properly, so go back to unflagging them all before processing any via1
interrupts. Perhaps this can be changed back when we get ADB code that
does not rely on the ROMs?
it into three pieces:
* locore.S, which contains generic mips locore code,
applicable for both r2000/r3000 and r4000s (in 32-bit mode).
* locore_r2000.S, which contains r2000/r3000 (MIPS-I) versions
of the locore functions that need mips-generation-specific
instructions or handling.
* locore_r4000.S, which contains r4000/r4400/r4600 (MIPS-III?) versions
of the locore functions that need mips-generation-specific
instructions or handling.
Much of the code in locore_r4000.S is derived from Per Fogelstrom's Pica port.
locore.S still contains some pmax-specific DMA-buffer copy functions.
to the mips tree.
* Add declarations of functions used by vm_machdep.c.
* Add declarations of functions printed by name in stack tracebacks.
* Add declarations of functions used by the model-independnet mips machdep.c
code.
symbolic lookup of the CPU-level specific locore entry points to use the
r2k, not the r4k, labels.
Include header files to get prototyped declarations of ipintr() and arpintr().
Remove unused variables and parenthesize assignments in if () expressions.
Gcc warns of a possible && vs || operator-precedence bug in the network
softint dispatch code, which needs more thought.
interrupts only after the condition that caused the interrupt has been
cleared. This is a particular problem with the 5380 SCSI controller,
since the Mac glue logic may raise (e.g.) the SCSI DRQ interrupt a number
of times during the course of a normal transfer. By waiting to unflag it,
we effectively ignore all but the first.
- grf_cv.c, grf_cvreg.h, ite_cv.c: some cleanups
- grf_rh.c, grf_rhreg.h, grf_rt.c: new blank ioctl and some KNF
- grf_et.c, grf_etreg.h, ite_et.c: new graphics driver for et4000 based board
(oMniBus, Domino and Merlin)
- grfabs_cc: fix PR#2034
- grfvar.h: new grfunit for GRF_ET4000_UNIT
- scsidefs.h: no longer useful
- zbus.c: new entries for: Piccolo SD64, oMniBus, Domino and Merlin
- new fbio.h in arch/amiga/include, defining only FBIOSVIDEO
- add an IOCTL translation to arch/amiga/dev/grf.c
- add screenblank to the list of specials to build on amiga.
locore calls to go via a locore-entry jumptable.
Use the mips/mips/mips_machdep.c code to initialize locore state,
exception vectors, and the locore entry vector, instead of doing
it all in mach_init().
Update dumpsys() to use new-style signatures for dump routines,
even though the pmax SCSI drivers don't actually support dumping kernel
memory.
locore calls to go via a locore-entry jumptable.
Cast the (int) arguments to MachTLBUpdateEntry() to avoid
warnings. Variables TLB entries are still type-punned as either structs
or ints, without any regard, when the pmax-specific VM code passes
them as arguments to functions.
locore calls to go via a locore-entry jumptable.
Use mips_btop(), mips_round_page, mips_trunc_seg() instead
of pmax_btop(), pmax_round_page, pmax_trunc_seg().
Add Per's software-readonly-bit mechanism, since the r2000 and r4000
hardware TLB entries are very different, and the r4k has no space for
software bits in TLB entries. That is, this pmap code still won't work
on r4000 machines. Some other solution, like another jump table for
clients of the pmap code, is necessary.
locore calls to go via a locore-entry jumptable.
Declare r2000- and r4000-specific exception-handler functions, to which
trap() and interrupt() dispatch exceptions. Initialize r2000- and r4000-
specific exception-handler vectors, when CPU_R4000 and CPU_R2000 are
defined.
Update the stack-traceback code (partially) to understand and print
the new low-level exception-handler code, via which machine exception-vectors
send exceptions to call trap() or interrupt(). This needs more work.
It just causes a kernel panic, and will until the rest of the pmax
autoconfiguration is redone to use a bus-specific probe and attach
argument, or until KN01 devices are no longer attached to the mainbus.
an vector (struct) of function pointers. Add prototype declarations for
each vector entry.
Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore
versions of the relevant functions.
update the 4.3bsd/Ultrix-compatible qvss-style mmap'ed framebuffer/input-event
code to use mips_round_page() et.al., not pmax_round_page().
Add explicit "int" return types to functions. Add prototyped forward
declarations.
Fix the the definitions of dtop cdevsw entry point functions to match
their declarations. Add explicit "int" declarations to functions.
Add prototyped declarations for all local functions.
Return zero from dtopstop().
Include the external declarations from dtopvar.h.
pk