drm/i915: Simplify testing for am-I-the-kernel-context?

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The kernel context (dev_priv->kernel_context) is unique in that it is
not associated with any user filp - it is the only one with
ctx->file_priv == NULL. This is a simpler test than comparing it against
dev_priv->kernel_context which involves some pointer dancing.

In checking that this is true, we notice that the gvt context is
allocating itself a i915_hw_ppgtt it doesn't use and not flagging that
its file_priv should be invalid.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170106152013.24684-5-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2017-01-06 15:20:13 +00:00

parent e8f9ae9b50

commit 984ff29f74

5 changed files with 21 additions and 5 deletions

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2

drivers/gpu/drm/i915/i915_gem.c

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13

drivers/gpu/drm/i915/i915_gem_context.c

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5

drivers/gpu/drm/i915/i915_gem_context.h

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2

drivers/gpu/drm/i915/intel_lrc.c

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4

drivers/gpu/drm/i915/intel_ringbuffer.c

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