Merge tag 'drm-intel-next-fixes-2016-07-25' of git://anongit.freedesktop.org/drm-intel into drm-next

Bunch of fixes for the 4.8 merge pull, nothing out of the ordinary. All
suitably marked up with cc: stable where needed.

* tag 'drm-intel-next-fixes-2016-07-25' of git://anongit.freedesktop.org/drm-intel:
  drm/i915/gen9: Add WaInPlaceDecompressionHang
  drm/i915/guc: Revert "drm/i915/guc: enable GuC loading & submission by default"
  drm/i915/bxt: Fix inadvertent CPU snooping due to incorrect MOCS config
  drm/i915/gen9: Clean up MOCS table definitions
  drm/i915: Set legacy properties when using legacy gamma set IOCTL. (v2)
  drm/i915: Enable polling when we don't have hpd
  drm/i915/vlv: Disable HPD in valleyview_crt_detect_hotplug()
  drm/i915/vlv: Reset the ADPA in vlv_display_power_well_init()
  drm/i915/vlv: Make intel_crt_reset() per-encoder
  drm/i915: Unbreak interrupts on pre-gen6
  drm/i915/breadcrumbs: Queue hangcheck before sleeping

1 files changed, 16 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 61e00bf9e87f..cca7792f26d5 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1109,6 +1109,11 @@ static int skl_init_workarounds(struct intel_engine_cs *engine)
         /* WaDisableGafsUnitClkGating:skl */
         WA_SET_BIT(GEN7_UCGCTL4, GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
 
+        /* WaInPlaceDecompressionHang:skl */
+        if (IS_SKL_REVID(dev_priv, SKL_REVID_H0, REVID_FOREVER))
+                WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
+                           GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+
         /* WaDisableLSQCROPERFforOCL:skl */
         ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4);
         if (ret)
@@ -1178,6 +1183,11 @@ static int bxt_init_workarounds(struct intel_engine_cs *engine)
                 WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2,
                                   GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION);
 
+        /* WaInPlaceDecompressionHang:bxt */
+        if (IS_BXT_REVID(dev_priv, BXT_REVID_C0, REVID_FOREVER))
+                WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
+                           GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+
         return 0;
 }
 
@@ -1225,6 +1235,10 @@ static int kbl_init_workarounds(struct intel_engine_cs *engine)
                 GEN7_HALF_SLICE_CHICKEN1,
                 GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE);
 
+        /* WaInPlaceDecompressionHang:kbl */
+        WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
+                   GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+
         /* WaDisableLSQCROPERFforOCL:kbl */
         ret = wa_ring_whitelist_reg(engine, GEN8_L3SQCREG4);
         if (ret)
@@ -1305,7 +1319,8 @@ static int init_render_ring(struct intel_engine_cs *engine)
         if (IS_GEN(dev_priv, 6, 7))
                 I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING));
 
-        I915_WRITE_IMR(engine, ~engine->irq_keep_mask);
+        if (INTEL_INFO(dev_priv)->gen >= 6)
+                I915_WRITE_IMR(engine, ~engine->irq_keep_mask);
 
         return init_workarounds_ring(engine);
 }