From: Matthew Brost <matthew.brost@intel.com>
To: <intel-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org>
Subject: [Intel-gfx] [PATCH 15/46] drm/i915/guc: Introduce context parent-child relationship
Date: Tue, 3 Aug 2021 15:29:12 -0700 [thread overview]
Message-ID: <20210803222943.27686-16-matthew.brost@intel.com> (raw)
In-Reply-To: <20210803222943.27686-1-matthew.brost@intel.com>
Introduce context parent-child relationship. Once this relationship is
created all pinning / unpinning operations are directed to the parent
context. The parent context is responsible for pinning all of its'
children and itself.
This is a precursor to the full GuC multi-lrc implementation but aligns
to how GuC mutli-lrc interface is defined - a single H2G is used
register / deregister all of the contexts simultaneously.
Subsequent patches in the series will implement the pinning / unpinning
operations for parent / child contexts.
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
drivers/gpu/drm/i915/gt/intel_context.c | 29 +++++++++++++++++++
drivers/gpu/drm/i915/gt/intel_context.h | 18 ++++++++++++
drivers/gpu/drm/i915/gt/intel_context_types.h | 12 ++++++++
3 files changed, 59 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/intel_context.c b/drivers/gpu/drm/i915/gt/intel_context.c
index 745e84c72c90..8cb92b10b547 100644
--- a/drivers/gpu/drm/i915/gt/intel_context.c
+++ b/drivers/gpu/drm/i915/gt/intel_context.c
@@ -395,6 +395,8 @@ intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine)
spin_lock_init(&ce->guc_state.lock);
INIT_LIST_HEAD(&ce->guc_state.fences);
+ INIT_LIST_HEAD(&ce->guc_child_list);
+
spin_lock_init(&ce->guc_active.lock);
INIT_LIST_HEAD(&ce->guc_active.requests);
@@ -414,10 +416,17 @@ intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine)
void intel_context_fini(struct intel_context *ce)
{
+ struct intel_context *child, *next;
+
if (ce->timeline)
intel_timeline_put(ce->timeline);
i915_vm_put(ce->vm);
+ /* Need to put the creation ref for the children */
+ if (intel_context_is_parent(ce))
+ for_each_child_safe(ce, child, next)
+ intel_context_put(child);
+
mutex_destroy(&ce->pin_mutex);
i915_active_fini(&ce->active);
}
@@ -533,6 +542,26 @@ struct i915_request *intel_context_find_active_request(struct intel_context *ce)
return active;
}
+void intel_context_bind_parent_child(struct intel_context *parent,
+ struct intel_context *child)
+{
+ /*
+ * Callers responsibility to validate that this function is used
+ * correctly but we use GEM_BUG_ON here ensure that they do.
+ */
+ GEM_BUG_ON(!intel_engine_uses_guc(parent->engine));
+ GEM_BUG_ON(intel_context_is_pinned(parent));
+ GEM_BUG_ON(intel_context_is_child(parent));
+ GEM_BUG_ON(intel_context_is_pinned(child));
+ GEM_BUG_ON(intel_context_is_child(child));
+ GEM_BUG_ON(intel_context_is_parent(child));
+
+ parent->guc_number_children++;
+ list_add_tail(&child->guc_child_link,
+ &parent->guc_child_list);
+ child->parent = parent;
+}
+
#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
#include "selftest_context.c"
#endif
diff --git a/drivers/gpu/drm/i915/gt/intel_context.h b/drivers/gpu/drm/i915/gt/intel_context.h
index c41098950746..ad6ce5ac4824 100644
--- a/drivers/gpu/drm/i915/gt/intel_context.h
+++ b/drivers/gpu/drm/i915/gt/intel_context.h
@@ -44,6 +44,24 @@ void intel_context_free(struct intel_context *ce);
int intel_context_reconfigure_sseu(struct intel_context *ce,
const struct intel_sseu sseu);
+static inline bool intel_context_is_child(struct intel_context *ce)
+{
+ return !!ce->parent;
+}
+
+static inline bool intel_context_is_parent(struct intel_context *ce)
+{
+ return !!ce->guc_number_children;
+}
+
+void intel_context_bind_parent_child(struct intel_context *parent,
+ struct intel_context *child);
+
+#define for_each_child(parent, ce)\
+ list_for_each_entry(ce, &(parent)->guc_child_list, guc_child_link)
+#define for_each_child_safe(parent, ce, cn)\
+ list_for_each_entry_safe(ce, cn, &(parent)->guc_child_list, guc_child_link)
+
/**
* intel_context_lock_pinned - Stablises the 'pinned' status of the HW context
* @ce - the context
diff --git a/drivers/gpu/drm/i915/gt/intel_context_types.h b/drivers/gpu/drm/i915/gt/intel_context_types.h
index 2df79ba39867..66b22b370a72 100644
