[Intel-gfx] [PATCH 4/4] drm/i915: Split i915_gem_timeline into individual timelines
Chris Wilson
chris at chris-wilson.co.uk
Fri Apr 20 13:20:36 UTC 2018
We need to move to a more flexible timeline that doesn't assume one
fence context per engine, and so allow for a single timeline to be used
across a combination of engines. This means that preallocating a fence
context per engine is now a hindrance, and so we want to introduce the
singular timeline. From the code perspective, this has the notable
advantage of clearing up a lot of mirky semantics and some clumsy
pointer chasing.
By splitting the timeline up into a single entity rather than an array
of per-engine timelines, we can realise the goal of the previous patch
of tracking the timeline alongside the ring.
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
drivers/gpu/drm/i915/Makefile | 2 +-
drivers/gpu/drm/i915/i915_drv.h | 4 +-
drivers/gpu/drm/i915/i915_gem.c | 117 +++++------
drivers/gpu/drm/i915/i915_gem_context.c | 49 ++---
drivers/gpu/drm/i915/i915_gem_context.h | 2 -
drivers/gpu/drm/i915/i915_gem_gtt.h | 3 +-
drivers/gpu/drm/i915/i915_gem_timeline.c | 198 ------------------
drivers/gpu/drm/i915/i915_gpu_error.c | 4 +-
drivers/gpu/drm/i915/i915_perf.c | 10 +-
drivers/gpu/drm/i915/i915_request.c | 65 +++---
drivers/gpu/drm/i915/i915_request.h | 3 +-
drivers/gpu/drm/i915/i915_timeline.c | 105 ++++++++++
.../{i915_gem_timeline.h => i915_timeline.h} | 67 +++---
drivers/gpu/drm/i915/intel_engine_cs.c | 27 ++-
drivers/gpu/drm/i915/intel_guc_submission.c | 4 +-
drivers/gpu/drm/i915/intel_lrc.c | 48 +++--
drivers/gpu/drm/i915/intel_ringbuffer.c | 23 +-
drivers/gpu/drm/i915/intel_ringbuffer.h | 11 +-
.../{i915_gem_timeline.c => i915_timeline.c} | 94 +++------
drivers/gpu/drm/i915/selftests/mock_engine.c | 36 ++--
.../gpu/drm/i915/selftests/mock_gem_device.c | 11 +-
.../gpu/drm/i915/selftests/mock_timeline.c | 45 ++--
.../gpu/drm/i915/selftests/mock_timeline.h | 28 +--
23 files changed, 391 insertions(+), 565 deletions(-)
delete mode 100644 drivers/gpu/drm/i915/i915_gem_timeline.c
create mode 100644 drivers/gpu/drm/i915/i915_timeline.c
rename drivers/gpu/drm/i915/{i915_gem_timeline.h => i915_timeline.h} (68%)
rename drivers/gpu/drm/i915/selftests/{i915_gem_timeline.c => i915_timeline.c} (70%)
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 9bee52a949a9..120db21fcd50 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -67,11 +67,11 @@ i915-y += i915_cmd_parser.o \
i915_gem_shrinker.o \
i915_gem_stolen.o \
i915_gem_tiling.o \
- i915_gem_timeline.o \
i915_gem_userptr.o \
i915_gemfs.o \
i915_query.o \
i915_request.o \
+ i915_timeline.o \
i915_trace_points.o \
i915_vma.o \
intel_breadcrumbs.o \
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f3a898feaa91..54f9abdf05ba 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -72,10 +72,10 @@
#include "i915_gem_fence_reg.h"
#include "i915_gem_object.h"
#include "i915_gem_gtt.h"
-#include "i915_gem_timeline.h"
#include "i915_gpu_error.h"
#include "i915_request.h"
#include "i915_scheduler.h"
+#include "i915_timeline.h"
#include "i915_vma.h"
#include "intel_gvt.h"
@@ -2055,8 +2055,6 @@ struct drm_i915_private {
void (*resume)(struct drm_i915_private *);
void (*cleanup_engine)(struct intel_engine_cs *engine);
- struct i915_gem_timeline execution_timeline;
- struct i915_gem_timeline legacy_timeline;
struct list_head timelines;
struct list_head rings;
u32 active_requests;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0c5aef67b302..eebffcd8f916 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -161,7 +161,7 @@ static u32 __i915_gem_park(struct drm_i915_private *i915)
synchronize_irq(i915->drm.irq);
intel_engines_park(i915);
- i915_gem_timelines_park(i915);
+ i915_timelines_park(i915);
i915_pmu_gt_parked(i915);
@@ -2976,8 +2976,8 @@ i915_gem_find_active_request(struct intel_engine_cs *engine)
* extra delay for a recent interrupt is pointless. Hence, we do
* not need an engine->irq_seqno_barrier() before the seqno reads.
*/
- spin_lock_irqsave(&engine->timeline->lock, flags);
- list_for_each_entry(request, &engine->timeline->requests, link) {
+ spin_lock_irqsave(&engine->timeline.lock, flags);
+ list_for_each_entry(request, &engine->timeline.requests, link) {
if (__i915_request_completed(request, request->global_seqno))
continue;
@@ -2988,7 +2988,7 @@ i915_gem_find_active_request(struct intel_engine_cs *engine)
active = request;
break;
}
- spin_unlock_irqrestore(&engine->timeline->lock, flags);
+ spin_unlock_irqrestore(&engine->timeline.lock, flags);
return active;
}
@@ -3109,15 +3109,15 @@ static void engine_skip_context(struct i915_request *request)
{
struct intel_engine_cs *engine = request->engine;
struct i915_gem_context *hung_ctx = request->ctx;
- struct intel_timeline *timeline = request->timeline;
+ struct i915_timeline *timeline = request->timeline;
unsigned long flags;
- GEM_BUG_ON(timeline == engine->timeline);
+ GEM_BUG_ON(timeline == &engine->timeline);
- spin_lock_irqsave(&engine->timeline->lock, flags);
+ spin_lock_irqsave(&engine->timeline.lock, flags);
spin_lock(&timeline->lock);
- list_for_each_entry_continue(request, &engine->timeline->requests, link)
+ list_for_each_entry_continue(request, &engine->timeline.requests, link)
if (request->ctx == hung_ctx)
skip_request(request);
@@ -3125,7 +3125,7 @@ static void engine_skip_context(struct i915_request *request)
skip_request(request);
spin_unlock(&timeline->lock);
- spin_unlock_irqrestore(&engine->timeline->lock, flags);
+ spin_unlock_irqrestore(&engine->timeline.lock, flags);
}
/* Returns the request if it was guilty of the hang */
@@ -3182,11 +3182,11 @@ i915_gem_reset_request(struct intel_engine_cs *engine,
dma_fence_set_error(&request->fence, -EAGAIN);
/* Rewind the engine to replay the incomplete rq */
- spin_lock_irq(&engine->timeline->lock);
+ spin_lock_irq(&engine->timeline.lock);
request = list_prev_entry(request, link);
- if (&request->link == &engine->timeline->requests)
+ if (&request->link == &engine->timeline.requests)
request = NULL;
- spin_unlock_irq(&engine->timeline->lock);
+ spin_unlock_irq(&engine->timeline.lock);
}
}
@@ -3299,10 +3299,10 @@ static void nop_complete_submit_request(struct i915_request *request)
request->fence.context, request->fence.seqno);
dma_fence_set_error(&request->fence, -EIO);
- spin_lock_irqsave(&request->engine->timeline->lock, flags);
+ spin_lock_irqsave(&request->engine->timeline.lock, flags);
__i915_request_submit(request);
intel_engine_init_global_seqno(request->engine, request->global_seqno);
- spin_unlock_irqrestore(&request->engine->timeline->lock, flags);
+ spin_unlock_irqrestore(&request->engine->timeline.lock, flags);
}
void i915_gem_set_wedged(struct drm_i915_private *i915)
@@ -3371,10 +3371,10 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
* (lockless) lookup doesn't try and wait upon the request as we
* reset it.
*/
- spin_lock_irqsave(&engine->timeline->lock, flags);
+ spin_lock_irqsave(&engine->timeline.lock, flags);
intel_engine_init_global_seqno(engine,
intel_engine_last_submit(engine));
- spin_unlock_irqrestore(&engine->timeline->lock, flags);
+ spin_unlock_irqrestore(&engine->timeline.lock, flags);
i915_gem_reset_finish_engine(engine);
}
@@ -3386,8 +3386,7 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
bool i915_gem_unset_wedged(struct drm_i915_private *i915)
{
- struct i915_gem_timeline *tl;
- int i;
+ struct i915_timeline *tl;
lockdep_assert_held(&i915->drm.struct_mutex);
if (!test_bit(I915_WEDGED, &i915->gpu_error.flags))
@@ -3406,29 +3405,27 @@ bool i915_gem_unset_wedged(struct drm_i915_private *i915)
* No more can be submitted until we reset the wedged bit.
