drm/i915/icl: WaCL2SFHalfMaxAlloc (6b967dc3) · Commits · 戴 / test

This workarounds an issue with insufficient storage for the CL2 and SF units. v2: Renamed to Wa_1405766107 v3: Wrapped the commit message v4: Rebased on top of the WA refactoring v5: Added References (Mika) v6: - Rebased - s/MACALLOC/MAXALLOC (Mika) - C, not lisp (Chris) References: HSDES#1405766107 Signed-off-by:

Oscar Mateo <oscar.mateo@intel.com> Reviewed-by:

Mika Kuoppala <mika.kuoppala@linux.intel.com> Signed-off-by:

Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1525814984-20039-8-git-send-email-oscar.mateo@intel.com

drivers/gpu/drm/i915/i915_reg.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -8269,6 +8269,10 @@ enum {
		#define GEN11_HASH_CTRL_BIT0 (1 << 0)
		#define GEN11_HASH_CTRL_BIT4 (1 << 12)

		#define GEN11_LSN_UNSLCVC _MMIO(0xB43C)
		#define GEN11_LSN_UNSLCVC_GAFS_HALF_CL2_MAXALLOC (1 << 9)
		#define GEN11_LSN_UNSLCVC_GAFS_HALF_SF_MAXALLOC (1 << 7)

		/* IVYBRIDGE DPF */
		#define GEN7_L3CDERRST1(slice) _MMIO(0xB008 + (slice) * 0x200) /* L3CD Error Status 1 */
		#define GEN7_L3CDERRST1_ROW_MASK (0x7ff<<14)

drivers/gpu/drm/i915/intel_workarounds.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -726,6 +726,13 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
		*/
		I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) \|
		GEN11_LQSC_CLEAN_EVICT_DISABLE);

		/* Wa_1405766107:icl
		* Formerly known as WaCL2SFHalfMaxAlloc
		*/
		I915_WRITE(GEN11_LSN_UNSLCVC, I915_READ(GEN11_LSN_UNSLCVC) \|
		GEN11_LSN_UNSLCVC_GAFS_HALF_SF_MAXALLOC \|
		GEN11_LSN_UNSLCVC_GAFS_HALF_CL2_MAXALLOC);
		}

		void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)

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