--- a/drivers/gpu/drm/i915/gt/intel_context_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_context_types.h
@@ -202,6 +202,18 @@ struct intel_context {
/* GuC context blocked fence */
struct i915_sw_fence guc_blocked;
+ /* Head of children list or link in parent's children list */
+ union {
+ struct list_head guc_child_list; /* parent */
+ struct list_head guc_child_link; /* child */
+ };
+
+ /* Pointer to parent */
+ struct intel_context *parent;
+
+ /* Number of children if parent */
+ u8 guc_number_children;
+
/*
* GuC priority management
*/
--
2.28.0
next prev parent reply other threads:[~2021-08-03 22:12 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-03 22:28 [Intel-gfx] [PATCH 00/46] Parallel submission aka multi-bb execbuf Matthew Brost
2021-08-03 22:28 ` [Intel-gfx] [PATCH 01/46] drm/i915/guc: Allow flexible number of context ids Matthew Brost
2021-08-03 22:28 ` [Intel-gfx] [PATCH 02/46] drm/i915/guc: Connect the number of guc_ids to debugfs Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 03/46] drm/i915/guc: Don't return -EAGAIN to user when guc_ids exhausted Matthew Brost
2021-08-05 8:27 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 04/46] drm/i915/guc: Don't allow requests not ready to consume all guc_ids Matthew Brost
2021-08-05 8:29 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 05/46] drm/i915/guc: Introduce guc_submit_engine object Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 06/46] drm/i915/guc: Check return of __xa_store when registering a context Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 07/46] drm/i915/guc: Non-static lrc descriptor registration buffer Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 08/46] drm/i915/guc: Take GT PM ref when deregistering context Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 09/46] drm/i915: Add GT PM unpark worker Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 10/46] drm/i915/guc: Take engine PM when a context is pinned with GuC submission Matthew Brost
2021-08-09 14:23 ` Daniel Vetter
2021-08-09 18:11 ` Matthew Brost
2021-08-10 6:43 ` Daniel Vetter
2021-08-10 21:29 ` Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 11/46] drm/i915/guc: Don't call switch_to_kernel_context " Matthew Brost
2021-08-09 14:27 ` Daniel Vetter
2021-08-09 18:20 ` Matthew Brost
2021-08-10 6:47 ` Daniel Vetter
2021-08-11 17:47 ` Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 12/46] drm/i915/guc: Selftest for GuC flow control Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 13/46] drm/i915: Add logical engine mapping Matthew Brost
2021-08-09 14:28 ` Daniel Vetter
2021-08-09 18:28 ` Matthew Brost
2021-08-10 6:49 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 14/46] drm/i915: Expose logical engine instance to user Matthew Brost
2021-08-09 14:30 ` Daniel Vetter
2021-08-09 18:37 ` Matthew Brost
2021-08-10 6:53 ` Daniel Vetter
2021-08-11 17:55 ` Matthew Brost
2021-08-03 22:29 ` Matthew Brost [this message]
2021-08-09 14:37 ` [Intel-gfx] [PATCH 15/46] drm/i915/guc: Introduce context parent-child relationship Daniel Vetter
2021-08-09 14:40 ` Daniel Vetter
2021-08-09 18:45 ` Matthew Brost
2021-08-09 18:44 ` Matthew Brost
2021-08-10 8:45 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 16/46] drm/i915/guc: Implement GuC parent-child context pin / unpin functions Matthew Brost
2021-08-09 15:17 ` Daniel Vetter
2021-08-09 18:58 ` Matthew Brost
2021-08-10 8:53 ` Daniel Vetter
2021-08-10 9:07 ` Daniel Vetter
2021-08-11 18:06 ` Matthew Brost
2021-08-12 14:45 ` Daniel Vetter
2021-08-12 14:52 ` Daniel Vetter
2021-08-11 18:23 ` Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 17/46] drm/i915/guc: Add multi-lrc context registration Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 18/46] drm/i915/guc: Ensure GuC schedule operations do not operate on child contexts Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 19/46] drm/i915/guc: Assign contexts in parent-child relationship consecutive guc_ids Matthew Brost
2021-08-09 15:31 ` Daniel Vetter
2021-08-09 19:03 ` Matthew Brost
2021-08-10 9:12 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 20/46] drm/i915/guc: Add hang check to GuC submit engine Matthew Brost
2021-08-09 15:35 ` Daniel Vetter
2021-08-09 19:05 ` Matthew Brost
