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CVS log for src/sys/i386/i386/Attic/autoconf.c

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Revision 1.29
Sun Oct 22 16:09:21 2006 UTC (7 years, 5 months ago) by dillon
Branches: MAIN
CVS tags: HEAD
FILE REMOVED
Changes since revision 1.28: +1 -1 lines
Reorganize the way machine architectures are handled.  Consolidate the
kernel configurations into a single generic directory.  Move machine-specific
Makefile's and loader scripts into the appropriate architecture directory.

Kernel and module builds also generally add sys/arch to the include path so
source files that include architecture-specific headers do not have to
be adjusted.

sys/<ARCH>		-> sys/arch/<ARCH>
sys/conf/*.<ARCH>	-> sys/arch/<ARCH>/conf/*.<ARCH>
sys/<ARCH>/conf/<KERNEL> -> sys/config/<KERNEL>

Revision 1.28: download - view: text, markup, annotated - select for diffs
Wed Sep 13 18:45:12 2006 UTC (7 years, 7 months ago) by swildner
Branches: MAIN
Diff to: previous 1.27: preferred, unified
Changes since revision 1.27: +6 -9 lines
Ansify the rest of the K&R-style function declarations in sys/i386.

Those were somehow[tm] forgotten last time.

Noticed-by: corecode

While I'm here, perform some stylistic cleanup in math_emulate.c.

Revision 1.27: download - view: text, markup, annotated - select for diffs
Sun Sep 10 01:26:38 2006 UTC (7 years, 7 months ago) by dillon
Branches: MAIN
Diff to: previous 1.26: preferred, unified
Changes since revision 1.26: +4 -4 lines
Change the kernel dev_t, representing a pointer to a specinfo structure,
to cdev_t.  Change struct specinfo to struct cdev.  The name 'cdev' was taken
from FreeBSD.  Remove the dev_t shim for the kernel.

This commit generally removes the overloading of 'dev_t' between userland and
the kernel.

Also fix a bug in libkvm where a kernel dev_t (now cdev_t) was not being
properly converted to a userland dev_t.

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Sat Sep 9 19:34:46 2006 UTC (7 years, 7 months ago) by dillon
Branches: MAIN
Diff to: previous 1.25: preferred, unified
Changes since revision 1.25: +2 -2 lines
Rename the kernel NODEV to NOCDEV to avoid conflicts with the userland NODEV.

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Tue Sep 5 00:55:45 2006 UTC (7 years, 7 months ago) by dillon
Branches: MAIN
Diff to: previous 1.24: preferred, unified
Changes since revision 1.24: +2 -2 lines
Rename malloc->kmalloc, free->kfree, and realloc->krealloc.  Pass 1

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Sun Sep 3 17:43:59 2006 UTC (7 years, 7 months ago) by dillon
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Diff to: previous 1.23: preferred, unified
Changes since revision 1.23: +4 -4 lines
Rename functions to avoid conflicts with libc.

Revision 1.23: download - view: text, markup, annotated - select for diffs
Fri Nov 4 08:57:27 2005 UTC (8 years, 5 months ago) by dillon
Branches: MAIN
CVS tags: DragonFly_RELEASE_1_6_Slip, DragonFly_RELEASE_1_6, DragonFly_RELEASE_1_4_Slip, DragonFly_RELEASE_1_4
Diff to: previous 1.22: preferred, unified
Changes since revision 1.22: +0 -4 lines
Allow 'options SMP' *WITHOUT* 'options APIC_IO'.  That is, an ability to
produce an SMP-capable kernel that uses the PIC/ICU instead of the IO APICs
for interrupt routing.

SMP boxes with broken BIOSes (namely my Shuttle XPC SN95G5) could very well
have serious interrupt routing problems when operating in IO APIC mode.
One solution is to not use the IO APICs.  That is, to run only the Local
APICs for the SMP management.

* Don't conditionalize NIDT.  Just set it to 256

* Make the ICU interrupt code MP SAFE.  This primarily means using the
  imen_spinlock to protect accesses to icu_imen.

* When running SMP without APIC_IO, set the LAPIC TPR to prevent unintentional
  interrupts.  Leave LINT0 enabled (normally with APIC_IO LINT0 is disabled
  when the IO APICs are activated).  LINT0 is the virtual wire between the
  8259 and LAPIC 0.

* Get rid of NRSVIDT.  Just use IDT_OFFSET instead.

