drm/i915: Display fence register state in debugfs i915_gem_fence_regs node.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 57 insertions, 9 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem_debugfs.c b/drivers/gpu/drm/i915/i915_gem_debugfs.c
index f7e7d3750f8f..5a4cdb5d2871 100644
--- a/drivers/gpu/drm/i915/i915_gem_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_gem_debugfs.c
@@ -41,6 +41,26 @@
 #define FLUSHING_LIST   2
 #define INACTIVE_LIST   3
 
+static const char *get_pin_flag(struct drm_i915_gem_object *obj_priv)
+{
+        if (obj_priv->user_pin_count > 0)
+                return "P";
+        else if (obj_priv->pin_count > 0)
+                return "p";
+        else
+                return " ";
+}
+
+static const char *get_tiling_flag(struct drm_i915_gem_object *obj_priv)
+{
+    switch (obj_priv->tiling_mode) {
+    default:
+    case I915_TILING_NONE: return " ";
+    case I915_TILING_X: return "X";
+    case I915_TILING_Y: return "Y";
+    }
+}
+
 static int i915_gem_object_list_info(struct seq_file *m, void *data)
 {
         struct drm_info_node *node = (struct drm_info_node *) m->private;
@@ -70,19 +90,11 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
 
         list_for_each_entry(obj_priv, head, list)
         {
-                char *pin_description;
                 struct drm_gem_object *obj = obj_priv->obj;
 
-                if (obj_priv->user_pin_count > 0)
-                        pin_description = "P";
-                else if (obj_priv->pin_count > 0)
-                        pin_description = "p";
-                else
-                        pin_description = " ";
-
                 seq_printf(m, "    %p: %s %08x %08x %d",
                            obj,
-                           pin_description,
+                           get_pin_flag(obj_priv),
                            obj->read_domains, obj->write_domain,
                            obj_priv->last_rendering_seqno);
 
@@ -161,6 +173,41 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
         return 0;
 }
 
+static int i915_gem_fence_regs_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;
+        drm_i915_private_t *dev_priv = dev->dev_private;
+        int i;
+
+        seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
+        seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
+        for (i = 0; i < dev_priv->num_fence_regs; i++) {
+                struct drm_gem_object *obj = dev_priv->fence_regs[i].obj;
+
+                if (obj == NULL) {
+                        seq_printf(m, "Fenced object[%2d] = unused\n", i);
+                } else {
+                        struct drm_i915_gem_object *obj_priv;
+
+                        obj_priv = obj->driver_private;
+                        seq_printf(m, "Fenced object[%2d] = %p: %s "
+                                   "%08x %08x %08x %s %08x %08x %d",
+                                   i, obj, get_pin_flag(obj_priv),
+                                   obj_priv->gtt_offset,
+                                   obj->size, obj_priv->stride,
+                                   get_tiling_flag(obj_priv),
+                                   obj->read_domains, obj->write_domain,
+                                   obj_priv->last_rendering_seqno);
+                        if (obj->name)
+                                seq_printf(m, " (name: %d)", obj->name);
+                        seq_printf(m, "\n");
+                }
+        }
+
+        return 0;
+}
+
 static int i915_hws_info(struct seq_file *m, void *data)
 {
         struct drm_info_node *node = (struct drm_info_node *) m->private;
@@ -187,6 +234,7 @@ static struct drm_info_list i915_gem_debugfs_list[] = {
         {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
         {"i915_gem_request", i915_gem_request_info, 0},
         {"i915_gem_seqno", i915_gem_seqno_info, 0},
+        {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
         {"i915_gem_interrupt", i915_interrupt_info, 0},
         {"i915_gem_hws", i915_hws_info, 0},
 };