Commit Graph

890 Commits

Author SHA1 Message Date
grehan
a43623f685 Resurrect kld support. Support ADDR16_HA/LA relocations, and sync
the icache on module load. Requires "-mlongcall" support, in gcc >= 3.3
but needs a bugfix to support gcc arith builtins.
2004-07-17 07:26:32 +00:00
alc
123cfa6b64 Push down the acquisition and release of the page queues lock into
pmap_protect() and pmap_remove().  In general, they require the lock in
order to modify a page's pv list or flags.  In some cases, however,
pmap_protect() can avoid acquiring the lock.
2004-07-15 18:00:43 +00:00
davidxu
0a29616acf Add ptrace_clear_single_step(), alpha already has it for years, the function
will be used by ptrace to clear a thread's single step state.
2004-07-13 07:22:56 +00:00
grehan
60a55c7a06 Rename low-level code ddb -> db. Use KDB instead of DDB.
Fix bug in setup of stack frame where 8 bytes wasn't being
saved for the callee's frame pointer and saved LR.
2004-07-12 22:32:08 +00:00
grehan
94e8bc7955 Bring into KDB new order. 2004-07-12 22:26:20 +00:00
grehan
f05f1634a3 - DDB -> KDB, with kdb routines
- ddb -> db for low-level trapcode
- implement makectx. I think it only matters that the stack is setup
  correctly.
- bring over ddb_trap_glue and rename to db_trap_glue
2004-07-12 22:25:09 +00:00
grehan
a33f31931d No need for ddb option. Never a need for ipkdb option. 2004-07-12 22:22:53 +00:00
grehan
4505b37f92 Catch up with gratuitous ddb -> db renaming 2004-07-12 22:22:09 +00:00
grehan
7ab8fbe2ac Bring into line with KDB. Bring in NetBSD updates for backtrace routine,
although it really needs a decent re-work.
2004-07-12 22:21:34 +00:00
grehan
2312a73897 Remove unused NetBSD code. Bring mem r/w routines into here in line
with sparc64, although keep the size deref checks: they are useful
when accessing PCI space where some devices may not implement byte
access.
2004-07-12 22:20:01 +00:00
grehan
a73dd12638 Gratuitous namechange to avoid low-level association with ddb. 2004-07-12 22:18:02 +00:00
grehan
9006058072 Add prototype for KDB's makectx routine 2004-07-12 22:17:20 +00:00
grehan
e272511bfa Remove old NetBSD-derived unused code and stuff that is now obsolete
due to KDB.
2004-07-12 22:16:50 +00:00
grehan
a9b5e762ae DDB -> KDB, and rename low-level trap handler to avoid name conflict. 2004-07-12 22:16:04 +00:00
grehan
e0f0e7381e kdb.h for PowerPC. Stubs for now. 2004-07-12 22:15:03 +00:00
grehan
a0724f3f5a Add new KDB option, and also drop in long-held fxp/dc eth drivers. 2004-07-12 22:14:21 +00:00
alc
582e79f50a pmap_remove_pages() must not remove wired mappings. Since
pmap_remove_pages() is an optimization, its implementation is optional.

Discussed with:	grehan
2004-07-12 04:40:26 +00:00
grehan
6c7bd73286 - correctly set the return value for the copyin/out fault buffer to 1
so setfault would return correctly when a page fault was invalid
  (e.g. a syscall with a bad parameter).

  This caused an endless DSI loop, seen when running sendmail which
  does a setlogin() call with a NULL pointer.

- introduce KTR_SYSC tracing. expose the syscallnames[] array to
  make the tracing more readable.
2004-07-09 11:00:41 +00:00
grehan
ac03732d3c G4 requires isync after 256Mb ibat/dbat update, G3 requires
isync after each bat update. Otherwise, pmap_bootstrap causes
an ISI exception. A fall-out of loader BAT removal.
2004-07-08 12:47:36 +00:00
grehan
858232d10a - trailing white-space cleanup
- add call to thread_user_enter for P_SA processes before
  trap processing ala all other arches
2004-07-06 11:46:56 +00:00
obrien
f8b4065a75 In the spirit of amd64/include/stdarg.h rev 1.6; add __va_copy
(but keep it conditional on __ISO_C_VISIBLE >= 1999.

