From: Matthew Brost <matthew.brost@intel.com>
To: intel-xe@lists.freedesktop.org
Subject: [PATCH v8 12/33] drm/xe: Move GGTT lock init to alloc
Date: Tue, 7 Oct 2025 06:04:44 -0700 [thread overview]
Message-ID: <20251007130505.2694829-13-matthew.brost@intel.com> (raw)
In-Reply-To: <20251007130505.2694829-1-matthew.brost@intel.com>
The GGTT lock is needed very early during GT initialization for a VF;
move the GGTT lock initialization to the allocation phase.
v8:
- Rework function structure (Michal)
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
drivers/gpu/drm/xe/xe_ggtt.c | 39 +++++++++++++++++++++---------------
1 file changed, 23 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/xe/xe_ggtt.c b/drivers/gpu/drm/xe/xe_ggtt.c
index 7fdd0a97a628..aca7ae5489b9 100644
--- a/drivers/gpu/drm/xe/xe_ggtt.c
+++ b/drivers/gpu/drm/xe/xe_ggtt.c
@@ -159,6 +159,16 @@ static void xe_ggtt_clear(struct xe_ggtt *ggtt, u64 start, u64 size)
}
}
+static void primelockdep(struct xe_ggtt *ggtt)
+{
+ if (!IS_ENABLED(CONFIG_LOCKDEP))
+ return;
+
+ fs_reclaim_acquire(GFP_KERNEL);
+ might_lock(&ggtt->lock);
+ fs_reclaim_release(GFP_KERNEL);
+}
+
/**
* xe_ggtt_alloc - Allocate a GGTT for a given &xe_tile
* @tile: &xe_tile
@@ -169,9 +179,19 @@ static void xe_ggtt_clear(struct xe_ggtt *ggtt, u64 start, u64 size)
*/
struct xe_ggtt *xe_ggtt_alloc(struct xe_tile *tile)
{
- struct xe_ggtt *ggtt = drmm_kzalloc(&tile_to_xe(tile)->drm, sizeof(*ggtt), GFP_KERNEL);
- if (ggtt)
- ggtt->tile = tile;
+ struct xe_device *xe = tile_to_xe(tile);
+ struct xe_ggtt *ggtt;
+
+ ggtt = drmm_kzalloc(&xe->drm, sizeof(*ggtt), GFP_KERNEL);
+ if (!ggtt)
+ return NULL;
+
+ if (drmm_mutex_init(&xe->drm, &ggtt->lock))
+ return NULL;
+
+ primelockdep(ggtt);
+ ggtt->tile = tile;
+
return ggtt;
}
@@ -180,7 +200,6 @@ static void ggtt_fini_early(struct drm_device *drm, void *arg)
struct xe_ggtt *ggtt = arg;
destroy_workqueue(ggtt->wq);
- mutex_destroy(&ggtt->lock);
drm_mm_takedown(&ggtt->mm);
}
@@ -198,16 +217,6 @@ void xe_ggtt_might_lock(struct xe_ggtt *ggtt)
}
#endif
-static void primelockdep(struct xe_ggtt *ggtt)
-{
- if (!IS_ENABLED(CONFIG_LOCKDEP))
- return;
-
- fs_reclaim_acquire(GFP_KERNEL);
- might_lock(&ggtt->lock);
- fs_reclaim_release(GFP_KERNEL);
-}
-
static const struct xe_ggtt_pt_ops xelp_pt_ops = {
.pte_encode_flags = xelp_ggtt_pte_flags,
.ggtt_set_pte = xe_ggtt_set_pte,
@@ -227,8 +236,6 @@ static void __xe_ggtt_init_early(struct xe_ggtt *ggtt, u32 reserved)
{
drm_mm_init(&ggtt->mm, reserved,
ggtt->size - reserved);
- mutex_init(&ggtt->lock);
- primelockdep(ggtt);
}
int xe_ggtt_init_kunit(struct xe_ggtt *ggtt, u32 reserved, u32 size)
--
2.34.1
next prev parent reply other threads:[~2025-10-07 13:05 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-07 13:04 [PATCH v8 00/33] VF migration redesign Matthew Brost
2025-10-07 13:04 ` [PATCH v8 01/33] drm/xe: Add NULL checks to scratch LRC allocation Matthew Brost
2025-10-07 13:04 ` [PATCH v8 02/33] drm/xe: Save off position in ring in which a job was programmed Matthew Brost
2025-10-07 13:04 ` [PATCH v8 03/33] drm/xe/guc: Track pending-enable source in submission state Matthew Brost
2025-10-07 13:04 ` [PATCH v8 04/33] drm/xe: Track LR jobs in DRM scheduler pending list Matthew Brost
2025-10-07 13:04 ` [PATCH v8 05/33] drm/xe: Return first unsignaled job first pending job helper Matthew Brost
2025-10-08 8:27 ` Matthew Auld
2025-10-07 13:04 ` [PATCH v8 06/33] drm/xe: Don't change LRC ring head on job resubmission Matthew Brost
