[PATCH v6 12/34] drm/i915: Redirect execbuffer_final() via scheduler

[John.C.Harrison@Intel.com]

From: John Harrison <John.C.Harrison@Intel.com>

Updated the execbuffer() code to pass the packaged up batch buffer
information to the scheduler rather than calling execbuffer_final()
directly. The scheduler queue() code is currently a stub which simply
chains on to _final() immediately.

v6: Updated to newer nightly (lots of ring -> engine renaming).

Renamed 'i915_gem_execbuff_release_batch_obj' to
'i915_gem_execbuf_release_batch_obj'. [review feedback from Joonas
Lahtinen]

For: VIZ-1587
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
 drivers/gpu/drm/i915/i915_gem_execbuffer.c | 18 +++++++-----------
 drivers/gpu/drm/i915/intel_lrc.c           | 12 ++++--------
 2 files changed, 11 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 2b902e3..f7f3eb0 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -33,6 +33,7 @@
 #include "intel_drv.h"
 #include <linux/dma_remapping.h>
 #include <linux/uaccess.h>
+#include "i915_scheduler.h"
 
 #define  __EXEC_OBJECT_HAS_PIN (1<<31)
 #define  __EXEC_OBJECT_HAS_FENCE (1<<30)
@@ -1227,6 +1228,7 @@ i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
 			       struct drm_i915_gem_execbuffer2 *args,
 			       struct list_head *vmas)
 {
+	struct i915_scheduler_queue_entry *qe;
 	struct drm_device *dev = params->dev;
 	struct intel_engine_cs *engine = params->engine;
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1271,17 +1273,11 @@ i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
 
 	i915_gem_execbuffer_move_to_active(vmas, params->request);
 
-	ret = dev_priv->gt.execbuf_final(params);
+	qe = container_of(params, typeof(*qe), params);
+	ret = i915_scheduler_queue_execbuffer(qe);
 	if (ret)
 		return ret;
 
-	/*
-	 * Free everything that was stored in the QE structure (until the
-	 * scheduler arrives and does it instead):
-	 */
-	if (params->dispatch_flags & I915_DISPATCH_SECURE)
-		i915_gem_execbuf_release_batch_obj(params->batch_obj);
-
 	return 0;
 }
 
@@ -1471,8 +1467,8 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 	struct intel_engine_cs *engine;
 	struct intel_context *ctx;
 	struct i915_address_space *vm;
-	struct i915_execbuffer_params params_master; /* XXX: will be removed later */
-	struct i915_execbuffer_params *params = &params_master;
+	struct i915_scheduler_queue_entry qe;
+	struct i915_execbuffer_params *params = &qe.params;
 	const u32 ctx_id = i915_execbuffer2_get_context_id(*args);
 	u32 dispatch_flags;
 	int ret;
@@ -1538,7 +1534,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 	else
 		vm = &ggtt->base;
 
-	memset(&params_master, 0x00, sizeof(params_master));
+	memset(&qe, 0x00, sizeof(qe));
 
 	eb = eb_create(args);
 	if (eb == NULL) {
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 69df948..6bf0e3f 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -137,6 +137,7 @@
 #include <drm/i915_drm.h>
 #include "i915_drv.h"
 #include "intel_mocs.h"
+#include "i915_scheduler.h"
 
 #define GEN9_LR_CONTEXT_RENDER_SIZE (22 * PAGE_SIZE)
 #define GEN8_LR_CONTEXT_RENDER_SIZE (20 * PAGE_SIZE)
@@ -942,6 +943,7 @@ int intel_execlists_submission(struct i915_execbuffer_params *params,
 			       struct drm_i915_gem_execbuffer2 *args,
 			       struct list_head *vmas)
 {
+	struct i915_scheduler_queue_entry *qe;
 	struct drm_device       *dev = params->dev;
 	struct intel_engine_cs *engine = params->engine;
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -984,17 +986,11 @@ int intel_execlists_submission(struct i915_execbuffer_params *params,
 
 	i915_gem_execbuffer_move_to_active(vmas, params->request);
 
-	ret = dev_priv->gt.execbuf_final(params);
+	qe = container_of(params, typeof(*qe), params);
+	ret = i915_scheduler_queue_execbuffer(qe);
 	if (ret)
 		return ret;
 
-	/*
-	 * Free everything that was stored in the QE structure (until the
-	 * scheduler arrives and does it instead):
-	 */
-	if (params->dispatch_flags & I915_DISPATCH_SECURE)
-		i915_gem_execbuf_release_batch_obj(params->batch_obj);
-
 	return 0;
 }
 
-- 
1.9.1

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