*/
list_for_each_entry(tl, &i915->gt.timelines, link) {
- for (i = 0; i < ARRAY_SIZE(tl->engine); i++) {
- struct i915_request *rq;
+ struct i915_request *rq;
- rq = i915_gem_active_peek(&tl->engine[i].last_request,
- &i915->drm.struct_mutex);
- if (!rq)
- continue;
+ rq = i915_gem_active_peek(&tl->last_request,
+ &i915->drm.struct_mutex);
+ if (!rq)
+ continue;
- /*
- * We can't use our normal waiter as we want to
- * avoid recursively trying to handle the current
- * reset. The basic dma_fence_default_wait() installs
- * a callback for dma_fence_signal(), which is
- * triggered by our nop handler (indirectly, the
- * callback enables the signaler thread which is
- * woken by the nop_submit_request() advancing the seqno
- * and when the seqno passes the fence, the signaler
- * then signals the fence waking us up).
- */
- if (dma_fence_default_wait(&rq->fence, true,
- MAX_SCHEDULE_TIMEOUT) < 0)
- return false;
- }
+ /*
+ * We can't use our normal waiter as we want to
+ * avoid recursively trying to handle the current
+ * reset. The basic dma_fence_default_wait() installs
+ * a callback for dma_fence_signal(), which is
+ * triggered by our nop handler (indirectly, the
+ * callback enables the signaler thread which is
+ * woken by the nop_submit_request() advancing the seqno
+ * and when the seqno passes the fence, the signaler
+ * then signals the fence waking us up).
+ */
+ if (dma_fence_default_wait(&rq->fence, true,
+ MAX_SCHEDULE_TIMEOUT) < 0)
+ return false;
}
i915_retire_requests(i915);
GEM_BUG_ON(i915->gt.active_requests);
@@ -3733,19 +3730,6 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
return ret;
}
-static int wait_for_timeline(struct i915_gem_timeline *tl, unsigned int flags)
-{
- int ret, i;
-
- for (i = 0; i < ARRAY_SIZE(tl->engine); i++) {
- ret = i915_gem_active_wait(&tl->engine[i].last_request, flags);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
static int wait_for_engines(struct drm_i915_private *i915)
{
if (wait_for(intel_engines_are_idle(i915), I915_IDLE_ENGINES_TIMEOUT)) {
@@ -3768,12 +3752,12 @@ int i915_gem_wait_for_idle(struct drm_i915_private *i915, unsigned int flags)
return 0;
if (flags & I915_WAIT_LOCKED) {
- struct i915_gem_timeline *tl;
+ struct i915_timeline *tl;
lockdep_assert_held(&i915->drm.struct_mutex);
list_for_each_entry(tl, &i915->gt.timelines, link) {
- ret = wait_for_timeline(tl, flags);
+ ret = i915_gem_active_wait(&tl->last_request, flags);
if (ret)
return ret;
}
@@ -3781,7 +3765,16 @@ int i915_gem_wait_for_idle(struct drm_i915_private *i915, unsigned int flags)
ret = wait_for_engines(i915);
} else {
- ret = wait_for_timeline(&i915->gt.execution_timeline, flags);
+ struct intel_engine_cs *engine;
+ enum intel_engine_id id;
+
+ for_each_engine(engine, i915, id) {
+ struct i915_timeline *tl = &engine->timeline;
+
+ ret = i915_gem_active_wait(&tl->last_request, flags);
+ if (ret)
+ return ret;
+ }
}
return ret;
@@ -4953,7 +4946,7 @@ static void assert_kernel_context_is_current(struct drm_i915_private *i915)
enum intel_engine_id id;
for_each_engine(engine, i915, id) {
- GEM_BUG_ON(__i915_gem_active_peek(&engine->timeline->last_request));
+ GEM_BUG_ON(__i915_gem_active_peek(&engine->timeline.last_request));
GEM_BUG_ON(engine->last_retired_context != kernel_context);
}
}
@@ -5599,13 +5592,8 @@ int i915_gem_init_early(struct drm_i915_private *dev_priv)
if (!dev_priv->priorities)
goto err_dependencies;
- mutex_lock(&dev_priv->drm.struct_mutex);
INIT_LIST_HEAD(&dev_priv->gt.rings);
INIT_LIST_HEAD(&dev_priv->gt.timelines);
- err = i915_gem_timeline_init__global(dev_priv);
- mutex_unlock(&dev_priv->drm.struct_mutex);
- if (err)
- goto err_priorities;
i915_gem_init__mm(dev_priv);
@@ -5626,8 +5614,6 @@ int i915_gem_init_early(struct drm_i915_private *dev_priv)
return 0;
-err_priorities:
- kmem_cache_destroy(dev_priv->priorities);
err_dependencies:
kmem_cache_destroy(dev_priv->dependencies);
err_requests:
@@ -5648,12 +5634,7 @@ void i915_gem_cleanup_early(struct drm_i915_private *dev_priv)
GEM_BUG_ON(!llist_empty(&dev_priv->mm.free_list));
GEM_BUG_ON(atomic_read(&dev_priv->mm.free_count));
WARN_ON(dev_priv->mm.object_count);
-
- mutex_lock(&dev_priv->drm.struct_mutex);
- i915_gem_timeline_fini(&dev_priv->gt.legacy_timeline);
- i915_gem_timeline_fini(&dev_priv->gt.execution_timeline);
WARN_ON(!list_empty(&dev_priv->gt.timelines));
- mutex_unlock(&dev_priv->drm.struct_mutex);
kmem_cache_destroy(dev_priv->priorities);
kmem_cache_destroy(dev_priv->dependencies);
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 58b185abe652..027b7ddae1d3 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -122,7 +122,6 @@ static void i915_gem_context_free(struct i915_gem_context *ctx)
lockdep_assert_held(&ctx->i915->drm.struct_mutex);
GEM_BUG_ON(!i915_gem_context_is_closed(ctx));
- i915_gem_timeline_free(ctx->timeline);
i915_ppgtt_put(ctx->ppgtt);
for (i = 0; i < I915_NUM_ENGINES; i++) {
@@ -377,18 +376,6 @@ i915_gem_create_context(struct drm_i915_private *dev_priv,
ctx->desc_template = default_desc_template(dev_priv, ppgtt);
}
- if (HAS_EXECLISTS(dev_priv)) {
- struct i915_gem_timeline *timeline;
-
- timeline = i915_gem_timeline_create(dev_priv, ctx->name);
- if (IS_ERR(timeline)) {
- __destroy_hw_context(ctx, file_priv);
- return ERR_CAST(timeline);
- }
-
- ctx->timeline = timeline;
- }
-
trace_i915_context_create(ctx);
return ctx;
@@ -590,21 +577,30 @@ void i915_gem_context_close(struct drm_file *file)
idr_destroy(&file_priv->context_idr);
}
-static bool engine_has_idle_kernel_context(struct intel_engine_cs *engine)
+static struct i915_request *
+last_timeline_request(struct i915_timeline *timeline,
+ struct intel_engine_cs *engine)
{
- struct i915_gem_timeline *timeline;
+ struct i915_request *rq;
- list_for_each_entry(timeline, &engine->i915->gt.timelines, link) {
- struct intel_timeline *tl;
+ if (timeline == &engine->timeline)
+ return NULL;
- if (timeline == &engine->i915->gt.execution_timeline)
- continue;
+ rq = i915_gem_active_raw(&timeline->last_request,
+ &engine->i915->drm.struct_mutex);
+ if (rq && rq->engine == engine)
+ return rq;
+
+ return NULL;
+}
- tl = &timeline->engine[engine->id];
- if (i915_gem_active_peek(&tl->last_request,
- &engine->i915->drm.struct_mutex))
+static bool engine_has_idle_kernel_context(struct intel_engine_cs *engine)
+{
+ struct i915_timeline *timeline;
+
+ list_for_each_entry(timeline, &engine->i915->gt.timelines, link)
+ if (last_timeline_request(timeline, engine))
return false;
- }
return intel_engine_has_kernel_context(engine);
}
@@ -612,7 +608,7 @@ static bool engine_has_idle_kernel_context(struct intel_engine_cs *engine)
int i915_gem_switch_to_kernel_context(struct drm_i915_private *dev_priv)
{
struct intel_engine_cs *engine;
- struct i915_gem_timeline *timeline;
+ struct i915_timeline *timeline;
enum intel_engine_id id;
lockdep_assert_held(&dev_priv->drm.struct_mutex);
@@ -632,11 +628,8 @@ int i915_gem_switch_to_kernel_context(struct drm_i915_private *dev_priv)
/* Queue this switch after all other activity */
list_for_each_entry(timeline, &dev_priv->gt.timelines, link) {
struct i915_request *prev;
- struct intel_timeline *tl;
- tl = &timeline->engine[engine->id];
- prev = i915_gem_active_raw(&tl->last_request,
- &dev_priv->drm.struct_mutex);
+ prev = last_timeline_request(timeline, engine);
if (prev)
i915_sw_fence_await_sw_fence_gfp(&rq->submit,
&prev->submit,
diff --git a/drivers/gpu/drm/i915/i915_gem_context.h b/drivers/gpu/drm/i915/i915_gem_context.h
index 140edcb424df..b12a8a8c5af9 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.h
+++ b/drivers/gpu/drm/i915/i915_gem_context.h
@@ -58,8 +58,6 @@ struct i915_gem_context {
/** file_priv: owning file descriptor */
struct drm_i915_file_private *file_priv;
- struct i915_gem_timeline *timeline;
-
/**
* @ppgtt: unique address space (GTT)
*
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 98107925de48..1db0dedb4059 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -38,10 +38,9 @@
#include <linux/mm.h>
#include <linux/pagevec.h>
-#include "i915_gem_timeline.h"
-
#include "i915_request.h"
#include "i915_selftest.h"
+#include "i915_timeline.h"
#define I915_GTT_PAGE_SIZE_4K BIT(12)
#define I915_GTT_PAGE_SIZE_64K BIT(16)
diff --git a/drivers/gpu/drm/i915/i915_gem_timeline.c b/drivers/gpu/drm/i915/i915_gem_timeline.c
deleted file mode 100644
index 24f4068cc137..000000000000
--- a/drivers/gpu/drm/i915/i915_gem_timeline.c
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * Copyright © 2016 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- *
- */
-
-#include "i915_drv.h"
-#include "i915_syncmap.h"
-
-static void __intel_timeline_init(struct intel_timeline *tl,
- struct i915_gem_timeline *parent,
- u64 context,
- struct lock_class_key *lockclass,
- const char *lockname)
-{
- tl->fence_context = context;
- tl->common = parent;
- spin_lock_init(&tl->lock);
- lockdep_set_class_and_name(&tl->lock, lockclass, lockname);
- init_request_active(&tl->last_request, NULL);
- INIT_LIST_HEAD(&tl->requests);
- i915_syncmap_init(&tl->sync);
-}
-
-static void __intel_timeline_fini(struct intel_timeline *tl)
-{
- GEM_BUG_ON(!list_empty(&tl->requests));
-
- i915_syncmap_free(&tl->sync);
-}
-
-static int __i915_gem_timeline_init(struct drm_i915_private *i915,
- struct i915_gem_timeline *timeline,
- const char *name,
- struct lock_class_key *lockclass,
- const char *lockname)
-{
- unsigned int i;
- u64 fences;
-
- lockdep_assert_held(&i915->drm.struct_mutex);
-
- /*
- * Ideally we want a set of engines on a single leaf as we expect
- * to mostly be tracking synchronisation between engines. It is not
- * a huge issue if this is not the case, but we may want to mitigate
- * any page crossing penalties if they become an issue.
