Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4ece66b1 authored by Oscar Mateo's avatar Oscar Mateo Committed by Mika Kuoppala
Browse files

drm/i915/icl: Wa_1406463099 



Prevents an error in the GAM unit. Also known as WaGamTlbPendError

References: HSDES#1406463099
References: HSDES#1406465643
Signed-off-by: default avatarOscar Mateo <oscar.mateo@intel.com>
Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: default avatarMika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1527285939-20113-12-git-send-email-oscar.mateo@intel.com
parent 0bf059f3

drivers/gpu/drm/i915/i915_reg.h

+3 −2
Original line number Original line Diff line number Diff line
@@ -2306,6 +2306,7 @@ enum i915_power_well_id { 
#define   GAMW_ECO_ENABLE_64K_IPS_FIELD 0xF

#define   GAMW_ECO_ENABLE_64K_IPS_FIELD 0xF





#define GAMT_CHKN_BIT_REG	_MMIO(0x4ab8)

#define GAMT_CHKN_BIT_REG	_MMIO(0x4ab8)

#define   GAMT_CHKN_DISABLE_L3_COH_PIPE			(1 << 31)

#define   GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING	(1 << 28)

#define   GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING	(1 << 28)

#define   GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT	(1 << 24)

#define   GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT	(1 << 24)

drivers/gpu/drm/i915/intel_workarounds.c

+7 −0
Original line number Original line Diff line number Diff line
@@ -859,6 +859,13 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv) 
		   PMFLUSHDONE_LNICRSDROP |

		   PMFLUSHDONE_LNICRSDROP |

		   PMFLUSH_GAPL3UNBLOCK |

		   PMFLUSH_GAPL3UNBLOCK |

		   PMFLUSHDONE_LNEBLK);

		   PMFLUSHDONE_LNEBLK);



	/* Wa_1406463099:icl

	 * Formerly known as WaGamTlbPendError

	 */

	I915_WRITE(GAMT_CHKN_BIT_REG,

		   I915_READ(GAMT_CHKN_BIT_REG) |

		   GAMT_CHKN_DISABLE_L3_COH_PIPE);

}

}





void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)

void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)