ACTUALLY_LKM_NOT_KERNEL until the real fix comes through. Whatever
flag that is used to indicate building LKMs will have be be substituted
in the future. This allows proper selection of the usage of the
efficient, single instruction in the kernel, but alas, doesn't allow
for use in userland or LKMs :-(. Them's the breaks!!!
with one of the following (I486_CPU,I586_CPU,I686_CPU) so it can take
advantage of the very quick bswap insn. This keeps LKMs from being
built to take advantage of the insn, but also makes sure that the LKMs
can be run on all CPUs. (The LKMs don't pick up the CPU options :-( ).
function ed_attach_NE2000_pci() in if_ed.c passes
an uninitialized block of memory (got with malloc())
to ed_attach. This prevents a proper initialization
of the device descriptor and in my case causes a panic
during the probe, while printing out device info.
Reviewed by: phk
Submitted by: Luigi Rizzo <luigi@iet.unipi.it>
list of IP setsockopts the Linux emulator recognizes.
Explicitly disallow IP_HDRINCL since Linux's handling of
raw output is different than BSD's.
Closes PR#kern/2111.
Submitted by: y-nakaga@ccs.mt.nec.co.jp (Yoshihisa NAKAGAWA)
1. All the suggestions earlier made by Bruce: renaming some symbols,
stricter error checking, removing redundant code, etc.
2. The `psm' driver preserves the default counter resolution and
report rate, whatever they are after reset. (Based on reports and
suggestion from Nate and Rob Bolin).
3. The `psm' driver now does not check the so-called sync. bit in the
first byte of the data packet by default, so that the tapping feature
of ALPUS GlidePoint works (based on reports from Louis Mamakos). I
tested the code with ALPUS Desktop GlidePoint (M/N GP101) and found
no problem; tapping worked. It appears ALPUS produces several models
of GlidePoint. I hope the other models are OK too.
The check code can still be activated by defining the PSM_CHECKSYNC
option in the config file. (The bit checking slightly reduces, if not
completely eliminates, weird mouse behavior cased by unsynchronized
mouse data packets. It also helps us to detect if the mouse interrupt
can ever be lost. But, well, if there are devices which cannot be
supported this way...)
4. The `psm' driver does not include the protocol emulation code by
default. The code can still be compiled in if the PSM_EMULATION option
is specified in the config file. Louis Mamakos suggests the emulation
code is putting too much in the kernel, and `moused' works well.
I will think about this later and decide if the entire emulation
code should be removed.
5. And, of course, the fix in `scprobe()' from Bruce to cure the
UserConfig problem. My code in `kbdio.c' is slightly different from
his patch, but has the same effect. There still is a possibility that
`scprobe()' gets confused, if, for whatever reasons, the user holds
down a key for very long time during the boot process. But we cannot
cope with everything, can we?
Submitted by: Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp)
decrease the size of buffer_map to approx 2/3 of what it used to be
(buffer_map can be smaller now.) The original commit of these changes
increased the size of buffer_map to the point where the system would
not boot on large systems -- now large systems with large caches will
have even less problems than before.
are always together with Framing Errors and they were incorrectly
treated as FE's and discarded.
Reorganized the BREAK/FE/PE tests.
Found by: NIST-PCTS
with sio devices (not perfectly, since there is no way to flush the tx
holding register on 8250-16450's. I'm not sure if resetting the fifos
flushes the tx shift register).
Reminded by: NIST-PCTS
is completely empty. There is no interrupt for output completion, so
poll for it every 10 ms after output is nearly complete. Now ttywait()
works right.
Reminded by: NIST-PCTS
registers.) Also clean up some namespace pollution, and remove
gcc-1 support (nothing really works with it anymore anyway.)
Submitted by: Bruce Evans <bde@freebsd.org> and me.
consistent stack frame in fastmove() so that only one new fault handler
is necessary.
Should be in 2.2. Harmless until the i586 versions are reenabled.
Per Wayne Scott of Intel, the old sequence took 20cycles!!! on a P6.
Another nice side-benefit is that the kernel is about 3K smaller!!!
Submitted by: Wayne Scott <wscott@ichips.intel.com>
the keyboard IO port definitions from <machine/console.h>.