Why?  Our out /usr/src/contrib assumes it, and more than a few ports have
an autoconf that looks for __va_copy because it is available on glibc.
It is critical that we use it on PowerPC.  It generally isn't a problem
for i386 and its ilk because those platforms can get away with cheating
the C standard, using a plain assignment.
2004-07-06 07:47:09 +00:00
grehan
77b3bfa737 Add 32-bit framebuffer support. Tested on PearPC at lo-res, too painful
to watch at hi-res.
2004-07-06 03:22:05 +00:00
alc
f2aa52f71a Correct pmap_extract()'s return type. It should be vm_paddr_t, not
vm_offset_t.
2004-07-05 23:08:27 +00:00
jhb
696704716d 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
grehan
e6d783678a Modify loop test when cycling through phys_avail array. It's possible
for an OpenFirmware implementation to have a single memory region
(hello PearPC).
2004-07-01 08:01:49 +00:00
grehan
9583041d2c Catch up with __RMAN_RESOURCE_VISIBLE change 2004-07-01 07:59:08 +00:00
grehan
c157e8aff4 Move soft structs back to C files to avoid exposing rman fields
to clients now that it's protected with __RMAN_RESOURCE_VISIBLE
2004-07-01 07:56:56 +00:00
grehan
976ffba921 Catchup to now-required <sys/module.h> for PowerPC 2004-06-25 13:42:48 +00:00
phk
dfd1f7fd50 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
tjr
48c79c9521 Remove checks for curthread == NULL - it can't happen. 2004-06-03 10:22:47 +00:00
tjr
7a46b27935 Move TDF_DEADLKTREAT into td_pflags (and rename it accordingly) to avoid
having to acquire sched_lock when manipulating it in lockmgr(), uiomove(),
and uiomove_fromphys().

Reviewed by:	jhb
2004-06-03 01:47:37 +00:00
tmm
7b769ce88f Retire cpu_sched_exit(); it is not used any more. 2004-05-26 12:09:39 +00:00
bde
f309a749f5 Moved most of the "MI" definitions and declarations from <machine/profile.h>
to <sys/gmon.h>.  Cleaned them up a little by not attempting to ifdef
for incomplete and out of date support for GUPROF in userland, as in
the sparc64 version.
2004-05-19 15:41:26 +00:00
grehan
2376cee533 trap_pfault() shouldn't be acquiring Giant. Found to blow up
with MUTEX_PROFILING.

Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>
2004-05-19 06:05:42 +00:00
stefanf
e784f59f15 <stdint.h> should define WINT_M{AX,IN} independent from whether WCHAR_MIN is
defined.  Otherwise first including <wchar.h> and then <stdint.h> leads to no
WINT_M{AX,IN} at all.

PR:		64956
Approved by:	das (mentor)
2004-05-18 16:04:57 +00:00
peter
ea4215c521 Make a small revision to the api between the elf linker core and the
elf_reloc() backends for two reasons.  First, to support the possibility
of there being two elf linkers in the kernel (eg: amd64), and second, to
pass the relocbase explicitly (for relocating .o format kld files).
2004-05-16 20:00:28 +00:00
marcel
381147f827 Add option GEOM_GPT. This brings the ability to have a large number of
partitions on a single disk.
2004-05-02 20:40:19 +00:00
obrien
3937b2c0ab Spell Ethernet correctly. 2004-05-02 18:57:29 +00:00
das
0d58ef0153 Hide FLT_EVAL_METHOD and DECIMAL_DIG in pre-C99 compilation
environments.

PR:		63935
Submitted by:	Stefan Farfeleder <stefan@fafoe.narf.at>
2004-04-25 02:36:29 +00:00
grehan
37a55c7ec4 - Catch up with recent ATA changes.
- Remove trailing space in ata_macio.c
2004-04-23 23:39:53 +00:00
grehan
4173466ca4 Include <machine/pte.h> since it has been removed from <machine/param.h>. 2004-04-21 22:59:33 +00:00
grehan
893762b745 <machine/pte.h> has no business being here. Finally exposed by F77 build
failure.
2004-04-21 22:58:39 +00:00
alc
3edd6abfa6 MFamd64
Simplify the sf_buf implementation.  In short, make it a veneer
 over the direct virtual-to-physical mapping.
2004-04-18 08:10:04 +00:00
alc
0f6d9cd13e Remove avail_end. It is not used. 2004-04-11 06:02:24 +00:00
imp
ebf059d1df 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 05:00:01 +00:00
alc
c5bba2b0af Remove avail_start on those platforms that no longer use it. (Only amd64
does anything with it beyond simple initialization.)
2004-04-05 04:08:00 +00:00
alc
19e5eda309 Remove unused arguments from pmap_init(). 2004-04-05 00:37:50 +00:00
alc
1ec4d75266 In some cases, sf_buf_alloc() should sleep with pri PCATCH; in others, it
should not.  Add a new parameter so that the caller can specify which is
the case.

