Re: [PATCH v4 0/3] perf/cxlpmu: Misc updates

On Thu, Jul 16, 2026 at 09:46:05AM -0700, Dave Jiang wrote:
> 
> 
> On 7/15/26 12:14 PM, Davidlohr Bueso wrote:
> > Hello,
> > 
> > Changes from v3 (https://lore.kernel.org/all/[email protected]/):
> >  - Validate the event vendor ID for CRB filtering, the Table 13-5
> >    event groups are scoped by the CXL VID in patch 3 (Richard).
> >  - Add Richard's Reviewed-by tag to patch 1.
> > 
> > Three patches for the CXL PMU driver.
> > 
> > Patch 1 is a standalone fix.
> > 
> > Patch 2 adds the CXL 4.0 events that hardware exposes but the
> > driver did not. It now precedes the filter work as the latter
> > refers to the new event group IDs.
> > 
> > Patch 3 implements Channel/Rank/Bank (CRB) filtering, now permitted
> > for all event groups that CXL 4.0 Table 13-5 allows Filter ID 1 on.
> > 
> > v2 was tested on real hardware. The v4 changes have been exercised
> > under qemu CPMU emulation (jic23 tree) + changes for the new events/Filter=1:
> > 
> >     https://lore.kernel.org/all/[email protected]/
> > 
> > Thanks!
> > 
> > Davidlohr Bueso (1):
> >   perf/cxlpmu: Fix 64-bit write to 32-bit HDM filter register
> > 
> > Harshal Thakkar (2):
> >   perf/cxlpmu: Add missing CXL 4.0 events
> >   perf/cxlpmu: Support Channel/Rank/Bank filter
> > 
> >  drivers/perf/cxl_pmu.c | 119 +++++++++++++++++++++++++++++++++++++++--
> >  1 file changed, 116 insertions(+), 3 deletions(-)
> > 
> > 
> > base-commit: d60ec36cab338dfe2ae40d73e9c8d6c4af70d2b8
> 
> For the series
> Reviewed-by: Dave Jiang <[email protected]>
> 
> 
> This is being picked up by the perf maintainer right?

Yeah, I'll grab it eventually. Just a bit swamped atm.

Will