Commit Graph

1362 Commits

Author SHA1 Message Date
Alan Cox
c640357f04 Push down the implementation of PCPU_LAZY_INC() into the machine-dependent
header file.  Reimplement PCPU_LAZY_INC() on amd64 and i386 making it
atomic with respect to interrupts.

Reviewed by: bde, jhb
2007-03-11 05:54:29 +00:00
Mohan Srinivasan
f9bb753844 Over NFS, an open() call could result in multiple over-the-wire
GETATTRs being generated - one from lookup()/namei() and the other
from nfs_open() (for cto consistency). This change eliminates the
GETATTR in nfs_open() if an otw GETATTR was done from the namei()
path. Instead of extending the vop interface, we timestamp each attr
load, and use this to detect whether a GETATTR was done from namei()
for this syscall. Introduces a thread-local variable that counts the
syscalls made by the thread and uses <pid, tid, thread syscalls> as
the attrload timestamp. Thanks to jhb@ and peter@ for a discussion on
thread state that could be used as the timestamp with minimal overhead.
2007-03-09 04:02:38 +00:00
Marius Strobl
33368e9fe8 Rototill the sparc64 nexus(4) (actually this brings in the code the
sun4v nexus(4) in turn is based on):
o Change nexus(4) to manage the resources of its children so the
  respective device drivers don't need to figure them out of OFW
  themselves.
o Change nexus(4) to provide the ofw_bus KOBJ interface instead of
  using IVARs for supplying the OFW node and the subset of standard
  properties of its children. Together with the previous change this
  also allows to fully take advantage of newbus in that drivers like
  fhc(4), which attach on multiple parent busses, no longer require
  different bus front-ends as obtaining the OFW node and properties
  as well as resource allocation works the same for all supported
  busses. As such this change also is part 4/4 of allowing creator(4)
  to work in USIII-based machines as it allows this driver to attach
  on both nexus(4) and upa(4). On the other hand removing these IVARs
  breaks API compatibility with the powerpc nexus(4) but which isn't
  that bad as a) sparc64 currently doesn't share any device driver
  hanging off of nexus(4) with powerpc and b) they were no longer
  compatible regarding OFW-related extensions at the pci(4) level
  since quite some time.
o Provide bus_get_dma_tag methods in nexus(4) and its children in
  order to handle DMA tags in a hierarchical way and get rid of the
  sparc64_root_dma_tag kludge. Together with the previous two items
  this changes also allows to completely get rid of the nexus(4)
  IVAR interface. It also includes:
  - pushing the constraints previously specified by the nexus_dmatag
    down into the DMA tags of psycho(4) and sbus(4) as it's their
    IOMMUs which induce these restrictions (and nothing at the
    nexus(4) or anything that would warrant specifying them there),
  - fixing some obviously wrong constraints of the psycho(4) and
    sbus(4) DMA tags, which happened to not actually be used with
    the sparc64_root_dma_tag kludge in place and therefore didn't
    cause problems so far,
  - replacing magic constants for constraints with macros as far
    as it is obvious as to where they come from.
  This doesn't include taking advantage of the newbus way to get
  the parent DMA tags implemented by this change in order to divorce
  the IOTSBs of the PCI and SBus IOMMUs or for implementing the
  workaround for the DMA sync bug in Sabre (and Tomatillo) bridges,
  yet, though.
o Get rid of the notion that nexus(4) (mostly) reflects an UPA bus
  by replacing ofw_upa.h and with ofw_nexus.h (which was repo-copied
  from ofw_upa.h) and renaming its content, which actually applies to
  all of Fireplane/Safari, JBus and UPA (in the host bus case), as
  appropriate.
o Just use M_DEVBUF instead of a separate M_NEXUS malloc type for
  allocating the device info for the children of nexus(4). This is
  done in order to not need to export M_NEXUS when deriving drivers
  for subordinate busses from the nexus(4) class.
o Use the DEFINE_CLASS_0() macro to declare the nexus(4) driver so
  we can derive subclasses from it.
o Const'ify the nexus_excl_name and nexus_excl_type arrays as well
  as add 'associations' and 'rsc', which are pseudo-devices without
  resources and therefore of no real interest for nexus(4), to the
  former.
o Let the nexus(4) device memory rman manage the entire 64-bit address
  space instead of just the UPA_MEMSTART to UPA_MEMEND subregion as
  Fireplane/Safari- and JBus-based machines use multiple ranges,
  which can't be as easily divided as in the case of UPA (limiting
  the address space only served for sanity checking anyway).
o Use M_WAITOK instead of M_NOWAIT when allocating the device info
  for children of nexus(4) in order to give one less opportunity
  for adding devices to nexus(4) to fail.
o While adapting the drivers affected by the above nexus(4) changes,
  change them to take advantage of rman_get_rid() instead of caching
  the RIDs assigned to allocated resources, now that the RIDs of
  resources are correctly set.
o In iommu(4) and nexus(4) replace hard-coded functions names, which
  actually became outdated in several places, in panic strings and
  status massages with __func__. [1]
o Use driver_filter_t in prototypes where appropriate.
o Add my copyright to creator(4), fhc(4), nexus(4), psycho(4) and
  sbus(4) as I changed considerable amounts of these drivers as well
  as added a bunch of new features, workarounds for silicon bugs etc.
o Fix some white space nits.

