From 2dfcc7f4e91ff853beab44ce62eeb1163a220e2f Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Wed, 27 Jan 2021 13:14:10 +0000
Subject: drm/i915: make local-memory probing a GT operation
Device local memory is very much a GT thing, therefore it should be the
responsibility of the GT to setup the device local memory region.
Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210127131417.393872-1-matthew.auld@intel.com
[danvet: Rebase conflict.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/gt/intel_gt.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
(limited to 'drivers/gpu/drm/i915/gt/intel_gt.c')
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index d8e1ab412634..edbee9991248 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -39,6 +39,38 @@ void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
intel_uc_init_early(>->uc);
}
+int intel_gt_probe_lmem(struct intel_gt *gt)
+{
+ struct drm_i915_private *i915 = gt->i915;
+ struct intel_memory_region *mem;
+ int id;
+ int err;
+
+ mem = intel_gt_setup_fake_lmem(gt);
+ if (IS_ERR(mem)) {
+ err = PTR_ERR(mem);
+ if (err == -ENODEV)
+ return 0;
+
+ drm_err(&i915->drm,
+ "Failed to setup region(%d) type=%d\n",
+ err, INTEL_MEMORY_LOCAL);
+ return err;
+ }
+
+ id = INTEL_REGION_LMEM;
+
+ mem->id = id;
+ mem->type = INTEL_MEMORY_LOCAL;
+ mem->instance = 0;
+
+ GEM_BUG_ON(!HAS_REGION(i915, id));
+ GEM_BUG_ON(i915->mm.regions[id]);
+ i915->mm.regions[id] = mem;
+
+ return 0;
+}
+
void intel_gt_init_hw_early(struct intel_gt *gt, struct i915_ggtt *ggtt)
{
gt->ggtt = ggtt;
--
cgit v1.2.3-70-g09d2
From a50ca39fbd018889dc48f9bf17ca924546645dbc Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Wed, 27 Jan 2021 13:14:11 +0000
Subject: drm/i915: setup the LMEM region
Hook up the LMEM region. Addresses will start from zero, and for CPU
access we get LMEM_BAR which is just a 1:1 mapping of said region.
Based on a patch from Michel Thierry.
v2 by Jani:
- use intel_uncore_read/intel_uncore_write
- remove trailing blank line
v3: s/drm_info/drm_dbg for info which in non-pertinent for the user
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210127131417.393872-2-matthew.auld@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/gt/intel_gt.c | 4 +++-
drivers/gpu/drm/i915/gt/intel_region_lmem.c | 36 +++++++++++++++++++++++++++++
drivers/gpu/drm/i915/gt/intel_region_lmem.h | 2 ++
3 files changed, 41 insertions(+), 1 deletion(-)
(limited to 'drivers/gpu/drm/i915/gt/intel_gt.c')
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index edbee9991248..9ac67e0534b7 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -46,7 +46,9 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
int id;
int err;
- mem = intel_gt_setup_fake_lmem(gt);
+ mem = intel_gt_setup_lmem(gt);
+ if (mem == ERR_PTR(-ENODEV))
+ mem = intel_gt_setup_fake_lmem(gt);
if (IS_ERR(mem)) {
err = PTR_ERR(mem);
if (err == -ENODEV)
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
index 86f5dca37ef3..d74e22313e88 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
@@ -142,3 +142,39 @@ intel_gt_setup_fake_lmem(struct intel_gt *gt)
return mem;
}
+
+static struct intel_memory_region *setup_lmem(struct intel_gt *gt)
+{
+ struct drm_i915_private *i915 = gt->i915;
+ struct pci_dev *pdev = i915->drm.pdev;
+ struct intel_memory_region *mem;
+ resource_size_t io_start;
+ resource_size_t size;
+
+ if (!IS_DGFX(i915))
+ return ERR_PTR(-ENODEV);
+
+ io_start = pci_resource_start(pdev, 2);
+ size = pci_resource_len(pdev, 2);
+
+ mem = intel_memory_region_create(i915,
+ 0,
+ size,
+ I915_GTT_PAGE_SIZE_4K,
+ io_start,
+ &intel_region_lmem_ops);
+ if (IS_ERR(mem))
+ return mem;
+
+ drm_dbg(&i915->drm, "Local memory: %pR\n", &mem->region);
+ drm_dbg(&i915->drm, "Local memory IO start: %pa\n",
+ &mem->io_start);
+ drm_info(&i915->drm, "Local memory available: %pa\n", &size);
+
+ return mem;
+}
+
+struct intel_memory_region *intel_gt_setup_lmem(struct intel_gt *gt)
+{
+ return setup_lmem(gt);
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.h b/drivers/gpu/drm/i915/gt/intel_region_lmem.h
index a4baa0f077a1..062d0542ae34 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.h
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.h
@@ -8,6 +8,8 @@
struct intel_gt;
+struct intel_memory_region *intel_gt_setup_lmem(struct intel_gt *gt);
+
struct intel_memory_region *
intel_gt_setup_fake_lmem(struct intel_gt *gt);
--
cgit v1.2.3-70-g09d2
From 772d5bdf2ba7ce390b685c0a5934cf524854ecbc Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Wed, 27 Jan 2021 13:14:16 +0000
Subject: drm/i915: move engine scratch to LMEM
Prefer allocating the engine scratch from LMEM on dgfx.