- */
- BUILD_BUG_ON(KSYNCMAP < I915_NUM_ENGINES);
-
- timeline->i915 = i915;
- timeline->name = kstrdup(name ?: "[kernel]", GFP_KERNEL);
- if (!timeline->name)
- return -ENOMEM;
-
- list_add(&timeline->link, &i915->gt.timelines);
-
- /* Called during early_init before we know how many engines there are */
- fences = dma_fence_context_alloc(ARRAY_SIZE(timeline->engine));
- for (i = 0; i < ARRAY_SIZE(timeline->engine); i++)
- __intel_timeline_init(&timeline->engine[i],
- timeline, fences++,
- lockclass, lockname);
-
- return 0;
-}
-
-int i915_gem_timeline_init(struct drm_i915_private *i915,
- struct i915_gem_timeline *timeline,
- const char *name)
-{
- static struct lock_class_key class;
-
- return __i915_gem_timeline_init(i915, timeline, name,
- &class, "&timeline->lock");
-}
-
-int i915_gem_timeline_init__global(struct drm_i915_private *i915)
-{
- static struct lock_class_key class1, class2;
- int err;
-
- err = __i915_gem_timeline_init(i915,
- &i915->gt.execution_timeline,
- "[execution]", &class1,
- "i915_execution_timeline");
- if (err)
- return err;
-
- err = __i915_gem_timeline_init(i915,
- &i915->gt.legacy_timeline,
- "[global]", &class2,
- "i915_global_timeline");
- if (err)
- goto err_exec_timeline;
-
- return 0;
-
-err_exec_timeline:
- i915_gem_timeline_fini(&i915->gt.execution_timeline);
- return err;
-}
-
-/**
- * i915_gem_timelines_park - called when the driver idles
- * @i915: the drm_i915_private device
- *
- * When the driver is completely idle, we know that all of our sync points
- * have been signaled and our tracking is then entirely redundant. Any request
- * to wait upon an older sync point will be completed instantly as we know
- * the fence is signaled and therefore we will not even look them up in the
- * sync point map.
- */
-void i915_gem_timelines_park(struct drm_i915_private *i915)
-{
- struct i915_gem_timeline *timeline;
- int i;
-
- lockdep_assert_held(&i915->drm.struct_mutex);
-
- list_for_each_entry(timeline, &i915->gt.timelines, link) {
- for (i = 0; i < ARRAY_SIZE(timeline->engine); i++) {
- struct intel_timeline *tl = &timeline->engine[i];
-
- /*
- * All known fences are completed so we can scrap
- * the current sync point tracking and start afresh,
- * any attempt to wait upon a previous sync point
- * will be skipped as the fence was signaled.
- */
- i915_syncmap_free(&tl->sync);
- }
- }
-}
-
-void i915_gem_timeline_fini(struct i915_gem_timeline *timeline)
-{
- int i;
-
- lockdep_assert_held(&timeline->i915->drm.struct_mutex);
-
- for (i = 0; i < ARRAY_SIZE(timeline->engine); i++)
- __intel_timeline_fini(&timeline->engine[i]);
-
- list_del(&timeline->link);
- kfree(timeline->name);
-}
-
-struct i915_gem_timeline *
-i915_gem_timeline_create(struct drm_i915_private *i915, const char *name)
-{
- struct i915_gem_timeline *timeline;
- int err;
-
- timeline = kzalloc(sizeof(*timeline), GFP_KERNEL);
- if (!timeline)
- return ERR_PTR(-ENOMEM);
-
- err = i915_gem_timeline_init(i915, timeline, name);
- if (err) {
- kfree(timeline);
- return ERR_PTR(err);
- }
-
- return timeline;
-}
-
-void i915_gem_timeline_free(struct i915_gem_timeline *timeline)
-{
- if (!timeline)
- return;
-
- i915_gem_timeline_fini(timeline);
- kfree(timeline);
-}
-
-#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
-#include "selftests/mock_timeline.c"
-#include "selftests/i915_gem_timeline.c"
-#endif
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 671ffa37614e..71bb8230cb97 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1299,7 +1299,7 @@ static void engine_record_requests(struct intel_engine_cs *engine,
count = 0;
request = first;
- list_for_each_entry_from(request, &engine->timeline->requests, link)
+ list_for_each_entry_from(request, &engine->timeline.requests, link)
count++;
if (!count)
return;
@@ -1312,7 +1312,7 @@ static void engine_record_requests(struct intel_engine_cs *engine,
count = 0;
request = first;
- list_for_each_entry_from(request, &engine->timeline->requests, link) {
+ list_for_each_entry_from(request, &engine->timeline.requests, link) {
if (count >= ee->num_requests) {
/*
* If the ring request list was changed in
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index bfc906cd4e5e..5dcd76e27c68 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1695,7 +1695,7 @@ static int gen8_switch_to_updated_kernel_context(struct drm_i915_private *dev_pr
const struct i915_oa_config *oa_config)
{
struct intel_engine_cs *engine = dev_priv->engine[RCS];
- struct i915_gem_timeline *timeline;
+ struct i915_timeline *timeline;
struct i915_request *rq;
int ret;
@@ -1716,15 +1716,11 @@ static int gen8_switch_to_updated_kernel_context(struct drm_i915_private *dev_pr
/* Queue this switch after all other activity */
list_for_each_entry(timeline, &dev_priv->gt.timelines, link) {
struct i915_request *prev;
- struct intel_timeline *tl;
- tl = &timeline->engine[engine->id];
- prev = i915_gem_active_raw(&tl->last_request,
+ prev = i915_gem_active_raw(&timeline->last_request,
&dev_priv->drm.struct_mutex);
if (prev)
- i915_sw_fence_await_sw_fence_gfp(&rq->submit,
- &prev->submit,
- GFP_KERNEL);
+ i915_request_await_dma_fence(rq, &prev->fence);
}
i915_request_add(rq);
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 844de5481788..fe5cf66d013e 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -49,7 +49,7 @@ static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
return "signaled";
- return to_request(fence)->timeline->common->name;
+ return to_request(fence)->timeline->name;
}
static bool i915_fence_signaled(struct dma_fence *fence)
@@ -199,6 +199,7 @@ i915_sched_node_init(struct i915_sched_node *node)
static int reset_all_global_seqno(struct drm_i915_private *i915, u32 seqno)
{
struct intel_engine_cs *engine;
+ struct i915_timeline *timeline;
enum intel_engine_id id;
int ret;
@@ -213,16 +214,13 @@ static int reset_all_global_seqno(struct drm_i915_private *i915, u32 seqno)
/* If the seqno wraps around, we need to clear the breadcrumb rbtree */
for_each_engine(engine, i915, id) {
- struct i915_gem_timeline *timeline;
- struct intel_timeline *tl = engine->timeline;
-
GEM_TRACE("%s seqno %d (current %d) -> %d\n",
engine->name,
- tl->seqno,
+ engine->timeline.seqno,
intel_engine_get_seqno(engine),
seqno);
- if (!i915_seqno_passed(seqno, tl->seqno)) {
+ if (!i915_seqno_passed(seqno, engine->timeline.seqno)) {
/* Flush any waiters before we reuse the seqno */
intel_engine_disarm_breadcrumbs(engine);
GEM_BUG_ON(!list_empty(&engine->breadcrumbs.signals));
@@ -230,17 +228,16 @@ static int reset_all_global_seqno(struct drm_i915_private *i915, u32 seqno)
/* Check we are idle before we fiddle with hw state! */
GEM_BUG_ON(!intel_engine_is_idle(engine));
- GEM_BUG_ON(i915_gem_active_isset(&engine->timeline->last_request));
+ GEM_BUG_ON(i915_gem_active_isset(&engine->timeline.last_request));
/* Finally reset hw state */
intel_engine_init_global_seqno(engine, seqno);
- tl->seqno = seqno;
-
- list_for_each_entry(timeline, &i915->gt.timelines, link)
- memset(timeline->engine[id].global_sync, 0,
- sizeof(timeline->engine[id].global_sync));
+ engine->timeline.seqno = seqno;
}
+ list_for_each_entry(timeline, &i915->gt.timelines, link)
+ memset(timeline->global_sync, 0, sizeof(timeline->global_sync));
+
return 0;
}
@@ -263,7 +260,7 @@ static int reserve_engine(struct intel_engine_cs *engine)
int ret;
/* Reservation is fine until we need to wrap around */
- if (unlikely(add_overflows(engine->timeline->seqno,
