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authorMatthew Brost <matthew.brost@intel.com>2024-05-06 06:47:58 +0300
committerLucas De Marchi <lucas.demarchi@intel.com>2024-05-09 17:41:27 +0300
commitc002bfe644a29ba600c571f2abba13a155a12dcd (patch)
treeaed1e484ccde217b24903b010069859917339731 /drivers/gpu/drm/xe/xe_guc_ct.c
parent7bd9c9f962eb36d5b88bbe4108d368aad3500c05 (diff)
downloadlinux-c002bfe644a29ba600c571f2abba13a155a12dcd.tar.xz
drm/xe: Use ordered WQ for G2H handler
System work queues are shared, use a dedicated work queue for G2H processing to avoid G2H processing getting block behind system tasks. Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Cc: <stable@vger.kernel.org> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Francois Dugast <francois.dugast@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240506034758.3697397-1-matthew.brost@intel.com (cherry picked from commit 50aec9665e0babd62b9eee4e613d9a1ef8d2b7de) Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_guc_ct.c')
-rw-r--r--drivers/gpu/drm/xe/xe_guc_ct.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c
index c62dbd6420db..8bbfa45798e2 100644
--- a/drivers/gpu/drm/xe/xe_guc_ct.c
+++ b/drivers/gpu/drm/xe/xe_guc_ct.c
@@ -120,6 +120,7 @@ static void guc_ct_fini(struct drm_device *drm, void *arg)
{
struct xe_guc_ct *ct = arg;
+ destroy_workqueue(ct->g2h_wq);
xa_destroy(&ct->fence_lookup);
}
@@ -145,6 +146,10 @@ int xe_guc_ct_init(struct xe_guc_ct *ct)
xe_assert(xe, !(guc_ct_size() % PAGE_SIZE));
+ ct->g2h_wq = alloc_ordered_workqueue("xe-g2h-wq", 0);
+ if (!ct->g2h_wq)
+ return -ENOMEM;
+
spin_lock_init(&ct->fast_lock);
xa_init(&ct->fence_lookup);
INIT_WORK(&ct->g2h_worker, g2h_worker_func);