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* [CI 1/3] drm/i915: Introduce execlist_port_* accessors
@ 2017-11-30 12:45 Mika Kuoppala
  2017-11-30 12:45 ` [CI 2/3] drm/i915: Move execlists port head instead of memmoving array Mika Kuoppala
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Mika Kuoppala @ 2017-11-30 12:45 UTC (permalink / raw)
  To: intel-gfx

From: Mika Kuoppala <mika.kuoppala@intel.com>

Instead of trusting that first available port is at index 0,
use accessor to hide this. This is a preparation for a
following patches where head can be at arbitrary location
in the port array.

v2: improved commit message, elsp_ready readability (Chris)
v3: s/execlist_port_index/execlist_port (Chris)
v4: rebase to new naming
v5: fix port_next indexing
v6: adapt to preempt
v7: improved _port_next (Chris)
v8: whitespace, for loop (Chris),
    find_first_unset and GEM_BUG_ON after next_port in guc submission

Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gpu_error.c       |  5 +-
 drivers/gpu/drm/i915/intel_engine_cs.c      | 18 +++++---
 drivers/gpu/drm/i915/intel_guc_submission.c | 71 ++++++++++++++++++++---------
 drivers/gpu/drm/i915/intel_lrc.c            | 55 +++++++++++++---------
 drivers/gpu/drm/i915/intel_ringbuffer.h     | 44 +++++++++++++++++-
 5 files changed, 139 insertions(+), 54 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 876be8f1d930..02bae7d697da 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1350,11 +1350,12 @@ static void engine_record_requests(struct intel_engine_cs *engine,
 static void error_record_engine_execlists(struct intel_engine_cs *engine,
 					  struct drm_i915_error_engine *ee)
 {
-	const struct intel_engine_execlists * const execlists = &engine->execlists;
+	struct intel_engine_execlists * const execlists = &engine->execlists;
 	unsigned int n;
 
 	for (n = 0; n < execlists_num_ports(execlists); n++) {
-		struct drm_i915_gem_request *rq = port_request(&execlists->port[n]);
+		struct drm_i915_gem_request *rq =
+			port_request(execlists_port(execlists, n));
 
 		if (!rq)
 			break;
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 86d4c85c8725..e36e896d2f84 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1669,7 +1669,7 @@ static void print_request(struct drm_printer *m,
 void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *m)
 {
 	struct intel_breadcrumbs * const b = &engine->breadcrumbs;
-	const struct intel_engine_execlists * const execlists = &engine->execlists;
+	struct intel_engine_execlists * const execlists = &engine->execlists;
 	struct i915_gpu_error * const error = &engine->i915->gpu_error;
 	struct drm_i915_private *dev_priv = engine->i915;
 	struct drm_i915_gem_request *rq;
@@ -1782,16 +1782,20 @@ void intel_engine_dump(struct intel_engine_cs *engine, struct drm_printer *m)
 
 		rcu_read_lock();
 		for (idx = 0; idx < execlists_num_ports(execlists); idx++) {
-			unsigned int count;
+			struct execlist_port *port;
+			unsigned int count, idx_abs;
+
+			port = execlists_port(execlists, idx);
+			idx_abs = port_index(port, execlists);
 
-			rq = port_unpack(&execlists->port[idx], &count);
+			rq = port_unpack(port, &count);
 			if (rq) {
-				drm_printf(m, "\t\tELSP[%d] count=%d, ",
-					   idx, count);
+				drm_printf(m, "\t\tELSP[%d:%d] count=%d, ",
+					   idx, idx_abs, count);
 				print_request(m, rq, "rq: ");
 			} else {
-				drm_printf(m, "\t\tELSP[%d] idle\n",
-					   idx);
+				drm_printf(m, "\t\tELSP[%d:%d] idle\n",
+					   idx, idx_abs);
 			}
 		}
 		drm_printf(m, "\t\tHW active? 0x%x\n", execlists->active);
diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
index 912ff143d531..615782744093 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -697,16 +697,18 @@ static void guc_submit(struct intel_engine_cs *engine)
 {
 	struct intel_guc *guc = &engine->i915->guc;
 	struct intel_engine_execlists * const execlists = &engine->execlists;
-	struct execlist_port *port = execlists->port;
 	unsigned int n;
 
 	for (n = 0; n < execlists_num_ports(execlists); n++) {
+		struct execlist_port *port;
 		struct drm_i915_gem_request *rq;
 		unsigned int count;
 
