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authorDaniel Vetter <daniel.vetter@ffwll.ch>2016-12-06 12:26:30 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-12-06 12:26:48 +0300
commit75e75cbd55183ff12459666c0a1d3e71fe1481ab (patch)
treea1dc32cc055770736397f9cf9b68f9e176184943 /drivers/gpu/drm/i915/i915_guc_submission.c
parent58309befa82d81f6e9dc36a92d2a339ef2144535 (diff)
parent197aa6ed522cc44710687d3b02dd4e4573991416 (diff)
downloadlinux-75e75cbd55183ff12459666c0a1d3e71fe1481ab.tar.xz
Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Backmerge v4.9-rc8 to get at commit e94bd1736f1f60e916a85a80c0b0ebeaae36cce5 Author: Michel Dänzer <michel.daenzer@amd.com> Date: Wed Nov 30 17:30:01 2016 +0900 drm: Don't call drm_for_each_crtc with a non-KMS driver so I can apply Michel's follow-up patch. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_guc_submission.c')
-rw-r--r--drivers/gpu/drm/i915/i915_guc_submission.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 666dab7a675a..4462112725ef 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -629,11 +629,23 @@ static int guc_ring_doorbell(struct i915_guc_client *gc)
static void i915_guc_submit(struct drm_i915_gem_request *rq)
{
struct drm_i915_private *dev_priv = rq->i915;
- unsigned int engine_id = rq->engine->id;
+ struct intel_engine_cs *engine = rq->engine;
+ unsigned int engine_id = engine->id;
struct intel_guc *guc = &rq->i915->guc;
struct i915_guc_client *client = guc->execbuf_client;
int b_ret;
+ /* We keep the previous context alive until we retire the following
+ * request. This ensures that any the context object is still pinned
+ * for any residual writes the HW makes into it on the context switch
+ * into the next object following the breadcrumb. Otherwise, we may
+ * retire the context too early.
+ */
+ rq->previous_context = engine->last_context;
+ engine->last_context = rq->ctx;
+
+ i915_gem_request_submit(rq);
+
spin_lock(&client->wq_lock);
guc_wq_item_append(client, rq);
@@ -1520,6 +1532,7 @@ int i915_guc_submission_enable(struct drm_i915_private *dev_priv)
/* Take over from manual control of ELSP (execlists) */
for_each_engine(engine, dev_priv, id) {
engine->submit_request = i915_guc_submit;
+ engine->schedule = NULL;
/* Replay the current set of previously submitted requests */
list_for_each_entry(request,