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| author | Lionel Landwerlin <lionel.g.landwerlin@intel.com> | 2018-08-30 14:24:24 +0100 |
|---|---|---|
| committer | Lionel Landwerlin <lionel.g.landwerlin@intel.com> | 2018-08-30 17:00:41 +0100 |
| commit | 096055487115883dc82fdebb5d16444585e4fc24 (patch) | |
| tree | 5952a669c89313e5933718993c1e6c9ae35fba55 /drivers/gpu/drm/i915/i915_gem_gtt.c | |
| parent | 381116d327b55b26cc99fb0fa78526c029fb969b (diff) | |
| download | linux-stable-096055487115883dc82fdebb5d16444585e4fc24.tar.gz linux-stable-096055487115883dc82fdebb5d16444585e4fc24.tar.bz2 linux-stable-096055487115883dc82fdebb5d16444585e4fc24.zip | |
drm/i915: clear error registers after error capture
We need to clear the register in order to get correct value after the
next potential hang.
v2: Centralize error register clearing in i915_irq.c (Chris)
v3: Don't read gen8 register on < gen6 (Chris)
v4: Don't swap gen8+ & gen6+ code... (Chris)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180830132424.21940-1-lionel.g.landwerlin@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 4137af4bd8f5..d9d44639ba26 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -2337,7 +2337,7 @@ static bool needs_idle_maps(struct drm_i915_private *dev_priv) return IS_GEN5(dev_priv) && IS_MOBILE(dev_priv) && intel_vtd_active(); } -static void gen6_check_and_clear_faults(struct drm_i915_private *dev_priv) +static void gen6_check_faults(struct drm_i915_private *dev_priv) { struct intel_engine_cs *engine; enum intel_engine_id id; @@ -2355,15 +2355,11 @@ static void gen6_check_and_clear_faults(struct drm_i915_private *dev_priv) fault & RING_FAULT_GTTSEL_MASK ? "GGTT" : "PPGTT", RING_FAULT_SRCID(fault), RING_FAULT_FAULT_TYPE(fault)); - I915_WRITE(RING_FAULT_REG(engine), - fault & ~RING_FAULT_VALID); } } - - POSTING_READ(RING_FAULT_REG(dev_priv->engine[RCS])); } -static void gen8_check_and_clear_faults(struct drm_i915_private *dev_priv) +static void gen8_check_faults(struct drm_i915_private *dev_priv) { u32 fault = I915_READ(GEN8_RING_FAULT_REG); @@ -2388,22 +2384,20 @@ static void gen8_check_and_clear_faults(struct drm_i915_private *dev_priv) GEN8_RING_FAULT_ENGINE_ID(fault), RING_FAULT_SRCID(fault), RING_FAULT_FAULT_TYPE(fault)); - I915_WRITE(GEN8_RING_FAULT_REG, - fault & ~RING_FAULT_VALID); } - - POSTING_READ(GEN8_RING_FAULT_REG); } void i915_check_and_clear_faults(struct drm_i915_private *dev_priv) { /* From GEN8 onwards we only have one 'All Engine Fault Register' */ if (INTEL_GEN(dev_priv) >= 8) - gen8_check_and_clear_faults(dev_priv); + gen8_check_faults(dev_priv); else if (INTEL_GEN(dev_priv) >= 6) - gen6_check_and_clear_faults(dev_priv); + gen6_check_faults(dev_priv); else return; + + i915_clear_error_registers(dev_priv); } void i915_gem_suspend_gtt_mappings(struct drm_i915_private *dev_priv) |