Merge remote branch 'anholt/drm-intel-next' into drm-next-stage

* anholt/drm-intel-next: (103 commits)
  drm/i915: Use a dmi quirk to skip a broken SDVO TV output.
  drm/i915: enable/disable LVDS port at DPMS time
  drm/i915: check for multiple write domains in pin_and_relocate
  drm/i915: clean-up i915_gem_flush_gpu_write_domain
  drm/i915: reuse i915_gpu_idle helper
  drm/i915: ensure lru ordering of fence_list
  drm/i915: extract fence stealing code
  drm/i915: fixup active list locking in object_unbind
  drm/i915: reuse i915_gem_object_put_fence_reg for fence stealing code
  drm/i915: Add dependency on the intel agp module
  drm/i915: More s/IS_IRONLAKE/HAS_PCH_SPLIT for Sandybridge.
  drm/i915: Correct the Sandybridge chipset info structs.
  drm/i915: Disable the hangcheck reset on Sandybridge until we add support.
  drm/i915: Add a new mobile Sandybridge PCI ID.
  agp/intel: Add a new Sandybridge HB/IG PCI ID combo.
  drm/i915, agp/intel: Fix stolen memory size on Sandybridge
  drm/i915: Correct locking in the modesetting failure path, fixing a BUG_ON.
  drm/i915: Disable the surface tile swizzling on Sandybridge.
  agp/intel: Use a non-reserved value for the cache field of the PTEs.
  drm/i915: Fix sandybridge status page setup.
  ...

1 files changed, 67 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 6579eb4c1f2..e50513a6273 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -34,6 +34,36 @@
 
 int radeon_debugfs_ib_init(struct radeon_device *rdev);
 
+void radeon_ib_bogus_cleanup(struct radeon_device *rdev)
+{
+	struct radeon_ib *ib, *n;
+
+	list_for_each_entry_safe(ib, n, &rdev->ib_pool.bogus_ib, list) {
+		list_del(&ib->list);
+		vfree(ib->ptr);
+		kfree(ib);
+	}
+}
+
+void radeon_ib_bogus_add(struct radeon_device *rdev, struct radeon_ib *ib)
+{
+	struct radeon_ib *bib;
+
+	bib = kmalloc(sizeof(*bib), GFP_KERNEL);
+	if (bib == NULL)
+		return;
+	bib->ptr = vmalloc(ib->length_dw * 4);
+	if (bib->ptr == NULL) {
+		kfree(bib);
+		return;
+	}
+	memcpy(bib->ptr, ib->ptr, ib->length_dw * 4);
+	bib->length_dw = ib->length_dw;
+	mutex_lock(&rdev->ib_pool.mutex);
+	list_add_tail(&bib->list, &rdev->ib_pool.bogus_ib);
+	mutex_unlock(&rdev->ib_pool.mutex);
+}
+
 /*
  * IB.
  */
@@ -142,6 +172,7 @@ int radeon_ib_pool_init(struct radeon_device *rdev)
 
 	if (rdev->ib_pool.robj)
 		return 0;
+	INIT_LIST_HEAD(&rdev->ib_pool.bogus_ib);
 	/* Allocate 1M object buffer */
 	r = radeon_bo_create(rdev, NULL,  RADEON_IB_POOL_SIZE*64*1024,
 				true, RADEON_GEM_DOMAIN_GTT,
@@ -192,6 +223,8 @@ void radeon_ib_pool_fini(struct radeon_device *rdev)
 		return;
 	}
 	mutex_lock(&rdev->ib_pool.mutex);
+	radeon_ib_bogus_cleanup(rdev);
+
 	if (rdev->ib_pool.robj) {
 		r = radeon_bo_reserve(rdev->ib_pool.robj, false);
 		if (likely(r == 0)) {
@@ -349,15 +382,49 @@ static int radeon_debugfs_ib_info(struct seq_file *m, void *data)
 	return 0;
 }
 
+static int radeon_debugfs_ib_bogus_info(struct seq_file *m, void *data)
+{
+	struct drm_info_node *node = (struct drm_info_node *) m->private;
+	struct radeon_device *rdev = node->info_ent->data;
+	struct radeon_ib *ib;
+	unsigned i;
+
+	mutex_lock(&rdev->ib_pool.mutex);
+	if (list_empty(&rdev->ib_pool.bogus_ib)) {
+		mutex_unlock(&rdev->ib_pool.mutex);
+		seq_printf(m, "no bogus IB recorded\n");
+		return 0;
+	}
+	ib = list_first_entry(&rdev->ib_pool.bogus_ib, struct radeon_ib, list);
+	list_del_init(&ib->list);
+	mutex_unlock(&rdev->ib_pool.mutex);
+	seq_printf(m, "IB size %05u dwords\n", ib->length_dw);
+	for (i = 0; i < ib->length_dw; i++) {
+		seq_printf(m, "[%05u]=0x%08X\n", i, ib->ptr[i]);
+	}
+	vfree(ib->ptr);
+	kfree(ib);
+	return 0;
+}
+
 static struct drm_info_list radeon_debugfs_ib_list[RADEON_IB_POOL_SIZE];
 static char radeon_debugfs_ib_names[RADEON_IB_POOL_SIZE][32];
+
+static struct drm_info_list radeon_debugfs_ib_bogus_info_list[] = {
+	{"radeon_ib_bogus", radeon_debugfs_ib_bogus_info, 0, NULL},
+};
 #endif
 
 int radeon_debugfs_ib_init(struct radeon_device *rdev)
 {
 #if defined(CONFIG_DEBUG_FS)
 	unsigned i;
+	int r;
 
+	radeon_debugfs_ib_bogus_info_list[0].data = rdev;
+	r = radeon_debugfs_add_files(rdev, radeon_debugfs_ib_bogus_info_list, 1);
+	if (r)
+		return r;
 	for (i = 0; i < RADEON_IB_POOL_SIZE; i++) {
 		sprintf(radeon_debugfs_ib_names[i], "radeon_ib_%04u", i);
 		radeon_debugfs_ib_list[i].name = radeon_debugfs_ib_names[i];