drm/xe/xe2: Add initial workarounds

Add the initial collection of gt/engine/lrc workarounds.
While at it, add some newlines around the platform/IP comments to make
them consistent across all workarounds.

v2:
  - FF_MODE is an MCR register (Matt Roper)
  - Group 18032247524 with other Xe2 workarounds (Matt Roper)
  - Move WA changing PSS_CHICKEN to lrc_was[] as for Xe2 that register
    is part of the render context image (Matt Roper)
  - Apply WA 16020518922 only on render engine (Matt Roper)

Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Signed-off-by: Shekhar Chauhan <shekhar.chauhan@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20231024220739.224251-1-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
index 1450af6cab34..ccb075aac7da 100644
--- a/drivers/gpu/drm/xe/xe_wa.c
+++ b/drivers/gpu/drm/xe/xe_wa.c
@@ -232,6 +232,7 @@ static const struct xe_rtp_entry_sr gt_was[] = {
 	},
 
 	/* Xe_LPG */
+
 	{ XE_RTP_NAME("14015795083"),
 	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1271), GRAPHICS_STEP(A0, B0)),
 	  XE_RTP_ACTIONS(CLR(MISCCPCTL, DOP_CLOCK_GATE_RENDER_ENABLE))
@@ -245,6 +246,20 @@ static const struct xe_rtp_entry_sr gt_was[] = {
 	  XE_RTP_ACTIONS(SET(SQCNT1, ENFORCE_RAR))
 	},
 
+	/* Xe2_LPG */
+
+	{ XE_RTP_NAME("16020975621"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0)),
+	  XE_RTP_ACTIONS(SET(XEHP_SLICE_UNIT_LEVEL_CLKGATE, SBEUNIT_CLKGATE_DIS))
+	},
+	{ XE_RTP_NAME("14018157293"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0)),
+	  XE_RTP_ACTIONS(SET(XEHPC_L3CLOS_MASK(0), ~0),
+			 SET(XEHPC_L3CLOS_MASK(1), ~0),
+			 SET(XEHPC_L3CLOS_MASK(2), ~0),
+			 SET(XEHPC_L3CLOS_MASK(3), ~0))
+	},
+
 	{}
 };
 
@@ -527,6 +542,7 @@ static const struct xe_rtp_entry_sr engine_was[] = {
 	},
 
 	/* Xe_LPG */
+
 	{ XE_RTP_NAME("14017856879"),
 	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1271),
 		       FUNC(xe_rtp_match_first_render_or_compute)),
@@ -539,6 +555,41 @@ static const struct xe_rtp_entry_sr engine_was[] = {
 			     XE_RTP_NOCHECK))
 	},
 
+	/* Xe2_LPG */
+
+	{ XE_RTP_NAME("18032247524"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004),
+		       FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, SEQUENTIAL_ACCESS_UPGRADE_DISABLE))
+	},
+	{ XE_RTP_NAME("16018712365"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0_UDW, XE2_ALLOC_DPA_STARVE_FIX_DIS))
+	},
+	{ XE_RTP_NAME("14018957109"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
+		       FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(SET(HALF_SLICE_CHICKEN5, DISABLE_SAMPLE_G_PERFORMANCE))
+	},
+	{ XE_RTP_NAME("16021540221"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
+		       FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(SET(ROW_CHICKEN4, DISABLE_TDL_PUSH))
+	},
+	{ XE_RTP_NAME("14019322943"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
+		       FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0, TGM_WRITE_EOM_FORCE))
+	},
+	{ XE_RTP_NAME("14018471104"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(SET(LSC_CHICKEN_BIT_0_UDW, ENABLE_SMP_LD_RENDER_SURFACE_CONTROL))
+	},
+	{ XE_RTP_NAME("16018737384"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(SET(ROW_CHICKEN, EARLY_EOT_DIS))
+	},
+
 	{}
 };
 
@@ -625,11 +676,34 @@ static const struct xe_rtp_entry_sr lrc_was[] = {
 	},
 
 	/* Xe_LPG */
+
 	{ XE_RTP_NAME("18019271663"),
 	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1271)),
 	  XE_RTP_ACTIONS(SET(CACHE_MODE_1, MSAA_OPTIMIZATION_REDUC_DISABLE))
 	},
 
+	/* Xe2_LPG */
+
+	{ XE_RTP_NAME("16020518922"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), GRAPHICS_STEP(A0, B0),
+		       ENGINE_CLASS(RENDER)),
+	  XE_RTP_ACTIONS(SET(FF_MODE,
+			     DIS_TE_AUTOSTRIP |
+			     DIS_MESH_PARTIAL_AUTOSTRIP |
+			     DIS_MESH_AUTOSTRIP),
+			 SET(VFLSKPD,
+			     DIS_PARTIAL_AUTOSTRIP |
+			     DIS_AUTOSTRIP))
+	},
+	{ XE_RTP_NAME("14019386621"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
+	  XE_RTP_ACTIONS(SET(VF_SCRATCHPAD, XE2_VFG_TED_CREDIT_INTERFACE_DISABLE))
+	},
+	{ XE_RTP_NAME("14019877138"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
+	  XE_RTP_ACTIONS(SET(XEHP_PSS_CHICKEN, FD_END_COLLECT))
+	},
+
 	{}
 };