From e6177ec586d19fc62bba833ca0f6939f1a750928 Mon Sep 17 00:00:00 2001
From: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Date: Tue, 27 Sep 2022 17:41:42 -0700
Subject: drm/i915/huc: stall media submission until HuC is loaded
Wait on the fence to be signalled to avoid the submissions finding HuC
not yet loaded.
v2: use dedicaded wait_queue_entry for waiting in HuC load, as submitq
can't be re-used for it.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Tony Ye <tony.ye@intel.com>
Acked-by: Tony Ye <tony.ye@intel.com>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220928004145.745803-13-daniele.ceraolospurio@intel.com
---
drivers/gpu/drm/i915/i915_request.h | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'drivers/gpu/drm/i915/i915_request.h')
diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index 47041ec68df8..f5e1bb5e857a 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -348,6 +348,11 @@ struct i915_request {
#define GUC_PRIO_FINI 0xfe
u8 guc_prio;
+ /**
+ * @hucq: wait queue entry used to wait on the HuC load to complete
+ */
+ wait_queue_entry_t hucq;
+
I915_SELFTEST_DECLARE(struct {
struct list_head link;
unsigned long delay;
--
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