v2: flatten the chain
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210127131417.393872-7-matthew.auld@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/gt/intel_gt.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
(limited to 'drivers/gpu/drm/i915/gt/intel_gt.c')
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 9ac67e0534b7..35ff68ada4f1 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -4,6 +4,8 @@
*/
#include "debugfs_gt.h"
+
+#include "gem/i915_gem_lmem.h"
#include "i915_drv.h"
#include "intel_context.h"
#include "intel_gt.h"
@@ -378,11 +380,13 @@ static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
struct i915_vma *vma;
int ret;
- obj = i915_gem_object_create_stolen(i915, size);
+ obj = i915_gem_object_create_lmem(i915, size, I915_BO_ALLOC_VOLATILE);
+ if (IS_ERR(obj))
+ obj = i915_gem_object_create_stolen(i915, size);
if (IS_ERR(obj))
obj = i915_gem_object_create_internal(i915, size);
if (IS_ERR(obj)) {
- DRM_ERROR("Failed to allocate scratch page\n");
+ drm_err(&i915->drm, "Failed to allocate scratch page\n");
return PTR_ERR(obj);
}
--
cgit v1.2.3-70-g09d2
From c538d54e49d8890e9df987c35919ea6a5f963dc9 Mon Sep 17 00:00:00 2001
From: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Date: Wed, 3 Feb 2021 17:12:29 +0000
Subject: drm/i915: Distinction of memory regions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In preparation for Xe HP multi-tile architecture with multiple memory
regions, we need to be able differentiate multiple instances of device
local-memory.
Note that the region name is just to give it a human friendly
identifier, instead of using class/instance which also uniquely
identifies the region. So far the region name is only for our own
internal debugging in the kernel(like in the selftests), or debugfs
which prints the list of regions, including the regions name.
v2: add commentary for our current region name use
Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210203171231.551338-1-matthew.auld@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/gt/intel_gt.c | 2 ++
drivers/gpu/drm/i915/gt/intel_region_lmem.c | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'drivers/gpu/drm/i915/gt/intel_gt.c')
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 35ff68ada4f1..ca76f93bc03d 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -68,6 +68,8 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
mem->type = INTEL_MEMORY_LOCAL;
mem->instance = 0;
+ intel_memory_region_set_name(mem, "local%u", mem->instance);
+
GEM_BUG_ON(!HAS_REGION(i915, id));
GEM_BUG_ON(i915->mm.regions[id]);
i915->mm.regions[id] = mem;
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
index 8c498e96b01d..be6f2c8f5184 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
@@ -90,8 +90,6 @@ region_lmem_init(struct intel_memory_region *mem)
if (ret)
io_mapping_fini(&mem->iomap);
- intel_memory_region_set_name(mem, "local");
-
return ret;
}
--
cgit v1.2.3-70-g09d2
From 9b4d0598ee940df33ea6cbbba8c80e951223131b Mon Sep 17 00:00:00 2001
From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date: Wed, 24 Mar 2021 12:13:33 +0000
Subject: drm/i915: Request watchdog infrastructure
Prepares the plumbing for setting request/fence expiration time. All code
is put in place but is never activated due yet missing ability to actually
configure the timer.
Outline of the basic operation:
A timer is started when request is ready for execution. If the request
completes (retires) before the timer fires, timer is cancelled and nothing
further happens.
If the timer fires request is added to a lockless list and worker queued.
Purpose of this is twofold: a) It allows request cancellation from a more
friendly context and b) coalesces multiple expirations into a single event
of consuming the list.
Worker locklessly consumes the list of expired requests and cancels them
all using previous added i915_request_cancel().
