[PATCH 34/42] drm/i915: Move request initialisation callback to intel_context_ops

Chris Wilson chris at chris-wilson.co.uk
Tue Feb 9 21:26:20 UTC 2021


As part of the seperation between scheduling and the management of the
physical CS device, move the request setup from out of the control of
the engine backend to the context.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_context_types.h |  2 +
 drivers/gpu/drm/i915/gt/intel_engine_types.h  |  2 -
 .../drm/i915/gt/intel_execlists_submission.c  | 62 ++++++------
 .../gpu/drm/i915/gt/intel_ring_scheduler.c    | 48 ++++-----
 .../gpu/drm/i915/gt/intel_ring_submission.c   | 99 ++++++++++---------
 drivers/gpu/drm/i915/gt/mock_engine.c         | 22 ++---
 .../gpu/drm/i915/gt/uc/intel_guc_submission.c | 64 ++++++------
 drivers/gpu/drm/i915/i915_request.c           |  2 +-
 8 files changed, 156 insertions(+), 145 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_context_types.h b/drivers/gpu/drm/i915/gt/intel_context_types.h
index d1a35c3055a7..3adccb1c4609 100644
--- a/drivers/gpu/drm/i915/gt/intel_context_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_context_types.h
@@ -38,6 +38,8 @@ struct intel_context_ops {
 
 	int (*alloc)(struct intel_context *ce);
 
+	int (*init_request)(struct intel_context *ce, struct i915_request *rq);
+
 	int (*pre_pin)(struct intel_context *ce, struct i915_gem_ww_ctx *ww, void **vaddr);
 	int (*pin)(struct intel_context *ce, void *vaddr);
 	void (*unpin)(struct intel_context *ce);
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index 0122a576baf8..6a1491dbebd2 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -387,8 +387,6 @@ struct intel_engine_cs {
 
 	const struct intel_context_ops *cops;
 
-	int		(*request_alloc)(struct i915_request *rq);
-
 	int		(*emit_flush)(struct i915_request *request, u32 mode);
 #define EMIT_INVALIDATE	BIT(0)
 #define EMIT_FLUSH	BIT(1)
diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
index 620ce7cb4f87..08fa016cc02f 100644
--- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
@@ -2264,31 +2264,14 @@ static int execlists_context_alloc(struct intel_context *ce)
 	return lrc_alloc(ce, ce->engine);
 }
 
-static const struct intel_context_ops execlists_context_ops = {
-	.flags = COPS_HAS_INFLIGHT | COPS_RUNTIME_CYCLES,
-
-	.alloc = execlists_context_alloc,
-
-	.pre_pin = execlists_context_pre_pin,
-	.pin = execlists_context_pin,
-	.unpin = lrc_unpin,
-	.post_unpin = lrc_post_unpin,
-
-	.enter = intel_context_enter_engine,
-	.exit = intel_context_exit_engine,
-
-	.reset = lrc_reset,
-	.destroy = lrc_destroy,
-};
-
-static int emit_pdps(struct i915_request *rq)
+static int emit_pdps(struct intel_context *ce, struct i915_request *rq)
 {
-	const struct intel_engine_cs * const engine = rq->engine;
-	struct i915_ppgtt * const ppgtt = i915_vm_to_ppgtt(rq->context->vm);
+	const struct intel_engine_cs * const engine = ce->engine;
+	struct i915_ppgtt * const ppgtt = i915_vm_to_ppgtt(ce->vm);
 	int err, i;
 	u32 *cs;
 
-	GEM_BUG_ON(intel_vgpu_active(rq->engine->i915));
+	GEM_BUG_ON(intel_vgpu_active(engine->i915));
 
 	/*
 	 * Beware ye of the dragons, this sequence is magic!
@@ -2338,18 +2321,20 @@ static int emit_pdps(struct i915_request *rq)
 	return 0;
 }
 
-static int execlists_request_alloc(struct i915_request *request)
+static int
+execlists_context_request(struct intel_context *ce, struct i915_request *rq)
 {
+	struct intel_engine_cs *engine = ce->engine;
 	int ret;
 