-		rq = port_unpack(&port[n], &count);
+		port = execlists_port(execlists, n);
+		rq = port_unpack(port, &count);
+
 		if (rq && count == 0) {
-			port_set(&port[n], port_pack(rq, ++count));
+			port_set(port, port_pack(rq, ++count));
 
 			flush_ggtt_writes(rq->ring->vma);
 
@@ -715,6 +717,22 @@ static void guc_submit(struct intel_engine_cs *engine)
 	}
 }
 
+static struct execlist_port *
+port_find_first_unset(struct intel_engine_execlists * const execlists,
+		      struct execlist_port * const prev)
+{
+	struct execlist_port *port = execlists_port_next(execlists, prev);
+
+	while (port != prev) {
+		if (!port_isset(port))
+			return port;
+
+		port = execlists_port_next(execlists, port);
+	}
+
+	return NULL;
+}
+
 static void port_assign(struct execlist_port *port,
 			struct drm_i915_gem_request *rq)
 {
@@ -726,10 +744,8 @@ static void port_assign(struct execlist_port *port,
 static void guc_dequeue(struct intel_engine_cs *engine)
 {
 	struct intel_engine_execlists * const execlists = &engine->execlists;
-	struct execlist_port *port = execlists->port;
+	struct execlist_port *port, *last_port;
 	struct drm_i915_gem_request *last = NULL;
-	const struct execlist_port * const last_port =
-		&execlists->port[execlists->port_mask];
 	bool submit = false;
 	struct rb_node *rb;
 
@@ -740,6 +756,9 @@ static void guc_dequeue(struct intel_engine_cs *engine)
 	if (!rb)
 		goto unlock;
 
+	port = execlists_port_head(execlists);
+	last_port = execlists_port_tail(execlists);
+
 	if (port_isset(port)) {
 		if (HAS_LOGICAL_RING_PREEMPTION(engine->i915)) {
 			struct guc_preempt_work *preempt_work =
@@ -755,8 +774,8 @@ static void guc_dequeue(struct intel_engine_cs *engine)
 			}
 		}
 
-		port++;
-		if (port_isset(port))
+		port = port_find_first_unset(execlists, port);
+		if (!port)
 			goto unlock;
 	}
 	GEM_BUG_ON(port_isset(port));
@@ -775,7 +794,9 @@ static void guc_dequeue(struct intel_engine_cs *engine)
 
 				if (submit)
 					port_assign(port, last);
-				port++;
+
+				port = execlists_port_next(execlists, port);
+				GEM_BUG_ON(port_isset(port));
 			}
 
 			INIT_LIST_HEAD(&rq->priotree.link);
@@ -804,29 +825,37 @@ static void guc_dequeue(struct intel_engine_cs *engine)
 	spin_unlock_irq(&engine->timeline->lock);
 }
 
-static void guc_submission_tasklet(unsigned long data)
+static void guc_complete_ready_ports(struct intel_engine_execlists *execlists)
 {
-	struct intel_engine_cs * const engine = (struct intel_engine_cs *)data;
-	struct intel_engine_execlists * const execlists = &engine->execlists;
-	struct execlist_port *port = execlists->port;
-	struct drm_i915_gem_request *rq;
+	struct execlist_port *port = execlists_port_head(execlists);
+
+	while (port_isset(port)) {
+		struct drm_i915_gem_request *rq = port_request(port);
+
+		if (!i915_gem_request_completed(rq))
+			break;
 
-	rq = port_request(&port[0]);
-	while (rq && i915_gem_request_completed(rq)) {
 		trace_i915_gem_request_out(rq);
 		i915_gem_request_put(rq);
 
-		execlists_port_complete(execlists, port);
+		port = execlists_head_complete(execlists, port);
+	};
 
-		rq = port_request(&port[0]);
-	}
-	if (!rq)
+	if (!port_isset(port))
 		execlists_clear_active(execlists, EXECLISTS_ACTIVE_USER);
+}
+
+static void guc_submission_tasklet(unsigned long data)
+{
+	struct intel_engine_cs * const engine = (struct intel_engine_cs *)data;
+	struct intel_engine_execlists * const execlists = &engine->execlists;
+
+	guc_complete_ready_ports(execlists);
 
 	if (execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT) &&
 	    intel_read_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX) ==
 	    GUC_PREEMPT_FINISHED) {
-		execlists_cancel_port_requests(&engine->execlists);
+		execlists_cancel_port_requests(execlists);
 		execlists_unwind_incomplete_requests(execlists);
 
 		wait_for_guc_preempt_report(engine);
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 2a8160f603ab..bc839729a78c 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -430,24 +430,27 @@ static inline void elsp_write(u64 desc, u32 __iomem *elsp)
 
 static void execlists_submit_ports(struct intel_engine_cs *engine)
 {
-	struct execlist_port *port = engine->execlists.port;
+	struct intel_engine_execlists * const execlists = &engine->execlists;
 	u32 __iomem *elsp =
 		engine->i915->regs + i915_mmio_reg_offset(RING_ELSP(engine));
 	unsigned int n;
 