+ if (unlikely(add_overflows(engine->timeline.seqno,
i915->gt.active_requests + 1))) {
ret = reset_all_global_seqno(i915, 0);
if (ret)
@@ -355,9 +352,9 @@ static void i915_request_retire(struct i915_request *request)
trace_i915_request_retire(request);
- spin_lock_irq(&engine->timeline->lock);
+ spin_lock_irq(&engine->timeline.lock);
list_del_init(&request->link);
- spin_unlock_irq(&engine->timeline->lock);
+ spin_unlock_irq(&engine->timeline.lock);
unreserve_engine(request->engine);
advance_ring(request);
@@ -444,16 +441,16 @@ void i915_request_retire_upto(struct i915_request *rq)
} while (tmp != rq);
}
-static u32 timeline_get_seqno(struct intel_timeline *tl)
+static u32 timeline_get_seqno(struct i915_timeline *tl)
{
return ++tl->seqno;
}
static void move_to_timeline(struct i915_request *request,
- struct intel_timeline *timeline)
+ struct i915_timeline *timeline)
{
- GEM_BUG_ON(request->timeline == request->engine->timeline);
- lockdep_assert_held(&request->engine->timeline->lock);
+ GEM_BUG_ON(request->timeline == &request->engine->timeline);
+ lockdep_assert_held(&request->engine->timeline.lock);
spin_lock(&request->timeline->lock);
list_move_tail(&request->link, &timeline->requests);
@@ -468,15 +465,15 @@ void __i915_request_submit(struct i915_request *request)
GEM_TRACE("%s fence %llx:%d -> global=%d, current %d\n",
engine->name,
request->fence.context, request->fence.seqno,
- engine->timeline->seqno + 1,
+ engine->timeline.seqno + 1,
intel_engine_get_seqno(engine));
GEM_BUG_ON(!irqs_disabled());
- lockdep_assert_held(&engine->timeline->lock);
+ lockdep_assert_held(&engine->timeline.lock);
GEM_BUG_ON(request->global_seqno);
- seqno = timeline_get_seqno(engine->timeline);
+ seqno = timeline_get_seqno(&engine->timeline);
GEM_BUG_ON(!seqno);
GEM_BUG_ON(i915_seqno_passed(intel_engine_get_seqno(engine), seqno));
@@ -491,7 +488,7 @@ void __i915_request_submit(struct i915_request *request)
request->ring->vaddr + request->postfix);
/* Transfer from per-context onto the global per-engine timeline */
- move_to_timeline(request, engine->timeline);
+ move_to_timeline(request, &engine->timeline);
trace_i915_request_execute(request);
@@ -504,11 +501,11 @@ void i915_request_submit(struct i915_request *request)
unsigned long flags;
/* Will be called from irq-context when using foreign fences. */
- spin_lock_irqsave(&engine->timeline->lock, flags);
+ spin_lock_irqsave(&engine->timeline.lock, flags);
__i915_request_submit(request);
- spin_unlock_irqrestore(&engine->timeline->lock, flags);
+ spin_unlock_irqrestore(&engine->timeline.lock, flags);
}
void __i915_request_unsubmit(struct i915_request *request)
@@ -522,17 +519,17 @@ void __i915_request_unsubmit(struct i915_request *request)
intel_engine_get_seqno(engine));
GEM_BUG_ON(!irqs_disabled());
- lockdep_assert_held(&engine->timeline->lock);
+ lockdep_assert_held(&engine->timeline.lock);
/*
* Only unwind in reverse order, required so that the per-context list
* is kept in seqno/ring order.
*/
GEM_BUG_ON(!request->global_seqno);
- GEM_BUG_ON(request->global_seqno != engine->timeline->seqno);
+ GEM_BUG_ON(request->global_seqno != engine->timeline.seqno);
GEM_BUG_ON(i915_seqno_passed(intel_engine_get_seqno(engine),
request->global_seqno));
- engine->timeline->seqno--;
+ engine->timeline.seqno--;
/* We may be recursing from the signal callback of another i915 fence */
spin_lock_nested(&request->lock, SINGLE_DEPTH_NESTING);
@@ -559,11 +556,11 @@ void i915_request_unsubmit(struct i915_request *request)
unsigned long flags;
/* Will be called from irq-context when using foreign fences. */
- spin_lock_irqsave(&engine->timeline->lock, flags);
+ spin_lock_irqsave(&engine->timeline.lock, flags);
__i915_request_unsubmit(request);
- spin_unlock_irqrestore(&engine->timeline->lock, flags);
+ spin_unlock_irqrestore(&engine->timeline.lock, flags);
}
static int __i915_sw_fence_call
@@ -638,7 +635,7 @@ i915_request_alloc(struct intel_engine_cs *engine, struct i915_gem_context *ctx)
if (IS_ERR(ring))
return ERR_CAST(ring);
GEM_BUG_ON(!ring);
- GEM_BUG_ON(ring->timeline == engine->timeline);
+ GEM_BUG_ON(ring->timeline == &engine->timeline);
ret = reserve_engine(engine);
if (ret)
@@ -878,7 +875,7 @@ i915_request_await_dma_fence(struct i915_request *rq, struct dma_fence *fence)
/* Squash repeated waits to the same timelines */
if (fence->context != rq->i915->mm.unordered_timeline &&
- intel_timeline_sync_is_later(rq->timeline, fence))
+ i915_timeline_sync_is_later(rq->timeline, fence))
continue;
if (dma_fence_is_i915(fence))
@@ -892,7 +889,7 @@ i915_request_await_dma_fence(struct i915_request *rq, struct dma_fence *fence)
/* Record the latest fence used against each timeline */
if (fence->context != rq->i915->mm.unordered_timeline)
- intel_timeline_sync_set(rq->timeline, fence);
+ i915_timeline_sync_set(rq->timeline, fence);
} while (--nchild);
return 0;
@@ -969,7 +966,7 @@ void __i915_request_add(struct i915_request *request, bool flush_caches)
{
struct intel_engine_cs *engine = request->engine;
struct intel_ring *ring = request->ring;
- struct intel_timeline *timeline = request->timeline;
+ struct i915_timeline *timeline = request->timeline;
struct i915_request *prev;
u32 *cs;
int err;
diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index 8f31ca8272f8..eddbd4245cb3 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -37,6 +37,7 @@
struct drm_file;
struct drm_i915_gem_object;
struct i915_request;
+struct i915_timeline;
struct intel_wait {
struct rb_node node;
@@ -95,7 +96,7 @@ struct i915_request {
struct i915_gem_context *ctx;
struct intel_engine_cs *engine;
struct intel_ring *ring;
- struct intel_timeline *timeline;
+ struct i915_timeline *timeline;
struct intel_signal_node signaling;
/*
diff --git a/drivers/gpu/drm/i915/i915_timeline.c b/drivers/gpu/drm/i915/i915_timeline.c
new file mode 100644
index 000000000000..4667cc08c416
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_timeline.c
@@ -0,0 +1,105 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2016-2018 Intel Corporation
+ */
+
+#include "i915_drv.h"
+
+#include "i915_timeline.h"
+#include "i915_syncmap.h"
+
+void i915_timeline_init(struct drm_i915_private *i915,
+ struct i915_timeline *timeline,
+ const char *name)
+{
+ lockdep_assert_held(&i915->drm.struct_mutex);
+
+ /*
+ * Ideally we want a set of engines on a single leaf as we expect
+ * to mostly be tracking synchronisation between engines. It is not
+ * a huge issue if this is not the case, but we may want to mitigate
+ * any page crossing penalties if they become an issue.
+ */
+ BUILD_BUG_ON(KSYNCMAP < I915_NUM_ENGINES);
+
+ timeline->name = name;
+
+ list_add(&timeline->link, &i915->gt.timelines);
+
+ /* Called during early_init before we know how many engines there are */
+
+ timeline->fence_context = dma_fence_context_alloc(1);
+
+ spin_lock_init(&timeline->lock);
+
+ init_request_active(&timeline->last_request, NULL);
+ INIT_LIST_HEAD(&timeline->requests);
+
+ i915_syncmap_init(&timeline->sync);
+}
+
+/**
+ * i915_timelines_park - called when the driver idles
+ * @i915: the drm_i915_private device
+ *
+ * When the driver is completely idle, we know that all of our sync points
+ * have been signaled and our tracking is then entirely redundant. Any request
+ * to wait upon an older sync point will be completed instantly as we know
+ * the fence is signaled and therefore we will not even look them up in the
+ * sync point map.