Note: I do not have a machine available to test this yet, I sent this
for review to several people who have not replied.
This is also totally busted in 2.2, which has half of the syscons/psm/kbdio
changes in it. This really desperately needs to be tested and fixed
in 2.2 as well.
SCBs in response to a busfree.
When re-queueing an SCB that returned with QUEUE FULL status, reset its timeout.
Ensure that aborted SCBs have an error code set in there xs before it gets
passed back up with scsi_done.
Fix a few KNF nits.
uses /usr/include/sys/*, which may point to a different build tree. I'm
not sure that this is necessary, but there was a question mark over what
/usr/include/sys points to when building the "user mode" binaries in the
kernel code, especially when building the smp tree.
I suspect that the "right" line here is to use ${INCLUDES}, but that
causes warnings about unused static inline functions in stdio.h and ctype.h
The 'getchar' function in syscons (sccngetc) is used by UserConfig to
get keyboard input from the user. When it was modified to use the
shared keyboard port routines it used the port passed in during the
probe routine. Since the probe routine was not yet called, the port was
set to 0, which is obviously not going to work.
Pre-initialize sc_port to IO_KBD which is really a kludge, but it's how
the previous driver did it's job.
Found by: remote GDB
substantially increasing buffer space. Specifically, we double
the number of buffers, but allocate only half the amount of memory
per buffer. Note that VDIR files aren't cached unless instantiated
in a buffer. This will significantly improve caching.
do reset it from the QOUTCNT register inside a pause/unpause. This now happens
once per command complete interrupt in the paging case (one interrupt can be
for multiple completed commands). I may introduce a counter and do a lazy
update in the future, similar to what is done with the QINCNT.
Enhance the QUEUE FULL condition handling so that the number of openings will
be reduced. This has become more important now that the driver is faster.
This code really belongs in the gerneric SCSI layer, as will be the case once
3.0 gets the code from the 'SCSI' branch.
Add some #if 0'd out trace code I've been using to help debug sequencer
problems.
Fix the SCB paging problem that I was seeing. This was only on my 7850
controller and stems from the fact that its QINFIFO can only handle 3bit
SCB identifiers. This means that you can only have 8 transactions open at
a time with the current paging scheme to these controllers. The code added
to enforce this is generic in that it tests for the number of relevent bits
that the QINFIFO can store and adjusts the max accordingly. It may be possible
to come up with a scheme that allows for more than 8 commands at a time, but
I don't know that it is worth the effort simply to fix a low end card. The
aic7880 still can do 255.
This problem may be related to what Andrey was seeing since I don't have n
aic7770 rev E chip here to test on, but as soon as someone probes one of these
cards with this new code, the dmesg output will tell the whole story.
aic7xxx cards failing on certain motherboards, reverse the logic used to
control this feature. AHC_FORCE_PIO is replaced with AHC_ALLOW_MEMIO.
GENERIC no longer needs to specify the AHC_FORCE_PIO option since this is
the default.
user supplies a bad address, because they push a lot of stuff that the
fault handler doesn't know about onto the stack. This has been broken
for more than half a year despite being tested for almost half a year
in -current.
synthesizer. The utilities for this will appear as port submissions soon
afterwards, according to the submitter.
Submitted-By: Randall Hopper <rhh@ct.picker.com>
Written-By: Takashi Iwai <iwai@dragon.mm.t.u-tokyo.ac.jp>
with the copyright stuff fixed so soon (this should be merged into 2.2 when
you have a chance, Poul).
This is the new AWE32 driver, with support for the AWE32's fancy MIDI
synthesizer. The utilities for this will appear as port submissions soon
afterwards, according to the submitter.
Submitted-By: Randall Hopper <rhh@ct.picker.com>
Written-By: Takashi Iwai <iwai@dragon.mm.t.u-tokyo.ac.jp>
routines. An older version of this was tested successfully on all of my
systems with PS/2 mice. This was brought in without testing because it
is necessary due to the previously committed syscons changes.
Submitted by: Kazutaka Yokota <yokota@zodiac.mech.utsunomiya-u.ac.jp>
syscons and psm, curtesy Kazutaka Yokota with minor changes by
me. This contains an update of the psm driver as well.
