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History log of /src/sys/arch/hp300/stand/common/clock.c
RevisionDateAuthorComments
 1.15  17-May-2025  tsutsui Speed up hp300 netboot by reducing RTC access during timeout checks.

The read_bbc() function against HIL seems extremely slow.
It was being called on every timeout check via getsecs()
so it significantly slowed down loading a kernel via NFS.

In most cases (e.g., in common/if_le.c and libsa/net.c),
timeout checks are performed using getsecs() in busy loops
without any actual waiting. In such cases, it's not necessary
to read the precise time from the RTC on every call.

This change reduces the time to load the NetBSD/hp300 10.1 GENERIC kernel
via NFS from 260 seconds to 64 seconds on HP9000/382.
 1.14  15-Jan-2023  tsutsui branches: 1.14.6;
TAB/space cleanup.
 1.13  17-Nov-2014  christos branches: 1.13.50;
PR/49207: Kamil Rytarowski: Add sys/clock.h with generic time macros
(derived from clock_subr.h). Keep clock_subr.h with the kernel structures
and functions to reduce diffs, and have clock.h only include standalone
constants and macros.
 1.12  19-Apr-2014  tsutsui Add RTC support for HP9000/425e to bootloader too.

Also put several cleanup:
- make local functions and variables static
- use proper variable types
- some KNF

Note it turns out that extreme slowness of netboot on hp300 is
caused by the too slow access of the traditional RTC chip at intio
(i.e. netboot on 425e is so much faster than others). Oh well.
 1.11  08-Feb-2011  rmind branches: 1.11.4; 1.11.10; 1.11.14; 1.11.18; 1.11.28;
Remove clause 3 (UCB advertising clause) from the University of Utah
copyright. Confirmed by Mike Hibler, mike at cs.utah.edu - thanks!
Also, merge UCB and Utah copyright texts back into one, as they
originally were.

Extra verification by snj@.
 1.10  07-Feb-2011  tsutsui Resurrect and move retired ITE files that are still used by bootloaders.
 1.9  12-Jan-2009  tsutsui branches: 1.9.6; 1.9.8; 1.9.10;
Replace time_t values in libsa sources with the following two types
to avoid unnecessary 64 bit ops which would make binaries larger:

satime_t (currently unsigned int):
numbers in seconds returned by the machine dependent getsecs() function
which are used to measure relative time

saseconds_t (currently int):
numbers in seconds used to specify timeout to network drivers

Per discussion on current-users.
 1.8  25-Jun-2006  tsutsui branches: 1.8.58; 1.8.62; 1.8.70;
Fix unsigned/signed mismatch.
 1.7  11-Dec-2005  christos branches: 1.7.4; 1.7.8; 1.7.16;
merge ktrace-lwp.
 1.6  20-Feb-2005  tsutsui branches: 1.6.4;
Use ANSI function decls.
 1.5  07-Apr-2004  tsutsui branches: 1.5.4; 1.5.6;
Fix yet another y2k+1 bug.
 1.4  14-Nov-2003  tsutsui branches: 1.4.2;
Misc cleanup:
- KNF
- WARNSfy
- remove __P()
- remove register declarations
- const'ify some variables
- make some local functions/variables static
- bcopy -> memcpy
- bcmp -> memcmp
- bzero -> memset
- space/TAB fix
etc.
 1.3  07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.
 1.2  08-Nov-2001  gmcgarry branches: 1.2.2; 1.2.12; 1.2.18;
Use crufty old clock-handling code for now.
 1.1  04-Feb-1997  thorpej branches: 1.1.40; 1.1.42;
Complete and total reorganization of the hp300 boot code, modeled
closely after the build process used by NetBSD/alpha's boot code.
 1.1.42.1  12-Nov-2001  thorpej Sync the thorpej-mips-cache branch with -current.
 1.1.40.1  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.2.18.4  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.2.18.3  21-Sep-2004  skrll Fix the sync with head I botched.
 1.2.18.2  18-Sep-2004  skrll Sync with HEAD.
 1.2.18.1  03-Aug-2004  skrll Sync with HEAD
 1.2.12.1  12-Apr-2004  jmc Pullup rev 1.5 (requested by tsutsui in ticket #1665)

