drm/xe/guc: Skip access counter queue init for unsupported platforms

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Add a has_access_counter feature flag to the graphics IP descriptor
and skip writing parameters for the access counter queue in
guc_um_init_params(), leaving queue_params[2] zero-initialized
to signal unavailability to the GuC.

The queue_params[] array layout is fixed by firmware ABI, so we
maintain the structure with queues 0 and 1 (page fault request/response)
always configured, and queue 2 conditionally skipped based on the
has_access_counter flag.

Bspec: 59323
Cc: Stuart Summers <stuart.summers@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Suggested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Signed-off-by: Varun Gupta <varun.gupta1@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260225164748.2302380-1-varun.gupta@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>

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Himal Prasad Ghimiray 2026-02-25 22:17:48 +05:30 • committed by Tejas Upadhyay

parent 6bc6fec71a

commit 07eb8b5416

4 changed files with 18 additions and 0 deletions

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2

drivers/gpu/drm/xe/xe_device_types.h

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11

drivers/gpu/drm/xe/xe_guc_ads.c

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4

drivers/gpu/drm/xe/xe_pci.c

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1

drivers/gpu/drm/xe/xe_pci_types.h

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