This also fixes the breakage that I introduced to the psm driver by
making syscons poll for keyboard events in the atempt to fix the
hanging keyboard problem.
It works perfectly for me, and I'd like to hear from all that
have had keyboard/ps/2 mouse problems if this is the cure...
Submitted by: Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp)
wdreg.h: Delete wd_ctlr macro. PC98 version of wd.c treats it as a
variable.
GENERIC98: Delete ep0 entry. Current ep driver write I/O port 0x100.
This clobbers ICW of i8259, because upper 8bits of address line is not
masked on mother board.
if_fe.c: Merge from revision 1.18 of sys/i386/isa/if_fe.c.
pc98.c: Globalize dmapageport, because SCSI driver use this
variable.
wd82371.c: Yet another merge.
These are 2.2 candidates.
Submitted by: The FreeBSD(98) Development Team
almost complete control over RTS (control of its initial value is still
missing).
This fixes PR 1644 for sio.
The author of PR 1644 wants it in 2.1.6 and 2.2. This may be safe since
the complications are only in rarely used cases that I hope I've covered.
sys/pc98/i386/machdep.c: sync with i386/i386/machdep.c
sys/pc98/conf/options.pc98: sync with i386/conf/options.i386
sys/i386/isa/sound: DMA auto initialize mode support for PC98.
contributed by: Akio Morita <amorita@bird.scphys.kyoto-u.ac.jp>
Definite 2.2 material, I believe.
Submitted by: The FreeBSD (98) Development Team
one too small for (hex) 12345678 and 4 too small for -1234567890. Large
values can be created by config and userconfig although not (previously)
by visual userconfig.
Fixed a sign extension bug for backspacing on "negative" hex values in
editval().
Increased field width and range for `flags' so that all possible values
can be displayed and edited.
actually harmless.
2. Fixed code to match comment in scintr().
3. Don't allow even root to take control of the machine when securelevel > 0.
I've secured the accesses to PSL_IOPL in all drivers and asked pst to
review it, but he seems to be busy. Write access to /dev/kmem and
other critival devices currently leaks across raisings of securelevel
via open fd's, so there may as well be a similar leak for PSL_IOPL.
4. (Most important.) Don't corrupt memory beyond the screen buffers if
the cursor happens to be off the 80x25 screen when syscons starts.
5. Fix console cursor update (not perfect yet).
Submitted by: bruce
~
getting the same behavior using the flags, which can be done inside of
UserConfig. (Also document other syscons flags which were previously
undocumented).
Requested by: bde
negative-logic flags (flags 0x01 and 0x02 for npx0, defaulting to unset = on).
This changes the default from off to on. The options have been in current
for several months with no problems reported.
Added a boot-time negative-logic flag for the old I5886_FAST_BCOPY option
which went away too soon (flag 0x04 for npx0, defaulting to unset = on).
Added a boot-time way to set the memory size (iosiz in config, iosize in
userconfig for npx0).
LINT:
Removed old options. Documented npx0's flags and iosiz.
options.i386:
Removed old options.
identcpu.c:
Don't set the function pointers here. Setting them has to be delayed
until after userconfig has had a chance to disable them and until after
a good npx0 has been detected.
machdep.c:
Use npx0's iosize instead of MAXMEM if it is nonzero.
support.s:
Added vectors and glue code for copyin() and copyout().
Fixed ifdefs for i586_bzero().
Added ifdefs for i586_bcopy().
npx.c:
Set the function pointers here.
Clear hw_float when an npx exists but is too broken to use.
Restored style from a year or three ago in npxattach().
for get_diskinfo(), whose BIOS call sets %es:%edi in some cases, although
most documentation says that it doesn't change %edi in the cases that
happened to matter (for hard disks).
This shall be in 2.1.6 and 2.2.
Submitted by: Tor.Egge@idt.ntnu.no
(except I kept the unnecessary preservation of %edx and %ecx)
are adding new drivers...) to match, as best I can tell, majors.i386.
Improve behaviour when attempting to save changes for devices that should
not be changeable. Now correclty avoids non-device items, PCI devices and
devices with no isa_device structure.
