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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-07-21 13:32:30 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-07-27 09:38:47 +0200 |
| commit | 77b25a972b5d4ed93b8a86d3e383ec2092fd89b1 (patch) | |
| tree | 2f92c0d44f24804ca12d067300df19d7d5474cea /drivers/gpu/drm/i915/i915_gem_request.c | |
| parent | ed454f2cd61a54d00c267e385c0600bae0761833 (diff) | |
| download | op-kernel-dev-77b25a972b5d4ed93b8a86d3e383ec2092fd89b1.zip op-kernel-dev-77b25a972b5d4ed93b8a86d3e383ec2092fd89b1.tar.gz | |
drm/i915: Make i915_gem_context_mark_guilty() safe for unlocked updates
Since we make call i915_gem_context_mark_guilty() concurrently when
resetting different engines in parallel, we need to make sure that our
updates are safe for the unlocked access.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170721123238.16428-12-chris@chris-wilson.co.uk
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_request.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_request.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c index d93a185..68e406a 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.c +++ b/drivers/gpu/drm/i915/i915_gem_request.c @@ -374,8 +374,7 @@ static void i915_gem_request_retire(struct drm_i915_gem_request *request) i915_gem_request_remove_from_client(request); /* Retirement decays the ban score as it is a sign of ctx progress */ - if (request->ctx->ban_score > 0) - request->ctx->ban_score--; + atomic_dec_if_positive(&request->ctx->ban_score); /* The backing object for the context is done after switching to the * *next* context. Therefore we cannot retire the previous context until |
