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Commit 77df6772 authored by Ben Widawsky's avatar Ben Widawsky Committed by Daniel Vetter
Browse files

drm/i915/bdw: ppgtt info in debugfs 



It's not so much that the information is terribly useful, but rather
that the gen6/7 information is completely useless.

Signed-off-by: default avatarBen Widawsky <ben@bwidawsk.net>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent b42218c1

drivers/gpu/drm/i915/i915_debugfs.c

+42 −7
Original line number Diff line number Diff line
@@ -1646,18 +1646,37 @@ static int i915_swizzle_info(struct seq_file *m, void *data) 
	return 0;

}



static int i915_ppgtt_info(struct seq_file *m, void *data)

static void gen8_ppgtt_info(struct seq_file *m, struct drm_device *dev)

{

	struct drm_info_node *node = (struct drm_info_node *) m->private;

	struct drm_device *dev = node->minor->dev;

	struct drm_i915_private *dev_priv = dev->dev_private;

	struct intel_ring_buffer *ring;

	int i, ret;

	struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;

	int unused, i;



	if (!ppgtt)

		return;



	seq_printf(m, "Page directories: %d\n", ppgtt->num_pd_pages);

	seq_printf(m, "Page tables: %d\n", ppgtt->num_pt_pages);

	for_each_ring(ring, dev_priv, unused) {

		seq_printf(m, "%s\n", ring->name);

		for (i = 0; i < 4; i++) {

			u32 offset = 0x270 + i * 8;

			u64 pdp = I915_READ(ring->mmio_base + offset + 4);

			pdp <<= 32;

			pdp |= I915_READ(ring->mmio_base + offset);

			for (i = 0; i < 4; i++)

				seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);

		}

	}

}



static void gen6_ppgtt_info(struct seq_file *m, struct drm_device *dev)

{

	struct drm_i915_private *dev_priv = dev->dev_private;

	struct intel_ring_buffer *ring;

	int i;



	ret = mutex_lock_interruptible(&dev->struct_mutex);

	if (ret)

		return ret;

	if (INTEL_INFO(dev)->gen == 6)

		seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
@@ -1676,6 +1695,22 @@ static int i915_ppgtt_info(struct seq_file *m, void *data) 
		seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd_offset);

	}

	seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));

}



static int i915_ppgtt_info(struct seq_file *m, void *data)

{

	struct drm_info_node *node = (struct drm_info_node *) m->private;

	struct drm_device *dev = node->minor->dev;



	int ret = mutex_lock_interruptible(&dev->struct_mutex);

	if (ret)

		return ret;



	if (INTEL_INFO(dev)->gen >= 8)

		gen8_ppgtt_info(m, dev);

	else if (INTEL_INFO(dev)->gen >= 6)

		gen6_ppgtt_info(m, dev);



	mutex_unlock(&dev->struct_mutex);



	return 0;