Submitted by: (observations from) joerg, bde
uses one or the other. This required some changes to the ahc_reset()
function, and how early the probes had to allocate their softc.
Turn the AHC_IN/OUT* macros into inline functions and lowercase their names
to indicate this change. Geting AHC_OUTSB to work as a macro doing
conditional memory mapped I/O would have been too gross.
Stop setting STPWEN in the main driver and let the PCI front end do it
instead. It knows better.
Add the clearing of the QOUTQCNT variable during command complete processing
in the SCB paging case.
Go back to doing unconditional retries for the QUEUE FULL status condition.
This is really a kludge, but the code to handle it properly is on the SCSI
branch and will not make it into 2.2.
uses one or the other. This required some changes to the ahc_reset()
function, and how early the probes had to allocate their softc.
Turn the AHC_IN/OUT* macros into inline functions and lowercase their names
to indicate this change. Geting AHC_OUTSB to work as a macro doing
conditional memory mapped I/O would have been too gross.
This allows the user to add modify syscons's configuration flags using
UserConfig that will allow older/quirky hardware (most notably older IBM
ThinkPad laptops) to work with the standard boot kernel.
Inspired by: The Nomads
if I586_CPU is defined. Note there is a runtime check so the code
won't be run for non-Pentium CPUs anyway.
2.2 candidate, this code has been tested for almost half year in -current.
handlers if interrupts are nested more than a few (3) deep. This
only reduces the maximum nesting level by 1 with the standard
drivers unless there is a related bug somewhere, but can't hurt
much (the worst case is returning to hoggish interrupt handler like
wdintr(), but such interrupt handlers hurt anyway).
Fixed a previously harmless race incrementing the interrupt nesting
level.
This should be in 2.1.6 and 2.2.
hardware interrupt counts add up to the total. Previously, software
interrupts generated by splz() were counted in the total. These
software interrupts seem to be very rare - there have apparently been
0 of them on freefall among the last 352448857 interrupts.
will be renamed.
Fixed comments about unsupported network protocols.
ncr0 is a controller, not a device. This make no difference.
Added undocumented options DEVFS_ROOT, I586_CTR_GUPROF and I586_PMC_GUPROF.
Sorted undocumented options.
it automatically. The AHC_FORCE_PIO option wasn't having any effect because
the PCI probe code didn't include this file.
Fix some problems with the new sync and wide negotiation code. First off,
go back to async transfers by using a message reject again. The SCSI II and
III spec indicate that if a target's response to an initiater does not suit
(i.e. its too low), then performing a message reject is the appropriate
response. If, on the other hand, the initiator begins the negotiation and
we want to go async, we will send back an SDTR message with a 0 period and
offset.
Also fix a really bad negotiation problem caused by a missing "break". This
would usually hit people that had "smart" wide devices that immediately
attempt sync negotiation after a successful wide negotiation.
2.2 Candidate.
or list items which may look like devices but which don't have an
isa_device structure attached to them.
This _shouldn't_ be possible, but it appears to have been
observed-by: Joerg
3COM 3C590 Etherlink III PCI,
3COM 3C595 Fast Etherlink PCI,
3COM 3C592 Etherlink III EISA,
3COM 3C590 Fast Etherlink EISA,
3COM 3C900 Etherlink XL PCI and
3COM 3C905 Fast Etherlink XL PCI.
This driver is based on OpenBSD's driver. I modified it to run under FreeBSd
and made it actually work usefully.
Afterwards, nao@tom-yam.or.jp (HAMADA Naoki) added EISA support as well as
early support for 3C900 Etherlink XL PCI and 3C905 Fast Etherlink XL PCI.
He also split up the driver in a bus independant and bus dependant parts.
Especially the 3c59X support should be pretty stable now.
Submitted by: partly nao@tom-yam.or.jp (HAMADA Naoki)
Obtained from:partly OpenBSD
mappings with mlock. This problem only occurred because of the
quick unmap code not respecting the wired-ness of pages in the
process. In the future, we need to eliminate the dependency
intrinsic to the design of the code that wired pages actually
be mapped. It is kind-of bogus not to have wired pages mapped,
but it is also a weakness for the code to fall flat because
of a missing page.
