diff options
| author | Ali Mashtizadeh <ali@mashtizadeh.com> | 2026-01-30 09:12:17 +0000 |
|---|---|---|
| committer | Warner Losh <imp@FreeBSD.org> | 2026-02-27 21:22:16 +0000 |
| commit | e51ef8ae490fc9f73191f33e7ad388c2511c454a (patch) | |
| tree | b5644c5b723e8d249e2c9e9aaeb8a567813e971f /sys/dev/fdt | |
| parent | 00c0a1f0bf6c07e63384a389060dfc10924c0ed6 (diff) | |
hwpmc: Initial support for AMD IBS
This patch adds support for AMD IBS. It adds a new class of performance
counter that cotains two events: ibs-fetch and ibs-op events. Unlike
most existing sampled events, IBS events provide a number of values
containing extra information regarding the sample. To support this we
use the existing callchain event, and introduce a new flag for multipart
payloads. The first 8 bytes of the pc_sample contains a header that
defines up to four payloads.
Sponsored by: Netflix
Reviewed by: imp,mhorne
Pull Request: https://github.com/freebsd/freebsd-src/pull/2022
Diffstat (limited to 'sys/dev/fdt')
0 files changed, 0 insertions, 0 deletions