dev_priv->gt_irq_mask &= ~interrupt_mask;
dev_priv->gt_irq_mask |= (~enabled_irq_mask & interrupt_mask);
I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
- POSTING_READ(GTIMR);
}
void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask)
{
ilk_update_gt_irq(dev_priv, mask, mask);
+ POSTING_READ_FW(GTIMR);
}
void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask)
static void notify_ring(struct intel_engine_cs *engine)
{
- if (!intel_engine_initialized(engine))
- return;
-
- trace_i915_gem_request_notify(engine);
- engine->user_interrupts++;
-
- wake_up_all(&engine->irq_queue);
+ smp_store_mb(engine->irq_posted, true);
+ if (intel_engine_wakeup(engine)) {
+ trace_i915_gem_request_notify(engine);
+ engine->user_interrupts++;
+ }
}
static void vlv_c0_read(struct drm_i915_private *dev_priv,
struct intel_engine_cs *engine;
for_each_engine(engine, dev_priv)
- if (engine->irq_refcount)
+ if (intel_engine_has_waiter(engine))
return true;
return false;
static void ilk_gt_irq_handler(struct drm_i915_private *dev_priv,
u32 gt_iir)
{
- if (gt_iir &
- (GT_RENDER_USER_INTERRUPT | GT_RENDER_PIPECTL_NOTIFY_INTERRUPT))
+ if (gt_iir & GT_RENDER_USER_INTERRUPT)
notify_ring(&dev_priv->engine[RCS]);
if (gt_iir & ILK_BSD_USER_INTERRUPT)
notify_ring(&dev_priv->engine[VCS]);
static void snb_gt_irq_handler(struct drm_i915_private *dev_priv,
u32 gt_iir)
{
-
- if (gt_iir &
- (GT_RENDER_USER_INTERRUPT | GT_RENDER_PIPECTL_NOTIFY_INTERRUPT))
+ if (gt_iir & GT_RENDER_USER_INTERRUPT)
notify_ring(&dev_priv->engine[RCS]);
if (gt_iir & GT_BSD_USER_INTERRUPT)
notify_ring(&dev_priv->engine[VCS]);
return ret;
}
-static void i915_error_wake_up(struct drm_i915_private *dev_priv,
- bool reset_completed)
+static void i915_error_wake_up(struct drm_i915_private *dev_priv)
{
- struct intel_engine_cs *engine;
-
/*
* Notify all waiters for GPU completion events that reset state has
* been changed, and that they need to restart their wait after
*/
/* Wake up __wait_seqno, potentially holding dev->struct_mutex. */
- for_each_engine(engine, dev_priv)
- wake_up_all(&engine->irq_queue);
+ wake_up_all(&dev_priv->gpu_error.wait_queue);
/* Wake up intel_crtc_wait_for_pending_flips, holding crtc->mutex. */
wake_up_all(&dev_priv->pending_flip_queue);
-
- /*
- * Signal tasks blocked in i915_gem_wait_for_error that the pending
- * reset state is cleared.
- */
- if (reset_completed)
- wake_up_all(&dev_priv->gpu_error.reset_queue);
}
/**
* Note: The wake_up also serves as a memory barrier so that
* waiters see the update value of the reset counter atomic_t.
*/
- i915_error_wake_up(dev_priv, true);
+ wake_up_all(&dev_priv->gpu_error.reset_queue);
}
}
* ensure that the waiters see the updated value of the reset
* counter atomic_t.
