Commit Graph

10 Commits

Author SHA1 Message Date
Andrew Turner
a19c0b37e9 Add SMP support to the ARM PLATFORM code. This will allow us to have
different methods to start the secondary cores in a kernel built for
multiple SoCs, e.g. with the Allwinner A20 and A31.

Sponsored by:	ABT systems Ltd
Differential Revision:	https://reviews.freebsd.org/D5466
2016-02-28 13:43:58 +00:00
Andrew Turner
7133fe0f33 Almost all copies of platform_mp_init_secondary just called
intr_pic_init_secondary. Replace them with a direct call. On BCM2836
and ARMADA XP we need to add this function, but it can be empty.

Reviewed by:	ian, imp
Sponsored by:	ABT Systems Ltd
Differential Revision:	https://reviews.freebsd.org/D5460
2016-02-26 16:04:47 +00:00
Andrew Turner
3210b87554 Remove platform_mp_probe as it's almost identical on most ARM SoCs, and
slightly wrong on the others. We should just check if mp_ncpus is set to
more than one CPU as we may wish to run on a single core even when SMP is
available.

Reviewed by:	ian
Sponsored by:	ABT Systems Ltd
Differential Revision:	https://reviews.freebsd.org/D5458
2016-02-26 15:54:34 +00:00
Andrew Turner
6daa2c8751 Fix a mistake that crept in when moving between git and svn, pic_ipi_send
should not be called from platform_mp_init_secondary.

Sponsored by:	ABT Systems Ltd
2016-02-25 22:13:43 +00:00
Andrew Turner
243b36c321 Remove platform_ipi_send, it's an unneeded as all implementations are
identical.

Sponsored by:	 ABT Systems Ltd
2016-02-25 20:48:23 +00:00
Adrian Chadd
2b3ad18853 [intrng] Migrate the intrng code from sys/arm/arm to sys/kern/subr_intr.c.
The ci20 port (by kan@) is going to reuse almost all of the intrng code
since the SoC in question looks suspiciously like someone took an ARM
SoC design and replaced the ARM core with a MIPS core.

* migrate out the code;
* rename ARM_ -> INTR_;
* rename arm_ -> intr_;
* move the interrupt flush routine from intr.c / intrng.c into
  arm/machdep_intr.c - removing the code duplication and removing
  the ARM specific bits from here.

Thanks to the Star Wars: The Force Awakens premiere line for allowing
me a couple hours of quiet time to finish the universe builds.

Tested:

* make universe

TODO:

* The structure definitions in subr_intr.c still includes machine/intr.h
  which requires one duplicates all of the intrng definitions in
  the platform code (which kan has done, and I think we don't have to.)

  Instead I should break out the generic things (function declarations,
  common intr structures, etc) into a separate header.

* Kan has requested I make the PIC based IPI stuff optional.
2015-12-18 05:43:59 +00:00
Tijl Coosemans
ad3c3dbe18 Fix typo (s/ncpus/mp_ncpus/)
Reported by:	bz
2015-11-09 22:12:29 +00:00
Tijl Coosemans
27f38a8d69 Since r289279 bufinit() uses mp_ncpus, but some architectures set this
variable during mp_start() which is too late.  Move this to mp_setmaxid()
where other architectures set it and move x86 assertions to MI code.

Reviewed by:	kib (x86 part)
2015-11-08 14:26:50 +00:00
Ian Lepore
7ce00ee7b4 Rename arm_init_secondary_ic() -> arm_pic_init_secondary(). The latter is
the name the function will have when the new ARM_INTRNG code is integrated,
and doing this rename first will make it easier to toggle the new interrupt
handling code on/off with a config option for debugging.
2015-10-18 16:54:34 +00:00
Andrew Turner
31289e44b0 Enable SMP on the qemu virt platform. We use the device tree to find which
cpus to enable, and PSCI to start them.
2015-05-24 12:33:12 +00:00