-	for (n = execlists_num_ports(&engine->execlists); n--; ) {
+	for (n = execlists_num_ports(execlists); n--; ) {
+		struct execlist_port *port;
 		struct drm_i915_gem_request *rq;
 		unsigned int count;
 		u64 desc;
 
-		rq = port_unpack(&port[n], &count);
+		port = execlists_port(execlists, n);
+		rq = port_unpack(port, &count);
 		if (rq) {
 			GEM_BUG_ON(count > !n);
 			if (!count++)
 				execlists_context_schedule_in(rq);
-			port_set(&port[n], port_pack(rq, count));
+
+			port_set(port, port_pack(rq, count));
 			desc = execlists_update_context(rq);
-			GEM_DEBUG_EXEC(port[n].context_id = upper_32_bits(desc));
+			GEM_DEBUG_EXEC(port->context_id = upper_32_bits(desc));
 
 			GEM_TRACE("%s in[%d]:  ctx=%d.%d, seqno=%x\n",
 				  engine->name, n,
@@ -519,10 +522,8 @@ static void inject_preempt_context(struct intel_engine_cs *engine)
 static void execlists_dequeue(struct intel_engine_cs *engine)
 {
 	struct intel_engine_execlists * const execlists = &engine->execlists;
-	struct execlist_port *port = execlists->port;
-	const struct execlist_port * const last_port =
-		&execlists->port[execlists->port_mask];
-	struct drm_i915_gem_request *last = port_request(port);
+	struct execlist_port *port, *last_port;
+	struct drm_i915_gem_request *last;
 	struct rb_node *rb;
 	bool submit = false;
 
@@ -553,6 +554,9 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
 	if (!rb)
 		goto unlock;
 
+	port = execlists_port_head(execlists);
+	last = port_request(port);
+
 	if (last) {
 		/*
 		 * Don't resubmit or switch until all outstanding
@@ -560,8 +564,8 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
 		 * know the next preemption status we see corresponds
 		 * to this ELSP update.
 		 */
-		GEM_BUG_ON(!port_count(&port[0]));
-		if (port_count(&port[0]) > 1)
+		GEM_BUG_ON(!port_count(port));
+		if (port_count(port) > 1)
 			goto unlock;
 
 		/*
@@ -606,7 +610,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
 			 * the driver is unable to keep up the supply of new
 			 * work).
 			 */
-			if (port_count(&port[1]))
+			if (port_count(execlists_port_next(execlists, port)))
 				goto unlock;
 
 			/* WaIdleLiteRestore:bdw,skl
@@ -620,6 +624,8 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
 		}
 	}
 
+	last_port = execlists_port_tail(execlists);
+
 	do {
 		struct i915_priolist *p = rb_entry(rb, typeof(*p), node);
 		struct drm_i915_gem_request *rq, *rn;
@@ -666,8 +672,8 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
 
 				if (submit)
 					port_assign(port, last);
-				port++;
 
+				port = execlists_port_next(execlists, port);
 				GEM_BUG_ON(port_isset(port));
 			}
 
@@ -700,20 +706,21 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
 void
 execlists_cancel_port_requests(struct intel_engine_execlists * const execlists)
 {
-	struct execlist_port *port = execlists->port;
 	unsigned int num_ports = execlists_num_ports(execlists);
+	struct execlist_port *port;
 
-	while (num_ports-- && port_isset(port)) {
+	for (port = execlists_port_head(execlists);
+	     num_ports-- && port_isset(port);
+	     port = execlists_head_complete(execlists, port)) {
 		struct drm_i915_gem_request *rq = port_request(port);
 