This show fix a problem that Tor Egge has been having, and also
should be included into 2.2-RELEASE.
appearance of this bug was the malfunctioning -M option in GNU tar (it
worked only by explicitly specifying -L).
Reviewed by: bde, and partially corrected accoring to his comments
Candidate for 2.2, IMHO even for 2.1.6.
changes to the keyboard code in pcvt, this update_led() very often
caused pcvt to hang early at boot time.
(Eventually, a better solution should be found, but the simple
omission serves well as a workaround for something that is actually a
show-stopper class problem.)
Candidate for 2.2.
(1) deleted #if 0
pc98/pc98/mse.c
(2) hold per-unit I/O ports in ed_softc
pc98/pc98/if_ed.c
pc98/pc98/if_ed98.h
(3) merge more files by segregating changes into headers.
new file (moved from pc98/pc98):
i386/isa/aic_98.h
deleted:
well, it's already in the commit message so I won't repeat the
long list here ;)
Submitted by: The FreeBSD(98) Development Team
(1) Add #ifdef PC98:
sys/pc98/boot/biosboot/boot2.S
(2) Fix bug that made it impossible to boot from sd's other than unit 0:
sys/pc98/boot/biosboot/sys.c
(3) Delete redundant $Id$:
sys/pc98/pc98/clock.c (reject$B$5$l$k$+$b$7$l$J$$(B)
(4) unt -> u_int:
sys/pc98/pc98/if_ed.c
(5) Add support for rebooting by the hot-key sequence:
sys/pc98/pc98/kbdtables.h
(6) Display now looks like PC/AT version:
sys/pc98/pc98/npx.c
(7) Change comment to match that of PC/AT version:
sys/pc98/pc98/pc98.c
(8) Add function prototypes:
sys/pc98/pc98/pc98_machdep.c
(9) Include PC98 headers:
sys/pc98/pc98/sound/adlib_card.c
sys/pc98/pc98/sound/audio.c
sys/pc98/pc98/sound/dev_table.c
sys/pc98/pc98/sound/dmabuf.c
sys/pc98/pc98/sound/midi_synth.c
sys/pc98/pc98/sound/midibuf.c
sys/pc98/pc98/sound/opl3.c
sys/pc98/pc98/sound/oatmgr.c
sys/pc98/pc98/sound/sb16_dsp.c
sys/pc98/pc98/sound/sb16_midi.c
sys/pc98/pc98/sound/sb_card.c
sys/pc98/pc98/sound/sb_dsp.c
sys/pc98/pc98/sound/sb_midi.c
sys/pc98/pc98/sound/sb_mixer.c
sys/pc98/pc98/sound/sequencer.c
sys/pc98/pc98/sound/sound_config.h
sys/pc98/pc98/sound/sound_switch.c
sys/pc98/pc98/sound/soundcard.c
sys/pc98/pc98/sound/sys_timer.c
(10) Merge in PC98 changes:
sys/i386/isa/sound/os.h
(11) Deleted as result of 9. and 10. above:
sys/pc98/pc98/sound/ad1848_mixer.h
sys/pc98/pc98/sound/aedsp16.c
sys/pc98/pc98/sound/coproc.h
sys/pc98/pc98/sound/finetune.h
sys/pc98/pc98/sound/gus_hw.h
sys/pc98/pc98/sound/gus_linearvol.h
sys/pc98/pc98/sound/hex2hex.h
sys/pc98/pc98/sound/mad16.h
sys/pc98/pc98/sound/midi_ctrl.h
sys/pc98/pc98/sound/midi_synth.h
sys/pc98/pc98/sound/opl3.h
sys/pc98/pc98/sound/os.h
sys/pc98/pc98/sound/pas.h
sys/pc98/pc98/sound/sb_mixer.h
sys/pc98/pc98/sound/soundvers.h
sys/pc98/pc98/sound/tuning.h
Submitted by: The FreeBSD(98) Development Team
Check that a received packet isn't longer than MCLBYTES. This will
sometimes happen if a cable is plugged into or removed from a live
system.
Try to cater better for early receive interrupts.
This involves expanding the support of the SEEPROM routines to deal with
the larger SEEPROMs on these cards and providing a mechanism to share
SCB arrays between multiple controllers.