+ */
+void i915_timelines_park(struct drm_i915_private *i915)
+{
+ struct i915_timeline *timeline;
+
+ lockdep_assert_held(&i915->drm.struct_mutex);
+
+ list_for_each_entry(timeline, &i915->gt.timelines, link) {
+ /*
+ * All known fences are completed so we can scrap
+ * the current sync point tracking and start afresh,
+ * any attempt to wait upon a previous sync point
+ * will be skipped as the fence was signaled.
+ */
+ i915_syncmap_free(&timeline->sync);
+ }
+}
+
+void i915_timeline_fini(struct i915_timeline *timeline)
+{
+ GEM_BUG_ON(!list_empty(&timeline->requests));
+
+ i915_syncmap_free(&timeline->sync);
+
+ list_del(&timeline->link);
+}
+
+struct i915_timeline *
+i915_timeline_create(struct drm_i915_private *i915, const char *name)
+{
+ struct i915_timeline *timeline;
+
+ timeline = kzalloc(sizeof(*timeline), GFP_KERNEL);
+ if (!timeline)
+ return ERR_PTR(-ENOMEM);
+
+ i915_timeline_init(i915, timeline, name);
+ kref_init(&timeline->kref);
+
+ return timeline;
+}
+
+void __i915_timeline_free(struct kref *kref)
+{
+ struct i915_timeline *timeline =
+ container_of(kref, typeof(*timeline), kref);
+
+ i915_timeline_fini(timeline);
+ kfree(timeline);
+}
+
+#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
+#include "selftests/mock_timeline.c"
+#include "selftests/i915_timeline.c"
+#endif
diff --git a/drivers/gpu/drm/i915/i915_gem_timeline.h b/drivers/gpu/drm/i915/i915_timeline.h
similarity index 68%
rename from drivers/gpu/drm/i915/i915_gem_timeline.h
rename to drivers/gpu/drm/i915/i915_timeline.h
index 780ed465c4fc..dc2a4632faa7 100644
--- a/drivers/gpu/drm/i915/i915_gem_timeline.h
+++ b/drivers/gpu/drm/i915/i915_timeline.h
@@ -22,18 +22,17 @@
*
*/
-#ifndef I915_GEM_TIMELINE_H
-#define I915_GEM_TIMELINE_H
+#ifndef I915_TIMELINE_H
+#define I915_TIMELINE_H
#include <linux/list.h>
+#include <linux/kref.h>
#include "i915_request.h"
#include "i915_syncmap.h"
#include "i915_utils.h"
-struct i915_gem_timeline;
-
-struct intel_timeline {
+struct i915_timeline {
u64 fence_context;
u32 seqno;
@@ -71,51 +70,57 @@ struct intel_timeline {
*/
u32 global_sync[I915_NUM_ENGINES];
- struct i915_gem_timeline *common;
-};
-
-struct i915_gem_timeline {
struct list_head link;
-
- struct drm_i915_private *i915;
const char *name;
- struct intel_timeline engine[I915_NUM_ENGINES];
+ struct kref kref;
};
-int i915_gem_timeline_init(struct drm_i915_private *i915,
- struct i915_gem_timeline *tl,
- const char *name);
-int i915_gem_timeline_init__global(struct drm_i915_private *i915);
-void i915_gem_timelines_park(struct drm_i915_private *i915);
-void i915_gem_timeline_fini(struct i915_gem_timeline *tl);
+void i915_timeline_init(struct drm_i915_private *i915,
+ struct i915_timeline *tl,
+ const char *name);
+void i915_timeline_fini(struct i915_timeline *tl);
-struct i915_gem_timeline *
-i915_gem_timeline_create(struct drm_i915_private *i915, const char *name);
-void i915_gem_timeline_free(struct i915_gem_timeline *timeline);
+struct i915_timeline *
+i915_timeline_create(struct drm_i915_private *i915, const char *name);
-static inline int __intel_timeline_sync_set(struct intel_timeline *tl,
- u64 context, u32 seqno)
+static inline struct i915_timeline *
+i915_timeline_get(struct i915_timeline *timeline)
+{
+ kref_get(&timeline->kref);
+ return timeline;
+}
+
+void __i915_timeline_free(struct kref *kref);
+static inline void i915_timeline_put(struct i915_timeline *timeline)
+{
+ kref_put(&timeline->kref, __i915_timeline_free);
+}
+
+static inline int __i915_timeline_sync_set(struct i915_timeline *tl,
+ u64 context, u32 seqno)
{
return i915_syncmap_set(&tl->sync, context, seqno);
}
-static inline int intel_timeline_sync_set(struct intel_timeline *tl,
- const struct dma_fence *fence)
+static inline int i915_timeline_sync_set(struct i915_timeline *tl,
+ const struct dma_fence *fence)
{
- return __intel_timeline_sync_set(tl, fence->context, fence->seqno);
+ return __i915_timeline_sync_set(tl, fence->context, fence->seqno);
}
-static inline bool __intel_timeline_sync_is_later(struct intel_timeline *tl,
- u64 context, u32 seqno)
+static inline bool __i915_timeline_sync_is_later(struct i915_timeline *tl,
+ u64 context, u32 seqno)
{
return i915_syncmap_is_later(&tl->sync, context, seqno);
}
-static inline bool intel_timeline_sync_is_later(struct intel_timeline *tl,
- const struct dma_fence *fence)
+static inline bool i915_timeline_sync_is_later(struct i915_timeline *tl,
+ const struct dma_fence *fence)
{
- return __intel_timeline_sync_is_later(tl, fence->context, fence->seqno);
+ return __i915_timeline_sync_is_later(tl, fence->context, fence->seqno);
}
+void i915_timelines_park(struct drm_i915_private *i915);
+
#endif
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index d44a8eb83379..dcfdd4439935 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -451,12 +451,6 @@ void intel_engine_init_global_seqno(struct intel_engine_cs *engine, u32 seqno)
GEM_BUG_ON(intel_engine_get_seqno(engine) != seqno);
}
-static void intel_engine_init_timeline(struct intel_engine_cs *engine)
-{
- engine->timeline =
- &engine->i915->gt.execution_timeline.engine[engine->id];
-}
-
static void intel_engine_init_batch_pool(struct intel_engine_cs *engine)
{
i915_gem_batch_pool_init(&engine->batch_pool, engine);
@@ -508,8 +502,9 @@ static void intel_engine_init_execlist(struct intel_engine_cs *engine)
*/
void intel_engine_setup_common(struct intel_engine_cs *engine)
{
+ i915_timeline_init(engine->i915, &engine->timeline, engine->name);
+
intel_engine_init_execlist(engine);
- intel_engine_init_timeline(engine);
intel_engine_init_hangcheck(engine);
intel_engine_init_batch_pool(engine);
intel_engine_init_cmd_parser(engine);
@@ -757,6 +752,8 @@ void intel_engine_cleanup_common(struct intel_engine_cs *engine)
if (engine->i915->preempt_context)
engine->context_unpin(engine, engine->i915->preempt_context);
engine->context_unpin(engine, engine->i915->kernel_context);
+
+ i915_timeline_fini(&engine->timeline);
}
u64 intel_engine_get_active_head(const struct intel_engine_cs *engine)
@@ -1009,7 +1006,7 @@ bool intel_engine_has_kernel_context(const struct intel_engine_cs *engine)
* the last request that remains in the timeline. When idle, it is
* the last executed context as tracked by retirement.