Reported by:	dillon
2004-04-03 09:16:27 +00:00
grehan
d768acf3fe Match the specific MPC106 host bridge PCI ID rather than all
generic host bridges: this avoids a race with the UniNorth
generic match.
2004-04-01 07:34:36 +00:00
grehan
c23e677e84 The end argument to bus_alloc_resource() should have been ~0 and
not ~1, but the call has been switched over to bus_alloc_resource_any()
which has the same effect.

Submitted by: Suleiman Souhlal <refugee@segfaulted.com>
2004-03-31 07:40:46 +00:00
benno
79b30192e5 Replace td2 with td on the assumption that this was a typo. This should at
least unbreak the build.

Pointy hat to: peter
Not tested either by: benno
2004-03-30 13:57:34 +00:00
peter
09ff2f9fe5 Finish tidying up a couple of leftovers from the KSTACK_PAGES stuff. Some
files still #included the opt_ file.  powerpc hadn't been updated yet.
2004-03-29 19:38:05 +00:00
alc
d67b54e11f Add an implementation of uiomove_fromphys() for PowerPC. This
implementation uses the direct virtual-to-physical mapping.

Discussed with:	grehan
2004-03-23 18:26:03 +00:00
marcel
7e4265388d Introduce the cpumask_t type. The purpose of the type is to create a
level of abstraction for any and all CPU mask and CPU bitmap variables
so that platforms have the ability to break free from the hard limit
of 32 CPUs, simply because we don't have more bits in an u_int. Note
that the type is not supposed to solve massive parallelism, where
the number of CPUs can be larger than the width of the widest integral
type. As such, cpumask_t is not supposed to be a compound type. If
such would be necessary in the future, we can deal with the issues
then and there. For now, it can be assumed that the type is integral
and unsigned.

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

Compile-tested on: i386
2004-03-20 20:41:40 +00:00
njl
05a1f56fc9 Convert callers to the new bus_alloc_resource_any(9) API.
Submitted by:	Mark Santcroos <marks@ripe.net>
Reviewed by:	imp, dfr, bde
2004-03-17 17:50:55 +00:00
alc
a2e820d27b Refactor the existing machine-dependent sf_buf_free() into a machine-
dependent function by the same name and a machine-independent function,
sf_buf_mext().  Aside from the virtue of making more of the code machine-
independent, this change also makes the interface more logical.  Before,
sf_buf_free() did more than simply undo an sf_buf_alloc(); it also
unwired and if necessary freed the page.  That is now the purpose of
sf_buf_mext().  Thus, sf_buf_alloc() and sf_buf_free() can now be used
as a general-purpose emphemeral map cache.
2004-03-16 19:04:28 +00:00
scottl
d4f628402f Now that contigfree() does not require Giant, don't grab it in busdma. 2004-03-13 15:42:59 +00:00
alc
f13324f65b Retire pmap_pinit2(). Alpha was the last platform that used it. However,
ever since alpha/alpha/pmap.c revision 1.81 introduced the list allpmaps,
there has been no reason for having this function on Alpha.  Briefly,
when pmap_growkernel() relied upon the list of all processes to find and
update the various pmaps to reflect a growth in the kernel's valid
address space, pmap_init2() served to avoid a race between pmap
initialization and pmap_growkernel().  Specifically, pmap_pinit2() was
responsible for initializing the kernel portions of the pmap and
pmap_pinit2() was called after the process structure contained a pointer
to the new pmap for use by pmap_growkernel().  Thus, an update to the
kernel's address space might be applied to the new pmap unnecessarily,
but an update would never be lost.
2004-03-07 21:06:48 +00:00
le
d23ba57557 Fix syntax errors and wrong function prototypes in several MD header
files when using non-GNUC compilers.

PR:             kern/58515
Submitted by:   Stefan Farfeleder <stefan@fafoe.narf.at>
Approved by:    grog (mentor), obrien
2004-03-05 09:19:59 +00:00
grehan
1ae35df349 Increase kernel VA from 256Mb to 512Mb by shifting the segment used
for user copyinout down to 12, and keeping segments 13/14 for
kernel VA.

It would be nice to have more available, but segments lower than
this are reserved for either memory or 1:1 mapped device i/o,
and seg 15 is OpenFirmware ROM. Also, the effort to keep OpenFirmware
available for callbacks limits the use of VA-mapped segments.
Fortunately UMA_MD_SMALL_ALLOC takes away a lot of VM pressure.

