This will whitelist the HIZ_CHICKEN register so mesa can disable the
optimizations and void hang when using D16_UNORM.
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: Rafael Antognolli <rafael.antognolli@xxxxxxxxx>
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 4 ++++
drivers/gpu/drm/i915/i915_reg.h | 1 +
2 files changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 57a5a39ee902..fbed5bdc9e04 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -598,6 +598,10 @@ static void tgl_ctx_workarounds_init(struct intel_engine_cs *engine,
wa_add(wal, FF_MODE2, FF_MODE2_TDS_TIMER_MASK, val,
IS_TGL_REVID(engine->i915, TGL_REVID_A0, TGL_REVID_A0) ? 0 :
FF_MODE2_TDS_TIMER_MASK);
+
+ /* Wa_1806527549:tgl */
+ WA_SET_BIT_MASKED(HIZ_CHICKEN,
+ GEN12_HZ_DEPTH_TEST_LE_GE_OPTIMIZATION_DISABLE);
}
static void
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index cfc238ffd4ae..49872a1dc7a4 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7843,6 +7843,7 @@ enum {
#define HIZ_CHICKEN _MMIO(0x7018)
# define CHV_HZ_8X8_MODE_IN_1X (1 << 15)
+# define GEN12_HZ_DEPTH_TEST_LE_GE_OPTIMIZATION_DISABLE (1 << 13)
# define BDW_HIZ_POWER_COMPILER_CLOCK_GATING_DISABLE (1 << 3)
#define GEN9_SLICE_COMMON_ECO_CHICKEN0 _MMIO(0x7308)
--
2.25.1
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