*/
- rq = __i915_gem_active_peek(&engine->timeline->last_request);
+ rq = __i915_gem_active_peek(&engine->timeline.last_request);
if (rq)
return rq->ctx == kernel_context;
else
@@ -1332,14 +1329,14 @@ void intel_engine_dump(struct intel_engine_cs *engine,
drm_printf(m, "\tRequests:\n");
- rq = list_first_entry(&engine->timeline->requests,
+ rq = list_first_entry(&engine->timeline.requests,
struct i915_request, link);
- if (&rq->link != &engine->timeline->requests)
+ if (&rq->link != &engine->timeline.requests)
print_request(m, rq, "\t\tfirst ");
- rq = list_last_entry(&engine->timeline->requests,
+ rq = list_last_entry(&engine->timeline.requests,
struct i915_request, link);
- if (&rq->link != &engine->timeline->requests)
+ if (&rq->link != &engine->timeline.requests)
print_request(m, rq, "\t\tlast ");
rq = i915_gem_find_active_request(engine);
@@ -1371,8 +1368,8 @@ void intel_engine_dump(struct intel_engine_cs *engine,
drm_printf(m, "\tDevice is asleep; skipping register dump\n");
}
- spin_lock_irq(&engine->timeline->lock);
- list_for_each_entry(rq, &engine->timeline->requests, link)
+ spin_lock_irq(&engine->timeline.lock);
+ list_for_each_entry(rq, &engine->timeline.requests, link)
print_request(m, rq, "\t\tE ");
drm_printf(m, "\t\tQueue priority: %d\n", execlists->queue_priority);
for (rb = execlists->first; rb; rb = rb_next(rb)) {
@@ -1382,7 +1379,7 @@ void intel_engine_dump(struct intel_engine_cs *engine,
list_for_each_entry(rq, &p->requests, sched.link)
print_request(m, rq, "\t\tQ ");
}
- spin_unlock_irq(&engine->timeline->lock);
+ spin_unlock_irq(&engine->timeline.lock);
spin_lock_irq(&b->rb_lock);
for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) {
diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
index 02da05875aa7..cb4fcde1ffdc 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -677,7 +677,7 @@ static void guc_dequeue(struct intel_engine_cs *engine)
bool submit = false;
struct rb_node *rb;
- spin_lock_irq(&engine->timeline->lock);
+ spin_lock_irq(&engine->timeline.lock);
rb = execlists->first;
GEM_BUG_ON(rb_first(&execlists->queue) != rb);
@@ -748,7 +748,7 @@ static void guc_dequeue(struct intel_engine_cs *engine)
GEM_BUG_ON(execlists->first && !port_isset(execlists->port));
unlock:
- spin_unlock_irq(&engine->timeline->lock);
+ spin_unlock_irq(&engine->timeline.lock);
}
static void guc_submission_tasklet(unsigned long data)
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index fd3539034665..fa802d791804 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -330,10 +330,10 @@ static void __unwind_incomplete_requests(struct intel_engine_cs *engine)
struct i915_priolist *uninitialized_var(p);
int last_prio = I915_PRIORITY_INVALID;
- lockdep_assert_held(&engine->timeline->lock);
+ lockdep_assert_held(&engine->timeline.lock);
list_for_each_entry_safe_reverse(rq, rn,
- &engine->timeline->requests,
+ &engine->timeline.requests,
link) {
if (i915_request_completed(rq))
return;
@@ -357,9 +357,9 @@ execlists_unwind_incomplete_requests(struct intel_engine_execlists *execlists)
struct intel_engine_cs *engine =
container_of(execlists, typeof(*engine), execlists);
- spin_lock_irq(&engine->timeline->lock);
+ spin_lock_irq(&engine->timeline.lock);
__unwind_incomplete_requests(engine);
- spin_unlock_irq(&engine->timeline->lock);
+ spin_unlock_irq(&engine->timeline.lock);
}
static inline void
@@ -583,7 +583,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
* and context switches) submission.
*/
- spin_lock_irq(&engine->timeline->lock);
+ spin_lock_irq(&engine->timeline.lock);
rb = execlists->first;
GEM_BUG_ON(rb_first(&execlists->queue) != rb);
@@ -743,7 +743,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
GEM_BUG_ON(execlists->first && !port_isset(execlists->port));
unlock:
- spin_unlock_irq(&engine->timeline->lock);
+ spin_unlock_irq(&engine->timeline.lock);
if (submit) {
execlists_user_begin(execlists, execlists->port);
@@ -868,10 +868,10 @@ static void execlists_cancel_requests(struct intel_engine_cs *engine)
execlists_cancel_port_requests(execlists);
reset_irq(engine);
- spin_lock(&engine->timeline->lock);
+ spin_lock(&engine->timeline.lock);
/* Mark all executing requests as skipped. */
- list_for_each_entry(rq, &engine->timeline->requests, link) {
+ list_for_each_entry(rq, &engine->timeline.requests, link) {
GEM_BUG_ON(!rq->global_seqno);
if (!i915_request_completed(rq))
dma_fence_set_error(&rq->fence, -EIO);
@@ -903,7 +903,7 @@ static void execlists_cancel_requests(struct intel_engine_cs *engine)
execlists->first = NULL;
GEM_BUG_ON(port_isset(execlists->port));
- spin_unlock(&engine->timeline->lock);
+ spin_unlock(&engine->timeline.lock);
local_irq_restore(flags);
}
@@ -1141,7 +1141,7 @@ static void execlists_submit_request(struct i915_request *request)
unsigned long flags;
/* Will be called from irq-context when using foreign fences. */
- spin_lock_irqsave(&engine->timeline->lock, flags);
+ spin_lock_irqsave(&engine->timeline.lock, flags);
queue_request(engine, &request->sched, rq_prio(request));
submit_queue(engine, rq_prio(request));
@@ -1149,7 +1149,7 @@ static void execlists_submit_request(struct i915_request *request)
GEM_BUG_ON(!engine->execlists.first);
GEM_BUG_ON(list_empty(&request->sched.link));
- spin_unlock_irqrestore(&engine->timeline->lock, flags);
+ spin_unlock_irqrestore(&engine->timeline.lock, flags);
}
static struct i915_request *sched_to_request(struct i915_sched_node *node)
@@ -1165,8 +1165,8 @@ sched_lock_engine(struct i915_sched_node *node, struct intel_engine_cs *locked)
GEM_BUG_ON(!locked);
if (engine != locked) {
- spin_unlock(&locked->timeline->lock);
- spin_lock(&engine->timeline->lock);
+ spin_unlock(&locked->timeline.lock);
+ spin_lock(&engine->timeline.lock);
}
return engine;
@@ -1249,7 +1249,7 @@ static void execlists_schedule(struct i915_request *request,
}
engine = request->engine;
- spin_lock_irq(&engine->timeline->lock);
+ spin_lock_irq(&engine->timeline.lock);
/* Fifo and depth-first replacement ensure our deps execute before us */
list_for_each_entry_safe_reverse(dep, p, &dfs, dfs_link) {
@@ -1273,7 +1273,7 @@ static void execlists_schedule(struct i915_request *request,
__submit_queue(engine, prio);
}
- spin_unlock_irq(&engine->timeline->lock);
+ spin_unlock_irq(&engine->timeline.lock);
}
static int __context_pin(struct i915_gem_context *ctx, struct i915_vma *vma)
@@ -1802,9 +1802,9 @@ static void reset_common_ring(struct intel_engine_cs *engine,
reset_irq(engine);
/* Push back any incomplete requests for replay after the reset. */
- spin_lock(&engine->timeline->lock);
+ spin_lock(&engine->timeline.lock);
__unwind_incomplete_requests(engine);
- spin_unlock(&engine->timeline->lock);
+ spin_unlock(&engine->timeline.lock);
local_irq_restore(flags);
@@ -2559,6 +2559,7 @@ static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
struct i915_vma *vma;
uint32_t context_size;
struct intel_ring *ring;
+ struct i915_timeline *timeline;
int ret;
if (ce->state)
@@ -2574,8 +2575,8 @@ static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
ctx_obj = i915_gem_object_create(ctx->i915, context_size);
if (IS_ERR(ctx_obj)) {
- DRM_DEBUG_DRIVER("Alloc LRC backing obj failed.\n");
- return PTR_ERR(ctx_obj);
+ ret = PTR_ERR(ctx_obj);
+ goto error_deref_obj;
}
vma = i915_vma_instance(ctx_obj, &ctx->i915->ggtt.base, NULL);
@@ -2584,7 +2585,14 @@ static int execlists_context_deferred_alloc(struct i915_gem_context *ctx,
goto error_deref_obj;
}
- ring = intel_engine_create_ring(engine, ctx->timeline, ctx->ring_size);
+ timeline = i915_timeline_create(ctx->i915, ctx->name);
+ if (IS_ERR(timeline)) {
+ ret = PTR_ERR(timeline);
+ goto error_deref_obj;
+ }
+
+ ring = intel_engine_create_ring(engine, timeline, ctx->ring_size);
+ i915_timeline_put(timeline);
if (IS_ERR(ring)) {
ret = PTR_ERR(ring);
goto error_deref_obj;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index a4b2691dac52..c6e35af2d9d2 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -696,17 +696,17 @@ static void cancel_requests(struct intel_engine_cs *engine)
struct i915_request *request;
unsigned long flags;
- spin_lock_irqsave(&engine->timeline->lock, flags);
+ spin_lock_irqsave(&engine->timeline.lock, flags);
/* Mark all submitted requests as skipped. */
- list_for_each_entry(request, &engine->timeline->requests, link) {
+ list_for_each_entry(request, &engine->timeline.requests, link) {
GEM_BUG_ON(!request->global_seqno);
if (!i915_request_completed(request))
dma_fence_set_error(&request->fence, -EIO);
}
/* Remaining _unready_ requests will be nop'ed when submitted */
- spin_unlock_irqrestore(&engine->timeline->lock, flags);
+ spin_unlock_irqrestore(&engine->timeline.lock, flags);
}
static void i9xx_submit_request(struct i915_request *request)
@@ -1118,7 +1118,7 @@ intel_ring_create_vma(struct drm_i915_private *dev_priv, int size)
struct intel_ring *
intel_engine_create_ring(struct intel_engine_cs *engine,
- struct i915_gem_timeline *timeline,
+ struct i915_timeline *timeline,
int size)
{
struct intel_ring *ring;
@@ -1133,7 +1133,7 @@ intel_engine_create_ring(struct intel_engine_cs *engine,
return ERR_PTR(-ENOMEM);
INIT_LIST_HEAD(&ring->request_list);
- ring->timeline = &timeline->engine[engine->id];
+ ring->timeline = i915_timeline_get(timeline);
ring->size = size;
/* Workaround an erratum on the i830 which causes a hang if
@@ -1168,6 +1168,7 @@ intel_ring_free(struct intel_ring *ring)
list_del(&ring->link);
+ i915_timeline_put(ring->timeline);
kfree(ring);
}
@@ -1326,6 +1327,7 @@ static void intel_ring_context_unpin(struct intel_engine_cs *engine,
static int intel_init_ring_buffer(struct intel_engine_cs *engine)
{
struct intel_ring *ring;
+ struct i915_timeline *timeline;
int err;
intel_engine_setup_common(engine);
@@ -1334,9 +1336,14 @@ static int intel_init_ring_buffer(struct intel_engine_cs *engine)
if (err)
goto err;
- ring = intel_engine_create_ring(engine,
- &engine->i915->gt.legacy_timeline,
- 32 * PAGE_SIZE);
+ timeline = i915_timeline_create(engine->i915, engine->name);
+ if (IS_ERR(timeline)) {
+ err = PTR_ERR(timeline);
+ goto err;
+ }
+
+ ring = intel_engine_create_ring(engine, timeline, 32 * PAGE_SIZE);
+ i915_timeline_put(timeline);
if (IS_ERR(ring)) {
err = PTR_ERR(ring);
goto err;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 3debe7172dff..5f6960380c5b 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -5,12 +5,12 @@
#include <linux/hashtable.h>
#include "i915_gem_batch_pool.h"
-#include "i915_gem_timeline.h"
#include "i915_reg.h"
#include "i915_pmu.h"
#include "i915_request.h"
#include "i915_selftest.h"
+#include "i915_timeline.h"
#include "intel_gpu_commands.h"
struct drm_printer;
@@ -128,7 +128,7 @@ struct intel_ring {
struct i915_vma *vma;
void *vaddr;
- struct intel_timeline *timeline;
+ struct i915_timeline *timeline;
struct list_head request_list;
struct list_head link;
@@ -337,7 +337,8 @@ struct intel_engine_cs {
u32 mmio_base;
struct intel_ring *buffer;
- struct intel_timeline *timeline;
+
+ struct i915_timeline timeline;
struct drm_i915_gem_object *default_state;
@@ -769,7 +770,7 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value)
struct intel_ring *
intel_engine_create_ring(struct intel_engine_cs *engine,
- struct i915_gem_timeline *timeline,
+ struct i915_timeline *timeline,
int size);
int intel_ring_pin(struct intel_ring *ring,
struct drm_i915_private *i915,
@@ -888,7 +889,7 @@ static inline u32 intel_engine_last_submit(struct intel_engine_cs *engine)
* wtih serialising this hint with anything, so document it as
* a hint and nothing more.
