Commit Graph

1192 Commits

Author SHA1 Message Date
Xin LI
dbd47f1592 Add HWPMC_HOOKS to GENERIC kernels, this makes hwpmc.ko work out
of the box.
2008-07-07 22:55:11 +00:00
Ed Schouten
9d7a57e916 Remove the unused M_MEMDEV from the kernel.
The M_MEMDEV memory allocation pool does not seem to be used. We can
live without it.

Approved by:	philip (mentor)
2008-06-25 07:52:10 +00:00
Ed Schouten
721351876c Remove the unused major/minor numbers from iodev and memdev.
Now that st_rdev is being automatically generated by the kernel, there
is no need to define static major/minor numbers for the iodev and
memdev. We still need the minor numbers for the memdev, however, to
distinguish between /dev/mem and /dev/kmem.

Approved by:	philip (mentor)
2008-06-25 07:45:31 +00:00
Kevin Lo
bda386db88 Return an error code rather than ENXIO when both rman_init() and
rman_manage_region() failed.

Reviewed by:	marcel
2008-06-12 02:28:58 +00:00
Wojciech A. Koszek
b390a5baf8 Fix a typo in a comment. 2008-06-11 20:05:25 +00:00
Marcel Moolenaar
d0767c77a9 Move bm(4) from the sys/conf/NOTES to sys/powerpc/conf/NOTES.
The driver applies to PowerPC only.
2008-06-08 01:58:11 +00:00
Marcel Moolenaar
cf99524aed Add support for the Apple Big Mac (BMAC) Ethernet controller,
found on various Apple G3 models.

Submitted by:	Nathan Whitehorn
2008-06-07 22:58:32 +00:00
Marcel Moolenaar
7d8ccad797 Add support for Apple's Descriptor-Based DMA (DBDMA) engine. The DMA
engine is usful to various  existing drivers, such as ata(4) and scc(4),
and is used bhy the soon to be added bm(4).

Submitted by:	Nathan Whitehorn
2008-06-07 21:56:48 +00:00
Peter Grehan
aecb44179b Add link register to fatal trap printout to better diagnose NULL
function pointer derefs.
2008-06-04 07:32:49 +00:00
Marcel Moolenaar
86c1fb4cde Invalidate the TLB in pmap_cpu_bootstrap(), so that it also happens
on the APs.
2008-05-23 19:16:24 +00:00
Alan Cox
d1fdd63483 The VM system no longer uses setPQL2(). Remove it and its helpers. 2008-05-23 04:03:54 +00:00
David E. O'Brien
99f233296d Use the "options " spelling (vs. "options<TAB>") so that commented lines
line up nicely.
2008-05-21 03:36:53 +00:00
Alan Cox
1ec1304bdb Retire pmap_addr_hint(). It is no longer used. 2008-05-18 04:16:57 +00:00
Attilio Rao
13d4b2b0bc Removed unused assembly offsets for structures digging. 2008-05-16 13:23:47 +00:00
Alan Cox
2d17f90775 Add a stub for pmap_align_superpage() on machines that don't (yet)
implement pmap-level support for superpages.
2008-05-09 23:31:42 +00:00
Marcel Moolenaar
01d8aa0d31 The first argment of mtdbatu or mtibatu is part of the encoding.
It needs to be constant, so eliminate the loop and "hand-unroll".
2008-04-28 03:04:41 +00:00
Marcel Moolenaar
12640815f8 MFp4: SMP support 2008-04-27 22:33:43 +00:00
Marcel Moolenaar
b66bd41daa Eliminate track_modified_needed(), better known as pmap_track_modified()
on other platforms.  We no longer need it because we do not create managed
mappings within the clean submap.

Pointed out by: alc
2008-04-27 21:04:54 +00:00
Marcel Moolenaar
9d5a22b928 MFp4: SMP support 2008-04-27 19:51:34 +00:00
Marcel Moolenaar
5f99a64689 Make sure tmpstk is aligned and make it 8KB in size -- not 8KB+16. 2008-04-27 19:03:14 +00:00
Marcel Moolenaar
6937461ee9 Remove mfsvr():
o  The function is defined unconditionally but depends on SPR_SVR,
   which is defined conditionally.
o  spr.h defines mfspr() and mtspr(), which is no worse to use.
2008-04-27 17:13:22 +00:00
Marcel Moolenaar
4924db935d Take into account the size of the interrupt cell. It's determined
by the parent for interrupt resources. This corrects parsing of
the interrupts property.