-	GEM_BUG_ON(!intel_context_is_pinned(request->context));
+	GEM_BUG_ON(!intel_context_is_pinned(ce));
 
 	/*
 	 * Flush enough space to reduce the likelihood of waiting after
 	 * we start building the request - in which case we will just
 	 * have to repeat work.
 	 */
-	request->reserved_space += EXECLISTS_REQUEST_SIZE;
+	rq->reserved_space += EXECLISTS_REQUEST_SIZE;
 
 	/*
 	 * Note that after this point, we have committed to using
@@ -2359,21 +2344,39 @@ static int execlists_request_alloc(struct i915_request *request)
 	 * to cancel/unwind this request now.
 	 */
 
-	if (!i915_vm_is_4lvl(request->context->vm)) {
-		ret = emit_pdps(request);
+	if (!i915_vm_is_4lvl(ce->vm)) {
+		ret = emit_pdps(ce, rq);
 		if (ret)
 			return ret;
 	}
 
 	/* Unconditionally invalidate GPU caches and TLBs. */
-	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
+	ret = engine->emit_flush(rq, EMIT_INVALIDATE);
 	if (ret)
 		return ret;
 
-	request->reserved_space -= EXECLISTS_REQUEST_SIZE;
+	rq->reserved_space -= EXECLISTS_REQUEST_SIZE;
 	return 0;
 }
 
+static const struct intel_context_ops execlists_context_ops = {
+	.flags = COPS_HAS_INFLIGHT | COPS_RUNTIME_CYCLES,
+
+	.alloc = execlists_context_alloc,
+	.init_request = execlists_context_request,
+
+	.pre_pin = execlists_context_pre_pin,
+	.pin = execlists_context_pin,
+	.unpin = lrc_unpin,
+	.post_unpin = lrc_post_unpin,
+
+	.enter = intel_context_enter_engine,
+	.exit = intel_context_exit_engine,
+
+	.reset = lrc_reset,
+	.destroy = lrc_destroy,
+};
+
 static void reset_csb_pointers(struct intel_engine_cs *engine)
 {
 	struct intel_engine_execlists * const execlists = &engine->execlists;
@@ -2872,7 +2875,6 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine)
 	engine->resume = execlists_resume;
 
 	engine->cops = &execlists_context_ops;
-	engine->request_alloc = execlists_request_alloc;
 
 	engine->reset.prepare = execlists_reset_prepare;
 	engine->reset.rewind = execlists_reset_rewind;
@@ -3181,6 +3183,7 @@ static const struct intel_context_ops virtual_context_ops = {
 	.flags = COPS_HAS_INFLIGHT | COPS_RUNTIME_CYCLES,
 
 	.alloc = virtual_context_alloc,
+	.init_request = execlists_context_request,
 
 	.pre_pin = virtual_context_pre_pin,
 	.pin = virtual_context_pin,
@@ -3372,7 +3375,6 @@ intel_execlists_create_virtual(struct intel_engine_cs **siblings,
 	intel_engine_init_execlists(&ve->base);
 
 	ve->base.cops = &virtual_context_ops;
-	ve->base.request_alloc = execlists_request_alloc;
 
 	ve->base.bond_execute = virtual_bond_execute;
 
diff --git a/drivers/gpu/drm/i915/gt/intel_ring_scheduler.c b/drivers/gpu/drm/i915/gt/intel_ring_scheduler.c
index 6d1ad81b1a5a..d22aa63797e3 100644
--- a/drivers/gpu/drm/i915/gt/intel_ring_scheduler.c
+++ b/drivers/gpu/drm/i915/gt/intel_ring_scheduler.c
@@ -905,10 +905,35 @@ static void ring_context_reset(struct intel_context *ce)
 	clear_bit(CONTEXT_VALID_BIT, &ce->flags);
 }
 
