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FAILED: patch "[PATCH] drm/xe/rtp: (De-)whitelist OA registers for all hwe's for a" failed to apply to 7.1-stable tree

PATCH [email protected] 1 participant 1 message Jul 29

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The patch below does not apply to the 7.1-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]>.

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-7.1.y
git checkout FETCH_HEAD
git cherry-pick -x ebba7ce65252a4ab0e3794ff14854df2afca5c08
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2026072903-strongly-dagger-4666@gregkh' --subject-prefix 'PATCH 7.1.y' 'HEAD^..'

Possible dependencies:

thanks,

greg k-h

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

From ebba7ce65252a4ab0e3794ff14854df2afca5c08 Mon Sep 17 00:00:00 2001
From: Ashutosh Dixit <[email protected]>
Date: Mon, 15 Jun 2026 15:42:25 -0700
Subject: [PATCH] drm/xe/rtp: (De-)whitelist OA registers for all hwe's for a
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Whitelist or de-whitelist OA registers for all hwe's on the gt on which the OA stream is opened. This simplifies the case where an oa unit has 0 attached hwe's (but which monitors OA events on the associated GT).

Fixes 828a8eaf37c3 ("drm/xe/oa: Add MMIO trigger support")
Cc [email protected] # v6.12+
Signed-off-by Ashutosh Dixit <[email protected]>
Reviewed-by Umesh Nerlige Ramappa <[email protected]>
Link https://patch.msgid.link/[email protected] open here
(cherry picked from commit 6f73bf8fffa728aa5d5ee143ba318fa0744113a2)
Signed-off-by Thomas Hellström <[email protected]>
drivers/gpu/drm/xe/xe_reg_whitelist.c +31 -1
index 7186998df498..b2e7aabd19d7 100644
@@ -229,7 +229,7 @@ void xe_reg_whitelist_process_engine(struct xe_hw_engine *hwe)
 	whitelist_apply_to_hwe(hwe, &hwe->oa_whitelist, &hwe->reg_sr, first_oa_slot);
 }
 
-__maybe_unused static void __whitelist_oa_regs(struct xe_hw_engine *hwe, bool whitelist)
+static void __whitelist_oa_regs(struct xe_hw_engine *hwe, bool whitelist)
 {
 	struct xe_reg_sr_entry *entry;
 	unsigned long reg;

@@ -244,6 +244,36 @@ __maybe_unused static void __whitelist_oa_regs(struct xe_hw_engine *hwe, bool wh
 	xe_reg_sr_apply_mmio(&hwe->oa_sr, hwe->gt);
 }
 
+/**
+ * xe_reg_whitelist_oa_regs - whitelist oa registers for gt
+ * @gt: gt to whitelist oa registers for
+ *
+ * Whitelist OA registers by resetting RING_FORCE_TO_NONPRIV_DENY
+ */
+void xe_reg_whitelist_oa_regs(struct xe_gt *gt)
+{
+	struct xe_hw_engine *hwe;
+	enum xe_hw_engine_id id;
+
+	for_each_hw_engine(hwe, gt, id)
+		__whitelist_oa_regs(hwe, true);
+}
+
+/**
+ * xe_reg_dewhitelist_oa_regs - dewhitelist oa registers for gt
+ * @gt: gt to dewhitelist oa registers for
+ *
+ * Dewhitelist OA registers by setting RING_FORCE_TO_NONPRIV_DENY
+ */
+void xe_reg_dewhitelist_oa_regs(struct xe_gt *gt)
+{
+	struct xe_hw_engine *hwe;
+	enum xe_hw_engine_id id;
+
+	for_each_hw_engine(hwe, gt, id)
+		__whitelist_oa_regs(hwe, false);
+}
+
 /**
  * xe_reg_whitelist_print_entry - print one whitelist entry
  * @p: DRM printer
drivers/gpu/drm/xe/xe_reg_whitelist.h +4 -0
index 3b64b42fe96e..e1eb1b7d5480 100644
@@ -9,12 +9,16 @@
 #include <linux/types.h>
 
 struct drm_printer;
+struct xe_gt;
 struct xe_hw_engine;
 struct xe_reg_sr;
 struct xe_reg_sr_entry;
 
 void xe_reg_whitelist_process_engine(struct xe_hw_engine *hwe);
 
+void xe_reg_whitelist_oa_regs(struct xe_gt *gt);
+void xe_reg_dewhitelist_oa_regs(struct xe_gt *gt);
+
 void xe_reg_whitelist_print_entry(struct drm_printer *p, unsigned int indent,
 				  u32 reg, struct xe_reg_sr_entry *entry);