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1// SPDX-License-Identifier: MIT2/*3 * Copyright © 2023 Intel Corporation4 */5 6#include "i915_drv.h"7#include "i915_reg.h"8#include "intel_de.h"9#include "intel_display_wa.h"10 11static void gen11_display_wa_apply(struct drm_i915_private *i915)12{13 /* Wa_14010594013 */14 intel_de_rmw(i915, GEN8_CHICKEN_DCPR_1, 0, ICL_DELAY_PMRSP);15}16 17static void xe_d_display_wa_apply(struct drm_i915_private *i915)18{19 /* Wa_14013723622 */20 intel_de_rmw(i915, CLKREQ_POLICY, CLKREQ_POLICY_MEM_UP_OVRD, 0);21}22 23static void adlp_display_wa_apply(struct drm_i915_private *i915)24{25 /* Wa_22011091694:adlp */26 intel_de_rmw(i915, GEN9_CLKGATE_DIS_5, 0, DPCE_GATING_DIS);27 28 /* Bspec/49189 Initialize Sequence */29 intel_de_rmw(i915, GEN8_CHICKEN_DCPR_1, DDI_CLOCK_REG_ACCESS, 0);30}31 32void intel_display_wa_apply(struct drm_i915_private *i915)33{34 if (IS_ALDERLAKE_P(i915))35 adlp_display_wa_apply(i915);36 else if (DISPLAY_VER(i915) == 12)37 xe_d_display_wa_apply(i915);38 else if (DISPLAY_VER(i915) == 11)39 gen11_display_wa_apply(i915);40}41