Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / qxl / qxl_debugfs.c

diff --git a/kernel/drivers/gpu/drm/qxl/qxl_debugfs.c b/kernel/drivers/gpu/drm/qxl/qxl_debugfs.c
new file mode 100644 (file)
index 0000000..6911b8c
--- /dev/null
+++ b/kernel/drivers/gpu/drm/qxl/qxl_debugfs.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2009 Red Hat <bskeggs@redhat.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+/*
+ * Authors:
+ *  Alon Levy <alevy@redhat.com>
+ */
+
+#include <linux/debugfs.h>
+
+#include "drmP.h"
+#include "qxl_drv.h"
+#include "qxl_object.h"
+
+
+#if defined(CONFIG_DEBUG_FS)
+static int
+qxl_debugfs_irq_received(struct seq_file *m, void *data)
+{
+       struct drm_info_node *node = (struct drm_info_node *) m->private;
+       struct qxl_device *qdev = node->minor->dev->dev_private;
+
+       seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
+       seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
+       seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
+       seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
+       seq_printf(m, "%d\n", qdev->irq_received_error);
+       return 0;
+}
+
+static int
+qxl_debugfs_buffers_info(struct seq_file *m, void *data)
+{
+       struct drm_info_node *node = (struct drm_info_node *) m->private;
+       struct qxl_device *qdev = node->minor->dev->dev_private;
+       struct qxl_bo *bo;
+
+       list_for_each_entry(bo, &qdev->gem.objects, list) {
+               struct reservation_object_list *fobj;
+               int rel;
+
+               rcu_read_lock();
+               fobj = rcu_dereference(bo->tbo.resv->fence);
+               rel = fobj ? fobj->shared_count : 0;
+               rcu_read_unlock();
+
+               seq_printf(m, "size %ld, pc %d, num releases %d\n",
+                          (unsigned long)bo->gem_base.size,
+                          bo->pin_count, rel);
+       }
+       return 0;
+}
+
+static struct drm_info_list qxl_debugfs_list[] = {
+       { "irq_received", qxl_debugfs_irq_received, 0, NULL },
+       { "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL },
+};
+#define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list)
+#endif
+
+int
+qxl_debugfs_init(struct drm_minor *minor)
+{
+#if defined(CONFIG_DEBUG_FS)
+       drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
+                                minor->debugfs_root, minor);
+#endif
+       return 0;
+}
+
+void
+qxl_debugfs_takedown(struct drm_minor *minor)
+{
+#if defined(CONFIG_DEBUG_FS)
+       drm_debugfs_remove_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
+                                minor);
+#endif
+}
+
+int qxl_debugfs_add_files(struct qxl_device *qdev,
+                         struct drm_info_list *files,
+                         unsigned nfiles)
+{
+       unsigned i;
+
+       for (i = 0; i < qdev->debugfs_count; i++) {
+               if (qdev->debugfs[i].files == files) {
+                       /* Already registered */
+                       return 0;
+               }
+       }
+
+       i = qdev->debugfs_count + 1;
+       if (i > QXL_DEBUGFS_MAX_COMPONENTS) {
+               DRM_ERROR("Reached maximum number of debugfs components.\n");
+               DRM_ERROR("Report so we increase QXL_DEBUGFS_MAX_COMPONENTS.\n");
+               return -EINVAL;
+       }
+       qdev->debugfs[qdev->debugfs_count].files = files;
+       qdev->debugfs[qdev->debugfs_count].num_files = nfiles;
+       qdev->debugfs_count = i;
+#if defined(CONFIG_DEBUG_FS)
+       drm_debugfs_create_files(files, nfiles,
+                                qdev->ddev->control->debugfs_root,
+                                qdev->ddev->control);
+       drm_debugfs_create_files(files, nfiles,
+                                qdev->ddev->primary->debugfs_root,
+                                qdev->ddev->primary);
+#endif
+       return 0;
+}
+
+void qxl_debugfs_remove_files(struct qxl_device *qdev)
+{
+#if defined(CONFIG_DEBUG_FS)
+       unsigned i;
+
+       for (i = 0; i < qdev->debugfs_count; i++) {
+               drm_debugfs_remove_files(qdev->debugfs[i].files,
+                                        qdev->debugfs[i].num_files,
+                                        qdev->ddev->control);
+               drm_debugfs_remove_files(qdev->debugfs[i].files,
+                                        qdev->debugfs[i].num_files,
+                                        qdev->ddev->primary);
+       }
+#endif
+}