* Clean up all the APIC_IO tests which should have been SMP tests, and all
  the SMP tests which should have been APIC_IO tests.  Explicitly #ifdef
  out all code related to the IO APICs when APIC_IO is not set.

Revision 1.22: download - view: text, markup, annotated - select for diffs
Wed Nov 2 18:42:01 2005 UTC (8 years, 5 months ago) by dillon
Branches: MAIN
Diff to: previous 1.21: preferred, unified
Changes since revision 1.21: +4 -22 lines
ICU/APIC cleanup part 5/many.

Start migrating the ICU and APIC interrupt interfaces to a new machine
level interrupt ABI.  This ABI will eventually be tied into the BUS
architecture.

Move INTRDIS/INTREN to the new API: machintr_intrdis(irq) and
machintr_intren(irq).

Get rid of ithread_unmask().  Have the interrupt thread code call
machintr_intrdis(irq) directly.

Revision 1.21: download - view: text, markup, annotated - select for diffs
Wed Nov 2 17:47:30 2005 UTC (8 years, 5 months ago) by dillon
Branches: MAIN
Diff to: previous 1.20: preferred, unified
Changes since revision 1.20: +1 -1 lines
ICU/APIC cleanup part 4/many.

INTRDIS/INTREN only always take a single bit.  Change the argument
from a mask to a bit number to improve flexibility.  Relabel the
ICU IRQ's (IRQ0, IRQ1, ...) to ICU_IRQ* while we are at it.

Revision 1.20: download - view: text, markup, annotated - select for diffs
Wed Nov 2 08:33:25 2005 UTC (8 years, 5 months ago) by dillon
Branches: MAIN
Diff to: previous 1.19: preferred, unified
Changes since revision 1.19: +1 -1 lines
ICU/APIC cleanup part 1/many.

Move ICU and APIC support files into their own subdirectory, bump the
required config version for the build since this move also requires the
use of the new arch/ symlink.

Revision 1.19: download - view: text, markup, annotated - select for diffs
Fri Oct 28 03:25:57 2005 UTC (8 years, 5 months ago) by dillon
Branches: MAIN
Diff to: previous 1.18: preferred, unified
Changes since revision 1.18: +7 -6 lines
Cleanup some of the newbus infrastructure.

* Change the device_identify API to return success/failure, like
  most of the other newbus methods.  This may be used for conflict
  resolution in the future.

* Clearly document the device_identify method and formalize its use
  by adding discrimination between initial bus probes and bus rescans.
  Do not re-execute static identification code that has already been run
  every time a new driver is added at run-time.

* Clearly document the do-ISA-last hack.

* Provide generic routines for the most common device_identify operations
  (psueo or synthesized devices that operate under other devices, such as
  lpt operating under ppbus, which are not 'scanned' by the parent bus).

* Remove the hacks that install and initialize the nexus device.  Instead,
  use the existing DRIVER_MODULE infrastructure to install nexus under
  root_bus.

* Document the boot-time initialization path so it doesn't take the next
  guy 8 hours to figure out what code is actually being run when.

Revision 1.18: download - view: text, markup, annotated - select for diffs
Sun Sep 4 01:28:59 2005 UTC (8 years, 7 months ago) by dillon
Branches: MAIN
Diff to: previous 1.17: preferred, unified
Changes since revision 1.17: +6 -2 lines
Give the kernel a native NFS mount rpc capability for mounting NFS roots by
splitting off the mount rpc code from the BOOTP code.  The loader is no
longer required to pass the nfs root mount file handle to the kernel.

Pure tftp-based loaders with no knowledge of NFS can now pass a NFS root
mount path to the kernel without having to pass a resolved NFS file handle.
This change allows kernels booted from tftp loaders to have an NFS root
without having to specify BOOTP (which sometimes doesn't work properly when
done from both the loader and from the kernel).

Revision 1.17: download - view: text, markup, annotated - select for diffs
Thu Jun 16 21:12:44 2005 UTC (8 years, 10 months ago) by dillon
Branches: MAIN
Diff to: previous 1.16: preferred, unified
Changes since revision 1.16: +0 -6 lines
Remove all remaining SPL code.  Replace the mtd_cpl field in the machine
dependant thread structure and the CPL field in the interrupt stack frame
with dummies (so structural sizes do not change, yet).  Remove all interrupt
handler SPL mask and mask pointer code.  Remove all spl*() functions except
for splz().

Note that doreti uses a temporary CPL mask internally to accumulate a bitmap
of FAST interrupts which could not be executed due to not being able to get
the BGL.  This mask has no outside visibility.

