[SRU][N:linux][PATCH 4/5] drm/i915/xelpg: Add workaround 14019877138

[Thibault Ferrante]

From: Tejas Upadhyay <tejas.upadhyay at intel.com>

BugLink: https://bugs.launchpad.net/bugs/2117716

WA 14019877138 needed for Graphics 12.70/71 both

V2(Jani):
  - Use drm/i915

Signed-off-by: Tejas Upadhyay <tejas.upadhyay at intel.com>
Reviewed-by: Matt Roper <matthew.d.roper at intel.com>
Reviewed-by: Andi Shyti <andi.shyti at linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240103053111.763172-1-tejas.upadhyay@intel.com
(cherry picked from commit c5b32a41946139b9f4f7a087fda2355a90f671cb)
Signed-off-by: Thibault Ferrante <thibault.ferrante at canonical.com>
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index bc1b598d9a098..abeb22928f61d 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -827,6 +827,9 @@ static void xelpg_ctx_workarounds_init(struct intel_engine_cs *engine,
 
 	/* Wa_18019271663 */
 	wa_masked_en(wal, CACHE_MODE_1, MSAA_OPTIMIZATION_REDUC_DISABLE);
+
+	/* Wa_14019877138 */
+	wa_mcr_masked_en(wal, XEHP_PSS_CHICKEN, FD_END_COLLECT);
 }
 
 static void fakewa_disable_nestedbb_mode(struct intel_engine_cs *engine,
-- 
2.48.1