Obtained from:  NetBSD
2004-03-02 06:49:21 +00:00
grehan
256bcf5eae Kernel changes for libthr (and probably libpthread).
include/ucontext.h
 - remove trapframe and switch over to 'generic' description of machine
   state. Include version field to help with future modifications.
   Include floating point and altivec state, and hopefully align
   correctly

powerpc/copyinout.c
 - fill out casuptr() sync primitive, required by kern_umtx.c

powerpc/machdep.c
 - shifted proc0/thread0/pcpu setup to before cninit, since
   syscons -> make_dev -> devlock requires a valid curthread
 - implemented get_mcontext/set_mcontext
 - recast sendsig/sigreturn to use get/set_mcontext and new
   ucontext struct. floating point now saved
 - TODO: save/restore altivec state

powerpc/vm_machdep.c
 - implemented cpu_thread_setup/cpu_set_upcall/cpu_set_upcall_kse
 - eliminated trailing whitespace

Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>, ucontext by grehan
2004-03-02 06:13:09 +00:00
grehan
22b3d270f1 Bring to working PIO state.
- use correct rid when allocating PCI mem resource
 - ATA taskfile registers are indeed spaced 0x10 apart just like
 the Macio ATA cell. Adjust offsets in ATA channel struct.

Tested by:  Suleiman Souhlal <ssouhlal@vt.edu>
2004-02-29 06:01:16 +00:00
grehan
a059eb3a32 Work-in-progress for the 'Kauai' ATA device in Mac notebooks. The
device seems to be the macio ATA cell with a PCI front-end, and
has no relation to PIIX-style ATA/PCI devices.
2004-02-12 09:17:16 +00:00
grehan
5c4201a379 Add sys file required for IEEE fp functions.
Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>
2004-02-12 09:12:11 +00:00
grehan
cabb18f35e Interrupt statistics, vmstat -i now works.
Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>
Slightly modified by: grehan
Derived from:  i386
2004-02-11 13:18:31 +00:00
grehan
158136b65f Clean up header files, which fixes compile warning. 2004-02-11 10:49:30 +00:00
grehan
242aa0b62c - constify devinfo strings to eliminate compile warning
- remove trailing whitespace
2004-02-11 10:15:15 +00:00
grehan
819008de62 - fix compile warnings
- removed obsolete NetBSD-derived ADB conditionals
2004-02-11 08:07:19 +00:00
grehan
769af6f7d4 - fixed trailing whitespace and indentation
- removed unused variable to fix compile warning
2004-02-11 07:58:43 +00:00
grehan
0dfedf3840 Fix compile warning 2004-02-11 07:48:19 +00:00
grehan
171d04f980 - remove trailing whitespace
- fix compile warnings. badaddr() will go to a header file soon.
2004-02-11 07:44:56 +00:00
grehan
cf91052361 Cleaned up param.h:
- culled long-dead #define's
 - segment register defs moved to sr.h
 - NPMAPS moved to pmap.h
 - KERNBASE moved to vmparam.h
 - removed include of <machine/cpu.h> and fixed src files that
   relied on this.

Modifying segment register code no longer causes gcc rebuilds :-)
2004-02-11 07:27:34 +00:00
grehan
2f334f4f85 Invalide pcb's fpu cpu # by setting it to INT_MAX, not NULL. 2004-02-11 07:19:15 +00:00
grehan
54f5cf33fc Add sysctl hw.uma_mdpages to track how many pages have been allocated
by UMA_MD_SMALL_ALLOC
2004-02-11 04:42:48 +00:00
grehan
a32b342ca2 Correctly create interrupt key for PCI, which is the OpenFirmware
pci-hi/med/lo + node 'interrupts' property. This worked by
accident until recent notebooks required correct operation.

Tested by:  Suleiman Souhlal <refugee@segfaulted.com>
2004-02-10 23:57:35 +00:00
grehan
5715cbfdf1 Disable branch-target instruction cache on MPC7457 as outlined
in Motorola processor errata.

Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>
2004-02-09 07:04:01 +00:00
grehan
971910673d Recognize MPC7547 (aka G4+) 2004-02-09 02:25:24 +00:00
grehan
9d3fe37acc Definitions for MPC7457 CPU type and HID0 bits 2004-02-09 00:12:50 +00:00
grehan
447c6cb567 - add a description of what .gdbinit should contain.
- add an option for the output device in the hope that this can
  be made non-blocking at some stage.
- define an alias for the disk device, required by dev/ofw/ofw_disk.c
- shift iobus to 0x9000000 so as not to clash with the OpenFirmware
  entry point of 0x8000400 when address decoding.
- down-tone comments about the disk dev config :-)
2004-02-04 13:23:05 +00:00
grehan
1671fa5447 Remove pmap_pvo_allocf zone alloc function. It was a way of
using the direct-mapping of physmem to force PTE data structures
to be physically addressable so the interrupt-time real-mode
DSI trap handler could perform PTE spills. However, the memory
may have been > 256Mb, which would have caused a BAT spill and
double-interrupt.

