A new PVC-specific workaround has just been added to the BSpec.
BSpec: 64027
Signed-off-by: Gustavo Sousa <gustavo.sousa@xxxxxxxxx>
Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_gt_regs.h | 4 ++++
drivers/gpu/drm/i915/gt/intel_workarounds.c | 3 +++
2 files changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
index 37c1095d8603b..e6bb24dc7b998 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
@@ -918,6 +918,10 @@
#define GEN7_L3CNTLREG1 _MMIO(0xb01c)
#define GEN7_WA_FOR_GEN7_L3_CONTROL 0x3C47FF8C
#define GEN7_L3AGDIS (1 << 19)
+
+#define XEHPC_LNCFMISCCFGREG0 _MMIO(0xb01c)
+#define XEHPC_OVRLSCCC REG_BIT(0)
+
#define GEN7_L3CNTLREG2 _MMIO(0xb020)
/* MOCS (Memory Object Control State) registers */
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 3213c593a55f4..dcc1ee392c0d1 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -2687,6 +2687,9 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
* performance guide section.
*/
wa_write(wal, XEHPC_L3SCRUB, SCRUB_CL_DWNGRADE_SHARED | SCRUB_RATE_4B_PER_CLK);
+
+ /* Wa_16016694945 */
+ wa_masked_en(wal, XEHPC_LNCFMISCCFGREG0, XEHPC_OVRLSCCC);
}
if (IS_XEHPSDV(i915)) {
--
2.36.1
