existence of the SCSI hardware in the boards adress region.
Thanks to Oster Nerhus for the detailed bug report and to Ralph Schmidt for
the recommended probing method.
in a more elegant way, but it works as is, and we need it now.
- Add a README and Makefile for the above. Note that this directory should
NOT be added to ../Makefile's SUBDIRS.
piece of hardware into kernel virtual memory (was only a guess 'til now).
XXX Unfortunately, the hardware vendor reserves the right to change this in
future DraCo revisions. We must rethink delay() and DELAY(), at least for the
DraCo, soon.
For these CPU's, you have to use the ptest operation to search the mmu
tables in order to decide whether it is a real bus error or just a
page fault or write protection violation.
Our old code assumed user space always when calling ptest, and
erroneously assumed the BUSERR bit in the ptest output (mmusr
register) is the only indication for bus errors to check.
In fact, we have to follow a multistage decision tree to decide. 68060
CPUs are much easier to handle correctly.
clear which switches the video signal on and which off.
Make all grf_??.c (which supported it) use the same polarity of the test.
While being here, use a > test instead of implicit != to make it extensible
to darker than dark values for power managment systems.
as the Fastlane Z3, but is different enough to let the kernel crash.
Closes PR #2492 by Matthias Scheler. [thanks also to Ralph Schmidt for
confirmation of the patch]
- 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.
is