The new trap code no longer handles PTE spills, so the requirement
that these pages be direct-mapped no longer applies. The irony is
UMA_MD_SMALL_ALLOC will return direct mappings for these structs :-)
2004-02-04 13:16:21 +00:00
grehan
d0fe48c3c0 Major overhaul of common trap code
- remove unused 601 and tlb exception code
 - remove interrupt-time PTE spill code. The pmap code
   will now take care of pinning kernel PTEs, and there
   are no longer issues about physical mapping of PTE
   data structures
 - All segment registers are switched on kernel entry/exit,
   allowing the kernel to have more virtual space and for
   user virtual space to extend to 4G.
 - The temporary register save area has been shifted from
   unused exception vector space to the per-cpu data area.
   This allows interrupts to be delivered to multiple CPUs
 - ISI traps no longer spill to BAT tables. It is assumed
   that all of kernel instruction memory is pinned.
 - shift from 'ldmw/stmw' instructions to individual register
   loads/stores when saving context. All PPC manuals indicate
   this should be much faster.
 - use '%r' for register names throughout.

TODO: need to test if DSI traps were the result of kernel stack
guard-page hits.

Reworked from:  NetBSD
2004-02-04 13:10:25 +00:00
grehan
a006176fa3 - remove unused trap definitions
- ISI traps are now handled by the generic trap routine
- direct diagnostic traps to DDB if defined
- remove unused asngen pcpu init
2004-02-04 13:00:56 +00:00
grehan
2c94d55cac - Lots more symbols required by the new trap_subr code 2004-02-04 12:58:49 +00:00
grehan
c170060161 - Add definition for GET_CPUINFO, required by new trap_subr code
- garbage-collect unused defs
2004-02-04 12:57:41 +00:00
grehan
6a5c53abb6 Move temporary register save area from exception-vector memory to
per-CPU memory. This allows for interrupt handling on multiple CPUs.

Obtained from: NetBSD
2004-02-04 12:56:15 +00:00
grehan
e0e0aca56a Allow child devices to set the OpenFirmware device node ivar 2004-02-04 12:50:47 +00:00
grehan
953792046b - removed debug printf that was a false positive on non-OpenPIC systems
- white space nits
2004-02-04 04:53:09 +00:00
grehan
fd93cf8ef3 Use device alias "mpic" to locate the macio OpenPIC. This works
on the new 12/15/17" PowerBooks that don't have the "interrupt-controller"
property underneath "/chosen", which was the previous way of
searching.
2004-02-03 08:00:37 +00:00
grehan
e53ff13486 When UMA_MD_SMALL_ALLOC is defined, pmap_kextract will be called
for direct-mapped addresses. Assume that any address less than KVA
is one of these and return it. Also assert that an address is KVA
does have a valid mapping - callers of pmap_kextract don't check
the return value, since they assume that they have a valid virtual
address.
2004-01-29 00:45:41 +00:00
grehan
686d1f228e Implement UMA_MD_SMALL_ALLOC, since the BAT registers allow direct
addressing of memory. Makes a substantial improvement for apps that
stress the limited amount of KVM on PPC (e.g. untarring the ports tree).

uma_machdep.c stolen from amd64/ia64.
2004-01-29 00:32:22 +00:00
jeff
8a4acc2156 - Recruit some new ULE users by making it the default scheduler in GENERIC.
ULE will be in a probationary period to determine whether it will be left
   as the default in 5.3 which would likely mean the rest of the 5.x series.
2004-01-24 21:38:52 +00:00
nectar
70865363ca Add PFIL_HOOKS to the GENERIC kernel configuration, primarily so
that one can load the IPFilter module (which requires PFIL_HOOKS).

Requested by:	Many, for over a year
2004-01-24 14:59:51 +00:00
grehan
c947492259 Add syscons options and enable USB, since there is no conflict between
the OpenFirmware console and the syscons console when using a USB
keyboard.
2004-01-21 05:22:53 +00:00
grehan
5f3a308886 - Catch up with panic __LINE__/__FILE__ changes by moving panic calls
out of asm.
- remove some long-dead code from machdep.c
2004-01-21 05:18:08 +00:00
grehan
ad056eebb8 A syscons implementation using the 8-bit framebuffer set up by
OpenFirmware. Not at all optimized, but provides a PC-style
user-experience.

