drm/xe/guc: handle guc logical instance for paging engine

Browse source

In the GuC backend, we need a different logical instance when referring
to the reserved paging engine. Under the hood, this is still just the
same physical BSC engine, however from the GuC POV this is actually
re-mapped to a separate GUC_PAGING_CLASS, with the logical index
starting from zero.

The idea is to not leak this into the upper layers, since this is GuC
version specific, so the changes here are purely on the GuC side.

No functional change.

v2:
  - Add some kernel-doc to explain the usage.
  - Move the implementation to guc.c

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patch.msgid.link/20260626111520.487997-18-matthew.auld@intel.com

...

This commit is contained in:

Matthew Auld 2026-06-26 12:15:27 +01:00

parent 16c8849297

commit 07bb6ba655

7 changed files with 50 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

drivers/gpu/drm/xe/xe_gt_sriov_pf_debugfs.c

View file

3

drivers/gpu/drm/xe/xe_gt_sriov_pf_policy.c

View file

31

drivers/gpu/drm/xe/xe_guc.c

View file

1

drivers/gpu/drm/xe/xe_guc.h

View file

5

drivers/gpu/drm/xe/xe_guc_ads.c

View file

6

drivers/gpu/drm/xe/xe_guc_engine_activity.c

View file

7

drivers/gpu/drm/xe/xe_hw_engine_types.h

View file