The patch below does not apply to the 5.10-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(a)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-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 78a6ccd65fa3a7cc697810db079cc4b84dff03d5
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023080735-runt-growing-8ee8@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
78a6ccd65fa3 ("drm/i915/gt: Ensure memory quiesced before invalidation")
803efd297e31 ("drm/i915/xehp: compute engine pipe_control")
d0d829e56674 ("drm/i915: split gen8+ flush and bb_start emission functions")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 78a6ccd65fa3a7cc697810db079cc4b84dff03d5 Mon Sep 17 00:00:00 2001
From: Jonathan Cavitt <jonathan.cavitt(a)intel.com>
Date: Tue, 25 Jul 2023 02:19:46 +0200
Subject: [PATCH] drm/i915/gt: Ensure memory quiesced before invalidation
All memory traffic must be quiesced before requesting
an aux invalidation on platforms that use Aux CCS.
Fixes: 972282c4cf24 ("drm/i915/gen12: Add aux table invalidate for all engines")
Requires: a2a4aa0eef3b ("drm/i915: Add the gen12_needs_ccs_aux_inv helper")
Signed-off-by: Jonathan Cavitt <jonathan.cavitt(a)intel.com>
Signed-off-by: Andi Shyti <andi.shyti(a)linux.intel.com>
Cc: <stable(a)vger.kernel.org> # v5.8+
Reviewed-by: Nirmoy Das <nirmoy.das(a)intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda(a)intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230725001950.1014671-4-andi…
(cherry picked from commit ad8ebf12217e451cd19804b1c3e97ad56491c74a)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin(a)intel.com>
diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
index 460c9225a50f..6210b38a2d38 100644
--- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
@@ -214,7 +214,11 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode)
{
struct intel_engine_cs *engine = rq->engine;
- if (mode & EMIT_FLUSH) {
+ /*
+ * On Aux CCS platforms the invalidation of the Aux
+ * table requires quiescing memory traffic beforehand
+ */
+ if (mode & EMIT_FLUSH || gen12_needs_ccs_aux_inv(engine)) {
u32 flags = 0;
int err;
u32 *cs;
The patch below does not apply to the 5.15-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(a)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-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 78a6ccd65fa3a7cc697810db079cc4b84dff03d5
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023080734-coherent-follow-2e84@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
78a6ccd65fa3 ("drm/i915/gt: Ensure memory quiesced before invalidation")
803efd297e31 ("drm/i915/xehp: compute engine pipe_control")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 78a6ccd65fa3a7cc697810db079cc4b84dff03d5 Mon Sep 17 00:00:00 2001
From: Jonathan Cavitt <jonathan.cavitt(a)intel.com>
Date: Tue, 25 Jul 2023 02:19:46 +0200
Subject: [PATCH] drm/i915/gt: Ensure memory quiesced before invalidation
All memory traffic must be quiesced before requesting
an aux invalidation on platforms that use Aux CCS.
Fixes: 972282c4cf24 ("drm/i915/gen12: Add aux table invalidate for all engines")
Requires: a2a4aa0eef3b ("drm/i915: Add the gen12_needs_ccs_aux_inv helper")
Signed-off-by: Jonathan Cavitt <jonathan.cavitt(a)intel.com>
Signed-off-by: Andi Shyti <andi.shyti(a)linux.intel.com>
Cc: <stable(a)vger.kernel.org> # v5.8+
Reviewed-by: Nirmoy Das <nirmoy.das(a)intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda(a)intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230725001950.1014671-4-andi…
(cherry picked from commit ad8ebf12217e451cd19804b1c3e97ad56491c74a)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin(a)intel.com>
diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
index 460c9225a50f..6210b38a2d38 100644
--- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
@@ -214,7 +214,11 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode)
{
struct intel_engine_cs *engine = rq->engine;
- if (mode & EMIT_FLUSH) {
+ /*
+ * On Aux CCS platforms the invalidation of the Aux
+ * table requires quiescing memory traffic beforehand
+ */
+ if (mode & EMIT_FLUSH || gen12_needs_ccs_aux_inv(engine)) {
u32 flags = 0;
int err;
u32 *cs;