drm/i915: debugfs interface to manually reset the GPU

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Create a /debug/dri/%d/i915_wedged file to display the current wedged
status, and to enable setting that value. On an i965, this will also
trigger a GPU reset.

Useful in order to attempt to recover from some error conditions that
are not currently caught by the automatic hang detection code.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>

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Chris Wilson 2009-10-13 22:20:20 +01:00 • committed by Eric Anholt

parent aed5f1dc26

commit f3cd474bb2

1 changed files with 115 additions and 1 deletions

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drivers/gpu/drm/i915/i915_debugfs.c

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