[intel] Count received interrupts

Another patch adds this to a /proc/dri file for debugging and monitoring.

diff --git a/shared-core/i915_drv.h b/shared-core/i915_drv.h
index 8777650..9f50033 100644 (file)
--- a/shared-core/i915_drv.h
+++ b/shared-core/i915_drv.h
@@ -119,7 +119,6 @@ typedef struct drm_i915_private {
 
        wait_queue_head_t irq_queue;
        atomic_t irq_received;
-       atomic_t irq_emitted;
 
        int tex_lru_log_granularity;
        int allow_batchbuffer;

diff --git a/shared-core/i915_irq.c b/shared-core/i915_irq.c
index 767181c..c0abcbd 100644 (file)
--- a/shared-core/i915_irq.c
+++ b/shared-core/i915_irq.c
@@ -456,6 +456,7 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 #if 0
        DRM_DEBUG("flag=%08x\n", iir);
 #endif
+       atomic_inc(&dev_priv->irq_received);
        if (iir == 0) {
                DRM_DEBUG ("iir 0x%08x im 0x%08x ie 0x%08x pipea 0x%08x pipeb 0x%08x\n",
                           iir,
@@ -963,6 +964,7 @@ void i915_driver_irq_preinstall(struct drm_device * dev)
 {
        drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
+       atomic_set(&dev_priv->irq_received, 0);
        I915_WRITE(I915REG_HWSTAM, 0xffff);
        I915_WRITE(I915REG_INT_ENABLE_R, 0x0);
        I915_WRITE(I915REG_INT_MASK_R, 0xffffffff);