*/
- return READ_ONCE(engine->timeline->seqno);
+ return READ_ONCE(engine->timeline.seqno);
}
void intel_engine_get_instdone(struct intel_engine_cs *engine,
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_timeline.c b/drivers/gpu/drm/i915/selftests/i915_timeline.c
similarity index 70%
rename from drivers/gpu/drm/i915/selftests/i915_gem_timeline.c
rename to drivers/gpu/drm/i915/selftests/i915_timeline.c
index 3000e6a7d82d..19f1c6a5c8fb 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_timeline.c
+++ b/drivers/gpu/drm/i915/selftests/i915_timeline.c
@@ -1,25 +1,7 @@
/*
- * Copyright © 2017 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
+ * SPDX-License-Identifier: MIT
*
+ * Copyright © 2017-2018 Intel Corporation
*/
#include "../i915_selftest.h"
@@ -35,21 +17,21 @@ struct __igt_sync {
bool set;
};
-static int __igt_sync(struct intel_timeline *tl,
+static int __igt_sync(struct i915_timeline *tl,
u64 ctx,
const struct __igt_sync *p,
const char *name)
{
int ret;
- if (__intel_timeline_sync_is_later(tl, ctx, p->seqno) != p->expected) {
+ if (__i915_timeline_sync_is_later(tl, ctx, p->seqno) != p->expected) {
pr_err("%s: %s(ctx=%llu, seqno=%u) expected passed %s but failed\n",
name, p->name, ctx, p->seqno, yesno(p->expected));
return -EINVAL;
}
if (p->set) {
- ret = __intel_timeline_sync_set(tl, ctx, p->seqno);
+ ret = __i915_timeline_sync_set(tl, ctx, p->seqno);
if (ret)
return ret;
}
@@ -77,37 +59,31 @@ static int igt_sync(void *arg)
{ "unwrap", UINT_MAX, true, false },
{},
}, *p;
- struct intel_timeline *tl;
+ struct i915_timeline tl;
int order, offset;
int ret = -ENODEV;
- tl = mock_timeline(0);
- if (!tl)
- return -ENOMEM;
-
+ mock_timeline_init(&tl, 0);
for (p = pass; p->name; p++) {
for (order = 1; order < 64; order++) {
for (offset = -1; offset <= (order > 1); offset++) {
u64 ctx = BIT_ULL(order) + offset;
- ret = __igt_sync(tl, ctx, p, "1");
+ ret = __igt_sync(&tl, ctx, p, "1");
if (ret)
goto out;
}
}
}
- mock_timeline_destroy(tl);
-
- tl = mock_timeline(0);
- if (!tl)
- return -ENOMEM;
+ mock_timeline_fini(&tl);
+ mock_timeline_init(&tl, 0);
for (order = 1; order < 64; order++) {
for (offset = -1; offset <= (order > 1); offset++) {
u64 ctx = BIT_ULL(order) + offset;
for (p = pass; p->name; p++) {
- ret = __igt_sync(tl, ctx, p, "2");
+ ret = __igt_sync(&tl, ctx, p, "2");
if (ret)
goto out;
}
@@ -115,7 +91,7 @@ static int igt_sync(void *arg)
}
out:
- mock_timeline_destroy(tl);
+ mock_timeline_fini(&tl);
return ret;
}
@@ -127,15 +103,13 @@ static unsigned int random_engine(struct rnd_state *rnd)
static int bench_sync(void *arg)
{
struct rnd_state prng;
- struct intel_timeline *tl;
+ struct i915_timeline tl;
unsigned long end_time, count;
u64 prng32_1M;
ktime_t kt;
int order, last_order;
- tl = mock_timeline(0);
- if (!tl)
- return -ENOMEM;
+ mock_timeline_init(&tl, 0);
/* Lookups from cache are very fast and so the random number generation
* and the loop itself becomes a significant factor in the per-iteration
@@ -167,7 +141,7 @@ static int bench_sync(void *arg)
do {
u64 id = i915_prandom_u64_state(&prng);
- __intel_timeline_sync_set(tl, id, 0);
+ __i915_timeline_sync_set(&tl, id, 0);
count++;
} while (!time_after(jiffies, end_time));
kt = ktime_sub(ktime_get(), kt);
@@ -182,8 +156,8 @@ static int bench_sync(void *arg)
while (end_time--) {
u64 id = i915_prandom_u64_state(&prng);
- if (!__intel_timeline_sync_is_later(tl, id, 0)) {
- mock_timeline_destroy(tl);
+ if (!__i915_timeline_sync_is_later(&tl, id, 0)) {
+ mock_timeline_fini(&tl);
pr_err("Lookup of %llu failed\n", id);
return -EINVAL;
}
@@ -193,19 +167,17 @@ static int bench_sync(void *arg)
pr_info("%s: %lu random lookups, %lluns/lookup\n",
__func__, count, (long long)div64_ul(ktime_to_ns(kt), count));
- mock_timeline_destroy(tl);
+ mock_timeline_fini(&tl);
cond_resched();
- tl = mock_timeline(0);
- if (!tl)
- return -ENOMEM;
+ mock_timeline_init(&tl, 0);
/* Benchmark setting the first N (in order) contexts */
count = 0;
kt = ktime_get();
end_time = jiffies + HZ/10;
do {
- __intel_timeline_sync_set(tl, count++, 0);
+ __i915_timeline_sync_set(&tl, count++, 0);
} while (!time_after(jiffies, end_time));
kt = ktime_sub(ktime_get(), kt);
pr_info("%s: %lu in-order insertions, %lluns/insert\n",
@@ -215,9 +187,9 @@ static int bench_sync(void *arg)
end_time = count;
kt = ktime_get();
while (end_time--) {
- if (!__intel_timeline_sync_is_later(tl, end_time, 0)) {
+ if (!__i915_timeline_sync_is_later(&tl, end_time, 0)) {
pr_err("Lookup of %lu failed\n", end_time);
- mock_timeline_destroy(tl);
+ mock_timeline_fini(&tl);
return -EINVAL;
}
}
@@ -225,12 +197,10 @@ static int bench_sync(void *arg)
pr_info("%s: %lu in-order lookups, %lluns/lookup\n",
__func__, count, (long long)div64_ul(ktime_to_ns(kt), count));
- mock_timeline_destroy(tl);
+ mock_timeline_fini(&tl);
cond_resched();
- tl = mock_timeline(0);
- if (!tl)
- return -ENOMEM;
+ mock_timeline_init(&tl, 0);
/* Benchmark searching for a random context id and maybe changing it */
prandom_seed_state(&prng, i915_selftest.random_seed);
@@ -241,8 +211,8 @@ static int bench_sync(void *arg)
u32 id = random_engine(&prng);
u32 seqno = prandom_u32_state(&prng);
- if (!__intel_timeline_sync_is_later(tl, id, seqno))
- __intel_timeline_sync_set(tl, id, seqno);
+ if (!__i915_timeline_sync_is_later(&tl, id, seqno))
+ __i915_timeline_sync_set(&tl, id, seqno);
count++;
} while (!time_after(jiffies, end_time));
@@ -250,7 +220,7 @@ static int bench_sync(void *arg)
kt = ktime_sub_ns(kt, (count * prng32_1M * 2) >> 20);
pr_info("%s: %lu repeated insert/lookups, %lluns/op\n",
__func__, count, (long long)div64_ul(ktime_to_ns(kt), count));
- mock_timeline_destroy(tl);
+ mock_timeline_fini(&tl);
cond_resched();
/* Benchmark searching for a known context id and changing the seqno */
@@ -258,9 +228,7 @@ static int bench_sync(void *arg)
({ int tmp = last_order; last_order = order; order += tmp; })) {
unsigned int mask = BIT(order) - 1;
- tl = mock_timeline(0);
- if (!tl)
- return -ENOMEM;
+ mock_timeline_init(&tl, 0);
count = 0;
kt = ktime_get();
@@ -272,8 +240,8 @@ static int bench_sync(void *arg)
*/
u64 id = (u64)(count & mask) << order;
- __intel_timeline_sync_is_later(tl, id, 0);
