* Make S expand to an absolute path at compile time.
* Use `-S' rather than `-x' to remove debugging symbols.
* Garbage collect unused variables.
* Reverse a handful of port-specific changes that do not correspond to
the common build model and are not needed.
a boot string for firmware that can do this, such as the SPARC and
the sun3 models. It is currently silently ignored on all other
hardware now, however. The MD function "boot()" has been changed to
also take a char *.
message-in. The remaining transfer count restored when a device is
reselected needs to be saved. The saved value is needed to compute
the number of bytes transferred if another disconnect occurs. This
fixes a random read data corruption that occurs on certain disks that
may disconnect more than once in the middle of a DMA transfer.
physical memory is sized by a loop that writes data to the first
word in a page, (writes something else to settle the bus) and then reads
back the word it wrote. If the read succeeds, the amount of physical
memory is increased by one page.
This fails on a 5000/1xx with a memory subsystem filled with 8 low-density
(4Mbyte) SIMMs. The memory-decoding hardware aliases the 32Mbytes of
physical memory at physical addresses 0, and at 32M (and presumably
at 64 and 96Mbytes.) The contiguous aliasing causes the memory-sizing
loop to continue at 32 MBytes, testing the memory that's really
at address 0, overwriting and crashing the kernel.
Fixed (for 1.2) by reading the SIMM-decoder stride size from the
motherboard, and reducing the loop bound to 32Mbytes on a 5000/1xx
with low-density SIMMs. (Other models have a non-power-of-2 maximum
memory and so are not subject to _contigous_ aliasing of physical memory).
The physical memory-sizer claims to preserve memory contents
(specifically the contents of msgbuf). The loop writes different
values into two adjacent locations and reads the contents of the
first, to ensure that whatever is read back from the first location is
from memory and isn't just the first write persisting on the bus.
The loop preserved the value of the first location, but not the second,
resulting in the second test value ('ZZZZ') over-writing a word in msgbuf.
Show proper inquiry data when version >= 1, not <= 1 (SCSI-2 devices
now display their inquiry infor).
Correct transfer length passed to dk_unbusy (b_resid hasn't been
updated yet).
* Eliminate the #ifdef DS5000 and kernel config option DS5000 altogether.
option DS5000 was a hangover from 4.4bsd/pmax; it's never been clear
if it means "support for DS5000/200" or "support for any TC machine".
This implictly fixes pr 1828.
* Use the "tc.h" and NTC generated by config for a "tc? at mainbus"
where appropriate, intsead of #ifdef DS5000.
* Canonicalize the spelling of kernel options that enable support
for particular models. Use
DS5000_25 for the Personal Decstation aka MAXINE aka KN02-ca
DS5000_100 for the 5000/1xx series aka KMIN aka KN02-ba
DS5000_200 for the 5000/200 aka 3MAX aka KN02
DS500_240 for the 5000/240 aka 3MAXPLUS aka KN03
and change DS_5000_xxx to DS5000_xxx everywhere.
* Wrap the interrupt handlers for each model in the appropriate #ifdef,
instead of wrapping all of them with "#ifdef DS5000".
* Wrap the TC autoconfig for each model in the appropriate #ifdef.
* Eliminate the #ifdef DS5000 and kernel config option DS5000 altogether.
option DS5000 was a hangover from 4.4bsd/pmax; it's never been clear
if it means "support for DS5000/200" or "support for any TC machine".
This implictly fixes pr 1828.
* Use the "tc.h" and NTC generated by config for a "tc? at mainbus"
where appropriate, intsead of #ifdef DS5000.
* Canonicalize the spelling of kernel options that enable support
for particular models. Use
DS5000_25 for the Personal Decstation aka MAXINE aka KN02-ca
DS5000_100 for the 5000/1xx series aka KMIN aka KN02-ba
DS5000_200 for the 5000/200 aka 3MAX aka KN02
DS500_240 for the 5000/240 aka 3MAXPLUS aka KN03
and change DS_5000_xxx to DS5000_xxx everywhere.
* Wrap the interrupt handlers for each model in the appropriate #ifdef,
instead of wrapping all of them with "#ifdef DS5000".
the IOASIC attached devices. The DS3100 will now configure properly.
Fix the DS5000/25 IOASIC table entry for the RTC so the RTC interrupts
get enabled.
Fix up a moved include file.
configure properly. Also fix devices with TurboChannel and mainbus
attachments so they will work if no TurboChannel was configured.
Fix clock.c for a missing variable if not including NTP support.
Also remove some extraneous includes files or use the right ones.
configure properly. Also fix devices with TurboChannel and mainbus
attachments so they will work if no TurboChannel was configured.
Fix a panic when the dtop keyboard handler receieves a character
before the device has been opened.
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.
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.
mycroft