drm/msm: Clean up and enhance the output of the 'gem' debugfs node

Add headers for the 'gem' debugfs file to make it easier to remember
what all the values mean and move the list of virtual address regions
to the next line and add the name and map status to make it clearer
what we are looking at.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 013b023528b8269205648974cd00715168c2ae5a..f24c9fe37aaa25c39e72d02a217bb1008a8e0b8e 100644 (file)
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -763,16 +763,23 @@ void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m)
                break;
        }
 
-       seq_printf(m, "%08x: %c %2d (%2d) %08llx %p\t",
+       seq_printf(m, "%08x: %c %2d (%2d) %08llx %p",
                        msm_obj->flags, is_active(msm_obj) ? 'A' : 'I',
                        obj->name, kref_read(&obj->refcount),
                        off, msm_obj->vaddr);
 
-       /* FIXME: we need to print the address space here too */
-       list_for_each_entry(vma, &msm_obj->vmas, list)
-               seq_printf(m, " %08llx", vma->iova);
+       seq_printf(m, " %08zu%9s\n", obj->size, madv);
 
-       seq_printf(m, " %zu%s\n", obj->size, madv);
+       if (!list_empty(&msm_obj->vmas)) {
+
+               seq_puts(m, "   vmas:");
+
+               list_for_each_entry(vma, &msm_obj->vmas, list)
+                       seq_printf(m, " [%s: %08llx,%s]", vma->aspace->name,
+                               vma->iova, vma->mapped ? "mapped" : "unmapped");
+
+               seq_puts(m, "\n");
+       }
 
        rcu_read_lock();
        fobj = rcu_dereference(robj->fence);
@@ -799,9 +806,10 @@ void msm_gem_describe_objects(struct list_head *list, struct seq_file *m)
        int count = 0;
        size_t size = 0;
 
+       seq_puts(m, "   flags       id ref  offset   kaddr            size     madv\n");
        list_for_each_entry(msm_obj, list, mm_list) {
                struct drm_gem_object *obj = &msm_obj->base;
-               seq_printf(m, "   ");
+               seq_puts(m, "   ");
                msm_gem_describe(obj, m);
                count++;
                size += obj->size;