Tested on revA imac, B&W G3, 2k iBook, and G4 eMac.
2004-01-21 05:16:23 +00:00
grehan
4ddbc20ea6 Update 128-bit long double constants to match what is expected
by libc
2004-01-21 04:56:39 +00:00
grehan
8e1d4bce98 Catch up with ATA UMA changes 2004-01-15 23:52:32 +00:00
grehan
eb45b910df Use a device identify entry point to attach to nexus, since the
nexus code no longer searches for interrupt controllers.
2004-01-13 11:25:40 +00:00
grehan
f31f435513 Make the OpenPic driver bus-independent, with attachments for
the MacIO chip and PSIM's IOBus. Bus-specific drivers should
use the identify method to attach themselves to nexus so
interrupt can be allocated before the h/w is probed. The
'early attach' routine in openpic is used for this stage
of boot. When h/w is probed, the openpic can be attached
properly. It will enable interrupts allocated prior to
this.
2004-01-13 11:24:36 +00:00
grehan
5e6c3e74a5 Remove hard-coded knowledge of specific OFW devices. Use bus_generic_probe
and add_child entry point to allow devices to use the identify
method to add themselves if need be (e.g. openpic, syscons).
Export interrupt-controller-add routine for extern int cntlr drivers.
Eliminate recursive OFW device-tree walk and only iterate the
top-level ala sparc64. Allow child devices to set the device
type with write_ivars.

Step 1 of many in removing the hard-dependency on OpenFirmware.
2004-01-13 11:20:52 +00:00
grehan
4208dc0071 Catch up with ATA changes by including <sys/sema.h> 2004-01-13 10:54:35 +00:00
davidxu
f39653dda8 Make sigaltstack as per-threaded, because per-process sigaltstack state
is useless for threaded programs, multiple threads can not share same
stack.
The alternative signal stack is private for thread, no lock is needed,
the orignal P_ALTSTACK is now moved into td_pflags and renamed to
TDP_ALTSTACK.
For single thread or Linux clone() based threaded program, there is no
semantic changed, because those programs only have one kernel thread
in every process.

Reviewed by: deischen, dfr
2004-01-03 02:02:26 +00:00
silby
a7d8091ae5 Track three new sendfile-related statistics:
- The number of times sendfile had to do disk I/O
- The number of times sfbuf allocation failed
- The number of times sfbuf allocation had to wait
2003-12-28 08:57:09 +00:00
silby
a58bddbe36 Move the declaration of sfbufspeak and sfbufsused to mbuf.h,
and use imax instead of max, as sfbufspeak and sfbufsused
are signed.

Submitted by:   bde
2003-12-28 01:43:22 +00:00
silby
5c5418dd6e Track current and peak sfbuf usage, export the values via sysctl. 2003-12-27 07:52:47 +00:00
peter
daf42805ba GC the unused <machine/kse.h> file. 2003-12-24 00:51:30 +00:00
peter
998b79089f Add an additional field to the elf brandinfo structure to support
quicker exec-time replacement of the elf interpreter on an emulation
environment where an entire /compat/* tree isn't really warranted.
2003-12-23 02:42:39 +00:00
grehan
949de4b3b4 Disable the per-vm_page PTE cache. This was not being invalidated
correctly, resulting in the dreaded "vm_pageout_flush: partially
invalid page" panic. The caching issue will be revisited in the
future, but opt for safety over performance in the meantime.

Tested by: gallatin
2003-12-16 03:55:57 +00:00
grehan
f634df25eb imac revA-D and beige G3 OpenFirmware uses the "ide" string for
ATA drives.
2003-12-10 08:58:48 +00:00
grehan
012e342c0d - removed obsolete ppc_exit/ppc_boot functions
- OpenFirmware returns overlapping memory regions. Use a simple
  brute force algorithm to merge these into non-overlapping
  regions. This fixes bugs in reporting of available memory
  and also prevents pages from being added twice in the VM system.
2003-12-10 08:55:53 +00:00
gallatin
188f1f0503 Remove redundant declaration of ddb_trap 2003-12-09 15:46:33 +00:00
gallatin
367fac1d75 pmap_query_bit() should return false if the bit is not set.
Reviewed by: grehan
2003-12-09 14:47:33 +00:00
gallatin
f7822af269 Use the "shut-down" and "reset-all" Forth procedures to halt and
reboot, as calling OF_exit() just hangs a mac.

FreeBSD on my G4 800Mhz mac behaves identically to OSX for halt
and reboot now.