Associated timeout value is stored in rq->context.watchdog.timeout_us.
v2:
* Log expiration.
v3:
* Include more information about user timeline in the log message.
v4:
* Remove obsolete comment and fix formatting. (Matt)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210324121335.2307063-6-tvrtko.ursulin@linux.intel.com
---
drivers/gpu/drm/i915/gt/intel_context_types.h | 4 ++
.../gpu/drm/i915/gt/intel_execlists_submission.h | 2 +
drivers/gpu/drm/i915/gt/intel_gt.c | 3 ++
drivers/gpu/drm/i915/gt/intel_gt.h | 2 +
drivers/gpu/drm/i915/gt/intel_gt_requests.c | 28 ++++++++++++
drivers/gpu/drm/i915/gt/intel_gt_types.h | 7 +++
drivers/gpu/drm/i915/i915_request.c | 52 ++++++++++++++++++++++
drivers/gpu/drm/i915/i915_request.h | 8 ++++
8 files changed, 106 insertions(+)
(limited to 'drivers/gpu/drm/i915/gt/intel_gt.c')
diff --git a/drivers/gpu/drm/i915/gt/intel_context_types.h b/drivers/gpu/drm/i915/gt/intel_context_types.h
index e10d78601bbd..b457d6c49325 100644
--- a/drivers/gpu/drm/i915/gt/intel_context_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_context_types.h
@@ -97,6 +97,10 @@ struct intel_context {
#define CONTEXT_FORCE_SINGLE_SUBMISSION 7
#define CONTEXT_NOPREEMPT 8
+ struct {
+ u64 timeout_us;
+ } watchdog;
+
u32 *lrc_reg_state;
union {
struct {
diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.h b/drivers/gpu/drm/i915/gt/intel_execlists_submission.h
index a8fd7adefd82..fd61dae820e9 100644
--- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.h
+++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.h
@@ -6,6 +6,7 @@
#ifndef __INTEL_EXECLISTS_SUBMISSION_H__
#define __INTEL_EXECLISTS_SUBMISSION_H__
+#include <linux/llist.h>
#include <linux/types.h>
struct drm_printer;
@@ -13,6 +14,7 @@ struct drm_printer;
struct i915_request;
struct intel_context;
struct intel_engine_cs;
+struct intel_gt;
enum {
INTEL_CONTEXT_SCHEDULE_IN = 0,
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index d8e1ab412634..ff63034cff9c 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -29,6 +29,9 @@ void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
INIT_LIST_HEAD(>->closed_vma);
spin_lock_init(>->closed_lock);
+ init_llist_head(>->watchdog.list);
+ INIT_WORK(>->watchdog.work, intel_gt_watchdog_work);
+
intel_gt_init_buffer_pool(gt);
intel_gt_init_reset(gt);
intel_gt_init_requests(gt);
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index 9157c7411f60..35d3bb13372f 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -77,4 +77,6 @@ static inline bool intel_gt_is_wedged(const struct intel_gt *gt)
void intel_gt_info_print(const struct intel_gt_info *info,
struct drm_printer *p);
+void intel_gt_watchdog_work(struct work_struct *work);
+
#endif /* __INTEL_GT_H__ */
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_requests.c b/drivers/gpu/drm/i915/gt/intel_gt_requests.c
index dc06c78c9eeb..f7e5ce2e2291 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_requests.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_requests.c
@@ -9,6 +9,7 @@
#include "i915_drv.h" /* for_each_engine() */
#include "i915_request.h"
#include "intel_engine_heartbeat.h"
+#include "intel_execlists_submission.h"
#include "intel_gt.h"
#include "intel_gt_pm.h"
#include "intel_gt_requests.h"
@@ -243,4 +244,31 @@ void intel_gt_fini_requests(struct intel_gt *gt)
{
/* Wait until the work is marked as finished before unloading! */
cancel_delayed_work_sync(>->requests.retire_work);
+
+ flush_work(>->watchdog.work);
+}
+
+void intel_gt_watchdog_work(struct work_struct *work)
+{
+ struct intel_gt *gt =
+ container_of(work, typeof(*gt), watchdog.work);
+ struct i915_request *rq, *rn;
+ struct llist_node *first;
+
+ first = llist_del_all(>->watchdog.list);
+ if (!first)
+ return;
+
+ llist_for_each_entry_safe(rq, rn, first, watchdog.link) {
+ if (!i915_request_completed(rq)) {
+ struct dma_fence *f = &rq->fence;