Note that gd_fpending and gd_ipending still exist to support critical section
interrupt deferment.

Revision 1.16: download - view: text, markup, annotated - select for diffs
Mon Jun 6 15:02:26 2005 UTC (8 years, 10 months ago) by dillon
Branches: MAIN
Diff to: previous 1.15: preferred, unified
Changes since revision 1.15: +1 -1 lines
Remove spl*() calls from kern, replacing them with critical sections.
Change the meaning of safepri from a cpl mask to a thread priority.
Make a minor adjustment to tests within one of the buffer cache's
critical sections.

Revision 1.15: download - view: text, markup, annotated - select for diffs
Thu Oct 14 18:31:02 2004 UTC (9 years, 6 months ago) by dillon
Branches: MAIN
CVS tags: DragonFly_Stable, DragonFly_RELEASE_1_2_Slip, DragonFly_RELEASE_1_2
Diff to: previous 1.14: preferred, unified
Changes since revision 1.14: +9 -2 lines
Remove the 'ether' module dependancy, it is not defined anywhere and will
prevent the loader from pre-loading the modules in question.

Do not partially initialize the related struct sockaddr_in when a
non-existant or "0.0.0.0" pxe related kenv is found.  In particular, if
the gateway is not specified by the DHCP server we avoid attempting to add
a bad default route (which results in a panic) later on.

Revision 1.14: download - view: text, markup, annotated - select for diffs
Thu Oct 14 03:05:52 2004 UTC (9 years, 6 months ago) by dillon
Branches: MAIN
Diff to: previous 1.13: preferred, unified
Changes since revision 1.13: +2 -2 lines
Do not use non-blocking malloc()'s in the busdma support code.  A lot of
drivers basically expect these functions to work, so they must work.   It
was originally believed that the ATA code might be effected but it turns out
our ATA code does not (yet) use busdma.  However, other disk drivers such
as TWE *do* use it.  Note that most drivers appear to use the busdma
allocation functions at driver initialization rather then at run time.

Revision 1.13: download - view: text, markup, annotated - select for diffs
Wed Jul 28 06:04:41 2004 UTC (9 years, 8 months ago) by dillon
Branches: MAIN
CVS tags: DragonFly_Snap29Sep2004, DragonFly_Snap13Sep2004
Diff to: previous 1.12: preferred, unified
Changes since revision 1.12: +8 -0 lines
udev2dev() can return NODEV now, make sure it doesn't crash autoconf's
attempt to mount the root filesystem.

Crash reported by: =?ISO-8859-1?Q?Stefan_Kr=FCger?= <skrueger@meinberlikomm.de>

Revision 1.12: download - view: text, markup, annotated - select for diffs
Wed May 19 22:52:57 2004 UTC (9 years, 11 months ago) by dillon
Branches: MAIN
CVS tags: DragonFly_1_0_REL, DragonFly_1_0_RC1, DragonFly_1_0A_REL
Diff to: previous 1.11: preferred, unified
Changes since revision 1.11: +3 -4 lines
Device layer rollup commit.

* cdevsw_add() is now required.  cdevsw_add() and cdevsw_remove() may specify
  a mask/match indicating the range of supported minor numbers.  Multiple
  cdevsw_add()'s using the same major number, but distinctly different
  ranges, may be issued.  All devices that failed to call cdevsw_add() before
  now do.

* cdevsw_remove() now automatically marks all devices within its supported
  range as being destroyed.

* vnode->v_rdev is no longer resolved when the vnode is created.  Instead,
  only v_udev (a newly added field) is resolved.  v_rdev is resolved when
  the vnode is opened and cleared on the last close.

* A great deal of code was making rather dubious assumptions with regards
  to the validity of devices associated with vnodes, primarily due to
  the persistence of a device structure due to being indexed by (major, minor)
  instead of by (cdevsw, major, minor).  In particular, if you run a program
  which connects to a USB device and then you pull the USB device and plug
  it back in, the vnode subsystem will continue to believe that the device
  is open when, in fact, it isn't (because it was destroyed and recreated).

  In particular, note that all the VFS mount procedures now check devices
  via v_udev instead of v_rdev prior to calling VOP_OPEN(), since v_rdev
  is NULL prior to the first open.

* The disk layer's device interaction has been rewritten.  The disk layer
  (i.e. the slice and disklabel management layer) no longer overloads
  its data onto the device structure representing the underlying physical
  disk.  Instead, the disk layer uses the new cdevsw_add() functionality
  to register its own cdevsw using the underlying device's major number,
  and simply does NOT register the underlying device's cdevsw.  No
  confusion is created because the device hash is now based on
  (cdevsw,major,minor) rather then (major,minor).

