Commit Graph

1098 Commits

Author SHA1 Message Date
Peter Wemm
4295ddf26f MFi386 pci_bus.c 1.102 legacyvar.h 1.4: rename nexus_pcib to legacy_pcib
However, leave legacy_pcib_route_interrupt() since there is no pcibios to
call.
2003-09-23 00:03:44 +00:00
Peter Wemm
da87d7e10d Move basemem variable into global scope so that the MP startup code can
refer to it for looking for tables.
2003-09-22 23:33:29 +00:00
Peter Wemm
24789c549a Increase the default data size limit from 512MB to 8GB. Increase default
stack limit from 64MB to 512MB.
2003-09-22 23:21:39 +00:00
Peter Wemm
d79ddbf5de MFi386 machdep.c rev 1.201, clock.c 1.201, clock.h 1.45 by phk: Dont
initialize a TSC timecounter until we know if it is broke or not.

XXX I think there is a bug in the i386 code here.  init_TSC_tc() comes
after:
  if (statclock_disable)
    return;

ie: if you turn off the statclock interrupt, you dont get the TSC either.
2003-09-22 23:02:24 +00:00
Peter Wemm
13a27f2962 MFi386 rev 1.25 by jhb: add new MSR's and some missing older ones and
APICBASE MSR constants.
2003-09-22 22:51:46 +00:00
Peter Wemm
d10e66f073 MFi386 rev 1.37: constant-friendly bswap macros 2003-09-22 22:37:49 +00:00
Peter Wemm
5bc82d1ce1 MFi386: pci_cfgreg.h rev 1.10 by jhb/des/njl. Fix CONF1_ENABLE_MSK. 2003-09-22 22:21:21 +00:00
Peter Wemm
8848ad863b MFi386 by jhb: add acpi_SetDefaultIntrModel(); 2003-09-22 22:12:46 +00:00
Peter Wemm
76caec589f MFi386 by jhb: use symbolic constants for the IDT entries. 2003-09-22 22:09:02 +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
f03cb48d41 Fix a typo. 2003-09-10 01:11:58 +00:00
Peter Wemm
292bbfd103 Argh. This file was completely out of sync with mcontext/trapframe. 2003-09-08 18:31:48 +00:00
Peter Wemm
7fe089a006 Hmm. Two copies of the mcontext... 2003-09-08 18:28:41 +00:00
Peter Wemm
c896a8adbf Oops. sizeof(long) = 8, not 4. Get the fxsave buffer inside mcontext
the right size.  I'm planning on *possibly* stealing the two 'spare'
variables on either side for botched alignment correction.
2003-09-05 20:47:27 +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
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
John Baldwin
3bdbd658f1 - Since td_critnest is now initialized in MI code, it doesn't have to be
set in cpu_critical_fork_exit() anymore.
- As far as I can tell, cpu_thread_link() has never been used, not even
  when it was originally added, so remove it.
2003-08-04 20:32:45 +00:00
Peter Wemm
59cc2230c6 Fix a dumbass mistake. I had the 'set' and 'get' reversed in the
fpsetround/fpgetround macro pairs.
2003-08-02 00:26:30 +00:00
Peter Wemm
3950c40739 KSTACK_PAGES is a global option. 2003-07-31 01:27:18 +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
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
5b9f8ddbbd Go back to 64 bit precision for fadd/fsub/fsqrt etc. This is because on
AMD64, gcc (and the ABI) expects the x87 unit to be running in 80/64
mode (not 64/53) so that it can use it for 'long double' operations.  It
takes the expected precision differences into account when generating
code.
2003-07-22 06:50:34 +00:00
Peter Wemm
76537e43f5 Extend the machine/ieeefp.h that was inherited from i386 to support
the SSE mxcsr register as well.  Since gcc will intermix SSE2 and x87
FP code, the fpsetround() etc mode had better be the same.

There are hooks to enable these inlines to be instantiated inside libc
for non-gcc or C++ callers. (g++ doesn't like the inlines that tried
to extract an integer and convert it to an enum).
2003-07-22 06:44:54 +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
Peter Wemm
bf8ca114e2 Fix the VADDR() macros to use either KVADDR() or UVADDR(), depending
on the implied sign extension.  The single unified VADDR() macro was
not able to avoid sign extending the VM_MAXUSER_ADDRESS/USRSTACK values.
Be explicit about UVADDR() (positive address space) and KVADDR()
(kernel negative address space) to make mistakes show up more
spectacularly.