Due to lack of access to Exx00 hardware, these changes, i.e. central(4)
and fhc(4), couldn't be runtime tested on such a machine. Exx00 are
currently reported to panic before trying to attach nexus(4) anyway
though.

PR:		76052 [1]
Approved by:	re (kensmith)
2007-03-07 21:13:51 +00:00
Paolo Pisati
988d1fde21 Wrap at 80 bus_setup_intr() in upa_setup_intr(). 2007-03-06 12:19:37 +00:00
Marius Strobl
669a4d96e4 Use uma_set_align(). 2007-02-25 10:52:47 +00:00
Paolo Pisati
ef544f6312 o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@
2007-02-23 12:19:07 +00:00
Brooks Davis
983f970981 Include GEOM_LABEL in GENERIC. It's very useful and not well publicized
enough.

Approved by:	pjd
2007-02-09 19:03:18 +00:00
Marcel Moolenaar
1d3aed33e8 Evolve the ctlreq interface added to geom_gpt into a generic
partitioning class that supports multiple schemes. Current
schemes supported are APM (Apple Partition Map) and GPT.
Change all GEOM_APPLE anf GEOM_GPT options into GEOM_PART_APM
and GEOM_PART_GPT (resp).

The ctlreq interface supports verbs to create and destroy
partitioning schemes on a disk; to add, delete and modify
partitions; and to commit or undo changes made.
2007-02-07 18:55:31 +00:00
Marius Strobl
d7a0d759c0 Quiet GCC4 warnings regarding the width of printf()-arguments not
matching the format. While at it limit the format to unsigned int as
we're only interested in the 11 least significant bits anyway.
2007-01-20 17:14:12 +00:00
Marius Strobl
e6770fff6b - Use bus_get_dma_tag() to obtain the parent DMA tag so dma(4) will
work when we start requiring this.
- Don't specify an alignment when creating our own parent DMA tag;
  the supported DMA engines require no alignment constraint (f.e. the
  LANCE child does though) and it's no inherited by the child DMA
  tags anyway (which probably is a bug though).
- Fix whitespace nits.
2007-01-20 14:06:01 +00:00
Marius Strobl
0ca3609e30 Convert the remainder of the low hanging fruits regarding including
headers in .S directly rather than getting to their macros through
genassym.c/assym.s so there are less headers genassym.c has to be
kept in sync with.
While at it fix some stytle(9) bugs (indentation, prototype format,
sort headers, etc) and remove trailing whitespace.
2007-01-19 11:15:34 +00:00
Marius Strobl
23e81b7e03 - Rename UPA_BUS_SPACE to NEXUS_BUS_SPACE; besides an UPA bus, nexus(4)
may also reflect a Fireplane/Safari or JBus bus (or a virtual bus which
  in turn reflects a JBus bus or something like that...).
- In the both the sparc64 and sun4v bus_machdep.c use __FBSDID.
- Spell SBus the official way in comments.
- Replace hardcoded function names (all of which were actually outdated)
  in panic and status strings with __func__.
- Fix whitespace nits.
2007-01-18 18:32:26 +00:00
Marius Strobl
441b9412d6 Remove the compat shims for the ISA old-stlye in{b,w,l}()/out{b,w,l}()
and friends along with all hacks required to implement them. None of
the drivers currently built (as part of GENERIC, LINT or modules) on
sparc64 or sun4v and none of those we might want to use there in
future uses them, AFAICT there actually never was a driver hooked up
to the sparc64 or sun4v build that correctly used these functions
(and it looks like that due to a bug read{b,w,l}()/write{b,w,l}() and
the other functions working on a memory handle never actually worked on
sun4v). All they ever were good for on sparc64 and sun4v was erroneously
dragging in dependencies on isa(4) in drivers like f.e. dpt(4), si(4)
and syscons(4) in source files that supposedly were bus-neutral and
hiding issues with drivers like f.e. ng_bt3c(4) that used these
functions with busses other than isa(4) and therefore couldn't work on
these platforms.
2007-01-18 13:52:44 +00:00
Marius Strobl
0855a1ba50 Resurrect upa(4), now used for the subordinate/slave UPA bridge and
bus hanging off from the Fireplane/Safari bus in some USIII machines.