Reviewed by: grehan  (who also supplied the concept and sample code)
2003-12-09 14:45:39 +00:00
gallatin
d10b5c1ba5 Make breakpoint() actually break into ddb.
Reviewed by: grehan
2003-12-09 13:37:31 +00:00
jhb
bbe7d290ea - Split cpu_mp_probe() into two parts. cpu_mp_setmaxid() is still called
very early (SI_SUB_TUNABLES - 1) and is responsible for setting mp_maxid.
  cpu_mp_probe() is now called at SI_SUB_CPU and determines if SMP is
  actually present and sets mp_ncpus and all_cpus.  Splitting these up
  allows an architecture to probe CPUs later than SI_SUB_TUNABLES by just
  setting mp_maxid to MAXCPU in cpu_mp_setmaxid().  This could allow the
  CPU probing code to live in a module, for example, since modules
  sysinit's in modules cannot be invoked prior to SI_SUB_KLD.  This is
  needed to re-enable the ACPI module on i386.
- For the alpha SMP probing code, use LOCATE_PCS() instead of duplicating
  its contents in a few places.  Also, add a smp_cpu_enabled() function
  to avoid duplicating some code.  There is room for further code
  reduction later since much of this code is also present in cpu_mp_start().
- All archs besides i386 still set mp_maxid to the same values they set it
  to before this change.  i386 now sets mp_maxid to MAXCPU.

Tested on:	alpha, amd64, i386, ia64, sparc64
Approved by:	re (scottl)
2003-11-21 22:23:26 +00:00
peter
d29883b254 Widen the enable/disable helper function's argument in line with the
ithread_create() changes etc.  This should be mostly a NOP.
2003-11-17 06:10:15 +00:00
alc
aea6af995e - Remove unnecessary synchronization from sf_buf_init(). (There is only
one active CPU when sf_buf_init() is performed.)
2003-11-16 23:40:06 +00:00
alc
74614e7f63 - 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
marcel
21340f30b3 Change the clear_ret argument of get_mcontext() to be a flags argument.
Since all callers either passed 0 or 1 for clear_ret, define bit 0 in
the flags for use as clear_ret. Reserve bits 1, 2 and 3 for use by MI
code for possible (but unlikely) future use. The remaining bits are for
use by MD code.

This change is triggered by a need on ia64 to have another knob for
get_mcontext().
2003-11-09 20:31:04 +00:00
peter
05de20ae7a Add a stub cpu_idle() function for sparc64, alpha, powerpc. This is a
MI declared function so it should be everywhere.
2003-10-19 02:36:07 +00:00
bms
d8d01a1fa7 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
alc
b1691aebe4 Migrate pmap_prefault() into the machine-independent virtual memory layer.
A small helper function pmap_is_prefaultable() is added.  This function
encapsulate the few lines of pmap_prefault() that actually vary from
machine to machine.  Note: pmap_is_prefaultable() and pmap_mincore() have
much in common.  Going forward, it's worth considering their merger.
2003-10-03 22:46:53 +00:00
grehan
de2a476e05 DELAY must be a routine, not a macro definition. 2003-09-26 09:02:24 +00:00
peter
8ecb3577d8 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
grehan
10d779bf64 _MACHINE/_MACHINE_ARCH shouldn't be quoted. Found by trying to
compile the isp driver.
2003-09-24 01:45:07 +00:00
grehan
231937b5d7 Soften assert in pmap_remove_all.
Introduct pmap_extract_and_hold.

Stolen from: sparc64
2003-09-22 11:59:05 +00:00
grehan
a7a354cc2b ATAng requires <sys/taskqueue.h> 2003-09-22 11:55:02 +00:00
kan
2a3875111d Standardize idempotentcy ifdefs. Consistently use _MACHINE_VARARGS_H_
symbol.
2003-09-01 03:01:45 +00:00
alc
8b0114def1 Migrate the sf_buf allocator that is used by sendfile(2) and zero-copy
sockets into machine-dependent files.  The rationale for this
migration is illustrated by the modified amd64 allocator.  It uses the
amd64's direct map to avoid emphemeral mappings in the kernel's
address space.  On an SMP, the emphemeral mappings result in an IPI
for TLB shootdown for each transmitted page.  Yuck.

