[Intel-xe] [PATCH V2] drm/xe/xe2: Add workaround 14020013138

[Tejas Upadhyay]

This workaround applies to Xe2_LPG_MD A0

V2(Matt):
  - Apply WA in lrc context

Signed-off-by: Tejas Upadhyay <tejas.upadhyay at intel.com>
---
 drivers/gpu/drm/xe/regs/xe_gt_regs.h | 3 +++
 drivers/gpu/drm/xe/xe_wa.c           | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
index cc27fe8fc363..5c497a10f9d7 100644
--- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
@@ -93,6 +93,9 @@
 #define XEHP_TILE_ADDR_RANGE(_idx)		XE_REG_MCR(0x4900 + (_idx) * 4)
 #define XEHP_FLAT_CCS_BASE_ADDR			XE_REG_MCR(0x4910)
 
+#define WM_CHICKEN3				XE_REG_MCR(0x5588, XE_REG_OPTION_MASKED)
+#define   HIZ_PLANE_COMPRESSION_DIS		REG_BIT(10)
+
 #define CHICKEN_RASTER_2			XE_REG_MCR(0x6208, XE_REG_OPTION_MASKED)
 #define   TBIMR_FAST_CLIP			REG_BIT(5)
 
diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
index 6572715dfc09..3bdd8e00ff18 100644
--- a/drivers/gpu/drm/xe/xe_wa.c
+++ b/drivers/gpu/drm/xe/xe_wa.c
@@ -715,6 +715,10 @@ static const struct xe_rtp_entry_sr lrc_was[] = {
 	  XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
 	  XE_RTP_ACTIONS(SET(XEHP_PSS_CHICKEN, FD_END_COLLECT))
 	},
+	{ XE_RTP_NAME("14020013138"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0)),
+	  XE_RTP_ACTIONS(SET(WM_CHICKEN3, HIZ_PLANE_COMPRESSION_DIS))
+	},
 
 	{}
 };
-- 
2.25.1