Merge tag 'drm-intel-gt-next-2021-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Driver Changes:

- Added bits of DG2 support around page table handling (Stuart Summers, Matthew Auld)
- Fixed wakeref leak in PMU busyness during reset in GuC mode (Umesh Nerlige Ramappa)
- Fixed debugfs access crash if GuC failed to load (John Harrison)
- Bring back GuC error log to error capture, undoing accidental earlier breakage (Thomas Hellström)
- Fixed memory leak in error capture caused by earlier refactoring (Thomas Hellström)
- Exclude reserved stolen from driver use (Chris Wilson)
- Add memory region sanity checking and optional full test (Chris Wilson)
- Fixed buffer size truncation in TTM shmemfs backend (Robert Beckett)
- Use correct lock and don't overwrite internal data structures when stealing GuC context ids (Matthew Brost)
- Don't hog IRQs when destroying GuC contexts (John Harrison)
- Make GuC to Host communication more robust (Matthew Brost)
- Continuation of locking refactoring around VMA and backing store handling (Maarten Lankhorst)
- Improve performance of reading GuC log from debugfs (John Harrison)
- Log when GuC fails to reset an engine (John Harrison)
- Speed up GuC/HuC firmware loading by requesting RP0 (Vinay Belgaumkar)
- Further work on asynchronous VMA unbinding (Thomas Hellström, Christian König)

- Refactor GuC/HuC firmware handling to prepare for future platforms (John Harrison)
- Prepare for future different GuC/HuC firmware signing key sizes (Daniele Ceraolo Spurio, Michal Wajdeczko)
- Add noreclaim annotations (Matthew Auld)
- Remove racey GEM_BUG_ON between GPU reset and GuC communication handling (Matthew Brost)
- Refactor i915->gt with to_gt(i915) to prepare for future platforms (Michał Winiarski, Andi Shyti)
- Increase GuC log size for CONFIG_DEBUG_GEM (John Harrison)

- Fixed engine busyness in selftests when in GuC mode (Umesh Nerlige Ramappa)
- Make engine parking work with PREEMPT_RT (Sebastian Andrzej Siewior)
- Replace X86_FEATURE_PAT with pat_enabled() (Lucas De Marchi)
- Selftest for stealing of guc ids (Matthew Brost)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YcRvKO5cyPvIxVCi@tursulin-mobl2

1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index ad175d662b4e..76cf5ac91e94 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -42,6 +42,7 @@
 #include "gt/intel_rps.h"
 
 #include "i915_active.h"
+#include "i915_deps.h"
 #include "i915_drv.h"
 #include "i915_trace.h"
 #include "intel_pm.h"
@@ -308,6 +309,7 @@ void i915_request_free_capture_list(struct i915_capture_list *capture)
 		struct i915_capture_list *next = capture->next;
 
 		i915_vma_snapshot_put(capture->vma_snapshot);
+		kfree(capture);
 		capture = next;
 	}
 }
@@ -1543,6 +1545,27 @@ i915_request_await_dma_fence(struct i915_request *rq, struct dma_fence *fence)
 }
 
 /**
+ * i915_request_await_deps - set this request to (async) wait upon a struct
+ * i915_deps dma_fence collection
+ * @rq: request we are wishing to use
+ * @deps: The struct i915_deps containing the dependencies.
+ *
+ * Returns 0 if successful, negative error code on error.
+ */
+int i915_request_await_deps(struct i915_request *rq, const struct i915_deps *deps)
+{
+	int i, err;
+
+	for (i = 0; i < deps->num_deps; ++i) {
+		err = i915_request_await_dma_fence(rq, deps->fences[i]);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+/**
  * i915_request_await_object - set this request to (async) wait upon a bo
  * @to: request we are wishing to use
  * @obj: object which may be in use on another ring.