[Intel-gfx] [PATCH] add i915 debugfs implementation

Ben Gamari bgamari at gmail.com
Thu Jan 15 01:27:45 CET 2009


Port old i915-specific proc file entries to debugfs
---
 drivers/gpu/drm/i915/Makefile           |    1 +
 drivers/gpu/drm/i915/i915_drv.c         |    4 +
 drivers/gpu/drm/i915/i915_drv.h         |    4 +
 drivers/gpu/drm/i915/i915_gem_debugfs.c |  205 +++++++++++++++++++++++++++++++
 4 files changed, 214 insertions(+), 0 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/i915_gem_debugfs.c

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 6d037ca..5b3bd5e 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -7,6 +7,7 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
           i915_suspend.o \
 	  i915_gem.o \
 	  i915_gem_debug.o \
+	  i915_gem_debugfs.o \
 	  i915_gem_tiling.o \
 	  intel_display.o \
 	  intel_crt.o \
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 8b85bd7..4ce1136 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -124,6 +124,10 @@ static struct drm_driver driver = {
 	.get_reg_ofs = drm_core_get_reg_ofs,
 	.master_create = i915_master_create,
 	.master_destroy = i915_master_destroy,
+#if defined(CONFIG_DRM_DEBUGFS)
+	.debugfs_init = i915_gem_debugfs_init,
+	.debugfs_cleanup = i915_gem_debugfs_cleanup,
+#endif
 	.gem_init_object = i915_gem_init_object,
 	.gem_free_object = i915_gem_free_object,
 	.gem_vm_ops = &i915_gem_vm_ops,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8cad114..75ffa17 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -613,6 +613,10 @@ void i915_gem_dump_object(struct drm_gem_object *obj, int len,
 			  const char *where, uint32_t mark);
 void i915_dump_lru(struct drm_device *dev, const char *where);
 
