drm/i915: Split intel_engine allocation and initialisation

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In order to reset the GPU early on in the module load sequence, we need
to allocate the basic engine structs (to populate the mmio offsets etc).
Currently, the engine initialisation allocates both the base struct and
also allocate auxiliary objects, which depend upon state setup quite
late in the load sequence. We split off the allocation callback for
later and allow ourselves to allocate the engine structs themselves
early.

v2: Different paint for the unwind following error.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170124110135.6418-1-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2017-01-24 11:01:34 +00:00

parent b403c8feaf

commit bb8f0f5abd

4 changed files with 81 additions and 23 deletions

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19

drivers/gpu/drm/i915/i915_drv.c

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3

drivers/gpu/drm/i915/i915_drv.h

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82

drivers/gpu/drm/i915/intel_engine_cs.c

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2

drivers/gpu/drm/i915/intel_lrc.h

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