This is a note to let you know that I've just added the patch titled
drm/i915/mtl: Update workaround 14018575942
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-mtl-update-workaround-14018575942.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1323f55fd895f32ad05847d2b4e51ad076287acc
Author: Tejas Upadhyay <tejas.upadhyay@xxxxxxxxx>
Date: Wed Feb 28 16:07:38 2024 +0530
drm/i915/mtl: Update workaround 14018575942
[ Upstream commit 186bce682772e7346bf7ced5325b5f4ff050ccfb ]
Applying WA 14018575942 only on Compute engine has impact on
some apps like chrome. Updating this WA to apply on Render
engine as well as it is helping with performance on Chrome.
Note: There is no concern from media team thus not applying
WA on media engines. We will revisit if any issues reported
from media team.
V2(Matt):
- Use correct WA number
Fixes: 668f37e1ee11 ("drm/i915/mtl: Update workaround 14018778641")
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@xxxxxxxxx>
Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20240228103738.2018458-1-tejas.upadhyay@xxxxxxxxx
(cherry picked from commit 71271280175aa0ed6673e40cce7c01296bcd05f6)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 72dac27d9332f..c7561d7c55f5e 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1649,6 +1649,7 @@ static void
xelpg_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
{
/* Wa_14018575942 / Wa_18018781329 */
+ wa_mcr_write_or(wal, RENDER_MOD_CTRL, FORCE_MISS_FTLB);
wa_mcr_write_or(wal, COMP_MOD_CTRL, FORCE_MISS_FTLB);
/* Wa_22016670082 */