Fix yet another y2k+1 bug.
 1.2.2.2  08-Nov-2001  gmcgarry Use crufty old clock-handling code for now.
 1.2.2.1  08-Nov-2001  gmcgarry file clock.c was added on branch nathanw_sa on 2001-11-08 07:01:34 +0000
 1.4.2.1  11-Apr-2004  jmc Pullup rev 1.5 (requested by tsutsui in ticket #115)

Fix yet another y2k+1 bug.
 1.5.6.1  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.5.4.1  29-Apr-2005  kent sync with -current
 1.6.4.1  30-Dec-2006  yamt sync with head.
 1.7.16.1  13-Jul-2006  gdamore Merge from HEAD.
 1.7.8.1  26-Jun-2006  yamt sync with head.
 1.7.4.1  09-Sep-2006  rpaulo sync with head
 1.8.70.1  19-Jan-2009  skrll Sync with HEAD.
 1.8.62.1  04-May-2009  yamt sync with head.
 1.8.58.1  17-Jan-2009  mjf Sync with HEAD.
 1.9.10.2  17-Feb-2011  bouyer Sync with HEAD
 1.9.10.1  08-Feb-2011  bouyer Sync with HEAD
 1.9.8.1  06-Jun-2011  jruoho Sync with HEAD.
 1.9.6.1  05-Mar-2011  rmind sync with head
 1.11.28.1  10-Aug-2014  tls Rebase.
 1.11.18.1  18-May-2014  rmind sync with head
 1.11.14.2  03-Dec-2017  jdolecek update from HEAD
 1.11.14.1  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.11.10.1  21-May-2014  bouyer Pull up following revision(s) (requested by tsutsui in ticket #1058):
sys/arch/hp300/conf/files.hp300: revision 1.88
sys/arch/hp300/include/autoconf.h: revision 1.13
sys/dev/ic/sti.c: revision 1.17
sys/arch/hp300/dev/frodo.c: revision 1.31
sys/arch/hp300/conf/GENERIC: revision 1.173
sys/arch/hp300/hp300/machdep.c: revision 1.229
sys/arch/hp300/dev/frodo.c: revision 1.32
sys/arch/hp300/hp300/autoconf.c: revision 1.102
sys/arch/hp300/dev/frodoreg.h: revision 1.5
sys/arch/hp300/stand/common/ite_sti.c: revision 1.1
sys/arch/hp300/stand/common/itevar.h: revision 1.16
sys/arch/hp300/hp300/autoconf.c: revision 1.105
sys/arch/hp300/dev/sti_sgcvar.h: revision 1.1
sys/arch/hp300/stand/common/apci.c: revision 1.12
sys/arch/hp300/stand/common/apci.c: revision 1.13
sys/arch/hp300/dev/dnkbd.c: revision 1.6
sys/arch/hp300/dev/dnkbd.c: revision 1.7
sys/arch/hp300/stand/inst/version: revision 1.12
sys/arch/hp300/dev/com_frodo.c: revision 1.9
sys/arch/hp300/stand/common/ite.c: revision 1.17
sys/arch/hp300/conf/GENERIC: revision 1.181
sys/arch/hp300/dev/sti_sgc.c: revision 1.1
sys/arch/hp300/stand/common/dnkbd.c: revision 1.13
sys/arch/hp300/dev/sti_sgc.c: revision 1.2
sys/dev/ic/stivar.h: revision 1.8
sys/arch/hp300/dev/rtc.c: revision 1.21
sys/arch/hp300/conf/INSTALL: revision 1.56
sys/arch/hp300/conf/INSTALL: revision 1.58
sys/arch/hp300/stand/uboot/version: revision 1.19
sys/arch/hp300/stand/common/samachdep.h: revision 1.17
sys/arch/hp300/stand/common/clock.c: revision 1.12
sys/arch/hp300/dev/mcclock_frodo.c: revision 1.1
sys/arch/hp300/stand/Makefile.buildboot: revision 1.34
sys/arch/hp300/conf/files.hp300: revision 1.87
Add sti at sgc framebuffer.
Ported from OpenBSD by kiyohara@.
Fix a botch on switching from apci (and dca) to MI com(4) 10 years ago.
I.e. fix apci device address per FRODO_BASE macro change
in frodoreg.h rev 1.2. Now bootloader works with serial console
on HP425e (which has only com at frodo).
Thanks to miod@openbsd for providing his 425e.
