[Intel-gfx] [PATCH 2/3] drm/i915: Show human readable GGTT view name in debugfs

[Tvrtko Ursulin]

From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

Makes it a little bit more debug friendly not having to
remember which number is what.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 11 ++++++-----
 drivers/gpu/drm/i915/i915_gem_gtt.c | 11 +++++++++++
 drivers/gpu/drm/i915/i915_gem_gtt.h |  3 +++
 3 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 9d36be8..e26799c 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -156,13 +156,14 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 	if (obj->fence_reg != I915_FENCE_REG_NONE)
 		seq_printf(m, " (fence: %d)", obj->fence_reg);
 	list_for_each_entry(vma, &obj->vma_list, vma_link) {
-		seq_printf(m, " (%sgtt offset: %08llx, size: %08llx",
-			   i915_is_ggtt(vma->vm) ? "g" : "pp",
-			   vma->node.start, vma->node.size);
 		if (i915_is_ggtt(vma->vm))
-			seq_printf(m, ", type: %u)", vma->ggtt_view.type);
+			seq_printf(m, " (ggtt %s",
+				   i915_ggtt_view_name(vma->ggtt_view.type));
 		else
-			seq_puts(m, ")");
+			seq_puts(m, " (ppgtt");
+
+		seq_printf(m, " offset: %08llx, size: %08llx)",
+			   vma->node.start, vma->node.size);
 	}
 	if (obj->stolen)
 		seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 17b7df0..e330e6c 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2904,3 +2904,14 @@ i915_ggtt_view_size(struct drm_i915_gem_object *obj,
 		return obj->base.size;
 	}
 }
+
+const char *i915_ggtt_view_name(enum i915_ggtt_view_type type)
+{
+	static const char *names[3] = { "normal",
+					"rotated",
+					"partial" };
+
+	BUILD_BUG_ON(ARRAY_SIZE(names) != I915_GGTT_VIEW_LAST);
+
+	return names[type];
+}
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 0d46dd2..13442e0 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -119,6 +119,7 @@ enum i915_ggtt_view_type {
 	I915_GGTT_VIEW_NORMAL = 0,
 	I915_GGTT_VIEW_ROTATED,
 	I915_GGTT_VIEW_PARTIAL,
+	I915_GGTT_VIEW_LAST /* Do not use and keep last. */
 };
 
 struct intel_rotation_info {
@@ -514,4 +515,6 @@ size_t
 i915_ggtt_view_size(struct drm_i915_gem_object *obj,
 		    const struct i915_ggtt_view *view);
 
+const char *i915_ggtt_view_name(enum i915_ggtt_view_type);
+
 #endif
-- 
2.4.0