From: Chris Wilson Date: Wed, 16 Aug 2017 08:52:05 +0000 (+0100) Subject: drm/i915: Check context status before looking up our obj/vma X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8bcbfb12818f811d63801b71d25809690d1798fc;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 Cc: Tvrtko Ursulin Cc: Joonas Lahtinen Cc: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20170816085210.4199-2-chris@chris-wilson.co.uk Reviewed-by: Mika Kuoppala --- 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);