From 0791898c9e0a07369934490a299c55d50ae98e7a Mon Sep 17 00:00:00 2001
From: Bartosz Dunajski <bartosz.dunajski@intel.com>
Date: Thu, 21 Apr 2022 15:12:57 +0000
Subject: [PATCH] Improve L0 sampler_state programming

Signed-off-by: Bartosz Dunajski <bartosz.dunajski@intel.com>
---
 level_zero/core/source/sampler/sampler_hw.h            | 4 ++--
 level_zero/core/source/sampler/sampler_hw.inl          | 4 +++-
 level_zero/core/source/xe_hpg_core/dg2/sampler_dg2.cpp | 8 ++------
 3 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/level_zero/core/source/sampler/sampler_hw.h b/level_zero/core/source/sampler/sampler_hw.h
index ffdccd86f1..c3c1eedcf3 100644
--- a/level_zero/core/source/sampler/sampler_hw.h
+++ b/level_zero/core/source/sampler/sampler_hw.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020-2021 Intel Corporation
+ * Copyright (C) 2020-2022 Intel Corporation
  *
  * SPDX-License-Identifier: MIT
  *
@@ -19,7 +19,7 @@ struct SamplerCoreFamily : public SamplerImp {
     using BaseClass = SamplerImp;
 
     ze_result_t initialize(Device *device, const ze_sampler_desc_t *desc) override;
-    virtual void appendSamplerStateParams(SAMPLER_STATE *state){};
+
     void copySamplerStateToDSH(void *dynamicStateHeap, const uint32_t dynamicStateHeapSize,
                                const uint32_t offset) override;
 
diff --git a/level_zero/core/source/sampler/sampler_hw.inl b/level_zero/core/source/sampler/sampler_hw.inl
index d220c2205e..2426f2bb09 100644
--- a/level_zero/core/source/sampler/sampler_hw.inl
+++ b/level_zero/core/source/sampler/sampler_hw.inl
@@ -107,7 +107,9 @@ ze_result_t SamplerCoreFamily<gfxCoreFamily>::initialize(Device *device, const z
     samplerState.setMinLod(minLodValue.getRawAccess());
     samplerState.setMaxLod(maxLodValue.getRawAccess());
 
-    appendSamplerStateParams(&samplerState);
+    auto &hwInfo = device->getHwInfo();
+
+    NEO::HwInfoConfig::get(hwInfo.platform.eProductFamily)->adjustSamplerState(&samplerState, hwInfo);
 
     return ZE_RESULT_SUCCESS;
 }
diff --git a/level_zero/core/source/xe_hpg_core/dg2/sampler_dg2.cpp b/level_zero/core/source/xe_hpg_core/dg2/sampler_dg2.cpp
index cb6dd8f6d1..cb3738f7f7 100644
--- a/level_zero/core/source/xe_hpg_core/dg2/sampler_dg2.cpp
+++ b/level_zero/core/source/xe_hpg_core/dg2/sampler_dg2.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021 Intel Corporation
+ * Copyright (C) 2021-2022 Intel Corporation
  *
  * SPDX-License-Identifier: MIT
  *
@@ -14,11 +14,7 @@ template struct SamplerCoreFamily<IGFX_XE_HPG_CORE>;
 template <>
 struct SamplerProductFamily<IGFX_DG2> : public SamplerCoreFamily<IGFX_XE_HPG_CORE> {
     using SamplerCoreFamily::SamplerCoreFamily;
-    void appendSamplerStateParams(SAMPLER_STATE *state) override {
-        if (NEO::DebugManager.flags.ForceSamplerLowFilteringPrecision.get()) {
-            state->setLowQualityFilter(SAMPLER_STATE::LOW_QUALITY_FILTER_ENABLE);
-        }
-    }
+
     ze_result_t initialize(Device *device, const ze_sampler_desc_t *desc) override {
         return SamplerCoreFamily<IGFX_XE_HPG_CORE>::initialize(device, desc);
     };