diff options
| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2017-03-09 13:20:04 +0000 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2017-03-10 07:47:12 +0000 |
| commit | cbf4b77af11ba93ea2ed7effa37da2a39e970851 (patch) | |
| tree | 30592ccf9c19cca8fd44a201ba7769e5cf6c6646 /drivers/gpu/drm/i915/intel_guc_loader.c | |
| parent | 7342a72cc40b4cf50013f8230a6b879e2ba5a73e (diff) | |
| download | op-kernel-dev-cbf4b77af11ba93ea2ed7effa37da2a39e970851.zip op-kernel-dev-cbf4b77af11ba93ea2ed7effa37da2a39e970851.tar.gz | |
drm/i915/guc: Fix request re-submission after reset
In order to ensure no missed interrupts we must first re-direct
the interrupts to GuC, and only then re-submit the requests to
be replayed after a GPU reset. Otherwise context switch can fire
before GuC has been set up to receive it triggering more hangs.
v2: Rebase.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170309132005.1317-1-tvrtko.ursulin@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc_loader.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_guc_loader.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c index 64cdef4..2e24712 100644 --- a/drivers/gpu/drm/i915/intel_guc_loader.c +++ b/drivers/gpu/drm/i915/intel_guc_loader.c @@ -109,26 +109,6 @@ static void guc_interrupts_release(struct drm_i915_private *dev_priv) I915_WRITE(GUC_WD_VECS_IER, 0); } -static void guc_interrupts_capture(struct drm_i915_private *dev_priv) -{ - struct intel_engine_cs *engine; - enum intel_engine_id id; - int irqs; - - /* tell all command streamers to forward interrupts (but not vblank) to GuC */ - irqs = _MASKED_BIT_ENABLE(GFX_INTERRUPT_STEERING); - for_each_engine(engine, dev_priv, id) - I915_WRITE(RING_MODE_GEN7(engine), irqs); - - /* route USER_INTERRUPT to Host, all others are sent to GuC. */ - irqs = GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT | - GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT; - /* These three registers have the same bit definitions */ - I915_WRITE(GUC_BCS_RCS_IER, ~irqs); - I915_WRITE(GUC_VCS2_VCS1_IER, ~irqs); - I915_WRITE(GUC_WD_VECS_IER, ~irqs); -} - static u32 get_gttype(struct drm_i915_private *dev_priv) { /* XXX: GT type based on PCI device ID? field seems unused by fw */ @@ -503,7 +483,6 @@ int intel_guc_setup(struct drm_i915_private *dev_priv) err = i915_guc_submission_enable(dev_priv); if (err) goto fail; - guc_interrupts_capture(dev_priv); } DRM_INFO("GuC %s (firmware %s [version %u.%u])\n", |