2021-08-10 9:18 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 21/46] drm/i915/guc: Add guc_child_context_destroy Matthew Brost
2021-08-09 15:36 ` Daniel Vetter
2021-08-09 19:06 ` Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 22/46] drm/i915/guc: Implement multi-lrc submission Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 23/46] drm/i915/guc: Insert submit fences between requests in parent-child relationship Matthew Brost
2021-08-09 16:32 ` Daniel Vetter
2021-08-09 16:39 ` Matthew Brost
2021-08-09 17:03 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 24/46] drm/i915/guc: Implement multi-lrc reset Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 25/46] drm/i915/guc: Update debugfs for GuC multi-lrc Matthew Brost
2021-08-09 16:36 ` Daniel Vetter
2021-08-09 19:13 ` Matthew Brost
2021-08-10 9:23 ` Daniel Vetter
2021-08-10 9:27 ` Daniel Vetter
2021-08-10 17:29 ` Matthew Brost
2021-08-11 10:04 ` Daniel Vetter
2021-08-11 17:35 ` Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 26/46] drm/i915: Connect UAPI to GuC multi-lrc interface Matthew Brost
2021-08-09 16:37 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 27/46] drm/i915/doc: Update parallel submit doc to point to i915_drm.h Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 28/46] drm/i915/guc: Add basic GuC multi-lrc selftest Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 29/46] drm/i915/guc: Extend GuC flow control selftest for multi-lrc Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 30/46] drm/i915/guc: Implement no mid batch preemption " Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 31/46] drm/i915: Move secure execbuf check to execbuf2 Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 32/46] drm/i915: Move input/exec fence handling to i915_gem_execbuffer2 Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 33/46] drm/i915: Move output " Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 34/46] drm/i915: Return output fence from i915_gem_do_execbuffer Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 35/46] drm/i915: Store batch index in struct i915_execbuffer Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 36/46] drm/i915: Allow callers of i915_gem_do_execbuffer to override the batch index Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 37/46] drm/i915: Teach execbuf there can be more than one batch in the objects list Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 38/46] drm/i915: Only track object dependencies on first request Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 39/46] drm/i915: Force parallel contexts to use copy engine for reloc Matthew Brost
2021-08-09 16:39 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 40/46] drm/i915: Multi-batch execbuffer2 Matthew Brost
2021-08-09 17:02 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 41/46] drm/i915: Eliminate unnecessary VMA calls for multi-BB submission Matthew Brost
2021-08-09 17:07 ` Daniel Vetter
2021-08-09 17:12 ` Daniel Vetter
2021-08-03 22:29 ` [Intel-gfx] [PATCH 42/46] drm/i915: Hold all parallel requests until last request, properly handle error Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 43/46] drm/i915/guc: Handle errors in multi-lrc requests Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 44/46] drm/i915: Enable multi-bb execbuf Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 45/46] drm/i915/execlists: Weak parallel submission support for execlists Matthew Brost
2021-08-03 22:29 ` [Intel-gfx] [PATCH 46/46] drm/i915/guc: Add delay before disabling scheduling on contexts Matthew Brost
2021-08-09 17:17 ` Daniel Vetter
2021-08-09 19:32 ` Matthew Brost
2021-08-11 9:55 ` Daniel Vetter
2021-08-11 17:43 ` Matthew Brost
2021-08-12 14:04 ` Daniel Vetter
2021-08-12 19:26 ` Daniel Vetter
2021-08-03 22:51 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Parallel submission aka multi-bb execbuf (rev2) Patchwork
2021-08-03 22:53 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-08-03 22:57 ` [Intel-gfx] ✗ Fi.CI.DOCS: " Patchwork
2021-08-03 23:19 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-08-05 3:53 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
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