Commit Graph

3 Commits

Author SHA1 Message Date
Andrew Turner
a9056bbb93 Rename COUNT_IPI to INTR_IPI_COUNT to reduce the diff with intrng.
Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-03-18 16:29:58 +00:00
Andrew Turner
b2b5507779 Add support for SMP. This uses the FDT data to find the CPUs to start on,
and psci to start them. I expect ACPI support to be added later.

This has been tested on qemu with 2 cpus as that is the current value of
MAXCPUS. This is expected to be increased in the future as FreeBSD has
been tested on 48 cores on the Cavium ThunderX hardware.

Partially based on a patch from Robin Randhawa from ARM.

Approved by:	ABT Systems Ltd
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3024
2015-07-09 13:23:29 +00:00
Andrew Turner
e5acd89c78 Bring in the start of the arm64 kernel.
This is only the minimum set of files needed to boot in qemu. As such it is
missing a few things.

The bus_dma code is currently only stub functions with a full implementation
from the development tree to follow.

The gic driver has been copied as the interrupt framework is different. It
is expected the two drivers will be merged by the arm intrng project,
however this will need to be imported into the tree and support for arm64
would need to be added.

This includes code developed by myself, SemiHalf, Ed Maste, and Robin
Randhawa from ARM. This has been funded by the FreeBSD Foundation, with
early development by myself in my spare time with assistance from Robin.

Differential Revision:	https://reviews.freebsd.org/D2199
Reviewed by:	emaste, imp
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
2015-04-13 14:43:10 +00:00