Date: Tue, 13 Nov 2018 18:20:27 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r340400 - head/sys/riscv/include Message-ID: <201811131820.wADIKRCs019563@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: markj Date: Tue Nov 13 18:20:27 2018 New Revision: 340400 URL: https://svnweb.freebsd.org/changeset/base/340400 Log: RISC-V: Implement get_cyclecount(9). Add the missing implementation for get_cyclecount(9) on RISC-V by reading the cycle CSR. Submitted by: Mitchell Horne <mhorne063@gmail.com> Reviewed by: jhb MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D17953 Modified: head/sys/riscv/include/cpu.h Modified: head/sys/riscv/include/cpu.h ============================================================================== --- head/sys/riscv/include/cpu.h Tue Nov 13 18:12:06 2018 (r340399) +++ head/sys/riscv/include/cpu.h Tue Nov 13 18:20:27 2018 (r340400) @@ -38,6 +38,7 @@ #define _MACHINE_CPU_H_ #include <machine/atomic.h> +#include <machine/cpufunc.h> #include <machine/frame.h> #define TRAPF_PC(tfp) ((tfp)->tf_ra) @@ -86,8 +87,7 @@ static __inline uint64_t get_cyclecount(void) { - /* TODO: This is bogus */ - return (1); + return (rdcycle()); } #endif
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201811131820.wADIKRCs019563>