1 files changed, 155 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
new file mode 100644
index 000000000000..d79db3698f16
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
@@ -0,0 +1,155 @@
+/*
+ * 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:
+ *  Ben Skeggs <bskeggs@redhat.com>
+ */
+
+#include <linux/debugfs.h>
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+
+static int
+nouveau_debugfs_channel_info(struct seq_file *m, void *data)
+{
+        struct drm_info_node *node = (struct drm_info_node *) m->private;
+        struct nouveau_channel *chan = node->info_ent->data;
+
+        seq_printf(m, "channel id    : %d\n", chan->id);
+
+        seq_printf(m, "cpu fifo state:\n");
+        seq_printf(m, "          base: 0x%08x\n", chan->pushbuf_base);
+        seq_printf(m, "           max: 0x%08x\n", chan->dma.max << 2);
+        seq_printf(m, "           cur: 0x%08x\n", chan->dma.cur << 2);
+        seq_printf(m, "           put: 0x%08x\n", chan->dma.put << 2);
+        seq_printf(m, "          free: 0x%08x\n", chan->dma.free << 2);
+
+        seq_printf(m, "gpu fifo state:\n");
+        seq_printf(m, "           get: 0x%08x\n",
+                                        nvchan_rd32(chan, chan->user_get));
+        seq_printf(m, "           put: 0x%08x\n",
+                                        nvchan_rd32(chan, chan->user_put));
+
+        seq_printf(m, "last fence    : %d\n", chan->fence.sequence);
+        seq_printf(m, "last signalled: %d\n", chan->fence.sequence_ack);
+        return 0;
+}
+
+int
+nouveau_debugfs_channel_init(struct nouveau_channel *chan)
+{
+        struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
+        struct drm_minor *minor = chan->dev->primary;
+        int ret;
+
+        if (!dev_priv->debugfs.channel_root) {
+                dev_priv->debugfs.channel_root =
+                        debugfs_create_dir("channel", minor->debugfs_root);
+                if (!dev_priv->debugfs.channel_root)
+                        return -ENOENT;
+        }
+
+        snprintf(chan->debugfs.name, 32, "%d", chan->id);
+        chan->debugfs.info.name = chan->debugfs.name;
+        chan->debugfs.info.show = nouveau_debugfs_channel_info;
+        chan->debugfs.info.driver_features = 0;
+        chan->debugfs.info.data = chan;
+
+        ret = drm_debugfs_create_files(&chan->debugfs.info, 1,
+                                       dev_priv->debugfs.channel_root,
+                                       chan->dev->primary);
+        if (ret == 0)
+                chan->debugfs.active = true;
+        return ret;
+}
+
+void
+nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
+{
+        struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
+
+        if (!chan->debugfs.active)
+                return;
+
+        drm_debugfs_remove_files(&chan->debugfs.info, 1, chan->dev->primary);
+        chan->debugfs.active = false;
+
+        if (chan == dev_priv->channel) {
+                debugfs_remove(dev_priv->debugfs.channel_root);
+                dev_priv->debugfs.channel_root = NULL;
+        }
+}
+
+static int
+nouveau_debugfs_chipset_info(struct seq_file *m, void *data)
+{
+        struct drm_info_node *node = (struct drm_info_node *) m->private;
+        struct drm_minor *minor = node->minor;
+        struct drm_device *dev = minor->dev;
+        struct drm_nouveau_private *dev_priv = dev->dev_private;
+        uint32_t ppci_0;
+
+        ppci_0 = nv_rd32(dev, dev_priv->chipset >= 0x40 ? 0x88000 : 0x1800);
+
+        seq_printf(m, "PMC_BOOT_0: 0x%08x\n", nv_rd32(dev, NV03_PMC_BOOT_0));
+        seq_printf(m, "PCI ID    : 0x%04x:0x%04x\n",
+                   ppci_0 & 0xffff, ppci_0 >> 16);
+        return 0;
+}
+
+static int
+nouveau_debugfs_memory_info(struct seq_file *m, void *data)
+{
+        struct drm_info_node *node = (struct drm_info_node *) m->private;
+        struct drm_minor *minor = node->minor;
+        struct drm_device *dev = minor->dev;
+
+        seq_printf(m, "VRAM total: %dKiB\n",
+                   (int)(nouveau_mem_fb_amount(dev) >> 10));
+        return 0;
+}
+
+static struct drm_info_list nouveau_debugfs_list[] = {
+        { "chipset", nouveau_debugfs_chipset_info, 0, NULL },
+        { "memory", nouveau_debugfs_memory_info, 0, NULL },
+};
+#define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
+
+int
+nouveau_debugfs_init(struct drm_minor *minor)
+{
+        drm_debugfs_create_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
+                                 minor->debugfs_root, minor);
+        return 0;
+}
+
+void
+nouveau_debugfs_takedown(struct drm_minor *minor)
+{
+        drm_debugfs_remove_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
+                                 minor);
+}