Increase user VM space from 1/2TB (512GB) to 128TB.
2003-07-09 23:04:23 +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
Hidetoshi Shimokawa
e07324646e Move KERNBASE to -2GB.
Currently, we cannot increase KVA more than 2GB.
2003-06-22 13:02:45 +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
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
Peter Wemm
7fc03ef474 Fix ALIGNED_POINTER(). sizeof((u_int32_t)) is not legal C. 2003-06-04 02:15:13 +00:00
Peter Wemm
c35518b4ed Make this more compatable with libc_r. Make the internal types for storing
registers an array of longs rather than int.
2003-06-02 21:49:35 +00:00
David E. O'Brien
9676a785e7 Use __FBSDID(). 2003-06-02 06:43:15 +00:00
Peter Wemm
193b147c05 MFi386: i386/include/asm.h rev 1.11: Do not abuse ##. 2003-06-02 05:59:35 +00:00
David E. O'Brien
69bb404192 Use C99 compatable asm statements. 2003-06-02 00:29:35 +00:00
Peter Wemm
cc71eb5e10 With the help of jhb, fix the ACPI_ACQUIRE_GLOBAL_LOCK() macros and
port to amd64 after repocopy.

Approved by: re (amd64/*)
2003-05-31 06:43:55 +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
Peter Wemm
5feb2148ba Initial port to amd64 after repocopy from i386. Note that the
disassembler has not been updated yet, and will do some very strange
things.  It does tracebacks (without function arguments due to regparm
calling conventions) if -fno-omit-frame-pointer is used (to come later).
This achieves basic functionality.

Approved by:	re (amd64/* blanket)
2003-05-30 01:01:07 +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
Peter Wemm
3ebd9b48ce Stop profiled libc from exploding, matching gcc's generated code.
Approved by: re (amd64/* blanket)
2003-05-24 18:24:03 +00:00
Peter Wemm
d9cd1af4aa Typo fix. oops.
Submitted by:  jmallett
Approved by:   re (blanket amd64/*)
2003-05-23 06:36:46 +00:00
Peter Wemm
cbd667fa2f Update comments. Note that the kernel is at -1GB, not -2GB as erroniously
implied by the previous commit.  KVM is still only 1GB until
pmap_growkernel() learns about the extra page table level.

Approved by:  re (blanket)
2003-05-23 06:35:45 +00:00
Peter Wemm
f229f5cf85 As suggested by the gdb folks, pad the 'struct fpreg' to a full 512 bytes
to match the native fxsave/fxrstor object size since thats apparently what
the Linux/NetBSD folks do.
2003-05-23 06:31:56 +00:00
Peter Wemm
3c9a3c9ca3 Major pmap rework to take advantage of the larger address space on amd64
systems.  Of note:
- Implement a direct mapped region using 2MB pages.  This eliminates the
  need for temporary mappings when getting ptes.  This supports up to
  512GB of physical memory for now.  This should be enough for a while.
- Implement a 4-tier page table system.  Most of the infrastructure is
  there for 128TB of userland virtual address space, but only 512GB is
  presently enabled due to a mystery bug somewhere.  The design of this
  was heavily inspired by the alpha pmap.c.
- The kernel is moved into the negative address space(!).
- The kernel has 2GB of KVM available.
- Provide a uma memory allocator to use the direct map region to take
  advantage of the 2MB TLBs.
- Fixed some assumptions in the bus_space macros about the ability
  to fit virtual addresses in an 'int'.

Notable missing things:
- pmap_growkernel() should be able to grow to 512GB of KVM by expanding
  downwards below kernbase.  The kernel must be at the top 2GB of the
  negative address space because of gcc code generation strategies.
- need to fix the >512GB user vm code.

Approved by:	re (blanket)
2003-05-23 05:04:54 +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
Peter Wemm
c0a54ff621 Collect the nastiness for preserving the kernel MSR_GSBASE around the
load_gs() calls into a single place that is less likely to go wrong.

Eliminate the per-process context switching of MSR_GSBASE, because it
should be constant for a single cpu.  Instead, save/restore it during
the loading of the new %gs selector for the new process.

Approved by:	re (amd64/* blanket)
2003-05-15 00:23:40 +00:00
Peter Wemm
be52ef1399 Use compile time constants for things like PTmap[] etc because they're
about to move outside of the +/- 2GB range

Suggested by:	jake
Approved by:	re (amd64/* blanket)
2003-05-15 00:20:17 +00:00
Peter Wemm
d85631c4ac Add BASIC i386 binary support for the amd64 kernel. This is largely
stolen from the ia64/ia32 code (indeed there was a repocopy), but I've
redone the MD parts and added and fixed a few essential syscalls.  It
is sufficient to run i386 binaries like /bin/ls, /usr/bin/id (dynamic)
and p4.  The ia64 code has not implemented signal delivery, so I had
to do that.

Before you say it, yes, this does need to go in a common place.  But
we're in a freeze at the moment and I didn't want to risk breaking ia64.
I will sort this out after the freeze so that the common code is in a
common place.

On the AMD64 side, this required adding segment selector context switch
support and some other support infrastructure.  The %fs/%gs etc code
is hairy because loading %gs will clobber the kernel's current MSR_GSBASE
setting.  The segment selectors are not used by the kernel, so they're only
changed at context switch time or when changing modes.  This still needs
to be optimized.

