FAILED: patch "[PATCH] drm/i915: Restore relaxed padding (OCL_OOB_SUPPRES_ENABLE)" failed to apply to 4.9-stable tree

The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 2eb0964eec5f1d99f9eaf4963eee267acc72b615 Mon Sep 17 00:00:00 2001
From: Chris Wilson <[email protected]>
Date: Wed, 4 Sep 2019 11:07:07 +0100
Subject: [PATCH] drm/i915: Restore relaxed padding (OCL_OOB_SUPPRES_ENABLE)
for skl+

This bit was fliped on for "syncing dependencies between camera and graphics". BSpec has no recollection why, and it is causing unrecoverable GPU hangs with Vulkan compute workloads.

From BSpec, setting bit5 to 0 enables relaxed padding requirements for buffers, 1D and 2D non-array, non-MSAA, non-mip-mapped linear surfaces; and *must* be set to 0h on skl+ to ensure "Out of Bounds" case is suppressed.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110998

index 98dfb086320f..99e8242194c0 100644
@@ -308,11 +308,6 @@ static void gen9_ctx_workarounds_init(struct intel_engine_cs *engine,
 			  FLOW_CONTROL_ENABLE |
 			  PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE);
 
-	/* Syncing dependencies between camera and graphics:skl,bxt,kbl */
-	if (!IS_COFFEELAKE(i915))
-		WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3,
-				  GEN9_DISABLE_OCL_OOB_SUPPRESS_LOGIC);
-
 	/* WaEnableYV12BugFixInHalfSliceChicken7:skl,bxt,kbl,glk,cfl */
 	/* WaEnableSamplerGPGPUPreemptionSupport:skl,bxt,kbl,cfl */
 	WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7,