Commit Graph

16 Commits

Author SHA1 Message Date
Jayachandran C.
833182b77e Updates for the RMI MIPS platform code
- set cache_coherent_dma flag in cpuinfo for XLR, this will make sure that
  BUS_DMA_COHERENT flag is handled correctly in busdma_machdep.c
- iodi.c, call device_get_name() just once
- clear RMI specific EIRR while intializing CPUs
- remove debug print in intr_machdep.c
2010-09-01 17:35:31 +00:00
Jayachandran C.
61b993a34f Clean up header files in RMI platform code (sys/mips/rmi), and remove
unused files.

- remove clock.c and clock.h, these are not used after the new timer
  code was added.
- remove duplicated include files, fix header file ordering, remove
  some unneeded includes.
- rename mips/rmi/shared_structs.h which contains the RMI boot loader
  interface to mips/rmi/rmi_boot_info.h. Remove unused files
  mips/rmi/shared_structs_func.h and sys/mips/rmi/shared_structs_offsets.h
- merge mips/rmi/xlrconfig.h and mips/rmi/rmi_mips_exts.h, and remove
  duplicated functions.
- nlge - minor change to remove unneeded argument.
- Add FreeBSD svn keyword for headers
2010-08-30 13:05:21 +00:00
Jayachandran C.
b47f51b4a0 Revamp XLR interrupt handling, the previous scheme does not work well on
SMP.

We used to route all PIC based interrupts to cpu 0, and used the per-CPU
interrupt mask to enable/disable interrupts. But the interrupt threads can
run on any cpu on SMP, and the interrupt thread will re-enable the interrupts
on the CPU it runs on when it is done, and not on cpu0 where the PIC will
still send interrupts to.

The fix is move the disable/enable for PIC based interrupts to PIC, we will
ack on PIC only when the interrupt thread is done, and we do not use the
per-CPU interrupt mask.

The changes also introduce a way for subsystems to add a function that
will be called to clear the interrupt on the subsystem. Currently This is
used by the PCI/PCIe for doing additional work during the interrupt
handling.
2010-08-27 19:53:57 +00:00
Jayachandran C.
30eb8eda72 XLR PIC code update and style(9) fixes.
- style(9) fixes to mips/rmi platform files
- update pic.h to add pic_setup_intr() and use pic_setup_intr() for setting
  up interrupts which are routed thru PIC.
- remove rmi_spin_mutex_safe and haslock, and make sure that the functions
  are called only after mutexes are available.
2010-08-25 11:49:48 +00:00
Jayachandran C.
135fcc6da0 Fixup mips/rmi for the new mips timer code(r210403). This will get XLR
booting again.

The code is a copy of the mips/mips/tick.c with minor modifications for
XLR interrupt handling. Disable mips/rmi/clock.c for now, the PIC based
timer code will be added later.
2010-07-27 09:22:41 +00:00
Randall Stewart
4542827d4d This pushes all of JC's patches that I have in place. I
am now able to run 32 cores ok.. but I still will hang
on buildworld with a NFS problem. I suspect I am missing
a patch for the netlogic rge driver.

JC check and see if I am missing anything except your
core-mask changes

Obtained from:	JC
2010-05-16 19:43:48 +00:00
Randall Stewart
0364c7f075 Some fixes to the current RMI interrupt handling, changes in this patch are:
- (cleanup) remove rmi specific 'struct mips_intrhand' - this is no
longer needed since 'struct intr_event' have all the required hooks
- add xlr_cpu_establish_hardintr, which has args for pre/post ithread
and filter hooks, so that the PCI code can add the PCI controller
interrupt ack code here
- make 'cpu_establish_hardintr' use the above function.
- (fix) change type of eirr/eimr from register_t to uint64_t. These
have to be 64bit otherwise we cannot handle interrupts from 32.
- (fix) use eimr to mask eirr before checking interrupts, so that we
will not handle masked interrupts.

Obtained from:  C. Jayachandran - c.jayachandran@gmail.com
2010-02-20 16:30:29 +00:00
Randall Stewart
0de4b0e622 Spacing changes in pic_ack and pic_delayed_ack 2010-01-26 14:33:57 +00:00
Randall Stewart
e015b3b4f0 To prevent a LOR we need to pass in
a lock flag in the pic routines. In
some places we hold the pic lock, others
we do not.
2010-01-26 05:11:48 +00:00
Randall Stewart
0e39bbc4dd Add missing function that doesintr naming and
init.
2009-12-23 14:55:33 +00:00
Randall Stewart
4ba9b90b06 Ok set in the values in clock 7 as in the
original codes (I had changed one by accident)
Also do the pic_ack/pic_delayed_ack after the interrupt
so we clear it. The clock with these changes starts working.
Its off doing a short/long short/long warning but it
now runs.

My NFS mount now works but has the same problem with
sbin/init (errno 8 ENOEXEC) so it panics with no init.

Either this is a problem with my buildworld.. OR its a
yet undiscovered RMI issue.
2009-11-11 22:36:19 +00:00
Randall Stewart
01f43c2740 a little more paran's 2009-11-09 19:22:57 +00:00
Randall Stewart
f40c80b188 White space changes 2009-10-29 21:14:10 +00:00
Randall Stewart
6e3272ee6f more Updates on the RMI code close to compiling now ;-) 2009-10-29 15:55:25 +00:00
Randall Stewart
8ab98910b4 Fix Copyright ;-) 2009-10-26 10:59:55 +00:00
Randall Stewart
8f28855b07 Adds the first files from the RMI work with my re-work of their
intr_machdep.c to use updated interfaces etc. More coming.. and
some day it may compile ;-)
2009-10-15 21:05:09 +00:00