  NOTE: This also means that underlying raw disk devices may use the entire
  device minor number instead of having to reserve the bits used by the disk
  layer, and also means that can we (theoretically) stack a fully
  disklabel-supported 'disk' on top of any block device.

* The new reference counting scheme prevents this by associating a device
  with a cdevsw and disconnecting the device from its cdevsw when the cdevsw
  is removed.  Additionally, all udev2dev() lookups run through the cdevsw
  mask/match and only successfully find devices still associated with an
  active cdevsw.

* Major work on MFS:  MFS no longer shortcuts vnode and device creation.  It
  now creates a real vnode and a real device and implements real open and
  close VOPs.  Additionally, due to the disk layer changes, MFS is no longer
  limited to 255 mounts.  The new limit is 16 million.  Since MFS creates a
  real device node, mount_mfs will now create a real /dev/mfs<PID> device
  that can be read from userland (e.g. so you can dump an MFS filesystem).

* BUF AND DEVICE STRATEGY changes.  The struct buf contains a b_dev field.
  In order to properly handle stacked devices we now require that the b_dev
  field be initialized before the device strategy routine is called.  This
  required some additional work in various VFS implementations.  To enforce
  this requirement, biodone() now sets b_dev to NODEV.  The new disk layer
  will adjust b_dev before forwarding a request to the actual physical
  device.

* A bug in the ISO CD boot sequence which resulted in a panic has been fixed.

Testing by: lots of people, but David Rhodus found the most aggregious bugs.

Revision 1.11: download - view: text, markup, annotated - select for diffs
Tue Jan 6 03:17:24 2004 UTC (10 years, 3 months ago) by dillon
Branches: MAIN
Diff to: previous 1.10: preferred, unified
Changes since revision 1.10: +1 -2 lines
if_xname support Part 2/2: Convert remaining netif devices and implement full
support for if_xname.  Restructure struct ifnet in net/if_var.h, pulling in
a few minor additional changes from current including making if_dunit an int,
and making if_flags an int.

Submitted-by: Max Laier <max@love2party.net>

Revision 1.10: download - view: text, markup, annotated - select for diffs
Tue Aug 26 21:42:18 2003 UTC (10 years, 7 months ago) by rob
Branches: MAIN
Diff to: previous 1.9: preferred, unified
Changes since revision 1.9: +4 -4 lines
what the heck one last one before i go take a nap...

remove __P(); from the i386 directory

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Thu Aug 7 21:17:22 2003 UTC (10 years, 8 months ago) by dillon
Branches: MAIN
Diff to: previous 1.8: preferred, unified
Changes since revision 1.8: +6 -6 lines
kernel tree reorganization stage 1: Major cvs repository work (not logged as
commits) plus a major reworking of the #include's to accomodate the
relocations.

    * CVS repository files manually moved.  Old directories left intact
      and empty (temporary).

    * Reorganize all filesystems into vfs/, most devices into dev/,
      sub-divide devices by function.

    * Begin to move device-specific architecture files to the device
      subdirs rather then throwing them all into, e.g. i386/include

    * Reorganize files related to system busses, placing the related code
      in a new bus/ directory.  Also move cam to bus/cam though this may
      not have been the best idea in retrospect.

    * Reorganize emulation code and place it in a new emulation/ directory.

    * Remove the -I- compiler option in order to allow #include file
      localization, rename all config generated X.h files to use_X.h to
      clean up the conflicts.

    * Remove /usr/src/include (or /usr/include) dependancies during the
      kernel build, beyond what is normally needed to compile helper
      programs.

    * Make config create 'machine' softlinks for architecture specific
      directories outside of the standard <arch>/include.

    * Bump the config rev.

    WARNING! after this commit /usr/include and /usr/src/sys/compile/*
    should be regenerated from scratch.

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Wed Jul 23 02:30:18 2003 UTC (10 years, 8 months ago) by dillon
Branches: MAIN
Diff to: previous 1.7: preferred, unified
Changes since revision 1.7: +6 -1 lines
LINT pass.  Cleanup missed proc->thread conversions and get rid of warnings.

