[PATCH 0/2] Fixes for MI_REPORT_PERF_COUNT

Souza, Jose jose.souza at intel.com
Tue Dec 17 17:13:12 UTC 2024


On Tue, 2024-12-17 at 17:05 +0000, Souza, Jose wrote:
> On Mon, 2024-12-16 at 16:58 -0800, Umesh Nerlige Ramappa wrote:
> > OA programming sequence for query mode or MI_REPORT_PERF_COUNT requires
> > modifying some HW registers in the same hw context as the user exec
> > queue. User passes the exec_queue to the OA interface and OA
> > implementation submits an MI_LOAD_REGISTER_IMM to this queue to modify
> > the registers.
> > 
> > The OA implementation submits a batch mapped in GGTT to the user exec
> > queue and hence, some plumbing is added into relevant code to enable
> > that (as per suggestions from Matthew Brost).
> > 
> > v2: review rework
> 
> This series fixes GPU hang happening when close OA stream.
> 
> Tested-by: José Roberto de Souza <jose.souza at intel.com>

Ah can you add a Fixes tag to 8135f1c09dd2eecee7cb637f7ec9a29e57300eb8 ?
Would be nice to get this patch backported to older kernel releases.

> 
> > 
> > Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>
> > 
> > Umesh Nerlige Ramappa (2):
> >   xe: Allow a GGTT mapped batch to be submitted to user exec queue
> >   xe/oa: Use MI_LOAD_REGISTER_IMMEDIATE to enable OAR/OAC
> > 
> >  drivers/gpu/drm/xe/xe_oa.c              | 71 ++++++++++++++++++-------
> >  drivers/gpu/drm/xe/xe_ring_ops.c        |  5 +-
> >  drivers/gpu/drm/xe/xe_sched_job_types.h |  2 +
> >  3 files changed, 57 insertions(+), 21 deletions(-)
> > 
> 



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