drm/i915: Remove redundant intel_autoenable_gt_powersave()

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Now that we always execute a context switch upon module load, there is
no need to queue a delayed task for doing so. The purpose of the delayed
task is to enable GT powersaving, for which we need the HW state to be
valid (i.e. having loaded a context and initialised basic state). We
used to defer this operation as historically it was slow (due to slow
register polling, fixed with commit 1758b90e38 ("drm/i915: Use a hybrid
scheme for fast register waits")) but now we have a requirement to save
the default HW state.

v2: Load the kernel context (to provide the power context) upon resume.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171112112738.1463-3-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2017-11-12 11:27:38 +00:00

parent 556fe36d09

commit 37cd33006d

5 changed files with 24 additions and 86 deletions

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11

drivers/gpu/drm/i915/i915_drv.c

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1

drivers/gpu/drm/i915/i915_drv.h

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31

drivers/gpu/drm/i915/i915_gem.c

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1

drivers/gpu/drm/i915/intel_drv.h

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66

drivers/gpu/drm/i915/intel_pm.c

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