- __intel_timeline_sync_set(tl, id, 0);
+ __i915_timeline_sync_is_later(&tl, id, 0);
+ __i915_timeline_sync_set(&tl, id, 0);
count++;
} while (!time_after(jiffies, end_time));
@@ -281,7 +249,7 @@ static int bench_sync(void *arg)
pr_info("%s: %lu cyclic/%d insert/lookups, %lluns/op\n",
__func__, count, order,
(long long)div64_ul(ktime_to_ns(kt), count));
- mock_timeline_destroy(tl);
+ mock_timeline_fini(&tl);
cond_resched();
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_engine.c b/drivers/gpu/drm/i915/selftests/mock_engine.c
index e10b4563f6d0..edb6153733c5 100644
--- a/drivers/gpu/drm/i915/selftests/mock_engine.c
+++ b/drivers/gpu/drm/i915/selftests/mock_engine.c
@@ -25,6 +25,11 @@
#include "mock_engine.h"
#include "mock_request.h"
+struct mock_ring {
+ struct intel_ring base;
+ struct i915_timeline timeline;
+};
+
static struct mock_request *first_request(struct mock_engine *engine)
{
return list_first_entry_or_null(&engine->hw_queue,
@@ -125,7 +130,7 @@ static void mock_submit_request(struct i915_request *request)
static struct intel_ring *mock_ring(struct intel_engine_cs *engine)
{
const unsigned long sz = PAGE_SIZE / 2;
- struct intel_ring *ring;
+ struct mock_ring *ring;
BUILD_BUG_ON(MIN_SPACE_FOR_ADD_REQUEST > sz);
@@ -133,21 +138,27 @@ static struct intel_ring *mock_ring(struct intel_engine_cs *engine)
if (!ring)
return NULL;
- ring->size = sz;
- ring->effective_size = sz;
- ring->vaddr = (void *)(ring + 1);
+ i915_timeline_init(engine->i915, &ring->timeline, engine->name);
+
+ ring->base.size = sz;
+ ring->base.effective_size = sz;
+ ring->base.vaddr = (void *)(ring + 1);
+ ring->base.timeline = &ring->timeline;
- INIT_LIST_HEAD(&ring->request_list);
- intel_ring_update_space(ring);
+ INIT_LIST_HEAD(&ring->base.request_list);
+ intel_ring_update_space(&ring->base);
- list_add(&ring->link, &engine->i915->gt.rings);
+ list_add(&ring->base.link, &engine->i915->gt.rings);
- return ring;
+ return &ring->base;
}
-static void mock_ring_free(struct intel_ring *ring)
+static void mock_ring_free(struct intel_ring *base)
{
- list_del(&ring->link);
+ struct mock_ring *ring = container_of(base, typeof(*ring), base);
+
+ i915_timeline_fini(&ring->timeline);
+ list_del(&ring->base.link);
kfree(ring);
}
@@ -177,8 +188,7 @@ struct intel_engine_cs *mock_engine(struct drm_i915_private *i915,
engine->base.emit_breadcrumb = mock_emit_breadcrumb;
engine->base.submit_request = mock_submit_request;
- intel_engine_init_timeline(&engine->base);
-
+ i915_timeline_init(i915, &engine->base.timeline, engine->base.name);
intel_engine_init_breadcrumbs(&engine->base);
engine->base.breadcrumbs.mock = true; /* prevent touching HW for irqs */
@@ -195,6 +205,7 @@ struct intel_engine_cs *mock_engine(struct drm_i915_private *i915,
err_breadcrumbs:
intel_engine_fini_breadcrumbs(&engine->base);
+ i915_timeline_fini(&engine->base.timeline);
kfree(engine);
return NULL;
}
@@ -233,6 +244,7 @@ void mock_engine_free(struct intel_engine_cs *engine)
mock_ring_free(engine->buffer);
intel_engine_fini_breadcrumbs(engine);
+ i915_timeline_fini(&engine->timeline);
kfree(engine);
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 8da283a72257..c137225ffae0 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -73,10 +73,8 @@ static void mock_device_release(struct drm_device *dev)
mutex_lock(&i915->drm.struct_mutex);
mock_fini_ggtt(i915);
- i915_gem_timeline_fini(&i915->gt.legacy_timeline);
- i915_gem_timeline_fini(&i915->gt.execution_timeline);
- WARN_ON(!list_empty(&i915->gt.timelines));
mutex_unlock(&i915->drm.struct_mutex);
+ WARN_ON(!list_empty(&i915->gt.timelines));
destroy_workqueue(i915->wq);
@@ -226,15 +224,10 @@ struct drm_i915_private *mock_gem_device(void)
if (!i915->priorities)
goto err_dependencies;
- mutex_lock(&i915->drm.struct_mutex);
INIT_LIST_HEAD(&i915->gt.rings);
INIT_LIST_HEAD(&i915->gt.timelines);
- err = i915_gem_timeline_init__global(i915);
- if (err) {
- mutex_unlock(&i915->drm.struct_mutex);
- goto err_priorities;
- }
+ mutex_lock(&i915->drm.struct_mutex);
mock_init_ggtt(i915);
mutex_unlock(&i915->drm.struct_mutex);
diff --git a/drivers/gpu/drm/i915/selftests/mock_timeline.c b/drivers/gpu/drm/i915/selftests/mock_timeline.c
index 47b1f47c5812..dcf3b16f5a07 100644
--- a/drivers/gpu/drm/i915/selftests/mock_timeline.c
+++ b/drivers/gpu/drm/i915/selftests/mock_timeline.c
@@ -1,45 +1,28 @@
/*
- * Copyright © 2017 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
+ * SPDX-License-Identifier: MIT
*
+ * Copyright © 2017-2018 Intel Corporation
*/
+#include "../i915_timeline.h"
+
#include "mock_timeline.h"
-struct intel_timeline *mock_timeline(u64 context)
+void mock_timeline_init(struct i915_timeline *timeline, u64 context)
{
- static struct lock_class_key class;
- struct intel_timeline *tl;
+ timeline->fence_context = context;
+
+ spin_lock_init(&timeline->lock);
- tl = kzalloc(sizeof(*tl), GFP_KERNEL);
- if (!tl)
- return NULL;
+ init_request_active(&timeline->last_request, NULL);
+ INIT_LIST_HEAD(&timeline->requests);
- __intel_timeline_init(tl, NULL, context, &class, "mock");
+ i915_syncmap_init(&timeline->sync);
- return tl;
+ INIT_LIST_HEAD(&timeline->link);
}
-void mock_timeline_destroy(struct intel_timeline *tl)
+void mock_timeline_fini(struct i915_timeline *timeline)
{
- __intel_timeline_fini(tl);
- kfree(tl);
+ i915_timeline_fini(timeline);
}
diff --git a/drivers/gpu/drm/i915/selftests/mock_timeline.h b/drivers/gpu/drm/i915/selftests/mock_timeline.h
index c27ff4639b8b..b6deaa61110d 100644
--- a/drivers/gpu/drm/i915/selftests/mock_timeline.h
+++ b/drivers/gpu/drm/i915/selftests/mock_timeline.h
@@ -1,33 +1,15 @@
/*
- * Copyright © 2017 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
+ * SPDX-License-Identifier: MIT
*
+ * Copyright © 2017-2018 Intel Corporation
*/
#ifndef __MOCK_TIMELINE__
#define __MOCK_TIMELINE__
-#include "../i915_gem_timeline.h"
+struct i915_timeline;
-struct intel_timeline *mock_timeline(u64 context);
-void mock_timeline_destroy(struct intel_timeline *tl);
+void mock_timeline_init(struct i915_timeline *timeline, u64 context);
+void mock_timeline_fini(struct i915_timeline *timeline);
#endif /* !__MOCK_TIMELINE__ */
--
2.17.0
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