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Tue Jul 22 17:03:32 2003 UTC (10 years, 9 months ago) by dillon
Branches: MAIN
Diff to: previous 1.6: preferred, unified
Changes since revision 1.6: +2 -1 lines
DEV messaging stage 2/4: In this stage all DEV commands are now being
funneled through the message port for action by the port's beginmsg function.
CONSOLE and DISK device shims replace the port with their own and then
forward to the original.  FB (Frame Buffer) shims supposedly do the same
thing but I haven't been able to test it.   I don't expect instability
in mainline code but there might be easy-to-fix, and some drivers still need
to be converted.  See primarily: kern/kern_device.c (new dev_*() functions and
inherits cdevsw code from kern/kern_conf.c), sys/device.h, and kern/subr_disk.c
for the high points.

In this stage all DEV messages are still acted upon synchronously in the
context of the caller.  We cannot create a separate handler thread until
the copyin's (primarily in ioctl functions) are made thread-aware.

Note that the messaging shims are going to look rather messy in these early
days but as more subsystems are converted over we will begin to use
pre-initialized messages and message forwarding to avoid having to constantly
rebuild messages prior to use.

Note that DEV itself is a mess oweing to its 4.x roots and will be cleaned
up in subsequent passes.  e.g. the way sub-devices inherit the main device's
cdevsw was always a bad hack and it still is, and several functions
(mmap, kqfilter, psize, poll) return results rather then error codes, which
will be fixed since now we have a message to store the result in :-)

Revision 1.6: download - view: text, markup, annotated - select for diffs
Mon Jul 21 05:50:39 2003 UTC (10 years, 9 months ago) by dillon
Branches: MAIN
Diff to: previous 1.5: preferred, unified
Changes since revision 1.5: +21 -5 lines
DEV messaging stage 1/4: Rearrange struct cdevsw and add a message port
and auto-queueing mask.  The mask will tell us which message functions
can be safely queued to another thread and which still need to run in the
context of the caller.   Primary configuration fields (name, cmaj, flags,
port, autoq mask) are now at the head of the structure.  Function vectors,
which may eventually go away, are at the end.  The port and autoq fields
are non-functional in this stage.

The old BDEV device major number support has also been removed from cdevsw,
and code has been added to translate the bootdev passed from the boot code
(the boot code has always passed the now defunct block device major numbers
and we obviously need to keep that compatibility intact).

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Sun Jul 6 21:23:48 2003 UTC (10 years, 9 months ago) by dillon
Branches: MAIN
Diff to: previous 1.4: preferred, unified
Changes since revision 1.4: +3 -3 lines
MP Implementation 1/2: Get the APIC code working again, sweetly integrate the
MP lock into the LWKT scheduler, replace the old simplelock code with
tokens or spin locks as appropriate.  In particular, the vnode interlock
(and most other interlocks) are now tokens.  Also clean up a few curproc/cred
sequences that are no longer needed.

The APs are left in degenerate state with non IPI interrupts disabled as
additional LWKT work must be done before we can really make use of them,
and FAST interrupts are not managed by the MP lock yet.  The main thing
for this stage was to get the system working with an APIC again.

buildworld tested on UP and 2xCPU/MP (Dell 2550)

Revision 1.4: download - view: text, markup, annotated - select for diffs
Sat Jun 28 04:16:02 2003 UTC (10 years, 9 months ago) by dillon
Branches: MAIN
CVS tags: PRE_MP
Diff to: previous 1.3: preferred, unified
Changes since revision 1.3: +1 -2 lines
smp/up collapse stage 2 of 2:  cleanup the globaldata structure, cleanup
and separate machine dependant portions of thread, proc, and globaldata,
and reduce the need to include lots of MD header files.

Revision 1.3: download - view: text, markup, annotated - select for diffs
Sun Jun 22 08:54:18 2003 UTC (10 years, 10 months ago) by dillon
Branches: MAIN
Diff to: previous 1.2: preferred, unified
Changes since revision 1.2: +9 -2 lines
Finish migrating the cpl into the thread structure.

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Tue Jun 17 04:28:35 2003 UTC (10 years, 10 months ago) by dillon
Branches: MAIN
Diff to: previous 1.1: preferred, unified
Changes since revision 1.1: +1 -0 lines
Add the DragonFly cvs id and perform general cleanups on cvs/rcs/sccs ids.  Most
ids have been removed from !lint sections and moved into comment sections.

Revision 1.1: download - view: text, markup, annotated - select for diffs
Tue Jun 17 02:54:40 2003 UTC (10 years, 10 months ago) by dillon
Branches: MAIN
CVS tags: FREEBSD_4_FORK
import from FreeBSD RELENG_4 1.146.2.2

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