2025-10-07 13:04 ` [PATCH v8 07/33] drm/xe: Make LRC W/A scratch buffer usage consistent Matthew Brost
2025-10-07 13:04 ` [PATCH v8 08/33] drm/xe/vf: Add xe_gt_recovery_pending helper Matthew Brost
2025-10-07 13:04 ` [PATCH v8 09/33] drm/xe/vf: Make VF recovery run on per-GT worker Matthew Brost
2025-10-07 13:04 ` [PATCH v8 10/33] drm/xe/vf: Abort H2G sends during VF post-migration recovery Matthew Brost
2025-10-07 13:04 ` [PATCH v8 11/33] drm/xe/vf: Remove memory allocations from VF post migration recovery Matthew Brost
2025-10-07 13:04 ` Matthew Brost [this message]
2025-10-07 13:37 ` [PATCH v8 12/33] drm/xe: Move GGTT lock init to alloc Michal Wajdeczko
2025-10-07 13:04 ` [PATCH v8 13/33] drm/xe/vf: Close multi-GT GGTT shift race Matthew Brost
2025-10-07 13:04 ` [PATCH v8 14/33] drm/xe/vf: Teardown VF post migration worker on driver unload Matthew Brost
2025-10-07 13:04 ` [PATCH v8 15/33] drm/xe/vf: Don't allow GT reset to be queued during VF post migration recovery Matthew Brost
2025-10-07 13:04 ` [PATCH v8 16/33] drm/xe/vf: Wakeup in GuC backend on " Matthew Brost
2025-10-07 13:04 ` [PATCH v8 17/33] drm/xe/vf: Avoid indefinite blocking in preempt rebind worker for VFs supporting migration Matthew Brost
2025-10-07 13:04 ` [PATCH v8 18/33] drm/xe/vf: Use GUC_HXG_TYPE_EVENT for GuC context register Matthew Brost
2025-10-07 13:04 ` [PATCH v8 19/33] drm/xe/vf: Flush and stop CTs in VF post migration recovery Matthew Brost
2025-10-07 13:04 ` [PATCH v8 20/33] drm/xe/vf: Reset TLB invalidations during " Matthew Brost
2025-10-07 13:04 ` [PATCH v8 21/33] drm/xe/vf: Kickstart after resfix in " Matthew Brost
2025-10-07 13:04 ` [PATCH v8 22/33] drm/xe: Add CTB_H2G_BUFFER_OFFSET define Matthew Brost
2025-10-07 13:34 ` Michal Wajdeczko
2025-10-07 13:04 ` [PATCH v8 23/33] drm/xe/vf: Start CTs before resfix VF post migration recovery Matthew Brost
2025-10-07 14:24 ` Michal Wajdeczko
2025-10-07 13:04 ` [PATCH v8 24/33] drm/xe/vf: Abort VF post migration recovery on failure Matthew Brost
2025-10-07 13:04 ` [PATCH v8 25/33] drm/xe/vf: Replay GuC submission state on pause / unpause Matthew Brost
2025-10-07 13:04 ` [PATCH v8 26/33] drm/xe: Move queue init before LRC creation Matthew Brost
2025-10-07 14:36 ` Lis, Tomasz
2025-10-07 13:04 ` [PATCH v8 27/33] drm/xe/vf: Add debug prints for GuC replaying state during VF recovery Matthew Brost
2025-10-07 13:05 ` [PATCH v8 28/33] drm/xe/vf: Workaround for race condition in GuC firmware during VF pause Matthew Brost
2025-10-07 13:05 ` [PATCH v8 29/33] drm/xe: Use PPGTT addresses for TLB invalidation to avoid GGTT fixups Matthew Brost
2025-10-07 13:05 ` [PATCH v8 30/33] drm/xe/vf: Use primary GT ordered work queue on media GT on PTL VF Matthew Brost
2025-10-08 17:34 ` Lucas De Marchi
2025-10-07 13:05 ` [PATCH v8 31/33] drm/xe/vf: Ensure media GT VF recovery runs after primary GT on PTL Matthew Brost
2025-10-07 13:05 ` [PATCH v8 32/33] drm/xe/vf: Rebase CCS save/restore BB GGTT addresses Matthew Brost
2025-10-07 13:05 ` [PATCH v8 33/33] drm/xe/guc: Increase wait timeout to 2sec after BUSY reply from GuC Matthew Brost
2025-10-07 13:17 ` ✗ CI.checkpatch: warning for VF migration redesign (rev8) Patchwork
2025-10-07 13:18 ` ✓ CI.KUnit: success " Patchwork
2025-10-07 13:57 ` ✓ Xe.CI.BAT: " Patchwork
2025-10-07 17:02 ` ✗ Xe.CI.Full: failure " Patchwork
2025-10-07 20:49 ` Matthew Brost
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