This is part 3/4 of allowing creator(4) to work in these machines.
The little info needed on how to configure the bridge and to work
around the incorrect values contained in the `interrupts' properties
of its children were obtained form OpenSolaris.
2007-01-16 22:08:27 +00:00
Marius Strobl
d3fc12aff9 - Merge sys/sparc64/creator/creator_upa.c into sys/dev/fb/creator.c.
The separate bus front-end was inherited from the OpenBSD creator(4),
  which at that time had a mainbus(4) (for USI/II machines, which use
  an UPA interconnection bus as the nexus) and an upa(4) (for USIII
  machines, which use a subordinate/slave UPA bus hanging off from the
  Fireplane/Safari interconnection bus) front-end. With FreeBSD and
  newbus there is/will be no need to have two separate bus front-ends
  for these busses, so we can easily coallapse the shared front-end
  and the back-end into a single source file (note that the FreeBSD
  creator_upa.c was misnomer anyway; based on what it actually attached
  to that should have been creator_nexus.c), actually OpenBSD meanwhile
  also has moved to a shared front-end and a single source file. Due
  to the low-level console support creator.c also wasn't free from bus
  related things before.
  While at it, also split sys/sparc64/creator/creator.h into a
  sys/dev/fb/creatorreg.h that only contains register macros and move
  the structures to the top of sys/dev/fb/creator.c as suggested by
  style(9) so creator(4) is no longer scattered over two directories.
- Use OF_decode_addr()/sparc64_fake_bustag() to obtain the bus tags and
  handles for the low-level console support instead of hardcoding
  support for AFB/FFB hanging off from nexus(4) only. This is part 2/4
  of allowing creator(4) to work in USIII machines (which have a UPA
  bus hanging off from the Fireplane/Safari bus reflected by the nexus),
  which already makes it work as the low-level console there.
- Allocate resources in the bus attach routine regardless of whether
  creator(4) is used as for the low-level console and thus the required
  bus tags and handles have been already obtained or not so the resources
  are marked as taken in the respective RMAN.
- For both obtaining the bus tags and handles for the low-level console
  support as well as allocating the corresponding resources in the
  regular bus attach routine don't bother to get all for the maximum of
  24 register banks but only (for) the two tag/handle pairs required for
  providing the video interface for syscons(4) support. If we can't
  allocate the rest of them just limit the memory range accessible via
  creator_fb_mmap() accordingly.
- Sanity check the memory range spanned by the first and last resources
  and the resources in between as far as possible, as the XFree86/Xorg
  sunffb(4) expects to be able to access the whole region, even though
  the backing resources are actually non-continuous. Limit and check
  the memory range accessible via creator_fb_mmap() accordingly.
- Reduce the size of buffers for OFW properties to what they actually
  need to hold.
- Rename some tables to creator_<foo> for consistency.
- Also for the sizes in the creator_fb_mmap() mapping table entries use
  macros for consistency, add macros for the remaining register banks
  for completeness.
2007-01-16 21:08:22 +00:00
Marius Strobl
676503a237 Teach OF_decode_addr() about the bus space used for devices on the
nexus (which might or might not reflect an UPA interconnection bus;
accordingly UPA_BUS_SPACE should be renamed to NEXUS_BUS_SPACE at a
later point) and subordinate/slave UPA busses. This is part 1/4 of
allowing creator(4) to work in USIII machines (which have a UPA bus
hanging off from the Fireplane/Safari bus reflected by the nexus).
2007-01-16 20:42:21 +00:00
Marius Strobl
c43ab0b9da Check the return value of bus_setup_intr() when setting up the
over-temperature and power-fail interrupts.

