Commit Graph

6 Commits

Author SHA1 Message Date
Pedro F. Giffuni
6ce70ec7f9 sys/sparc64: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:10:39 +00:00
Marius Strobl
c61b6da840 - Search the whole OFW device tree instead of only the children of the
root nexus device for the CPUs as starting with UltraSPARC IV the 'cpu'
  nodes hang off of from 'cmp' (chip multi-threading processor) or 'core'
  or combinations thereof. Also in large UltraSPARC III based machines
  the 'cpu' nodes hang off of 'ssm' (scalable shared memory) nodes which
  group snooping-coherency domains together instead of directly from the
  nexus.
  It would be great if we could use newbus to deal with the different ways
  the 'cpu' devices can hang off of pseudo ones but unfortunately both
  cpu_mp_setmaxid() and sparc64_init() have to work prior to regular device
  probing.
- Add support for UltraSPARC IV and IV+ CPUs. Due to the fact that these
  are multi-core each CPU has two Fireplane config registers and thus the
  module/target ID has to be determined differently so the one specific
  to a certain core is used. Similarly, starting with UltraSPARC IV the
  individual cores use a different property in the OFW device tree to
  indicate the CPU/core ID as it no longer is in coincidence with the
  shared slot/socket ID.
  This involves changing the MD KTR code to not directly read the UPA
  module ID either. We use the MID stored in the per-CPU data instead of
  calling cpu_get_mid() as a replacement in order prevent clobbering any
  registers as side-effect in the assembler version. This requires CATR()
  invocations from mp_startup() prior to mapping the per-CPU pages to be
  removed though.
  While at it additionally distinguish between CPUs with Fireplane and
  JBus interconnects as these also use slightly different sizes for the
  JBus/agent/module/target IDs.
- Make sparc64_shutdown_final() static as it's not used outside of
  machdep.c.
2010-02-13 16:52:33 +00:00
Thomas Moestl
910d801895 Lower UPA_MEMSTART to 0x1c000000000. This is required for some larger
Enterprise machines.
2002-04-02 17:38:52 +00:00
Jake Burkholder
eb5b9c0be3 Add support for starting secondary cpus in kernel, as opposed to relying
on the loader to do it.  Improve smp startup code to be less racy and to
defer certain things until the right time.  This almost boots single user
on my dual ultra 60, it is still very fragile:

SMP: AP CPU #1 Launched!
Enter full pathname of shell or RETURN for /bin/sh:
# ls
Debugger("trapsig")
Stopped at      Debugger+0x1c:  ta              %xcc, 1
db> heh
No such command
db>
2002-03-04 07:12:36 +00:00
Jake Burkholder
502a371561 Add macros to extract the UPA module id from the UPA config register.
This is the hardware cpuid.
2002-02-23 19:54:34 +00:00
Thomas Moestl
d7ff50a055 Add upa.h, which I had previously forgotten, to unbreak the sparc64
kernel build.

Pointy hat to:	tmm
2002-01-08 16:25:51 +00:00