[PATCH v4 14/38] drm/i915: Redirect execbuffer_final() via scheduler

John.C.Harrison
2016-01-11T18:43:24Z

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.

For: VIZ-1587
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
---
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 0ad32f6..0e09680 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)
@@ -1178,6 +1179,7 @@ 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 *ring = params->ring;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1222,17 +1224,11 @@ 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_execbuff_release_batch_obj(params->batch_obj);
-
return 0;
}

@@ -1377,8 +1373,8 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
struct intel_engine_cs *ring;
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;
@@ -1484,7 +1480,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
else
vm = &dev_priv->gtt.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 a344a3a..1ff552a 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -136,6 +136,7 @@
#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)
@@ -866,6 +867,7 @@ 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 *ring = params->ring;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -908,17 +910,11 @@ 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_execbuff_release_batch_obj(params->batch_obj);
-
return 0;