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Commit b2223497 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Remove the confusing global waiting/irq seqno 



Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent c2c347a9

drivers/gpu/drm/i915/i915_debugfs.c

+19 −25
Original line number Diff line number Diff line
@@ -319,6 +319,19 @@ static int i915_gem_request_info(struct seq_file *m, void *data) 
	return 0;

}



static void i915_ring_seqno_info(struct seq_file *m,

				 struct intel_ring_buffer *ring)

{

	if (ring->get_seqno) {

		seq_printf(m, "Current sequence (%s): %d\n",

			   ring->name, ring->get_seqno(ring));

		seq_printf(m, "Waiter sequence (%s):  %d\n",

			   ring->name, ring->waiting_seqno);

		seq_printf(m, "IRQ sequence (%s):     %d\n",

			   ring->name, ring->irq_seqno);

	}

}



static int i915_gem_seqno_info(struct seq_file *m, void *data)

{

	struct drm_info_node *node = (struct drm_info_node *) m->private;
@@ -330,15 +343,9 @@ static int i915_gem_seqno_info(struct seq_file *m, void *data) 
	if (ret)

		return ret;



	if (dev_priv->render_ring.status_page.page_addr != NULL) {

		seq_printf(m, "Current sequence: %d\n",

			   dev_priv->render_ring.get_seqno(&dev_priv->render_ring));

	} else {

		seq_printf(m, "Current sequence: hws uninitialized\n");

	}

	seq_printf(m, "Waiter sequence:  %d\n",

			dev_priv->mm.waiting_gem_seqno);

	seq_printf(m, "IRQ sequence:     %d\n", dev_priv->mm.irq_gem_seqno);

	i915_ring_seqno_info(m, &dev_priv->render_ring);

	i915_ring_seqno_info(m, &dev_priv->bsd_ring);

	i915_ring_seqno_info(m, &dev_priv->blt_ring);



	mutex_unlock(&dev->struct_mutex);
@@ -390,22 +397,9 @@ static int i915_interrupt_info(struct seq_file *m, void *data) 
	}

	seq_printf(m, "Interrupts received: %d\n",

		   atomic_read(&dev_priv->irq_received));

	if (dev_priv->render_ring.get_seqno) {

		seq_printf(m, "Current sequence (render):    %d\n",

			   dev_priv->render_ring.get_seqno(&dev_priv->render_ring));

	}

	if (dev_priv->bsd_ring.get_seqno) {

		seq_printf(m, "Current sequence (BSD):    %d\n",

			   dev_priv->bsd_ring.get_seqno(&dev_priv->bsd_ring));

	}

	if (dev_priv->blt_ring.get_seqno) {

		seq_printf(m, "Current sequence (BLT):    %d\n",

			   dev_priv->blt_ring.get_seqno(&dev_priv->blt_ring));

	}

	seq_printf(m, "Waiter sequence:     %d\n",

		   dev_priv->mm.waiting_gem_seqno);

	seq_printf(m, "IRQ sequence:        %d\n",

		   dev_priv->mm.irq_gem_seqno);

	i915_ring_seqno_info(m, &dev_priv->render_ring);

	i915_ring_seqno_info(m, &dev_priv->bsd_ring);

	i915_ring_seqno_info(m, &dev_priv->blt_ring);

	mutex_unlock(&dev->struct_mutex);



	return 0;

drivers/gpu/drm/i915/i915_drv.h

+0 −10
Original line number Diff line number Diff line
@@ -608,16 +608,6 @@ typedef struct drm_i915_private { 
		 */

		struct delayed_work retire_work;



		/**

		 * Waiting sequence number, if any

		 */

		uint32_t waiting_gem_seqno;



		/**

		 * Last seq seen at irq time

		 */

		uint32_t irq_gem_seqno;



		/**

		 * Flag if the X Server, and thus DRM, is not currently in

		 * control of the device.

drivers/gpu/drm/i915/i915_gem.c

+2 −2
Original line number Diff line number Diff line
@@ -1984,7 +1984,7 @@ i915_do_wait_request(struct drm_device *dev, uint32_t seqno, 


		trace_i915_gem_request_wait_begin(dev, seqno);



		ring->waiting_gem_seqno = seqno;

		ring->waiting_seqno = seqno;

		ring->user_irq_get(ring);

		if (interruptible)

			ret = wait_event_interruptible(ring->irq_queue,
@@ -1996,7 +1996,7 @@ i915_do_wait_request(struct drm_device *dev, uint32_t seqno, 
				|| atomic_read(&dev_priv->mm.wedged));



		ring->user_irq_put(ring);

		ring->waiting_gem_seqno = 0;

		ring->waiting_seqno = 0;



		trace_i915_gem_request_wait_end(dev, seqno);

	}

drivers/gpu/drm/i915/i915_irq.c

+3 −3
Original line number Diff line number Diff line
@@ -298,7 +298,7 @@ static void notify_ring(struct drm_device *dev, 
{

	struct drm_i915_private *dev_priv = dev->dev_private;

	u32 seqno = ring->get_seqno(ring);

	ring->irq_gem_seqno = seqno;

	ring->irq_seqno = seqno;

	trace_i915_gem_request_complete(dev, seqno);

	wake_up_all(&ring->irq_queue);

	dev_priv->hangcheck_count = 0;
@@ -1319,10 +1319,10 @@ static bool i915_hangcheck_ring_idle(struct intel_ring_buffer *ring, bool *err) 
	if (list_empty(&ring->request_list) ||

	    i915_seqno_passed(ring->get_seqno(ring), ring_last_seqno(ring))) {

		/* Issue a wake-up to catch stuck h/w. */

		if (ring->waiting_gem_seqno && waitqueue_active(&ring->irq_queue)) {

		if (ring->waiting_seqno && waitqueue_active(&ring->irq_queue)) {

			DRM_ERROR("Hangcheck timer elapsed... %s idle [waiting on %d, at %d], missed IRQ?\n",

				  ring->name,

				  ring->waiting_gem_seqno,

				  ring->waiting_seqno,

				  ring->get_seqno(ring));

			wake_up_all(&ring->irq_queue);

			*err = true;

drivers/gpu/drm/i915/intel_ringbuffer.h

+2 −2
Original line number Diff line number Diff line
@@ -35,8 +35,8 @@ struct intel_ring_buffer { 
	int		size;

	struct intel_hw_status_page status_page;



	u32		irq_gem_seqno;		/* last seq seem at irq time */

	u32		waiting_gem_seqno;

	u32		irq_seqno;		/* last seq seem at irq time */

	u32		waiting_seqno;

	int		user_irq_refcount;

	void		(*user_irq_get)(struct intel_ring_buffer *ring);

	void		(*user_irq_put)(struct intel_ring_buffer *ring);