Maintainers of other 64-bit platforms with direct maps should be able
to use the amd64 allocator as a reference implementation.
2003-08-29 20:04:10 +00:00
imp
18625a197e Prefer new location of pci include files (which have only been in the
tree for two or more years now), except in a few places where there's
code to be compatible with older versions of FreeBSD.
2003-08-22 07:39:05 +00:00
gordon
2456eb188f Fixup the ELF branding information to point to the new home of rtld. 2003-08-17 08:08:38 +00:00
marcel
4194d813c1 In vm_thread_swap{in|out}(), remove the alpha specific conditional
compilation and replace it with a call to cpu_thread_swap{in|out}().
This allows us to add similar code on ia64 without cluttering the
code even more.
2003-08-16 23:15:15 +00:00
marcel
c1d4b42a69 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
grehan
e6a3a6744e Update powerpc to use the (old thread,new thread) calling convention
for cpu_throw() and cpu_switch().
2003-08-14 03:56:24 +00:00
imp
3bc162cfa3 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
jhb
e4889cd470 - 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
obrien
3882b9d783 Deal with GCC annoyingly defining _BIG_ENDIAN. 2003-08-03 07:53:50 +00:00
alc
c38b9c732f Use kmem_alloc_nofault() rather than kmem_alloc_pageable() in pmap_mapdev().
See revision 1.140 of kern/sys_pipe.c for a detailed rationale.

Submitted by:	tegge
2003-08-02 19:26:09 +00:00
bmilekic
7246ed5007 Make sure that when the PV ENTRY zone is created in pmap, that it's
created not only with UMA_ZONE_VM but also with UMA_ZONE_NOFREE.  In
the i386 case in particular, the pmap code would hook a special
page allocation routine that allocated from kernel_map and not kmem_map,
and so when/if the pageout daemon drained the zones, it could actually
push out slabs from the PV ENTRY zone but call UMA's default page_free,
which resulted in pages allocated from kernel_map being freed to
kmem_map; bad.  kmem_free() ignores the return value of the
vm_map_delete and just returns.  I'm not sure what the exact
repercussions could be, but it doesn't look good.

In the PAE case on i386, we also set-up a zone in pmap, so be
conservative for now and make that zone also ZONE_NOFREE and
ZONE_VM.  Do this for the pmap zones for the other archs too,
although in some cases it may not be entirely necessarily.  We'd
rather be safe than sorry at this point.

Perhaps all UMA_ZONE_VM zones should by default be also
UMA_ZONE_NOFREE?

May fix some of silby's crashes on the PV ENTRY zone.
2003-07-31 03:39:51 +00:00
peter
1c887bc40f Deal with 'options KSTACK_PAGES' being a global option. 2003-07-31 01:31:32 +00:00
alc
77428ed1a0 Make pmap_pvo_allocf() callable without Giant. 2003-07-27 20:57:53 +00:00
mux
4e543dc212 - 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
davidxu
720b97177f Rename thread_siginfo to cpu_thread_siginfo.
Suggested by: jhb
2003-07-15 00:11:04 +00:00
alc
0699f7e17f Background: pmap_object_init_pt() premaps the pages of a object in
order to avoid the overhead of later page faults.  In general, it
implements two cases: one for vnode-backed objects and one for
device-backed objects.  Only the device-backed case is really
machine-dependent, belonging in the pmap.

This commit moves the vnode-backed case into the (relatively) new
function vm_map_pmap_enter().  On amd64 and i386, this commit only
amounts to code rearrangement.  On alpha and ia64, the new machine
independent (MI) implementation of the vnode case is smaller and more
efficient than their pmap-based implementations.  (The MI
implementation takes advantage of the fact that objects in -CURRENT
are ordered collections of pages.)  On sparc64, pmap_object_init_pt()
hadn't (yet) been implemented.
2003-07-03 20:18:02 +00:00
scottl
4d495abb9d 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
alc
44509f207f - Export pmap_enter_quick() to the MI VM. This will permit the
implementation of a largely MI pmap_object_init_pt() for vnode-backed
   objects.  pmap_enter_quick() is implemented via pmap_enter() on sparc64
   and powerpc.
 - Correct a mismatch between pmap_object_init_pt()'s prototype and its
   various implementations.  (I plan to keep pmap_object_init_pt() as
   the MD hook for device-backed objects on i386 and amd64.)
 - Correct an error in ia64's pmap_enter_quick() and adjust its interface
   to match the other versions.  Discussed with: marcel
2003-06-29 21:20:04 +00:00
grehan
ebb4fc782d Allow the interrupt controller to be probed - this picks up the
Heathrow PIC, while not affecting the OpenPIC.
2003-06-29 02:05:19 +00:00
grehan
8b71771e40 A module to handle the interrupt controller on Heathrow/Paddington
MacIO chips, found on older Mac G3's.
2003-06-28 08:52:49 +00:00
grehan
f852fade10 A module for the Motorola MPC106 system controller aka 'Grackle'
found on older Mac G3's.
2003-06-28 08:51:22 +00:00
davidxu
bb3ae5a363 Add a machine depended function thread_siginfo, SA signal code
will use the function to construct a siginfo structure and use
the result to export to userland.

Reviewed by: julian
2003-06-28 06:34:08 +00:00