drm/xe: Track parallel page fault activity in GT stats

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Add a new GT statistic, PARALLEL_PAGEFAULT_COUNT, to record when
multiple page fault workers are active concurrently.

When a worker dequeues a fault, scan peer workers for an active
cache entry and increment the counter if another fault is already
in flight. This provides basic visibility into parallel fault
handling behavior for performance analysis and tuning.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Maciej Patelczyk <maciej.patelczyk@intel.com>
Link: https://patch.msgid.link/20260806185202.3922432-13-matthew.brost@intel.com

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This commit is contained in:

Matthew Brost 2026-08-06 11:52:02 -07:00

parent d4a7e16117

commit aa8216142a

3 changed files with 21 additions and 1 deletions

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1

drivers/gpu/drm/xe/xe_gt_stats.c

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3

drivers/gpu/drm/xe/xe_gt_stats_types.h

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18

drivers/gpu/drm/xe/xe_pagefault.c

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