Most of the 398X support came from Dan Eischer.
ahc_data -> ahc_softc
Clean up some more type bogons I missed from the last pass.
Be more clear when handing the NO_MATCH condition. NO_MATCH can also
happen when the sequencer encounters an SCB we've asked to be aborted.
AHC_FORCE_PIO - This forces the driver to use PIO even on systems that
say they have memory mapped the controller's registers. This
seems to fix Ken Lam's problems. I've also placed this option
in the GENERIC kernel file so that we are guaranteed to install
even on these flakey machines.
AHC_SHARE_SCBS - This option attempts to share the external SCB SRAM on
the 398X controllers allowing a totoll of 255 non-paged SCBs.
This doesn't work quite yet, so this option is mostly here to
help 398X owners to experiment and give me feedback until this
works properly.
TIMER_FREQ.
Fixed missing splx() in scrn_timer(). The bug was harmless because of the
undocumented behaviour that the ipl is automatically restored for timeout
functions (see softclock()). Perhaps we should depend on this behaviour.
Fixed the ddb fix in rev.1.176. The in_debugger flag was no use because
it only works when the debugger is entered via the keyboard hotkey. The
debugger may be entered for breakpoints and traps, and the console putc
routine has no way of knowing when it was, so the console putc routine
must (almost?) always remove the cursor image.
Not fixed: console switching in ddb doesn't work (ISTR it working), and
console 0 shouldn't be switched to for the debugger hotkey unless console
0 is /dev/console.
Fixed side effects from calling add_keyboard_randomness() in the console
getc routine by not calling it. add_keyboard_randomness() currently
always reenables interrupts on 386's and 486's. This is very bad if the
console getc routine is called from the debugger and the debugger was
entered with interrupts disabled.
Fixed preservation of initial screen and now-bogus comment about it. It
was broken by setting the initial scr_buf to `buffer' instead of Crtat.
`buffer' was full of nulls and the first scroll cleared everything above
the things written through syscons.
Submitted by: bruce (bde@freebsd.org)
I decided to do this for every hardclock() call instead of lazily
in microtime(). The lazy method is simpler but has more overhead
if microtime() is called a lot.
CPU_THISTICKLEN() is now a no-op and should probably go away.
Previously it did nothing directly but had the side effect of
setting i586_last_tick for CPU_CLOCKUPDATE() and i586_avg_tick for
debugging. CPU_CLOCKUPDATE() now uses a better method and
i586_avg_tick is too much trouble to maintain.
Reduced nesting of #includes in the usual case.
Increased nesting of #includes when CLOCK_HAIR is defined. This
is a kludge to get typedefs for inline functions only when the
inline functions are used. Normally only kern_clock.c defines
this. kern_clock.c can't include the i386 headers directly.
Removed unused LOCORE support.
break when I remove LOCORE support from clock.h.
I586_CTR_MULTIPLIER_SHIFT = 32 from clock.h is actually still used, but
32 is so magic that it doesn't get used explicitly.
- Add support for memory mapped I/O.
- Use DMA to get SCBs down to the adapters.
- Remove old paging code.
- Be much smarter about how we allocate SCB space. The old, simple method
wasted almost half a page per SCB. Ooops.
- Make command complete interrupt processing more efficient.
- Break the monolithic ahc_intr into sub-routines. The sub-routines handle
rare, special case events so the function call is not a penalty and the
removal of the code from the main routine most likely improves performance
instruction prefech will work better and less code is pushed into the cache.
- Never, ever allow tagged queueing if a device has disconnection disabled.
- Clean up and simplify timeout code. Many of the changes are to handle the
new DMA scheme.
bit (0x0008) in the sc driver configuration line. This way it's easy to
boink a generic kernel.
Also, document and place in an opt_ file the #define's for overriding which
serial port is the system console.
Approved by: sos
following warning:
warning: ANSI C forbids braced-groups within expressions
Adding __extension__ before the statement-expression seems to work right.
Submitted by: bde (a *long* time ago)
there is keyboard input.
The mousepointer is shown again immediately if moved.
Also a function pointer used to install a userwritten extra
ioctl handler (sc_user_ioctl). This way its is possible to
install user defined videomodes etc etc. No further changes
should be in the kernel.