Add sti(4) at sgc screen console support. From (the late) OpenBSD/hp300.
Tested on HP9000/425e, which was sent from Miod Vallat and
demonstrated at Open Source unConference 2014 Kagawa.
Check the service switch on 425e to select apci serial console.
Taken from OpenBSD/hp300. See the following comment for details:
> * Check the service switch. On the 425e, this is a physical
> * switch, unlike other frodo-based machines, so we can use it
> * as a serial vs internal video selector, since the PROM can not
> * be configured for serial console.
Add proper RealTime Clock support for HP9000/425e.
As the OpenBSD/hp300 page says 425e doesn't have the traditional
RTC at intio (as it also lacks DCA 16550 serial at intio?),
but after a few hour investigation it turns out that
425e uses mc146818 compatible calendar clock in
the Apollo "frodo" utility chip and the frodo chip on
425e actually has the 32kHz OSC and is actually backed up
by the onboard lithium battery.
Tested on HP425e (with mcclock) and HP362 (with old rtc).
Add RTC support for HP9000/425e to bootloader too.
Also put several cleanup:
- make local functions and variables static
- use proper variable types
- some KNF
Note it turns out that extreme slowness of netboot on hp300 is
caused by the too slow access of the traditional RTC chip at intio
(i.e. netboot on 425e is so much faster than others). Oh well.
Add proper consinit(9) support for sti(4) at sgc framebuffer on hp300.
The cnattach functions for sti(4) and service switch check method
for 425e in com_frodo.c are taken from OpenBSD.
The strategy how to choose the console device in hp300_cninit() is
quite diverged from 4.4BSD and OpenBSD so it's tweaked by me.
Also put several changes in sti_sgc.c to reduce diffs from OpenBSD/hp300.
Tested on 425e and 362 (which still uses gendiofb(4), not sti(4)).
XXX: sti(4) requires uvm_km_alloc(9) and uvm_map_protect(9)
to copy and call ROM functions on the executable memory region, so
it can be called before UVM and related initializations are complete.
Probably it's time to consider about MI "deferred consinit()" API
in init_main.c (or elsewhere) for modern complicated VM system...
Also fix the apci device address in dnkbd.c as apci.c rev 1.12:
http://mail-index.netbsd.org/source-changes/2014/04/10/msg053940.html
Finally dnkbd(4) is confirmed working at least on bootloader.
Thanks again to Miod Vallat.
Make the Apollo Domain keyboard actually work.
Tested on HP9000/425e and the keyboard model A1630-82001 R2 (RX-60857-HW)
provided by Miod Vallat. Mouse support needs more work.
Pull random notes on the Apollo Domain keyboard from ancient PR/3528.
Bump versions to denote recent 425e related changes.
Probe mcclock only on 425e to avoid an extra "not configured" message.
Add and enable sti(4) at sgc in install kernels for 425e.
Tested on both serial console and framebuffer console.
(switched by the service switch on the back panel)
 1.11.4.1  22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.13.50.1  22-Jun-2024  martin Pull up following revision(s) (requested by tsutsui in ticket #722):

