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authorOscar Mateo <oscar.mateo@intel.com>2018-05-09 00:29:25 +0300
committerMika Kuoppala <mika.kuoppala@linux.intel.com>2018-05-11 15:54:46 +0300
commit5bcebe76704f43d598c8a8da8dd77ffd3afd754e (patch)
tree2f6ef801d85efc54a388e95448d0051a39b34f6a /drivers/gpu
parentd65dc3e40b80ab63fb0d70c947558d0f49f912da (diff)
downloadlinux-5bcebe76704f43d598c8a8da8dd77ffd3afd754e.tar.xz
drm/i915/icl: WaGAPZPriorityScheme
The default GAPZ arbitrer priority value at power-on has been found to be incorrect. v2: Now renamed to Wa_1405543622 v3: Rebased on top of the WA refactoring v4: Added HSDES reference number (Mika) v5: - Rebased - C, not lisp (Chris) References: HSDES#1405543622 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/1525814984-20039-4-git-send-email-oscar.mateo@intel.com
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h5
-rw-r--r--drivers/gpu/drm/i915/intel_workarounds.c6
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 6aad16ee44ae..c9c2ad5f5844 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -8250,8 +8250,9 @@ enum {
#define GEN8_DOP_CLOCK_GATE_GUC_ENABLE (1<<4)
#define GEN8_DOP_CLOCK_GATE_MEDIA_ENABLE (1<<6)
-#define GEN8_GARBCNTL _MMIO(0xB004)
-#define GEN9_GAPS_TSV_CREDIT_DISABLE (1<<7)
+#define GEN8_GARBCNTL _MMIO(0xB004)
+#define GEN9_GAPS_TSV_CREDIT_DISABLE (1 << 7)
+#define GEN11_ARBITRATION_PRIO_ORDER_MASK (0x3f << 22)
#define GEN10_DFR_RATIO_EN_AND_CHICKEN _MMIO(0x9550)
#define DFR_DISABLE (1 << 9)
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index 73d02d3785d4..44ae0b4f6079 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -699,6 +699,12 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
/* WaPipelineFlushCoherentLines:icl */
I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) |
GEN8_LQSC_FLUSH_COHERENT_LINES);
+
+ /* Wa_1405543622:icl
+ * Formerly known as WaGAPZPriorityScheme
+ */
+ I915_WRITE(GEN8_GARBCNTL, I915_READ(GEN8_GARBCNTL) |
+ GEN11_ARBITRATION_PRIO_ORDER_MASK);
}
void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)