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drm/i915: Remove superfluous wait_for_error() from throttle-ioctl

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The throttle-ioctl never touches the struct_mutex. It does, however, as
part of its ABI report whether the hardware is terminally wedged. For
that purposes, it only has to report the current state and not incur the
cost of checking/waiting every invocation, as we do not have to wait for
a reset before waiting on a request to ensure completion (that is baked
into the wait request implementation).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-3-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2016-10-28 13:58:26 +01:00
parent 7e941861c9
commit c92ac094a9
1 changed files with 0 additions and 4 deletions
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4
drivers/gpu/drm/i915/i915_gem.c
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@ -3705,10 +3705,6 @@ i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file)
struct drm_i915_gem_request *request, *target = NULL;
int ret;
ret = i915_gem_wait_for_error(&dev_priv->gpu_error);
if (ret)
return ret;
/* ABI: return -EIO if already wedged */
if (i915_terminally_wedged(&dev_priv->gpu_error))
return -EIO;