src-test/sys/riscv/include/param.h, branch release/11.3.0

src-test/sys/riscv/include/param.h, branch release/11.3.0 FreeBSD source tree https://cgit-dev.freebsd.org/src-test/atom?h=release%2F11.3.0 2016-02-24T16:50:34Z Add support for symmetric multiprocessing (SMP). 2016-02-24T16:50:34Z Ruslan Bukin br@FreeBSD.org 2016-02-24T16:50:34Z urn:sha1:17696c12f50a6358ec552eda3831470da2916bbb Tested on Spike simulator with 2 and 16 cores (tlb enabled), so set MAXCPU to 16 at this time. This uses FDT data to get information about CPUs (code based on arm64 mp_machdep). Invalidate entire TLB cache as it is the only way yet. Sponsored by: DARPA, AFRL Sponsored by: HEIF5 Import RISC-V machine headers. This is a minimal set required to compile 2015-12-17T18:44:30Z Ruslan Bukin br@FreeBSD.org 2015-12-17T18:44:30Z urn:sha1:8d7e7a98dba43452c9aad66017a1f6a1f62df9fa kernel and userland. Reviewed by: andrew, imp, kib Sponsored by: DARPA, AFRL Sponsored by: HEIF5 Differential Revision: https://reviews.freebsd.org/D4554