 		GEM_BUG_ON(!execlists->active);
 		intel_engine_context_out(rq->engine);
 		execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_PREEMPTED);
 		i915_gem_request_put(rq);
-
-		memset(port, 0, sizeof(*port));
-		port++;
 	}
+
+	GEM_BUG_ON(port_isset(execlists_port_head(execlists)));
 }
 
 static void execlists_cancel_requests(struct intel_engine_cs *engine)
@@ -780,7 +787,6 @@ static void execlists_submission_tasklet(unsigned long data)
 {
 	struct intel_engine_cs * const engine = (struct intel_engine_cs *)data;
 	struct intel_engine_execlists * const execlists = &engine->execlists;
-	struct execlist_port * const port = execlists->port;
 	struct drm_i915_private *dev_priv = engine->i915;
 
 	/* We can skip acquiring intel_runtime_pm_get() here as it was taken
@@ -799,6 +805,8 @@ static void execlists_submission_tasklet(unsigned long data)
 	 * new request (outside of the context-switch interrupt).
 	 */
 	while (test_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted)) {
+		struct execlist_port *port;
+
 		/* The HWSP contains a (cacheable) mirror of the CSB */
 		const u32 *buf =
 			&engine->status_page.page_addr[I915_HWS_CSB_BUF0_INDEX];
@@ -839,6 +847,8 @@ static void execlists_submission_tasklet(unsigned long data)
 			  head, GEN8_CSB_READ_PTR(readl(dev_priv->regs + i915_mmio_reg_offset(RING_CONTEXT_STATUS_PTR(engine)))),
 			  tail, GEN8_CSB_WRITE_PTR(readl(dev_priv->regs + i915_mmio_reg_offset(RING_CONTEXT_STATUS_PTR(engine)))));
 
+		port = execlists_port_head(execlists);
+
 		while (head != tail) {
 			struct drm_i915_gem_request *rq;
 			unsigned int status;
@@ -914,14 +924,14 @@ static void execlists_submission_tasklet(unsigned long data)
 			GEM_BUG_ON(count == 0);
 			if (--count == 0) {
 				GEM_BUG_ON(status & GEN8_CTX_STATUS_PREEMPTED);
-				GEM_BUG_ON(port_isset(&port[1]) &&
+				GEM_BUG_ON(port_isset(execlists_port(execlists, 1)) &&
 					   !(status & GEN8_CTX_STATUS_ELEMENT_SWITCH));
 				GEM_BUG_ON(!i915_gem_request_completed(rq));
 				execlists_context_schedule_out(rq);
 				trace_i915_gem_request_out(rq);
 				i915_gem_request_put(rq);
 
-				execlists_port_complete(execlists, port);
+				port = execlists_head_complete(execlists, port);
 			} else {
 				port_set(port, port_pack(rq, count));
 			}
@@ -961,6 +971,7 @@ static void insert_request(struct intel_engine_cs *engine,
 static void execlists_submit_request(struct drm_i915_gem_request *request)
 {
 	struct intel_engine_cs *engine = request->engine;
+	struct intel_engine_execlists * const execlists = &engine->execlists;
 	unsigned long flags;
 
 	/* Will be called from irq-context when using foreign fences. */
@@ -968,7 +979,7 @@ static void execlists_submit_request(struct drm_i915_gem_request *request)
 
 	insert_request(engine, &request->priotree, request->priotree.priority);
 
-	GEM_BUG_ON(!engine->execlists.first);
+	GEM_BUG_ON(!execlists->first);
 	GEM_BUG_ON(list_empty(&request->priotree.link));
 
 	spin_unlock_irqrestore(&engine->timeline->lock, flags);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index c68ab3ead83c..17f1fb4ded89 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -251,6 +251,11 @@ struct intel_engine_execlists {
 	unsigned int port_mask;
 
 	/**
+	 * @port_head: first used execlist port
+	 */
+	unsigned int port_head;
+
+	/**
 	 * @queue: queue of requests, in priority lists
 	 */
 	struct rb_root queue;
@@ -643,8 +648,41 @@ execlists_num_ports(const struct intel_engine_execlists * const execlists)
 	return execlists->port_mask + 1;
 }
 
-static inline void
-execlists_port_complete(struct intel_engine_execlists * const execlists,
+#define __port_add(start, n, mask) (((start) + (n)) & (mask))
+#define port_head_add(e, n) __port_add((e)->port_head, n, (e)->port_mask)
+
+/* Index starting from port_head */
+static inline struct execlist_port *
+execlists_port(struct intel_engine_execlists * const execlists,
+	       const unsigned int n)
+{
+	return &execlists->port[port_head_add(execlists, n)];
+}
+
+static inline struct execlist_port *
+execlists_port_head(struct intel_engine_execlists * const execlists)
+{
+	return execlists_port(execlists, 0);
+}
+
+static inline struct execlist_port *
+execlists_port_tail(struct intel_engine_execlists * const execlists)
+{
+	return execlists_port(execlists, -1);
+}
+
+static inline struct execlist_port *
+execlists_port_next(struct intel_engine_execlists * const execlists,
+		    struct execlist_port *port)
+{
+	if (port++ == execlists->port + execlists->port_mask)
+		port = execlists->port;
+
+	return port;
+}
+
+static inline struct execlist_port *
+execlists_head_complete(struct intel_engine_execlists * const execlists,
 			struct execlist_port * const port)
 {
 	const unsigned int m = execlists->port_mask;
@@ -654,6 +692,8 @@ execlists_port_complete(struct intel_engine_execlists * const execlists,
 