- use a more accurate and more efficient method of compensating for
overheads. The old method counted too much time against leaf
functions.
- normally use the Pentium timestamp counter if available.
On Pentiums, the times are now accurate to within a couple of cpu
clock cycles per function call in the (unlikely) event that there
are no cache misses in or caused by the profiling code.
- optionally use an arbitrary Pentium event counter if available.
- optionally regress to using the i8254 counter.
- scaled the i8254 counter by a factor of 128. Now the i8254 counters
overflow slightly faster than the TSC counters for a 150MHz Pentium :-)
(after about 16 seconds). This is to avoid fractional overheads.
files.i386:
permon.c temporarily has to be classified as a profiling-routine
because a couple of functions in it may be called from profiling code.
options.i386:
- I586_CTR_GUPROF is currently unused (oops).
- I586_PMC_GUPROF should be something like 0x70000 to enable (but not
use unless prof_machdep.c is changed) support for Pentium event
counters. 7 is a control mode and the counter number 0 is somewhere
in the 0000 bits (see perfmon.h for the encoding).
profile.h:
- added declarations.
- cleaned up separation of user mode declarations.
prof_machdep.c:
Mostly clock-select changes. The default clock can be changed by
editing kmem. There should be a sysctl for this.
subr_prof.c:
- added copyright.
- calibrate overheads for the new method.
- documented new method.
- fixed races and and machine dependencies in start/stop code.
mcount.c:
Use the new overhead compensation method.
gmon.h:
- changed GPROF4 counter type from unsigned to int. Oops, this should
be machine-dependent and/or int32_t.
- reorganized overhead counters.
Submitted by: Pentium event counter changes mostly by wollman
- use CROSSJUMP() and CROSSJUMP_LABEL() for conditional jumps from idle()
into cpu_switch() and vice versa.
- moved badsw code to after cpu_switch().
Cosmetic changes:
- moved sw0 string to be immediately after its caller (badsw).
- removed unused #include.
the one place that depended on it. wakeup() is now prototyped in
<sys/systm.h> so that it is normally visible.
Added nested include of <sys/queue.h> in <vm/vm_object.h>. The queue
macros are a more fundamental prerequisite for <vm/vm_object.h> than
the wakeup prototype and previously happened to be included by
namespace pollution from <sys/proc.h> or elsewhere.
controllers, it is an error to issue a command before the keyboard
has had time to reply to the previous command. Setting the LEDs
involves issueing 2 commands, so it never worked on these keyboards.
Fixed resetting of keyboard. It is possible for unprocessed
scancodes to be present when the reset routine is called. This
usually occurs after switching from one console driver to another
in userconfig. pcvt and syscons attempt to flush any stale scancodes,
but sometimes fail to do so because keyboard and/or keyboard
controller takes a long time to send the scancodes after reset
(scancodes are apparently not flushed by reset!). syscons handles
this later by not checking for errors at strategic places, but pcvt
was confused.
Use an impossible initial and failure mode setting for the LEDs
so that the LEDs always get set if they are possibly out of sync.
Added missing spltty() in update_led().
shipped with freebsd can be changed without modifying the Makefiles directly.
Creates: BOOT_FORCE_COMCONSOLE
BOOT_PROBE_KEYBOARD
BOOT_PROBE_KEYBOARD_LOCK
BOOT_COMCONSOLE (port value for console)
previous snap. Specifically, kern_exit and kern_exec now makes a
call into the pmap module to do a very fast removal of pages from the
address space. Additionally, the pmap module now updates the PG_MAPPED
and PG_WRITABLE flags. This is an optional optimization, but helpful
on the X86.
- fixed a sloppy common-style declaration.
- removed an unused macro.
- moved once-used macros to the one file where they are used.
- removed unused forward struct declarations.
- removed __pure.
- declared inline functions as inline in their prototype as well
as in theire definition (gcc unfortunately allows the prototype
to be inconsistent).
- staticized.
<net/if_arp.h> and fixed the things that depended on it. The nested
include just allowed unportable programs to compile and made my
simple #include checking program report that networking code doesn't
need to include <sys/socket.h>.
features are used without testing for i586 features that they depend
on. Configuring option PERFMON without configuring a suitable cpu
still doesn't fail right.
