drm/i915/tdr: Initialize hangcheck struct for each engine
Initialize hangcheck struct during driver load. Since we do the same after
recovering from a reset, this is extracted into a helper function.
v2: remove redundant hangcheck init during load as this is done when
engines are initialized (Chris)
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Tomas Elf <tomas.elf@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1458577619-12006-1-git-send-email-arun.siluvery@linux.intel.com
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 050d860..56eb5f0 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2740,6 +2740,7 @@
extern int intel_gpu_reset(struct drm_device *dev, u32 engine_mask);
extern bool intel_has_gpu_reset(struct drm_device *dev);
extern int i915_reset(struct drm_device *dev);
+extern void intel_engine_init_hangcheck(struct intel_engine_cs *engine);
extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 3a23b95..40ef4ea 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1606,7 +1606,7 @@
engine->next_context_status_buffer = next_context_status_buffer_hw;
DRM_DEBUG_DRIVER("Execlists enabled for %s\n", engine->name);
- memset(&engine->hangcheck, 0, sizeof(engine->hangcheck));
+ intel_engine_init_hangcheck(engine);
return 0;
}
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index df0ef5b..ce59850 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -555,6 +555,11 @@
return (I915_READ_HEAD(engine) & HEAD_ADDR) == 0;
}
+void intel_engine_init_hangcheck(struct intel_engine_cs *engine)
+{
+ memset(&engine->hangcheck, 0, sizeof(engine->hangcheck));
+}
+
static int init_ring_common(struct intel_engine_cs *engine)
{
struct drm_device *dev = engine->dev;
@@ -634,7 +639,7 @@
ringbuf->tail = I915_READ_TAIL(engine) & TAIL_ADDR;
intel_ring_update_space(ringbuf);
- memset(&engine->hangcheck, 0, sizeof(engine->hangcheck));
+ intel_engine_init_hangcheck(engine);
out:
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);