+static int
+ring_context_request(struct intel_context *ce, struct i915_request *rq)
+{
+	struct intel_engine_cs *engine = ce->engine;
+	int ret;
+
+	GEM_BUG_ON(!intel_context_is_pinned(ce));
+
+	/*
+	 * Flush enough space to reduce the likelihood of waiting after
+	 * we start building the request - in which case we will just
+	 * have to repeat work.
+	 */
+	rq->reserved_space += LEGACY_REQUEST_SIZE;
+
+	/* Unconditionally invalidate GPU caches and TLBs. */
+	ret = engine->emit_flush(rq, EMIT_INVALIDATE);
+	if (ret)
+		return ret;
+
+	rq->reserved_space -= LEGACY_REQUEST_SIZE;
+	return 0;
+}
+
 static const struct intel_context_ops ring_context_ops = {
 	.flags = COPS_HAS_INFLIGHT,
 
 	.alloc = ring_context_alloc,
+	.init_request = ring_context_request,
 
 	.pre_pin = ring_context_pre_pin,
 	.pin = ring_context_pin,
@@ -922,28 +947,6 @@ static const struct intel_context_ops ring_context_ops = {
 	.destroy = ring_context_destroy,
 };
 
-static int ring_request_alloc(struct i915_request *rq)
-{
-	int ret;
-
-	GEM_BUG_ON(!intel_context_is_pinned(rq->context));
-
-	/*
-	 * Flush enough space to reduce the likelihood of waiting after
-	 * we start building the request - in which case we will just
-	 * have to repeat work.
-	 */
-	rq->reserved_space += LEGACY_REQUEST_SIZE;
-
-	/* Unconditionally invalidate GPU caches and TLBs. */
-	ret = rq->engine->emit_flush(rq, EMIT_INVALIDATE);
-	if (ret)
-		return ret;
-
-	rq->reserved_space -= LEGACY_REQUEST_SIZE;
-	return 0;
-}
-
 static void set_default_submission(struct intel_engine_cs *engine)
 {
 	engine->sched.submit_request = i915_request_enqueue;
@@ -1002,7 +1005,6 @@ static void setup_common(struct intel_engine_cs *engine)
 	engine->reset.finish = intel_ring_submission_reset_finish;
 
 	engine->cops = &ring_context_ops;
-	engine->request_alloc = ring_request_alloc;
 
 	engine->emit_init_breadcrumb = gen4_emit_init_breadcrumb_xcs;
 
diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
index be1fe7915af9..012b1f5194d2 100644
--- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
@@ -557,26 +557,11 @@ static void ring_context_reset(struct intel_context *ce)
 	clear_bit(CONTEXT_VALID_BIT, &ce->flags);
 }
 
-static const struct intel_context_ops ring_context_ops = {
-	.alloc = ring_context_alloc,
-
-	.pre_pin = ring_context_pre_pin,
-	.pin = ring_context_pin,
-	.unpin = ring_context_unpin,
-	.post_unpin = ring_context_post_unpin,
-
-	.enter = intel_context_enter_engine,
-	.exit = intel_context_exit_engine,
-
-	.reset = ring_context_reset,
-	.destroy = ring_context_destroy,
-};
-
-static int load_pd_dir(struct i915_request *rq,
+static int load_pd_dir(const struct intel_engine_cs *engine,
+		       struct i915_request *rq,
 		       struct i915_address_space *vm,
 		       u32 valid)
 {
-	const struct intel_engine_cs * const engine = rq->engine;
 	u32 *cs;
 
 	cs = intel_ring_begin(rq, 12);
@@ -603,14 +588,14 @@ static int load_pd_dir(struct i915_request *rq,
 
 	intel_ring_advance(rq, cs);
 
-	return rq->engine->emit_flush(rq, EMIT_FLUSH);
+	return engine->emit_flush(rq, EMIT_FLUSH);
 }
 
 static int mi_set_context(struct i915_request *rq,
 			  struct intel_context *ce,
 			  u32 flags)
 {
-	struct intel_engine_cs *engine = rq->engine;
+	struct intel_engine_cs *engine = ce->engine;
 	struct drm_i915_private *i915 = engine->i915;
 	enum intel_engine_id id;
 	const int num_engines =
@@ -723,10 +708,12 @@ static int mi_set_context(struct i915_request *rq,
 	return 0;
 }
 