Suggested by:	Coverity Prevent (CID 683)
MFC after:	1 week
2007-01-15 22:37:59 +00:00
Warner Losh
fed32d7544 Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
Marius Strobl
d05b58ad32 o Changes to psycho_attach(): [1]
- Clear the PCI AFSR and status error bits as previous errors still
    might be indicated.
  - Set up the PCI control and diagnostic registers according to the
    capabilities, workarounds, etc of/for specific revisions of the
    supported bridges. This includes no longer setting Hummingbird-/
    Sabre-specific bits in the PCI control register but preserving
    what the firmware has initialized them to like OpenSolaris does.
    Previously we were setting these bits according to the example in
    the Sabre documentation, which I doubt is appropriate for all
    Sabre based designs and especially not for Hummingbirds. This
    also includes not enabling bus parking unless the firmware tells
    us to.
  - Set the PCI latency timer register as this isn't always done by
    the firmware.
o Remove a redundant argument from psycho_set_intr() and in this
  function check the return value of bus_setup_intr(). [2]
o Let psycho_setup_intr() return ENOMEM instead of 0 when it can't
  allocate memory for the interrupt wrapper stub and EINVAL instead
  of 0 if it can't find the interrupt vector in the interrupt map.
o Add a workaround for a bug of the Sabre-APB-combination where it
  doesn't drain DMA write data for devices behind additional PCI-PCI
  bridges underneath the APB PCI-PCI bridge. This workaround (do
  things necessary in order to achieve a manual drain when coherency
  is required) is currently implemented in psycho_setup_intr() and
  psycho_intr_stub() (for easy MFC'ing) and therefore is only applied
  for interrupt handlers. This should be moved to psycho(4)-specific
  bus_dma_tag_create() and bus_dmamap_sync() methods, respectively,
  once this driver is converted to make use of BUS_GET_DMA_TAG(), so
  the workaround is also applied for polling(4) callbacks. [3]
o Fix some minor style issues.

Info from:	OpenSolaris [1]
Info from:	Linux, OpenBSD, OpenSolaris [3]
Suggested by:	Coverity Prevent (CID 682) [2]
MFC after:	1 month
2007-01-08 01:26:47 +00:00
Marius Strobl
0975feff68 In ofw_pcibus_attach() skip dupe PCI devices reported by the
firmware (mainly 'pmu' and its 'lomp' dupe found in a couple of
later USII{e,i}-based machines) by checking whether a device with
the same triple of bus number, slot and function already has been
added. This is the simple yet effective approach introduced in
OpenBSD some time ago, but which has the flaw that it assumes
that the device and its dupe(s) found in the OFW device tree are
equal or at least the one encountered first is in some way the
more important one (this is the case with 'pmu' and 'lomp'; the
'pmu' node has couple of properties and children while the 'lomp'
one misses most of these). If there's ever a device/dupe pair
where we don't encounter the more important node first, we'll
probably need to introduce a quirk list in order to add the
desired device but prevent its dupe(s) from being added.

MFC after:	1 week
2007-01-08 01:08:24 +00:00
Kip Macy
118b944e8d add new large page sizes for use by shared loader 2006-12-18 07:28:59 +00:00
Kip Macy
7e3cb9f8ce GC unused fields in pcpu 2006-12-17 02:04:19 +00:00
Kip Macy
4d249371ce Do explicit bounds checking as a function of the actual size of the
reloc_target_bitmask array as opposed to the (known) index of the last value.
This change fixes CID 691.
2006-12-10 04:18:03 +00:00
Julian Elischer
ad1e7d285a Threading cleanup.. part 2 of several.
Make part of John Birrell's KSE patch permanent..
Specifically, remove:
Any reference of the ksegrp structure. This feature was
never fully utilised and made things overly complicated.
All code in the scheduler that tried to make threaded programs
fair to unthreaded programs.  Libpthread processes will already
do this to some extent and libthr processes already disable it.

