drm/i915: Add Wa_14019877138

Enable Force Dispatch Ends Collection for DG2.

BSpec: 46001

Signed-off-by: Haridhar Kalvala <haridhar.kalvala@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231213064612.480032-1-haridhar.kalvala@intel.com

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
index 9de4170..50962cf 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
@@ -469,6 +469,9 @@
 #define XEHP_PSS_MODE2                         MCR_REG(0x703c)
 #define   SCOREBOARD_STALL_FLUSH_CONTROL       REG_BIT(5)
 
+#define XEHP_PSS_CHICKEN                       MCR_REG(0x7044)
+#define   FD_END_COLLECT                       REG_BIT(5)
+
 #define GEN7_SC_INSTDONE                       _MMIO(0x7100)
 #define GEN12_SC_INSTDONE_EXTRA                        _MMIO(0x7104)
 #define GEN12_SC_INSTDONE_EXTRA2               _MMIO(0x7108)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 4cbf9e5..3eacbc5 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -777,6 +777,9 @@ static void dg2_ctx_workarounds_init(struct intel_engine_cs *engine,
 
        /* Wa_18019271663:dg2 */
        wa_masked_en(wal, CACHE_MODE_1, MSAA_OPTIMIZATION_REDUC_DISABLE);
+
+       /* Wa_14019877138:dg2 */
+       wa_mcr_masked_en(wal, XEHP_PSS_CHICKEN, FD_END_COLLECT);
 }
 
 static void xelpg_ctx_gt_tuning_init(struct intel_engine_cs *engine,