-static int remap_l3_slice(struct i915_request *rq, int slice)
+static int remap_l3_slice(struct intel_context *ce,
+			  struct i915_request *rq,
+			  int slice)
 {
 #define L3LOG_DW (GEN7_L3LOG_SIZE / sizeof(u32))
-	u32 *cs, *remap_info = rq->engine->i915->l3_parity.remap_info[slice];
+	u32 *cs, *remap_info = ce->engine->i915->l3_parity.remap_info[slice];
 	int i;
 
 	if (!remap_info)
@@ -753,7 +740,7 @@ static int remap_l3_slice(struct i915_request *rq, int slice)
 #undef L3LOG_DW
 }
 
-static int remap_l3(struct i915_request *rq)
+static int remap_l3(struct intel_context *ce, struct i915_request *rq)
 {
 	struct i915_gem_context *ctx = i915_request_gem_context(rq);
 	int i, err;
@@ -765,7 +752,7 @@ static int remap_l3(struct i915_request *rq)
 		if (!(ctx->remap_slice & BIT(i)))
 			continue;
 
-		err = remap_l3_slice(rq, i);
+		err = remap_l3_slice(ce, rq, i);
 		if (err)
 			return err;
 	}
@@ -774,14 +761,15 @@ static int remap_l3(struct i915_request *rq)
 	return 0;
 }
 
-static int switch_mm(struct i915_request *rq, struct i915_address_space *vm)
+static int switch_mm(struct intel_context *ce, struct i915_request *rq)
 {
+	struct i915_address_space *vm = vm_alias(ce->vm);
 	int ret;
 
 	if (!vm)
 		return 0;
 
-	ret = rq->engine->emit_flush(rq, EMIT_FLUSH);
+	ret = ce->engine->emit_flush(rq, EMIT_FLUSH);
 	if (ret)
 		return ret;
 
@@ -793,25 +781,25 @@ static int switch_mm(struct i915_request *rq, struct i915_address_space *vm)
 	 * post-sync op, this extra pass appears vital before a
 	 * mm switch!
 	 */
-	ret = load_pd_dir(rq, vm, PP_DIR_DCLV_2G);
+	ret = load_pd_dir(ce->engine, rq, vm, PP_DIR_DCLV_2G);
 	if (ret)
 		return ret;
 
-	return rq->engine->emit_flush(rq, EMIT_INVALIDATE);
+	return ce->engine->emit_flush(rq, EMIT_INVALIDATE);
 }
 
-static int clear_residuals(struct i915_request *rq)
+static int
+clear_residuals(struct intel_engine_cs *engine, struct i915_request *rq)
 {
-	struct intel_engine_cs *engine = rq->engine;
+	struct intel_context *ce = engine->kernel_context;
 	int ret;
 
-	ret = switch_mm(rq, vm_alias(engine->kernel_context->vm));
+	ret = switch_mm(ce, rq);
 	if (ret)
 		return ret;
 
-	if (engine->kernel_context->state) {
-		ret = mi_set_context(rq,
-				     engine->kernel_context,
+	if (ce->state) {
+		ret = mi_set_context(rq, ce,
 				     MI_MM_SPACE_GTT | MI_RESTORE_INHIBIT);
 		if (ret)
 			return ret;
@@ -831,10 +819,10 @@ static int clear_residuals(struct i915_request *rq)
 	return engine->emit_flush(rq, EMIT_INVALIDATE);
 }
 
-static int switch_context(struct i915_request *rq)
+static int switch_context(struct intel_context *ce,
+			  struct i915_request *rq)
 {
-	struct intel_engine_cs *engine = rq->engine;
-	struct intel_context *ce = rq->context;
+	struct intel_engine_cs *engine = ce->engine;
 	void **residuals = NULL;
 	int ret;
 
@@ -843,7 +831,7 @@ static int switch_context(struct i915_request *rq)
 	if (engine->wa_ctx.vma && ce != engine->kernel_context) {
 		if (engine->wa_ctx.vma->private != ce &&
 		    i915_mitigate_clear_residuals()) {
-			ret = clear_residuals(rq);
+			ret = clear_residuals(engine, rq);
 			if (ret)
 				return ret;
 
@@ -851,7 +839,7 @@ static int switch_context(struct i915_request *rq)
 		}
 	}
 
-	ret = switch_mm(rq, vm_alias(ce->vm));
+	ret = switch_mm(ce, rq);
 	if (ret)
 		return ret;
 
