drm/xe/vf: Introduce Memory Based Interrupts Handler

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The register based interrupts infrastructure does not scale
efficiently to allow delivering interrupts to a large number
of virtual machines. Memory based interrupt reporting provides
an efficient and scalable infrastructure.

Define handler to read and dispatch memory based interrupts.
We will use this handler in upcoming patch.

Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20231214185955.1791-8-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>

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This commit is contained in:

Michal Wajdeczko 2023-12-18 17:53:41 +01:00 • committed by Rodrigo Vivi

parent f15de1936f

commit a6581ebe76

7 changed files with 513 additions and 1 deletions

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4

drivers/gpu/drm/xe/Makefile

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7

drivers/gpu/drm/xe/xe_device.c

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5

drivers/gpu/drm/xe/xe_device.h

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5

drivers/gpu/drm/xe/xe_device_types.h

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430

drivers/gpu/drm/xe/xe_memirq.c

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26

drivers/gpu/drm/xe/xe_memirq.h

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37

drivers/gpu/drm/xe/xe_memirq_types.h

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