sys/fs/cd9660/cd9660_util.c: revision 1.16
sys/arch/hp300/stand/common/clock.c: revision 1.14
sys/arch/hp300/stand/common/scsireg.h: revision 1.5
sys/arch/hp300/stand/common/scsireg.h: revision 1.6
sys/arch/hp300/stand/Makefile.buildboot: revision 1.38
sys/arch/hp300/include/bus.h: revision 1.23
sys/arch/hp300/stand/Makefile.buildboot: revision 1.39
sys/arch/hp300/stand/common/sd.c: revision 1.12
sys/arch/hp300/stand/common/prf.c: revision 1.6
sys/arch/hp300/stand/common/sd.c: revision 1.13
usr.sbin/installboot/installboot.8: revision 1.106
usr.sbin/installboot/Makefile: revision 1.59
sys/arch/hp300/stand/common/devopen.c: revision 1.14
usr.sbin/installboot/installboot.8: revision 1.107
sys/arch/hp300/stand/common/ite_dumb.c: revision 1.2
sys/arch/hp300/stand/common/devopen.c: revision 1.15
usr.sbin/installboot/installboot.8: revision 1.108
sys/fs/cd9660/cd9660_extern.h: revision 1.29
usr.sbin/installboot/installboot.8: revision 1.109
tools/Makefile.nbincludes: revision 1.11 (patch)
sys/arch/hp300/dev/rboxreg.h: revision 1.3
sys/arch/hp300/stand/common/scsivar.h: revision 1.5
sys/arch/hp300/dev/dnkbd.c: revision 1.14
sys/arch/hp300/hp300/trap.c: revision 1.156
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.12
sys/arch/hp300/dev/frodoreg.h: revision 1.6
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.13
sys/arch/hp300/stand/common/ite_sti.c: revision 1.2
sys/arch/hp300/stand/common/hil.c: revision 1.15
usr.sbin/installboot/arch/hp300.c: revision 1.18
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.14
sys/arch/hp300/dev/rbox.c: revision 1.4
usr.sbin/installboot/arch/hp300.c: revision 1.19
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.15
sys/sys/bootblock.h: revision 1.59
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.16
usr.sbin/installboot/installboot.h: revision 1.44
sys/arch/hp300/stand/mkboot/volhdr.h: file removal
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.17
sys/arch/hp300/dev/hpib.c: revision 1.45
usr.sbin/installboot/installboot.h: revision 1.45
usr.sbin/installboot/cd9660.c: revision 1.1
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.18
sys/arch/hp300/dev/topcatreg.h: revision 1.3
usr.sbin/installboot/cd9660.c: revision 1.2
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.19
sys/arch/hp300/stand/inst/inst.c: revision 1.25
sys/arch/hp300/stand/uboot/Makefile: revision 1.12
sys/arch/hp300/dev/dvbox.c: revision 1.4
sys/arch/hp300/dev/dma.c: revision 1.45
sys/arch/hp300/stand/uboot/Makefile: revision 1.13
sys/arch/hp300/stand/common/rd.c: revision 1.16
sys/arch/hp300/stand/inst/Makefile: revision 1.12
distrib/hp300/cdroms/installcd/Makefile: revision 1.4
sys/arch/hp300/stand/mkboot/volhdr.h: revision 1.6
sys/arch/hp300/stand/common/machdep.c: revision 1.16
usr.sbin/installboot/fstypes.c: revision 1.14
sys/arch/hp300/hp300/machdep.c: revision 1.238
sys/arch/hp300/include/cpu.h: revision 1.73
sys/arch/hp300/dev/diofbreg.h: revision 1.4
sys/arch/hp300/stand/common/scsi.c: revision 1.12
sys/arch/hp300/stand/common/netio.c: revision 1.19
sys/arch/hp300/stand/common/scsi.c: revision 1.13
sys/arch/hp300/dev/sti_sgc.c: revision 1.8
sys/arch/hp300/dev/rtc.c: revision 1.22
sys/arch/hp300/stand/mkboot/mkboot.c: revision 1.20
sys/arch/hp300/stand/common/conf.h: revision 1.4
sys/arch/hp300/hp300/autoconf.c: revision 1.111
sys/arch/hp300/stand/common/conf.c: revision 1.15
sys/arch/hp300/stand/mkboot/Makefile: revision 1.12
sys/arch/hp300/stand/mkboot/Makefile: revision 1.13
sys/arch/hp300/hp300/autoconf.c: revision 1.114
sys/arch/hp300/dev/dcmreg.h: revision 1.11
sys/arch/hp300/dev/diofbvar.h: revision 1.4
sys/arch/hp300/dev/dcm.c: revision 1.91
sys/fs/cd9660/cd9660_util.c: revision 1.15
sys/arch/hp300/dev/mcclock_frodo.c: revision 1.2

