option for System V semaphores. It appears that there are no overrides
in the code and each file has the following added.
options SYSVSEM # System V semaphores
+#options SEMMNI=10 # number of semaphore identifiers
+#options SEMMNS=60 # number of semaphores in system
+#options SEMUME=10 # max number of undo entries per process
+#options SEMMNU=30 # number of undo structures in system
options SYSVSHM # System V shared memory
If anyone thinks that this is incorrect for any of these files, please
correct it.
Note - the i386 port was not forgotten. It was done separately.
Three different IRQ:s can be selected for each event, 9, 11, or 13
(which selects hardware priority). More events to be added as they
are discovered. Do not use shb_intr_establish() to register IRQ 9, 11
or 13 anymore.
- pmap_enter()
- pmap_remove()
- pmap_protect()
- pmap_kenter_pa()
- pmap_kremove()
as described in pmap(9).
These calls are relatively conservative. It may be possible to
optimize these a little more.
and use appropriately
- create more helper macros:
. cdev__xyz_init(c,n), such as cdev__ocri_init() for
/* open, close, read, ioctl */, etc.
. cdev__xRy_init(c,n), where nullop is used instead of enodev to dummy out
method `R' and the comments now read /* xxx (read) yyy */ instead
. cdev__xyz_t_init(c,n,t) - as per cdev__xyz_init, but sets d_type = t
as well
- use seltrue instead of dev_noimpl(poll,*), as (IIRC) cdevsw.d_poll should
always DTRT WRT returning a valid result. (a few devices previously
incorrectly returned ENODEV)
- use dev_noimpl(stop,enodev) instead of dev_noimpl(stop,nullop) if tty
== 0, because it doesn't matter if dev_type_stop isn't implemented in that
case, and it allows the use of the cdev__xyz_init macros. certain ports
(sparc,sparc64,x68k) used the nullop method for dev_type_stop in a few
drivers, whereas everything else uses enodev
- ensure that the comments are accurate WRT the behaviour of a given entry
and add comments to describe exactly what they do (because it's
not totally obvious at a glance, due to the number juggling necessary
to frob the correct bits in SR):
CLI -> EXCEPT_DISABLE (sets SR.BL)
STI -> EXCEPT_ENABLE (clears SR.BL)
ECLI -> INTR_DISABLE (sets SR.I[0-3])
ESTI -> INTR_ENABLE (clears SR.I[0-3])
driver by Tohru Nisimura (a very good framework for a FB driver,
BTW!), using bits of Marcus's original driver for the hardware
access.
The main advantage of this version is that is uses rasops (which
is faster than the rcons stuff) and wsfont, so you can select the
console font in the kernel config file. Using the BOLD8x16 font,
you get an 80x30 console (vast improvement compared to the Gallant12x22
font).
thorpej