drm/xe: Add migrate layer functions for SVM support

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Add functions which migrate to / from VRAM accepting a single DPA
argument (VRAM) and array of dma addresses (SRAM). Used for SVM
migrations.

v2:
 - Don't unlock job_mutex in error path of xe_migrate_vram
v3:
 - Kernel doc (Thomas)
 - Better commit message (Thomas)
 - s/dword/num_dword (Thomas)
 - Return error on to large of migration (Thomas)

Signed-off-by: Oak Zeng <oak.zeng@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-21-matthew.brost@intel.com

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Matthew Brost 2025-03-05 17:26:45 -08:00

parent 77613a2e10

commit 9c44fd5f6e

2 changed files with 185 additions and 0 deletions

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175

drivers/gpu/drm/xe/xe_migrate.c

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10

drivers/gpu/drm/xe/xe_migrate.h

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