+
+ pr_notice("Fence expiration time out i915-%s:%s:%llx!\n",
+ f->ops->get_driver_name(f),
+ f->ops->get_timeline_name(f),
+ f->seqno);
+ i915_request_cancel(rq, -EINTR);
+ }
+ i915_request_put(rq);
+ }
}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index f7dab4fc926c..0caf6ca0a784 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -8,10 +8,12 @@
#include <linux/ktime.h>
#include <linux/list.h>
+#include <linux/llist.h>
#include <linux/mutex.h>
#include <linux/notifier.h>
#include <linux/spinlock.h>
#include <linux/types.h>
+#include <linux/workqueue.h>
#include "uc/intel_uc.h"
@@ -52,6 +54,11 @@ struct intel_gt {
struct delayed_work retire_work;
} requests;
+ struct {
+ struct llist_head list;
+ struct work_struct work;
+ } watchdog;
+
struct intel_wakeref wakeref;
atomic_t user_wakeref;
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index a031b86f8508..63968d163c14 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -321,6 +321,53 @@ static void remove_from_engine(struct i915_request *rq)
__notify_execute_cb_imm(rq);
}
+static void __rq_init_watchdog(struct i915_request *rq)
+{
+ rq->watchdog.timer.function = NULL;
+}
+
+static enum hrtimer_restart __rq_watchdog_expired(struct hrtimer *hrtimer)
+{
+ struct i915_request *rq =
+ container_of(hrtimer, struct i915_request, watchdog.timer);
+ struct intel_gt *gt = rq->engine->gt;
+
+ if (!i915_request_completed(rq)) {
+ if (llist_add(&rq->watchdog.link, >->watchdog.list))
+ schedule_work(>->watchdog.work);
+ } else {
+ i915_request_put(rq);
+ }
+
+ return HRTIMER_NORESTART;
+}
+
+static void __rq_arm_watchdog(struct i915_request *rq)
+{
+ struct i915_request_watchdog *wdg = &rq->watchdog;
+ struct intel_context *ce = rq->context;
+
+ if (!ce->watchdog.timeout_us)
+ return;
+
+ hrtimer_init(&wdg->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+ wdg->timer.function = __rq_watchdog_expired;
+ hrtimer_start_range_ns(&wdg->timer,
+ ns_to_ktime(ce->watchdog.timeout_us *
+ NSEC_PER_USEC),
+ NSEC_PER_MSEC,
+ HRTIMER_MODE_REL);
+ i915_request_get(rq);
+}
+
+static void __rq_cancel_watchdog(struct i915_request *rq)
+{
+ struct i915_request_watchdog *wdg = &rq->watchdog;
+
+ if (wdg->timer.function && hrtimer_try_to_cancel(&wdg->timer) > 0)
+ i915_request_put(rq);
+}
+
bool i915_request_retire(struct i915_request *rq)
{
if (!__i915_request_is_complete(rq))
@@ -332,6 +379,8 @@ bool i915_request_retire(struct i915_request *rq)
trace_i915_request_retire(rq);
i915_request_mark_complete(rq);
+ __rq_cancel_watchdog(rq);
+
/*
* We know the GPU must have read the request to have
* sent us the seqno + interrupt, so use the position
@@ -761,6 +810,8 @@ submit_notify(struct i915_sw_fence *fence, enum i915_sw_fence_notify state)
if (unlikely(fence->error))
i915_request_set_error_once(request, fence->error);
+ else
+ __rq_arm_watchdog(request);
/*
* We need to serialize use of the submit_request() callback
@@ -947,6 +998,7 @@ __i915_request_create(struct intel_context *ce, gfp_t gfp)
/* No zalloc, everything must be cleared after use */
rq->batch = NULL;
+ __rq_init_watchdog(rq);
GEM_BUG_ON(rq->capture_list);
GEM_BUG_ON(!llist_empty(&rq->execute_cb));
diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index e4d190ab76b2..36071d3d383d 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -26,7 +26,9 @@
#define I915_REQUEST_H
#include <linux/dma-fence.h>
+#include <linux/hrtimer.h>
#include <linux/irq_work.h>
+#include <linux/llist.h>
#include <linux/lockdep.h>
#include "gem/i915_gem_context_types.h"
@@ -277,6 +279,12 @@ struct i915_request {
/** timeline->request entry for this request */
struct list_head link;
+ /** Watchdog support fields. */
+ struct i915_request_watchdog {
+ struct llist_node link;
+ struct hrtimer timer;
+ } watchdog;
+
I915_SELFTEST_DECLARE(struct {
struct list_head link;
unsigned long delay;
--
cgit v1.2.3-70-g09d2