Also:
Since this makes such a big change to the scheduler(s), take the opportunity
to rename some structures and elements that had to be moved anyhow.
This makes the code a lot more readable.

The ULE scheduler compiles again but I have no idea if it works.

The 4bsd scheduler still reqires a little cleaning and some functions that now do
ALMOST nothing will go away, but I thought I'd do that as a separate commit.

Tested by David Xu, and Dan Eischen using libthr and libpthread.
2006-12-06 06:34:57 +00:00
John Birrell
e0b651251d Turn console printf buffering into a kernel option and only on
by default for sun4v where it is absolutely required.

This change moves the buffer from struct pcpu to the stack to avoid
using the critical section which created a LOR in a couple of cases
due to interaction with the tty code and kqueue. The LOR can't be
fixed with the critical section and the pcpu buffer can't be used
without the critical section.

Putting the buffer on the stack was my initial solution, but it was
pointed out that the stress on the stack might cause problems
depending on the call path. We don't have a way of creating tests
for those possible cases, so it's best to leave this as an option
for the time being. In time we may get enough data to enable this
option more generally.
2006-11-30 04:17:05 +00:00
Kip Macy
8751d0554c - Explicitly name the fields in pcb that we use to store trap state for later
retrieval, rather than using pad
- save the fault address in sfar for use by the alignment fixup handler
- mask off the trap number, so the context id doesn't confuse the UT_MAX
  comparison

This change fixes alignment fixup handling which is needed for traceroute
to work in spite of its copious unaligned accesses
2006-11-29 05:18:19 +00:00
Kip Macy
a137217d3f remove unused reference to tsb pa 2006-11-24 18:36:04 +00:00
Kip Macy
3cf970e7bc Add mechanism to track TSB misses in tsb miss handler
Remove unused debug code
2006-11-22 00:18:22 +00:00
Kip Macy
1eea142b6f remove 13 (largely) redundant files and switch to the sparc64/sparc64 version
Reviewed by: jb (mentor rwatson)
2006-11-18 07:10:52 +00:00
Alan Cox
44b8bd66f9 Make pmap_enter() responsible for setting PG_WRITEABLE instead
of its caller.  (As a beneficial side-effect, a high-contention
acquisition of the page queues lock in vm_fault() is eliminated.)
2006-11-12 21:48:34 +00:00
John Birrell
8391a99bf7 Remove the KDTRACE option again because of the complaints about having
it as a default.

For the record, the KDTRACE option caused _no_ additional source files
to be compiled in; certainly no CDDL source files. All it did was to
allow existing BSD licensed kernel files to include one or more CDDL
header files.

By removing this from DEFAULTS, the onus is on a kernel builder to add
the option to the kernel config, possibly by including GENERIC and
customising from there. It means that DTrace won't be a feature
available in FreeBSD by default, which is the way I intended it to be.

Without this option, you can't load the dtrace module (which contains
the dtrace device and the DTrace framework). This is equivalent to
requiring an option in a kernel config before you can load the linux
emulation module, for example.

I think it is a mistake to have DTrace ported to FreeBSD, but not
to have it available to everyone, all the time. The only exception
to this is the companies which distribute systems with FreeBSD embedded.
Those companies will customise their systems anyway. The KDTRACE
option was intended for them, and only them.
2006-11-04 23:50:12 +00:00
John Birrell
5d5a1c7fb3 Backout the previous change. It was not intended to be part of the
commit and, while something like that is probably required for sparc64,
it hadn't been tested.
2006-11-04 05:27:21 +00:00
John Birrell
1f80cd9398 Build in kernel support for loading DTrace modules by default. This
adds the hooks that DTrace modules register with, and adds a few functions
which have the dtrace_ prefix to allow the DTrace FBT (function boundary
trace) provider to avoid tracing because they are called from the DTtrace
probe context.