 	memmove(port, port + 1, m * sizeof(struct execlist_port));
 	memset(port + m, 0, sizeof(struct execlist_port));
+
+	return execlists_port_head(execlists);
 }
 
 static inline unsigned int
-- 
2.11.0

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 7+ messages in thread
* [CI 1/3] drm/i915/guc: Tidy ELSP port assignment
@ 2017-11-24 13:00 Chris Wilson
  2017-11-24 13:00 ` [CI 3/3] HAX Enable GuC Submission for CI Chris Wilson
  0 siblings, 1 reply; 7+ messages in thread
From: Chris Wilson @ 2017-11-24 13:00 UTC (permalink / raw)
  To: intel-gfx

Since we know that the port is empty, we do not need to extract the
count from the old request it and copy it over to the new request, or
attempt to unref the NULL old request pointer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
---
 drivers/gpu/drm/i915/intel_guc_submission.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
index cbf5a96f5806..b619e591f8f1 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -718,12 +718,9 @@ static void guc_submit(struct intel_engine_cs *engine)
 static void port_assign(struct execlist_port *port,
 			struct drm_i915_gem_request *rq)
 {
-	GEM_BUG_ON(rq == port_request(port));
+	GEM_BUG_ON(port_isset(port));
 
-	if (port_isset(port))
-		i915_gem_request_put(port_request(port));
-
-	port_set(port, port_pack(i915_gem_request_get(rq), port_count(port)));
+	port_set(port, i915_gem_request_get(rq));
 }
 
 static void guc_dequeue(struct intel_engine_cs *engine)
-- 
2.15.0

_______________________________________________
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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 7+ messages in thread
* [CI v2 1/3] drm/i915: Remove misleading comment in request_alloc
@ 2017-05-23 10:23 Michał Winiarski
  2017-05-23 10:24 ` [CI 3/3] HAX: Enable GuC submission for CI Michał Winiarski
  0 siblings, 1 reply; 7+ messages in thread
From: Michał Winiarski @ 2017-05-23 10:23 UTC (permalink / raw)
  To: intel-gfx

Passing NULL ctx to request_alloc would lead to null-ptr-deref.

v2: Let's not replace the comment with a BUG_ON

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem_request.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c
index 1ccf252..0d1e0d8 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -538,9 +538,6 @@ submit_notify(struct i915_sw_fence *fence, enum i915_sw_fence_notify state)
  *
  * @engine: engine that we wish to issue the request on.
  * @ctx: context that the request will be associated with.
- *       This can be NULL if the request is not directly related to
- *       any specific user context, in which case this function will
- *       choose an appropriate context to use.
  *
  * Returns a pointer to the allocated request if successful,
  * or an error code if not.
-- 
2.9.4

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^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2017-12-01  8:48 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-11-30 12:45 [CI 1/3] drm/i915: Introduce execlist_port_* accessors Mika Kuoppala
2017-11-30 12:45 ` [CI 2/3] drm/i915: Move execlists port head instead of memmoving array Mika Kuoppala
2017-11-30 12:45 ` [CI 3/3] HAX Enable GuC Submission for CI Mika Kuoppala
2017-11-30 17:13 ` ✗ Fi.CI.BAT: failure for series starting with [CI,1/3] drm/i915: Introduce execlist_port_* accessors Patchwork
2017-12-01  8:47   ` Mika Kuoppala
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2017-11-24 13:00 [CI 1/3] drm/i915/guc: Tidy ELSP port assignment Chris Wilson
2017-11-24 13:00 ` [CI 3/3] HAX Enable GuC Submission for CI Chris Wilson
2017-05-23 10:23 [CI v2 1/3] drm/i915: Remove misleading comment in request_alloc Michał Winiarski
2017-05-23 10:24 ` [CI 3/3] HAX: Enable GuC submission for CI Michał Winiarski

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