drm/xe: Add device flag to enable PT mirroring across tiles

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Some multi-tile devices may want to mirror page tables across tiles for
memory-bandwidth reasons, while others may not. Add a device flag that
allows enabling or disabling page-table mirroring across tiles.

Setting the flag to true (the existing behavior) on PVC, but both modes
have been tested and are working on PVC.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Maarten Lankhorst <dev@lankhorst.se>
Reviewed-by: Francois Dugast <francois.dugast@intel.com>
Link: https://patch.msgid.link/20260925201526.1355279-18-matthew.brost@intel.com

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This commit is contained in:

Matthew Brost 2026-09-25 13:15:19 -07:00

parent f5708e761e

commit b490667e9d

7 changed files with 79 additions and 9 deletions

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2

drivers/gpu/drm/xe/xe_device_types.h

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5

drivers/gpu/drm/xe/xe_migrate.c

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2

drivers/gpu/drm/xe/xe_pci.c

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drivers/gpu/drm/xe/xe_pci_types.h

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36

drivers/gpu/drm/xe/xe_pt.c

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drivers/gpu/drm/xe/xe_vm.c

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drivers/gpu/drm/xe/xe_vm.h

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