drm/xe: Initialize GuC earlier during probe

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SR-IOV VF has limited access to MMIO registers. Fortunately, it is able
to access a curated subset that is needed to initialize the driver by
communicating with SR-IOV PF using GuC CT.
Initialize GuC earlier in order to keep the unified probe ordering
between VF and PF modes.

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240219130530.1406044-4-michal.winiarski@intel.com

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Michał Winiarski 2024-02-19 14:05:30 +01:00 • committed by Rodrigo Vivi

parent 8a4587ef9f

commit bf8ec3c3e8

4 changed files with 54 additions and 20 deletions

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6

drivers/gpu/drm/xe/xe_device.c

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57

drivers/gpu/drm/xe/xe_gt.c

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1

drivers/gpu/drm/xe/xe_gt.h

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10

drivers/gpu/drm/xe/xe_uc.c

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