With parsing of the property fixed, add all interrupts to the
resource list. Bump the max. number of interrupts from 5 to 6
as scc(4) attached to macio(4) has 6 interrupts (3 per channel).

Submitted by: Nathan Whitehorn <nathanw@uchicago.edu>
2008-04-26 18:35:44 +00:00
Rafal Jaworowski
8b79898eb7 Use RSTCR for resetting the MPC8572 (the old way does not apply).
Obtained from:	Freescale, Semihalf
2008-04-26 18:03:00 +00:00
Rafal Jaworowski
a1cd472a40 Introduce a dedicated file for MPC85xx-specific routines. Move cpu_reset()
there, as it's not relevant to Book-E specification, but is an implementation
detail, directly dependent on the given SoC version.
2008-04-26 17:57:29 +00:00
Rafal Jaworowski
8464af7949 Improve handling of Local Access Windows on MPC85xx systems:
- detect number of LAWs in run time and initalize accordingly
- introduce decode windows target IDs used in MPC8572
- other minor updates

Obtained from:	Freescale, Semihalf
2008-04-26 17:47:28 +00:00
Rafal Jaworowski
653b7b4943 Move System Revision defines to a bit better place, add MPC8572 systems IDs. 2008-04-26 17:39:55 +00:00
Rafal Jaworowski
90a37a5a28 Enable NFSLOCKD for MPC85XX kernel to comply with recent NFS rework. 2008-04-26 17:37:13 +00:00
Jeff Roberson
6c47aaae12 - Add an integer argument to idle to indicate how likely we are to wake
from idle over the next tick.
 - Add a new MD routine, cpu_wake_idle() to wakeup idle threads who are
   suspended in cpu specific states.  This function can fail and cause the
   scheduler to fall back to another mechanism (ipi).
 - Implement support for mwait in cpu_idle() on i386/amd64 machines that
   support it.  mwait is a higher performance way to synchronize cpus
   as compared to hlt & ipis.
 - Allow selecting the idle routine by name via sysctl machdep.idle.  This
   replaces machdep.cpu_idle_hlt.  Only idle routines supported by the
   current machine are permitted.

Sponsored by:	Nokia
2008-04-25 05:18:50 +00:00
Poul-Henning Kamp
9b4a8ab7ba Now that all platforms use genclock, shuffle things around slightly
for better structure.

Much of this is related to <sys/clock.h>, which should really have
been called <sys/calendar.h>, but unless and until we need the name,
the repocopy can wait.

In general the kernel does not know about minutes, hours, days,
timezones, daylight savings time, leap-years and such.  All that
is theoretically a matter for userland only.

Parts of kernel code does however care: badly designed filesystems
store timestamps in local time and RTC chips almost universally
track time in a YY-MM-DD HH:MM:SS format, and sometimes in local
timezone instead of UTC.  For this we have <sys/clock.h>

<sys/time.h> on the other hand, deals with time_t, timeval, timespec
and so on.  These know only seconds and fractions thereof.

Move inittodr() and resettodr() prototypes to <sys/time.h>.
Retain the names as it is one of the few surviving PDP/VAX references.

Move startrtclock() to <machine/clock.h> on relevant platforms, it
is a MD call between machdep.c/clock.c.  Remove references to it
elsewhere.

Remove a lot of unnecessary <sys/clock.h> includes.

Move the machdep.disable_rtc_set sysctl to subr_rtc.c where it belongs.
XXX: should be kern.disable_rtc_set really, it's not MD.
2008-04-22 19:38:30 +00:00
Poul-Henning Kamp
0051271e12 Make genclock standard on all platforms.
Thanks to: grehan & marcel for platform support on ia64 and ppc.
2008-04-21 10:09:55 +00:00
Marcel Moolenaar
25bb36a74e Switch to using genclock. Have nexus double as clock device for
now. While here, add a proper attach() method to nexus.

Requested by: phk
2008-04-21 04:41:37 +00:00
Marcel Moolenaar
5b43c63ded Simplify the pmap_zero_page family of functions by making use of
the fact that we have a 1:1 mapping by virtue of the BATs.
Eliminate the now unused moea_rkva_alloc(), moea_pa_map() and
moea_pa_unmap() functions.