Unlike other forms of tracing and debug, DTrace support in the kernel
incurs negligible run-time cost.

I think the only reason why anyone wouldn't want to have kernel support
enabled for DTrace would be due to the license (CDDL) under which DTrace
is released.
2006-11-04 04:58:10 +00:00
Kip Macy
ef8f32e393 make pcb pad area accessible from asm
Approved by: scottl (standing in for rwatson as mentor)
2006-11-03 23:33:40 +00:00
Marius Strobl
65deb9d947 - In sunkbd_probe_keyboard() don't bother to determine the keyboard layout
as we have no use for that info. Instead let this function return the
  keyboard ID and verify at its invocation in sunkbd_configure() that we're
  talking to a Sun type 4/5/6 keyboard, i.e. a keyboard supported by this
  driver.
- Add an option SUNKBD_EMULATE_ATKBD whose code is based on the respective
  code in ukbd(4) and like UKBD_EMULATE_ATSCANCODE causes this driver to
  emit AT keyboard/KB_101 compatible scan codes in K_RAW mode as assumed by
  kbdmux(4). Unlike UKBD_EMULATE_ATSCANCODE, SUNKBD_EMULATE_ATKBD also
  triggers the use of AT keyboard maps and thus allows to use the map files
  in share/syscons/keymaps with this driver at the cost of an additional
  translation (in ukbd(4) this just is the way of operation).
- Implement an option SUNKBD_DFLT_KEYMAP, which like the equivalent options
  of the other keyboard drivers allows to specify the default in-kernel
  keyboard map. For obvious reasons this made to only work when also using
  SUNKBD_EMULATE_ATKBD.
- Implement sunkbd_check(), sunkbd_check_char() and sunkbd_clear_state(),
  which are also required for interoperability with kbdmux(4).
- Implement K_CODE mode and FreeBSD keypad compose.
- As a minor hack define KBD_DFLT_KEYMAP also in the !SUNKBD_EMULATE_ATKBD
  case so we can obtain fkey_tab from <dev/kbd/kbdtables.h> rather than
  having to duplicate it and #ifdef some more code.
- Don't use the TX-buffer for writing the two command bytes for setting the
  keyboard LEDs as this consequently requires a hardware FIFO that is at
  least two bytes in depth, which the NMOS-variant of the Zilog SCCs doesn't
  have. Thus use an inlined version of uart_putc() to consecutively write
  the command bytes (a cleaner approach would be to do this via the soft
  interrupt handler but that variant wouldn't work while in ddb(4)). [1]
- Fix some minor style(9) bugs.

PR:		90316 [1]
Reviewed by:	marcel [1]
2006-11-02 00:01:15 +00:00
Marius Strobl
373b61fd20 Remove the atkbd(4), atkbdc(4) and psm(4) hints. In theory they can be
used on sparc64 but that would be totally wrong in practice.
2006-11-01 18:17:53 +00:00
John Birrell
3d068827c2 Add a cnputs() function to write a string to the console with
a lock to prevent interspersed strings written from different CPUs
at the same time.

To avoid putting a buffer on the stack or having to malloc one,
space is incorporated in the per-cpu structure. The buffer
size if 128 bytes; chosen because it's the next power of 2 size
up from 80 characters.

String writes to the console are buffered up the end of the line
or until the buffer fills. Then the buffer is flushed to all
console devices.

Existing low level console output via cnputc() is unaffected by
this change. ithread calls to log() are also unaffected to avoid
blocking those threads.

A minor change to the behaviour in a panic situation is that
console output will still be buffered, but won't be written to
a tty as before. This should prevent interspersed panic output
as a number of CPUs panic before we end up single threaded
running ddb.

Reviewed by:	scottl, jhb
MFC after:	2 weeks
2006-11-01 04:54:51 +00:00
Marius Strobl
a1610d83b8 In the replacement text of the __bswapN_const() macros encapsulate the
argument in parentheses so these macros are safe to use and invocations
with an expression as the argument like __bswap32_const(42 << 23 | 13)
work as expected. Additionally, mask all the individually shifted bytes
as appropriate so the bytes which exceed the width of the respective
__bswapN_const() macro in invocations like __bswap16_const(0xdead600d)
are ignored like it's the case with the corresponding __bswapN_var()
function.

