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authorChris Wilson <chris@chris-wilson.co.uk>2017-08-16 11:52:05 +0300
committerChris Wilson <chris@chris-wilson.co.uk>2017-08-18 13:57:13 +0300
commit8bcbfb12818f811d63801b71d25809690d1798fc (patch)
tree530b7c882fc4cbba06f77f2f102d79545f73026d /drivers/gpu/drm/i915
parentf2f5c0610fbc251b127a6fffda6c651288695430 (diff)
downloadlinux-8bcbfb12818f811d63801b71d25809690d1798fc.tar.xz
drm/i915: Check context status before looking up our obj/vma
Since we keep the context around across the slow lookup where we may drop the struct_mutex, we should double check that the context is still valid upon reacquisition. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170816085210.4199-2-chris@chris-wilson.co.uk Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_execbuffer.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 359d5dc6d8df..044fb1205554 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -679,13 +679,6 @@ static int eb_select_context(struct i915_execbuffer *eb)
if (unlikely(!ctx))
return -ENOENT;
- if (unlikely(i915_gem_context_is_banned(ctx))) {
- DRM_DEBUG("Context %u tried to submit while banned\n",
- ctx->user_handle);
- i915_gem_context_put(ctx);
- return -EIO;
- }
-
eb->ctx = ctx;
eb->vm = ctx->ppgtt ? &ctx->ppgtt->base : &eb->i915->ggtt.base;
@@ -707,6 +700,12 @@ static int eb_lookup_vmas(struct i915_execbuffer *eb)
int slow_pass = -1;
int err;
+ if (unlikely(i915_gem_context_is_closed(eb->ctx)))
+ return -ENOENT;
+
+ if (unlikely(i915_gem_context_is_banned(eb->ctx)))
+ return -EIO;
+
INIT_LIST_HEAD(&eb->relocs);
INIT_LIST_HEAD(&eb->unbound);