to ensure trap code will work (that is 0 upto ${endkernel}) and leave the
rest to pmap_tlbmiss(). Mapping whole physmem into the kernel wired way
too many TLB entries, see
http://mail-index.netbsd.org/port-powerpc/2006/10/27/0000.html
for performance analysis. While there, be a bit more descriptive in
pmap_tlbmiss() comment and use macro instead of numeric constant.
OK by Simon Burge
introduced ppc4xx_tlb_reserve() API.
* ibm405gp UART0 used to be linear mapped. The VA happens to be inside kernel
segment, giving us the possibility of multiple VA matches in the TLB. This
is considered "programming error" by 405 core and results in "undefined
behaviour". We now avoid mapping peripherals in kernel segment.
* Some boards used to map hardwired RAM size. We now use the real size as
passed in by boot firmware.
pthread "related" panics like:
panic: remrunqueue: bit 18 not set
Stopped in pid 479.3 (exsprite) at netbsd:cpu_Debugger+0x10: lwz
r
0, r1, 0x14
db> bt
0x869abe00: at panic+0x1b4
0x869abe50: at remrunqueue+0x80
0x869abe60: at mi_switch+0x114
0x869abea0: at sa_unblock_userret+0x4e8
0x869abee0: at syscall_plain+0x224
0x869abf40: user SC trap #93 by 0x41949810: srr1=0xc030
r1=0x445fff40 cr=0x40000002 xer=0 ctr=0x41aae208 esr=0 pid=0x36
While there, cleanup IPL_ definitions somewhat and fix interrupt mask
calculation per spl(9).
OK by matt@
* ppc4xx_tlb_mapiodev(): resolve pa to va from reserved TLB entries
OK by matt@
XXX we'll keep TLB_NRESERVED defined until we fix explora to use new API
* don't try to decode vendor-specific PVR, print raw value instead.
* panic() if we see cache wasn't probed, we'd crash later anyway.
* rework the way PVR gets translated to core name.
* while there, normalize printf format ("%s: ...", device_xname(self), ...).
OK by matt@
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.
Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.
This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.
Approved by core@. Fixes PR port-evbmips/32362.
- Recalculate masks _after_ new interrupt handler is enqueued, otherwise
the very last one won't ever be enabled (from hannken@)
- We can't use splhigh() to protect intr_calculatemasks() since it would
use soon-to-be-invalid mask. Instead, fiddle PSL_EE directly as we do
in other places.
Reviewed and tested (evbppc/explora) by hannken@
- generic soft interrupts (ie. use powerpc/softintr.c)
- interrupt event counters (using the ones from powerpc/cpu.h:cpu_info
where appropriate)
- cleanup ibm4xx_intr.h, move implementation details to intr.c
Convert all affected evbppc platforms.
OK by simonb@, some points discussed with matt@
trace_is_enabled() to return TRUE if SYSCALL_DEBUG is defined, and g/c
all of the SYSCALL_DEBUG handling from individual system call dispatch
routines.
- proc_is_traced_p() -> trace_is_enabled(), to match trace_enter() and
trace_exit().
- trace_is_enabled() becomes a real function.
- Remove unnecessary include files from various files that used to care
about KTRACE and SYSTRACE, but do no more.