MFC after:	3 days
2006-10-30 21:50:11 +00:00
John Birrell
3750d1ecad Remove the KSE option now that it's in DEFAULTS on these arches/machines.
The 'nooption' kernel config entry has to be used to turn KSE off now.
This isn't my preferred way of dealing with this, but I'll defer to
scottl's experience with the io/mem kernel option change and the grief
experienced over that.

Submitted by:	scottl@
2006-10-26 22:11:35 +00:00
John Birrell
013d6d8cb4 Add 'options KSE' to the kernel config DEFAULTS on all arches/machines
except sun4v.

This change makes the transition from a default to an option more
transparent and is an attempt to head off all the compliants that are
likely from people who don't read UPDATING, based on experience with
the io/mem change.

Submitted by:	scottl@
2006-10-26 22:05:25 +00:00
John Birrell
8460a577a4 Make KSE a kernel option, turned on by default in all GENERIC
kernel configs except sun4v (which doesn't process signals properly
with KSE).

Reviewed by:	davidxu@
2006-10-26 21:42:22 +00:00
Ruslan Ermilov
837f167eb2 Move "device splash" back to MI NOTES and "files", it's MI. 2006-10-23 13:23:14 +00:00
Ruslan Ermilov
66adc12877 Revision 1.25 had the ATKBD_DFLT_KEYMAP option turned on and then off:
: # Options for atkbd:
: options        ATKBD_DFLT_KEYMAP       # specify the built-in keymap
: makeoptions    ATKBD_DFLT_KEYMAP=jp.106
[...]
: nooption       ATKBD_DFLT_KEYMAP
: nomakeoption   ATKBD_DFLT_KEYMAP

(Previously the option was inherited from MI NOTES.)  So my tool in
rev. 1.26 reduced this to removing all "ATKBD_DFLT_KEYMAP" lines,
leaving the option effectively disabled as it was before, but since
it's actually supported on sparc64, turn it on now.
2006-10-23 10:05:36 +00:00
Ruslan Ermilov
9fae53b036 Mechanically kill redundant nodevice/nooption/nomakeoption, i.e.,
those that do not exist in MI NOTES or switched on/off in the MD
NOTES.
2006-10-23 09:45:22 +00:00
Dag-Erling Smørgrav
c43ac89acc Move more MD devices and options out of MI NOTES. 2006-10-20 09:52:27 +00:00
David Xu
5f641fc0fb o Add keyword volatile for user mutex owner field.
o Fix type consistent problem by using type long for old
  umtx and wait channel.
o Rename casuptr to casuword.
2006-10-17 02:24:47 +00:00
Kip Macy
c94d217091 The T2000 has multiple PCI domains requiring bus allocation to be done differently.
This pulls in changes by jmg from perforce and makes them sun4v only for now.

Approved by: scottl (acting as backup for mentor rwatson)
2006-10-12 04:44:01 +00:00
Bruce Evans
e4b732cff1 The powerpc and sparc64 MD `reboot' commands should never have existed
since they just duplicated the MI `reset' command.  Instead of removing
them, make `reboot' an MI alias for `reboot' since this gives a better
way of killing the `r' alias for `reset'.  Remove the `registers' command
that was used to kill the alias.

Turn the powerpc and sparc64 MD `halt' command into an MI command.

A copy of sparc64/db_interface.c grew in sun4v just after I found the
extra reboot commands.  It has not been changed, and is now not
identical.  Duplicated commands come out duplicated in ddb's online
help, but cause large problems when used (e.g., on i386's with 2 halt's
and an hwatch, typing h doesn' give the expected message about an
ambiguous command, but hangs like the halt command or a looping parseri
would).
2006-10-10 07:26:54 +00:00
Kip Macy
2fce6c09f9 unbreak buildkernel for sparc64 - fallout from sun4v
Approved by: rwatson (mentor)
Reviewed by: jmg
2006-10-09 06:08:24 +00:00
Kip Macy
a9928b2f58 unbreak sparc64 loader build
re-add accidentally deleted asi value
remove sun4v only header include

Approved by: rwatson (mentor)
Reviewed by: jmg
2006-10-09 05:59:04 +00:00