(1) Merged i386/i386/sb.h, deleted pc98/pc98/sb.h.
(2) pc98/conf/GENERIC8 looks more like i386/conf/GENERIC now.
(3) Fixed display bug in pc98/boot/biosboot/io.c.
(4) Prepare to merge memory allocation routines:
pc98/i386/locore.s
pc98/i386/machdep.c
pc98/pc98/pc98_machdep.c
pc98/pc98/pc98_machdep.h
(5) Support new board "C-NET(98)":
pc98/pc98/if_ed98.h
pc98/pc98/if_ed.c
(6) Make sure FPU is recognized for non-Intel CPUs:
pc98/pc98/npx.c
(7) Do not expect bss to be zero-allocated:
pc98/pc98/pc98.c
Submitted by: The FreeBSD(98) Development Team
I586_OPTIMIZED_BCOPY is configured.
Similarly for bzero/I586_OPTIMIZED_BZERO.
Fake 586's had better have a hardware FPU with non-broken exception
handling (we mask exceptions, but broken exception handling may trap
on the instructions that do the masking). I guess this means that
the routines won't work on most 386's or FPUless 486's even when they
have a h/w FPU.
These are based on using the FPU to do 64-bit stores. They also
use i586-optimized instruction ordering, i586-optimized cache
management and a couple of other tricks. They should work on any
i*86 with a h/w FPU, but are slower on at least i386's and i486's.
They come close to saturating the memory bus on i586's. bzero()
can maintain a 3-3-3-3 burst cycle to 66 MHz non-EDO main memory
on a P133 (but is too slow to keep up with a 2-2-2-2 burst cycle
for EDO - someone with EDO should fix this). bcopy() is several
cycles short of keeping up with a 3-3-3-3 cycle for writing. For
a P133 writing to 66 MHz main memory, it just manages an N-3-3-3,
3-3-3-3 pair of burst cycles, where N is typically 6.
The new routines are not used by default. They are always configured
and can be enabled at runtime using a debugger or an lkm to change
their function pointer, or at compile time using new options (see
another log message).
Removed old, dead i586_bzero() and i686_bzero(). Read-before-write is
usually bad for i586's. It doubles the memory traffic unless the data
is already cached, and data is (or should be) very rarely cached for
large bzero()s (the system should prefer uncached pages for cleaning),
and the amount of data handled by small bzero()s is relatively small
in the kernel.
Improved comments about overlapping copies.
Removed unused #include.
I have only tested the ABP5140 card and only with a single CDROM drive
but it seems to work fine. This driver relies on features found only in
the SCSI branch so will not work in -current until those changes
are brought in. It also doesn't have any error handling code *yet*.
The goal is to use this driver as the development platform for the new
generic SCSI layer error recovery/handling code.
PCI and EISA front ends will show up as soon as I get my hands on
the cards. There are also a few issues in the driver that I need
to clear up with AdvanSys before I can suggest sticking one of
these cards in your server. 8-)
Thanks to AdvanSys for releasing this code under a suitable copyright.
Obtained from: Ported from the Linux driver writen by
bobf@advansys.com (Bob Frey).
[long long] results when I last worked on them, but they are normally
used together with to daddr_t's and off_t's which are signed, so the
unsigned results did little except cause warnings.
The main change is from unsigned long unsigned int. It just needs to
be a 32-bit type and unsigned int is most natural. Using a non-long
type has the "advantage" of hiding bugs in the "machine-independent"
code where it prints foo_t's using %d or %x. These bugs are currently
hidden bug not compiling with -Wformat.
I tried changing vm_ooffset_t from long long to unsigned long long, but
that was wrong because vm_ooffset_t needs to be long to match off_t,
although file offsets are never negative.
Reviewed by: dyson
Staticized it in userconfig. The one in pcvt is unused.
Removed bogus unused arg to getchar(). This should not have compiled
in the USERCONFIG_BOOT case, but the getchar() was also non-prototyped
and defined in K&R style.
Staticized the badly named global variable `next'. Even static variables
should have a unique module-specific prefix so that they can be referenced
easily in debuggers, etc.
