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Commit 5246ae4b authored by Oscar Mateo's avatar Oscar Mateo Committed by Mika Kuoppala
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drm/i915/icl: WaDisableCleanEvicts 



Avoids an undefined LLC behavior.

BSpec: 9613

v2: Renamed to Wa_1405733216
v3: Spaces around '<<' and fix surrounding code
v4: Rebased on top of the WA refactoring
v5: Added References (Mika)
v6:
  - Rebased
  - C, not lisp (Chris)

References: HSDES#1405733216
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/1525814984-20039-7-git-send-email-oscar.mateo@intel.com
parent f4a35714

drivers/gpu/drm/i915/i915_reg.h

+3 −2
Original line number Diff line number Diff line
@@ -7232,6 +7232,7 @@ enum { 
#define  L3SQ_URB_READ_CAM_MATCH_DISABLE	(1<<27)



#define GEN8_L3SQCREG4				_MMIO(0xb118)

#define  GEN11_LQSC_CLEAN_EVICT_DISABLE		(1 << 6)

#define  GEN8_LQSC_RO_PERF_DIS			(1 << 27)

#define  GEN8_LQSC_FLUSH_COHERENT_LINES		(1 << 21)

drivers/gpu/drm/i915/intel_workarounds.c

+6 −0
Original line number Diff line number Diff line
@@ -720,6 +720,12 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv) 
	I915_WRITE(GEN11_GACB_PERF_CTRL,

		   (I915_READ(GEN11_GACB_PERF_CTRL) & ~GEN11_HASH_CTRL_MASK) |

		   GEN11_HASH_CTRL_BIT0 | GEN11_HASH_CTRL_BIT4);



	/* Wa_1405733216:icl

	 * Formerly known as WaDisableCleanEvicts

	 */

	I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) |

				   GEN11_LQSC_CLEAN_EVICT_DISABLE);

}



void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)