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authorChris Wilson <chris@chris-wilson.co.uk>2017-08-26 14:09:35 +0300
committerChris Wilson <chris@chris-wilson.co.uk>2017-08-29 18:56:39 +0300
commitfc692bd31bc9dd17c7cc59abdb514a58964fc2a7 (patch)
treeaf034e277e252af435b7b556473ead7f1b205ce9
parentf36325f3789c1cf7f0d795ff180cade25ec3a586 (diff)
downloadlinux-fc692bd31bc9dd17c7cc59abdb514a58964fc2a7.tar.xz
drm/i915: Discard the request queue if we fail to sleep before suspend
If we fail to clear the outstanding request queue before suspending, mark those requests as lost. References: https://bugs.freedesktop.org/show_bug.cgi?id=102037 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170826110935.10237-3-chris@chris-wilson.co.uk Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b99a668f39a7..44a7cb0e8bad 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4590,7 +4590,8 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
* reset the GPU back to its idle, low power state.
*/
WARN_ON(dev_priv->gt.awake);
- WARN_ON(!intel_engines_are_idle(dev_priv));
+ if (WARN_ON(!intel_engines_are_idle(dev_priv)))
+ i915_gem_set_wedged(dev_priv); /* no hope, discard everything */
/*
* Neither the BIOS, ourselves or any other kernel