FAILED: patch "[PATCH] drm/xe: Move page fault init after topology init" failed to apply to 6.15-stable tree

FAILED: patch "[PATCH] drm/xe: Move page fault init after topology init" failed to apply to 6.15-stable tree

[gregkh]

The patch below does not apply to the 6.15-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 <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.15.y
git checkout FETCH_HEAD
git cherry-pick -x 3155ac89251dcb5e35a3ec2f60a74a6ed22c56fd
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2025072101-canola-aspect-c5c7@gregkh' --subject-prefix 'PATCH 6.15.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

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

From 3155ac89251dcb5e35a3ec2f60a74a6ed22c56fd Mon Sep 17 00:00:00 2001
From: Matthew Brost <matthew.brost@intel.com>
Date: Thu, 10 Jul 2025 12:12:08 -0700
Subject: [PATCH] drm/xe: Move page fault init after topology init

We need the topology to determine GT page fault queue size, move page
fault init after topology init.

Cc: stable@vger.kernel.org
Fixes: 3338e4f90c14 ("drm/xe: Use topology to determine page fault queue size")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Link: https://lore.kernel.org/r/20250710191208.1040215-1-matthew.brost@intel.com
(cherry picked from commit beb72acb5b38dbe670d8eb752d1ad7a32f9c4119)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
index 9752a38c0162..d554a8cc565c 100644
--- a/drivers/gpu/drm/xe/xe_gt.c
+++ b/drivers/gpu/drm/xe/xe_gt.c
@@ -632,10 +632,6 @@ int xe_gt_init(struct xe_gt *gt)
 	if (err)
 		return err;
 
-	err = xe_gt_pagefault_init(gt);
-	if (err)
-		return err;
-
 	err = xe_gt_sysfs_init(gt);
 	if (err)
 		return err;
@@ -644,6 +640,10 @@ int xe_gt_init(struct xe_gt *gt)
 	if (err)
 		return err;
 
+	err = xe_gt_pagefault_init(gt);
+	if (err)
+		return err;
+
 	err = xe_gt_idle_init(&gt->gtidle);
 	if (err)
 		return err;

[PATCH 6.15.y 1/2] drm/xe/mocs: Initialize MOCS index early

[Sasha Levin]

From: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>

[ Upstream commit 2a58b21adee3df10ca6f4491af965c4890d2d8e3 ]

MOCS uc_index is used even before it is initialized in the following
callstack
    guc_prepare_xfer()
    __xe_guc_upload()
    xe_guc_min_load_for_hwconfig()
    xe_uc_init_hwconfig()
    xe_gt_init_hwconfig()

Do MOCS index initialization earlier in the device probe.

Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Reviewed-by: Ravi Kumar Vodapalli <ravi.kumar.vodapalli@intel.com>
Link: https://lore.kernel.org/r/20250520142445.2792824-1-balasubramani.vivekanandan@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit 241cc827c0987d7173714fc5a95a7c8fc9bf15c0)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Stable-dep-of: 3155ac89251d ("drm/xe: Move page fault init after topology init")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/xe/xe_gt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
index 4bad8894fa12c..ba7a7f275c4d5 100644
--- a/drivers/gpu/drm/xe/xe_gt.c
+++ b/drivers/gpu/drm/xe/xe_gt.c
@@ -375,6 +375,8 @@ int xe_gt_init_early(struct xe_gt *gt)
 	if (err)
 		return err;
 
+	xe_mocs_init_early(gt);
+
 	return 0;
 }
 
@@ -592,8 +594,6 @@ int xe_gt_init(struct xe_gt *gt)
 	if (err)
 		return err;
 
-	xe_mocs_init_early(gt);
-
 	err = xe_gt_sysfs_init(gt);
 	if (err)
 		return err;
-- 
2.39.5

[PATCH 6.15.y 2/2] drm/xe: Move page fault init after topology init

[Sasha Levin]

From: Matthew Brost <matthew.brost@intel.com>

[ Upstream commit 3155ac89251dcb5e35a3ec2f60a74a6ed22c56fd ]

We need the topology to determine GT page fault queue size, move page
fault init after topology init.

Cc: stable@vger.kernel.org
Fixes: 3338e4f90c14 ("drm/xe: Use topology to determine page fault queue size")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Link: https://lore.kernel.org/r/20250710191208.1040215-1-matthew.brost@intel.com
(cherry picked from commit beb72acb5b38dbe670d8eb752d1ad7a32f9c4119)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/xe/xe_gt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
index ba7a7f275c4d5..fb90bc6e4d0ec 100644
--- a/drivers/gpu/drm/xe/xe_gt.c
+++ b/drivers/gpu/drm/xe/xe_gt.c
@@ -590,15 +590,15 @@ int xe_gt_init(struct xe_gt *gt)
 	if (err)
 		return err;
 
-	err = xe_gt_pagefault_init(gt);
+	err = xe_gt_sysfs_init(gt);
 	if (err)
 		return err;
 
-	err = xe_gt_sysfs_init(gt);
+	err = gt_fw_domain_init(gt);
 	if (err)
 		return err;
 
-	err = gt_fw_domain_init(gt);
+	err = xe_gt_pagefault_init(gt);
 	if (err)
 		return err;
 
-- 
2.39.5