@@ -875,7 +863,7 @@ static int switch_context(struct i915_request *rq)
 			return ret;
 	}
 
-	ret = remap_l3(rq);
+	ret = remap_l3(ce, rq);
 	if (ret)
 		return ret;
 
@@ -896,33 +884,51 @@ static int switch_context(struct i915_request *rq)
 	return 0;
 }
 
-static int ring_request_alloc(struct i915_request *request)
+static int
+ring_context_request(struct intel_context *ce, struct i915_request *rq)
 {
+	struct intel_engine_cs *engine = ce->engine;
 	int ret;
 
-	GEM_BUG_ON(!intel_context_is_pinned(request->context));
-	GEM_BUG_ON(intel_timeline_has_initial_breadcrumb(i915_request_timeline(request)));
+	GEM_BUG_ON(!intel_context_is_pinned(ce));
+	GEM_BUG_ON(intel_timeline_has_initial_breadcrumb(i915_request_timeline(rq)));
 
 	/*
 	 * Flush enough space to reduce the likelihood of waiting after
 	 * we start building the request - in which case we will just
 	 * have to repeat work.
 	 */
-	request->reserved_space += LEGACY_REQUEST_SIZE;
+	rq->reserved_space += LEGACY_REQUEST_SIZE;
 
 	/* Unconditionally invalidate GPU caches and TLBs. */
-	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
+	ret = engine->emit_flush(rq, EMIT_INVALIDATE);
 	if (ret)
 		return ret;
 
-	ret = switch_context(request);
+	ret = switch_context(ce, rq);
 	if (ret)
 		return ret;
 
-	request->reserved_space -= LEGACY_REQUEST_SIZE;
+	rq->reserved_space -= LEGACY_REQUEST_SIZE;
 	return 0;
 }
 
+static const struct intel_context_ops ring_context_ops = {
+	.alloc = ring_context_alloc,
+	.init_request = ring_context_request,
+
+	.pre_pin = ring_context_pre_pin,
+	.pin = ring_context_pin,
+	.unpin = ring_context_unpin,
+	.post_unpin = ring_context_post_unpin,
+
+	.enter = intel_context_enter_engine,
+	.exit = intel_context_exit_engine,
+
+	.reset = ring_context_reset,
+	.destroy = ring_context_destroy,
+};
+
 static void set_default_submission(struct intel_engine_cs *engine)
 {
 	engine->sched.submit_request = i915_request_enqueue;
@@ -993,7 +999,6 @@ static void setup_common(struct intel_engine_cs *engine)
 	engine->reset.finish = intel_ring_submission_reset_finish;
 
 	engine->cops = &ring_context_ops;
-	engine->request_alloc = ring_request_alloc;
 
 	/*
 	 * Using a global execution timeline; the previous final breadcrumb is
diff --git a/drivers/gpu/drm/i915/gt/mock_engine.c b/drivers/gpu/drm/i915/gt/mock_engine.c
index 5662f7c2f719..6e57b5f93138 100644
--- a/drivers/gpu/drm/i915/gt/mock_engine.c
+++ b/drivers/gpu/drm/i915/gt/mock_engine.c
@@ -163,8 +163,18 @@ static void mock_context_reset(struct intel_context *ce)
 {
 }
 
+static int
+mock_context_request(struct intel_context *ce, struct i915_request *rq)
+{
+	INIT_LIST_HEAD(&rq->mock.link);
+	rq->mock.delay = 0;
+
+	return 0;
+}
+
 static const struct intel_context_ops mock_context_ops = {
 	.alloc = mock_context_alloc,
+	.init_request = mock_context_request,
 
 	.pre_pin = mock_context_pre_pin,
 	.pin = mock_context_pin,
@@ -178,16 +188,7 @@ static const struct intel_context_ops mock_context_ops = {
 	.destroy = mock_context_destroy,
 };
 
