radeon: add bo tracking debugfs
This is to allow debugging of userspace program not freeing buffer
after, which is basicly a memory leak. This print the list of all
gem object along with their size and placement (VRAM,GTT,CPU) and
with the pid of the task that created them.
agd5f: add warning fix
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index fe5c1f6..aa79603 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -84,6 +84,7 @@
return r;
}
*obj = &robj->gem_base;
+ robj->pid = task_pid_nr(current);
mutex_lock(&rdev->gem.mutex);
list_add_tail(&robj->list, &rdev->gem.objects);
@@ -575,3 +576,52 @@
{
return drm_gem_handle_delete(file_priv, handle);
}
+
+#if defined(CONFIG_DEBUG_FS)
+static int radeon_debugfs_gem_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;
+ struct radeon_device *rdev = dev->dev_private;
+ struct radeon_bo *rbo;
+ unsigned i = 0;
+
+ mutex_lock(&rdev->gem.mutex);
+ list_for_each_entry(rbo, &rdev->gem.objects, list) {
+ unsigned domain;
+ const char *placement;
+
+ domain = radeon_mem_type_to_domain(rbo->tbo.mem.mem_type);
+ switch (domain) {
+ case RADEON_GEM_DOMAIN_VRAM:
+ placement = "VRAM";
+ break;
+ case RADEON_GEM_DOMAIN_GTT:
+ placement = " GTT";
+ break;
+ case RADEON_GEM_DOMAIN_CPU:
+ default:
+ placement = " CPU";
+ break;
+ }
+ seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
+ i, radeon_bo_size(rbo) >> 10, radeon_bo_size(rbo) >> 20,
+ placement, (unsigned long)rbo->pid);
+ i++;
+ }
+ mutex_unlock(&rdev->gem.mutex);
+ return 0;
+}
+
+static struct drm_info_list radeon_debugfs_gem_list[] = {
+ {"radeon_gem_info", &radeon_debugfs_gem_info, 0, NULL},
+};
+#endif
+
+int radeon_gem_debugfs_init(struct radeon_device *rdev)
+{
+#if defined(CONFIG_DEBUG_FS)
+ return radeon_debugfs_add_files(rdev, radeon_debugfs_gem_list, 1);
+#endif
+ return 0;
+}