Pointed out by: grehan.
2008-04-17 00:37:40 +00:00
Marcel Moolenaar
014ffa990d Allocate a stack (with optional guard pages) for thread0 and
switch to it before calling mi_startup().
2008-04-16 23:28:12 +00:00
Poul-Henning Kamp
943f6ddd39 Get rid of an empty RTC implementation and hook up genclock instead. 2008-04-13 21:20:26 +00:00
Jeff Roberson
9b33b154b5 - Add the interrupt vector number to intr_event_create so MI code can
lookup hard interrupt events by number.  Ignore the irq# for soft intrs.
 - Add support to cpuset for binding hardware interrupts.  This has the
   side effect of binding any ithread associated with the hard interrupt.
   As per restrictions imposed by MD code we can only bind interrupts to
   a single cpu presently.  Interrupts can be 'unbound' by binding them
   to all cpus.

Reviewed by:	jhb
Sponsored by:	Nokia
2008-04-11 03:26:41 +00:00
Marcel Moolenaar
bf8ad5a884 Fix copy-n-paste typos in free text. 2008-04-10 02:37:26 +00:00
Peter Grehan
2aa95aceb6 Include <sys/types.h> before <sys/systm.h> to get typedefs required
by new atomic.h. Fixes tinderbox LINT build.
2008-04-09 08:50:37 +00:00
Marcel Moolenaar
c563d53362 Reimplement atomic_add, atomic_clear, atomic_set and atomic_subtract
so that all implemented variants have proper prototypes. The 8-bit,
16-bit and 64-bit variants are not implemented.

This really fixes the current build breakages caused by type casting
and struct aliasing rules.
2008-04-09 01:00:35 +00:00
Marcel Moolenaar
ca6f63a1ed Quick fix for the kernel build breakage in netgraph and the
aliasing warning in libthr. A more elaborate fix is in the
works that makes sure that all variants have proper inline
functions with proper types.
2008-04-08 16:34:50 +00:00
John Baldwin
1ee1b68792 Add a MI intr_event_handle() routine for the non-INTR_FILTER case. This
allows all the INTR_FILTER #ifdef's to be removed from the MD interrupt
code.
- Rename the intr_event 'eoi', 'disable', and 'enable' hooks to
  'post_filter', 'pre_ithread', and 'post_ithread' to be less x86-centric.
  Also, add a comment describe what the MI code expects them to do.
- On amd64, i386, and powerpc this is effectively a NOP.
- On arm, don't bother masking the interrupt unless the ithread is
  scheduled in the non-INTR_FILTER case to match what INTR_FILTER did.
  Also, don't bother unmasking the interrupt in the post_filter case if
  we never masked it.  The INTR_FILTER case had been doing this by having
  arm_unmask_irq for the post_filter (formerly 'eoi') hook.
- On ia64, stray interrupts are now masked for the non-INTR_FILTER case.
  They were already masked in the INTR_FILTER case.
- On sparc64, use the a NULL pre_ithread hook and use intr_enable_eoi() for
  both the 'post_filter' and 'post_ithread' hooks to match what the
  non-INTR_FILTER code did.
- On sun4v, retire the ithread wrapper hack by using an appropriate
  'post_ithread' hook instead (it's what 'post_ithread'/'enable' was
  designed to do even in 5.x).

Glanced at by:	piso
Reviewed by:	marius
Requested by:	marius [1], [5]
Tested on:	amd64, i386, arm, sparc64
2008-04-05 19:58:30 +00:00
Marcel Moolenaar
7256cdffc9 Align functions to 16-byte boundaries due to profiling granularity. 2008-04-03 17:40:20 +00:00
Marcel Moolenaar
66821a4c67 Set sc_psim so that the openpic core can correct the off-by-one
error in the number of IRQs that PSIM gives us.
2008-04-03 17:38:27 +00:00
Doug Rabson
fa9d9930ca Add kernel module support for nfslockd and krpc. Use the module system
to detect (or load) kernel NLM support in rpc.lockd. Remove the '-k'
option to rpc.lockd and make kernel NLM the default. A user can still
force the use of the old user NLM by building a kernel without NFSLOCKD
and/or removing the nfslockd.ko module.
2008-03-27 11:54:20 +00:00
John Birrell
e483943791 When building a kernel module, define MAXCPU the same as SMP so
that modules work with and without SMP.
2008-03-27 05:03:26 +00:00
Poul-Henning Kamp
e465985885 The "free-lance" timer in the i8254 is only used for the speaker
these days, so de-generalize the acquire_timer/release_timer api
to just deal with speakers.

