedef of
  __ct_rune_t.
o Some minor wording changes in the comment blocks for ct_rune_t and
  mbstate_t.

Submitted by:	bde (partially)
2002-08-23 16:49:06 +00:00
Mike Barcroft
fb6cc33daf Make __clock_t use `unsigned long' rather than a fixed 32-bit integer
so that it changes to the correct size in IP32L64 mode.  Other
architectures don't have this issue.
2002-08-22 00:28:24 +00:00
Mike Barcroft
abbd890233 o Merge <machine/ansi.h> and <machine/types.h> into a new header
called <machine/_types.h>.
o <machine/ansi.h> will continue to live so it can define MD clock
  macros, which are only MD because of gratuitous differences between
  architectures.
o Change all headers to make use of this.  This mainly involves
  changing:
    #ifdef _BSD_FOO_T_
    typedef	_BSD_FOO_T_	foo_t;
    #undef _BSD_FOO_T_
    #endif
  to:
    #ifndef _FOO_T_DECLARED
    typedef	__foo_t	foo_t;
    #define	_FOO_T_DECLARED
    #endif

Concept by:	bde
Reviewed by:	jake, obrien
2002-08-21 16:20:02 +00:00
Maxime Henrion
579bb37015 Use the __BUS_ACCESSOR macro for NEXUS_ACCESSOR
instead of rolling our own implementation.

Reviewed by:	tmm
2002-08-20 13:50:17 +00:00
Hellmuth Michaelis
866a3fa2bf add support properly displaying and logging incoming telephone numbers (MSNs)
by looking at the "type of number" field and providing configurable hooks
to correct the numbers accordingly. See keywords add-prefix, prefix-national
and prefix-international in isdnd.rc(5).
This feature was implemented by Christian Ullrich <chris@chrullrich.de>
2002-08-12 07:53:55 +00:00
Hellmuth Michaelis
9ed6ae76c7 add experimental support for Data over Voice (DoV) outgoing calls.
based on patches received from Guy Ellis (guy@traverse.com.au),
Chris Collins (xfire@xware.cx) and Phillip Musumeci (phillip@cs.jcu.edu.au).
2002-08-11 15:47:26 +00:00
Alan Cox
8365d52166 o Introduce pmap_page_is_mapped(). Its purpose is to obsolete
the PG_MAPPED flag.
2002-08-05 03:40:28 +00:00
Poul-Henning Kamp
14a3a6ea0b Move a prototype to the least wrong place.
Suggested by:	bde
2002-08-02 18:45:43 +00:00
Poul-Henning Kamp
ab4db9b74f The Elan SC520 MMCR is actually 16bit wide, so u_char is inconvenient. 2002-07-31 13:45:44 +00:00
Mitsuru IWASAKI
b69ed3f4c6 Resolve conflicts arising from the ACPI CA 20020725 import. 2002-07-30 19:35:32 +00:00
Mike Barcroft
49545b3891 Create a new header <machine/_stdint.h> for storing MD parts of
<stdint.h>.  Previously, parts were defined in <machine/ansi.h> and
<machine/limits.h>.  This resulted in two problems:
  (1) Defining macros in <machine/ansi.h> gets in the way of that
      header only defining types.
  (2) Defining C99 limits in <machine/limits.h> adds pollution to
      <limits.h>.
2002-07-29 17:41:23 +00:00
Peter Wemm
e344afe7c9 Move SWTCH_OPTIM_STATS related code out of cpufunc.h. (This sort of stat
gathering is not an x86 cpu feature)
2002-07-21 05:22:16 +00:00
Mark Murray
4c5aee92a7 Beautify. This has the side effect of improving portability and
making lint work cleaner.

Inspired to do this by:	jhb
2002-07-18 15:56:46 +00:00
Poul-Henning Kamp
61658cf6a1 Add initialization code for the AMD Elan sc520 which maps the MMCR
into KVM and sets the i8254 frequency to the correct value.
2002-07-18 12:56:54 +00:00
Mark Murray
8306a37bbb Clean up the syntax WRT semicolons at the end of function-like-macros, and protect GCCisms from non-GNU compilers and lint. 2002-07-17 16:19:37 +00:00
Mark Murray
80a0ead4fe Wrap GNU specific code in ifdefs, and help lint out by providing
some alternative definitions.
2002-07-15 13:29:40 +00:00
Mark Murray
7e622d3c84 Cast to prevent "signed/unsigned comparison" warnings. 2002-07-15 13:27:43 +00:00
Mark Murray
bbcfaa6aa0 Warnings and lint-assisting fixes; mark unused function parameters as
unused; wrap GNUisms (asm code) in appropriate #ifdefs.
2002-07-15 13:25:15 +00:00
Peter Wemm
f1b665c8fe Revive backed out pmap related changes from Feb 2002. The highlights are:
- It actually works this time, honest!
- Fine grained TLB shootdowns for SMP on i386.  IPI's are very expensive,
  so try and optimize things where possible.
- Introduce ranged shootdowns that can be done as a single IPI.
- PG_G support for i386
- Specific-cpu targeted shootdowns.  For example, there is no sense in
  globally purging the TLB cache for where we are stealing a page from
  the local unshared process on the local cpu.  Use pm_active to track
  this.
- Add some instrumentation for the tlb shootdown code.
- Rip out SMP code from <machine/cpufunc.h>
- Try and fix some very bogus PG_G and PG_PS interactions that were bad
  enough to cause vm86 bios calls to break.  vm86 depended on our existing
  bugs and this was the cause of the VESA panics last time.
- Fix the silly one-line error that caused the 'panic: bad pte' last time.
- Fix a couple of other silly one-line errors that should have caused more
  pain than they did.

Some more work is needed:
- pmap_{zero,copy}_page[_idle].  These can be done without IPI's if we
  have a hook in cpu_switch.
- The IPI handlers need some cleanup.  I have a bogus %ds load that can
  be avoided.
- APTD handling is rather bogus and appears to be a large source of
  global TLB IPI shootdowns for no really good reason.

I see speedups of between 1.5% and ~4% on buildworlds in a while 1 loop.
I expect to see a bigger difference when there is significant pageout
activity or the system otherwise has memory shortages.

I have backed out a few optimizations that I had been using over the last
few days in order to be a little more conservative.  I'll revisit these
again over the next few days as the dust settles.

New option:  DISABLE_PG_G - In case I missed something.
2002-07-12 07:56:11 +00:00
Peter Wemm
da035a22eb Bah, move the invltlb counter to C code and hook a debug sysctl onto it. 2002-07-11 08:31:10 +00:00
Matthew Dillon
50b6a55512 Remove the critmode sysctl - the new method for critical_enter/exit (already
the default) is now the only method for i386.

Remove the paraphanalia that supported critmode.  Remove td_critnest, clean
up the assembly, and clean up (mostly remove) the old junk from
cpu_critical_enter() and cpu_critical_exit().
2002-07-10 20:15:58 +00:00
Mike Barcroft
f889202ba4 Remove label_t and physadr, which seem to have never been used in
FreeBSD.

Submitted by:	bde
2002-07-10 15:47:59 +00:00
Mike Barcroft
a6519e64cc Move the type definition of ointhand2_t from i386/include/types.h to
i386/isa/isa_device.h.  This is a more appropriate location and
helps restrict <machine/types.h> to only types that exist on all
platforms.
2002-07-09 01:16:18 +00:00