*/
- i915_error_wake_up(dev_priv, false);
+ i915_error_wake_up(dev_priv);
}
i915_reset_and_wakeup(dev_priv);
}
static bool
-ipehr_is_semaphore_wait(struct drm_i915_private *dev_priv, u32 ipehr)
+ipehr_is_semaphore_wait(struct intel_engine_cs *engine, u32 ipehr)
{
- if (INTEL_GEN(dev_priv) >= 8) {
+ if (INTEL_GEN(engine->i915) >= 8) {
return (ipehr >> 23) == 0x1c;
} else {
ipehr &= ~MI_SEMAPHORE_SYNC_MASK;
return NULL;
ipehr = I915_READ(RING_IPEHR(engine->mmio_base));
- if (!ipehr_is_semaphore_wait(engine->i915, ipehr))
+ if (!ipehr_is_semaphore_wait(engine, ipehr))
return NULL;
/*
if (signaller->hangcheck.deadlock >= I915_NUM_ENGINES)
return -1;
- if (i915_seqno_passed(signaller->get_seqno(signaller), seqno))
+ if (i915_seqno_passed(intel_engine_get_seqno(signaller), seqno))
return 1;
/* cursory check for an unkickable deadlock */
if (engine->hangcheck.user_interrupts == user_interrupts &&
!test_and_set_bit(engine->id, &i915->gpu_error.missed_irq_rings)) {
- if (!(i915->gpu_error.test_irq_rings & intel_engine_flag(engine)))
+ if (!test_bit(engine->id, &i915->gpu_error.test_irq_rings))
DRM_ERROR("Hangcheck timer elapsed... %s idle\n",
engine->name);
- else
- DRM_INFO("Fake missed irq on %s\n",
- engine->name);
- wake_up_all(&engine->irq_queue);
+
+ intel_engine_enable_fake_irq(engine);
}
return user_interrupts;
if (!i915.enable_hangcheck)
return;
- /*
- * The hangcheck work is synced during runtime suspend, we don't
- * require a wakeref. TODO: instead of disabling the asserts make
- * sure that we hold a reference when this work is running.
- */
- DISABLE_RPM_WAKEREF_ASSERTS(dev_priv);
+ if (!lockless_dereference(dev_priv->gt.awake))
+ return;
/* As enabling the GPU requires fairly extensive mmio access,
* periodically arm the mmio checker to see if we are triggering
intel_uncore_arm_unclaimed_mmio_detection(dev_priv);
for_each_engine_id(engine, dev_priv, id) {
- bool busy = waitqueue_active(&engine->irq_queue);
+ bool busy = intel_engine_has_waiter(engine);
u64 acthd;
u32 seqno;
unsigned user_interrupts;
engine->irq_seqno_barrier(engine);
acthd = intel_ring_get_active_head(engine);
- seqno = engine->get_seqno(engine);
+ seqno = intel_engine_get_seqno(engine);
/* Reset stuck interrupts between batch advances */
user_interrupts = 0;
}
}
- if (rings_hung) {
+ if (rings_hung)
i915_handle_error(dev_priv, rings_hung, "Engine(s) hung");
- goto out;
- }
/* Reset timer in case GPU hangs without another request being added */
if (busy_count)
i915_queue_hangcheck(dev_priv);
-
-out:
- ENABLE_RPM_WAKEREF_ASSERTS(dev_priv);
-}
-
-void i915_queue_hangcheck(struct drm_i915_private *dev_priv)
-{
- unsigned long delay;
-
- if (!i915.enable_hangcheck)
- return;
-
- /* Don't continually defer the hangcheck so that it is always run at
- * least once after work has been scheduled on any ring. Otherwise,
- * we will ignore a hung ring if a second ring is kept busy.
- */
-
- delay = round_jiffies_up_relative(DRM_I915_HANGCHECK_JIFFIES);
- queue_delayed_work(system_long_wq,
- &dev_priv->gpu_error.hangcheck_work, delay);
}
static void ibx_irq_reset(struct drm_device *dev)
gt_irqs |= GT_RENDER_USER_INTERRUPT;
if (IS_GEN5(dev)) {
- gt_irqs |= GT_RENDER_PIPECTL_NOTIFY_INTERRUPT |
- ILK_BSD_USER_INTERRUPT;
+ gt_irqs |= ILK_BSD_USER_INTERRUPT;
} else {
gt_irqs |= GT_BLT_USER_INTERRUPT | GT_BSD_USER_INTERRUPT;
}
projects / cascardo / linux.git / blobdiff