The new (optional) MD functions are:
	timer_spkr_acquire()
	timer_spkr_release()
and
	timer_spkr_setfreq()

the last of which configures the timer to generate a tone of a given
frequency, in Hz instead of 1/1193182th of seconds.

Drop entirely timer2 on pc98, it is not used anywhere at all.

Move sysbeep() to kern/tty_cons.c and use the timer_spkr*() if
they exist, and do nothing otherwise.

Remove prototypes and empty acquire-/release-timer() and sysbeep()
functions from the non-beeping archs.

This eliminate the need for the speaker driver to know about
i8254frequency at all.  In theory this makes the speaker driver MI,
contingent on the timer_spkr_*() functions existing but the driver
does not know this yet and still attaches to the ISA bus.

Syscons is more tricky, in one function, sc_tone(), it knows the hz
and things are just fine.

In the other function, sc_bell() it seems to get the period from
the KDMKTONE ioctl in terms if 1/1193182th second, so we hardcode
the 1193182 and leave it at that.  It's probably not important.

Change a few other sysbeep() uses which obviously knew that the
argument was in terms of i8254 frequency, and leave alone those
that look like people thought sysbeep() took frequency in hertz.

This eliminates the knowledge of i8254_freq from all but the actual
clock.c code and the prof_machdep.c on amd64 and i386, where I think
it would be smart to ask for help from the timecounters anyway [TBD].
2008-03-26 20:09:21 +00:00
John Baldwin
6d2d1c044f Simplify the interrupt code a bit:
- Always include the ie_disable and ie_eoi methods in 'struct intr_event'
  and collapse down to one intr_event_create() routine.  The disable and
  eoi hooks simply aren't used currently in the !INTR_FILTER case.
- Expand 'disab' to 'disable' in a few places.
- Use function casts for arm and i386:intr_eoi_src() instead of wrapper
  routines since to trim one extra indirection.

Compiled on:	{arm,amd64,i386,ia64,ppc,sparc64} x {FILTER, !FILTER}
Tested on:	{amd64,i386} x {FILTER, !FILTER}
2008-03-17 22:42:01 +00:00
Marcel Moolenaar
294800e52d Make remote GDB work for AIM processors. For BookE, the kernel
will have a special section, named .PPC.EMB.apuinfo, which will
tell GDB that a BookE processor is targeted and which will
result in GDB using a different register definition. In order
to support remote GDB for BookE, we need the GDB stub in the
kernel look for that section and use the BookE definitions.
2008-03-17 00:46:52 +00:00
Pawel Jakub Dawidek
6eb4157ffc Implement atomic_fetchadd_long() for all architectures and document it.
Reviewed by:	attilio, jhb, jeff, kris (as a part of the uidinfo_waitfree.patch)
2008-03-16 21:20:50 +00:00
Robert Watson
237fdd787b In keeping with style(9)'s recommendations on macros, use a ';'
after each SYSINIT() macro invocation.  This makes a number of
lightweight C parsers much happier with the FreeBSD kernel
source, including cflow's prcc and lxr.

MFC after:	1 month
Discussed with:	imp, rink
2008-03-16 10:58:09 +00:00
John Baldwin
eaf86d1678 Add preliminary support for binding interrupts to CPUs:
- Add a new intr_event method ie_assign_cpu() that is invoked when the MI
  code wishes to bind an interrupt source to an individual CPU.  The MD
  code may reject the binding with an error.  If an assign_cpu function
  is not provided, then the kernel assumes the platform does not support
  binding interrupts to CPUs and fails all requests to do so.
- Bind ithreads to CPUs on their next execution loop once an interrupt
  event is bound to a CPU.  Only shared ithreads are bound.  We currently
  leave private ithreads for drivers using filters + ithreads in the
  INTR_FILTER case unbound.
- A new intr_event_bind() routine is used to bind an interrupt event to
  a CPU.
- Implement binding on amd64 and i386 by way of the existing pic_assign_cpu
  PIC method.
- For x86, provide a 'intr_bind(IRQ, cpu)' wrapper routine that looks up
  an interrupt source and binds its interrupt event to the specified CPU.
  MI code can currently (ab)use this by doing:

	intr_bind(rman_get_start(irq_res), cpu);

  however, I plan to add a truly MI interface (probably a bus_bind_intr(9))
  where the implementation in the x86 nexus(4) driver would end up calling
  intr_bind() internally.

Requested by:	kmacy, gallatin, jeff
Tested on:	{amd64, i386} x {regular, INTR_FILTER}
2008-03-14 19:41:48 +00:00