[Intel-gfx] [PATCH 2/2] drm/i915: Add i915 register dumping debugfs file

[Ben Gamari]

Add a debugfs file to dump the entire register range. Here we
assume that reading write-only/reserved registers won't make the chip
angry. Seems to hold true, thankfully.

Signed-off-by: Ben Gamari <bgamari.foss at gmail.com>
---
 drivers/gpu/drm/i915/Makefile   |    1 +
 drivers/gpu/drm/i915/i915_drv.c |    4 ++--
 drivers/gpu/drm/i915/i915_drv.h |    4 ++++
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index dcf0da8..2b95cdb 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -5,6 +5,7 @@
 ccflags-y := -Iinclude/drm
 i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
           i915_suspend.o \
+	  i915_debugfs.o \
 	  i915_gem.o \
 	  i915_gem_debug.o \
 	  i915_gem_tiling.o \
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index e3cb402..2b1131b 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -183,8 +183,8 @@ static struct drm_driver driver = {
 	.master_create = i915_master_create,
 	.master_destroy = i915_master_destroy,
 #if defined(CONFIG_DEBUG_FS)
-	.debugfs_init = i915_gem_debugfs_init,
-	.debugfs_cleanup = i915_gem_debugfs_cleanup,
+	.debugfs_init = i915_debugfs_init,
+	.debugfs_cleanup = i915_debugfs_cleanup,
 #endif
 	.gem_init_object = i915_gem_init_object,
 	.gem_free_object = i915_gem_free_object,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index bb4c2d3..6708dbd 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -704,6 +704,10 @@ void i915_dump_lru(struct drm_device *dev, const char *where);
 int i915_gem_debugfs_init(struct drm_minor *minor);
 void i915_gem_debugfs_cleanup(struct drm_minor *minor);
 
+/* i915_debugfs.c */
+int i915_debugfs_init(struct drm_minor *minor);
+void i915_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);
-- 
1.6.3.3