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History log of /src/sys/arch/hp300/dev/ppi.c
RevisionDateAuthorComments
 1.48  18-Nov-2020  thorpej malloc(9) -> kmem(9)
 1.47  03-Sep-2018  riastradh branches: 1.47.12;
Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)
 1.46  25-Mar-2017  tsutsui branches: 1.46.12; 1.46.14;
Include <sys/kernel.h> for hz.

Compile test only. (no HP-IB devices here)
 1.45  25-Jul-2014  dholland branches: 1.45.4; 1.45.8; 1.45.12;
Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.
 1.44  16-Mar-2014  dholland branches: 1.44.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.
 1.43  28-Jul-2011  uebayasi branches: 1.43.2; 1.43.12; 1.43.16;
dev_t is uint64_t; use PRIx64 to print it. Fix DEBUG build.
 1.42  18-Jun-2008  tsutsui Make this compile.
 1.41  13-Jun-2008  cegger use device_lookup_private to get softc
 1.40  28-Apr-2008  martin branches: 1.40.2; 1.40.4;
Remove clause 3 and 4 from TNF licenses
 1.39  29-Mar-2008  tsutsui branches: 1.39.2; 1.39.4;
Split device_t/softc, and misc cosmetic changes.
 1.38  17-Oct-2007  garbled branches: 1.38.16;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.
 1.37  12-Jul-2007  he branches: 1.37.10;
Adapt to the new signature of callout_init().
 1.36  04-Mar-2007  christos branches: 1.36.2; 1.36.10;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.35  16-Feb-2007  ad branches: 1.35.2;
More spllowersoftclock() fallout.
 1.34  21-Jul-2006  tsutsui Some KNF.
 1.33  28-Mar-2006  thorpej Use device_unit().
 1.32  23-Feb-2006  thorpej branches: 1.32.2; 1.32.4; 1.32.6;
Use device_parent().
 1.31  11-Dec-2005  christos branches: 1.31.2; 1.31.4; 1.31.6;
merge ktrace-lwp.
 1.30  19-Feb-2005  tsutsui branches: 1.30.6;
Include "ioconf.h" for struct cfdriver *_cd decls.
 1.29  28-Aug-2004  thorpej branches: 1.29.4; 1.29.6;
Use ANSI function decls, static, and const.
 1.28  17-Nov-2003  tsutsui TAB/space cleanup.
 1.27  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.
 1.26  29-Jun-2003  fvdl branches: 1.26.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.
 1.25  29-Jun-2003  thorpej Adapt to ktrace/lwp changes.
 1.24  23-Oct-2002  jdolecek merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
 1.23  02-Oct-2002  thorpej Use CFATTACH_DECL().
 1.22  27-Sep-2002  thorpej Declare all cfattach structures const.
 1.21  06-Sep-2002  gehenna Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.
 1.20  15-Mar-2002  gmcgarry branches: 1.20.4;
Add RCSIDs.
 1.19  27-May-2000  thorpej branches: 1.19.6; 1.19.8; 1.19.12;
sleep() -> tsleep()
 1.18  23-Mar-2000  thorpej New callout mechanism with two major improvements over the old
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.
 1.17  05-Aug-1999  thorpej branches: 1.17.2;
Change the semantics of splsoftclock() to be like other spl*() functions,
that is priority is rasied. Add a new spllowersoftclock() to provide the
atomic drop-to-softclock semantics that the old splsoftclock() provided,
and update calls accordingly.

This fixes a problem with using the "rnd" pseudo-device from within
interrupt context to extract random data (e.g. from within the softnet
interrupt) where doing so would incorrectly unblock interrupts (causing
all sorts of lossage).

XXX 4 platforms do not have priority-raising capability: newsmips, sparc,
XXX sparc64, and VAX. This platforms still have this bug until their
XXX spl*() functions are fixed.
 1.16  12-Jan-1998  thorpej Update for changes to config.
 1.15  04-Oct-1997  thorpej Copyright assigned to The NetBSD Foundation.
 1.14  18-Jul-1997  jtk branches: 1.14.2;
remove old *_UNK style default defines, use standard names from locators.h
 1.13  02-Apr-1997  scottr Fix printf() and other warnings when compiled with DEBUG defined.
 1.12  31-Mar-1997  scottr Add prototypes, and make this compile with -Wall. Remove register
modifier from all declarations.
 1.11  30-Jan-1997  thorpej Convert to new-style autoconfiguration; old-style config is no longer
supported.
 1.10  13-Oct-1996  christos backout previous kprintf changes
 1.9  11-Oct-1996  christos printf -> kprintf, sprintf -> ksprintf
 1.8  14-Feb-1996  thorpej All interrupt routines (except the HIL; don't ask) now take a pointer
to a softc, rather than a unit number. Add a "dq_softc" member
to struct devqueue; this is a temporary measure until the
dma/controller/device callback spaghetti is untangled.