-static int mock_request_alloc(struct i915_request *request)
-{
-	INIT_LIST_HEAD(&request->mock.link);
-	request->mock.delay = 0;
-
-	return 0;
-}
-
-static int mock_emit_flush(struct i915_request *request,
-			   unsigned int flags)
+static int mock_emit_flush(struct i915_request *request, unsigned int flags)
 {
 	return 0;
 }
@@ -298,7 +299,6 @@ struct intel_engine_cs *mock_engine(struct drm_i915_private *i915,
 	engine->base.status_page.addr = (void *)(engine + 1);
 
 	engine->base.cops = &mock_context_ops;
-	engine->base.request_alloc = mock_request_alloc;
 	engine->base.emit_flush = mock_emit_flush;
 	engine->base.emit_fini_breadcrumb = mock_emit_breadcrumb;
 
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 79205e9a84ba..5f7ad348b159 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -426,8 +426,41 @@ static int guc_context_pin(struct intel_context *ce, void *vaddr)
 	return lrc_pin(ce, ce->engine, vaddr);
 }
 
+static int
+guc_context_request(struct intel_context *ce, struct i915_request *rq)
+{
+	struct intel_engine_cs *engine = ce->engine;
+	int ret;
+
+	GEM_BUG_ON(!intel_context_is_pinned(ce));
+
+	/*
+	 * Flush enough space to reduce the likelihood of waiting after
+	 * we start building the request - in which case we will just
+	 * have to repeat work.
+	 */
+	rq->reserved_space += GUC_REQUEST_SIZE;
+
+	/*
+	 * Note that after this point, we have committed to using
+	 * this request as it is being used to both track the
+	 * state of engine initialisation and liveness of the
+	 * golden renderstate above. Think twice before you try
+	 * to cancel/unwind this request now.
+	 */
+
+	/* Unconditionally invalidate GPU caches and TLBs. */
+	ret = engine->emit_flush(rq, EMIT_INVALIDATE);
+	if (ret)
+		return ret;
+
+	rq->reserved_space -= GUC_REQUEST_SIZE;
+	return 0;
+}
+
 static const struct intel_context_ops guc_context_ops = {
 	.alloc = guc_context_alloc,
+	.init_request = guc_context_request,
 
 	.pre_pin = guc_context_pre_pin,
 	.pin = guc_context_pin,
@@ -441,36 +474,6 @@ static const struct intel_context_ops guc_context_ops = {
 	.destroy = lrc_destroy,
 };
 
-static int guc_request_alloc(struct i915_request *request)
-{
-	int ret;
-
-	GEM_BUG_ON(!intel_context_is_pinned(request->context));
-
-	/*
-	 * Flush enough space to reduce the likelihood of waiting after
-	 * we start building the request - in which case we will just
-	 * have to repeat work.
-	 */
-	request->reserved_space += GUC_REQUEST_SIZE;
-
-	/*
-	 * Note that after this point, we have committed to using
-	 * this request as it is being used to both track the
-	 * state of engine initialisation and liveness of the
-	 * golden renderstate above. Think twice before you try
-	 * to cancel/unwind this request now.
-	 */
-
-	/* Unconditionally invalidate GPU caches and TLBs. */
-	ret = request->engine->emit_flush(request, EMIT_INVALIDATE);
-	if (ret)
-		return ret;
-
-	request->reserved_space -= GUC_REQUEST_SIZE;
-	return 0;
-}
-
 static void sanitize_hwsp(struct intel_engine_cs *engine)
 {
 	struct intel_timeline *tl;
@@ -557,7 +560,6 @@ static void guc_default_vfuncs(struct intel_engine_cs *engine)
 	engine->resume = guc_resume;
 
 	engine->cops = &guc_context_ops;
-	engine->request_alloc = guc_request_alloc;
 
 	engine->reset.prepare = guc_reset_prepare;
 	engine->reset.rewind = guc_reset_rewind;
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 352083889b97..72019ba4907d 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -840,7 +840,7 @@ __i915_request_create(struct intel_context *ce, gfp_t gfp)
 	 */
 	rq->head = rq->ring->emit;
 
-	ret = rq->engine->request_alloc(rq);
+	ret = ce->ops->init_request(ce, rq);
 	if (ret)
 		goto err_unwind;
 
-- 
2.20.1



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