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History log of /src/sys/arch/newsmips/apbus/xafb.c
RevisionDateAuthorComments
 1.21  07-Aug-2021  thorpej Merge thorpej-cfargs2.
 1.20  24-Apr-2021  thorpej branches: 1.20.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).
 1.19  21-Nov-2020  thorpej branches: 1.19.2;
malloc(9) -> kmem(9)
 1.18  21-Jul-2016  christos branches: 1.18.28;
Don't include <mips/locore.h> in <machine/intr.h>, introduces circular
dependencies; instead include it in the 4 driver files that need it,
and reorder it in machdep.c
 1.17  31-Jan-2014  tsutsui branches: 1.17.6; 1.17.10;
Add WSDISPLAYIO_LINEBYTES ioctl (for Xorg wsfb driver).
 1.16  15-May-2010  tsutsui branches: 1.16.8; 1.16.18; 1.16.22;
Set RI_NO_AUTO in ri_flg if init functions are invoked from cnattach.
Tested on NWS-3470D. xafb.c for NWS-5000 is untested.

XXX: isn't it better to have failsafe default than sprinkle RI_NO_AUTO
XXX: to avoid fatal silent hangup?
 1.15  09-Apr-2008  tsutsui branches: 1.15.4; 1.15.24; 1.15.26;
Split device_t/softc, with misc cleanup.
 1.14  04-Mar-2007  christos branches: 1.14.40;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.13  12-Apr-2006  jmmv branches: 1.13.14;
Add an extra cookie to the ioctl and mmap wsdisplay accessops that points
to the screen on which they are being called. The driver cannot guess
this by itself but it is needed to implement, at least, the getwschar and
putwschar functions in the correct place. There are no functional changes
yet.

Tested on i386 (vga, vga_raster, machfb, vesafb), macppc and sparc64.
Suggested and reviewed by macallan@.
 1.12  24-Dec-2005  perry branches: 1.12.4; 1.12.6; 1.12.8; 1.12.10; 1.12.12;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.
 1.11  11-Dec-2005  christos merge ktrace-lwp.
 1.10  03-Jun-2005  tsutsui branches: 1.10.2;
Appease gcc -Wcast-qual.
 1.9  06-Feb-2005  tsutsui Misc cleanup:
- ANSI function decls
- remove __P()
- u_intNN_t -> uintNN_t
- remove register decls
- bcopy -> memcpy, strcpy
- bzero -> memset
- bcmp -> memcmp
- use malloc(9) with M_ZERO
- some KNF
etc.
 1.8  01-Aug-2004  uch branches: 1.8.4; 1.8.6;
add NEWSMIPS_WSDISPLAYIO_GINFO ioctl to get frame buffer stride.
 1.7  13-Nov-2003  chs eliminate uvm_useracc() in favor of checking the return value of
copyin() or copyout().

uvm_useracc() tells us whether the mapping permissions allow access to
the desired part of an address space, and many callers assume that
this is the same as knowing whether an attempt to access that part of
the address space will succeed. however, access to user space can
fail for reasons other than insufficient permission, most notably that
paging in any non-resident data can fail due to i/o errors. most of
the callers of uvm_useracc() make the above incorrect assumption. the
rest are all misguided optimizations, which optimize for the case
where an operation will fail. we'd rather optimize for operations
succeeding, in which case we should just attempt the access and handle
failures due to insufficient permissions the same way we handle i/o
errors. since there appear to be no good uses of uvm_useracc(), we'll
just remove it.
 1.6  15-Jul-2003  lukem __KERNEL_RCSID()
 1.5  02-Oct-2002  thorpej branches: 1.5.6;
Use CFATTACH_DECL().
 1.4  27-Sep-2002  thorpej Declare all cfattach structures const.
 1.3  04-Jul-2002  junyoung alloc_attr -> allocattr

Approved by Matthias Drochner.
 1.2  17-Mar-2002  atatat branches: 1.2.4;
Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.
 1.1  06-Nov-2000  tsubai branches: 1.1.2; 1.1.6; 1.1.10;
"xa" frame buffer driver.
 1.1.10.3  18-Oct-2002  nathanw Catch up to -current.
 1.1.10.2  01-Aug-2002  nathanw Catch up to -current.
 1.1.10.1  01-Apr-2002  nathanw Catch up to -current.
(CVS: It's not just a program. It's an adventure!)
 1.1.6.3  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
 1.1.6.2  06-Sep-2002  jdolecek sync kqueue branch with HEAD
 1.1.6.1  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.1.2.2  22-Nov-2000  bouyer Sync with HEAD.
 1.1.2.1  06-Nov-2000  bouyer file xafb.c was added on branch thorpej_scsipi on 2000-11-22 16:01:06 +0000
 1.2.4.1  16-Jul-2002  gehenna catch up with -current.
 1.5.6.7  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.5.6.6  06-Feb-2005  skrll Sync with HEAD.
 1.5.6.5  27-Jan-2005  skrll Adapt to branch.
 1.5.6.4  21-Sep-2004  skrll Fix the sync with head I botched.
 1.5.6.3  18-Sep-2004  skrll Sync with HEAD.
 1.5.6.2  05-Aug-2004  skrll Fix some merge mistakes.
 1.5.6.1  03-Aug-2004  skrll Sync with HEAD
 1.8.6.1  12-Feb-2005  yamt sync with head.
 1.8.4.1  29-Apr-2005  kent sync with -current
 1.10.2.2  03-Sep-2007  yamt sync with head.
 1.10.2.1  21-Jun-2006  yamt sync with head.
 1.12.12.1  24-May-2006  tron Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
 1.12.10.1  19-Apr-2006  elad sync with head - hopefully this will work
 1.12.8.1  24-May-2006  yamt sync with head.
 1.12.6.1  22-Apr-2006  simonb Sync with head.
 1.12.4.1  09-Sep-2006  rpaulo sync with head
 1.13.14.1  12-Mar-2007  rmind Sync with HEAD.
 1.14.40.1  02-Jun-2008  mjf Sync with HEAD.
 1.15.26.1  30-May-2010  rmind sync with head
 1.15.24.1  17-Aug-2010  uebayasi Sync with HEAD.
 1.15.4.1  11-Aug-2010  yamt sync with head.
 1.16.22.1  18-May-2014  rmind sync with head
 1.16.18.2  03-Dec-2017  jdolecek update from HEAD
 1.16.18.1  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.16.8.1  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")
 1.17.10.1  26-Jul-2016  pgoyette Sync with HEAD
 1.17.6.1  05-Oct-2016  skrll Sync with HEAD
 1.18.28.1  14-Dec-2020  thorpej Sync w/ HEAD.
 1.19.2.1  21-Mar-2021  thorpej Give config_found() the same variadic arguments treatment as
config_search(). This commit only adds the CFARG_EOL sentinel
to the existing config_found() calls. Conversion of config_found_sm_loc()
and config_found_ia() call sites will be in subsequent commits.
 1.20.8.1  04-Aug-2021  thorpej Adapt to CFARGS().

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