TAB/space cleanup.

installboot(8): formatting improvements

Use Ar foo instead of <foo>; this is mdoc.

Other formatting tweaks.
installboot(8): fix up markup

Don't overuse .Sy - when everything is highlighted, nothing is. Use
.Ic for options &c to get correct PostScript output (both are bold in
plain text).

Use Aq Ar inside .Pa, as both Pa and Ar are rendered as underscored
text in plain text output, and the distinction is lost.

Don't set examples in bold, but give them .Pp space around - they are
much easier to read this way.

Use consistent -width in FILES.
document how to use installboot on netbsd/vax.

PR/57909: Jan-Benedict Glaw: Don't include (build) timestamp when doing a
reproducible build
fix usage string, improve error handling.
add missing chunk for repro-build. fix gcc warnings.
avoid stringop truncation, fix copyright string to prevent assembler warnings.

Fix build as a tool (Jan-Benedict Glaw)

Fix integer overflow of strtol(3) for "loadpoint" address on ILP32 hosts.

This strtol(3) was introduced in rev 1.12 for PR/57909 after netbsd-10,
but it returns LONG_MAX (0x7FFFFFFF) for 0xFFF00000 on ILP32 hosts and
the wrong loadpoint causes "NOT ENOUGH MEMORY" error by the BOOTROMs
on loading uboot.lif on (at least) my 9000/360 and 9000/425t.

Misc cosmetic changes for mostly readability.
- KNF and add some newlines per blocks
- define and use proper bintobcd() macro
- make local functions and variables static

The same uboot.lif binaries are generated.

Rename ${PROGAOUT} -> ${PROGELF} to reflect reality.
Use proper signedness for the LIF file system data structures.

Ancient 4.3BSD used short and int for location, file size, file type,
and addresses etc. but all of them should be unsigned.

Also rename several variables and add comments for readability.
The LIF file system info can be found in "The HPDir Project" page:
https://www.hp9845.net/9845/projects/hpdir/
The same uboot.lif binaries are generated.

Add a preliminary CD boot support to uboot for preparation of PR/54455.
Briefly tested on mame, but not enalbed yet.

Recognize SCSI CD-ROM devices as a booted device properly.

Necessary for PR port-hp300/54455, to boot an md root root RAMDISK

kernel from CD-ROM without "WARNING: can't find match for bootdev:"
prompt.

Sync with src/sys/arch/hp300/stand/mkboot/volhdr.h rev 1.6.
https://mail-index.netbsd.org/source-changes/2024/05/07/msg151195.html

Use proper signedness for the LIF file system data structures.
mkboot should use this MI <sys/bootblock.h> and volhdr.h should
be removed soon.

Use MI <sys/bootblock.h> to refer LIF filesystem structures.
This should have been done when LIF definitions were initially added
to <sys/bootblock.h> for MI installboot(8).

Enable SUPPORT_CD on uboot.

Make cd9660_util.c usable in userland tools like installboot(8).

This was partially done for src/distrib/cdrom/macppc_installboot,
but more strict prototypes are necessary for native binary builds.

Install cd9660 related system headers for tools installboot(8) builds.

Reorder function prototypes per source files.

Add cd9660 support to search a bootloader file in the target file system.

Also add CD boot support for hp300, using a bootloader file in cd9660 fs.
This is a tool's part to close PR/54455.

HP 9000/300 machines read LIF directory entry allocated after
the LIF volume header at the top of the boot disk during bootstrap,
and a bootstrap file must be contiguously allocated on the disk
due to limitation of the LIF specification.

Current NetBSD/hp300's bootloader is larger than ~80KB so we have
to prepare a special 'boot' partition for FFS (that has only 8KB (ffsv1)
or 32KB (ffsv2) spaces) disks to put such a large bootloader.

On the other hand, on ISO9660 fs all files are allocated contiguously
so we can specify a bootloader file in the target ISO9660 directly
in the LIF directory entry.

Note we can simply use the existing "append" option to create bootable
CD ISO for hp300, but it looks some emulators (at leaset MAME) reject
such non-standard ISO files, i.e. with an appended bootloader file at
the end of the image.

Put a RAMDISK kernel and SYS_UBOOT into hp300 installcd to make it bootable.

This should finally close PR/54455.

Fix tools build errors on Cygwin.

Appease warnings on building tools/installboot on Cygwin.
 1.14.6.1  02-Aug-2025  perseant Sync with HEAD

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