YAY! No more need for dcafastservice!

HIL: squish instances of "(void) splhil()" and "(void) spl0();".
 1.7  02-Dec-1995  thorpej Use a "match/attach" rather than "init" scheme for probing devices.
This is a step towards getting the drivers ready for new config.
 1.6  26-Oct-1994  cgd new RCS ID format.
 1.5  25-May-1994  mycroft Merge with 4.4-Lite.
 1.4  05-May-1994  mycroft Most of the changes needed to make this continue to run.
 1.3  10-Feb-1994  mycroft Add arg to ioctl functions. Clean up #includes.
 1.2  22-May-1993  cgd add rcsids to everything and clean up headers
 1.1  13-May-1993  cgd branches: 1.1.1;
Initial revision
 1.1.1.1  13-May-1993  cgd add hp300 kernel files. generic kernel files might need some help...
 1.14.2.1  14-Oct-1997  thorpej Update marc-pcmcia branch from trunk.
 1.17.2.1  20-Nov-2000  bouyer Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.
 1.19.12.4  11-Nov-2002  nathanw Catch up to -current
 1.19.12.3  18-Oct-2002  nathanw Catch up to -current.
 1.19.12.2  17-Sep-2002  nathanw Catch up to -current.
 1.19.12.1  01-Apr-2002  nathanw Catch up to -current.
(CVS: It's not just a program. It's an adventure!)
 1.19.8.2  10-Oct-2002  jdolecek sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work
 1.19.8.1  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.19.6.1  10-Oct-2001  fvdl Convert all remaining devices.
 1.20.4.1  17-May-2002  gehenna Add device switch.
 1.26.2.6  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.26.2.5  24-Jan-2005  skrll Adapt to branch.
 1.26.2.4  21-Sep-2004  skrll Fix the sync with head I botched.
 1.26.2.3  18-Sep-2004  skrll Sync with HEAD.
 1.26.2.2  03-Sep-2004  skrll Sync with HEAD
 1.26.2.1  03-Aug-2004  skrll Sync with HEAD
 1.29.6.1  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.29.4.1  29-Apr-2005  kent sync with -current
 1.30.6.4  03-Sep-2007  yamt sync with head.
 1.30.6.3  26-Feb-2007  yamt sync with head.
 1.30.6.2  30-Dec-2006  yamt sync with head.
 1.30.6.1  21-Jun-2006  yamt sync with head.
 1.31.6.1  22-Apr-2006  simonb Sync with head.
 1.31.4.1  09-Sep-2006  rpaulo sync with head
 1.31.2.1  01-Mar-2006  yamt sync with head.
 1.32.6.1  31-Mar-2006  tron Merge 2006-03-31 NetBSD-current into the "peter-altq" branch.
 1.32.4.1  19-Apr-2006  elad sync with head - hopefully this will work
 1.32.2.2  11-Aug-2006  yamt sync with head
 1.32.2.1  01-Apr-2006  yamt sync with head.
 1.35.2.1  12-Mar-2007  rmind Sync with HEAD.
 1.36.10.1  03-Oct-2007  garbled Sync with HEAD
 1.36.2.1  15-Jul-2007  ad Sync with head.
 1.37.10.1  06-Nov-2007  matt sync with HEAD
 1.38.16.3  29-Jun-2008  mjf Sync with HEAD.
 1.38.16.2  02-Jun-2008  mjf Sync with HEAD.
 1.38.16.1  03-Apr-2008  mjf Sync with HEAD.
 1.39.4.2  04-May-2009  yamt sync with head.
 1.39.4.1  16-May-2008  yamt sync with head.
 1.39.2.2  17-Jun-2008  yamt sync with head.
 1.39.2.1  18-May-2008  yamt sync with head.
 1.40.4.1  18-Jun-2008  simonb Sync with head.
 1.40.2.1  23-Jun-2008  wrstuden Sync w/ -current. 34 merge conflicts to follow.
 1.43.16.1  18-May-2014  rmind sync with head
 1.43.12.2  03-Dec-2017  jdolecek update from HEAD
 1.43.12.1  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.43.2.1  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")
 1.44.2.1  10-Aug-2014  tls Rebase.
 1.45.12.1  21-Apr-2017  bouyer Sync with HEAD
 1.45.8.1  26-Apr-2017  pgoyette Sync with HEAD
 1.45.4.1  28-Aug-2017  skrll Sync with HEAD
 1.46.14.1  10-Jun-2019  christos Sync with HEAD
 1.46.12.1  06-Sep-2018  pgoyette Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)
 1.47.12.1  14-Dec-2020  thorpej Sync w/ HEAD.

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