+/* i915_debugfs.c */
+int i915_gem_debugfs_init(struct drm_minor *minor);
+void i915_gem_debugfs_cleanup(struct drm_minor *minor);
+
 /* i915_suspend.c */
 extern int i915_save_state(struct drm_device *dev);
 extern int i915_restore_state(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/i915_gem_debugfs.c b/drivers/gpu/drm/i915/i915_gem_debugfs.c
new file mode 100644
index 0000000..5cdd217
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_gem_debugfs.c
@@ -0,0 +1,205 @@
+#include <linux/seq_file.h>
+#include "drmP.h"
+#include "drm.h"
+#include "i915_drm.h"
+#include "i915_drv.h"
+
+#define DRM_I915_RING_DEBUG 1
+
+
+#if defined(CONFIG_DRM_DEBUGFS)
+
+static int i915_gem_active_info(struct seq_file *m, void *data)
+{
+	struct drm_minor *minor = (struct drm_minor *) m->private;
+	struct drm_device *dev = minor->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_object *obj_priv;
+
+	seq_printf(m, "Active:\n");
+	list_for_each_entry(obj_priv, &dev_priv->mm.active_list,
+			list)
+	{
+		struct drm_gem_object *obj = obj_priv->obj;
+		if (obj->name) {
+			seq_printf(m, "    %p(%d): %08x %08x %d\n",
+					obj, obj->name,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		} else {
+			seq_printf(m, "       %p: %08x %08x %d\n",
+					obj,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		}
+	}
+	return 0;
+}
+
+static int i915_gem_flushing_info(struct seq_file *m, void *data)
+{
+	struct drm_minor *minor = (struct drm_minor *) m->private;
+	struct drm_device *dev = minor->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_object *obj_priv;
+
+	seq_printf(m, "Flushing:\n");
+	list_for_each_entry(obj_priv, &dev_priv->mm.flushing_list,
+			list)
+	{
+		struct drm_gem_object *obj = obj_priv->obj;
+		if (obj->name) {
+			seq_printf(m, "    %p(%d): %08x %08x %d\n",
+					obj, obj->name,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		} else {
+			seq_printf(m, "       %p: %08x %08x %d\n", obj,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		}
+	}
+	return 0;
+}
+
+static int i915_gem_inactive_info(struct seq_file *m, void *data)
+{
+	struct drm_minor *minor = (struct drm_minor *) m->private;
+	struct drm_device *dev = minor->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_object *obj_priv;
+
+	seq_printf(m, "Inactive:\n");
+	list_for_each_entry(obj_priv, &dev_priv->mm.inactive_list,
+			list)
+	{
+		struct drm_gem_object *obj = obj_priv->obj;
+		if (obj->name) {
+			seq_printf(m, "    %p(%d): %08x %08x %d\n",
+					obj, obj->name,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		} else {
+			seq_printf(m, "       %p: %08x %08x %d\n", obj,
+					obj->read_domains, obj->write_domain,
+					obj_priv->last_rendering_seqno);
+		}
+	}
+	return 0;
+}
+
+static int i915_gem_request_info(struct seq_file *m, void *data)
+{
+	struct drm_minor *minor = (struct drm_minor *) m->private;
+	struct drm_device *dev = minor->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_request *gem_request;
+
+	seq_printf(m, "Request:\n");
+	list_for_each_entry(gem_request, &dev_priv->mm.request_list,
+			list)
+	{
+		seq_printf(m, "    %d @ %d\n",
+				gem_request->seqno,
+				(int) (jiffies - gem_request->emitted_jiffies));
+	}
+	return 0;
+}
+
+static int i915_gem_seqno_info(struct seq_file *m, void *data)
+{
+	struct drm_minor *minor = (struct drm_minor *) m->private;
+	struct drm_device *dev = minor->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+
+	if (dev_priv->hw_status_page != NULL) {
+		seq_printf(m, "Current sequence: %d\n",
+				i915_get_gem_seqno(dev));
+	} else {
+		seq_printf(m, "Current sequence: hws uninitialized\n");
+	}
+	seq_printf(m, "Waiter sequence:  %d\n",
+			dev_priv->mm.waiting_gem_seqno);
+	seq_printf(m, "IRQ sequence:     %d\n", dev_priv->mm.irq_gem_seqno);
+	return 0;
+}
+
+
+static int i915_interrupt_info(struct seq_file *m, void *data)
+{
+	struct drm_minor *minor = (struct drm_minor *) m->private;
+	struct drm_device *dev = minor->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+
+	seq_printf(m, "Interrupt enable:    %08x\n",
+			I915_READ(IER));
+	seq_printf(m, "Interrupt identity:  %08x\n",
+			I915_READ(IIR));
+	seq_printf(m, "Interrupt mask:      %08x\n",
+			I915_READ(IMR));
+	seq_printf(m, "Pipe A stat:         %08x\n",
+			I915_READ(PIPEASTAT));
+	seq_printf(m, "Pipe B stat:         %08x\n",
+			I915_READ(PIPEBSTAT));
+	seq_printf(m, "Interrupts received: %d\n",
+			atomic_read(&dev_priv->irq_received));
+	if (dev_priv->hw_status_page != NULL) {
+		seq_printf(m, "Current sequence:    %d\n",
+				i915_get_gem_seqno(dev));
+	} else {
+		seq_printf(m, "Current sequence:    hws uninitialized\n");
+	}
+	seq_printf(m, "Waiter sequence:     %d\n",
+			dev_priv->mm.waiting_gem_seqno);
+	seq_printf(m, "IRQ sequence:        %d\n",
+			dev_priv->mm.irq_gem_seqno);
+	return 0;
+}
+
+static int i915_hws_info(struct seq_file *m, void *data)
+{
+	struct drm_minor *minor = (struct drm_minor *) m->private;
+	struct drm_device *dev = minor->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	int i;
+	volatile u32 *hws;
+
+	hws = (volatile u32 *)dev_priv->hw_status_page;
+	if (hws == NULL)
+		return 0;
+
+	for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
+		seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+				i * 4,
+				hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
+	}
+	return 0;
+}
+
+
+
+static struct drm_debugfs_list i915_gem_debugfs_list[] = {
+	{"i915_gem_active", i915_gem_active_info, 0},
+	{"i915_gem_flushing", i915_gem_flushing_info, 0},
+	{"i915_gem_inactive", i915_gem_inactive_info, 0},
+	{"i915_gem_request", i915_gem_request_info, 0},
+	{"i915_gem_seqno", i915_gem_seqno_info, 0},
+	{"i915_gem_interrupt", i915_interrupt_info, 0},
+	{"i915_gem_hws", i915_hws_info, 0},
+};
+
+#define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list)
+
+int i915_gem_debugfs_init(struct drm_minor *minor)
+{
+	return drm_debugfs_create_files(i915_gem_debugfs_list, I915_GEM_DEBUGFS_ENTRIES,
+			minor->debugfs_root, minor);
+}
+
+void i915_gem_debugfs_cleanup(struct drm_minor *minor)
+{
+	drm_debugfs_remove_files(i915_gem_debugfs_list, I915_GEM_DEBUGFS_ENTRIES, minor);
+}
+
+#endif
+
-- 
1.6.0.6




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