Approved by:	re (amd64/* blanket)
2003-05-14 04:10:49 +00:00
Peter Wemm
0fe93e7480 For the page fault handler, save %cr2 in the outer trap handler so that
we do not have to run so long with interrupts disabled.  This involved
creating tf_addr in the trapframe.  Reorganize the trap stubs so that
they consistently reserve the stack space and initialize any missing
bits.

Approved by:	re (amd64 stuff)
2003-05-12 18:33:19 +00:00
Peter Wemm
0f6241620b Sync ucontext with reality. The struct trapframe changes need to be
reflected here.

Approved by:	re (blanket amd64/*)
2003-05-12 18:23:04 +00:00
Peter Wemm
e9b193dc33 AMD64 physical space is much larger than i386, de-i386 the bus_space and
bus_dma MD code for AMD64.  (And a trivial ifdef update in dev/kbd because
of this).  More updates are needed here to take advantage of the 64 bit
instructions.

Approved by:	re (blanket amd64/*)
2003-05-12 02:44:37 +00:00
Peter Wemm
bf1e897425 Give a %fs and %gs to userland. Use swapgs to obtain the kernel %GS.base
value on entry and exit.  This isn't as easy as it sounds because when
we recursively trap or interrupt, we have to avoid duplicating the
swapgs instruction or we end up back with the userland %gs.  I implemented
this by testing TF_CS to see if we're coming from supervisor mode
already, and check for returning to supervisor. To avoid a race with
interrupts in the brief period after beginning executing the handler and
before the swapgs, convert all trap gates to interrupt gates, and reenable
interrupts immediately after the swapgs.  I am not happy with this.
There are other possible ways to do this that should be investigated.
(eg: storing the GS.base MSR value in the trapframe)

Add some sysarch functions to let the userland code get to this.

Approved by:	re (blanket amd64/*)
2003-05-12 02:37:29 +00:00
Peter Wemm
eeee69d45c Make atdevbase long for the KERNBASE > 4GB case
Approved by: re (amd64/* blanket)
2003-05-11 22:53:43 +00:00
Peter Wemm
0fe0f2515b Provide a fake varargs implementation for lint's benefit. This way
it can see the intent of the va_* macros, even though it cannot work.

Approved by:	re (blanket amd64/*)
2003-05-10 00:55:15 +00:00
Peter Wemm
e1ef71de2b Remove _ARCH_INDIRECT ifdefs. They existed for lib/msun/* on i386, which
could use different versions of the math code depending on whether there
was real floating point hardware or math emulation.  Since the fpu is
part of the core specification on amd64, there is no need for this here.

Approved by:	re (blanket amd64/*)
2003-05-10 00:53:34 +00:00
Peter Wemm
2e4f687a1d bcopyb() isn't used on amd64 kernel (it only exists for i386/pcvt)
Approved by:	re (blanket amd64/*)
2003-05-10 00:51:29 +00:00
Peter Wemm
395e65aa29 Include the MXCSR initial values, based on the AMD docs. This file
should really be renamed to fpu.h and npx.c to fpu.c since its part of
the core architecture on amd64 systems, not an isa 'numeric processor
extension'.
2003-05-09 18:28:05 +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
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
afa8862328 Commit MD parts of a loosely functional AMD64 port. This is based on
a heavily stripped down FreeBSD/i386 (brutally stripped down actually) to
attempt to get a stable base to start from.  There is a lot missing still.
Worth noting:
- The kernel runs at 1GB in order to cheat with the pmap code.  pmap uses
  a variation of the PAE code in order to avoid having to worry about 4
  levels of page tables yet.
- It boots in 64 bit "long mode" with a tiny trampoline embedded in the
  i386 loader.  This simplifies locore.s greatly.
- There are still quite a few fragments of i386-specific code that have
  not been translated yet, and some that I cheated and wrote dumb C
  versions of (bcopy etc).
- It has both int 0x80 for syscalls (but using registers for argument
  passing, as is native on the amd64 ABI), and the 'syscall' instruction
  for syscalls.  int 0x80 preserves all registers, 'syscall' does not.
- I have tried to minimize looking at the NetBSD code, except in a couple
  of places (eg: to find which register they use to replace the trashed
  %rcx register in the syscall instruction).  As a result, there is not a
  lot of similarity.  I did look at NetBSD a few times while debugging to
  get some ideas about what I might have done wrong in my first attempt.
2003-05-01 01:05:25 +00:00
Peter Wemm
1e57e9eba3 Repocopy from x86_64/... to amd64/...
Rename visible x86_64 references to amd64.
Kill MID_MACHINE, its a.out specific, the only platform that supports it
is i386.  All of the other platforms should remove it too.
2003-04-30 22:51:59 +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
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
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
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
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
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
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
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
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
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